CN116118462A

CN116118462A - Quick change assembly and contain its trading vehicle

Info

Publication number: CN116118462A
Application number: CN202211306025.5A
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: 2023-05-16
Also published as: CN116118451A; CN116118463A; CN218536330U; CN218536331U; CN218558544U; CN116118467A; CN116001549A; CN218558553U; CN116160835A; CN218536329U; CN218577491U; CN218805181U; CN219007568U; CN116118456A; CN116001547A; CN116039355A; CN218558549U; CN218558555U; CN218558545U; CN116118465A

Abstract

The invention provides a quick-change assembly and a battery-change vehicle comprising the same. The quick-change assembly comprises a plurality of battery packs, the battery packs are arranged along the length direction of the battery change vehicle, and each battery pack is independently locked at the bottom of a beam of the battery change vehicle in a bolt locking mode from bottom to top along the vertical direction. The quick-change assembly can realize that the battery pack is mounted on the vehicle beam below the electric vehicle through the quick-change bracket, so that the battery pack can be dismounted from the bottom of the electric vehicle, the electric cost is lower, the electric replacement is convenient, and the locking efficiency of the battery pack is improved; the gravity center of the battery replacing vehicle is kept stable, so that the battery replacing vehicle is not easy to incline and unbalanced load is not easy to generate, and the unbalanced load of the vehicle cannot be caused under the condition that the battery replacing vehicle is only connected with part of battery packs, so that the battery replacing vehicle is more flexible in use mode and better in applicability. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a bolt locking mode, so that the disassembly and assembly flexibility is higher. In addition, the bolt locking mode is simple to operate and high in locking reliability.

Description

Quick change assembly and contain its trading vehicle

This patent application claims priority to the chinese patent application No. 2022108370942 filed on 7.15 2022.

Technical Field

The invention relates to the field of power conversion, in particular to a quick-change assembly and a power conversion vehicle comprising the same.

Background

The battery pack mounting mode of the existing battery change vehicle is generally divided into fixed mounting and replaceable mounting, wherein the battery pack which is fixedly mounted is generally fixed on the vehicle; the replaceable safety-rotating battery pack generally adopts a movable mounting mode, and the battery pack can be taken down at any time to be replaced or charged, and is mounted on the vehicle body after the replacement or charging is finished.

The existing electric heavy truck or light truck is provided with a battery pack which is arranged above a truck body, the battery pack is required to be disassembled and assembled from the upper part of the truck to realize power exchange during power exchange, the cost of the sling is high, the occupied space is large, the land cost and the equipment cost for building a station are increased, the weight of the battery pack is large, shaking is easy to occur in the hoisting process, the hoisting reliability is affected, and potential safety hazards exist.

Disclosure of Invention

The invention aims to overcome the defects of high cost, poor reliability and potential safety hazard in the prior art when power is replaced, and provides a quick-change assembly and a power-replacing vehicle comprising the same.

The invention solves the technical problems by the following technical scheme:

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

In the scheme, the quick-change assembly can realize that the battery pack is mounted on the vehicle beam below the vehicle body through the quick-change bracket, so that the battery pack can be dismounted from the bottom of the vehicle body, the battery pack is low in battery replacement cost and convenient to replace, the locking efficiency of the battery pack is improved, and the problems of high battery replacement cost and inconvenient battery replacement caused by the fact that the battery pack is placed above the vehicle body by an electric heavy truck or light truck in the prior art can be effectively solved; the unbalanced load is not easy to generate, and the unbalanced load of the vehicle can not be caused under the condition that the vehicle is replaced and only part of the battery packs are connected, so that the use mode is more flexible and the applicability is better. The plurality of battery packs that a plurality of along trading the length direction of electric vehicle arrange make the volume and the weight of every battery pack less when guaranteeing the required electric quantity of trading the electric vehicle, easy to assemble has also reduced the requirement to trading electric equipment. 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 to the branch case keeps stable in the focus that trades the electric vehicle at the electric in-process of trading and takes place the slope, is difficult for producing the unbalanced load, also can not cause the unbalanced load of vehicle under the condition of only connecting partial battery package moreover, and the mode of use is more nimble, and the suitability is better. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a bolt locking mode, so that the disassembly and assembly flexibility is higher. In addition, the bolt locking mode is simple to operate and high in locking reliability.

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

the bolt and the nut are detachably connected to realize independent locking of the battery pack on the vehicle beam; or, the quick-change assembly further comprises a quick-change bracket arranged on a beam of the battery-change vehicle, and the bolt and the nut are detachably connected to realize that the battery pack is independently locked on the quick-change bracket of the battery-change vehicle.

In this scheme, can be according to actual design needs, independently lock the battery package on trading roof beam or the quick change support of electric vehicle, set up more nimble.

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

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 roof beam, the nut is also similar, sets up more nimble.

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

In this scheme, bolt or nut set up the intermediate position at the battery package for install the battery package to the lock dead point or the lock position on quick change support or the roof beam and lie in the intermediate position of battery package, more be favorable to the stability after the battery package is installed. In addition, the bolt or the nut penetrates through the battery pack, so that the bolt or the nut is matched with the external unlocking device, and the battery pack is unlocked conveniently.

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

In this scheme, the floating connection can reduce the torque or the vibrations transmission to quick change support or roof beam when changing electric vehicle receives the turning distortion or jolt, and then makes quick change support or roof beam receive the influence of torque or vibrations to reduce.

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

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 threads and for threaded connection with the nut, and a connection portion.

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

Preferably, the locking piece further comprises a lock shell, and the bolt is arranged in the lock shell and can lift or rotate along the vertical direction relative to the lock shell.

Preferably, the structure of the bolt locking mode further comprises an anti-rotation and anti-return structure, and the anti-rotation and anti-return structure is connected with the locking piece and/or the locking mechanism so as to prevent relative rotation movement between the locking piece and the locking mechanism.

In this scheme, prevent changeing the backstop structure and can prevent that the bolt from rotating relative nut, guarantee bolted connection's fastness, avoid the unexpected slippage of bolt in the nut, and then guaranteed battery package and the stability of trading electric vehicle connection.

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

When the second rotation preventing member is located at the first position, the outer peripheral wall of the second rotation preventing member is connected with the inner Zhou Bika of the first rotation preventing member;

when the second rotation preventing member is located at the second position, the second rotation preventing member is separated from the first rotation preventing member along the axial direction of the bolt.

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

Preferably, the first rotation preventing member comprises an inner gear ring, the second rotation preventing member comprises an outer gear ring, and the inner gear ring is sleeved on the outer circumference side of the outer gear ring; when the second rotation preventing piece is positioned at the first position, gear teeth of the inner gear ring are clamped with gear teeth of the outer gear ring.

In this scheme, realize the joint of first anti-rotating piece and second anti-rotating piece through the meshing of ring gear and outer ring gear, first anti-rotating piece is through the rotation of restriction second anti-rotating piece and then restriction bolt's rotation.

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 rotation preventing member is located at the first position, one end, away from the bolt, of the second rotation preventing member is abutted against the inner flange.

In this scheme, the setting of inward flange can prevent moving in the first rotation prevention piece to the second rotation prevention piece and carry out spacingly, avoids the second to prevent rotating the piece and keep away from the one end slippage of nut from first rotation prevention piece.

Preferably, the connecting portion of the bolt extends into the second rotation preventing member, one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second rotation preventing member is provided with a concave portion, the other is provided with a convex portion, and the concave portion is matched with the convex portion.

In this scheme, realize the connection of bolt and second anti-rotation piece through the cooperation of perpendicular groove and bellying to can restrict the rotation of bolt for the second anti-rotation piece, guarantee the stability of connection.

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

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

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

In this scheme, when the second prevent changeing the piece and remove to the direction that is close to the nut along the bolt axial, reset the piece pressurized and produce compression displacement, when accomplishing the locking or the unblock of bolt and nut through the second prevent changeing the piece, under the restoring force effect of reset piece, the second prevents changeing the piece and resets to the first position and realize the joint with first prevent changeing the piece, and then no longer rotate, realizes the function of preventing changeing to the bolt.

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

In this scheme, the battery package is located the below of roof beam at least partially, still can utilize the space between the roof beam both sides or can utilize the space between the roof beam both sides and the 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 positioned 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-powered vehicle.

In this scheme, the upper surface of battery package is located the below of roof beam, and the surface structure of battery package is leveled, the manufacturing of battery package of being convenient for. The upper part of the battery pack is positioned between the vehicle beams, one side or at least one of the two sides, the space between the vehicle beams and the space at the side are fully utilized, the whole volume of the battery pack is promoted, the power supply capacity of the battery pack is improved, or under the same power supply capacity, the longitudinal height of the battery pack can be reduced, the vertical distance between the bottom of the battery pack and the ground is increased, and enough height space is reserved for battery pack replacement operation of the battery replacement equipment.

Preferably, the quick-change assembly further comprises a quick-change bracket arranged on a beam of the battery-change 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 changing vehicle, the side wall of each battery pack is provided with a plurality of locking pieces; the quick-change bracket is provided with a locking mechanism, and the locking mechanism is arranged in one-to-one correspondence with the locking pieces, so that the battery pack is locked to the vehicle beam in a bolt locking mode from bottom to top along the vertical direction.

In this scheme, battery package detachably connects in the quick change support of trading electric vehicle, and the quick change support is equipped with a plurality of locking mechanisms along trading electric vehicle's width direction, and a plurality of locking mechanisms correspond to have a plurality of locking portions, multiplicable battery package and quick change support's tie point to reduce the shear stress that receives of single tie point department, make the connection between battery package and the quick change support more reliable and stable, improved the connection reliability between battery package and the quick change support.

Preferably, the battery packs have locking pieces on both side walls along the width direction of the battery-changing vehicle, which are offset from each other in the width direction of the battery-changing vehicle.

In the scheme, the locking pieces are staggered on the two side faces of the battery packs, so that the locking pieces and the locking mechanism between two adjacent battery packs can be allowed to be overlapped to a certain extent in the length direction of the vehicle, and the occupied space of the whole quick-change assembly in the length direction of the vehicle can be reduced.

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 with the side walls of the corresponding sides of the vehicle beam;

along the length direction of the battery-powered vehicle, the locking piece and the locking mechanism are both positioned on two sides of the vehicle beam.

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

Preferably, the quick-change bracket further comprises a connecting frame, wherein 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 link and connect left socle and right branch frame for quick change support is connected as a whole with roof beam and trading electric vehicle, has improved whole quick change support's rigidity.

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

In this scheme, through installing the locking piece on the locking piece mounting panel, avoid the locking piece to influence the regularity of battery package, also can not cause the influence to the regularity of battery package's shape. The mounting position of the locking piece mounting plate and the top of the battery pack are spaced at a preset distance, so that the stability of the battery pack when mounted on a battery replacement vehicle can be improved.

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 downward extension of the quick-change bracket and surrounds at least part of the battery pack.

In this scheme, the depressed part surrounds at least part battery package, through the effect of depressed part, can play the spacing effect 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 the rocking of battery package in the change electric vehicle travel in-process, avoids causing the impact to quick change support and roof beam.

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

In this scheme, the bolster can be along the length direction and/or the width direction setting of trading the electric vehicle, can slow down the rocking of battery package in trading the electric vehicle in-process of traveling, avoids causing the impact to quick change support and roof beam.

Preferably, the quick-change assembly further comprises a battery end electric connector and a vehicle end electric connector, wherein the battery end electric connector is arranged on the battery pack, and the vehicle end electric connector is arranged on the quick-change bracket;

When the battery pack is mounted on the quick-change bracket, the battery end electric connector is in electric communication with the vehicle end electric connector.

In this scheme, can realize the electric connection between battery package and the vehicle that trades through battery end electric connector and car end electric connector to supply power to the vehicle that trades. The battery end electric connector is arranged on the outer surface of the battery pack, so that the battery pack and the quick-change bracket are connected in the process of connecting, and the battery end electric connector and the vehicle end electric connector are convenient to connect, so that the battery pack supplies power to the 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 bracket, 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 removes along vertical direction and is connected with locking mechanism, battery end electric connector also can be synchronous along vertical direction with car end electric connector connection, accomplish the electricity of battery package and trading 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-side electric connector is arranged at the end part 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-side electric connector to rotate so as to enable the vehicle-side electric connector to be connected with or separated from the battery-side electric connector.

In this scheme, through position adjustment mechanism with battery package upward movement's state change into car end electric connector towards battery end electric connector pivoted motion state, need not to be equipped with additional actuating 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 which moves along with the vertical movement of the battery pack, and the rotating part is rotationally connected with the quick-change bracket;

the rotating part is connected with the driving part, and the battery pack moves upwards to drive the driving part to move upwards, so that the rotating part is driven to rotate towards the direction of the battery pack, and the vehicle-end electric connector rotates relative to the battery-end electric connector.

In this scheme, drive division can be along with the removal of battery package and remove, and when the battery package upwards moves under the drive of battery replacement equipment, drive division upwards moves thereupon to drive rotation portion and rotate, and then car end electric connector also can rotate in order to be close to battery end electric connector, and connect with it, vice versa. In the implementation, the vehicle-end electric connector and the battery-end electric connector can be connected in a floating mode, so that the possibility that dislocation occurs between the vehicle-end electric connector and 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 connected with the quick-change bracket in a sliding manner;

the rotating part comprises a rotating plate for installing the vehicle-end electric connector, a rotating shaft fixedly connected with the rotating plate and a gear sleeved on and fixedly connected with the rotating shaft, and the rotating plate is rotationally connected with the side part of the quick-change bracket through the rotating shaft;

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

In this scheme, drive the gear through the rack and rotate, make the pivoted panel that installs car end electric connector rotate towards quick change support, make car end electric connector be close to battery end electric connector.

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

In this scheme, realize the rotation of axis of rotation and quick change support through rotating the seat and be connected, realize the multiple spot support to the 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 bracket, 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 grooves are arranged to enable the guide blocks 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 smaller, the movement is smoother, and the movement efficiency is improved.

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

In this scheme, the mounting panel extends along the width direction of trading 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 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 positioned above the battery pack.

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

Preferably, the top of the rack upwards passes through the transverse plate, a limiting seat is arranged above the position of 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 slip direction on vertical direction to the rack through guide way and guide block, and the elastic component avoids the rack to drop from quick change support, and the elastic component can act on the rack, exerts ascending effort to it to let the rotor plate keep upturning state.

Preferably, the limit seat is of an inverted U-shaped plate structure, the lower end of the limit 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 limit seat.

In the scheme, the top of the rack and the guide rail can be protected by the opening of the part of the rack and the guide rail extending into the limit seat.

Preferably, the elastic piece is a compression spring, and the rack is connected to the top inner wall of the limit seat through the compression spring; and/or the number of the groups of groups,

the top of rack is equipped with the second connecting plate that the level set up, the up end of second connecting plate is through at least two interval settings 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 make the rack keep away from the in-process of the inner wall at the top of spacing seat, and the pressure spring provides certain elastic force.

A battery-changing vehicle comprises the quick-changing assembly.

In this scheme, electric motor car roof beam includes quick change assembly, and quick change assembly includes a plurality of battery packs of arranging along the length direction of trading the electric vehicle, makes the electric quantity of every battery pack less when guaranteeing the required electric quantity of trading the electric vehicle, is tearing open the in-process of trading the electric vehicle with the battery package simultaneously, and the focus of trading the electric vehicle keeps steadily trading the electric vehicle and is difficult for taking place the slope to guarantee the unblock of battery pack. Through all setting up locking portion at the lateral wall of 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 single battery package's locking efficiency.

Preferably, the battery-powered vehicle is an electric truck.

In this scheme, the battery-powered vehicle is the electric truck, and simultaneously, under the condition of the same duration, the quality of single battery package declines, and the battery package of electric truck is more easy to change. Compared with a passenger car, the electric truck has larger energy, larger power supply quantity and volume of the battery pack, and the electric truck can furthest improve the cruising ability of the electric truck by adopting the battery pack. When the electric truck is subjected to power conversion operation, the battery pack is adopted to realize a direct up-down locking and unlocking mode, so that the locking and unlocking steps can be simplified, the power conversion efficiency can be improved, the shaking of the battery pack in the power conversion process caused by excessive power conversion steps can be avoided, and the reliability of power conversion is improved; furthermore, the energy consumption of the external power conversion equipment during power conversion can be reduced.

The invention has the positive progress effects that:

the quick-change assembly can realize that the battery pack is mounted on the vehicle beam below the electric vehicle through the quick-change bracket, so that the battery pack can be dismounted from the bottom of the electric vehicle, the electric vehicle has lower electric replacement cost and convenient electric replacement, the locking efficiency of the battery pack is improved, and the problems of high electric replacement cost and inconvenient electric replacement caused by the fact that the electric heavy-truck or light-truck vehicle places the battery pack above the vehicle body in the prior art can be effectively solved; the battery package is detached from the lower part of the battery replacing vehicle in the process of replacing the battery package, the gravity center of the battery replacing vehicle is kept stable and is not prone to tilting, unbalanced load is not prone to occurring, and unbalanced load of the vehicle cannot be caused under the condition that the battery package is only connected with the battery replacing vehicle, so that the battery replacing vehicle is more flexible in use mode and better in applicability. The plurality of battery packs that a plurality of along trading the length direction of electric vehicle arrange make the volume and the weight of every battery pack less when guaranteeing the required electric quantity of trading the electric vehicle, easy to assemble has also reduced the requirement to trading electric equipment. The battery package in this application adopts X to (vehicle length direction) minute case, compares in whole package and Y to minute case (vehicle width direction), and X is difficult for producing the unbalanced load at the power conversion in-process to minute case, also can not cause the unbalanced load of vehicle under the condition of only connecting partial battery package moreover, and the use mode is more nimble, and the suitability is better. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a bolt locking mode, so that the disassembly and assembly flexibility is higher. In addition, the bolt locking mode is simple to operate and high in locking reliability.

Drawings

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

Fig. 3 is a schematic partial structure of a position adjusting mechanism according to embodiment 1 of the present invention.

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

Fig. 5 is a schematic partial structure of the quick-change bracket and the beam portion according to embodiment 1 of the present invention.

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

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

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

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

Fig. 10 is a schematic side view of the anti-rotation and anti-return structure of embodiment 1 of the present invention.

Fig. 11 is a schematic diagram of the internal structure of the anti-rotation and anti-back structure of 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 structural schematic diagram of the battery pack of embodiment 1 of the present invention.

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

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

Reference numerals illustrate:

the battery terminal 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 bracket 2, the battery pack accommodating area 21, the locking mechanism 211, the locking seat 2114, the sub-bracket 22 and the nut 220;

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

the quick-change assembly 10, the battery pack 5, the locking member 51, the buffer member 20, the bolt 210, the first connection section 7121, the second connection section 7122, the second protrusion 7123, the threaded portion 711, the connection portion 712, the reset member 74, the lock housing 73, the through hole 23;

the first rotation preventing member 91, the ring gear 911, the inner straight tooth 9111, the inner flange 9112, the second rotation preventing member 92, the outer ring gear 921, the outer straight tooth 9211, the outer flange 9212, the tightening sleeve 922, the first recess 9221, the second recess 9222.

Detailed Description

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

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 distributed along the length direction of the battery change vehicle, and each battery pack 5 is independently locked at the bottom of a beam of the battery change vehicle in a screw locking mode from bottom to top along the vertical direction.

In this embodiment, the quick-change assembly 10 can mount the battery pack 5 on the vehicle beam below the vehicle for changing electricity through the quick-change bracket, so that the battery pack 5 can be dismounted from the bottom of the vehicle for changing electricity, the cost for changing electricity is lower, the electricity changing is convenient, the locking efficiency of the battery pack 5 is improved, and the problems of high electricity changing cost and inconvenient electricity changing caused by the fact that the battery pack 5 is placed above the vehicle body by an electric heavy truck or light truck in the prior art can be effectively solved; the plurality of battery packs 5 that a plurality of along trading the length direction of electric vehicle arrange make the volume and the weight of every battery pack 5 less when guaranteeing the required electric quantity of electric vehicle that trades, easy to assemble has also reduced the requirement to trading electric equipment. The battery pack 5 in this embodiment adopts the X-direction (vehicle length direction) to divide the case, and compared with the whole case and the Y-direction (vehicle width direction), the X-direction divides the case and keeps stable thereby be difficult for taking place the slope at the focus of the battery change vehicle of changing electric in-process, is difficult for producing the unbalanced load, also can not cause the unbalanced load of vehicle under the condition of only connecting partial battery pack 5 in addition, and the mode of use is more nimble, and the suitability is better. Each battery pack 5 is independently locked at the bottom of the vehicle body of the electric vehicle in a bolt locking mode, so that the disassembly and assembly flexibility is higher. In addition, the bolt locking mode is simple to operate and high in locking reliability.

In this embodiment, the structure of the bolt locking mode includes a locking member and a locking mechanism 211, the locking member includes a bolt, the locking mechanism 211 includes a nut, and the bolt and the nut are detachably connected to realize independent locking of the battery pack to the quick-change bracket of the battery-powered vehicle. In an alternative embodiment, the bolt and the nut can be detachably connected to realize independent locking of the battery pack on the vehicle beam of the battery-changing vehicle.

That is, the battery pack can be independently locked on the beam 11 or the quick-change bracket of the electric vehicle according to actual design requirements, and the arrangement is flexible.

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

In an alternative embodiment, it is also possible to provide the locking element on the vehicle beam 11 or on the quick-change bracket of the electric vehicle, while the locking mechanism 211 is provided 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 flexible to be arranged.

The present embodiment discloses a structure of a bolt locking manner, which can be applied to the locking of the battery pack 5 and the battery-powered vehicle, and the structure of the bolt locking manner includes a bolt 210 and a nut 220, and the bolt 210 and the nut 220 are detachably connected to realize the independent locking of the battery pack 5 on the quick-change bracket 2 or the 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 the structure is reliable. 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 locking with the battery replacement vehicle is realized, and the efficiency is improved. Unlocking between the bolt 210 and the nut 220 is achieved by moving one of the bolt 210 and the nut 220 from top to bottom and rotating the other with respect to the other, so that the battery pack 5 can be separated from the replacement vehicle.

In specific implementation, one of the bolt 210 and the nut 220 may be disposed on the battery pack 5, and the other may be disposed on the battery-powered vehicle, according to actual requirements of working conditions. The components connected to the battery change vehicle can be connected in particular to the quick change bracket 2 or the vehicle beam 11 of the battery change vehicle. When the quick-change bracket 2 is connected with the quick-change bracket 2, the quick-change bracket 2 is connected with the vehicle beam 11, so that the bolts 210 or the nuts 220 are connected with the vehicle through the quick-change bracket 2, and when a plurality of bolts 210 or nuts 220 are arranged, the quick-change bracket 2 can be integrated, and the quick-change bracket is integrally arranged on the vehicle beam 11 of the vehicle, so that the installation efficiency can be improved. Alternatively, the bolt 210 or the nut 220 is directly mounted on the vehicle beam 11 of the battery-powered 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, a bolt 210 is provided as a locking piece 51 on the battery pack 5, and a nut 220 is provided on the quick-change bracket 2 or the roof rail 11. The battery pack 5 is locked and connected to the quick-change bracket 2 or the vehicle beam 11 by being connected to the nut 220 through the bolt 210. During locking, the bolt 210 can be driven by external equipment to move from bottom to top, and simultaneously rotate relative to the nut 220, so that the locking of the bolt 210 and the nut 220 is realized, and the battery pack 5 and the electric vehicle are further locked. During unlocking, the external device drives the bolt 210 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 unlocking of the battery pack 5 is realized.

Specifically, fig. 12 shows a schematic structural diagram of the battery pack 5, where the battery pack 5 has a plurality of bolts 210, the bolts 210 at the left end and the middle are sleeved with nuts 220 connected to the battery-powered vehicle, and the bolts 210 at the right end are not sleeved with 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 in the vertical direction and penetrates the upper and lower surfaces of the battery pack 5, so that an external power exchanging device can operate the bolts 210 to achieve unlocking and locking.

During locking, the nut 220 can be driven by external equipment to move from bottom to top, and simultaneously rotate relative to the bolt 210, so that the nut 220 and the bolt 210 are locked, and the battery pack 5 and the electric vehicle are locked. During unlocking, the nut 220 is driven by external equipment 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 unlocking of the battery pack 5 is realized.

Further, the structure of the locking mode of the bolt 210 may be referred to as 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 by a driving rod in a threaded manner and abuts against the steel column and drives the steel column to move out of the opening, and locking is achieved by the steel column being clamped or abutted against the inner wall of the first lock body, so that locking connection between the bolt 210 and the nut 220 is achieved. When unlocking, the driving rod moves downwards in a threaded mode, the steel column is contracted inwards through the opening, and therefore unlocking is achieved. Of course, the specific structure of the locking mode of the bolt 210 is not limited to the structure of the patent grant publication CN 212950243U, but may be other structures, and is not limited to the specific structure.

As a preferred embodiment, the bolt 210 or the nut 220 is provided at a middle position of the battery pack 5, and the bolt 210 or the nut 220 penetrates the battery pack 5. The arrangement is that the locking point or the locking position of the battery pack on the quick-change bracket 2 or the vehicle beam is positioned at the middle position of the battery pack, so that the stability of the battery pack after being mounted is more facilitated. In addition, the bolt or the nut penetrates through the battery pack, so that the bolt or the nut is matched with the external unlocking device, and the battery pack is unlocked conveniently.

As a preferred embodiment, the bolt 210 or the nut 220 is floatingly coupled to the battery pack 5. The floating connection can reduce the torque or vibration of the battery pack 5 when the replacement vehicle is subjected to steering torque or jolt, and further reduce the influence of the torque or vibration on the battery pack 5.

As 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 vehicle when the vehicle is subjected to steering torsion or jolt from being transmitted to the quick-change bracket 2 or the vehicle beam 11, so that the influence of the torque or vibration on the quick-change bracket 2 or the vehicle beam 11 is reduced.

The locking mechanism 211 further comprises a fixed base (not shown in the figure), to which the nut 220 is connected by floating, thereby achieving a floating connection with the quick-change bracket 2 or the vehicle beam 11.

As a preferred embodiment, the structure of the bolt lock also includes anti-rotation stop structure (not shown) coupled 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 generated when the bolt 210 is matched with 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 and anti-return structure achieves the purpose of limiting the relative rotation of the bolt 210 and the nut 220 through one of a ratchet, a pawl, an expanding bead, a clamping and a meshing.

As shown in fig. 8, the bolt 210 includes a threaded portion 711 and a connecting portion 712, the threaded portion 711 is in threaded connection with the nut 220, so as to ensure connection firmness, and the connecting portion 712 is connected with an anti-rotation and anti-back structure, so as to prevent the bolt 210 from rotating relative to the nut 220, ensure 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 anti-rotation anti-back structure includes a first anti-rotation member 91 and a second anti-rotation member 92, 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 is connected to the connection portion 712 of the bolt 210, and the second anti-rotation member 92 is used for switching between a first position and a second position under the action of an external force. When the second rotation preventing member 92 is located at the first position, the outer peripheral wall of the second rotation preventing member 92 is connected with the inner Zhou Bika of the first rotation preventing member 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.

The first anti-rotation member 91 plays a role in connection and positioning, and applies a force along the axial direction of the bolt 210 to the second anti-rotation member 92 through the battery changing device, so that the second anti-rotation member 92 can be moved from the first position to the second position, the second anti-rotation member 92 positioned at the second position can freely rotate and drive the bolt 210 connected with the second anti-rotation member 92 to rotate, the bolt 210 and the nut 220 are locked or unlocked, after the locking or unlocking operation is completed, the second anti-rotation member 92 is driven from the second position to the first position, at the moment, the second anti-rotation member 92 is clamped with the first anti-rotation member 91, the position of the second anti-rotation member 92 is fixed, and the bolt 210 cannot rotate any more.

In other alternative embodiments, the first anti-rotation member 91 is also secured to the battery change vehicle when the locking member 51 is mounted to the battery change vehicle.

As shown in fig. 9, the first anti-rotation member 91 in the present embodiment includes an inner ring gear 911, and the second anti-rotation member 92 includes an outer ring gear 921, and the inner ring gear 911 is fitted around the outer periphery of the outer ring gear 921. When the second rotation preventing member 92 is located at the first position, the gear teeth of the ring gear 911 are engaged with the gear teeth of the outer ring gear 921, the engagement between the first rotation preventing member 91 and the second rotation preventing member 92 is achieved by the engagement between the ring gear 911 and the outer ring gear 921, and the rotation of the bolt 210 is restricted by the first rotation preventing member 91 restricting the rotation of the second rotation preventing 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 adapted to the shape of the inner straight teeth 9111, so that the outer straight teeth 9211 are clamped with the inner straight teeth 9111.

In other alternative embodiments, the teeth of the ring gear 911 and the outer ring gear 921 may have other shapes such as helical teeth in addition to the straight tooth structure, and it is sufficient that the ring gear 911 restricts the circumferential rotation of the outer ring gear 921.

In other alternative embodiments, external threads may be further provided on the outer circumferential surface of the ring gear 911 to enable connection of 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 radially inward of the ring gear 911 from an inner peripheral wall of the ring gear 911. When the second rotation preventing member 92 is located at the first position, an end of the second rotation preventing member 92 remote from the bolt 210 abuts against the inner flange 9112. The inner flange 9112 is configured to limit movement of the second rotation preventing member 92 within the first rotation preventing member 91, so as to prevent the second rotation preventing member 92 from slipping off the end of the first rotation preventing member 91 away from the nut 220.

Specifically, as shown in fig. 9 to 11, the inner flange 9112 in this embodiment is located at the axial middle of the inner peripheral wall of the ring gear 911, the outer flange 9212 is formed on the outer peripheral wall of the outer ring gear 921, the outer straight teeth 9211 are located at 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, and the outer gear ring 921 is coupled to the tightening sleeve 922, and the second rotation preventing member 92 is coupled 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 inner peripheral wall of outer ring gear 921 and the outer peripheral wall of tightening cover 922 respectively to realize outer ring gear 921 and the joint of tightening cover 922, further still can realize tightening cover 922 and rotate in the circumference, guarantee the stability of connection. The connection portion 712 of the bolt 210 includes a first connection section 7121 and a second connection section 7122, the second connection section 7122 being located at a side of the first connection section 7121 remote from the threaded portion 711, the second connection section 7122 extending in an axial direction of the bolt 210 and extending into the tightening sleeve 922 to be connected with the tightening sleeve 922. The outer peripheral wall of the second connecting section 7122 and the inner peripheral wall of the tightening sleeve 922 are respectively provided with a second protruding portion 7123 and a second recessed portion 9222 which are matched with each other, so that the locking of the bolt 210 and the tightening sleeve 922 is realized, the rotation of the bolt 210 in the circumferential direction can be further prevented, and the stability of connection is ensured.

The first protruding portion in the present 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 protruding 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 peripheral wall of the outer ring gear 921, the first protrusion is provided on the outer peripheral wall of the tightening sleeve 922, the second recess 9222 is provided on the outer peripheral wall of the second connection section 7122, and the second protrusion 7123 is provided on the inner peripheral wall of the tightening sleeve 922.

It should be noted that in alternative embodiments, the rotation stop structure may be correspondingly configured to be coupled to the nut 220. At this time, the first rotation preventing member 91 is sleeved on the outer peripheral side of the second rotation preventing member 92, the first rotation preventing member 91 is connected to the battery pack 5, and the second rotation preventing member 92 needs to be correspondingly connected to the nut 220, and the second rotation preventing 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 member 92 is located at the first position, the outer peripheral wall of the second rotation preventing member 92 is connected with the inner Zhou Bika of the first rotation preventing member 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 or the nut 220.

As shown in fig. 8, the locking member 51 further includes a reset member 74 and a lock housing 73, and the first rotation preventing member 91, the second rotation preventing member 92 and the reset member 74 are disposed in the lock housing 73, and the threaded portion 711 of the bolt 210 may extend out of the lock housing 73 to cooperate with the nut 220. Both ends of the reset member 74 are respectively abutted against the lock housing 73 and the second rotation preventing member 92, and the reset member is used for applying a force to the second rotation preventing member 92 to reset the second rotation preventing member 92 from the second position to the first position. When the second rotation preventing member 92 moves along the axial direction of the bolt 210 toward the direction approaching the nut 220, the reset member 74 is pressed and generates a compression displacement, and after the locking or unlocking of the bolt 210 and the nut 220 is completed by the second rotation preventing member 92, the second rotation preventing member 92 is reset to the first position and is clamped with the first rotation preventing member 91 under the action of the restoring force of the elastic member, so that the rotation preventing function of the bolt 210 is realized.

The return element 74 in this embodiment is a spring, and in other alternative embodiments, the return element 74 may be another elastic member capable of performing the above-described function.

The following is a brief description of the locking and unlocking process of the battery pack 5 and the quick-change bracket 2 based on the specific mechanism of the locking device in the above.

During the locking process, the battery changing device pushes the second anti-rotation member 92 to move from the first position to the second position to disengage from the first anti-rotation member 91, and the spring is in a compressed state. After the second rotation preventing member 92 is completely disengaged, the rotation of the bolt 210 is achieved by rotating the second rotation preventing member 92, thereby achieving the connection of the bolt 210 and the nut 220. After the bolt 210 and the nut 220 are locked, the force applied to the second rotation preventing member 92 and separated from the first rotation preventing member 91 is removed, the second rotation preventing member 92 is reset to the first position from the second position under the action of the spring, and the first rotation preventing member 91 can limit the circumferential rotation of the second rotation preventing member 92, so that the axial rotation of the bolt 210 is limited, and the locking and anti-loose function is realized.

During unlocking, the battery changing device pushes the second anti-rotation member 92 to move from the first position to the second position to disengage from the first anti-rotation member 91, and the spring is in a compressed state. After the second rotation preventing member 92 is completely separated, the rotation of the bolt 210 is achieved by rotating the second rotation preventing member 92, thereby separating the bolt 210 from the nut 220.

Wherein at least part of the battery pack 5 is located below the vehicle beam 11, as shown in fig. 1. Specifically, the battery pack 5 may be located 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 structure of the battery pack 5 is flat, so that the manufacturing of the battery pack 5 is facilitated.

In other embodiments, the battery pack 5 may also utilize a space between the vehicle beams 11 or spaces on both sides of the vehicle beams 11, i.e., the upper portion of the battery pack 5 is raised upward and located between the vehicle beams 11 of the battery change vehicle and at least one of the two sides of the battery change vehicle or the upper portion of the battery pack 5 is located between the vehicle beams 11 of the battery change vehicle or at least one of the two sides of the battery change vehicle.

When the upper surface of the battery pack 5 is positioned below the vehicle beam 11, the outer surface structure of the battery pack 5 is flat, so that the battery pack 5 is convenient to manufacture; when the upper part of the battery pack 5 is positioned between the vehicle beams 11, at least one of one side and two sides, the space between the vehicle beams 11 and/or the space at the side is fully utilized, the whole volume of the battery pack 5 is lifted, so that the power supply capacity of the battery pack 5 is improved, or the longitudinal height of the battery pack 5 can be reduced, the vertical distance between the bottom of the battery pack 5 and the ground is increased, and a sufficient height space is reserved for the battery pack 5 replacement operation of the power exchange equipment under the same power supply capacity.

In this embodiment, as shown in fig. 1, the quick-change assembly 10 further includes a quick-change bracket 2 disposed on a beam 11 of the battery-change vehicle, and the battery packs 5 are detachably connected to the quick-change bracket 2, and along the width direction of the battery-change vehicle, a plurality of locking members 51 are disposed on the side wall of each battery pack 5. The quick-change bracket 2 is provided with a locking mechanism 211, and the locking mechanism 211 and the locking piece 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. Wherein, battery package detachably connects in quick change support 2 of trading the electric vehicle, is equipped with a plurality of locking pieces 51 along trading the width direction of electric vehicle on the battery package 5, and a plurality of locking pieces 51 can increase the tie point of battery package 5 and quick change support 2 to reduce the shear stress that receives of single tie point department, make the connection between battery package 5 and quick change support 2 more reliable and more stable, improved the connection reliability between quick change assembly 10 and the quick change support 2.

In other preferred embodiments, as shown in fig. 2, 12 and 13, the side walls of both sides of each battery pack 5 are provided with locking members 51 along the width direction of the battery change vehicle. The locking pieces 51 are arranged on two sides of the battery pack 5, so that two sides of the long side of the battery pack 5 can be connected with the quick-change bracket 2, and the reliability of connection between the battery pack 5 and the vehicle beam 11 is further improved.

In other preferred embodiments, the locking pieces 51 of the battery pack 5 on both side walls in the width direction of the battery exchange vehicle are offset from each other in the width direction of the battery exchange vehicle. Wherein, the locking pieces 51 are staggered on two sides of the battery packs, which can allow the locking pieces between two adjacent battery packs 5 and the locking mechanism 211 to be overlapped with each other to a certain extent in the length direction of the vehicle, thus reducing the space occupied by the whole quick-change assembly in the length direction of the vehicle.

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

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

As shown in fig. 2, the battery pack 5 includes a case 72 and a locking piece 51 provided at a side of the case 72, the locking piece 51 being mounted to a side of the case by a locking piece mounting plate 71;

when the battery pack 5 is locked to the battery change vehicle, the locking member of the battery pack 5 moves from bottom to top and is locked to the locking mechanism 211 of the battery change vehicle by a T-shaped rotary locking manner.

In the embodiment, the locking member 51 is arranged at the side of the box 72, so that the locking member 51 at the end of the battery pack 5 positioned below and the vehicle end locking mechanism 211 of the battery-changing vehicle positioned above can be positioned at a position spatially opposite to each other, thereby realizing a locking and unlocking mode of directly upwards and downwards and improving the locking and unlocking efficiency; the provision of the locking member 51 at the side portion of the casing 72 more effectively reduces the shock of the battery pack 5 at the side portion during running, than in the case where the locking member 51 is provided at or near the bottom of the casing 72.

In this embodiment, as shown in fig. 1 and 5, the quick-change bracket 2 includes a left bracket 31 and a right bracket 32 that are symmetrically disposed, the left bracket 31 and the right bracket 32 are respectively connected to the side walls of the corresponding sides of the vehicle beam 11, and the locking member 51 and the locking mechanism 211 are located on both sides of the vehicle beam 11 along the length direction of the battery-change vehicle. Through adopting above-mentioned structure, be connected battery package 5 and quick change support 2 in the outside of roof beam 11, the locking piece 51 is convenient simultaneously with being connected of locking mechanism 211 also is convenient for dismantle between battery package 5 and the quick change support 2, and left socle 31 and right socle 32 symmetry set up, are favorable to keeping vehicle focus balanced, prevent that the vehicle from taking place to turn on one's side at the unstable turn in-process.

In the present embodiment, a buffer member 20 is further provided between the quick-change bracket 2 and the battery pack 5; the buffer member 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 the length direction and/or the width direction of the battery exchange vehicle, so as to slow down the shaking of the battery pack 5 during the running of the battery exchange vehicle, and avoid the impact on the quick-change bracket 2.

In this embodiment, as shown in fig. 12, the quick-change assembly 10 further includes a battery-side electrical connector 100 and a car-side electrical connector, the battery-side electrical connector 100 is disposed on the battery pack 5, and the car-side electrical connector is disposed on the quick-change bracket 2; after the battery pack 5 is mounted on the quick-change bracket 2, the battery end electric connector 100 is electrically communicated with the vehicle end electric connector, wherein the electric connection between the battery pack 5 and the vehicle replacement vehicle can be realized through the battery end electric connector 100 and the vehicle end electric connector, so that the battery pack 5 supplies power to the vehicle replacement vehicle.

In other preferred embodiments, the battery-side electrical connector 100 is disposed at the top of the battery pack 5, the car-side electrical connector is disposed on the lower surface of the quick-change bracket 2, and the battery-side electrical connector 100 is in butt-joint communication with the car-side electrical connector in the vertical direction. By adopting the above structure, when the locking member 51 moves along the vertical direction and is connected with the locking mechanism 211, the battery-side electric connector 100 can be synchronously connected with the vehicle-side electric connector along the vertical direction, so that the electric connection between the battery pack 5 and the vehicle replacement is completed, the lifting and the electric connection of the battery pack 5 are completed in one process, and the installation efficiency of the battery pack 5 is improved.

In this embodiment, along the width direction of the battery-side electric 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-side electric connector to rotate, so that the vehicle-side electric connector is connected to or separated from the battery-side electric connector 100. Wherein, 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, the electric connection of the battery pack 5 and the battery-changing vehicle does not need to be provided with an additional driving source, so that the running cost required by the electric connection of the battery pack 5 and the battery-changing 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 as the battery pack 5 moves vertically, the rotating portion 3001 being rotatably connected to the quick-change bracket 2; the rotating portion 3001 is connected to the driving portion 3002, and the battery pack 5 moves upward to drive the driving portion 3002 to move upward, so that the rotating portion 3001 is driven to rotate toward the direction in which the electrical connector of the battery pack 5 is located, so that the vehicle-end electrical connector rotates along the direction approaching the battery-end electrical connector 100 and opposite to the battery-end electrical connector 100. Wherein, the driving part 3002 can move along with the movement of the battery pack 5, when the battery pack 5 moves upwards under the drive of the battery exchange device, the driving part 3002 moves along with the upward movement of the battery pack 5, the driving part 3002 rotates to drive the rotating part 3001 to rotate, and 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 assembled and disassembled, 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-side electrical connector 100, so that the battery-side electrical connector 100 is disconnected from the vehicle-side electrical connector.

Specifically, as shown in fig. 7, the driving portion 3002 includes a rack 30021 vertically slidably connected to the quick-change bracket 2. The rotating part 3001 includes a rotating plate 30022 for mounting a car end electric connector, a rotating shaft 30023 fixedly connected to the rotating plate 30022, and a gear 30024 fitted over and fixedly connected to the rotating shaft 30023, the rotating plate 30022 being rotatably connected to a side portion of the quick-change bracket 2 through the rotating shaft 30023; the rack 30021 and the gear 30024 are engaged and driven, and the rack 30021 moves in the vertical direction along with the battery pack 5 to drive the gear 30024 to rotate, and the rotation of the gear 30024 drives the rotation portion 3001 to rotate toward the battery-side electrical connector 100. The gear 30024 and the rack 30021 are arranged at a position close to the top of the battery pack 5, the size of the gear 30024 and the size of the rack 30021 are reduced, the structure of the position adjusting mechanism 300 is more compact, the rack 30021 drives the gear 30024 to rotate, the rotating plate 30022 provided with the vehicle-end electric connector rotates towards the quick-change bracket 2, the reliability and stability of transmission are ensured, the gear 30024 is enabled to rotate in the rotating process, the vehicle-end electric connector is close to the battery-end electric connector 100 until the gear 30024 is electrically connected, the gear 30024 and the gear 30021 of the position adjusting mechanism 300 can be purchased externally without die-sinking and manufacturing of the vehicle-end electric connector, and cost is reduced.

The rack 30021 is arranged on the quick-change bracket 2, so that the rack 30021 is prevented from being arranged on the battery pack 5, the structure of the battery pack 5 is complex, and the rack 30021 is prevented from being exposed in the external space and worn out due to the fact that the battery pack 5 is transferred between the battery-powered vehicle and the charging equipment.

In this embodiment, as shown in fig. 5, at least two rotating seats 301 are disposed at the end of the quick-change bracket 2 near the vehicle-end electrical connector, and the rotating shaft 30023 is disposed in the rotating seats 301 in a penetrating manner and can rotate along its own axis. Wherein, through rotating the seat 301 and realizing the rotation connection of rotation shaft 30023 and quick change support 2, through setting up two at least rotation seats 301 and realizing the multiple spot support to rotation shaft 30023, guarantee that rotation shaft 30023 is rotated around the same axis all the time when rotating, reduced the fluctuation that the axis rotated the in-process and produced, improved rotation shaft 30023 pivoted stability for car end electric connector and battery end electric connector 100 accomplish the electricity smoothly and connect.

In this embodiment, a guide block 33 is disposed on one 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 disposed in the guide groove 35 and can move along the vertical direction. Wherein, the arrangement of the guide groove 35 makes the vertical movement of the gear smoother; by the sliding fit of the guide rail 34 and the guide block 33, the friction resistance applied to the rack 30021 in the moving process in the vertical direction is smaller, and the movement is smoother, so that the distance of upward movement of the battery pack 5 is equal to the distance of upward movement of the rack 30021.

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

In this embodiment, the left bracket 31 further includes a cross plate 312, and the cross plate 312 is connected between the first connection plate 310 and the mounting plate 311 and is located above the battery pack 5. Wherein, setting up diaphragm 312 can promote the structural strength of quick change support 2, prevents 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 limiting seat 313 is disposed above the transverse plate 312 corresponding to the top of the rack 30021, and the rack 30021 is elastically connected to the limiting seat 313 through an elastic member 314. The guide rail 34 guides the rack 30021 in a sliding manner in a vertical direction through the guide groove 35 and the guide block 33, the elastic piece 314 prevents the rack 30021 from falling from the quick-change bracket 2, and the elastic piece 314 can act on the rack 30021 to apply a downward force to the rack 30021, so that the rotating plate 30022 is kept in an upturned state.

In this embodiment, the limiting base 313 has an inverted U-shaped plate structure, the lower end of the limiting base 313 is connected to the upper end surface of the transverse plate 312, and part of the rack 30021 and the guide rail 34 extend into the opening of the limiting base 313. Wherein, the openings of the partial racks 30021 and the guide rails 34 extending into the limiting seat 313 can protect the tops of the racks 30021 and the guide rails 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 limiting seat 313 through the compression spring 3140. The elastic member 314 is a compression spring 3140, which is low in cost, and the rack 30021 is connected to the top inner wall of the limiting seat 313 through the compression spring 3140, so that the rack 30021 provides a certain elastic force in the process of being far away from the top inner wall of the limiting seat 313. The elastic piece 314 can apply downward elastic restoring force, so that the rack 30021 moves downwards, and further drives the vehicle-end electric connector to move towards a direction away from the battery-end electric connector 100, so that the two electric connectors are separated, and the battery pack 5 is convenient to detach.

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

The present embodiment also provides a battery-changing vehicle including the quick-change assembly 10 described above. In this embodiment, the entire schematic diagram of the battery-powered vehicle is not shown, and only the vehicle beam 11 (as shown in fig. 1) is shown.

The plurality of battery packs 5 of the quick-change assembly 10 are arranged along the length direction (X direction) of the battery-change vehicle, so that the mass of each battery pack 5 is smaller while the required electric quantity of the battery-change vehicle is ensured. Each battery pack 5 is individually locked to the bottom of the vehicle beam 11 of the electric vehicle in the vertical direction (Z direction) from bottom to top by means of a screw lock.

In other alternative embodiments, the plurality of battery packs 5 may be arranged in the same direction as the length direction of the non-battery-change vehicle, for example, the width direction (Y direction) of the battery-change vehicle, so as to facilitate the mounting and dismounting of the battery packs 5.

In this embodiment, the battery-powered vehicle is an electric truck. Because the electric truck is heavy and consumes more electric energy in unit mileage, a battery pack 5 with larger capacity is placed in a limited space between two beams 11 of the electric truck, and the electric truck adopts the battery pack 5, so that the cruising ability of the electric truck can be improved to the greatest extent; meanwhile, under the condition of the same cruising ability, the battery packs 5 of the electric truck adopt the mode that the plurality of battery packs 5 are distributed along the length direction of the vehicle body, the single battery pack 5 is easier to replace, if the single battery pack 5 is damaged, other battery packs 5 can continuously supply power for the electric vehicle, only the damaged battery pack 5 is required to be replaced independently, the maintenance cost of the battery packs 5 when damaged is reduced, and the reliability of the power supply of the battery packs 5 is improved. The battery pack in this embodiment adopts X to (vehicle length direction) branch case, compares in whole package and Y to branch case (vehicle width direction), and X is to branch case be difficult for producing the unbalanced load at the power conversion in-process, also can not cause the unbalanced load of vehicle under the circumstances of only connecting partial battery pack moreover, and the mode of use is more nimble, and the suitability is better.

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

Example 2

The present embodiment provides another quick-change assembly, and the structure of the quick-change assembly in this embodiment is substantially the same as that of the quick-change assembly in embodiment 1, except for the structure of the quick-change bracket. Wherein like reference numerals denote like elements in the present embodiment as in embodiment 1.

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

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 a locking piece mounting plate 71 on both side walls along the width direction of the battery-change vehicle, and the locking piece 51 is provided on the side wall of the battery pack 5 by being mounted on the locking piece mounting plate 71, and the locking piece mounting plate 71 is spaced apart from the top surface of the battery pack 5 by a predetermined distance. By attaching the locking member 51 to the locking member attachment plate 71, the locking member 51 is prevented from affecting the regularity of the battery pack 5, and the shape and the regularity of the battery pack 5 are not affected. In addition, the mounting position of the locking member mounting plate 71 is spaced apart from the top of the battery pack by a predetermined distance, so that the stability of the battery pack when mounted on the battery-powered vehicle can be improved.

The quick-change bracket 2 is provided with a recess 7 at the locking mechanism 211 corresponding to the locking piece mounting plate 71, the recess 7 being formed by the downward extension of the quick-change bracket 2 and surrounding at least part of the battery pack 5. The recess 7 surrounds at least part of the battery pack 5, and can limit the battery pack 5 to a certain extent through the effect of the recess 7.

In the preferred embodiment, a buffer structure is arranged between the concave part 7 and the locking piece mounting plate 71, and the buffer structure can slow down the shaking of the battery pack in the running process of the vehicle, so that the impact on the quick-change bracket and the vehicle beam is avoided.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the 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 principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

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

2. The quick change assembly of claim 1, wherein the bolt locking means comprises a locking member comprising a bolt and a locking mechanism comprising a nut;

3. The quick change assembly of 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; or,

4. A quick change assembly according to claim 3 wherein the bolt or nut is provided at a central location in the battery pack and the bolt or nut extends through the battery pack.

5. A quick change assembly according to claim 3 wherein said bolt or nut is floatingly connected to said battery pack.

6. A quick change assembly according to claim 3 wherein said bolt or nut is floatingly connected to said quick change bracket or said beam.

7. The quick-change assembly of claim 2, wherein the locking mechanism further comprises a fixed base, the nut being floatingly coupled to the fixed base.

8. The quick change assembly of claim 2, wherein the bolt includes a threaded portion and a connecting portion, the threaded portion being threaded and adapted to threadably connect with the nut.

9. The quick change assembly of claim 8, wherein the locking member further comprises a lock housing, and the bolt is disposed in the lock housing and is vertically liftable or rotatable relative to the lock housing.

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

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

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

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

14. The quick-change assembly of claim 11, wherein 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 being provided with a recess, the other being provided with a projection, the recess being engaged with the projection.

15. The quick change assembly of claim 11, wherein the locking member further comprises a lock housing, the bolt being disposed within the lock housing and being vertically liftable or rotatable relative to the lock housing;

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

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

18. The quick-change assembly of any one of claims 1-15, further comprising a quick-change bracket provided on a vehicle beam of the battery-powered vehicle, the battery pack being detachably connected to the quick-change bracket by a screw-lock;

19. The quick change assembly of claim 18 wherein the battery packs have locking members on both side walls along the width of the battery change vehicle that are offset from each other in the width of the battery change vehicle.

20. The quick-change assembly of claim 18, wherein the quick-change brackets comprise symmetrically disposed left and right brackets respectively connected to side walls of corresponding sides of the vehicle beam;

21. The quick change assembly of claim 20, wherein the quick change bracket further comprises a connecting bracket positioned below the vehicle beam and connecting the left bracket and the right bracket;

the locking mechanism is further arranged on the connecting frame.

22. The quick change assembly of claim 21 wherein the battery pack is connected to a locking member mounting plate on both side walls in a width direction of the battery pack, the locking member being disposed on the side wall of the battery pack by being mounted to the locking member mounting plate, the locking member mounting plate being spaced a predetermined distance from a top surface of the battery pack.

23. The quick-change assembly of claim 22, wherein the quick-change bracket is provided with a recess at the locking mechanism corresponding to the locking member 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 of claim 23, wherein a buffer structure is provided between the recess and the locking member mounting plate.

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

26. The quick-change assembly of claim 20, further comprising a battery-side electrical connector disposed on the battery pack and a car-side electrical connector disposed on the quick-change bracket;

27. The quick change assembly of claim 26, wherein the battery end electrical connector is disposed at a top portion of the battery pack, the car end electrical connector is disposed at a lower surface of the quick change bracket, and the battery end electrical connector is in mating communication with the car end electrical connector in a vertical direction.

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

29. The quick change assembly of claim 28, wherein the position adjustment mechanism comprises a rotating portion to which the vehicle-end electrical connector is mounted and a driving portion that moves as the battery pack moves vertically, the rotating portion being rotatably connected to the quick change bracket;

30. The quick change assembly of claim 29, wherein the drive portion comprises a rack vertically slidably coupled to the quick change bracket;

31. The quick-change assembly of claim 30, wherein the end of the quick-change bracket adjacent to the vehicle-end electrical connector is provided with at least two rotating seats, and the rotating shaft is disposed in the rotating seats in a penetrating manner and can rotate along the axis of the rotating seat.

32. The quick-change assembly of claim 30, wherein a guide block is disposed on a side of the rack away from the gear, a vertically extending guide rail is disposed on the quick-change bracket, a vertically extending guide slot is disposed on the guide rail, and the guide block is disposed in the guide slot and is movable along the vertical direction.

33. The quick change assembly of claim 32 wherein the left bracket includes a first connection plate connected to the vehicle beam and a vertically disposed mounting plate for mounting the locking mechanism, one end of the mounting plate being connected to the first connection plate and extending in a width direction of the battery powered vehicle such that the locking mechanism is disposed opposite the locking member.

34. The quick change assembly of claim 33, wherein the left bracket further comprises a cross plate coupled between the first coupling plate and the mounting plate and positioned above the battery pack.

35. The quick change assembly of claim 34, wherein the top of the rack extends upwardly through the cross plate, a stop seat is disposed above the top of the cross plate corresponding to the rack, and the rack is elastically connected to the stop seat by an elastic member.

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

37. The quick change assembly of claim 36, wherein the elastic member is a compression spring, and the rack is connected to the top inner wall of the limit seat through the compression spring; and/or the number of the groups of groups,

38. A battery change vehicle comprising a quick change assembly according to any one of claims 1-37.

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