CN218536331U

CN218536331U - Quick-change battery and battery-changing vehicle

Info

Publication number: CN218536331U
Application number: CN202222809305.XU
Authority: CN
Inventors: 张建平; 于新瑞; 褚佳玮; 张小春
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: 2023-02-28
Anticipated expiration: 2032-10-24
Also published as: CN116409131A; CN218577490U; CN116118456A; CN218558544U; CN218558553U; CN116118465A; CN218558545U; CN116001547A; CN219007568U; CN218558554U; CN116039355A; CN218558549U; CN116118467A; CN218805181U; CN116160835A; CN116001549A; CN218536330U; CN116118462A; CN218577491U; CN116118451A

Abstract

The utility model discloses a quick change battery and trade electric vehicle, quick change battery include along a plurality of battery packages that trade the length direction setting of electric vehicle, are equipped with a plurality of locking pieces on every battery package, and each battery package passes through the locking piece along the vertical bottom of independently locking in the automobile body that trades the electric vehicle through bolt locking mode. The utility model discloses can realize installing the battery package on trading the car roof beam below the electric vehicle through the battery package bracket to can trade the electric vehicle bottom and carry out the battery package dismouting, trade the electric cost low, trade the electricity convenient; the single battery pack for quickly replacing the battery is smaller in size and weight, so that the battery pack is convenient to mount, and the requirement on power-replacing equipment is lowered; each battery pack is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the disassembling and assembling flexibility is higher. The bolt locking mode is simple to operate, and the locking reliability is high.

Description

Quick-change battery and battery-changing vehicle

The present patent application claims priority to chinese patent application No. 202210837094.2 filed on 7/15/2022.

Technical Field

The utility model relates to a quick change battery and trade electric vehicle.

Background

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

In the prior art, the vehicle usually adopts a whole battery pack to replace the battery, the weight of a single battery pack is large, the requirement on battery replacement equipment for replacing the battery is high, the use is inflexible, and the whole battery pack needs to be replaced if the battery pack needs to be replaced. These drawbacks are particularly pronounced when the vehicle is a heavy truck.

In addition, for the current clamping type locking structure, in the process of locking the battery pack, the locking shaft generally ascends to the place firstly relative to the locking mechanism and then horizontally advances to the place, namely, the movement process of the battery pack is complex, the requirement on power exchange equipment is high, the locking efficiency of the battery pack is influenced, and further the power exchange efficiency of a vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a quick change battery and trade electric vehicle in order to overcome above-mentioned at least one defect among the prior art.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides a quick change battery, its includes a plurality of battery package that are used for along trading electric vehicle's length direction setting, every be equipped with a plurality of locking pieces on the battery package, each the battery package passes through locking piece along vertical through independent locking of bolt locking mode in trade the bottom of electric vehicle's automobile body.

In the scheme, the battery pack can be mounted on the vehicle beam below the battery replacing vehicle through the battery pack bracket, so that the battery pack can be dismounted from the bottom of the battery replacing vehicle, the battery replacing cost is low, and the battery replacing is convenient; the single battery pack for quickly replacing the battery is smaller in size and weight, so that the battery pack is convenient to mount, and the requirement on power-replacing equipment is lowered; each battery pack is independently locked at the bottom of the vehicle body of the battery replacing vehicle in a bolt locking mode, and the disassembling and assembling flexibility is higher. The bolt locking mode is simple to operate, and the locking reliability is high.

Preferably, the structure of the bolt locking mode comprises a locking mechanism and the locking piece; the locking piece comprises a bolt, and the locking mechanism comprises a nut; or the locking piece comprises a nut, and the locking mechanism comprises a bolt; the bolt and the nut are detachably connected so as to independently lock the battery pack on a quick-change bracket or a vehicle beam of the battery-changing vehicle.

In this scheme, can be according to actual design needs, set up the locking piece on the battery package to include bolt or nut, install the locking mechanical system on quick change support or the car roof beam also similar, set up relatively 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.

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

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

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

In the scheme, the floating connection can reduce the torque or vibration of the battery replacing vehicle when the battery replacing vehicle is subjected to steering distortion or jolt and then is transmitted to the quick-change support or the crossbeam, so that the influence of the torque or the vibration on the quick-change support or the crossbeam is reduced.

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

In this scheme, the setting of unable adjustment base conveniently realizes being connected with corresponding nut and bolt. In addition, the

Preferably, the bolt includes a threaded portion and a connecting portion, and the threaded portion is threaded and adapted to be threadedly coupled to the nut.

In the scheme, the bolt is in threaded connection with the nut through the threaded part, so that the firmness of connection is ensured

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

Preferably, the structure of the bolt locking manner further comprises an anti-rotation retaining structure connected to the bolt and/or the nut to prevent relative rotational movement between the bolt and the nut.

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

Preferably, the anti-rotation retaining structure comprises a first anti-rotation part and a second anti-rotation part;

the first anti-rotation part is sleeved on the outer peripheral side of the second anti-rotation part and connected to the battery pack or the battery replacement vehicle;

the second anti-rotation part is sleeved on the connecting part of the bolt and used for switching between a first position and a second position under the action of external force;

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

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

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

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

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

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

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

Preferably, the connecting portion of the bolt extends into the second anti-rotation member, one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with vertical grooves distributed annularly, and the other one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with protrusions distributed annularly and matched with the vertical grooves.

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

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

the anti-rotation retaining structure also comprises an elastic piece;

the first anti-rotation part, the second anti-rotation part and the elastic part are all arranged in the lock shell;

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

In this scheme, when the second prevents changeing along the bolt axial to when being close to the direction removal of nut, the elastic component pressurized and produce compression displacement, after preventing changeing through the second and accomplishing the locking or the unblock of bolt and nut, under the restoring force effect of elastic component, the second prevents changeing and resets to the primary importance and realizes the joint with first commentaries on classics of preventing, and then no longer rotates, realizes preventing changeing the function to the bolt.

Preferably, a plurality of the locking pieces are arranged at the top of the battery pack, or a plurality of the locking pieces are arranged at two sides of the battery pack along the length direction and/or the width direction of the battery pack.

In this scheme, the locking piece can set up top or the side at the battery package according to actual need. The locking position of the battery pack is arranged on the side portion when the locking piece is arranged on the side face of the battery pack, the space in the height direction of the battery pack is not occupied, and the height between the bottom of a vehicle body of the battery replacing vehicle and the ground is guaranteed. In addition, the locking position is arranged on the side part, so that the operable space is large, and the reliable locking of the battery pack is conveniently realized. The locking piece both can set up the length direction's of wrapping at the battery both sides, also can set up the width direction's of wrapping both sides at the battery, and it is more nimble to set up the position, can adjust according to actual locking or mode of arranging. Especially when the locking piece set up in during the length direction's of battery package both sides, there are more spaces to be used for setting up the locking piece, can set up more locking pieces, are favorable to improving the reliability of locking.

Preferably, along the height direction of the battery pack, the plurality of locking pieces are positioned below the middle part or the middle part of the side surface of the battery pack.

In this scheme, to the mode of vertical connection, the electric connection can set up the top surface at the battery package usually, and when the lock piece was located the side top of battery package, the latched position was located the top, when trading electric vehicle acceleration or emergency brake, was less to the influence at the top of battery package, was favorable to guaranteeing the reliability of locking and electricity connection. When the locking piece is located the side bottom of battery package, trade the release mechanism on the battery equipment and arrange more easily, the unblock is more convenient. And set up the side middle part at the battery package with the locking piece, can compromise convenience etc. that locking reliability and structure were arranged simultaneously.

Preferably, the battery pack comprises a box body and a battery body positioned in the box body; the box is frame construction, in the frame construction with the corresponding position department of lock piece is provided with the mounting panel, be equipped with a plurality of first mounting holes on the mounting panel, be equipped with a plurality of second mounting holes on the lock piece, the lock piece through pass the second mounting hole the connecting piece of first mounting hole can dismantle connect in on the mounting panel.

In this scheme, the box adopts frame construction, can support and protect battery body reliably on reduce cost and weight reduction's basis. The setting of mounting panel both conveniently realizes being connected of lock axle and box, can increase the area of contact of lock piece and box again, is favorable to improving the reliability of being connected of lock axle and battery package. In addition, the installation plate can also play a role in increasing the strength of the box body.

Preferably, the upper surface of the battery pack is provided with a recessed structure, and the mounting plate is arranged on the bottom surface of the recessed structure;

or the mounting plate is arranged on the side surface of the box body.

Preferably, a through hole is formed in the mounting plate and/or the battery pack at a position corresponding to the locking member, and the through hole is used for allowing external unlocking equipment to enter or accommodating an unlocking linkage member.

In the scheme, the external unlocking equipment can extend into the mounting frame through the through hole and act on the corresponding structure of the locking piece to realize unlocking and locking; or an unlocking linkage piece is arranged in the through hole and used for linkage of the external unlocking equipment and the corresponding structure of the locking piece, and the unlocking linkage piece can be integrated with the corresponding structure of the locking piece or connected with the corresponding structure of the locking piece only in unlocking and locking.

Preferably, the battery pack is further provided with an electric connector, and the electric connector is arranged at the middle position of the top of the battery pack.

In this scheme, adopt above-mentioned structure setting, be convenient for realize that electric connector carries out the electricity with car end electric connector and is connected, also be convenient for lay wire, with electric connector setting rocking minimum battery package top intermediate position department for the electricity is connected more reliably. The middle position is also the position with the minimum shaking amplitude, and the electric connector is arranged at the position, so that the connection is more reliable.

The utility model also provides a trade electric vehicle, its characterized in that, it include above-mentioned quick change battery with the automobile body.

Preferably, the vehicle body of the battery replacement vehicle is provided with a vehicle beam, the battery pack is arranged below the vehicle beam, or part of the battery pack extends upwards and protrudes out of the bottom of the vehicle beam; the car beam is a car body longitudinal beam.

In this scheme, when only a part of battery package is located the below of car roof beam, can be that the part that lies in the outside of two car roof beams in the battery package is protrusion in the bottom of car roof beam, also can be that the part that lies in between two car roof beams in the battery package is protrusion in the bottom of car roof beam, and the design is more nimble, can adapt to multiple different design demands.

Preferably, the vehicle body is provided with two vehicle beams which are arranged in parallel and spaced, and the battery pack part extends upwards and protrudes out of the bottom of the two vehicle beams from the outer sides of the two vehicle beams and/or between the two vehicle beams.

Preferably, two adjacent battery packs are arranged at intervals;

and/or a buffer piece is arranged between every two adjacent battery packs.

In this scheme, adjacent battery package interval sets up, can prevent to bump or rub between the battery package, is favorable to protecting the battery package, improves the life of battery package. In addition, the battery packs are spaced, and the battery packs can be conveniently replaced by the battery replacing equipment. Be provided with the bolster between the adjacent battery package, can prevent to take place the rigidity collision between the battery package, also be favorable to protecting the battery package, improve the life of battery package.

Preferably, the locking piece comprises a locking shaft, and the locking shaft is a bolt;

trade electric vehicle still including set up in trade the locking mechanism of the bottom of electric vehicle's automobile body, locking mechanism includes locking portion, locking portion is the nut, locking portion has the confession the passageway that the lock axle of locking piece got into, and can make the lock axle gets into vertical rebound to latched position behind the passageway, locking portion locks the lock axle that is located latched position.

In this scheme, to the in-process that moves to latched position after axle body entering passageway, the axle body all is located the passageway of locking portion, is favorable to guaranteeing the stability of lock axle at the locking in-process. In addition, after the lock shaft of the battery pack enters the channel, the battery pack vertically moves upwards until the battery pack is locked at the locking position, the movement process of the battery pack is simple, and the battery replacement efficiency is improved.

Preferably, the battery replacement vehicle further comprises a guide mechanism, wherein the guide mechanism comprises a guide piece arranged on the battery pack and a guide matching piece arranged at the bottom of the vehicle body of the battery replacement vehicle and matched with the guide piece;

the guide piece is at least arranged on the side face of the battery pack where the locking piece is located; the guide piece and the locking piece are arranged at intervals on the side face, where the locking piece is located, of the battery pack;

when the battery pack is connected with the battery replacement vehicle, the guide piece and the guide fitting piece are connected with the locking mechanism in a matched mode before the locking piece is connected with the locking mechanism in a matched mode.

In the scheme, the guide mechanism is arranged, so that the quick-change assembly and the battery-change vehicle can be conveniently installed, and the installation reliability can be ensured; the guide piece and the locking piece are arranged at intervals, so that the connection process of the battery pack is more stable; when the battery pack is connected, the guiding is prior to the locking, so that the locking is smoother.

Preferably, the battery replacement vehicle further comprises a quick-change bracket, the quick-change bracket is connected to a vehicle body of the battery replacement vehicle, and the locking mechanism is mounted on the quick-change bracket.

In the scheme, the battery pack is connected to the vehicle body of the battery replacing vehicle through the quick-change bracket, so that the battery replacing vehicle is convenient to connect and is favorable for protecting the battery pack.

Preferably, the quick-change bracket is an integral quick-change bracket, and the integral quick-change bracket is provided with a plurality of corresponding battery pack accommodating areas corresponding to the battery packs; or the quick-change bracket comprises a plurality of split brackets which are respectively connected to the vehicle body and correspond to the battery packs one to one.

In this scheme, according to actual design demand, can set up the quick change support into integral quick change support, also can set up the quick change support into split type support. Wherein, integral support can wholly hold a plurality of battery packages, easy to assemble and dismantlement. The split type support corresponds to a single battery pack, and when a certain battery pack needs to be replaced or maintained, only the corresponding single battery pack needs to be detached.

Preferably, the battery replacement vehicle is an electric truck.

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

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

the bolt locking mode is simple to operate, and the locking reliability is high. The locking piece is arranged at the top of the box body, so that the locking piece at the battery pack end positioned below and the vehicle end locking mechanism of the battery replacing vehicle positioned above can be in opposite positions in space, the locking and unlocking modes of the battery replacing vehicle in a straight-up and straight-down mode are realized, and the locking and unlocking efficiency is improved; establish the lock piece at the top of box for establishing the lock piece at the bottom half or be close to the condition of bottom, reduce the vibration impact that the in-process battery package received at the top of traveling more effectively.

Drawings

Fig. 1 is a schematic structural diagram of an electric vehicle provided in embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a top view angle of a box body provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a bottom view angle of a box body according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of the buffer and the limiting structure provided in embodiment 1 of the present invention.

Fig. 5 is a schematic perspective view of an elastic member according to embodiment 1 of the present invention.

Fig. 6 is a front view of an elastic member according to embodiment 1 of the present invention.

Fig. 7 is a side view of an elastic member according to embodiment 1 of the present invention.

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

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

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

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

Fig. 12 is a schematic structural diagram of a top view angle of a box provided in embodiment 2 of the present invention.

Fig. 13 is a schematic diagram of a partial structure of a quick-change battery provided in embodiment 2 of the present invention.

Description of the reference numerals

The battery pack comprises a battery pack 1, a box body 2, a long side 111, a short side 112, a step 22, a step bottom 221, a step side wall 222, a through hole 23 and a mounting plate 3;

the locking piece 200, the bolt 210, the first connecting section 7121, the second connecting section 7122, the second protruding part 7123, the threaded part 711, the connecting part 712, the elastic piece 72 and the lock shell 73;

the nut 220, the locking mechanism 300 and the lock holder 310;

a first rotation prevention piece 91, an inner gear ring 911, an inner straight tooth 9111, an inner flange 9112, a second rotation prevention piece 92, an outer gear ring 921, an outer straight tooth 9211, an outer flange 9212, a tightening sleeve 922, a first recessed portion 9221, and a second recessed portion 9222;

the buffer 20, the limiting member 101, the elastic member 201, the mounting portion 203, the mounting hole 204, the protrusion portion 2111, the upper inclined surface 2112, the lower inclined surface 2113, the left inclined surface 2114, the right inclined surface 2115, the free end 218, the engaging portion 219, the battery end electrical connector 4, the battery end water gap 5, the vehicle beam 7, and the quick-change bracket 8.

Detailed Description

The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.

Example 1

An embodiment of the utility model provides a quick change battery, quick change battery are including being used for along a plurality of battery package 1 that trade the length direction of electric vehicle set up, as shown in fig. 1, battery package 11 is used for with trade the electric vehicle and is connected to trade the electric vehicle power supply. The battery pack 1 is arranged at the bottom of the vehicle, so that external battery replacement equipment can enter the bottom of the battery replacement vehicle, and battery replacement operation is facilitated.

As shown in fig. 2, a plurality of locking members 200 are provided on each battery pack 1, and each battery pack 1 is independently locked at the bottom of the vehicle body of the battery replacement vehicle in a bolt locking manner along the vertical direction by the locking members 200.

As shown in fig. 2, a plurality of latches 200 are provided on the top of the battery pack 1. In this embodiment, the locking member 200 is arranged at the top of the box body 2, so that the locking member 200 at the battery pack end located below can be located at a position spatially opposite to a vehicle end locking mechanism of the battery replacing vehicle located above, a straight-up and straight-down locking and unlocking mode is realized, and the locking and unlocking efficiency is improved; relative to the situation that the locking piece 200 is arranged at the bottom of the box body 2 or close to the bottom, the locking piece 200 is arranged at the top of the box body 2, and vibration impact on the battery pack 1 at the top in the driving process is effectively reduced.

In other alternative embodiments, the locking members 200 may be disposed on both sides of the battery pack 1 along the length direction and/or the width direction thereof according to actual design requirements.

When the locking piece 200 is arranged on the side surface of the battery pack 1, the locking position or the locking position of the battery pack 1 is located on the side portion, so that the space in the height direction of the battery pack 1 is not occupied, and the height between the bottom of a vehicle body of the battery replacing vehicle and the ground is favorably ensured. In addition, the locking position or the locking position is arranged on the side part, so that the operable space is large, and the reliable locking of the battery pack is conveniently realized. The locking piece 200 can be arranged on both sides of the battery pack 1 in the length direction, can also be arranged on both sides of the battery pack 1 in the width direction, is flexible in arrangement position, and can be adjusted according to actual locking or arrangement modes. Particularly, when the locking members 200 are disposed on both sides of the battery pack 1 in the longitudinal direction, there is more space for disposing the locking members 200, that is, more locking members 200 can be disposed, which is advantageous to improve the reliability of locking.

In other alternative embodiments, the plurality of locking members 200 may be located in the middle or below the middle of the side surfaces of the battery pack 1 in the height direction of the battery pack 1. Wherein, to vertical mode of connecting, the electric connection often can set up the top surface at battery package 1, when lock piece 200 is located the side top of battery package, latched position or locking position are located the top, when trading electric vehicle acceleration or emergency brake, and is less to the influence at the top of battery package, is favorable to guaranteeing the reliability of locking and electric connection. When the locking piece 200 is located at the bottom of the side face of the battery pack, the unlocking mechanism on the battery replacing device is easier to arrange, and unlocking is more convenient. And set up locking piece 200 in the side middle part of battery package, can compromise convenience that locking reliability and structural arrangement etc. simultaneously.

In the present embodiment, the battery pack 1 can be independently locked to the bottom of the vehicle body of the battery replacement vehicle by the plurality of locking members 200, and the mode of locking the battery pack 1 is simple. In addition, the battery pack 1 is vertically connected to the bottom of the vehicle body of the battery replacing vehicle, only vertical movement can be performed in the battery pack locking process, namely the battery pack can be vertically moved upwards and downwards, the movement mode is simple, and the battery pack 1 locking efficiency is improved. The battery package in this application adopts X to (vehicle length direction) branch case, and X is difficult for producing the unbalance loading at the electricity changing in-process to the branch case, also can not cause the unbalance loading of vehicle under the condition of only connecting part battery package moreover, and the using-way is more nimble, and the suitability is better. Mode easy operation of bolt locking can need not to carry on comparatively complicated electricity changing process, is favorable to reducing the requirement to the equipment of changing electricity, and the locking efficiency and the locking reliability of battery package are all higher.

As shown in fig. 2 and fig. 3, the bolt locking structure includes a locking mechanism 300 and a locking member 200, the locking member 200 includes a bolt 210, the locking mechanism 300 includes a nut 220, and the bolt 210 and the nut 220 are detachably connected to achieve independent locking of the battery pack 11 on a quick-change bracket or a vehicle beam of the electric vehicle. In other alternative embodiments, the locking member 200 may be configured to include a nut 220, and the locking mechanism 300 may be configured to include a bolt 210 accordingly.

That is, in the present embodiment, the bolt 210 is disposed on the battery pack 1, and the nut 220 is disposed on the quick-change bracket or the vehicle beam. In an alternative embodiment, the nut 220 may be provided on the battery pack 1, and the bolt 210 may be provided on the quick-change bracket or the vehicle beam.

The embodiment discloses a structure of a bolt locking mode, which can be applied to locking of a battery pack 1 and a battery-replaceable vehicle, wherein the structure of the bolt locking mode comprises a bolt 210 and a nut 220, and the bolt 210 and the nut 220 are detachably connected to realize independent locking of the battery pack 1 on a quick-change bracket 8 or a vehicle beam 7.

In specific implementation, one of the bolt 210 and the nut 220 can move from bottom to top and rotate relative to the other, so that locking between the bolt 210 and the nut 220 is realized, and the locking mode is simple and reliable in structure. And by means of the relative rotation between the external equipment driving bolt 210 and the nut 220, the battery pack 1 can move from bottom to top, so that the battery changing vehicle is locked, and the efficiency is improved. One of the bolt 210 and the nut 220 moves from top to bottom and rotates relative to the other, so that the bolt 210 and the nut 220 can be unlocked, and the battery pack 1 can be separated from the battery replacement vehicle.

In specific implementation, according to actual working condition requirements, one of the bolt 210 and the nut 220 may be disposed on the battery pack 1, and the other battery replacement vehicle may be disposed on the battery replacement vehicle. The part connected with the battery replacement vehicle can be specifically connected with a quick-change bracket 8 or a vehicle beam 7 of the battery replacement vehicle. When the quick-change bracket 8 is connected with the quick-change bracket 8, the quick-change bracket 8 is connected to the vehicle beam 7, so that the bolt 210 or the nut 220 is connected with the battery-replacement vehicle through the quick-change bracket 8, and when a plurality of bolts 210 or nuts 220 are arranged, the bolts can be integrated on the quick-change bracket 8 and are integrally installed on the vehicle beam 7 of the battery-replacement vehicle, and the installation efficiency can be improved. Alternatively, the bolt 210 or the nut 220 is directly mounted on the vehicle frame 7 of the battery replacement vehicle, so that the mounting space can be saved and the structure can be compact.

In one embodiment, as shown in fig. 2 and 3, a bolt 210 is provided as the locking member 200 on the battery pack 1, and a nut 220 is provided on the quick-change bracket 8 or the vehicle beam 7. The battery pack 1 is locked and connected to the quick-change bracket 8 or the vehicle beam 7 through the bolt 210 and the nut 220. During locking, the bolt 210 can be driven by external equipment to move from bottom to top and rotate relative to the nut 220, so that the bolt 210 and the nut 220 are locked, and the battery pack 1 and the battery replacement vehicle are locked. When unlocking, the bolt 210 is driven by an external device to rotate relative to the nut 220 and move from top to bottom, and the bolt 210 and the nut 220 are separated from each other, so that the battery pack 1 is unlocked.

Specifically, fig. 2 shows a structural schematic diagram of the battery pack 1, and the battery pack 1 has a plurality of bolts 210, wherein the bolts 210 at the left end and the middle are sleeved with nuts 220 connected to the battery replacing vehicle, and the bolts 210 at the right end are not sleeved with the nuts 220. As shown in fig. 3, at the corresponding position of each bolt 210, the battery pack 1 has a through hole 23, and the through hole 23 extends along the vertical direction and penetrates through the upper and lower surfaces of the battery pack 1, so that the external battery replacement device can operate the bolts 210 to realize unlocking and locking.

In another embodiment, a nut 220 is provided as the locking member 200 on the battery pack 1, and a bolt 210 is provided on the quick-change bracket 8 or the vehicle beam 7. During locking, the nut 220 can be driven by external equipment to move from bottom to top and rotate relative to the bolt 210, so that the nut 220 and the bolt 210 are locked, and the battery pack 1 and the battery replacement vehicle are locked. When unlocking, the nut 220 is driven by an external device to rotate relative to the bolt 210 and move from top to bottom, and the nut 220 is separated from the bolt 210, so that the battery pack 1 is unlocked.

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

In a preferred embodiment, the bolt 210 or the nut 220 is disposed at a middle position of the battery pack 1, and the bolt 210 or the nut 220 penetrates the battery pack 1. So set up, be favorable to guaranteeing the stability that battery package 1 and quick change support 8 are connected. In addition, the bolt 210 or the nut 220 penetrates through the battery pack 1, so that the battery pack 1 can be conveniently unlocked by being butted with external unlocking equipment.

In a preferred embodiment, the bolt 210 or the nut 220 is floatingly coupled to the battery pack 1. The floating connection can reduce the torque or vibration transmitted to the battery pack 1 when the battery replacement vehicle is subjected to steering torsion or jolt, and further reduce the influence of the torque or vibration on the battery pack 1.

In a preferred embodiment, the bolt 210 or the nut 220 is floatingly connected to the quick-change bracket 8 or the vehicle beam 7. The floating connection can reduce the torque or vibration of the battery replacement vehicle when the battery replacement vehicle is subjected to steering distortion or jolt, and the torque or vibration is transmitted to the quick-change bracket 8 or the vehicle beam 7, so that the influence of the torque or the vibration on the quick-change bracket 8 or the vehicle beam 7 is reduced.

When the locking mechanism includes the nut 220, the locking mechanism further includes a fixing base (not shown in the figure), and the nut 220 is connected to the fixing base through floating to realize floating connection with the quick-change bracket 8 or the vehicle beam 7.

In a preferred embodiment, the bolt locking structure further includes an anti-rotation structure (not shown) connected to the bolt 210 and/or the nut 220 to prevent relative rotation 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 1 and the quick-change bracket 8 is further ensured. The anti-rotation retaining structure can limit the relative rotation of the bolt 210 and the nut 220 by one of the ratchet, pawl, expansion ball, clamping and meshing.

As a preferred embodiment, as shown in fig. 2, locking members 200 are disposed on two opposite sides of the battery pack 1, and when the battery pack 1 is locked with the battery replacement vehicle, the two opposite sides of the battery pack 1 can be connected with the battery replacement vehicle, so that the gravity of the battery pack 1 is borne on the two sides, the overall stress of the battery pack 1 is balanced, and the reliability of connection between the battery pack 1 and the battery replacement vehicle is improved. In other embodiments, the locking member 200 may be disposed at other positions of the battery pack 1.

In the present embodiment, as shown in fig. 2, the battery pack 1 includes a case 2 and a battery body located inside the case 2. The box 2 is frame construction, and the position department corresponding with the stiff end of lock axle in the frame construction is provided with mounting panel 3, is equipped with a plurality of first mounting holes on the mounting panel 3, is equipped with a plurality of second mounting holes on the stiff end, and the stiff end can be dismantled through the connecting piece that passes second mounting hole, first mounting hole and connect on the mounting panel. The case 2 has a frame structure, and can reliably support and protect the battery body on the basis of reducing cost and weight. The setting of mounting panel 3 had both conveniently realized being connected of lock axle and box, can increase the area of contact of lock axle and box again, was favorable to improving the reliability of being connected of lock axle and battery package. In addition, the installation plate 3 can also play a role in increasing the strength of the box body.

Specifically, the battery pack 1 has a long side 111 and a short side 112; the two lock members 200 are provided on both sides of the casing 2 in the direction in which the long side 111 and/or the short side 112 of the casing 2 extend.

In practical implementation, when the box body 2 has a light weight, the locking member 200 may be disposed along the extending direction of the short side 112 of the box body 2, so as to meet the requirement of bearing the weight of the battery pack 1. When the quality of box 2 is heavier, compare in the minor face 112 extending direction of box 2, establish lock piece 200 in box 2 both sides along the long limit 111 extending direction of box 2, more effectively bear the weight of the whole of battery package 1, avoid box 2 in the intermediate position of its long limit 111 extending direction, because of not having the bearing capacity of lock piece 200 and leading to probably producing flagging or deformation to improve the reliability that lock piece 200 bore battery package 1. Two locking pieces 200 are distributed on two sides of the box body 2, so that the stress of the box body 2 is balanced, and the stability of the battery pack 1 in bearing is facilitated. As shown in fig. 2 and 3, the locking member 200 is shown in a schematic view as it extends along the long side 111 of the casing 2.

Further, as shown in fig. 2, the locking member 200 of each side of the case 2 is provided with four bolts 210 and is uniformly spaced along the length direction of the battery pack 1. Accordingly, according to the volume size or weight of the battery pack 1, the number of the bolts 210 can be adjusted accordingly; for example, when the battery pack 1 has a small volume or the short side 112 thereof is provided with the locking member 200 in the extending direction, only one bolt 210, that is, only two bolts 210 may be provided at both ends of one side of the case 2, as needed. Moreover, the interval arrangement distance of the bolts 210 can be adjusted correspondingly according to the number of the bolts 210, the gravity distribution of the battery pack 1, the size of the case 2 and other factors; the axial direction of the bolt 210 may also have an included angle with the extending direction of the long side 111 of the box body 2, and at this time, only the setting angle of the locking mechanism needs to be adjusted correspondingly, which is not described herein again.

As shown in fig. 2, the bolts 210 of the latches 200 are provided in one-to-one correspondence, so that the latches 200 of both sides form a symmetrical structure. When the battery pack 1 is locked and unlocked with the battery replacing vehicle, the locking pieces 200 on the two sides act consistently, and the unlocking and locking efficiency and reliability are improved.

As shown in fig. 2, the upper surface of the casing 2 is provided with a recessed structure, and the locking member 200 is disposed in the recessed structure, and the connecting position of the locking member and the mounting plate 3 is not higher than the upper surface of the casing 2. The upper surface of the box body 2 is provided with the recessed structure, the locking piece 200 is arranged in the recessed structure, the locking piece 200 is installed and fixed by utilizing the space of the recessed structure, and the ground clearance of the battery pack 1 after being connected to the battery replacing vehicle is improved; the connecting position of the locking piece and the mounting plate 3 is set to be not higher than the upper surface of the box body 2, collision between the locking piece and a vehicle body of the battery replacing vehicle is avoided, the surface structure of the battery pack 1 is kept orderly, and spatial interference between the locking piece 200 and the vehicle body or other components of the battery replacing vehicle is avoided.

Compare in setting up bolt 210 in the upper surface of box 2, when bolt 210 and trade the locking mechanism 300 locking on the electric vehicle, can make the focus of battery package 11 more be close to locking mechanism 300, promote the stability of connecting, also can increase the distance between battery package 11 and the ground, the outside equipment of trading of being convenient for gets into trades electric vehicle below and trades the electric operation.

As shown in fig. 2, the recessed structure is a step 22 provided on both sides of the case 2 in the direction in which the long side 111 of the case 2 extends. The steps 22 on the two sides of the box body 2 are used as a concave structure, so that the box body 2 can be conveniently processed; and establish the both sides at box 2 with step 22 along the long limit 111 extending direction of box 2, be about to establish the both sides at box 2 along the long limit 111 extending direction of box 2 for lock piece 200, more effectively bear the weight of the whole of battery package 1, avoid box 2 in the intermediate position department of its long limit 111 extending direction, because of there is not lock piece 200 bearing capacity and lead to probably producing flagging or deformation, thereby improve the reliability that lock piece 200 bore battery package 1, the atress of box 2 has been balanced, be favorable to the stationarity that battery package 1 was born.

In other embodiments, the recessed structure may be formed in the middle or other position of the case 2 instead of the steps 22 on both sides of the case 2, according to the requirements of the specific structure.

As shown in fig. 2, the recessed structure includes a step bottom 221 and a step side wall 222, the height of the mounting plate 3 of the locking member 200 is not greater than the height of the step side wall 222, and the width of the mounting plate 3 is not greater than the width of the step bottom 221. The downward recessed steps 22 are arranged on two sides of the case 2 along the extending direction of the long edge 111 of the case 2, so that the locking piece 200 arranged in the recessed structure is arranged along the extending direction of the long edge 111 of the case 2, and the whole weight of the battery pack 1 is more effectively borne. The height of the mounting plate 3 is set to be not greater than the height of the side wall of the recess so that the mounting plate 3 does not protrude above the top surface of the case 2 and may interfere with the mounting of other components when it is below the top surface; the width of the mounting plate 3 is set to be not more than that of the bottom surface of the recess, so that the mounting plate 3 is positioned in the side surface of the box body 2 and does not protrude out of the side surface, and the surface structure of the battery pack 1 is kept orderly.

Further, as shown in fig. 2, each bolt 210 has a corresponding mounting plate 3, and when there is a problem with the bolt 210, it is possible to flexibly repair or replace the corresponding mounting plate 3. Specifically, the bottom of the bolt 210 is connected to the step bottom 221 of the recessed structure through the mounting plate 3, the bolt 210 extends along the vertical direction, and the top of the bolt 210 protrudes out of the upper surface of the box body 2, so that the mounting and connecting position of the bolt 210 is consistent with the stress direction of the bolt 210, and the connection stability is improved.

In other embodiments, the mounting plate 3 may be a part of the battery pack 1, such as the step bottom 221, so that the bolt 210 can be directly connected to the battery pack 1, the structure can be simplified, and the space occupied by the bolt 210 in the vertical direction can be reduced, so that the structure is more compact. In other embodiments, the mounting plate 3 of the plurality of bolts 210 may be of unitary construction, such as an elongated plate-like construction. More specifically, it may have a structure having a U-shaped section. During installation and assembly, the bolt 210 can be connected with the installation plate 3 in advance and integrally connected with the battery pack 1, so that the installation efficiency can be improved.

The present embodiment provides a structure capable of a bolt locking manner.

Specifically, as shown in fig. 8 to 11, the locking member 200 includes a bolt 210, the locking mechanism 300 includes a lock holder 310 and a nut 220, the nut 220 is disposed inside the lock holder 310 and is fixedly connected with the lock holder 310, and the bolt 210 and the nut 220 are detachably connected to achieve independent locking of the battery pack 1 to the quick-change bracket 8 of the battery-replaceable vehicle. The embodiment realizes the locking of the bolt between the battery pack 1 and the battery replacing vehicle through the matching between the bolt 210 and the nut 220, and the locking mode is simple and convenient, thereby being beneficial to improving the locking efficiency.

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

As shown in fig. 8 to 11, the rotation-prevention and withdrawal-prevention structure includes a first rotation-prevention member 91 and a second rotation-prevention member 92, the first rotation-prevention member 91 is sleeved on the outer peripheral side of the second rotation-prevention member 92, the first rotation-prevention member 91 is connected to the battery pack 1, the second rotation-prevention member 92 is connected to the connecting portion 712 of the bolt 210, and the second rotation-prevention member 92 is used for switching between the first position and the second position under the action of external force. When the second rotation-preventing part 92 is located at the first position, the outer peripheral wall of the second rotation-preventing part 92 is clamped with the inner peripheral wall of the first rotation-preventing part 91. When the second rotation preventing member 92 is located at the second position, the second rotation preventing member 92 is disengaged from the first rotation preventing member 91 in the axial direction of the bolt 210.

The first anti-rotation part 91 plays a role in connection and positioning, an acting force along the axial direction of the bolt 210 is applied to the second anti-rotation part 92 through the electricity changing equipment, so that the second anti-rotation part 92 is moved from the first position to the second position, the second anti-rotation part 92 located at the second position can rotate freely, the bolt 210 connected with the second anti-rotation part 92 is driven 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 part 92 is driven from the second position to the first position, at the moment, the second anti-rotation part 92 is clamped with the first anti-rotation part 91, the position of the second anti-rotation part 92 is fixed, and the bolt 210 cannot rotate any more.

In other alternative embodiments, when the lock member 200 is mounted on the vehicle, the first rotation prevention member 91 is also fixed to the vehicle.

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

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

In other alternative embodiments, the gear teeth of the inner gear ring 911 and the outer gear ring 921 may be in other shapes such as helical teeth besides a straight-tooth structure, and the inner gear ring 911 can limit the circumferential rotation of the outer gear ring 921.

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

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

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

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

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

It should be noted that in alternative embodiments, a rotational anti-backup feature may be correspondingly configured to couple to the nut 220. At this time, the first anti-rotation member 91 is sleeved on the outer peripheral side of the second anti-rotation member 92, the first anti-rotation member 91 is connected to the battery pack 1, the second anti-rotation member 92 needs to be correspondingly configured to be connected to the nut 220, and the second anti-rotation member 92 is used for switching between the first position and the second position under the action of external force. When the second rotation-preventing part 92 is located at the first position, the outer peripheral wall of the second rotation-preventing part 92 is clamped with the inner peripheral wall of the first rotation-preventing part 91. When the second 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 200 further includes an elastic member 72 and a lock housing 73, the first rotation-preventing member 91, the second rotation-preventing member 92 and the elastic member 72 are disposed in the lock housing 73, and the threaded portion 711 of the bolt 210 can extend out of the lock housing 73 to be engaged with the nut 220. Two ends of the elastic element 72 respectively abut against the lock case 73 and the second rotation preventing element 92, and the elastic element is used for applying an acting force to the second rotation preventing element 92 to enable the second rotation preventing element 92 to be reset from the second position to the first position. When the second anti-rotation member 92 moves in the direction close to the nut 220 along the axial direction of the bolt 210, the elastic member 72 is pressed and generates compression displacement, and after the locking or unlocking of the bolt 210 and the nut 220 is completed through the second anti-rotation member 92, under the action of the restoring force of the elastic member, the second anti-rotation member 92 is reset to the first position and clamped with the first anti-rotation member 91, and further does not rotate, so that the anti-rotation function of the bolt 210 is realized.

The elastic member 72 in this embodiment is a spring, and in other alternative embodiments, the elastic member 72 may be another elastic member capable of achieving the above-mentioned functions.

Based on the specific mechanism of the locking device, the locking and unlocking processes of the battery pack 1 and the quick-change bracket 8 will be briefly described.

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

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

As shown in fig. 2, the battery pack 1 further includes a buffer member 20, and the buffer member 20 is provided on a side surface of the battery pack 1. Relative to the direction of the upper surface and the lower surface of the box body 2 (namely the direction of jacking the battery pack 1), after the battery pack 1 is installed on the battery replacement vehicle, the vibration on the side surface (namely the horizontal direction) of the box body 2 is larger, namely the box body 2 is easy to collide with the battery replacement vehicle, and the buffer member 20 is arranged on the side surface of the box body 2 along the direction of jacking the battery pack 1, so that the vibration of the battery pack 1 in the horizontal direction is effectively buffered; and may be provided on one or more sides of the housing 2 as required for various vibration dampening.

Specifically, the buffer member 20 is provided in plurality, and the plurality of buffer members 20 are disposed on the box body 2 along at least one horizontal direction; when the plurality of buffers 20 are provided on the same surface of the case 2, the plurality of buffers 20 are provided at intervals. The plurality of buffer members 20 are arranged on the box body 2 along at least one horizontal direction, so that the vibration of the battery changing vehicle to the battery pack 1 is buffered in one horizontal direction or a plurality of horizontal directions; when being equipped with a plurality of bolster 20 on the same surface of box 2, set up a plurality of bolster 20 intervals, the vibration impact that receives in the different positions department of balanced battery package 1 has improved buffering effect.

In one embodiment, the buffer member 20 is circumferentially disposed on a side surface of the case 2. The buffer parts 20 are circumferentially arranged on the side faces of the box body 2, namely the buffer parts 20 are arranged on all the circumferential side faces of the box body 2, so that the vibration of different types possibly received by all the side faces of the box body 2 is buffered, the buffer protection is more comprehensive, and the overall stability of the battery pack 1 is further improved.

In another embodiment, the buffer members 20 are provided on the side surfaces of the long sides 111 of the case 2, and a plurality of buffer members 20 are provided on both the side surfaces of the long sides 111 of the battery pack 1, so that it is possible to resist an impact applied in the width direction of the battery pack 1.

In still another embodiment, as shown in fig. 2, the buffer members 20 are disposed on the lateral surfaces of the short sides 112 of the battery pack 1, and specifically, two buffer members 20 are disposed on the lateral surfaces of the short sides 112 of the battery pack 1, and the two buffer members 20 are spaced apart from each other at both ends of the short sides 112, so as to resist the impact applied in the longitudinal direction of the battery pack 1.

As shown in fig. 2, the buffer member 20 is provided at the upper portion of the battery pack 1 in the direction of lifting up the battery pack 1. Compared with the lower position of the battery pack 1, the upper part of the battery pack 1 is directly connected with the battery replacing vehicle, the vibration generated by driving or locking or unlocking is larger, the buffer part 20 is arranged on the upper part of the battery pack 1, the vibration is directly and effectively absorbed, and the overall stability of the battery pack 1 is improved.

As shown in fig. 4 to 7, the cushion 20 includes an elastic member 201 and a stopper member 101, and when the battery pack 11 is connected to the battery replacement vehicle, the elastic member 201 abuts against the stopper member 101.

The resilient member 201 includes a mounting portion 203 for mounting the resilient member 201 to the inner side wall of the quick-change holder 8, and a protrusion 2111, the protrusion 2111 protruding with respect to the mounting portion 203 in a direction away from the inner side wall of the quick-change holder 8. A face of the protrusion 2111 facing the quick-change holder 8 is formed with a groove, and when the resilient member 201 is mounted to the quick-change holder 8, there is a gap defined by the groove between the protrusion 2111 and an inner side wall of the quick-change holder 8. When the battery pack 11 is mounted in the quick-change holder 8, the protrusion 2111 is deformed toward the inner side wall of the quick-change holder 8.

The protrusion 2111 has an upper inclined surface 2112 and a lower inclined surface 2113 which are provided to be inclined from the protruding end of the protrusion 2111 to the mounting portion 203, and which are opposed to each other.

The protrusion 2111 further includes a left inclined surface 2114 and a right inclined surface 2115 which are provided to face each other and inclined in the direction of the mounting portion 203 from the protruding end of the protrusion 2111.

These inclined surfaces provide the protrusion 2111 with better elasticity and better guidance to cushion the battery pack 111 from impact.

In the present embodiment, the elastic member 201 includes two protrusions 2111 distributed along the vertical direction. The mounting portion 203 is provided between two adjacent protrusion portions 2111.

By providing a plurality of protrusions 2111, the elasticity thereof can be ensured well. However, the present invention is not limited to this, and the number of the protruding portions 2111 may be one, three or more, as needed, and the number of the protruding portions 2111 does not affect the implementation of the functions.

In the present embodiment, the upper end of the elastic member 201 is a free end 218, and the free end 218 is connected to the upper inclined surface 2112 side of the protrusion 2111. The free end 218 may be a plate-like structure that fits against the inner side wall of the quick-change holder 8, or the free end 218 may be a plate-like structure that has a clearance from the quick-change holder 8. The lower end of the elastic member 201 is provided with an engaging portion 219, and the engaging portion 219 is used for engaging with the inner side wall of the quick-change holder 8.

As shown in fig. 6, the engaging portion 219 is formed to be bent toward the inner wall of the quick-change bracket 8 of the electric vehicle. Alternatively, the engaging portion 219 may be formed in a hook shape that hooks the lower surface of the inner side wall of the quick-change holder 8, so as to facilitate the positioning and installation of the elastic member 201 relative to the quick-change holder 8 and further restrict the movement of the elastic member 201 relative to the quick-change holder 8. The connection between the engaging portion 219 and the protrusion 2111 is an arc 23, and when the stopper member 101 is engaged from below the elastic member 201, the arc 23 facilitates the engagement of the stopper member 101, and prevents the interference of the bottom structure of the elastic member 201 with the upward movement of the stopper member 101.

In other embodiments, the engaging portion 219 may have another shape that can engage with the inner side wall of the quick-change holder 8. Alternatively, corresponding grooves or the like may be provided in the inner side wall of the quick-change holder 8 to engage with the snap-fit portions 219.

In other embodiments, the catch 219 may be disposed at an upper end of the elastic member 201, while a lower end of the elastic member 201 is the free end 218. Alternatively, the engaging portions 219 may be provided at both upper and lower ends of the elastic member 201.

Alternatively, the engaging portion 219 may not be provided, so that both the upper and lower ends of the elastic member 201 are the free ends 218.

The mounting portion 203 is provided with a mounting hole 204, and the elastic member 201 is fixed to the inner side wall of the quick-change holder 8 by a screw member. Alternatively, the mounting portion 203 can be fixed to the quick-change holder 8 in other ways.

In this embodiment, the elastic member 201 is made of metal, in other embodiments, the buffer 20 may also adopt other structural forms capable of achieving a buffering effect, and the buffer 20 may also adopt other elastic materials.

As shown in fig. 2, the battery pack 1 further includes a battery-end electrical connector 4 for communicating with a vehicle-end electrical connector (not shown) of the battery replacement vehicle, and the electrical connector is provided on an upper surface or a side surface of the box body 2 in a direction of lifting up the battery pack 1. When the battery end electric connector 4 is arranged on the side surface of the box body 2, the requirement of connecting the electric connector on the side surface can be met; when the battery end electric connector 4 is arranged on the upper surface of the box body 2 along the direction of jacking the battery pack 1, the battery end electric connector 4 and the corresponding vehicle end electric connector on the battery replacing vehicle form a relative position relation, so that the insertion or separation of the electric connector can be realized by adopting a straight-up, straight-down movement mode, the connection mode is simple, and the reliability is high.

Specifically, the battery-end electrical connector 4 is provided on the upper surface of the case 2 near one end of the case 2 in the present embodiment.

In an alternative embodiment, the battery end electrical connector 4 may also be provided at a top intermediate position of the case 2, as described below with reference to fig. 12. With the arrangement, the battery end electric connector 4 is conveniently electrically connected with the vehicle end electric connector, the wiring is also convenient, and the battery end electric connector 4 is arranged at the middle position of the top of the battery pack with the minimum shaking, so that the electric connection is more reliable. The middle position is also the position with the minimum shaking amplitude, and the battery end electric connector 4 is arranged at the middle position, so that the connection is more reliable.

As shown in fig. 2, the battery pack 1 further includes a battery end water port 5 for connecting with a vehicle end water port (not shown) of the battery replacement vehicle, and the battery end water port 5 is provided on an upper surface or a side surface of the box body 2 in a direction of lifting up the battery pack 1. When the battery end water port 5 is arranged on the side surface of the box body 2, the requirement that the side surface is communicated with the water port can be met; when the battery end connecting water port 5 is arranged on the upper surface of the box body 2 along the direction of jacking the battery pack 1, the battery end connecting water port 5 and a corresponding vehicle end water receiving port on the battery replacing vehicle form a relative position relation, so that the locking or unlocking of the battery pack 1 is met by a straight-up and straight-down movement mode, meanwhile, the communication of the water receiving ports is also realized, the connection mode is simple, the communication distance is shortened, and the efficiency is improved.

The embodiment further provides a trade electric vehicle, as shown in fig. 1, trade electric vehicle and include automobile body, quick change support 8, locking mechanism and foretell battery package 1, and quick change support 8 connects in the automobile body, and locking mechanism sets up on quick change support 8, and battery package 1 passes through its lock axle and passes through bolt 210 locking mode and locking mechanism and can dismantle to be connected on quick change support 8 with locking mechanism. The battery pack 1 is adopted in the battery replacement vehicle, so that a locking and unlocking mode which is straight up and straight down is realized; the reliability of lock shaft connection is improved, the vibration of the battery pack 1 is reduced, and the service life of the lock shaft is prolonged.

It should be noted that the battery pack is provided with the locking member 200, and the locking member 200 includes a locking shaft, which is a bolt 210 in a preferred embodiment. Locking mechanism includes locking portion, and locking portion is nut 220, and locking portion has the passageway that supplies the lock axle entering of locking piece 200, and can make vertical rebound to latched position behind the lock axle entering passageway, and locking portion locks the lock axle that is located latched position.

The vertical upward movement of the lock shaft of the locking member 200 refers to a general movement trend, and the specific movement process or movement form is not limited. In fact, in this embodiment, the lock shaft of the lock member 200 is rotated vertically upward when moving.

As shown in fig. 1, the battery replacement vehicle includes a plurality of battery packs 1, the plurality of battery packs 1 are arranged along a length direction of the battery replacement vehicle, and a long side 111 of the battery pack 1 is perpendicular to the length direction of the battery replacement vehicle. The plurality of battery packs 1 are arranged along the length direction of the battery replacing vehicle, the long edge 111 of each battery pack 1 is perpendicular to the length direction of the battery replacing vehicle, the length direction of the vehicle is fully utilized to form a large space, more battery packs 1 can be arranged, and the space utilization rate and the capacity of each battery pack 1 are improved. The long side 111 of the battery pack 1 is perpendicular to the length direction of the battery replacement vehicle, so that the side surface of the long side 111 with a larger area on the box body 2 can be used for bearing the impact on the battery pack 1 in the driving direction of the vehicle, and the battery pack 1 can be protected.

Further, the battery pack 1 is located below the quick-change holder 8. The battery pack 1 is arranged below the quick-change support 8, so that the locking mechanism of the quick-change support 8 positioned above and the locking piece of the battery pack 1 positioned below form an upper relative position and a lower relative position, and the battery-changing vehicle adopts the battery pack 1 to realize a specific locking and unlocking mode which is vertical to the upper and the lower, so that the mode of changing the battery from the bottom of the vehicle is realized.

As shown in fig. 1, the battery pack 1 is specifically provided below the vehicle body frame 7. In an alternative embodiment, the battery pack 1 may be partially extended upward to protrude from the bottom of the vehicle body member 7.

When only one part of the battery pack 1 is positioned below the vehicle beams 7, the parts of the battery pack, which are positioned at the outer sides of the two vehicle beams 7, protrude out of the bottom of the vehicle beams 7, or the parts of the battery pack, which are positioned between the two vehicle beams, protrude out of the bottom of the vehicle beams.

Further, when the battery pack 1 partially extends upward, it may protrude from the outer sides of the two vehicle rails 7 and/or between the two vehicle rails 7 to the bottom of the vehicle rails 7. By the arrangement, the flexibility of design is further improved, and more arrangement requirements can be met to meet more different design requirements.

As shown in fig. 1, in a preferred embodiment, two adjacent battery packs 1 are spaced apart from each other, and/or a buffer member is disposed between two adjacent battery packs 1. Wherein, adjacent battery package interval sets up, can prevent to bump or rub between the battery package 1, is favorable to protecting battery package 1, improves battery package 1's life. In addition, the battery packs 1 are spaced, so that the battery packs 1 can be conveniently replaced by the battery replacement equipment. Be provided with the bolster between the adjacent battery package 1, can prevent to take place rigid collision between the battery package 1, also be favorable to protecting battery package 1, improve battery package 1's life.

In another preferred embodiment, the battery replacement vehicle further comprises a guide mechanism, and the guide mechanism comprises a guide piece arranged on the battery pack and a guide mating piece arranged at the bottom of the vehicle body of the battery replacement vehicle and matched with the guide piece. The guide member is at least disposed at a side of the battery pack where the locking member 200 is located. The guide member is spaced from the locking member 200 at a side of the battery pack where the locking member 200 is located. When the battery pack is connected with the battery replacement vehicle, the guide piece and the guide fitting piece are connected with the locking mechanism in a matched mode before the locking piece is connected with the locking mechanism in a matched mode.

The guide mechanism is arranged, so that the installation of the quick-change battery and the quick-change vehicle is convenient to realize, and the installation reliability can be ensured. The guide member is spaced apart from the locking member 200, so that the connection process of the battery pack 1 is more stable. When the battery pack 1 is connected, the guide function can be realized before the locking function, so that the locking function is more smooth.

Further, in this embodiment, the quick-change bracket 8 is an integral quick-change bracket, and the integral quick-change bracket is provided with a plurality of corresponding battery pack accommodating areas corresponding to the battery packs 1. Wherein, integral support can wholly hold a plurality of battery packages, easy to assemble and dismantlement.

In other alternative embodiments, the quick-change bracket 8 may be configured to include a plurality of split brackets, and the split brackets are respectively connected to the vehicle body and correspond to the plurality of battery packs 1 one to one.

Wherein, split type support corresponds with single battery package 1, when a certain battery package 1 need be changed or maintain, only need dismantle corresponding single battery package 1 can.

That is to say, in different embodiments, according to the actual design demand of difference, can set up the quick change support into integral quick change support, also can set up the quick change support into split type support, design more nimble.

Specifically, the battery replacement vehicle is an electric truck. The quick-change support 8 is arranged on a vehicle beam 7 of the battery replacement vehicle.

The electric truck requires a larger amount of energy than a passenger car, and the battery pack 1 is also larger in power supply amount and volume. When the battery replacement operation is performed on the electric truck, the battery pack 1 is adopted, so that a straight-up and straight-down locking and unlocking mode is realized, the locking and unlocking steps can be simplified, the battery replacement efficiency can be improved, the battery pack 1 can be prevented from shaking in the battery replacement process due to excessive battery replacement steps, and the reliability of the battery replacement is improved; and moreover, the energy consumption of external battery replacement equipment during battery replacement can be reduced.

Example 2

The embodiment provides another bolt locking implementation mode. The present embodiment is basically the same as the quick-change battery in embodiment 1, and the difference is mainly the installation manner of the locking member and the battery pack. As shown in fig. 12 and 13, the frame structure of the cabinet 2 is provided with the mount plate 3, and the lock member 200 is detachably attached to the mount plate 3. Specifically, the mounting plates 3 are provided on both sides of the top of the box body 2 (frame structure). Latch member 200 is removably attached to mounting plate 3 by mounting seat 24.

The locking piece 200 is arranged on the frame structure through the mounting plate 3, and the arrangement of the locking piece 200 does not affect the structure of the box body of the battery body, so that the battery pack 1 is protected. Meanwhile, the space for installing the locking piece is not reserved on the box body, so that the size of the battery pack 1 is not influenced. In addition, during specific installation, a plurality of locking pieces 200 can be correspondingly connected to the installation plate 3, and then the installation plate 3 is installed on the frame structure, so that the connection is convenient.

The mounting plate 3 and the box body 2 may be connected by any suitable connection method, such as welding, screwing with a fastener, etc.

In addition, as shown in fig. 12 and fig. 13, a through hole 23 for allowing the shaft body to pass through is provided at a position corresponding to the locking member 200 at the bottom of the mounting plate 3, specifically, a through hole 23 is provided at a position corresponding to the locking member 200 at the bottom of the mounting plate 3, and one end of the connecting column 211 (serving as an unlocking linkage) far away from the lock base 220 extends out of the mounting plate 3 from the through hole 23, so as to be conveniently butted with an external unlocking device, and further, to conveniently realize unlocking. The unlocking linkage piece is used for linkage of the corresponding structures of the external unlocking equipment and the locking piece 200, and can be integrated with the corresponding structures of the locking piece or connected with the corresponding structures of the locking piece only in unlocking and locking according to actual design requirements.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The quick-change battery is characterized by comprising a plurality of battery packs arranged along the length direction of a battery replacement vehicle, wherein each battery pack is provided with a plurality of locking pieces, and each battery pack is vertically and independently locked at the bottom of a vehicle body of the battery replacement vehicle through a bolt locking mode through the locking pieces.

2. The quick-change battery as claimed in claim 1, wherein the bolt locking manner structure comprises a locking mechanism and the locking piece; the locking piece comprises a bolt, and the locking mechanism comprises a nut; or the locking piece comprises a nut, and the locking mechanism comprises a bolt; the bolt and the nut are detachably connected so as to independently lock the battery pack on a quick-change bracket or a vehicle beam of the battery-changing vehicle.

3. The quick-change battery according to claim 2, wherein 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.

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

5. The quick-change battery according to claim 3, wherein the bolt or the nut is floatingly connected to the battery pack; or the bolt or the nut is in floating connection with the quick-change bracket or the vehicle beam.

6. The quick-change battery according to claim 2, wherein the locking mechanism further comprises a fixed base to which the nut is floatingly coupled.

7. The quick-change battery according to claim 2, wherein the bolt comprises a threaded portion and a coupling portion, the threaded portion being threaded and adapted to be threadedly coupled to the nut.

8. The quick-change battery as claimed in claim 7, wherein the locking member further comprises a lock housing, and the bolt is disposed in the lock housing and can be vertically lifted or rotated relative to the lock housing.

9. The quick-change battery according to claim 7, wherein the bolt-locking arrangement further includes an anti-rotation backstop structure coupled to the bolt and/or the nut for preventing relative rotational movement between the bolt and the nut.

10. The quick-change battery according to claim 9, wherein the anti-rotation and anti-backup structure comprises a first anti-rotation member and a second anti-rotation member;

11. The quick-change battery according to claim 10, wherein the first rotation-preventing member is an inner ring gear, the second rotation-preventing member is an outer ring gear, and the inner ring gear is sleeved on the outer peripheral side of the outer ring gear; and when the second anti-rotation piece is positioned at the first position, the gear teeth of the inner gear ring are clamped with the gear teeth of the outer gear ring.

12. The quick-change battery according to claim 11, wherein the first anti-rotation member further comprises an inner flange extending from an inner peripheral wall of the ring gear to a radially inner side of the ring gear; when the second anti-rotation piece is located at the first position, one end, far away from the bolt, of the second anti-rotation piece is abutted to the inner flange.

13. The quick-change battery according to claim 10, wherein the connecting portion of the bolt extends into the second anti-rotation member, and one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with circumferentially-distributed vertical grooves, and the other one of the outer peripheral wall of the connecting portion and the inner peripheral wall of the second anti-rotation member is provided with circumferentially-distributed protrusions matched with the vertical grooves.

14. The quick-change battery as claimed in claim 10, wherein the locking member further comprises a lock housing, and the bolt is disposed in the lock housing and can be vertically lifted or rotated relative to the lock housing;

the anti-rotation retaining structure also comprises an elastic piece;

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

15. The quick-change battery as claimed in claim 1, wherein a plurality of locking members are provided on the top of the battery pack, or a plurality of locking members are provided on both sides of the battery pack in the length direction and/or width direction thereof.

16. The quick-change battery according to claim 15, wherein the plurality of locking members are positioned in the middle or below the middle of the side surface of the battery pack in the height direction of the battery pack.

17. The quick-change battery according to claim 3, wherein the battery pack comprises a case and a battery body located in the case; the box is frame construction, in the frame construction with the corresponding position department of lock piece is provided with the mounting panel, be equipped with a plurality of first mounting holes on the mounting panel, be equipped with a plurality of second mounting holes on the lock piece, the lock piece through pass the second mounting hole the connecting piece of first mounting hole can dismantle connect in on the mounting panel.

18. The quick-change battery according to claim 17,

the upper surface of the battery pack is provided with a concave structure, and the mounting plate is arranged on the bottom surface of the concave structure;

or the mounting plate is arranged on the side surface of the box body.

19. The quick-change battery according to claim 18, wherein the mounting plate and/or the battery pack is provided with a through hole at a position corresponding to the locking member, and the through hole is used for an external unlocking device to enter or is used for accommodating an unlocking linkage member.

20. The quick-change battery according to any one of claims 1 to 19, wherein the battery pack is further provided with an electrical connector disposed at a top intermediate position of the battery pack.

21. A battery replacement vehicle, characterized in that it comprises a quick-change battery as claimed in any one of claims 1 to 20 and the vehicle body.

22. The battery replacement vehicle as claimed in claim 21, wherein the vehicle body of the battery replacement vehicle is provided with a vehicle beam, and the battery pack is arranged below the vehicle beam, or part of the battery pack extends upwards and protrudes out of the bottom of the vehicle beam; the car beam is a car body longitudinal beam.

23. The battery replacement vehicle as claimed in claim 22, wherein the vehicle body has two side-by-side and spaced-apart vehicle beams, and the battery pack extends partially upward and protrudes from the outer sides of the two vehicle beams and/or between the two vehicle beams at the bottom of the vehicle beams.

24. The battery replacement vehicle of claim 21, wherein:

the two adjacent battery packs are arranged at intervals;

and/or a buffer piece is arranged between every two adjacent battery packs.

25. The hybrid electric vehicle of claim 21, wherein the lock comprises a lock shaft, the lock shaft being a bolt;

26. The battery replacement vehicle as claimed in claim 21, further comprising a guide mechanism, wherein the guide mechanism comprises a guide piece arranged on the battery pack and a guide fitting piece arranged at the bottom of a vehicle body of the battery replacement vehicle and matched with the guide piece;

27. The hybrid electric vehicle as recited in claim 25 further comprising a quick-change bracket coupled to a vehicle body of the hybrid electric vehicle, the locking mechanism being mounted to the quick-change bracket.

28. The replacement vehicle of claim 27, wherein the quick-change bracket is an integral quick-change bracket having a plurality of corresponding battery pack receiving areas corresponding to each of the battery packs; or the quick-change bracket comprises a plurality of split brackets which are respectively connected to the vehicle body and correspond to the battery packs one to one.

29. The battery replacement vehicle according to any one of claims 21-28, wherein the battery replacement vehicle is an electric truck.