CN219191971U

CN219191971U - Battery replacement equipment and battery replacement station

Info

Publication number: CN219191971U
Application number: CN202223250087.7U
Authority: CN
Inventors: 张建平; 于新瑞; 王凯枫; 姬辉勤; 倪波
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-16
Anticipated expiration: 2032-12-01

Abstract

The utility model relates to the field of power conversion, and provides power conversion equipment and a power conversion station. The battery pack of the electric vehicle is replaced by the battery replacement device, the battery replacement platform is used for replacing the battery pack of the electric vehicle, the moving mechanism comprises a first wheel assembly and at least two second wheel assemblies, the first wheel assemblies are rotationally connected with the battery replacement platform, the second wheel assemblies are in sliding connection with the battery replacement platform, the sliding direction of the sliding battery replacement device is perpendicular to the walking direction of the battery replacement device, and the battery replacement platform can rotate a certain angle in the plane of the battery replacement platform by taking the first wheel assemblies as fulcrums in the sliding torsion process of the battery replacement platform relative to the second wheel assemblies by driving any one second wheel assemblies to move a preset distance, so that the battery pack is replaced conveniently and aligned with the battery pack or the battery pack mounting part, the requirement on parking of the electric vehicle is reduced, and the battery replacement process is simple and accurate to operate.

Description

Battery replacement equipment and battery replacement station

Technical Field

The utility model relates to the field of power conversion, in particular to power conversion equipment and a power conversion station.

Background

At present, when battery packs of electric vehicles are replaced by adopting battery replacement equipment, the requirement on the alignment accuracy of the battery replacement equipment and the battery packs is high, and if the battery packs are not accurately positioned, the battery packs cannot be disassembled and assembled through the battery replacement equipment. When a chassis type power conversion is adopted for a passenger car, the power conversion equipment moves on a track or is fixed at a certain power conversion position, the passenger car stops at a preset position, but the stop position of the passenger car is deflected a little relative to the power conversion equipment, and under the condition, the problem can be solved by adopting a mode of positioning and correcting wheels of the passenger car or lifting the passenger car, namely, the power conversion equipment and a battery pack can be accurately positioned by adjusting the vehicle.

Nowadays, more and more commercial trucks are also beginning to use a power conversion mode to supplement energy for vehicles, and particularly, chassis type power conversion is adopted to improve the power conversion safety. However, considering that heavy vehicles such as trucks or large vehicles have large weight and carrying capacity, the problem of positioning of the power exchange equipment and the vehicle cannot be solved by adopting a vehicle adjustment mode of a passenger car, so that the difficulty of power exchange operation is increased.

Disclosure of Invention

The utility model aims to overcome the defect that in the prior art, electric vehicles, particularly heavy vehicles, in chassis type power conversion, power conversion equipment and vehicles are difficult to position, and provides power conversion equipment and a power conversion station.

The utility model solves the technical problems by the following technical scheme:

a battery exchange apparatus operable to walk along a predetermined track, comprising:

the power exchange platform is used for exchanging a battery pack of the electric vehicle;

the moving mechanism comprises a first wheel assembly and at least two second wheel assemblies, the first wheel assemblies are rotationally connected with the battery pack or the battery pack mounting part, the second wheel assemblies are slidably connected with the battery pack or the battery pack mounting part along the direction perpendicular to the traveling direction of the battery pack, and any one of the second wheel assemblies is driven to move for a preset distance, so that the battery pack or the battery pack mounting part can be aligned by rotating the battery pack or the battery pack mounting part by a preset angle in the plane where the first wheel assemblies are used as fulcrums in the sliding process of the battery pack relative to the second wheel assemblies.

In the technical scheme, the first wheel assembly is rotationally connected with the level changing platform, and the level changing platform can rotate in the plane where the level changing platform is positioned relative to the first wheel assembly; the second wheel assembly is in sliding connection with the level changing platform, the sliding direction is perpendicular to the traveling direction of the power changing equipment, and the power changing platform can slide in the sliding connection direction relative to the second wheel assembly; when any one of the second wheel assemblies is driven to slide for a preset distance relative to the battery replacement platform, the battery replacement platform slides and twists relative to the second wheel assemblies so that the battery replacement platform can rotate around the first wheel assemblies in a certain range, the posture of the battery replacement platform on the plane of the battery replacement platform is adjusted, and the battery replacement platform is aligned with the bottom of the electric vehicle to replace a battery pack. When the electric vehicle is parked with a certain deviation and the relative battery exchange equipment is inclined, the battery pack can be aligned with the battery exchange platform or the battery pack mounting part is aligned with the battery pack on the battery exchange platform by rotating the battery exchange platform in the plane of the battery exchange platform by taking the first wheel assembly as a fulcrum, so that the requirement on parking of the electric vehicle is reduced, and the battery exchange process is simple and accurate.

Preferably, the upper side and the lower side of the first wheel assembly are respectively connected with the level changing platform in a rotating way, and the front side and the rear side of the second wheel assembly along the walking direction are respectively connected with the level changing platform in a sliding way.

In the technical scheme, the upper side and the lower side of the first wheel assembly are rotationally connected with the level changing platform, so that the level changing platform can conveniently rotate in the plane where the level changing platform is positioned, and the corresponding structure of rotational connection is simple; the upper side and the lower side of the first wheel assembly are respectively connected with the level changing platform in a rotating way, so that the relative rotation stability of the first wheel assembly and the level changing platform is improved. The front side and the rear side of the second wheel assembly along the walking direction are in sliding connection with the level changing platform, so that the sliding direction is vertical to the walking direction, and the corresponding sliding connection structure is simple; the front side and the rear side of the second wheel assembly are respectively in sliding connection with the level changing platform, so that stress is uniform during sliding, and the stability of the relative sliding of the second wheel assembly and the level changing platform is improved.

Preferably, the upper side and the lower side of the second wheel assembly are also respectively connected with the level shifting platform in a rotating way.

In the technical scheme, the second wheel assembly is rotationally connected with the level-changing platform so as to facilitate sliding of the second wheel assembly relative to the level-changing platform, and the level-changing platform rotates relative to the second wheel assembly when the level-changing platform rotates around the first wheel assembly, so that the rotation range of the level-changing platform is enlarged, and the adaptive capacity of the level-changing equipment relative to the parking inclination of the electric vehicle is improved. The upper and lower both sides of second wheel subassembly are connected with trading level platform rotation, along the front and back both sides and trading level platform sliding connection of walking direction, have still avoided rotating connection and sliding connection to interfere, simultaneously, also be convenient for rotate the structural arrangement of connection and sliding connection. The upper side and the lower side of the second wheel assembly are respectively connected with the level changing platform in a rotating way, so that the relative rotation stability of the second wheel assembly and the level changing platform is improved.

Preferably, at least two of the second wheel assemblies are located at an end opposite to the first wheel assembly in the traveling direction, and at least one of the second wheel assemblies opposite to the first wheel assembly is provided with a driving mechanism.

In the technical scheme, along the walking direction, the first wheel assembly is located at one end, at least two second wheel assemblies are located at the other end, so that the first wheel assembly and the second wheel assemblies are more reasonably balanced in supporting the power exchange equipment, and stability of the power exchange equipment in walking or rotating is ensured. At least one of the second wheel assemblies positioned in the other end corresponds to the driving mechanism, so that the second wheel assemblies can be driven to slide and twist relative to the power exchange platform in small movement so as to drive the whole power exchange equipment to rotate by taking the first wheel assemblies as fulcrums.

Preferably, the first wheel assembly and the second wheel assembly are both disposed at end angles of the power conversion platform, and each corresponds to a different end angle.

In this technical scheme, through in this technical scheme first wheel subassembly and second wheel subassembly set up at the terminal angle of trading the electric platform respectively for trade electric equipment overall balance nature is good, and improves the bearing capacity who trades electric equipment.

Preferably, the power conversion platform is of a rectangular structure, one end angle of the power conversion platform is provided with the first wheel assembly, the other three end angles are provided with the second wheel assembly, and at least the second wheel assembly positioned at the opposite angle of the first wheel assembly is provided with the driving mechanism.

In the technical scheme, one end angle of the power conversion platform is provided with the first wheel assembly, and the other three end angles are respectively provided with the second wheel assemblies, so that the power conversion platform is balanced in stress and good in overall balance, and the bearing capacity of the power conversion platform and the stability of a walking process are improved. Meanwhile, the level changing platform can rotate or slide relative to each first wheel assembly or each second wheel assembly, so that the rotating amplitude or range is improved, and the adaptive capacity of the level changing equipment relative to the parking inclination of the electric vehicle is improved.

Preferably, the number of the driving mechanisms is two, and the two second wheel assemblies opposite to the first wheel assemblies are arranged in one-to-one correspondence with the two driving mechanisms.

In the technical scheme, the two second wheel assemblies are independently driven, so that the performance requirement on a single driving mechanism can be reduced, the size of the single driving mechanism can be correspondingly reduced, and the flexible arrangement of parts is facilitated. Meanwhile, one driving mechanism can be used for driving the second wheel assemblies to move to realize the rotation of the power exchange equipment, or the two driving mechanisms are used for driving the two second wheel assemblies in an opposite mode to realize the rotation of the power exchange equipment with opposite torsion.

Preferably, the two second wheel assemblies opposite to the first wheel assembly are provided with locking mechanisms, and the locking mechanisms have locking positions and unlocking positions respectively used for locking or unlocking the relative sliding state between the power conversion platform and the second wheel assembly.

In this technical scheme, will slide the locking when trading electric platform and second wheel subassembly and need not slide relatively to avoid rocking each other between second wheel subassembly and the trading electric platform, increase the stability of structure, also avoid trading electric equipment and just rotate relative first wheel subassembly and second wheel subassembly in the walking in-process. When the battery is required to be disassembled and assembled, the battery replacing device is rotated to be aligned with the electric vehicle in the moving process of the second wheel assembly through unlocking, and then the battery replacing platform can be used for disassembling and assembling the battery pack. Therefore, the arrangement of the locking mechanism can improve the controllability of the battery replacing equipment.

Preferably, the first wheel assembly comprises a first wheel, a first mounting seat and a first wheel shaft, the first wheel shaft is connected with the first wheel, the first wheel shaft is mounted in the first mounting seat and can rotate relative to the first mounting seat to drive the power conversion equipment to walk, and the upper part and the lower part of the first mounting seat are rotationally connected with the power conversion platform; and/or the number of the groups of groups,

The second wheel assembly comprises a second wheel, a second mounting seat and a second wheel shaft, the second wheel shaft is connected with the second wheel and can rotate relative to the second mounting seat in the second mounting seat so as to drive the power exchange equipment to walk, and the second mounting seat is connected with the power exchange platform in a sliding manner along the front side and the rear side of the walking direction.

In the technical scheme, the first wheel assembly and the second wheel assembly are used for walking of the power conversion equipment and adjusting the posture of the power conversion platform on the plane where the power conversion platform is located, so that the utilization efficiency is high, and the power conversion equipment is compact in structure. The first wheel is in power connection with the first wheel shaft, the first wheel shaft is in rotary connection with the first mounting seat, and the first mounting seat is in rotary connection with the power conversion platform, namely, the first wheel is connected with the power conversion platform through the first wheel shaft and the first mounting seat, so that the requirements on the relative positions and structures of the first wheel and the power conversion platform are reduced, and the flexible arrangement of parts is facilitated; similarly, the second wheel assembly has a corresponding effect.

Preferably, the upper and lower parts of the first mounting seat are respectively connected with the level changing platform in a rotating manner through a first transfer assembly, the first transfer assembly comprises a first transfer fixing part and a first transfer rotating part, the first transfer fixing part and the first transfer rotating part are arranged into structures capable of bearing radial force and axial force and being connected in a rotating manner, one of the first mounting seat and the level changing platform is fixedly connected with the first transfer fixing part, and the other one of the first mounting seat and the level changing platform is fixedly connected with the first transfer rotating part, so that the level changing platform can rotate relative to the first wheel assembly.

In the technical scheme, the first switching components are respectively arranged above and below the first mounting seat and are connected with the level changing platform, so that the middle area of the first mounting seat can be reserved for mounting the first wheel axle, and the first switching components and the first wheel axle are not interfered with each other. In addition, as the loading of the first switching assembly is multidirectional, the first switching fixing part and the first switching rotating part can bear radial force and axial force, so that the stability of the rotating connection of the power conversion platform and the first mounting part is better, the power transmission is reliable, and the stability of the walking of the power conversion platform can be improved. The connection of first mount pad and first switching fixed part to and change the connection of electric platform and first switching rotation portion and be fixed connection, perhaps first mount pad and first switching rotation portion's connection, and change electric platform and first switching fixed part's connection be fixed connection for connect reliably, and then make the rotation of first wheel subassembly and change electric platform connect, the rotation connection of first mount pad and change electric platform promptly is reliable and convenient for control.

Preferably, the front side and the rear side of the second mounting seat are respectively connected with the level changing platform through a sliding connection assembly, the sliding connection assembly comprises a sliding rail and a sliding block which are matched with each other, one of the second mounting seat and the level changing platform is connected with the sliding rail, and the other is connected with the sliding block.

In this technical scheme, realize the sliding connection of second mount pad and trading the level platform through slide rail and slider, reduced the structure and the mutual position requirement of second mount pad and trading the level platform for simple structure, reliable still be convenient for the nimble arrangement of spare part. Simultaneously, slide rail and slider all are located the front and back both sides of second mount pad for the atress is even when sliding, is favorable to further improving the stability when sliding, compares slide rail and slider setting in the upper and lower side of second mount pad, avoids appearing the eccentric condition of atress and is unfavorable for guaranteeing stable slip.

Preferably, the moving mechanism further comprises a connecting seat, the front side and the rear side of the second mounting seat are respectively connected with the connecting seat through the sliding connection assembly, and the upper part and the lower part of the connecting seat are respectively connected with the level changing platform through a second switching assembly.

In this technical scheme, through the setting of connecting seat, make things convenient for slip subassembly and second switching subassembly installation to but realize between second wheel subassembly and the level change platform both relative slip and relative pivoted function.

Preferably, the moving mechanism further comprises a first stop component, and the first stop component is arranged between the power exchange platform and the first wheel component and is used for locking or unlocking the relative rotation state of the power exchange platform and the first wheel component; preferably, a first gap is formed between the front side and the rear side of the first mounting seat along the walking direction and the level changing platform, the first stop assembly comprises a telescopic first wedge block, when the first stop assembly is in a locking state, the first wedge block extends into the first gap from an original position to limit the relative rotation between the first mounting seat and the level changing platform, and when the first stop assembly is in an unlocking state, the first wedge block is retracted to the original position to release the first gap;

And/or, the moving mechanism further comprises a second stop component, and the second stop component is arranged between the power conversion platform and the second wheel component and is used for locking or unlocking the relative rotation state of the power conversion platform and the second wheel component; preferably, a second gap is formed between the front side and the rear side of the connecting seat along the walking direction and the level changing platform, the second stop assembly comprises a telescopic second wedge block, when the second stop assembly is in a locking state, the second wedge block extends into the second gap from an original position to limit the relative rotation between the connecting seat and the level changing platform, and when the second stop assembly is in an unlocking state, the second wedge block is retracted into the original position to release the second gap.

In this technical scheme, the front and back both sides of first mount pad along the walking direction have first clearance with trading the level platform, and the front and back both sides of connecting seat along the walking direction have the second clearance with trading the level platform, and the existence of first clearance is convenient for first wheel subassembly and trade the level platform relative rotation, and the existence of second clearance is convenient for second wheel subassembly and trade the relative rotation of electric platform. The first wedge block is inserted into the first gap to limit the relative rotation of the first mounting seat and the level changing table of the first wheel assembly, the second wedge block is inserted into the second gap to limit the relative rotation of the connecting seat and the level changing table corresponding to the second wheel assembly, and the device is simple and reliable.

Preferably, the second wheel assembly is provided with a locking mechanism for locking or unlocking the relative sliding state between the sliding rail and the sliding block; preferably, the locking mechanism comprises a projection switchable between an initial position and a preset position, the slide rail and the slider being relatively slidable when the projection is in the initial position; when the extending piece is positioned at a preset position, the extending piece abuts against the sliding rail or is inserted into the sliding rail to limit the relative sliding of the sliding rail and the sliding block.

In the technical scheme, the extending piece abuts against the sliding rail, and the sliding rail and the sliding block are limited to slide relatively through friction force, so that the sliding rail and the sliding block of the sliding rail are locked in the walking process of the battery replacement equipment, and the phenomenon that the whole battery replacement equipment shakes to influence the walking stability caused by the relative sliding of the second wheel assembly and the battery replacement platform is avoided. Or, insert the slide rail through the extension, form the relative slip of bolt structure restriction slide rail and slider, further promote locking mechanism's reliability, and simple structure is convenient for realize.

Preferably, the extending direction of the extending piece points to the side face of the sliding rail, the side face shape of the sliding rail is matched with the end shape of the extending piece or the sliding rail is provided with a locking hole for the extending piece to be inserted; and/or the number of the extending parts is two, and the two extending parts are respectively arranged on the upper side surface and the lower side surface of the sliding rail.

In the technical scheme, the extending piece points to the side face of the sliding rail, and the end shape of the extending piece is matched with the side face shape of the sliding rail to improve the friction force between the extending piece and the sliding rail, so that the locking effect is improved; alternatively, the locking reliability is more effectively ensured by the pin hole fitting form of the protruding member inserted into the locking hole. The extending parts are arranged on the upper part and the lower part of the sliding rail, whether the extending parts are propped against the sliding rail or are inserted into the sliding rail, so that the clamping effect on the sliding rail can be further improved, and the locking reliability is improved.

Preferably, the first wheel of the first wheel assembly and the second wheel of the second wheel assembly are sheaves, and the sheaves can be clamped with the track, so that the first wheel and the second wheel both walk along the track; or, the power exchanging device further comprises a wheel holder sleeved on the track, and each of the first wheel assembly and the second wheel assembly is connected with the wheel holder, so that the first wheel of the first wheel assembly and the second wheel of the second wheel assembly are limited on the track and walk along the track.

In the technical scheme, the first wheel and the second wheel are both limited to walk on the track, so that the traveling route of the power conversion equipment is clear, and the later-stage positioning with the electric vehicle is convenient. The first wheel and the second wheel are arranged to be grooved wheels to travel in cooperation with the track, so that the whole structure of the power exchange equipment is simple, and the power exchange equipment is convenient to manufacture. Or the first wheel and the second wheel are kept on the track through the wheel retainer, so that the requirements on the wheel and the track structure are reduced, meanwhile, the possible blocking of a plurality of wheels under the condition of grooved wheels can be avoided, and the running of the power conversion equipment can be smoother relative to the grooved wheels.

Preferably, the wheel holder comprises a plurality of limiting parts arranged on two sides of the track and a mounting part for mounting the limiting parts, wherein the mounting part is arranged on the track in a crossing manner in the width direction of the track and is connected with the plurality of limiting parts on two sides of the track, and the limiting parts are rotatably arranged to enable the battery replacement equipment to roll along the side wall of the track in a laminating manner in the running process of the track.

In this technical scheme, through such structure setting for first wheel and second wheel can reliably be restricted at the track, thereby change electric installation and march along the established direction, be convenient for later stage and judge electric vehicle and change the deviation between the electric installation well, and then realize counterpoint with electric vehicle through changing the rotation of electric platform. Meanwhile, the limiting part is arranged in a rolling way, friction to a preset rail is reduced, the service lives of the limiting part and the rail are prolonged, the limiting part is attached to the side wall of the rail, shaking of the wheel retainer in the width direction of the rail can be reduced or avoided, and the walking stability of the power conversion equipment is further improved.

Preferably, the mounting portion includes a mounting plate located above the rail and connected to the first wheel assembly or the second wheel assembly, and an extension plate extending downward from two sides of the mounting plate to two sides of the rail, the extension plate being used for connecting the limiting portion, the mounting plate having a wheel receiving area for receiving the first wheel or the second wheel, such that the first wheel and the second wheel are engaged with an upper surface of the rail and travel on the rail.

In this technical scheme, through setting up the extension board in order to connect spacing portion from mounting panel both sides downwardly extending, make spacing position in orbital both sides, simple, reliable, the realization of being convenient for. Through setting up the wheel and hold the district in order to hold first wheel or second wheel, be convenient for through the cooperation of wheel hold district with first wheel, second wheel in order to improve the stability of first wheel, second wheel walking.

The utility model provides a trade power station for supply trades the electric vehicle and drive into and carry out battery package change, it includes track and the trade electric equipment of arbitrary technical scheme above, trade electric equipment can follow the track walking, just trade electric platform of trade electric equipment can rotate in its place plane in order to with battery package or battery package installation department counterpoint.

The utility model has the positive progress effects that: the first wheel component is rotationally connected with the level-changing platform, the second wheel component is slidingly connected with the level-changing platform, and the corresponding direction of the sliding connection is vertical to the running direction of the power-changing equipment, so that the level-changing platform can rotate in a certain range in the plane where the level-changing platform is located by driving the second wheel component to slide and twist relative to the level-changing platform, when the electric vehicle is inclined relative to the specific battery replacement device or the battery replacement platform due to certain deviation during parking, the battery pack is replaced by adjusting the posture of the battery replacement platform on the plane where the battery replacement platform is located, so that the parking requirements on the electric vehicle are reduced, and the battery replacement operation is more convenient.

Drawings

Fig. 1 is a schematic structural diagram of a power conversion device on a track according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a first wheel assembly, a wheel holder, and a first adapter assembly according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a wheel holder according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of a first wheel assembly and a first adapter assembly according to an embodiment of the present utility model.

Fig. 5 is a cross-sectional view of a first wheel assembly, a first adapter assembly, in accordance with an embodiment of the present utility model.

Fig. 6 is a schematic diagram illustrating a connection structure between two second wheel assemblies and a moving frame according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of a second wheel assembly and a connecting structure thereof according to an embodiment of the utility model.

Fig. 8 is a schematic structural diagram of a second wheel assembly, a second adapter assembly, and a connecting seat according to an embodiment of the utility model.

Fig. 9 is a schematic structural diagram of a sliding connection assembly, a second switching assembly and a connecting seat according to an embodiment of the utility model.

Fig. 10 is a cross-sectional view of a sliding connection assembly, a second switching assembly and a connection seat according to an embodiment of the utility model.

Fig. 11 is a cross-sectional view of a second wheel assembly, a second adapter assembly, and a connection block according to an embodiment of the present utility model.

Fig. 12 is a partial schematic structural view of a first wheel assembly attachment according to another embodiment of the present utility model.

Fig. 13 is a partial schematic structural view of a first wheel assembly attachment according to another embodiment of the present utility model.

FIG. 14 is a schematic partial structural view of a second wheel assembly accessory according to another embodiment of the present utility model.

FIG. 15 is a schematic partial structural view of a second wheel assembly accessory according to another embodiment of the present utility model.

Reference numerals illustrate:

rail 2000, power conversion apparatus 1000, traveling direction a, wheel assembly 1, first wheel assembly 11, first wheel 111, first wheel axle 112, first mount 113, sub-plate 1131, second wheel assembly 12, second wheel 121, second wheel axle 122, second mount 123, first adapter assembly 21, first adapter fixing portion 211, first adapter rotating portion 212, second adapter assembly 22, second adapter fixing portion 221, second adapter rotating portion 222, slip joint assembly 3, slide rail 31, slide block 32, connection seat 4, wheel holder 5, limit portion 51, mounting plate 521, extension plate 522, wheel accommodation area 523, side mounting plate 524, driving mechanism 6, power conversion table 7, moving frame 71, first cylinder 811, second cylinder 812, first wedge 821, second wedge 822.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

Fig. 1 to 11 are schematic structural diagrams of a power conversion device 1000 and a rail 2000 according to an embodiment of the present utility model.

As shown in fig. 1, the power conversion device 1000 provided by the present utility model may walk along a track 2000, and a walking direction a is an extending direction of the track 2000, where the power conversion device 1000 includes:

a battery changing table 7 for changing a battery pack of the electric vehicle;

the moving mechanism is used for adjusting the gesture of the power conversion platform 7; specifically, the moving mechanism includes a wheel assembly 1, the wheel assembly 1 includes a first wheel assembly 11 and three second wheel assemblies 12, where the first wheel assembly 11 is rotationally connected to the level shifter 7, each second wheel assembly 12 is slidingly connected to the level shifter 7, the direction of the sliding connection is located approximately in a horizontal plane, and the direction of the sliding connection is perpendicular to the extending direction of the rail 2000, and any one of the second wheel assemblies 12 is driven to move along the rail 2000 by a preset distance, and because the level shifter 1000 is running along the rail 2000, when the second wheel assembly 12 moves by the preset distance, the second wheel assembly 12 still keeps the running direction corresponding to the rail 2000, and slides relative to the level shifter 7, so that the level shifter 7 can twist and rotate by a certain angle in the plane where the level shifter 7 is located with the first wheel assembly 11 as a fulcrum, so as to adjust the posture of the level shifter 7 to align with a battery pack or a battery pack mounting part on the electric vehicle.

In the present embodiment, the first wheel assembly 11 and the second wheel assembly 12 are each provided with an end angle of the power exchanging platform 7, and each of the first wheel assembly 11 and the second wheel assembly 12 is provided at a different end angle position. As shown in fig. 1, the level changing platform 7 in this embodiment has a rectangular structure and four end angles, and one first wheel assembly 11 and three second wheel assemblies 12 respectively correspond to one end angle and are located around the level changing platform 7. Meanwhile, since the first wheel assemblies 11 are rotatably connected with the level changing platform 7, and the second wheel assemblies 12 are slidably connected with the level changing platform, the level changing platform can rotate or slide relative to each first wheel assembly 11 or each second wheel assembly 12, so that the rotation amplitude or range is improved, and the adaptability of the power changing device 1000 to the parking and tilting of the electric vehicle is improved.

In another embodiment, the moving mechanism may also include a first wheel assembly 11 and two second wheel assemblies 12, where one first wheel assembly is located at one end of the power exchange device 1000 and two second wheel assemblies 12 are located at the other end of the level shifter 7, that is, both second wheel assemblies 12 are located at opposite ends of the first wheel assembly 11 along the traveling direction a of the power exchange device 1000. In this case, the first wheel assembly 11 is generally disposed in the middle of one end of the level shifter 7 along the direction perpendicular to the traveling direction a, and the second wheel assemblies 12 are disposed on both sides of the other end of the level shifter 7 along the direction perpendicular to the traveling direction a, so that one first wheel assembly 11 and two second wheel assemblies 12 are leased into a relatively balanced triangle form to support the level shifter 7, so as to improve the stability of the level shifter 7.

Further, in other embodiments, the shape of the level shifter 7 may be different from the present embodiment, and may have a substantially regular shape such as a substantially polygonal shape, a substantially circular shape, or other irregular shapes; the frame may have a substantially solid structure or a substantially frame structure. Accordingly, the number of second wheel assemblies 12 may be set to different numbers depending on the shape of the power conversion platform, and is not limited to the two or three cases described herein. In addition, the relative positions of the level shifter 7 and each wheel assembly 1 may be different from those of the present embodiment, and by setting or adjusting the positions of the first wheel assembly 11 and the second wheel assembly 12 relative to the level shifter 7, the stress of the level shifter 1000 is substantially balanced, and the movement is substantially stable when the posture of the level shifter 7 is adjusted.

As shown in fig. 1, the power conversion apparatus 1000 of the present embodiment further includes two moving frames 71, wherein, along the traveling direction a of the power conversion apparatus 1000, one moving frame 71 is connected to the front side of the power conversion platform 7, and the other moving frame 71 is connected to the rear side of the power conversion platform 7, and each moving frame 71 corresponds to two wheel assemblies 1 respectively. The first wheel assembly 11 and one second wheel assembly 12 are mounted in a moving frame 71 located on the front side of the level shifter 7, and the other two second wheel assemblies 12 are mounted in a moving frame 71 located on the rear side of the level shifter 7, wherein the first wheel assembly 11 and the second wheel assembly 12 are located at least partially in the moving frame 71 and are connected to the level shifter 7 through the moving frame 71.

Further, at least one of the second wheel assemblies 12 is provided with a driving mechanism 6, and the driving mechanism 6 is used for driving the corresponding second wheel assembly 12 to walk so as to drive the power conversion platform 7 to walk; or the driving mechanism 6 is used for driving the corresponding second wheel assembly 12 to move in a small amplitude so as to drive the battery pack 7 to slide relative to the second wheel assembly 12 and rotate by taking the first wheel assembly 11 as a pivot, so that the posture of the battery exchange equipment is adjusted, and the battery pack 7 can be aligned with a battery pack or a battery pack mounting part of the electric vehicle to realize the disassembly and assembly of the battery pack. Preferably, one of the two second wheel assemblies opposite the first wheel assembly 11 is provided with a drive mechanism 6. In one embodiment, the level shifter 7 has a first wheel assembly 11 and three second wheel assemblies 12, and when each wheel assembly is located at each end corner of the level shifter 7, and only a single driving mechanism 6 is disposed in the level shifter 7, the driving mechanism 6 is preferably connected to the second wheel assembly 12 located diagonally to the first wheel assembly 11, that is, the driving mechanism 6 is disposed corresponding to the second wheel assembly 12 furthest from the first wheel assembly 11, which further improves the stress balance of the level shifter 7 and further improves the stability of the posture adjustment of the level shifter 7.

In another embodiment, the number of driving mechanisms 6 is two, and in the traveling direction a, two second wheel assemblies 12 located on opposite sides of the first wheel assembly 11 are each provided with one driving mechanism 6. When the power conversion equipment 1000 needs to walk, the two driving mechanisms 6 can respectively drive the corresponding second wheel assemblies 12 to walk so as to cooperatively drive the level conversion platform 7 to walk; when the power conversion device 1000 needs to adjust the posture, one of the two driving mechanisms 6 can drive the corresponding second wheel assembly 12 to move in a small amplitude so as to drive the level conversion platform 7 to slide relative to the second wheel assembly 12 and rotate with the first wheel assembly 11 as a fulcrum to adjust the posture, or can also adopt two driving mechanisms 6 to reversely drive the two corresponding second wheel assemblies 12 to rotate with opposite torsion to realize the level conversion platform 7. Simultaneously, the two driving mechanisms 6 are adopted to independently drive the two second wheel assemblies 12, so that the performance requirement on the single driving mechanism 6 can be reduced, the single driving mechanism 6 is convenient to be arranged to be smaller in size, and flexible arrangement of parts is convenient.

In other embodiments, the number of driving mechanisms 6 may be plural, specifically, the number of driving mechanisms 6 corresponds to the number of second wheel assemblies 12, that is, each second wheel assembly 12 is provided with one driving mechanism 6, and one or more driving mechanisms 6 are used to implement different functions according to actual requirements.

In this embodiment, the driving mechanism 6 adopts a motor, which has a simple structure, can select a motor of a corresponding model according to power and control requirements, and has mature motor control technology, and is convenient for precisely controlling the power of the motor, so that the relative sliding of the second wheel assembly 12 and the level changing table 7 is precise, and the posture adjustment of the level changing table 7 is precise. In other embodiments, the drive mechanism 6 may be driven in other forms, such as hydraulically or pneumatically. In other embodiments, the drive mechanism 6 may be used to automatically or semi-automatically drive the second wheel assembly 12 and the level shifter 7 to slide relative to each other, but may also be manually driven; for example, upon manual driving, a worker may directly apply a force to the level shifter 7, so that the level shifter 7 slides relative to the second wheel assembly 12 while rotating about the first wheel assembly 11 as a fulcrum.

As shown in fig. 1, 4 and 5, in the present embodiment, the upper and lower sides of the first wheel assembly 11 are respectively rotatably connected to the moving frame 71, and in other embodiments, the first wheel assembly 11 may be directly connected to the level shifter 7, that is, the upper and lower sides of the first wheel assembly 11 are respectively rotatably connected to the level shifter 7, so as to be rotatably connected to the level shifter 7. Further, the first wheel assembly 11 includes a first wheel 111, a first wheel axle 112, and a first mounting seat 113, wherein the first wheel 111 is in powered connection with the first wheel axle 112 via a key, and the first wheel axle 112 is rotatably mounted within the first mounting seat 113 such that the first wheel 111 and the first wheel axle 112 can rotate relative to the first mounting seat 113 to walk. The first mounting seat 113 of the first wheel assembly 11 is located in the moving frame 71 and is rotatably connected to the moving frame 71 by the first transfer assembly 21, so that the level shifter 7 can rotate relative to the first wheel assembly 11 on the plane of the level shifter 7. The first switching assembly 21 includes a first switching fixing portion 211 and a first switching rotating portion 212 which are rotatably connected, the first mounting seat 113 is fixedly connected with the first switching rotating portion 212, the first switching fixing portion 211 is fixedly connected with the corresponding moving frame 71 of the first wheel assembly 11, and the moving frame 71 is connected with the level shifter 7, so that the first mounting seat 113 is rotatably connected with the level shifter 7, that is, the first wheel assembly 11 is rotatably connected with the level shifter 7. In this embodiment, the connection between the first mounting seat 113 and the first transfer rotating portion 212, and the connection between the moving frame 71 and the first transfer fixing portion 211 are all fixed, so that the connection is reliable, and the rotational connection between the first wheel assembly 11 and the level shifter 7 is reliable and easy to control. Meanwhile, the first transfer assembly 21 is rotatably connected with the moving frame 71 by being respectively arranged above and below the first mounting seat 113, so that the middle area of the first mounting seat 113 can be reserved for mounting the first wheel axle 112, and the first transfer assembly 21 and the first wheel axle 112 do not interfere with each other; the upper side and the lower side are both rotationally connected with the level changing table 7, so that the relative rotation stability of the first wheel assembly 11 and the level changing table 7 is improved. In other embodiments, the mounting positions of the first transferring fixing portion 211 and the first transferring rotating portion 212 may be interchanged, that is, the first mounting seat 113 and the first transferring fixing portion 211 are fixedly connected, and the first transferring rotating portion 212 and the corresponding moving frame 71 of the first wheel assembly 11 are fixedly connected.

In this embodiment, a preset gap is formed between the first mounting seat 113 and the moving frame 71, so as to facilitate the installation of the first switching assembly 21, and prevent the movement interference between the first mounting seat 113 and the moving frame 71 when the power conversion platform 7 rotates relatively during the posture adjustment process of the power conversion device 1000.

As shown in fig. 4 and 5, the first transfer rotating portion 212 includes a tapered roller bearing, and the first transfer fixing portion 211 is connected to the tapered roller bearing to perform rotation with the first transfer rotating portion 212. The tapered roller bearing can bear radial force and axial force simultaneously, the loading of the first transfer assembly 21 is multidirectional, and the transfer fixing part and the transfer rotating part can bear radial force and axial force, so that the stability of the rotating connection of the level changing platform 7 and the first mounting part is better, the power transmission is reliable, and the stability of the level changing platform 7 during walking can be improved. In other embodiments, the first adapter assembly 21 may take other rotational configurations capable of simultaneously bearing radial and axial forces, such as double row angular contact ball bearings, etc. Preferably, as shown in fig. 5, the first wheel axle 112 is rotatably mounted in the first mounting seat 113 by two symmetrical tapered roller bearings, and the tapered roller bearings can bear radial force and axial force at the same time, so that the rotational connection between the first mounting seat 113 and the first wheel axle 112, and the rotational connection between the first mounting seat 113 and the movable frame 71 are better in stability and reliable in power transmission. In other embodiments, the first adapter assembly 21 may take other configurations that enable a rotational connection. In other embodiments, the first wheel assembly 11 may be directly disposed under or on the side of the level shifter 7 and directly rotatably connected to the level shifter 7 without providing the moving frame 71.

As shown in fig. 1, 8 and 9, in the present embodiment, the second wheel assembly 12 is slidably connected to the moving frame 71 through the sliding contact assembly 3, and in other embodiments, the second wheel assembly 12 may be directly connected to the level shifter 7 through the sliding contact assembly 3, that is, the second wheel assembly 12 is slidably connected to the level shifter 7, so as to achieve the sliding connection between the second wheel assembly 12 and the level shifter 7. The movable frame 71 is provided at the edge of the level shifter 7, which facilitates the installation and placement of the driving mechanism 6, while also facilitating the connection of each wheel assembly 1 to the level shifter 7 through the movable frame 71. Further, the second wheel assembly 12 includes a second wheel 121, a second wheel axle 122, and a second mount 123, wherein the second wheel 121 is in powered connection with the second wheel axle 122 via a key, and the second wheel axle 122 is rotatably mounted within the second mount 123 such that the second wheel 121 and the second wheel axle 122 can rotate relative to the second mount 123 to walk. The second mounting seat 123 of the second wheel assembly 12 is located within the moving frame 71 and slidably connected to the moving frame 71 by the slip joint assembly 3 such that the level shifter 7 can slide relative to the second wheel assembly 12. The sliding connection assembly 3 comprises a sliding rail 31 and a sliding block 32 which are in sliding connection, the second mounting seat 123 is fixedly connected with the sliding block 32, the sliding rail 31 is connected with a corresponding moving frame 71 of the second wheel assembly 12, and the moving frame 71 is connected with the level shifting platform 7, so that the sliding connection of the second mounting seat 123 and the level shifting platform 7, namely the sliding connection of the second wheel assembly 12 and the level shifting platform 7, is formed. For the second wheel assembly 12 provided with the driving mechanism 6, the driving mechanism 6 and the second wheel shaft 122 are in power connection to drive the second wheel assembly 12 to walk so as to drive the battery changing platform to walk or slide relative to the battery changing platform 7. In other embodiments, the mounting positions of the slide rail 31 and the slider 32 may be interchanged, that is, the slider 32 is connected to the moving frame 71, and the slide rail 31 is connected to the second mounting base 123.

As shown in fig. 1, 8 and 9, in one embodiment, the front and rear sides of the second wheel assembly 12 along the walking direction a are respectively connected with the level changing platform 7 in a sliding manner, specifically, the sliding connection assembly 3 is respectively arranged on the front side and the rear side of the second mounting seat 123 and connected with the moving frame 71 in a sliding manner, so that the sliding connection assemblies 3 on the front and rear sides are stressed uniformly during sliding, and the stability of the relative sliding of the second wheel assembly 12 and the level changing platform 7 is improved; meanwhile, compared with the arrangement of the sliding rail 31 and the sliding block 32 on the upper side and the lower side of the second mounting seat 123, the situation that the sliding stability is not facilitated due to stress eccentricity can be avoided, and the sliding stability of the second wheel assembly 12 and the level changing platform 7 is further improved. Preferably, the sliding components 3 on the front side and the rear side are arranged at the same height, so that the stress of the sliding components 3 on the two sides is basically the same, and the sliding components 3 can slide smoothly.

In another embodiment, the second wheel assembly 12 is further rotatably connected to the level shifter 7, so that when the second wheel assembly 12 is driven to slide relative to the level shifter 7, the level shifter 7 rotates around the first wheel assembly 11, and at the same time, the level shifter 7 also rotates relative to the second wheel assembly 12, so as to increase the rotation range of the level shifter 7, thereby improving the adaptability of the power conversion apparatus 1000 to the parking tilt of the electric vehicle. As shown in fig. 1, 7, 8 and 11, the moving mechanism further includes a connection seat 4, the second wheel assembly 12 is slidably connected with the connection seat 4, and the connection seat 4 is rotatably connected with the moving frame 71 through the second switching assembly 22, so as to realize sliding and rotating connection between the second wheel assembly 12 and the level shifter 7. Specifically, the second mounting seat 123 is fixedly connected with the sliding block 32, and the sliding rail 31 is fixedly connected with the connecting seat 4, so that the sliding connection of the second wheel assembly 12 and the connecting seat 4 is realized; the second adapting assembly 22 includes a second adapting fixing portion 221 and a second adapting rotating portion 222 that are rotatably connected, the connecting seat 4 is fixedly connected with the second adapting rotating portion 222, the second adapting rotating portion 222 is fixedly connected with the moving frame 71 corresponding to the second wheel assembly 12, and the rotational connection between the connecting seat 4 and the moving frame 71 is realized. The connecting seat 4 is arranged, so that the sliding connection assembly 3 and the second switching assembly 22 are convenient to install, and the functions of sliding and rotating relatively between the second wheel assembly 12 and the level changing platform 7 are realized. In other embodiments, the second wheel assembly 12 may be directly disposed under or on the side of the level shifter 7 without the moving frame 71, and slidably and rotatably connected to the level shifter 7 through the connection base 4. In this embodiment, gaps are formed between the second mounting base 123 and the connecting base 4 and between the connecting base 4 and the moving frame 71, so that the second adapting assembly 22 and the sliding assembly 3 can be conveniently mounted, and the movement interference among the second mounting base 123, the connecting base 4 and the moving frame 71 can be avoided. In this embodiment, the second adapting assembly 22 and the first adapting assembly 21 may have the same structure, and will not be described herein.

As shown in fig. 7, 8 and 11, in the present embodiment, the upper and lower sides of the second wheel assembly 12 are respectively rotatably connected to the level shifter 7, and the front and rear sides along the traveling direction a are slidably connected to the level shifter 7, specifically, by respectively arranging the second adapter assemblies 22 above and below the second mounting seat 123 to be rotatably connected to the connection seat 4, the two sliding assemblies 3 on the front and rear sides of the connection seat 4 are symmetrically arranged with respect to the second wheel axle 122. The arrangement is such that the middle area of the second mounting base 123 is reserved for mounting the second wheel axle 122, and the second adapter assembly 22 and the second wheel axle 122 do not interfere with each other, so that the interference of the rotational connection and the sliding connection is avoided, and meanwhile, the structural arrangement of the rotational connection and the sliding connection is facilitated. Further, the two sliding connection assemblies 3 are arranged at the same height, so that the bearing of the two sliding connection assemblies 3 is balanced, and further, the stress is balanced when the level changing platform 7 and the second wheel assembly 12 slide relatively, and the rotation is stable; the rotating shafts of the two second switching components 22 on the upper side and the lower side of the connecting seat 4 are on the same axis, so that the stress is balanced when the level changing platform 7 rotates relative to the second wheel component 12, and the rotation is stable.

In this embodiment, each second wheel assembly 12 is both rotatably and slidably coupled to the level shifter 7. The second wheel assembly 12 is rotationally connected with the level changing platform 7 on the basis of being slidingly connected with the level changing platform 7, so that when the second wheel assembly 12 is driven to slide relative to the level changing platform 7, the level changing platform 7 rotates around the first wheel assembly 11, and simultaneously rotates relative to the second wheel assembly 12, so that the rotation range of the level changing platform 7 is enlarged, the rotation stability of the level changing platform 7 is improved, the rotation resistance of the level changing platform 7 is reduced, and the adaptive capacity of the level changing equipment 1000 relative to the parking inclination of the electric vehicle is improved.

As shown in fig. 8, 9 and 10, in order to improve the stability of the relative sliding motion of the level shifter 7 and the second wheel assembly 12, each sliding contact assembly 3 includes one sliding rail 31 and two sliding blocks 32 cooperating with the sliding rail 31, and the two sliding blocks 32 are arranged at intervals along the sliding direction, so that the structural stress of the sliding contact assembly 3 is balanced by increasing the contact area with the sliding rail 31, and the sliding motion is smoother. In other embodiments, the number of the sliding blocks 32 or the sliding rails 31 can be adjusted according to actual requirements, which is not limited to the solution provided in the present embodiment.

In another preferred embodiment, two second wheel assemblies 12 located on opposite sides of the first wheel assembly 11 are each provided with a locking mechanism having an unlocked position and a locked position for locking or unlocking the relative sliding state between the level shifter 7 and the second wheel assemblies 12, respectively. In the unlocked position, the second wheel assembly 12 can slide relative to the power changing platform 7, and in the locked position, the relative sliding of the second wheel assembly 12 and the power changing platform 7 is locked. When the level changing platform 7 and the second wheel assembly 12 do not need to slide relatively, for example, when the power changing device 1000 walks, the phenomenon that the whole power changing device 1000 shakes to influence the walking stability caused by the relative sliding of the second wheel assembly 12 and the level changing platform 7 is avoided, and the phenomenon that the power changing device 1000 rotates relative to the first wheel assembly 11 and the second wheel assembly 12 in the walking process is avoided. When the battery pack is required to be removed and installed by the battery changer 1000 traveling below the electric vehicle, the second wheel assembly 12 and the battery changer 7 are relatively moved by unlocking, so that the battery changer 1000 is rotated to be aligned with the electric vehicle, and the battery changer 7 can be removed and installed. The arrangement of the locking mechanism can improve the controllability of the battery exchange device 1000.

In one embodiment, the locking mechanism comprises a protruding member which can be switched between an initial position and a preset position, wherein the protruding member corresponds to an unlocking position when being positioned at the initial position, and corresponds to a locking position when being positioned at the preset position. Specifically, the setting position of the locking mechanism corresponds to the sliding rail 31 of the sliding connection assembly 3, and is fixed on the second mounting seat 123 or the connecting seat 4, and the extending piece extends to abut against the surface of the sliding rail 31 and is located at a preset position, so that the sliding rail 31 and the sliding block 32 cannot slide relatively, and further the relative sliding of the second wheel assembly 12 and the level shifting platform 7 is locked.

When the extension member is pressed against the slide rail 31 to press the slide rail 31 against the slider 32 to limit the relative sliding, preferably, the extension member is directed to a side surface of the slide rail 31, and the end shape of the extension member is matched with the side surface shape of the slide rail 31 to improve the friction force between the extension member and the slide rail 31, thereby improving the locking effect.

In another embodiment, the sliding rail 31 is provided with a locking hole, and the extension piece of the locking mechanism can extend out of and be inserted into the locking hole of the sliding rail 31 and be located at a preset position, so that the sliding rail 31 and the sliding block 32 cannot slide relatively, and further the relative sliding of the second wheel assembly 12 and the level shifter 7 is locked. The protruding piece is inserted into the locking hole of the sliding rail 31 to limit the relative sliding of the sliding rail 31 and the sliding block 32, so that the latch locking is formed, and the reliability of the latch locking sliding is better than that of the abutting locking.

Preferably, the two extending members are disposed on the upper and lower sides of the sliding rail 31, whether the extending members are abutted against the sliding rail 31 or the extending members are inserted into the sliding rail 31, the number of the extending members is at least two, and two extending members, one corresponding to the upper side of the sliding rail 31 and the other corresponding to the lower side of the sliding rail 31, enable the two extending members to clamp the sliding rail 31 from the upper and lower sides, and have good effect of limiting the sliding of the sliding rail 31 and the sliding block 32.

In other embodiments, the structure of the locking mechanism may be different from that of the present embodiment, for example, a coil and a magnetic structure may be used, and locking and unlocking are achieved by switching on and off the coil. Other locking mechanisms with unlocking and locking functions in the prior art can be adopted, and the appearance, the size and the like of the locking mechanism can be adaptively adjusted according to the structural arrangement of the battery exchange equipment 1000 when the locking mechanism is applied to the battery exchange equipment 1000.

Further, since the power exchanging device walks along the track 2000, the corresponding first wheel 111 and second wheel 121 also need to walk along the track 2000. In one embodiment, the first wheel 111, the second wheel 121 may be configured to travel along the track 2000 by the first wheel 111, the second wheel 121 and the track 2000 being form-fit, for example, the first wheel 111 and the second wheel 121 may each be configured as sheaves that snap-fit onto the track 2000 such that the first wheel 111 and the second wheel 121 may remain traveling on the track at all times. The first wheel 111 and the second wheel 121 are provided as sheaves to travel in cooperation with the rail 2000, so that the battery exchanging apparatus 1000 has a simple overall structure and is convenient to manufacture.

It is conceivable that the track 2000 may be configured as a groove, and the first wheel 111 and the second wheel 121 may be engaged with the grooves of the track 2000 to travel; or other form-fitting manners capable of walking are adopted to realize the walking of the first wheel 111 and the second wheel 121 along the track 2000.

In another embodiment, the power changing apparatus 1000 as shown in fig. 1-3 further includes wheel holders 5, the number of wheel holders 5 corresponding to the total number of first wheel assemblies 11 and second wheel assemblies 12, each wheel holder 5 being connected to either the first wheel assembly 11 or the second wheel assembly 12, respectively. The wheel holder 5 of the present embodiment is sleeved on the rail such that the first wheel 111 of the first wheel assembly 11, the second wheel 121 of the second wheel assembly 12 are held on the rail 2000 to walk along the rail 2000. This configuration reduces the demands on the structure of the wheels and the track 2000, and at the same time, can avoid possible jamming in the case where both the first wheel 111 and the second wheel 121 are sheaves, and the first wheel 111 and the second wheel 121 can travel along the track 2000 more smoothly with the wheel holder 5 with respect to the sheaves.

Here, taking the first wheel 111 as an example, the first wheel assembly 11 is held on the rail 2000 by the wheel holder 5; the second wheel assembly 12 is similar and will not be described again.

As shown in fig. 2, 3 and 4, the wheel holder 5 includes a limiting portion 51 and a mounting portion, the mounting portion is disposed on the rail 2000 along the width direction of the rail 2000, a plurality of limiting portions 51 are disposed on both sides of the rail 2000 in a straddling manner and are mounted on the mounting portion, the limiting portions 51 in this embodiment are limiting wheels, the rolling surface of the limiting wheels is attached to the rail 200, and the limiting wheels rotatably roll along the side wall of the rail 2000, so that the constraint of the wheel holder 5 on the first wheel 111 is more stable and reliable, and the running stability of the power conversion equipment 1000 and the rotation stability of the power conversion platform 7 are increased. Meanwhile, through the structural arrangement, the first wheel 111 and the second wheel 121 can be reliably limited to the track 2000, so that the power exchange device 1000 can travel along a set direction, deviation between the electric vehicle and the power exchange device 1000 can be conveniently and well judged in the later period, and further alignment with the electric vehicle is realized through rotation of the level exchange platform 7. In addition, the spacing portion 51 rolls and sets up, both can avoid the card to die, can also reduce simultaneously the friction to track 2000, improves the life of spacing portion 51 and track 2000, and spacing portion 51 laminating track 2000 lateral wall, reducible or avoid wheel holder 5 to rock at track 2000 width direction, further improves the stationarity that trades the walking of electronic equipment 1000.

Preferably, as shown in fig. 2 and 3, the mounting portion includes a mounting plate 521 and an extension plate 522, the mounting plate 521 is located above the rail 2000, the extension plate 522 extends downward from two sides of the mounting plate 521 to two sides of the rail 2000, and the extension plate 522 is used for connecting the limiting portion 51, so that the limiting portion 51 is located at two sides of the rail 2000, so as to implement limiting by matching the limiting portion 51 with two sides of the rail 2000. In this embodiment, the mounting plate 521 and the extension plate 522 are integrally formed, and in other embodiments, may be provided separately.

Preferably, as shown in fig. 2 and 3, the mounting plate 521 has a wheel accommodating area 523, and the wheel accommodating area 523 may be located in a middle area of the mounting plate 521, that is, the mounting plate 521 is hollow, and the middle forms a wheel accommodating area for accommodating the first wheel 111 or the second wheel 121, so that the first wheel 111 or the second wheel 121 can be attached to the surface of the rail 2000 to walk, thereby further improving the walking stability of the power exchange apparatus 1000 and the rotation stability of the level shifter 7. Meanwhile, the surrounding structure of the mounting plate 521 may protect the first wheel 111 or the second wheel 121 located at the wheel accommodating area 523. In other embodiments, an opening may be provided on one side of the mounting plate 521 to form the wheel receiving area 523.

Preferably, as shown in fig. 2, 3 and 4, the wheel holder 5 further includes a side mounting plate 524, the side mounting plate 524 having a body extending in a vertical direction, one end of the body being fixedly connected to the first mounting seat 113, and the other end being fixedly connected to the mounting plate 521, so that the wheel holder 5 is connected to the first wheel assembly 11. Further, the body is located between the first wheel 111 and the moving frame 71 to protect the first wheel and the second wheel, especially when the second wheel slides against the battery exchange platform in the unlocked state of the locking mechanism, so as to avoid the collision between the second wheel and the moving frame.

In other embodiments, the structure of the wheel holder 5 may be different from the present embodiment, for example, the frames are sleeved on both sides of the first wheel 111, and the frames on both sides are located on both sides in the width direction of the rail 2000 and close to both sides of the rail 2000, so that the first wheel 111 is held on the rail 2000. In other embodiments, any cage structure that enables the first wheel 111 and the second wheel 121 to travel on the track 2000 without affecting the posture adjustment of the level shifter 7 may be used.

In summary, herein, when the electric vehicle is parked at the preset position to perform the power conversion, there are some deviations in the parking of the electric vehicle, so that the working process of the power conversion device in the embodiment is performed under the condition that the power conversion device has a certain angle deviation with the battery pack or the battery pack mounting portion of the electric vehicle. First, the locking mechanism is set to be in the locked position such that the position between the power exchanging platform and the second wheel assembly is defined, and cannot slide. The driving mechanism drives the corresponding second wheel assembly to enable the second wheel to roll along the track so as to drive the level changing platform to walk below the electric vehicle along the track; at this time, the locking mechanism is adjusted to an unlocking state so that the battery changing platform and the second wheel assembly can slide relatively, based on the offset of the electric vehicle, the driving mechanism drives the corresponding second wheel assembly to move for a preset distance again, and as the second wheel of the second wheel assembly is limited on the track, the second wheel keeps unchanged in the running direction in the moving process of the second wheel, so that sliding starts to be generated between the battery changing platform and the second wheel assembly, the battery changing platform starts to twist in the plane where the battery changing platform is located, and then the battery changing platform rotates by taking the first wheel assembly as a fulcrum so as to realize the alignment with a battery pack or a battery pack mounting part of the electric vehicle, and finally the battery is detached from the electric vehicle by the battery changing platform. The operation of the battery-changing device is similar when the battery is installed, and will not be described in detail here.

In another embodiment, the first mounting seat 113 of the first wheel assembly 11 is rotatably connected to the moving frame 71 of the level shifter 7, and the second wheel assembly is rotatably connected to the moving frame 71 of the level shifter 7 through the connecting seat 4, and the specific structure of the rotational connection can be referred to in this embodiment.

As shown in fig. 12 and 13, in another embodiment, the moving mechanism includes a first stop assembly, which is disposed corresponding to the first wheel assembly 11, and the first stop assembly includes a first cylinder 811 and a first wedge 821, the first cylinder 811 is mounted on the moving frame 71 of the level shifter 7, and the first cylinder 811 is used to drive the first wedge 821 to extend or retract. The first mounting seat 113 of the first wheel assembly 11 has a sub-plate 1131, and the sub-plate 1131 has a first gap with the moving frame 71 of the level shifter 7 on both front and rear sides in the traveling direction, i.e., both front and rear sides in the extending direction of the rail 2000, and the first cylinder 811 drives the first wedge 821 to be inserted into the first gap between the sub-plate 1131 and the moving frame 71 to restrict relative rotation between the moving frame 71 and the first mounting seat 113, thereby restricting relative rotation between the first wheel assembly 11 and the level shifter 7. The first cylinder 811 may also drive the first wedge 821 to retract to the original position to release the first gap between the moving frame 71 and the sub-plate 1131.

The first mounting seat 113 is provided with a secondary plate 1131 to reduce a first gap between the first mounting seat 113 and the moving frame 71, so as to facilitate the insertion of the first wedge 821; in other embodiments, the sub-panel 1131 may not be provided; in other embodiments, the first wedge 821 may be sized to limit relative rotation between the first mount 113 and the moving frame 71 by adjusting the first wedge 821, the moving frame 71, or the first mount 113 such that a first gap between the first mount 113 and the moving frame 71 facilitates insertion of the first wedge 821.

In another embodiment, as shown in fig. 14 and 15, the moving mechanism includes a second stop assembly, which is disposed corresponding to the second wheel assembly 12, and the second stop assembly includes a second cylinder 812 and a second wedge 822, the second cylinder 812 is mounted on the moving frame 71 of the level shifter 7, and the second cylinder 812 is used to drive the second wedge 822 to extend or retract. The connection seat 4 corresponding to the second wheel assembly 12 has a second gap with the moving frame 71 of the level shifter 7 on both sides in the traveling direction, i.e., along the extending direction of the rail 2000. The second cylinder 812 drives the second wedge 822 to be inserted into the second gap between the connection seat 4 and the moving frame 71 to restrict the relative rotation between the moving frame 71 and the connection seat 4, thereby restricting the relative rotation between the second wheel assembly 12 and the level shifter 7. The second cylinder 812 may also drive the second wedge 822 to retract to the original position to release the second gap between the moving frame 71 and the connection block 4.

The first stop component is arranged to lock or unlock the relative rotation of the level changing platform 7 and the first wheel component 11, the second stop component is arranged to lock or unlock the relative rotation of the level changing platform 7 and the second wheel component 12, so that the battery changing device 1000 can walk conveniently or perform other actions except for adjusting the posture of the level changing platform 7, the relative rotation of the first wheel component 11 and the second wheel component 12 and the battery changing platform is locked, the relative rotation of the battery changing platform 7, the first wheel component 11 and the second wheel component 12 is avoided, the shaking is generated, the stability and the reliability of the structure are improved, and when the posture of the battery changing device 1000 needs to be adjusted, the battery changing device 1000 can be rotated relatively through the unlocking of the first stop component and the second stop component, and the battery changing device 1000 can be rotated relatively so as to be aligned with a battery pack or a battery pack mounting part, and the battery can be conveniently dismounted. In other embodiments, the first stop assembly may or may not be provided corresponding to the first wheel assembly 11; in other embodiments, a second stop assembly may or may not be provided corresponding to the second wheel assembly 12.

The first stop assembly employs a first cylinder 811 to drive a first wedge 821, which is simple, reliable, and easy to control, and in other embodiments, may be motor driven, manually driven, or otherwise driven. The first wedge 821 is inserted into the first gap to limit the relative rotation of the first wheel assembly 11 and the level shifter 7, which is simple and reliable, and in other embodiments, a latch mechanism, an electromagnetic lock, or other limiting mechanism may be used to limit the relative rotation. The same applies to the corresponding second stop assembly of the second wheel assembly 12, and will not be described again

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications are intended to be within the scope of the utility model.

Claims

1. The utility model provides a trade electric equipment, but follow preset track walking, its characterized in that includes:

2. The power exchanging apparatus according to claim 1, wherein the upper and lower sides of the first wheel assembly are rotatably connected to the level changing table, respectively, and the front and rear sides of the second wheel assembly in the traveling direction are slidably connected to the level changing table, respectively.

3. The power exchanging apparatus of claim 2 wherein said upper and lower sides of said second wheel assembly are also rotatably coupled to said power exchanging station, respectively.

4. A power changing apparatus according to claim 1, wherein at least two of said second wheel assemblies are located at an end opposite to said first wheel assembly in said traveling direction, and at least one of said second wheel assemblies opposite to said first wheel assembly is provided with a drive mechanism.

5. The power conversion apparatus according to claim 4, wherein the first wheel assembly and the second wheel assembly are each disposed at an end angle of the power conversion platform and each correspond to a different one of the end angles.

6. The power conversion apparatus according to claim 5, wherein the power conversion platform has a rectangular structure, one end angle of the power conversion platform is provided with the first wheel assembly, the remaining three end angles are provided with the second wheel assembly, and at least the second wheel assembly located at the opposite angle of the first wheel assembly is provided with the driving mechanism.

7. The power exchanging apparatus according to claim 4, wherein the number of the driving mechanisms is two, and two of the second wheel assemblies opposite to the first wheel assemblies are provided in one-to-one correspondence with the two driving mechanisms.

8. The power conversion apparatus according to claim 4, wherein both of the second wheel assemblies opposite to the first wheel assembly are provided with locking mechanisms having a locked position and an unlocked position for locking or unlocking a relative sliding state between the power conversion platform and the second wheel assembly, respectively.

9. The power conversion equipment according to any one of claims 1-8, wherein the first wheel assembly comprises a first wheel, a first mounting seat and a first wheel axle, the first wheel axle is connected with the first wheel, the first wheel axle is mounted in the first mounting seat and can rotate relative to the first mounting seat to drive the power conversion equipment to walk, and the upper part and the lower part of the first mounting seat are rotationally connected with the power conversion platform; and/or the number of the groups of groups,

10. The power conversion apparatus according to claim 9, wherein the upper and lower sides of the first mount are each rotatably connected to the power conversion stage by a first transfer assembly, the first transfer assembly including a first transfer fixing portion and a first transfer rotating portion, the first transfer fixing portion and the first transfer rotating portion being provided in a structure capable of receiving a radial force and an axial force and being rotatably connected to each other, one of the first mount and the power conversion stage being fixedly connected to the first transfer fixing portion, the other being fixedly connected to the first transfer rotating portion, so that the power conversion stage is rotatable with respect to the first wheel assembly.

11. The power conversion equipment of claim 9, wherein the front side and the rear side of the second mounting seat are respectively connected with the power conversion platform through sliding connection assemblies, the sliding connection assemblies comprise sliding rails and sliding blocks which are matched with each other, one of the second mounting seat and the power conversion platform is connected with the sliding rails, and the other is connected with the sliding blocks.

12. The battery exchange apparatus as set forth in claim 11, wherein the moving mechanism further comprises a connection base, the front side and the rear side of the second installation base are connected to the connection base through the sliding connection assembly, respectively, and the upper and lower sides of the connection base are connected to the battery exchange table through the second switching assembly, respectively.

13. The power conversion apparatus of claim 12, wherein,

the moving mechanism further comprises a first stop component, wherein the first stop component is arranged between the power exchange platform and the first wheel component and is used for locking or unlocking the relative rotation state of the power exchange platform and the first wheel component;

and/or, the moving mechanism further comprises a second stop component, and the second stop component is arranged between the power conversion platform and the second wheel component and is used for locking or unlocking the relative rotation state of the power conversion platform and the second wheel component.

14. The battery exchange device of claim 13 wherein the first mount has a first gap between the battery exchange platform and the front and rear sides of the first mount in the direction of travel, the first stop assembly includes a first retractable wedge that extends into the first gap from a home position when the first stop assembly is in a locked state to limit relative rotation of the first mount and the battery exchange platform, and the first wedge retracts into the home position to release the first gap when the first stop assembly is in an unlocked state.

15. The battery exchange device of claim 13 wherein said connector base has a second gap between said battery exchange platform and said front and rear sides in said travel direction, said second stop assembly including a retractable second wedge extending from an original position into said second gap when said second stop assembly is in a locked condition to limit relative rotation of said connector base and said battery exchange platform, said second wedge retracting to said original position releasing said second gap when said second stop assembly is in an unlocked condition.

16. The power conversion apparatus according to claim 12, wherein the second wheel assembly is provided with a locking mechanism for locking or unlocking a relative sliding state between the slide rail and the slider.

17. The power conversion apparatus according to claim 16, wherein the locking mechanism includes a protrusion switchable between an initial position and a preset position, the slide rail and the slider being relatively slidable when the protrusion is in the initial position; when the extending piece is positioned at a preset position, the extending piece abuts against the sliding rail or is inserted into the sliding rail to limit the relative sliding of the sliding rail and the sliding block.

18. The power exchanging apparatus of claim 17, wherein the extension and contraction direction of the extension member is directed to a side surface of the slide rail, and the side surface shape of the slide rail is matched with the end shape of the extension member or the slide rail is provided with a locking hole into which the extension member is inserted; and/or the number of the extending parts is two, and the two extending parts are respectively arranged on the upper side surface and the lower side surface of the sliding rail.

19. The power conversion apparatus according to claim 1, wherein the first wheel of the first wheel assembly and the second wheel of the second wheel assembly are sheaves, the sheaves being engageable with the track such that the first wheel and the second wheel both travel along the track; or, the power exchanging device further comprises a wheel holder sleeved on the track, and each of the first wheel assembly and the second wheel assembly is connected with the wheel holder, so that the first wheel of the first wheel assembly and the second wheel of the second wheel assembly are limited on the track and walk along the track.

20. The power exchanging apparatus of claim 19, wherein the wheel holder comprises a plurality of stopper portions provided on both sides of the rail and a mounting portion for mounting the stopper portions, the mounting portion being provided straddling the rail in a width direction of the rail and being connected to the plurality of stopper portions on both sides of the rail, the stopper portions being rotatably provided so as to be capable of rolling against a side wall of the rail during traveling of the power exchanging apparatus along the rail.

21. A power conversion apparatus according to claim 20 wherein the mounting portion includes a mounting plate located above the track and connected to the first wheel assembly or the second wheel assembly and extension plates extending downwardly from either side of the mounting plate to either side of the track, the extension plates being adapted to connect the spacing portion, the mounting plate having a wheel receiving area for receiving the first wheel or the second wheel such that the first wheel and the second wheel engage the upper surface of the track and travel on the track.

22. A power exchange station for a power exchange vehicle to drive in and exchange a battery pack, characterised in that it comprises a track and a power exchange device according to any one of claims 1 to 21, the power exchange device being walkable along the track and a power exchange platform of the power exchange device being rotatable in its plane to be aligned with the battery pack or battery pack mounting.