CN218558544U

CN218558544U - Quick change assembly and battery replacement vehicle comprising same

Info

Publication number: CN218558544U
Application number: CN202222802914.2U
Authority: CN
Inventors: 张建平; 于新瑞; 赵滨; 祝明
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-10-24
Publication date: 2023-03-03
Anticipated expiration: 2032-10-24
Also published as: CN116001549A; CN218558554U; CN116001547A; CN116039355A; CN218558545U; CN116118451A; CN116118467A; CN218558555U; CN219007568U; CN218558553U; CN116160835A; CN218536331U; CN116118465A; CN116118458A; CN218558549U; CN218577490U; CN116118462A; CN218536329U; CN116118463A; CN116409131A

Abstract

The utility model provides a quick change assembly and contain its trade electric vehicle. The quick change assembly comprises a plurality of battery packs, the battery packs are arranged along the length direction of the battery replacement vehicle, and each battery pack is independently locked at the bottom of a vehicle beam of the battery replacement vehicle from bottom to top in the vertical direction in a bolt locking mode. The quick-change assembly can realize that the battery pack is arranged on the vehicle beam below the battery-changing vehicle through the quick-change bracket, so that the battery pack can be disassembled and assembled from the bottom of the battery-changing vehicle, the battery-changing cost is low, the battery changing is convenient, and the locking efficiency of the battery pack is improved; thereby trade the focus of electric vehicle and keep stable difficult emergence slope, difficult production unbalance loading does not cause the unbalance loading of vehicle in addition under the condition of trading electric vehicle only connecting partial battery package, and the using-way is more nimble, and the suitability is better. Each battery pack is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the disassembling and assembling flexibility is higher. In addition, the bolt locking mode is simple to operate, and the locking reliability is high.

Description

Quick change assembly and battery replacing vehicle comprising same

This patent application claims priority to chinese patent application No. 2022108370942 filed on 7/15/2022.

Technical Field

The utility model relates to a trade the electric field, in particular to quick change assembly and contain its trade electric vehicle.

Background

The battery pack mounting mode of the existing battery replacement vehicle is generally divided into fixed mounting and replaceable mounting, wherein the battery pack fixedly mounted is generally fixed on the vehicle; the replaceable safety rotating battery pack is generally movably mounted, can be taken down at any time for replacement or charging, and is mounted on the vehicle body after replacement or charging is finished.

Present electronic heavy truck or light truck vehicle, the battery package is installed in the top of automobile body, need use the hoist to trade the electricity from vehicle top dismouting battery package when trading the electricity in order to realize trading the electricity, and hoist cost is with high costs and occupation space is big, and increase building site land used cost and equipment cost to, battery package weight is big, and the hoist and mount in-process takes place to rock easily, influences hoist and mount reliability, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a quick change assembly and contain its trade electric vehicle in order to overcome the defect that when trading the electricity among the prior art with high costs, the reliability is poor and possess the potential safety hazard.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the quick-change assembly comprises a plurality of battery packs, the battery packs are arranged along the length direction of a battery-changing vehicle, and each battery pack is independently locked at the bottom of a vehicle beam of the battery-changing vehicle from bottom to top in the vertical direction in a bolt locking mode.

In the scheme, the quick-change assembly can realize that the battery pack is arranged on the vehicle beam below the battery-replacing vehicle through the quick-change bracket, so that the battery pack can be disassembled and assembled from the bottom of the battery-replacing vehicle, the battery-replacing cost is low, the battery-replacing is convenient, the locking efficiency of the battery pack is improved, and the problems of high battery-replacing cost and inconvenience caused by the fact that the battery pack is placed above the vehicle body by an electric heavy truck or a light truck vehicle in the prior art can be effectively solved; the battery pack is not easy to generate unbalance loading, the unbalance loading of the vehicle can not be caused under the condition that the battery replacing vehicle is only connected with a part of battery packs, the use mode is more flexible, and the applicability is better. A plurality of battery packages that arrange along the length direction of trading electric vehicle make the volume and the weight of every battery package less when guaranteeing to trade the required electric quantity of electric vehicle, and easy to assemble has also reduced the requirement to the equipment of trading. The battery package in this application adopts X to (vehicle length direction) branch case, compares in whole package and Y to branch case (vehicle width direction), thereby X trades the focus of electric vehicle at the traded electric in-process to the branch case and keeps stable difficult the emergence slope, is difficult for producing the unbalance loading, can not cause the unbalance loading of vehicle under the condition of only connecting part battery package in addition, and the using-way is more nimble, and the suitability is better. Each battery pack is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the disassembling and assembling flexibility is higher. In addition, the bolt locking mode is simple to operate, and the locking reliability is high.

Preferably, the bolt locking mode structure comprises a locking piece and a locking mechanism, the locking piece comprises a bolt, and the locking mechanism comprises a nut;

the bolt and the nut are detachably connected so as to independently lock the battery pack on the vehicle beam; or the quick-change assembly further comprises a quick-change support arranged on a beam of the battery-changing vehicle, and the bolt and the nut are detachably connected to independently lock the battery pack on the quick-change support of the battery-changing vehicle.

In the scheme, the battery pack can be independently locked on a vehicle beam or a quick-change bracket of the battery-changing vehicle according to actual design requirements, and the arrangement is flexible.

Preferably, the bolt is arranged on the battery pack, and the nut is arranged on the quick-change bracket or the vehicle beam; alternatively, the first and second liquid crystal display panels may be,

the nut is arranged on the battery pack, and the bolt is arranged on the quick-change bracket or the vehicle beam.

In this scheme, can be according to actual design needs, set up the bolt on battery package or quick change support or car roof beam, the nut is also similar, sets up comparatively nimble.

Preferably, the bolt or the nut is arranged in the middle of the battery pack, and the bolt or the nut penetrates through the battery pack.

In this scheme, bolt or nut setting are in the intermediate position of battery package for install the battery package locking point or the locking position on quick change support or the car roof beam and be located the intermediate position of battery package, more be favorable to the stability after the battery package installation. In addition, the bolt or the nut penetrates through the battery pack, so that the bolt or the nut is conveniently matched with an external unlocking device, and the battery pack is conveniently unlocked.

Preferably, the bolt or nut is floatingly coupled to the battery pack.

In this scheme, the connection of floating can reduce and trade the electric vehicle and receive to turn to the distortion or the moment of torsion or the vibrations transmission to quick change support or car roof beam when jolting, and then makes quick change support or car roof beam receive the influence of moment of torsion or vibrations to reduce.

Preferably, the bolt or the nut is connected to the quick-change bracket or the vehicle beam in a floating mode.

Preferably, the locking mechanism further comprises a fixed base, and the nut is connected to the fixed base in a floating mode.

Preferably, the bolt includes a threaded portion provided with a thread and used to be threadedly coupled with the nut, and a coupling portion.

In this scheme, the bolt is through screw portion and nut threaded connection, is favorable to guaranteeing the fastness of connecting.

Preferably, the locking member further comprises a lock housing, and the bolt is disposed in the lock housing and can vertically lift or rotate relative to the lock housing.

Preferably, the structure of the bolt locking mode further comprises a rotation-preventing and retaining structure, and the rotation-preventing and retaining structure is connected to the locking piece and/or the locking mechanism to prevent relative rotation between the locking piece and the locking mechanism.

In this scheme, prevent changeing stopping structure can prevent that the relative nut of bolt is rotatory, guarantees bolted connection's fastness, avoids the unexpected slippage of bolt in the nut, and then has guaranteed the battery package and has traded the stability that electric vehicle is connected.

Preferably, the anti-rotation and anti-backing structure comprises a first anti-rotation part and a second anti-rotation part, the first anti-rotation part is sleeved on the outer peripheral side of the second anti-rotation part, and the first anti-rotation part is connected to the battery pack or the battery replacement vehicle; the second anti-rotation part is connected to the connecting part of the bolt and used for switching between a first position and a second position under the action of external force;

when the second anti-rotation part is located at the first position, the outer peripheral wall of the second anti-rotation part is clamped with the inner peripheral wall of the first anti-rotation part;

when the second anti-rotation part is located at the second position, the second anti-rotation part is separated from the first anti-rotation part along the axial direction of the bolt.

In the scheme, the first anti-rotation part plays a role in connection and positioning; an acting force along the axial direction of the bolt is applied to the second anti-rotation part through an external driving mechanism, so that the second anti-rotation part moves from the first position to the second position, the second anti-rotation part located at the second position can rotate freely, the bolt connected with the second anti-rotation part is driven to rotate, the bolt and the nut are locked or unlocked, after locking or unlocking operation is completed, the second anti-rotation part is driven to the first position from the second position, at the moment, the second anti-rotation part is clamped with the first anti-rotation part, the position of the second anti-rotation part is fixed, and the bolt cannot rotate any more.

Preferably, the first rotation-preventing part comprises an inner gear ring, the second rotation-preventing part comprises an outer gear ring, and the inner gear ring is sleeved on the outer peripheral side of the outer gear ring; when the second rotation preventing part is located at the first position, the gear teeth of the inner gear ring are clamped with the gear teeth of the outer gear ring.

In this scheme, the joint of first preventing changeing and second preventing changeing is realized through the meshing of ring gear and outer ring gear, and first preventing changeing is through the rotation of restriction second preventing changeing and then the rotation of restriction bolt.

Preferably, the first rotation preventing member further includes an inner flange extending from an inner circumferential wall of the ring gear to a radially inner side of the ring gear; when the second anti-rotation part is located at the first position, one end, far away from the bolt, of the second anti-rotation part is abutted to the inner flange.

In this scheme, the setting of interior flange can prevent changeing the removal of piece in first commentaries on classics piece spacing to the second, avoids the second to prevent changeing the piece and keeps away from the one end slippage of nut from first commentaries on classics piece.

Preferably, the connecting portion of the bolt extends into the second anti-rotation member, one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with a recessed portion, the other one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with a protruding portion, and the recessed portion is matched with the protruding portion.

In this scheme, through erecting the cooperation realization bolt of groove and bellying and preventing changeing with the second and being connected to can restrict the bolt and prevent changeing for the second rotation, guarantee the stability of connecting.

Preferably, the locking piece further comprises a lock shell, and the bolt is arranged in the lock shell and can vertically lift or rotate relative to the lock shell;

the lock piece further comprises a resetting piece, and the first anti-rotation piece, the second anti-rotation piece and the resetting piece are all arranged in the lock shell;

the two ends of the reset piece are respectively abutted to the lock shell and the second anti-rotation piece, and the reset piece is used for applying acting force to the second anti-rotation piece to enable the second anti-rotation piece to be reset from the second position to the first position.

In this scheme, when the second prevents that the piece moves to the direction that is close to the nut along the bolt axial, the piece that resets is compressed and produces the compression displacement, and after preventing that the piece that resets accomplishes the locking or the unblock of bolt and nut through the second, under the restoring force effect that resets, the second prevents that the piece resets to the primary importance and realizes the joint with first preventing that the piece rotates, and then no longer rotates, realizes preventing to change the function to the bolt.

Preferably, at least part of the battery pack is located below the vehicle beam.

In this scheme, at least part of battery package is located the below of car roof beam, can also utilize the space between the car roof beam both sides or can utilize the space between the car roof beam both sides and girder both sides, has improved space utilization, is favorable to reducing the space that the quick change assembly occupy.

Preferably, the upper surface of the battery pack is located below the vehicle beam;

or the upper part of the battery pack is positioned between the vehicle beams and/or at least one side of the battery replacing vehicle.

In this scheme, the upper surface of battery package is located the below of car roof beam, and the surface structure of battery package is level and smooth, the manufacturing of the battery package of being convenient for. The upper portion of battery package is located between the car roof beam, one side or one kind in both sides, thereby the space of make full use of between the car roof beam and the side promotes the whole volume of battery package thereby promotes the power supply ability of battery package, or under the same power supply ability, can reduce the vertical height of battery package, increases the vertical distance between the bottom of battery package and the ground, reserves sufficient high space for trading battery package operation of electrical equipment.

Preferably, the quick-change assembly further comprises a quick-change bracket arranged on a beam of the battery-changing vehicle, and the battery pack is detachably connected to the quick-change bracket in a bolt locking manner;

along the width direction of the battery replacement vehicle, the side wall of each battery pack is provided with a plurality of locking pieces; and a locking mechanism is arranged on the quick-change support and corresponds to the locking pieces one by one so as to lock the battery pack on the vehicle beam in a bolt locking manner from bottom to top along the vertical direction.

In the scheme, the battery pack is detachably connected to a quick-change support of the battery replacing vehicle, the quick-change support is provided with a plurality of locking mechanisms along the width direction of the battery replacing vehicle, the locking mechanisms are correspondingly provided with a plurality of locking parts, and connecting points of the battery pack and the quick-change support can be increased, so that the shearing stress applied to a single connecting point is reduced, the connection between the battery pack and the quick-change support is more stable and reliable, and the reliability of the connection between the battery pack and the quick-change support is improved.

Preferably, the locking pieces of the battery packs on two side walls along the width direction of the battery replacement vehicle are staggered with each other in the width direction of the battery replacement vehicle.

In this scheme, the locking piece staggers each other on two sides of battery package, can allow locking piece and locking mechanism between two adjacent battery packages to have certain coincidence in trading electric vehicle length direction, can reduce the space that whole quick change assembly occupy in trading electric vehicle length direction like this.

Preferably, the quick-change bracket comprises a left bracket and a right bracket which are symmetrically arranged, and the left bracket and the right bracket are respectively connected to the side walls of the corresponding sides of the vehicle beam;

along trade electric vehicle's length direction, locking piece and locking mechanism all are located the both sides of car roof beam.

In this scheme, through adopting above-mentioned structure, be connected battery package and quick change support in the outside of car roof beam, locking portion is more convenient with being connected of locking mechanism, also is convenient for the dismantlement between battery package and the quick change support simultaneously, and left socle and right branch frame symmetry set up, are favorable to keeping trading the focus balance of electric vehicle.

Preferably, the quick-change bracket further comprises a connecting frame, and the connecting frame is positioned below the vehicle beam and connects the left bracket and the right bracket;

the locking mechanism is further arranged on the connecting frame.

In this scheme, set up the link and be connected left socle and right branch frame for the quick change support is connected as a whole with the car roof beam and trade electric vehicle, has improved the rigidity of whole quick change support.

Preferably, the battery pack is connected with locking piece mounting plates on two side walls in the width direction of the battery replacing vehicle, the locking pieces are mounted on the side walls of the battery pack through the locking piece mounting plates, and the locking piece mounting plates are spaced from the top surface of the battery pack by a preset distance.

In this scheme, through installing the lock piece on the lock piece mounting panel, avoid the lock piece to influence the regularity of battery package, also can not cause the influence to the regularity of the shape of battery package. The mounted position of locking piece mounting panel and battery package top interval default distance can promote the battery package and install the stability when trading the electric vehicle on.

Preferably, the quick-change bracket is provided with a concave part corresponding to the locking piece mounting plate at the locking mechanism, and the concave part is formed by extending downwards the quick-change bracket and surrounds at least part of the battery pack.

In this scheme, the depressed part surrounds at least partial battery package, through the effect of depressed part, can play the limiting displacement to the battery package to a certain extent.

Preferably, a buffer structure is arranged between the concave part and the locking piece mounting plate.

In this scheme, buffer structure can slow down rocking of battery package in trading electric vehicle driving process, avoids the impact that causes quick change support and car roof beam.

Preferably, a buffer is further arranged between the quick-change bracket and the battery pack; the buffer piece is located between the side wall of the battery pack and the quick-change bracket and is at least connected with one of the quick-change brackets.

In this scheme, the bolster can set up along the length direction and/or the width direction who trades electric vehicle, can slow down rocking of battery package in trading electric vehicle driving process, avoids the impact that causes quick change support and car roof beam.

Preferably, the quick-change assembly further includes a battery-end electrical connector and a vehicle-end electrical connector, the battery-end electrical connector is disposed on the battery pack, and the vehicle-end electrical connector is disposed on the quick-change bracket;

after the battery pack is installed on the quick-change support, the battery end electric connector is electrically communicated with the vehicle end electric connector.

In the scheme, the battery pack can be electrically connected with the battery replacing vehicle through the battery end electric connector and the vehicle end electric connector so as to supply power to the battery replacing vehicle. The battery end electric connector is arranged on the outer surface of the battery pack, so that in the connection process of the battery pack and the quick-change bracket, the battery end electric connector is conveniently connected with the vehicle end electric connector, and the battery pack supplies power to the battery-changing vehicle.

Preferably, the battery end electric connector is arranged at the top of the battery pack, the vehicle end electric connector is arranged on the lower surface of the quick-change support, and the battery end electric connector is in butt joint communication with the vehicle end electric connector in the vertical direction.

In this scheme, through adopting above-mentioned structure, when the locking piece removed along vertical direction and was connected with locking mechanism, battery end electric connector also can be connected with car end electric connector in the vertical direction of synchronous edge, accomplishes the battery package and trades the electricity of electric vehicle and be connected. The lifting and the electric connection of the battery pack are completed in one process, so that the installation efficiency of the battery pack is improved.

Preferably, along the width direction of the battery replacement vehicle, the battery end electric connector is arranged at the end of the battery pack, the quick-change bracket is provided with a position adjusting mechanism, and the position adjusting mechanism is used for driving the vehicle end electric connector to rotate so as to connect or separate the vehicle end electric connector and the battery end electric connector.

In this scheme, turn into car end electric connector towards battery end electric connector pivoted motion state through position control mechanism with the battery package upward movement's state, need not to be equipped with other driving source, practice thrift the cost.

Preferably, the position adjusting mechanism comprises a rotating part provided with the vehicle-end electric connector and a driving part moving along with the vertical movement of the battery pack, and the rotating part is rotatably connected to the quick-change bracket;

the rotating portion is connected with the driving portion, the battery pack moves upwards to drive the driving portion to move upwards, and therefore the rotating portion is driven to rotate towards the direction where the battery pack is located, and the vehicle end electric connector rotates relative to the battery end electric connector.

In this scheme, drive division can remove along with the removal of battery package, and when the battery package upwards removed under the drive of trading the electrical equipment, drive division shifts up thereupon to drive the rotation portion and rotate, and then car end electric connector also can rotate in order to be close to battery end electric connector, and be connected with it, vice versa. During specific implementation, the vehicle-end electric connector and the battery-end electric connector can be in floating connection, so that the problem that each pole of the vehicle-end electric connector is dislocated with each pole of the battery-end electric connector due to rotation of the vehicle-end electric connector is solved.

Preferably, the driving part comprises a rack vertically and slidably connected to the quick-change bracket;

the rotating part comprises a rotating plate for mounting the vehicle-end electric connector, a rotating shaft fixedly connected with the rotating plate and a gear sleeved and fixedly connected with the rotating shaft, and the rotating plate is rotatably connected to the side part of the quick-change support through the rotating shaft;

the rack is in meshed transmission with the gear, and the rack moves along with the battery pack in the vertical direction to drive the gear to rotate.

In this scheme, drive gear revolve through the rack, make the rotor plate of installing car end electric connector rotate towards the quick change support, make car end electric connector be close to battery end electric connector.

Preferably, the quick-change bracket is provided with at least two rotating seats at an end portion close to the vehicle-end electric connector, and the rotating shaft penetrates through the rotating seats and can rotate along the axis of the rotating shaft.

In this scheme, realize the rotation of axis of rotation and quick change support through rotating the seat and be connected, realize supporting the multiple spot of axis of rotation through setting up two at least rotation seats, guarantee the stability of axis of rotation when rotating.

Preferably, a guide block is arranged on one side, away from the gear, of the rack, a guide rail extending vertically is arranged on the quick-change support, a guide groove extending vertically is formed in the guide rail, and the guide block is located in the guide groove and can move along the vertical direction.

In the scheme, the guide groove enables the guide block to move more stably; through the sliding fit of the guide rail and the guide block, the friction resistance of the rack in the moving process in the vertical direction is small, the rack moves more smoothly, and the moving efficiency is improved.

Preferably, the left bracket comprises a first connecting plate connected with a vehicle beam and a vertically arranged mounting plate for mounting the locking mechanism, and one end of the mounting plate is connected to the first connecting plate and extends along the width direction of the battery replacement vehicle, so that the locking mechanism and the locking piece are arranged oppositely.

In this scheme, the mounting panel extends along the width direction that trades the electric vehicle for locking mechanism can set up in the position department that corresponds with locking portion, and realizes through first connecting plate that the mounting panel is connected with the car roof beam.

Preferably, the left bracket further comprises a transverse plate, and the transverse plate is connected between the first connecting plate and the mounting plate and is located above the battery pack.

In this scheme, set up the diaphragm and can promote the structural strength of quick change support, and can regard as the mounting panel of other parts, for example position control mechanism's mounting panel.

Preferably, the top of the rack passes through the transverse plate upwards, a limiting seat is arranged above the transverse plate corresponding to the top of the rack, and the rack is elastically connected to the limiting seat through an elastic piece.

In this scheme, the guide rail carries out the ascending slip direction of vertical side through guide way and guide block to the rack, and the elastic component avoids the rack to drop from the quick change support, and the elastic component can act on the rack, applys ascending effort to it to let the rotor plate keep turning over the state last.

Preferably, the limiting seat is of an inverted-U-shaped plate structure, the lower end of the limiting seat is connected with the upper end face of the transverse plate, and at least part of the rack and the guide rail extend into the opening of the limiting seat.

In this scheme, the top that rack and guide rail can be protected to part rack and guide rail stretch into spacing opening of seat.

Preferably, the elastic part is a pressure spring, and the rack is connected to the inner wall of the top of the limiting seat through the pressure spring; and/or the presence of a gas in the gas,

the top of rack is equipped with the second connecting plate of level setting, the up end of second connecting plate through at least two intervals set up the elastic component connect in the top inner wall of spacing seat.

In this scheme, the elastic component is the pressure spring, and is with low costs, and the rack passes through the pressure spring to be connected in the top inner wall of spacing seat, can be so that the rack at the in-process of keeping away from the inner wall at the top of spacing seat, and the pressure spring provides certain elastic force.

A trade electric vehicle, trade electric vehicle includes above-mentioned quick change assembly.

In this scheme, the electric motor car roof beam includes the quick change assembly, and the quick change assembly includes a plurality of battery packages of arranging along the length direction who trades the electric motor car, makes the electric quantity of every battery package less when guaranteeing to trade the required electric quantity of electric motor car, and the while is assembling and disassembling the battery package at the in-process that trades the electric motor car, trades the focus of electric motor car and keeps stabilizing the difficult slope that takes place of electric motor car to guarantee the unblock of battery package. All set up locking portion through the lateral wall at the battery package, realize being connected the locking along vertical direction and locking mechanism to combine together single battery package lifting process and locking process, improve the locking efficiency of single battery package.

Preferably, the battery replacement vehicle is an electric truck.

In the scheme, the battery replacement vehicle is an electric truck, and meanwhile, under the condition of the same cruising power, the quality of a single battery pack is reduced, and the battery pack of the electric truck is easier to replace. Compared with a passenger car, the electric truck has the advantages that the required energy is larger, the power supply quantity and the volume of the battery pack are larger, and the cruising ability of the electric truck can be improved to the maximum extent by adopting the battery pack. When the battery replacement operation is performed on the electric truck, the battery pack is adopted, and a straight-up and straight-down locking and unlocking mode is realized, so that the locking and unlocking steps can be simplified, the battery replacement efficiency can be improved, the battery pack can be prevented from shaking in the battery replacement process due to excessive battery replacement steps, and the reliability of the battery replacement is improved; and energy consumption of external battery replacement equipment during battery replacement can be reduced.

The utility model discloses an actively advance the effect and lie in:

the quick-change assembly can realize that the battery pack is arranged on the vehicle beam below the battery-changing vehicle through the quick-change bracket, so that the battery pack can be disassembled and assembled from the bottom of the battery-changing vehicle, the battery-changing cost is low, the battery-changing is convenient, the locking efficiency of the battery pack is improved, and the problems of high battery-changing cost and inconvenience in battery-changing caused by the fact that the battery pack is placed above a vehicle body by an electric heavy truck or a light truck in the prior art can be effectively solved; the battery pack is replaced from the lower part of the battery replacing vehicle in the process of assembling and disassembling the battery pack on the battery replacing vehicle, the gravity center of the battery replacing vehicle is kept stable, so that the battery replacing vehicle is not prone to inclination and unbalance loading, the unbalance loading of the vehicle is not caused under the condition that the battery replacing vehicle is only connected with part of the battery pack, the use mode is more flexible, and the applicability is better. A plurality of battery packages that arrange along the length direction of trading electric vehicle make the volume and the weight of every battery package less when guaranteeing to trade the required electric quantity of electric vehicle, and easy to assemble has also reduced the requirement to the equipment of trading. The battery package in this application adopts X to (vehicle length direction) branch case, compares in whole package and Y to branch case (vehicle width direction), and X is difficult for producing the unbalance loading at the traded electric in-process to the branch case, can not cause the unbalance loading of vehicle under the condition of only connecting part battery package in addition, and the using-way is more nimble, and the suitability is better. Each battery pack is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the disassembling and assembling flexibility is higher. In addition, the bolt locking mode is easy to operate, and the locking reliability is high.

Drawings

Fig. 1 is a schematic structural view of the quick-change assembly, a vehicle beam and a quick-change bracket according to embodiment 1 of the present invention.

Fig. 2 is another schematic structural diagram of the quick-change assembly, the vehicle beam and the quick-change bracket according to embodiment 1 of the present invention.

Fig. 3 is a partial schematic structural view of the position adjustment mechanism according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of a limiting seat according to embodiment 1 of the present invention.

Fig. 5 is a schematic partial structural view of a quick-change bracket and a vehicle beam part according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of a partial structure of a battery-end electrical connector according to embodiment 1 of the present invention.

Fig. 7 is a schematic structural view of the position adjustment mechanism according to embodiment 1 of the present invention.

Fig. 8 is an exploded view of the locking member according to embodiment 1 of the present invention.

Fig. 9 is a schematic perspective view of an anti-rotation retaining structure according to embodiment 1 of the present invention.

Fig. 10 is a schematic side view of the anti-rotation retaining structure according to embodiment 1 of the present invention.

Fig. 11 is an internal structural view of an anti-rotation retaining structure according to embodiment 1 of the present invention.

Fig. 12 is a schematic structural view of a battery pack according to embodiment 1 of the present invention.

Fig. 13 is another schematic structural view of a battery pack according to embodiment 1 of the present invention.

Fig. 14 is a schematic structural view of the quick-change assembly, a car beam, and a quick-change bracket according to embodiment 2 of the present invention.

Fig. 15 is a partial schematic structural view of a battery pack according to embodiment 2 of the present invention, in which a locking member is not shown.

Description of the reference numerals:

the battery end electric connector 100, the concave part 7, the locking piece mounting plate 71, the box body 72, the connecting frame 8, the vehicle body 1, the vehicle beam 11, the quick-change support 2, the battery pack accommodating area 21, the locking mechanism 211, the lock seat 2114, the sub-support 22 and the nut 220;

the position adjusting mechanism 300, a rotating part 3001, a driving part 3002, a rack 30021, a rotating plate 30022, a rotating shaft 30023, a gear 30024, a rotating seat 301, a left bracket 31, a first connecting plate 310, a mounting plate 311, a transverse plate 312, a limiting seat 313, an elastic piece 314, a pressure spring 3140, a second connecting plate 315, a right bracket 32, a guide block 33, a guide rail 34 and a guide groove 35;

the quick-change assembly 10, the battery pack 5, the locking piece 51, the buffer piece 20, the bolt 210, the first connecting section 7121, the second connecting section 7122, the second convex part 7123, the threaded part 711, the connecting part 712, the reset piece 74, the lock shell 73 and the through hole 23;

the anti-rotation device comprises a first anti-rotation part 91, an inner gear ring 911, an inner straight tooth 9111, an inner flange 9112, a second anti-rotation part 92, an outer gear ring 921, an outer straight tooth 9211, an outer flange 9212, a tightening sleeve 922, a first concave portion 9221 and a second concave portion 9222.

Detailed Description

The present invention will be more clearly and completely described in the following detailed description of the preferred embodiments in conjunction with the accompanying drawings.

Example 1

As shown in fig. 1-13, the present embodiment discloses a quick-change assembly 10. The quick change assembly 10 comprises a plurality of battery packs 5 arranged along the length direction of the battery replacement vehicle, and each battery pack 5 is independently locked at the bottom of a vehicle beam of the battery replacement vehicle from bottom to top in the vertical direction in a bolt locking mode.

In the embodiment, the quick-change assembly 10 can mount the battery pack 5 on the vehicle beam below the battery-replacement vehicle through the quick-change bracket, so that the battery pack 5 can be mounted and dismounted from the bottom of the battery-replacement vehicle, the battery-replacement cost is low, the battery replacement is convenient, the locking efficiency of the battery pack 5 is improved, and the problems of high battery-replacement cost and inconvenience in battery replacement caused by the fact that the battery pack 5 is placed above the vehicle body by an electric heavy truck or a light truck vehicle in the prior art can be effectively solved; a plurality of battery package 5 of arranging along the length direction of trading electric vehicle makes every battery package 5's volume and weight less when guaranteeing to trade the required electric quantity of electric vehicle, and easy to assemble has also reduced the requirement to the equipment of trading. The battery pack 5 in the embodiment adopts X-direction (vehicle length direction) box separation, and compared with the whole pack and Y-direction box separation (vehicle width direction), the gravity center of the battery replacing vehicle in the battery replacing process of the X-direction box separation is kept stable, so that the inclination is not easy to occur, the unbalance loading is not easy to generate, the unbalance loading of the vehicle is not caused under the condition that only part of the battery pack 5 is connected, the use mode is more flexible, and the applicability is better. Each battery pack 5 is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the dismounting flexibility is higher. In addition, the bolt locking mode is simple to operate, and the locking reliability is high.

In this embodiment, the structure of the bolt locking mode includes a locking piece and a locking mechanism 211, the locking piece includes a bolt, the locking mechanism 211 includes a nut, the bolt with can dismantle between the nut and be connected in order to realize independently locking the battery pack in the quick change support that trades the electric vehicle. In an alternative embodiment, the bolt and the nut may be detachably connected to independently lock the battery pack to a beam of the battery replacement vehicle.

That is to say, can be according to actual design needs, independently lock the battery package on trading car roof beam 11 or quick change support of electric vehicle, set up comparatively nimble.

In the present embodiment, the locking member is disposed on the battery pack, and the locking mechanism 211 is disposed on a quick-change bracket of the battery replacement vehicle. Specifically, in this embodiment, the side walls of the battery packs 5 are provided with the locking members 51, and the battery packs 5 are connected with the locking mechanisms 211 from bottom to top along the vertical direction for locking, so that the lifting process and the locking process of a single battery pack 5 are combined, the locking efficiency of the single battery pack 5 is further improved, and the reliability of the dismounting and mounting of the single battery pack 5 is ensured.

In an alternative embodiment, the locking element can also be arranged on the frame 11 or on the quick-change bracket of the battery replacement vehicle, while the locking mechanism 211 is arranged on the battery pack 5.

That is, the locking member can be arranged on the battery pack or the quick-change bracket or the vehicle beam 11 according to the actual design requirement, and the locking mechanism 211 is similar and is more flexible.

The embodiment discloses a structure of a bolt locking mode, which can be applied to locking a battery pack 5 and a battery-replaceable vehicle, wherein the structure of the bolt locking mode comprises a bolt 210 and a nut 220, and the bolt 210 and the nut 220 are detachably connected to independently lock the battery pack 5 on a quick-change bracket 2 or a vehicle beam 11.

In specific implementation, one of the bolt 210 and the nut 220 can move from bottom to top and rotate relative to the other, so that locking between the bolt 210 and the nut 220 is realized, and the locking mode is simple and reliable in structure. And by means of the relative rotation between the external equipment driving bolt 210 and the nut 220, the battery pack 5 can move from bottom to top, so that the battery replacement vehicle is locked, and the efficiency is improved. One of the bolt 210 and the nut 220 moves from top to bottom and rotates relative to the other, so that the bolt 210 and the nut 220 can be unlocked, and the battery pack 5 can be separated from the battery replacement vehicle.

In specific implementation, according to actual working condition requirements, one of the bolt 210 and the nut 220 may be disposed on the battery pack 5, and the other is disposed on the battery replacement vehicle. The part connected with the battery replacement vehicle can be specifically connected with the quick-change bracket 2 or the vehicle beam 11 of the battery replacement vehicle. When the quick-change bracket 2 is connected with the quick-change bracket 2, the quick-change bracket 2 is connected to the vehicle beam 11, so that the bolt 210 or the nut 220 is connected with the battery-changing vehicle through the quick-change bracket 2, and when a plurality of bolts 210 or nuts 220 are arranged, the bolts can be integrated on the quick-change bracket 2 and are integrally installed on the vehicle beam 11 of the battery-changing vehicle, and the installation efficiency can be improved. Alternatively, the bolt 210 or the nut 220 is directly mounted on the vehicle frame 11 of the battery replacement vehicle, so that the mounting space can be saved and the structure can be compact.

In one embodiment, as shown in fig. 2, 8, 12 and 13, the bolt 210 is provided as the locking member 51 on the battery pack 5, and the nut 220 is provided on the quick-change bracket 2 or the vehicle beam 11. The battery pack 5 is locked and connected to the quick-change bracket 2 or the vehicle beam 11 through the bolt 210 and the nut 220. During locking, the bolt 210 can be driven by external equipment to move from bottom to top and rotate relative to the nut 220, so that the bolt 210 and the nut 220 are locked, and the battery pack 5 and the battery replacement vehicle are locked. When unlocking, the bolt 210 is driven by an external device to rotate relative to the nut 220 and move from top to bottom, and the bolt 210 and the nut 220 are separated from each other, so that the battery pack 5 is unlocked.

Specifically, fig. 12 shows a schematic structural diagram of the battery pack 5, and the battery pack 5 has a plurality of bolts 210, wherein the bolts 210 at the left end and the middle are sleeved with nuts 220 connected to the battery replacement vehicle, and the bolts 210 at the right end are not sleeved with the nuts 220. As shown in fig. 13, at the corresponding position of each bolt 210, the battery pack 5 has a through hole 23, and the through hole 23 extends along the vertical direction and penetrates through the upper and lower surfaces of the battery pack 5, so that the external battery replacement device can operate the bolt 210 to achieve unlocking and locking.

During locking, the nut 220 can be driven by external equipment to move from bottom to top and rotate relative to the bolt 210, so that the nut 220 and the bolt 210 are locked, and the battery pack 5 and the battery replacement vehicle are locked. When unlocking, the nut 220 is driven by an external device to rotate relative to the bolt 210 and move from top to bottom, and the nut 220 is separated from the bolt 210, so that the battery pack 5 is unlocked.

Further, the structure of the bolt 210 in a locking manner can be seen from patent publication No. CN 212950243U, the nut 220 includes a first lock body, the bolt 210 includes a second lock body and a locking mechanism 211, the locking mechanism 211 moves upwards through the driving rod and abuts against the steel column and drives the steel column to move out of the opening, and locking is achieved by clamping or abutting the steel column with the inner wall of the first lock body, so that locking connection between the bolt 210 and the nut 220 is achieved. When the unlocking is carried out, the driving rod moves downwards in a threaded mode, the steel column is retracted inwards through the opening, and therefore unlocking is achieved. Of course, the specific configuration of the locking manner of bolt 210 is not limited to the configuration of patent publication No. CN 212950243U, and may be other configurations, and is not limited in particular.

In a preferred embodiment, the bolt 210 or the nut 220 is disposed at a middle position of the battery pack 5, and the bolt 210 or the nut 220 penetrates the battery pack 5. So set up for lock point or the locking position of installing the battery package on quick change support 2 or the car roof beam are located the intermediate position of battery package, more are favorable to the stability after the battery package installation. In addition, the bolt or the nut penetrates through the battery pack, so that the bolt or the nut is conveniently matched with an external unlocking device, and the battery pack is conveniently unlocked.

In a preferred embodiment, the bolt 210 or nut 220 is floatingly attached to the battery pack 5. The floating connection can reduce the transmission of torque or vibration to the battery pack 5 when the battery replacement vehicle is subjected to steering distortion or jolt, so that the influence of the torque or the vibration on the battery pack 5 is reduced.

In a preferred embodiment, the bolt 210 or the nut 220 is floatingly connected to the quick-change bracket 2 or the vehicle beam 11. The floating connection can reduce the torque or vibration of the battery replacement vehicle when the battery replacement vehicle is subjected to steering distortion or jolt, and the torque or vibration is transmitted to the quick-change bracket 2 or the vehicle beam 11, so that the influence of the torque or the vibration on the quick-change bracket 2 or the vehicle beam 11 is reduced.

Wherein the locking mechanism 211 further comprises a fixing base (not shown in the figures), and the nut 220 is connected to the fixing base through floating so as to realize floating connection with the quick-change bracket 2 or the vehicle beam 11.

In a preferred embodiment, the bolt lock structure further includes an anti-rotation retaining structure (not shown) connected to the bolt 210 and/or the nut 220 to prevent relative rotational movement between the bolt 210 and the nut 220. The relative rotation between the bolt 210 and the nut 220 is avoided, and the stability of the connection between the battery pack 5 and the quick-change bracket 2 is further ensured. The anti-rotation retaining structure can limit the relative rotation of the bolt 210 and the nut 220 by one of the ratchet, pawl, expansion ball, clamping and meshing.

As shown in fig. 8, the bolt 210 includes a thread portion 711 and a connection portion 712, the thread portion 711 is in threaded connection with the nut 220 to ensure the connection firmness, and the connection portion 712 is connected with the anti-rotation anti-back-off structure to prevent the bolt 210 from rotating relative to the nut 220, so as to ensure the connection firmness of the bolt 210 and prevent the bolt 210 from accidentally slipping off the nut 220.

As shown in fig. 8 to 11, the rotation-prevention and withdrawal-prevention structure includes a first rotation-prevention member 91 and a second rotation-prevention member 92, the first rotation-prevention member 91 is sleeved on an outer circumferential side of the second rotation-prevention member 92, the first rotation-prevention member 91 is connected to the battery pack 5, the second rotation-prevention member 92 is connected to the connecting portion 712 of the bolt 210, and the second rotation-prevention member 92 is used for switching between the first position and the second position under the action of an external force. When the second rotation-preventing part 92 is located at the first position, the outer peripheral wall of the second rotation-preventing part 92 is clamped with the inner peripheral wall of the first rotation-preventing part 91. When the second rotation preventing member 92 is located at the second position, the second rotation preventing member 92 is disengaged from the first rotation preventing member 91 in the axial direction of the bolt 210.

First prevent that rotation part 91 plays connection and positioning action, through trading the electric equipment to apply the effort along bolt 210 axial direction to second prevent rotation part 92, make second prevent that rotation part 92 removes to the second position from the first position, the second that is located the second position prevents that rotation part 92 can the free rotation, and drive the bolt 210 that second prevents that rotation part 92 connects and rotate, carry out locking or unblock bolt 210 and nut 220, accomplish locking or unblock operation after, prevent rotation part 92 with the second again by the second position drive to the first position, second prevents that rotation part 92 and first prevent rotation part 91 joint this moment, the position of second prevents that rotation part 92 is fixed, bolt 210 can't rotate again.

In other alternative embodiments, the first rotation prevention member 91 is also fixed to the hybrid vehicle when the lock member 51 is mounted on the hybrid vehicle.

As shown in fig. 9, the first rotation-preventing part 91 in this embodiment includes an inner ring gear 911, the second rotation-preventing part 92 includes an outer ring gear 921, and the inner ring gear 911 is fitted on the outer peripheral side of the outer ring gear 921. When the second anti-rotation member 92 is located at the first position, the gear teeth of the inner gear ring 911 are clamped with the gear teeth of the outer gear ring 921, the first anti-rotation member 91 is clamped with the second anti-rotation member 92 through the engagement of the inner gear ring 911 and the outer gear ring 921, and the first anti-rotation member 91 limits the rotation of the bolt 210 by limiting the rotation of the second anti-rotation member 92.

As shown in fig. 9, the inner gear ring 911 and the outer gear ring 921 are both ring-shaped structures, the inner gear ring 911 has inner straight teeth 9111 distributed along the inner circumference, the outer gear ring 921 has outer straight teeth 9211 distributed along the outer circumference, and the shape of the outer straight teeth 9211 is matched with the shape of the inner straight teeth 9111, so that the outer straight teeth 9211 and the inner straight teeth 9111 are clamped.

In other alternative embodiments, the gear teeth of the inner gear ring 911 and the outer gear ring 921 may be in other shapes such as helical teeth besides a straight-tooth structure, and it is only necessary that the inner gear ring 911 limits the circumferential rotation of the outer gear ring 921.

In other alternative embodiments, an external thread may be further provided on the outer circumferential surface of the ring gear 911 to connect the ring gear 911 with other components.

As shown in fig. 9 to 11, the first rotation preventing member 91 further includes an inner flange 9112, the inner flange 9112 extending from an inner peripheral wall of the ring gear 911 toward the radially inner side of the ring gear 911. When the second rotation-preventing member 92 is located at the first position, one end of the second rotation-preventing member 92 away from the bolt 210 abuts against the inner flange 9112. The arrangement of the inner flange 9112 can limit the movement of the second anti-rotation piece 92 in the first anti-rotation piece 91, and avoid the slippage of one end of the second anti-rotation piece 92, which is far away from the nut 220, from the first anti-rotation piece 91.

Specifically, as shown in fig. 9 to 11, an inner flange 9112 in this embodiment is located in the axial middle of the inner peripheral wall of the ring gear 911, an outer flange 9212 is formed on the outer peripheral wall of the outer ring gear 921, an outer straight tooth 9211 is located on the outer periphery of the outer flange 9212, and when the second rotation preventing member 92 is located at the first position, the outer flange 9212 of the outer ring gear 921 abuts against the inner flange 9112 of the ring gear 911, so that the first rotation preventing member 91 positions the second rotation preventing member 92.

As shown in fig. 8 to 11, the second rotation preventing member 92 further includes a tightening sleeve 922, the outer ring 921 is sleeved on the tightening sleeve 922, and the second rotation preventing member 92 is connected to the bolt 210 through the tightening sleeve 922. Specifically, be equipped with first bellying and the first depressed part 9221 of mutually supporting on the internal perisporium of outer ring gear 921 and the periphery wall of screwing up cover 922 respectively to realize outer ring gear 921 and the joint of screwing up cover 922, further can also realize screwing up cover 922 and rotate in circumference, guarantee the stability of connecting. The connecting portion 712 of the bolt 210 includes a first connecting section 7121 and a second connecting section 7122, the second connecting section 7122 is located on a side of the first connecting section 7121 away from the threaded portion 711, and the second connecting section 7122 extends along the axial direction of the bolt 210 and extends into the tightening sleeve 922 to be connected with the tightening sleeve 922. The periphery wall of second linkage segment 7122 and the internal perisporium of screwing up cover 922 are equipped with second bellying 7123 and the second depressed part 9222 of mutually supporting respectively to realize the calorie of bolt 210 and screwing up cover 922 and go forward, further can also prevent that bolt 210 from rotating in circumference, guarantee the stability of connecting.

The first projecting portion in this embodiment is provided on the inner peripheral wall of the outer ring gear 921, the first recessed portion 9221 is provided on the outer peripheral wall of the tightening sleeve 922, the second projecting portion 7123 is provided on the outer peripheral wall of the second connecting section 7122, and the second recessed portion 9222 is provided on the inner peripheral wall of the tightening sleeve 922. In other alternative embodiments, it is also possible that the first recess 9221 is provided on the inner circumferential wall of the outer ring gear 921, the first projection is provided on the outer circumferential wall of the tightening sleeve 922, the second recess 9222 is provided on the outer circumferential wall of the second connecting section 7122, and the second projection 7123 is provided on the inner circumferential wall of the tightening sleeve 922.

It should be noted that in alternative embodiments, a rotational anti-backup feature may be correspondingly configured to couple to the nut 220. At this time, the first anti-rotation member 91 is sleeved on the outer peripheral side of the second anti-rotation member 92, the first anti-rotation member 91 is connected to the battery pack 5, the second anti-rotation member 92 needs to be correspondingly configured to be connected to the nut 220, and the second anti-rotation member 92 is used for switching between the first position and the second position under the action of external force. When the second rotation-preventing part 92 is located at the first position, the outer peripheral wall of the second rotation-preventing part 92 is clamped with the inner peripheral wall of the first rotation-preventing part 91. When the second anti-rotation member 92 is located at the second position, the second anti-rotation member 92 is disengaged from the first anti-rotation member 91 in the axial direction of the bolt 210 or the nut 220.

As shown in fig. 8, the locking member 51 further includes a reset member 74 and a lock case 73, the first rotation-preventing member 91, the second rotation-preventing member 92 and the reset member 74 are disposed in the lock case 73, and the thread portion 711 of the bolt 210 can extend out of the lock case 73 to be engaged with the nut 220. Two ends of the reset piece 74 respectively abut against the lock case 73 and the second rotation-preventing piece 92, and the reset piece is used for applying acting force to the second rotation-preventing piece 92 to reset the second rotation-preventing piece 92 from the second position to the first position. When the second rotation-preventing part 92 moves in the direction close to the nut 220 along the axial direction of the bolt 210, the reset part 74 is pressed and generates compression displacement, and after the locking or unlocking of the bolt 210 and the nut 220 is completed through the second rotation-preventing part 92, under the action of the restoring force of the elastic part, the second rotation-preventing part 92 resets to the first position and is clamped with the first rotation-preventing part 91, so that the rotation is not performed, and the rotation-preventing function of the bolt 210 is realized.

While the return member 74 in this embodiment is a spring, in alternative embodiments, the return member 74 may be another resilient member that can perform the above-described functions.

The locking and unlocking process of the battery pack 5 and the quick-change holder 2 will be briefly described below based on the specific mechanism of the locking device.

In the locking process, the battery replacement device pushes the second rotation prevention part 92 to move from the first position to the second position so as to be separated from the first rotation prevention part 91, and at the moment, the spring is in a compressed state. After the second rotation-preventing part 92 is completely separated, the bolt 210 is rotated by rotating the second rotation-preventing part 92, so that the bolt 210 is connected with the nut 220. After the bolt 210 is locked with the nut 220, the acting force applied to the second rotation preventing part 92 and separated from the first rotation preventing part 91 is removed, the second rotation preventing part 92 is reset to the first position from the second position under the acting force of the spring, the first rotation preventing part 91 can limit the circumferential rotation of the second rotation preventing part 92, and further the axial rotation of the bolt 210 is limited, and the locking and anti-loosening function is realized.

In the unlocking process, the battery replacement device pushes the second rotation prevention part 92 to move from the first position to the second position so as to be separated from the first rotation prevention part 91, and at the moment, the spring is in a compressed state. After the second rotation preventing member 92 is completely separated, the bolt 210 is rotated by rotating the second rotation preventing member 92, so that the bolt 210 is separated from the nut 220.

As shown in fig. 1, at least a part of the battery pack 5 is located below the vehicle body frame 11. Specifically, the battery pack 5 may be located entirely below the vehicle beam 11, that is, the upper surface of the battery pack 5 is located below the vehicle beam 11, and the outer surface of the battery pack 5 has a flat structure, which facilitates manufacturing the battery pack 5.

In other specific embodiments, the battery pack 5 may also utilize the space between the vehicle beams 11 or the spaces on both sides of the vehicle beams 11, that is, the upper portion of the battery pack 5 protrudes upward and is located between the vehicle beams 11 of the battery replacement vehicle and at least one of both sides of the battery replacement vehicle, or the upper portion of the battery pack 5 is located between the vehicle beams 11 of the battery replacement vehicle or at least one of both sides of the battery replacement vehicle.

When the upper surface of the battery pack 5 is positioned below the vehicle beam 11, the outer surface of the battery pack 5 is flat, so that the battery pack 5 is convenient to manufacture; when the upper portion of battery package 5 is located between the car roof beam 11, one side, during at least one in both sides, make full use of the space between the car roof beam 11 and/or the side, thereby promote the whole volume of battery package 5 and promote the power supply capacity of battery package 5, or under the same power supply capacity, can reduce the vertical height of battery package 5, increase the vertical distance between the bottom of battery package 5 and the ground, reserve sufficient high space for trading battery package 5 operation of electrical equipment.

In this embodiment, as shown in fig. 1, the quick-change assembly 10 further includes a quick-change bracket 2 disposed on a vehicle beam 11 of the battery replacement vehicle, the battery packs 5 are detachably connected to the quick-change bracket 2, and a plurality of locking pieces 51 are disposed on a side wall of each battery pack 5 along a width direction of the battery replacement vehicle. The quick-change bracket 2 is provided with locking mechanisms 211, and the locking mechanisms 211 and the locking pieces 51 are arranged in a one-to-one correspondence manner so as to lock the battery pack 5 on the vehicle beam 11 from bottom to top along the vertical direction. The battery pack is detachably connected to the quick-change support 2 of the battery replacing vehicle, the plurality of locking pieces 51 are arranged on the battery pack 5 along the width direction of the battery replacing vehicle, and the plurality of locking pieces 51 can increase the connection points of the battery pack 5 and the quick-change support 2, so that the shearing stress on the single connection point is reduced, the connection between the battery pack 5 and the quick-change support 2 is more stable and reliable, and the connection reliability between the quick-change assembly 10 and the quick-change support 2 is improved.

In other preferred embodiments, as shown in fig. 2, 12 and 13, locking members 51 are provided on both side walls of each battery pack 5 in the width direction of the battery replacement vehicle. Set up locking piece 51 in the both sides of battery package 5 for the both sides on the long limit of battery package 5 all can be connected with quick change support 2, thereby further promote the reliability of being connected between battery package 5 and the car roof beam 11.

In other preferred embodiments, the lock members 51 of the battery pack 5 on both side walls in the width direction of the battery replacement vehicle are offset from each other in the width direction of the battery replacement vehicle. The locking pieces 51 are staggered on two side surfaces of the battery pack, so that the locking pieces between two adjacent battery packs 5 and the locking mechanism 211 can be allowed to be overlapped to a certain extent in the length direction of the battery replacing vehicle, and the space occupied by the whole quick-change assembly in the length direction of the battery replacing vehicle can be reduced.

In the present embodiment, as shown in fig. 12 and 13, the lock member 51 may also be located in a region above the middle of the battery pack 5 in the height direction of the battery pack 5. In this alternative embodiment, the locking member 51 may be located at the middle or lower area of the battery pack 5 in the height direction of the battery pack 5. The locking piece 51 positioned in the middle or below the middle of the battery pack 5 is connected with the locking mechanism 211, the connecting point is positioned in the middle or below the middle of the battery pack 5, the area of the battery pack 5 needing to be arranged in a hanging mode is reduced, and the locking stability is high.

The battery pack 5 is used for being connected with a power exchanging vehicle and supplying power to the power exchanging vehicle. The battery pack 5 is arranged at the bottom of the battery replacement vehicle, so that external battery replacement equipment can enter the bottom of the battery replacement vehicle, and battery replacement operation is facilitated.

As shown in fig. 2, the battery pack 5 includes a case 72 and a lock member 51 provided at a side portion of the case 72, the lock member 51 being mounted to a side surface of the case through a lock member mounting plate 71;

when the battery pack 5 is locked on the battery replacement vehicle, the locking piece of the battery pack 5 moves from bottom to top and is locked on the locking mechanism 211 of the battery replacement vehicle in a T-shaped rotating locking mode.

In the embodiment, the locking piece 51 is arranged at the side part of the box body 72, so that the locking piece 51 at the end of the battery pack 5 positioned below and the vehicle-end locking mechanism 211 of the battery replacing vehicle positioned above can be in opposite positions in space, a straight-up and straight-down locking and unlocking mode is realized, and the locking and unlocking efficiency is improved; the arrangement of the lock member 51 at the side of the case 72 more effectively reduces the shock of vibration applied to the battery pack 5 at the side during traveling, compared to the arrangement of the lock member 51 at or near the bottom of the case 72.

In the present embodiment, as shown in fig. 1 and fig. 5, the quick-change bracket 2 includes a left bracket 31 and a right bracket 32 that are symmetrically arranged, the left bracket 31 and the right bracket 32 are respectively connected to the side walls of the vehicle beam 11 on the corresponding sides, and the lock piece 51 and the lock mechanism 211 are both located on both sides of the vehicle beam 11 along the length direction of the electric vehicle. Wherein, through adopting above-mentioned structure, be connected battery package 5 and quick change support 2 in the outside of car roof beam 11, the dismantlement between battery package 5 and the quick change support 2 of also being convenient for simultaneously of being connected of locking piece 51 and locking mechanism 211, and left socle 31 and the symmetrical setting of right branch frame 32 are favorable to keeping vehicle focus balanced, prevent that the vehicle from taking place to turn on one's side at unstable turn in-process.

In the present embodiment, a buffer 20 is further disposed between the quick-change bracket 2 and the battery pack 5; the buffer 20 is located between the side wall of the battery pack 5 and the quick-change holder 2 and is connected to at least one of the quick-change holder 2 and the battery pack 5. Specifically, the buffer member 20 may be disposed along a length direction and/or a width direction of the battery replacement vehicle, so as to slow down the shaking of the battery pack 5 during the driving process of the battery replacement vehicle, and avoid causing impact on the quick-change bracket 2.

In this embodiment, as shown in fig. 12, the quick-change assembly 10 further includes a battery-end electrical connector 100 and a vehicle-end electrical connector, the battery-end electrical connector 100 is disposed on the battery pack 5, and the vehicle-end electrical connector is disposed on the quick-change bracket 2; after the battery pack 5 is installed on the quick-change support 2, the battery end electric connector 100 is electrically communicated with the vehicle end electric connector, wherein the battery pack 5 can be electrically connected with the electric vehicle to be changed through the battery end electric connector 100 and the vehicle end electric connector, so that the electric vehicle to be changed is powered by the battery pack 5.

In other preferred embodiments, the battery-end electrical connector 100 is disposed on the top of the battery pack 5, the vehicle-end electrical connector is disposed on the lower surface of the quick-change bracket 2, and the battery-end electrical connector 100 is in butt-joint communication with the vehicle-end electrical connector in the vertical direction. Wherein, through adopting above-mentioned structure, when locking piece 51 removed along vertical direction and was connected with locking mechanism 211, battery end electric connector 100 also can be connected with car end electric connector along vertical direction in step, accomplishes battery package 5 and trades the electric connection of electric vehicle, and the lifting of battery package 5 is accomplished at an in-process with the electric connection, has improved the installation effectiveness of battery package 5.

In this embodiment, along the width direction of the battery replacement vehicle, the battery-end electrical connector 100 is disposed at the end of the battery pack 5, and the quick-change bracket 2 is provided with a position adjusting mechanism 300, where the position adjusting mechanism 300 is used to drive the vehicle-end electrical connector to rotate, so that the vehicle-end electrical connector is connected to or separated from the battery-end electrical connector 100. The state that the battery pack 5 moves upwards is converted into the moving state that the vehicle-end electric connector rotates towards the battery-end electric connector 100 through the position adjusting mechanism 300, and in addition, an additional driving source is not required to be arranged for electric connection between the battery pack 5 and the battery replacement vehicle, so that the running cost required by electric connection between the battery pack 5 and the battery replacement vehicle is saved.

In the present embodiment, as shown in fig. 3, the position adjustment mechanism 300 includes a rotating portion 3001 to which the vehicle-end electrical connector is mounted and a driving portion 3002 that moves with the vertical movement of the battery pack 5, the rotating portion 3001 being rotatably connected to the quick-change bracket 2; the rotating portion 3001 is connected with the driving portion 3002, and the battery pack 5 moves up to drive the driving portion 3002 to the driving rotating portion 3001 rotates towards the electric connector of the battery pack 5, so that the vehicle end electric connector rotates along the direction close to the battery end electric connector 100 and relative to the battery end electric connector 100. The driving portion 3002 can move along with the movement of the battery pack 5, when the battery pack 5 moves upward under the driving of the battery replacing device, the driving portion 3002 moves along with the upward movement of the battery pack 5, the driving portion 3002 rotates to drive the rotating portion 3001 to rotate, and then the vehicle end electric connector can rotate to be close to the battery end electric connector 100 and is connected with the battery end electric connector 100; on the contrary, when the battery pack 5 is disassembled and assembled, the battery pack 5 moves downward to drive the driving portion 3002 to move downward, and the driving portion 3002 moves downward to drive the rotating portion 3001 to rotate in a direction away from the battery end electrical connector 100, so that the battery end electrical connector 100 is disconnected from the vehicle end electrical connector.

Specifically, as shown in fig. 7, the driving part 3002 includes a rack 30021 vertically slidably coupled to the quick-change holder 2. The rotating part 3001 comprises a rotating plate 30022 for mounting the vehicle-end electrical connector, a rotating shaft 30023 fixedly connected with the rotating plate 30022 and a gear 30024 sleeved and fixedly connected with the rotating shaft 30023, wherein the rotating plate 30022 is rotatably connected to the side part of the quick-change support 2 through the rotating shaft 30023; the rack 30021 and the gear 30024 are in meshing transmission, the rack 30021 moves in the vertical direction along with the battery pack 5 to drive the gear 30024 to rotate, and the gear 30024 rotates to drive the rotating part 3001 to rotate towards the battery terminal electrical connector 100. Wherein, gear 30024 and rack 30021 arrange in the position department that is close to battery package 5 top, reduce gear 30024 and rack 30021's size, make position adjustment mechanism 300 structure more compact, drive gear 30024 through rack 30021 and rotate, make the rotor plate 30022 of installing car end electric connector rotate towards quick change support 2, guarantee driven reliability and stability, make gear 30024 at the pivoted in-process, car end electric connector is close to battery end electric connector 100 and is up to the electricity and connect, gear 30024 finishes rotating, this position adjustment mechanism 300's rack 30021 and gear 30024 can outside purchase, need not the own die sinking manufacturing, cost reduction.

The rack 30021 is arranged on the quick-change bracket 2, so that the problem that the rack 30021 is arranged on the battery pack 5 to cause a complex structure of the battery pack 5 is solved, and the problem that the rack 30021 is exposed in an external space and worn due to the fact that the battery pack 5 is transferred between the battery replacement vehicle and the charging device can also be avoided.

In the present embodiment, as shown in fig. 5, at least two rotating seats 301 are provided at the end of the quick-change bracket 2 close to the vehicle-end electrical connector, and the rotating shaft 30023 is inserted into the rotating seats 301 and can rotate along its own axis. The rotating shaft 30023 is rotatably connected with the quick-change support 2 through the rotating seat 301, and the rotating shaft 30023 is supported at multiple points through at least two rotating seats 301, so that the rotating shaft 30023 is ensured to rotate around the same axis all the time when rotating, the fluctuation generated in the axis rotating process is reduced, the rotating stability of the rotating shaft 30023 is improved, and the vehicle-end electric connector and the battery-end electric connector 100 can be smoothly electrically connected.

In this embodiment, a guide block 33 is disposed on a side of the rack 30021 away from the gear 30024, a vertically extending guide rail 34 is disposed on the quick-change bracket 2, a vertically extending guide groove 35 is disposed on the guide rail 34, and the guide block 33 is located in the guide groove 35 and can move along the vertical direction. The arrangement of the guide groove 35 enables the vertical movement of the gear to be more stable; due to the sliding fit of the guide rail 34 and the guide block 33, the rack 30021 is subjected to smaller friction resistance during the movement in the vertical direction, and the movement is smoother, so that the upward movement distance of the battery pack 5 is equal to the upward movement distance of the rack 30021.

In the present embodiment, as shown in fig. 5, the left bracket 31 includes a first connecting plate 310 connected to the vehicle frame 11 and a vertically disposed mounting plate 311 for mounting the latch mechanism 211, and one end of the mounting plate 311 is connected to the first connecting plate 310 and extends in the width direction of the battery replacement vehicle so that the latch mechanism 211 is disposed opposite to the latch member 51. Wherein, mounting panel 311 extends along the width direction who trades the electric vehicle for locking mechanism 211 can set up in the position department that corresponds with locking piece 51, makes during the upward movement of battery package 5 can accomplish locking piece 51 and get into locking mechanism 211, and realizes through first connecting plate 310 that mounting panel 311 is connected with car roof beam 11, has improved quick change support 2 and car roof beam 11 overall structure's intensity.

In this embodiment, the left bracket 31 further includes a horizontal plate 312, and the horizontal plate 312 is connected between the first connecting plate 310 and the mounting plate 311 and is located above the battery pack 5. Wherein, set up diaphragm 312 and can promote the structural strength of quick change support 2, prevent that left socle 31 from taking place to warp.

In this embodiment, as shown in fig. 4, the top of the rack 30021 passes through the transverse plate 312, a position of the transverse plate 312 corresponding to the top of the rack 30021 is disposed above the limiting seat 313, and the rack 30021 is elastically connected to the limiting seat 313 through the elastic member 314. Wherein, the guide rail 34 carries out the ascending slip guidance of vertical direction through guide way 35 and guide block 33 to rack 30021, and elastic component 314 avoids rack 30021 to drop from quick change support 2, and elastic component 314 can act on rack 30021, exerts decurrent effort to it to let rotor plate 30022 keep at the upturned state.

In this embodiment, the limiting seat 313 is an inverted U-shaped plate structure, the lower end of the limiting seat 313 is connected to the upper end surface of the transverse plate 312, and a portion of the rack 30021 and the guide rail 34 extend into the opening of the limiting seat 313. Wherein, part of the rack 30021 and the guide rail 34 extend into the opening of the limiting seat 313 to protect the tops of the rack 30021 and the guide rail 34.

In this embodiment, the elastic member 314 is a compression spring 3140, and the rack 30021 is connected to the top inner wall of the position limiting seat 313 through the compression spring 3140. The elastic member 314 is a pressure spring 3140, the cost is low, and the rack 30021 is connected to the inner wall of the top of the limiting seat 313 through the pressure spring 3140, so that the pressure spring 3140 provides a certain elastic force in the process that the rack 30021 is far away from the inner wall of the top of the limiting seat 313. The elastic member 314 can apply downward elastic restoring force, so that the rack 30021 moves downward, and then the vehicle-end electrical connector is driven to move in a direction away from the battery-end electrical connector 100, so that the two electrical connectors are separated from each other, and the battery pack 5 can be conveniently detached.

Further, in order to improve the elastic restoring force received at the rack 30021, a second connecting plate 315 is horizontally disposed at the top of the rack 30021, and an upper end surface of the second connecting plate 315 is connected to the top inner wall of the stopper 313 through at least two elastic members 314 disposed at an interval.

The embodiment also provides a battery replacement vehicle, which includes the quick-change assembly 10. It should be noted that the present embodiment does not show the overall schematic diagram of the battery replacement vehicle, and only shows the vehicle beam 11 (as shown in fig. 1).

The plurality of battery packs 5 of the quick change assembly 10 are arranged along the length direction (X direction) of the battery replacement vehicle, so that the mass of each battery pack 5 is small while the electric quantity required by the battery replacement vehicle is ensured. Each battery pack 5 is independently locked at the bottom of a vehicle beam 11 of the battery replacement vehicle from bottom to top along the vertical direction (Z direction) in a bolt locking mode.

In other alternative embodiments, a plurality of battery packs 5 may also be arranged along the same direction in the length direction of the non-battery-replacement vehicle, for example, the width direction (Y direction) of the battery-replacement vehicle, so as to facilitate the installation and removal of the battery packs 5.

In this embodiment, the battery replacement vehicle is an electric truck. The electric truck has large weight and consumes more electric energy per unit mileage, so a battery pack 5 with larger capacity is required to be placed in a limited space between two beams 11 of the electric truck, and the battery pack 5 is adopted by the electric truck, so that the cruising ability of the electric truck can be improved to the maximum extent; meanwhile, the battery pack 5 of the electric truck adopts the mode that the plurality of battery packs 5 are arranged along the length direction of the truck body under the condition of the same cruising power, a single battery pack 5 is easier to replace, if the single battery pack 5 is damaged, other battery packs 5 can continue to supply power for the battery replacement vehicle, only the damaged battery pack 5 needs to be replaced independently, and the maintenance cost when the battery pack 5 is damaged is reduced, so that the reliability of power supply of the battery pack 5 is improved. The battery package in this embodiment adopts X to the branch case (vehicle length direction), compares in whole package and Y to the branch case (vehicle width direction), and X is difficult for producing the unbalance loading at the traded electricity in-process to the branch case, can not cause the unbalance loading of vehicle under the condition of only connecting some battery packages in addition, and the using-way is more nimble, and the suitability is better.

In other preferred embodiments, the battery replacement vehicle may also be another type of vehicle, such as an electric passenger vehicle.

Example 2

A quick-change assembly is provided in this embodiment, which has a structure substantially the same as that of the quick-change assembly of embodiment 1, except for the structure of the quick-change holder. Wherein the same reference numerals as in embodiment 1 denote the same elements in this embodiment.

As shown in fig. 14 and 15, in the present embodiment, the quick-change bracket 2 further includes a connecting bracket 8, and the connecting bracket 8 is located below the vehicle beam 11 and connects the left bracket and the right bracket. Wherein, add 8 through the connection for the quick change support is done as a whole and is connected with the car roof beam and trades electric vehicle, has improved the rigidity of whole quick change support.

The connecting frame 8 may be integrally formed with the left bracket and the right bracket, or may be integrally connected by bolts, welding, or the like.

Specifically, the battery pack 5 is connected with the lock mounting plates 71 on two side walls in the width direction of the battery replacement vehicle, the lock 51 is mounted on the lock mounting plates 71 and is thus disposed on the side walls of the battery pack 5, and the lock mounting plates 71 are spaced from the top surface of the battery pack 5 by a preset distance. By mounting the lock member 51 on the lock member mounting plate 71, the lock member 51 is prevented from affecting the regularity of the battery pack 5, and the shape and regularity of the battery pack 5 are not affected. In addition, the mounting position of the locking member mounting plate 71 is spaced from the top of the battery pack by a preset distance, so that the stability of the battery pack when the battery pack is mounted on the battery replacement vehicle can be improved.

The quick-change holder 2 is provided with a recess 7 corresponding to the lock mounting plate 71 at the locking mechanism 211, the recess 7 being formed by the quick-change holder 2 extending downwards and surrounding at least part of the battery pack 5. Wherein, depressed part 7 surrounds at least partial battery package 5, through depressed part 7's effect, can play the limiting displacement to battery package 5 to a certain extent.

In a preferred embodiment, a buffer structure is arranged between the recessed portion 7 and the locking member mounting plate 71, and the buffer structure can slow down the shaking of the battery pack during the running process of the battery replacing vehicle, so as to avoid impact on the quick-change bracket and the vehicle beam.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention 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 spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The quick-change assembly is characterized by comprising a plurality of battery packs, the battery packs are arranged along the length direction of a battery-changing vehicle, and each battery pack is independently locked at the bottom of a vehicle beam of the battery-changing vehicle from bottom to top in the vertical direction in a bolt locking mode.

2. The quick-change assembly according to claim 1, wherein the bolt locking structure includes a locking member and a locking mechanism, the locking member includes a bolt, and the locking mechanism includes a nut;

3. The quick-change assembly according to claim 2, wherein the bolt is disposed on the battery pack, and the nut is disposed on the quick-change bracket or the vehicle beam; alternatively, the first and second electrodes may be,

4. The quick-change assembly according to claim 3, wherein the bolt or the nut is disposed at a middle position of the battery pack, and the bolt or the nut penetrates through the battery pack.

5. The quick-change assembly according to claim 3, wherein the bolt or nut is floatingly coupled to the battery pack.

6. A quick-change assembly according to claim 3, characterized in that the bolt or the nut is floatingly connected to the quick-change holder or the vehicle beam.

7. The quick-change assembly according to claim 2, wherein the locking mechanism further includes a fixed base to which the nut is floatingly coupled.

8. The quick-change assembly according to claim 2, characterized in that the bolt comprises a threaded portion and a coupling portion, the threaded portion being threaded and adapted to be threadedly coupled to the nut.

9. The quick-change assembly according to claim 8, wherein the locking member further comprises a lock housing, and the bolt is disposed in the lock housing and is vertically movable relative to the lock housing.

10. The quick-change assembly according to claim 8, wherein the bolt-locking arrangement further comprises an anti-rotation anti-backup arrangement coupled to the lock member and/or the lock mechanism to prevent relative rotational movement between the lock member and the lock mechanism.

11. The quick-change assembly according to claim 10, wherein the anti-rotation and anti-backing structure includes a first anti-rotation member and a second anti-rotation member, the first anti-rotation member is sleeved on an outer peripheral side of the second anti-rotation member, and the first anti-rotation member is connected to the battery pack or the battery replacement vehicle; the second anti-rotation part is connected to the connecting part of the bolt and used for switching between a first position and a second position under the action of external force;

12. The quick-change assembly according to claim 11, wherein the first anti-rotation member includes an inner gear ring, the second anti-rotation member includes an outer gear ring, and the inner gear ring is sleeved on an outer peripheral side of the outer gear ring; when the second rotation preventing part is located at the first position, the gear teeth of the inner gear ring are clamped with the gear teeth of the outer gear ring.

13. The quick-change assembly according to claim 12, wherein the first anti-rotation member further includes an inner flange extending from an inner peripheral wall of the ring gear radially inward of the ring gear; when the second anti-rotation piece is located at the first position, one end, far away from the bolt, of the second anti-rotation piece is abutted to the inner flange.

14. The quick-change assembly according to claim 11, characterized in that the coupling portion of the bolt projects into the second anti-rotation element, one of the peripheral walls of the coupling portion and the internal peripheral wall of the second anti-rotation element being provided with a recess and the other with a projection, the recess cooperating with the projection.

15. The quick-change assembly according to claim 11, wherein the locking member further includes a lock housing, the bolt being disposed in the lock housing and being vertically movable relative to the lock housing;

the locking piece further comprises a reset piece, and the first anti-rotation piece, the second anti-rotation piece and the reset piece are all arranged in the lock shell;

16. The quick-change assembly according to any one of claims 1 to 15, wherein at least a portion of the battery pack is located below the vehicle sill.

17. The quick-change assembly according to claim 16, wherein an upper surface of the battery pack is positioned below the vehicle beam;

18. The quick-change assembly according to any one of claims 1 to 15, further comprising a quick-change bracket arranged on a vehicle beam of the electric vehicle, wherein the battery pack is detachably connected to the quick-change bracket in a bolt locking manner;

19. The quick-change assembly as claimed in claim 18, wherein the locking members of the battery pack on the two side walls in the width direction of the vehicle are offset from each other in the width direction of the vehicle.

20. The quick-change assembly according to claim 18, wherein the quick-change bracket comprises a left bracket and a right bracket which are symmetrically arranged and are respectively connected to the side walls of the corresponding sides of the vehicle beam;

21. The quick-change assembly according to claim 20, wherein the quick-change bracket further comprises a connecting bracket which is located below the vehicle beam and connects the left bracket and the right bracket;

the locking mechanism is further arranged on the connecting frame.

22. The quick-change assembly according to claim 21, wherein the battery pack is connected with a lock mounting plate at both side walls in the width direction of the electric vehicle, the lock is arranged at the side wall of the battery pack by being mounted on the lock mounting plate, and the lock mounting plate is spaced from the top surface of the battery pack by a preset distance.

23. The quick-change assembly according to claim 22, wherein the quick-change bracket is provided with a recess at the locking mechanism corresponding to the latch mounting plate, the recess being formed by the quick-change bracket extending downwardly and surrounding at least a portion of the battery pack.

24. The quick-change assembly according to claim 23, wherein a buffer structure is provided between the recess and the lock member mounting plate.

25. The quick-change assembly according to claim 18, wherein a buffer member is further provided between the quick-change bracket and the battery pack; the buffer piece is located between the side wall of the battery pack and the quick-change bracket and is at least connected with one of the quick-change brackets.

26. The quick-change assembly according to claim 20, further comprising a battery-end electrical connector disposed on the battery pack and a vehicle-end electrical connector disposed on the quick-change bracket;

when the battery pack is installed on the quick-change support, the battery end electric connector is electrically communicated with the vehicle end electric connector.

27. The quick-change assembly according to claim 26, wherein the battery-end electrical connector is disposed on a top portion of the battery pack, and the vehicle-end electrical connector is disposed on a lower surface of the quick-change holder, the battery-end electrical connector being in abutting communication with the vehicle-end electrical connector in a vertical direction.

28. The quick-change assembly according to claim 26, wherein the battery-end electrical connector is disposed at an end of the battery pack in a width direction of the electric vehicle, and the quick-change bracket is provided with a position adjustment mechanism for rotating the vehicle-end electrical connector to connect or disconnect the vehicle-end electrical connector with or from the battery-end electrical connector.

29. The quick-change assembly according to claim 28, wherein the position adjustment mechanism includes a rotating portion to which the vehicle-end electrical connector is mounted and a driving portion that moves with vertical movement of the battery pack, the rotating portion being rotatably coupled to the quick-change bracket;

30. The quick-change assembly according to claim 29, wherein the driving portion comprises a rack vertically slidably coupled to the quick-change holder;

31. The quick-change assembly according to claim 30, characterized in that the quick-change holder is provided at its end portion close to the vehicle-end electrical connector with at least two rotating seats, and the rotating shaft is arranged through the rotating seats and can rotate along its own axis.

32. The quick-change assembly according to claim 30, wherein a guide block is provided on a side of the rack away from the gear, a vertically extending guide rail is provided on the quick-change bracket, a vertically extending guide groove is provided on the guide rail, and the guide block is located in the guide groove and can move in a vertical direction.

33. The quick-change assembly according to claim 32, wherein the left bracket comprises a first connecting plate connected with a vehicle beam and a vertically arranged mounting plate for mounting the locking mechanism, and one end of the mounting plate is connected with the first connecting plate and extends along the width direction of the battery replacement vehicle, so that the locking mechanism is arranged opposite to the locking piece.

34. The quick-change assembly according to claim 33, wherein the left bracket further comprises a cross plate connected between the first connecting plate and the mounting plate and positioned above the battery pack.

35. The quick-change assembly according to claim 34, wherein the top of the rack extends upward through the cross plate, a stopper seat is disposed above the cross plate at a position corresponding to the top of the rack, and the rack is elastically connected to the stopper seat through an elastic member.

36. The quick-change assembly according to claim 35, wherein the limiting seat is an inverted U-shaped plate structure, the lower end of the limiting seat is connected with the upper end surface of the transverse plate, and at least a part of the rack and the guide rail extend into the opening of the limiting seat.

37. The quick-change assembly according to claim 36, wherein the elastic member is a compression spring, and the rack is connected to the top inner wall of the limiting seat through the compression spring; and/or the presence of a gas in the gas,

38. A charging vehicle comprising a quick-change assembly as claimed in any one of claims 1-37.

39. The battery replacement vehicle of claim 38, wherein the battery replacement vehicle is an electric truck.