CN218558546U

CN218558546U - Quick change assembly and battery changing vehicle

Info

Publication number: CN218558546U
Application number: CN202222808496.8U
Authority: CN
Inventors: 张建平; 于新瑞; 褚佳玮; 宋志强; 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: 2023-03-03
Anticipated expiration: 2032-10-24
Also published as: CN219007567U; CN116118452A; CN218805182U; CN218558547U; CN116118454A; CN218558548U; CN116118457A; CN218577494U; CN116252607A; CN116118453A; CN116118469A; CN116353320A; CN116118455A; CN218577493U; CN116118461A; CN218577489U; CN218577492U; CN116353319A; CN219096472U; CN219096474U

Abstract

The utility model relates to a trade the electric field, provide a quick change assembly, trade electric vehicle, should trade electric vehicle and include this quick change assembly. The quick-change assembly comprises a quick-change support and a battery pack, the quick-change support and the battery pack are detachably connected in an expansion bead locking mode, the battery packs are arranged in a plurality of directions, and a first buffer structure is arranged between the battery packs and the quick-change support. The battery packs are arranged in a sub-packaging mode, so that the weight of a single battery pack is reduced, and the battery packs are convenient to maintain and replace; the battery pack is protected by arranging the first buffer structure; the quick-change bracket is detachably connected with the battery pack, so that the battery pack can be conveniently taken down to repair the battery pack or the quick-change bracket or replace the battery pack; the expansion bead locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Description

Quick change assembly and battery changing vehicle

This application claims priority to chinese patent application 2022108378041, bearing the filing date of 2022, month 07 and 15. The present application refers to the above-mentioned chinese patent application in its entirety.

Technical Field

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

Because the battery pack and the quick-change bracket which are installed in a replaceable way are in a detachable locking mode, the battery pack and the quick-change bracket cannot be locked completely, and therefore, under the condition that the battery-changing vehicle jolts or is subjected to inertia factors, the battery pack is easy to violently collide with the quick-change bracket under the action of inertia, and the battery pack is damaged. Particularly for large vehicles, the large vehicles have higher capacity requirements on the battery packs, so the battery packs are larger and heavier and are more easily collided with the quick-change brackets, and the battery packs are damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to produce the collision in order to overcome among the prior art battery package and quick change support, and lead to the easy defect of damaging of battery package, provide a quick change assembly, trade electric vehicle.

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

the utility model provides a quick change assembly, includes the quick change support and can dismantle with the pearl locking mode of rising and connect battery package on the quick change support, the battery package is a plurality of and arranges along same direction, the battery package with be equipped with first buffer structure between the quick change support.

In the scheme, the first buffer structure can play a buffer role between the battery pack and the quick-change support, so that the situation that the battery pack is violently collided with the quick-change support due to jolting or inertia factors during the operation of the battery changing vehicle is avoided, and the battery pack is protected. And meanwhile, the battery packs are arranged in a sub-packaging mode, so that the weight of a single battery pack is reduced, and when the single battery pack is damaged, only the damaged battery pack needs to be repaired or replaced correspondingly. The plurality of battery packs are arranged along the same direction, so that the structure is compact. The battery pack is detachably connected to the quick-change support, so that the battery pack can be conveniently taken down to repair the battery pack or the quick-change support or replace the battery pack. In addition, the expansion bead locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Preferably, the quick-change assembly further comprises a locking piece and a locking mechanism, the locking piece comprises an expansion bead, the locking mechanism comprises a lock seat, and the expansion bead is detachably connected with the lock seat to independently lock the battery pack on a quick-change bracket or a vehicle beam of the battery-changing vehicle.

In this scheme, realize the pearl locking that rises of detachable through the pearl that rises and lock seat, simple structure reliably is convenient for realize. The quick-change support is fixed on the battery replacement vehicle, and the battery pack is locked on a vehicle beam of the battery replacement vehicle, so that the battery pack is connected to the quick-change support.

Preferably, the expansion bead is arranged on the battery pack, and the lock seat is arranged on the quick-change bracket or the vehicle beam; or the lock seat is arranged on the battery pack, and the expansion beads are arranged on the quick-change bracket or the vehicle beam.

Preferably, the locking member or the lock seat is disposed at a middle position of the battery pack, and the locking member or the lock seat penetrates through the battery pack.

In this scheme, lock piece or lock seat setting are in the intermediate position of battery package for load evenly distributed has effectively avoided the deformation of battery package on the battery package, improves the stability and the anti-seismic performance of battery package greatly. The locking piece or the lock seat penetrates through the battery pack, so that the locking is reliable, and the stability of connection between the battery pack and the quick-change bracket is guaranteed.

Preferably, the locking piece or the locking seat is connected to the battery pack in a floating mode.

Preferably, the locking piece or the lock seat is connected to the quick-change bracket or the vehicle beam in a floating manner.

In this scheme, lock piece or lock seat float to be connected on the battery package, can reduce and trade the electric vehicle and receive to turn to the distortion or the moment of torsion or the vibrations transmission to the battery package when jolting, and then make the battery package receive the moment of torsion or the influence of vibrations reduces. The locking piece or the lock seat is connected to the quick-change support or the car beam in a floating mode, so that the torque or vibration of the electric vehicle subjected to steering distortion or bumping can be reduced and transmitted to the quick-change support or the car beam, and the influence of the torque or the vibration on the quick-change support or the car beam is reduced. The floating connection of the locking piece or the lock base enables the locking piece or the lock base to be self-adjusted in the process of hanging the battery pack, and then the locking piece and the lock base can be connected in a matched mode. The whole manufacturing precision of the chassis and the manufacturing precision of the battery pack are reduced, and the requirement on the positioning precision of the battery pack is reduced in the process of replacing the battery pack, so that the production process is simplified, and the production efficiency is improved.

Preferably, the locking piece further comprises a driving rod, the expansion bead is arranged at the top of the driving rod, the lock base is provided with a locking groove, and the driving rod is used for lifting or rotating along the vertical direction under the action of an external mechanism so as to drive the expansion bead to abut against the locking groove for locking or enable the expansion bead to exit from the locking groove.

In this scheme, go up and down or rotate along vertical direction through the actuating lever and carry out the locking with the drive pearl that rises, or will rise the pearl and withdraw from the locking groove and realize the unblock, simple structure, reliable, easily realization, and convenient operation.

Preferably, the expansion ball comprises a driving ball and a plurality of locking balls, the driving ball is arranged at the top of the driving rod, and the driving ball is used for being driven by the driving rod to lift along the vertical direction and driving the locking balls to enter the locking grooves for locking.

In this scheme, set up drive ball and locking ball, the actuating lever passes through the drive ball and indirectly drives locking ball and gets into the locking inslot and carry out the locking, has reduced the structure and the mutual position requirement to the pearl that rises and actuating lever, is convenient for simplify the structure of single part, the nimble of the spare part of still being convenient for arranges.

Preferably, the locking member further comprises a housing, and the driving rod is disposed in the housing and can be lifted or rotated in a vertical direction relative to the housing.

In this scheme, the actuating lever setting is in the shell, and the shell can play the guard action to the actuating lever, reduces or avoids the impact that the actuating lever received. Meanwhile, the driving rod and the shell are matched conveniently, so that the shell plays a role in guiding or restraining the movement of the driving rod, and the movement of the driving rod is more stable and reliable.

Preferably, at least a portion of an outer circumferential surface of the drive rod and at least a portion of an inner circumferential surface of the housing are threadedly engaged.

In this scheme, the actuating lever passes through threaded engagement with the shell, can make the actuating lever go up and down or rotate steadily along vertical direction to make locking and unblock process steady. Meanwhile, the thread matching also has a self-locking function, so that automatic unlocking is avoided to a certain extent.

Preferably, the housing has a first channel arranged in a vertical direction, and a second channel arranged in a circumferential direction of the first channel, the second channel penetrates through the housing and is communicated with the first channel, and the driving rod is configured to ascend and descend or rotate in the first channel to push the locking ball from the second channel into the locking groove for locking, or to withdraw the locking ball from the locking groove.

In this scheme, first passageway sets up along vertical direction, and the actuating lever goes up and down or rotates in first passageway to the motion of actuating lever and battery package installation or the motion direction of dismantling are unanimous, improve installation or dismantlement efficiency.

Preferably, the number of the locking balls is plural, and the plural locking balls are uniformly arranged along the circumferential direction of the driving rod.

In this scheme, set up a plurality of locking balls, a plurality of locking balls are along the circumference evenly distributed of actuating lever, and the atress is balanced when homoenergetic makes locking ball and lock seat locking.

Preferably, the quick-change assembly further comprises an anti-rotation retaining structure, and the anti-rotation retaining structure is connected to the locking piece and/or the lock seat to prevent the relative movement between the expansion bead and the lock seat.

In this scheme, prevent changeing stopping structure can avoid the relative lock seat's of pearl that rises motion in the locking position, guarantees the reliability of lock piece and locking mechanism locking, and then guarantees the reliability of battery package and quick change leg joint.

Preferably, the anti-rotation retaining structure can limit the movement of the expansion ball relative to the lock seat through one of the matching modes of ratchet, pawl, expansion ball, clamping and meshing.

Preferably, a plurality of the battery packs are arranged along the length direction or the width direction of the body of the battery replacement vehicle.

In this scheme, the battery package is arranged along the length direction or the width direction of automobile body and is convenient for battery package's installation and dismantlement.

Preferably, a second buffer structure is arranged between the adjacent battery packs.

In this scheme, the second buffer structure is used for avoiding colliding between battery package and the battery package.

Preferably, the quick-change bracket is provided with a plurality of battery accommodating grooves with downward openings in the length direction or the width direction of the vehicle body of the battery replacement vehicle, each battery accommodating groove accommodates one battery pack, and the first buffer structure is arranged between each battery pack and the corresponding battery accommodating groove.

In this scheme, a battery holding tank holds a battery package for every battery package all has independent installation space, can not collide each other or extrude.

Preferably, the quick change assembly still includes locking means and the locking piece of vertical setting, locking means with the locking piece sets up respectively in every in the battery holding tank and every on the long limit and/or the minor face lateral wall of battery package, the locking piece with locking means along the cooperation of vertical direction will the battery package can dismantle connect in on the quick change support through the pearl locking mode that rises.

In this scheme, the connection stability of battery package and quick change support can be guaranteed to locking mechanism and locking piece. The opening of battery holding tank is downward, and when the installation battery was wrapped, locking mechanism and locking piece along vertical direction cooperation locking were lifted to battery package and battery holding tank along vertical direction relative motion, are convenient for combine together battery package and the vertical relative motion's of battery holding tank process and locking mechanism and the vertical locking process of locking piece, improve locking efficiency. The locking piece and the locking mechanism correspond to the side wall of the battery pack, the overall height of the quick-change assembly is prevented from being influenced by the locking piece and the locking mechanism, the battery-replacing assembly is compact in structure, and the quick-change assembly is convenient to arrange on the battery-replacing vehicle.

Preferably, the number of the locking pieces is a plurality of, and a plurality of the locking pieces are arranged on the long side wall and/or the short side wall of the two sides of the battery pack at intervals.

In this scheme, after locking piece and locking mechanism locking, the locking piece can play the effect that supports the battery package, and the locking piece interval sets up in the both sides of battery package, further improves the connection stability of battery package and quick change support.

Preferably, a plurality of first buffer structures are arranged on the long side wall of the battery pack.

In this scheme, set up a plurality of first buffer structure on the battery package, can realize the many places anticollision of battery package, further prevent that the battery package from appearing damaging.

Preferably, the first buffer structures are also arranged on the short side walls of the battery pack, and the number of the first buffer structures on the long side walls of the battery pack is more than that of the first buffer structures on the short side walls of the battery pack.

In this scheme, set up first buffer structure at the interval all around of battery package, can all play the buffering guard action to battery package all around, can avoid because the vehicle rocks, slows down etc. and causes the battery package to remove to the condition that leads to battery package and quick change support direct collision takes place, and buffering effect is better. And because the impact force that the long limit of installation locking piece received is great, through setting up more first buffer structure in this side to guarantee that buffering effect is good.

Preferably, a plurality of third buffer structures are arranged on the side wall and/or the top of the battery pack, and the third buffer structures are used for buffering in the vertical direction.

In this scheme, set up the third buffer structure in order to carry out the buffering of vertical direction at the lateral wall and/or the top of battery package, avoid the impact of vertical direction to cause the removal of battery package or collide with other structures on the vehicle. Set up third buffer structure at the top of battery package, vertical impact alleviates effectually, sets up third buffer structure at the lateral wall of battery package to reduce or avoid taking vertical space to lead to the vertical size grow of quick change assembly, the installation of the battery package on the vehicle of being convenient for. Be equipped with first buffer structure between battery package and the battery holding tank in order to alleviate the impact of horizontal direction, set up the impact of third buffer structure in order to alleviate vertical direction again, form the multidirectional buffering protection to the battery package, buffering effect is better.

Preferably, the locking member is disposed at a middle lower portion of a long side wall of the battery pack.

In this scheme, through setting up the well lower part at the battery package with the locking piece for the tie point of battery package and quick change support moves down, thereby improves the stability of battery package locking after on the quick change support. The contact area between the battery pack and the quick-change bracket can be increased by the arrangement, so that more spaces are provided for arranging the first buffer structure.

Preferably, the locking piece and the first buffer structure at least partially overlap in the height direction.

In this scheme, because the impact force that lock piece department received is great, overlap with first buffer structure at least part in the direction of height through the lock piece to improve the buffering effect of lock piece department, guarantee the connection stability of battery package and quick change support.

Preferably, the locking member and the first buffer structure are located at the same height.

In this scheme, can further guarantee the buffering effect of lock piece department, guarantee the connection stability of battery package and quick change support.

Preferably, the first buffer structure comprises an elastic member connected to the battery pack or the quick-change holder.

In the scheme, the elastic component is used for preventing rigid collision between the battery pack and the quick-change support, elastic buffering is achieved, movement of the battery pack relative to the quick-change support is limited, and damage to the battery pack is prevented.

Preferably, the first buffer structure further comprises a limiting member, and the limiting member and the elastic member are arranged in one-to-one correspondence and are respectively arranged on the battery pack and the quick-change bracket;

when the battery pack is installed on the quick-change bracket, the elastic component props against the limiting component.

In this scheme, through stop member and elastic component cooperation, further restrict the removal of battery package for quick change support, prevent that the battery package from damaging.

Preferably, a battery end water joint is arranged on the top of the battery pack, a vehicle end water joint is arranged on the quick-change bracket, and after the battery pack is connected to the quick-change bracket, the battery end water joint is in butt joint communication with the vehicle end water joint.

In this scheme, install battery end water swivel at the top of battery package, can avoid battery end water swivel to occupy the space of battery package lateral part for the lateral part of battery package can have the first buffer structure of more space installation, improves buffering effect. When the battery pack is installed on a battery replacing vehicle through upward movement in the vertical direction, the battery end water joint and the vehicle end water joint are in butt joint communication in the vertical direction and can be combined with the battery pack lifting process, and the installation efficiency of the battery pack is improved.

Preferably, a battery end electric connector is arranged on the top of the battery pack, a vehicle end electric connector is arranged on the quick-change bracket, and when the battery pack is connected to the quick-change bracket, the battery end electric connector is in butt joint communication with the vehicle end electric connector.

In this scheme, install battery end electric connector at the top of battery package, can avoid battery end electric connector to occupy the space of battery package lateral part for the lateral part of battery package can have the first buffer structure of more space installations, improves buffering effect. When the battery pack is installed on a battery replacing vehicle through upward movement in the vertical direction, the battery end electric connector and the vehicle end electric connector are in butt joint communication in the vertical direction and can be combined with the battery pack lifting process, and the installation efficiency of the battery pack is improved.

A battery replacement vehicle is provided with the quick replacement assembly in any one of the technical schemes.

In the scheme, the quick change assembly is installed on the battery replacement vehicle and used for supplying power to the battery replacement vehicle.

Preferably, the battery replacement vehicle is an electric truck.

Preferably, the battery replacement vehicle further comprises a vehicle beam, the quick-change support is connected with the vehicle beam of the battery replacement vehicle, the battery pack is located below the vehicle beam, and the battery pack is vertically mounted on the quick-change support from the bottom of the battery replacement vehicle in an expansion bead locking mode.

In the scheme, the quick-change assembly is installed on the quick-change bracket from bottom to top and then is installed on a vehicle beam of the electric vehicle.

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

by arranging the first buffer structure, a buffer effect can be achieved between the battery pack and the quick-change bracket, and the situation that the battery pack and the quick-change bracket are violently collided due to bumping or inertia factors when a vehicle runs is avoided, so that the battery pack is protected; the battery packs are arranged in a sub-packaging mode, so that the weight of a single battery pack is reduced, the battery packs are convenient to maintain and replace, and the quick change assembly is compact in structure due to the fact that the plurality of battery packs are arranged along the same direction; the quick-change bracket is detachably connected with the battery pack, so that the battery pack can be conveniently taken down to repair the battery pack or the quick-change bracket or replace the battery pack; the expansion bead locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Drawings

Fig. 1 is a schematic perspective view of a battery replacement vehicle according to embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of a battery pack according to embodiment 1 of the present invention.

Fig. 3 is a schematic top view of a battery pack according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of a first buffer structure according to 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 schematic perspective view of a stopper member according to embodiment 1 of the present invention.

Fig. 7 is a schematic structural diagram of a locking assembly according to embodiment 1 of the present invention.

Fig. 8 is a schematic cross-sectional structure view of a locking assembly according to embodiment 1 of the present invention.

Fig. 9 is a bottom view of the locking assembly according to embodiment 1 of the present invention.

Fig. 10 is a schematic structural view of a battery pack according to embodiment 2 of the present invention.

Description of the reference numerals:

battery replacement vehicle 1

Length direction Y, width direction X, height direction Z

Quick-change support 11

Battery housing groove 111

Battery pack 12

Vehicle beam 13

First buffer structure 2

Elastic member 21

Mounting portion 211

Mounting hole 2111

Protrusion 212

Upper inclined surface 2121

Lower inclined surface 2122

Left inclined plane 2123

Right inclined surface 2124

Free end 213

Engaging part 214

Stop member 22

Positioning surface 221

Guide surface 222

Connecting surface 223

Bottom wall 224

Sidewall 225

Slide channel 226

Cambered surface 231

Lower arc surface 232

Upper cambered surface 233

Arc-shaped guide surface 234

Locking assembly 3

Locking mechanism 31

Lock holder 311

Locking piece 32

Connecting piece 321

Mounting hole 3211

Mounting sleeve assembly 322

First mounting sleeve 3221

Second mounting sleeve 3222

Locking body 323

Outer casing 3231

Shell limiting step 32311

Limiting bump 32312

Locking ball 3232

Drive rod 3233

Drive ball 3234

Mounting sleeve stop 324

First limit step 3241

Second limit step 3242

Limiting groove 32421

Battery terminal water joint 41

Battery end electrical connector 42

Vehicle end electrical connector 43

Adapter bracket 5

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to fig. 3, the present embodiment discloses a quick-change assembly, which includes a quick-change bracket 11 and a battery pack 12 detachably connected to the quick-change bracket 11, where the quick-change bracket 11 is installed on a battery-change vehicle 1 and is used to connect the battery pack 12 with the battery-change vehicle 1, and the battery pack 12 is a rectangular body and is used to supply power to the battery-change vehicle 1. Fig. 1 shows the installation of a battery pack 12 on a battery replacement vehicle 1.

As shown in fig. 1, the number of the battery packs 12 in this embodiment is three, and the three battery packs 12 are arranged in the width direction (X direction) of the vehicle body, so that the battery packs 12 can be mounted and dismounted conveniently. The present embodiment performs sub-packaging setting on the battery packs 12, reduces the weight of a single battery pack 12, and when a single battery pack 12 is damaged, only the damaged battery pack 12 needs to be repaired or replaced correspondingly.

In other alternative embodiments, a plurality of battery packs 12 may be arranged along the same direction other than the width direction of the vehicle body, for example, the length direction (Y direction) of the vehicle body, so as to facilitate the mounting and dismounting of the battery packs 12.

As shown in fig. 1 to fig. 3, a first buffer structure 2 is disposed between the battery pack 12 and the quick-change bracket 11, and the first buffer structure 2 can buffer the battery pack 12 and the quick-change bracket 11, so as to avoid a situation that the battery pack 12 and the quick-change bracket 11 are violently collided due to bumping or inertia factors during the operation of the battery replacement vehicle 1, and protect the battery pack 12. The battery pack 12 in fig. 2 and 3 only shows the outline of the battery pack 12, and the lock member is omitted.

Specifically, the quick-change holder 11 has three battery receiving grooves 111 with openings facing downward in the width direction of the vehicle body, and each battery receiving groove 111 receives one battery pack 12, so that each battery pack 12 has an independent mounting space and does not collide or press against each other. First buffer structures 2 are arranged between each battery pack 12 and the corresponding battery accommodating groove 111, so that each battery pack 12 is guaranteed to play a buffer role relative to the quick-change bracket 11, and damage to the battery pack 12 is further prevented.

In other alternative embodiments, if a plurality of battery packs 12 are arranged along the length direction of the vehicle body, the quick-change bracket 11 is provided with a plurality of battery receiving grooves 111 in the length direction of the vehicle body.

As shown in fig. 4-6, the first buffer structure 2 includes a plurality of elastic members 21 and a plurality of limiting members 22, the number of the elastic members 21 is the same as that of the limiting members 22, the elastic members 21 and the limiting members 22 are disposed in a one-to-one correspondence, the elastic members 21 are connected to the inner side wall of the battery accommodating groove 111, and the limiting members 22 are connected to the outer side wall of the battery pack 12. When the battery pack 12 is mounted on the quick-change holder 11, the elastic member 21 abuts against the stopper member 22. The elastic member 21 is made of an elastic material, the elastic member 21 is used for preventing rigid collision between the battery pack 12 and the quick-change bracket 11, elastic buffering is achieved, the limiting member 22 is matched with the elastic member 21, movement of the battery pack 12 relative to the quick-change bracket 11 is limited, and damage to the battery pack 12 is prevented.

In other alternative embodiments, the position-limiting members 22 are connected to the inner side wall of the battery accommodating groove 111, and the elastic members 21 are connected to the outer side wall of the battery pack 12. Alternatively, a part of the elastic member 21 and a part of the stopper member 22 may be connected to the inner wall of the battery housing groove 111, and a corresponding part of the stopper member 22 and a corresponding part of the elastic member 21 may be connected to the outer wall of the battery pack 12.

As shown in fig. 4 to 6, the elastic member 21 includes a mounting portion 211 for mounting the elastic member 21 to the inner side wall of the battery receiving groove 111, and a protrusion portion 212 that extends convexly with respect to the mounting portion 211 in a direction away from the inner side wall of the battery receiving groove 111. A groove is formed in a surface of the protrusion 212 facing the battery accommodation groove 111, and when the elastic member 21 is attached to the quick-change holder 11, a gap defined by the groove is provided between the protrusion 212 and an inner wall surface of the battery accommodation groove 111. When the battery pack 12 is mounted in the quick-change holder 11, the projection 212 is deformed toward the inner side wall of the battery receiving groove 111.

The protrusion 212 has an upper inclined surface 2121 and a lower inclined surface 2122 which are oppositely arranged and inclined from the protrusion end of the protrusion 212 to the mounting portion 211, and a left inclined surface 2123 and a right inclined surface 2124 which are oppositely arranged and inclined from the protrusion end of the protrusion 212 to the mounting portion 211, and these inclined surfaces make the protrusion 212 have better elasticity and better guidance. By providing the upper and lower inclined surfaces 2122 and the left and right inclined surfaces 2124 on the protrusion 212, contact and guidance between the elastic member 21 and the stopper member 22 are facilitated during the process of mounting the battery pack 12 on the quick-change holder 11, so that resistance during relative movement between the two is reduced, and the efficiency of mounting and dismounting the battery pack 12 is improved.

As shown in fig. 4 and 5, in the present embodiment, the elastic member 21 includes two protruding portions 212 distributed along the vertical direction (Z direction), the mounting portion 211 is provided between the two adjacent protruding portions 212, and the elasticity thereof can be better ensured by providing a plurality of protruding portions 212. In other alternative embodiments, the number of the protruding portions 212 may be one or more, and the mounting portion 211 may be disposed between two adjacent protruding portions 212 or disposed at an end portion of the elastic member 21.

As shown in fig. 5, the upper end of the elastic member 21 is a free end 213, and the free end 213 is connected to one side of the upper inclined surface 2121 of the protrusion 212. The free end 213 may have a plate-like structure that is attached to the inner wall surface of the battery accommodation groove 111, or the free end 213 may have a plate-like structure that has a certain gap from the battery accommodation groove 111.

As shown in fig. 5, the lower end of the elastic member 21 is provided with an engaging portion 214, the engaging portion 214 is formed to be bent toward the inner wall of the battery housing groove 111 of the battery replacement vehicle 1, and the engaging portion 214 is engaged with the inner wall of the battery housing groove 111. Alternatively, the engaging portion 214 may be formed in a hook shape that hooks the lower surface of the inner side wall of the battery receiving groove 111, thereby facilitating the positioning and mounting of the elastic member 21 with respect to the battery receiving groove 111 and also further restricting the movement of the elastic member 21 with respect to the quick-change holder 11. The junction of the engaging portion 214 and the protrusion 212 is an arc 231, and when the position-limiting member 22 is engaged from below the elastic member 21, the arc 231 facilitates the engagement of the position-limiting member 22, and prevents the interference of the bottom structure of the elastic member 21 with the upward movement of the position-limiting member 22.

In other alternative embodiments, the engaging portion 214 may have other shapes that can engage with the inner wall of the battery accommodating groove 111. Further, a corresponding groove or the like may be provided in the inner side wall of the quick-change holder 11 to engage with the engaging portion 214.

In other alternative embodiments, the engaging portion 214 may not be provided, so that the upper and lower ends of the elastic member 21 are both the free ends 213. Alternatively, the engaging portion 214 may be provided at the upper end of the elastic member 21, and the lower end of the elastic member 21 may be the free end 213. Alternatively, the engaging portions 214 may be provided at both upper and lower ends of the elastic member 21.

As shown in fig. 4 and 5, the mounting portion 211 is provided with a mounting hole 2111, and a fastener is inserted into the mounting hole 2111 of the mounting portion 211 to connect to the quick-change holder 11. In other alternative embodiments, the mounting portion 211 may be fixed to the quick-change holder 11 in other ways.

As shown in fig. 6, the position-limiting member 22 includes a positioning surface 221 and a guide surface 222, the positioning surface 221 is used for abutting against the elastic member 21, and the guide surface 222 extends and protrudes outward from the positioning surface 221. Specifically, the position limiting member 22 in this embodiment includes two guiding surfaces 222, the two guiding surfaces 222 are respectively disposed on two sides of the positioning surface 221, and extend in the vertical direction, and a sliding channel 226 for the elastic member 21 to slide into is formed between the guiding surfaces 222 and the positioning surface 221. A connecting surface 223 is disposed between the guiding surface 222 and the positioning surface 221, and the connecting surface 223 is an arc-shaped surface to facilitate processing and make the guiding surface 222 smoothly extend to the positioning surface 221.

In other alternative embodiments, the stop member 22 may also include more than three guide surfaces 222 to facilitate guiding of the resilient member 21.

As shown in fig. 6, the stopper member 22 includes a bottom wall portion 224 and side wall portions 225 provided on both sides of the bottom wall portion 224, the guide surfaces 222 are opposite surfaces of the side wall portions 225, and the two side wall portions 225 and the bottom wall portion 224 enclose a slide passage 226 extending in the vertical direction. The bottom and the top of the side wall part 225 in the vertical direction are provided with a lower arc surface 232 and an upper arc surface 233 which are used for guiding the limiting member 22 to be limited against the elastic member 21 on the quick-change bracket 11, so that the limiting member 22 can enter the gap between the battery pack 12 and the quick-change bracket 11. The bottom and top of the bottom wall portion 224 are provided with arc-shaped guide surfaces 234 for guiding the elastic member 21 in contact with each other against the positioning surface 221.

As shown in fig. 6, the upper arc surface 233 and the lower arc surface 232 not only form an arc extending along the width direction of the vehicle body, but also form an arc along the length direction of the vehicle body, and by setting the respective edges or angles of the position-limiting member 22, i.e., the side wall portion 225 and the bottom wall portion 224, as the arc 231 structure, on one hand, the contact guiding between the position-limiting member 22 and the elastic member 21 is facilitated, and the abrasion between the two is reduced, on the other hand, the position-limiting member 22 is facilitated to enter a narrow space between the battery pack 12 and the quick-change bracket 11, and the situation that the position-limiting member 22 cannot enter a gap between the quick-change bracket 11 and the battery pack 12 due to a slight position deviation between the battery pack 12 and the quick-change bracket 11 is avoided, so that the installation efficiency of the battery pack 12 is low.

When the battery pack 12 is loaded into the quick-change holder 11, the stopper member 22 is moved in the vertical direction, and the elastic member 21 is pressed by the stopper member 22 to be deformed. The upper and lower inclined surfaces 2122 of the protrusion 212 of the elastic member 21 are used for guiding the limiting member 22 and the protrusion 212 of the elastic member 21 to press and limit, so that friction and abrasion on the protrusion 212 in the up-and-down movement process of the limiting member 22 are reduced, the limiting member 22 moves up and down smoothly, the clamping part 214 of the elastic member 21 bends towards the direction of the quick-change bracket 11, the upward movement of the limiting member 22 and the extrusion and limiting of the protrusion 212 of the elastic member 21 are facilitated, and the upward movement of the limiting member 22 is prevented from being interfered. The left and right inclined surfaces 2124 of the elastic member 21 engage with the side wall portion 225 of the stopper member 22 to facilitate the entry of the elastic member 21 into the stopper member 22.

In other embodiments, the first buffer structure 2 may be different from the structure of the present embodiment as long as the impact between the battery pack 12 and the quick-change holder 11 can be relieved. In other embodiments, the first cushioning structure 2 may comprise only the elastic member 21.

In other alternative embodiments, the first buffer structure 2 in this embodiment may also be a positioning module in chinese utility model patent CN202022876046.3 or chinese utility model patent CN 202022876031.7. The positioning module can be independently arranged on the battery pack 12 or the quick-change bracket 11, and the positioning module is used for guiding and buffering when the battery pack 12 is vertically hung on the quick-change bracket 11. Specifically, at the in-process that battery package 12 lifted, orientation module can lead battery package 12 for the horizontal position of quick change support 11, improves battery package 12 for the location effect of quick change support 11, promotes stability between them, avoids trading electric vehicle 1 driving in-process, because clearance between battery package 12 and the quick change support 11 leads to battery package 12 to rock about, guarantees the stability and the security of battery package 12 installation.

In other alternative embodiments, the first buffer structure 2 in this embodiment may also be a positioning component and an unlocking component in chinese utility model patent CN 201821166612.8. The locating component can be independently arranged on the battery pack 12 or the quick-change support 11, the locating component is used for playing a role in guiding and buffering when the battery pack 12 and the quick-change support 11 are vertically hung, and the unlocking part is matched with the locating component to reset the locating component and further guide and limit the battery pack. Specifically, in the process of lifting the battery pack 12, the positioning assembly is matched with the unlocking part to guide and limit the position of the battery pack 12 in the length direction and the width direction of the vehicle body, so that the positioning effect of the battery pack 12 relative to the quick-change support 11 is improved.

Further, a second buffer structure is provided between the adjacent battery packs 12 for avoiding collision between the battery packs 12 and the battery packs 12 due to bumping or inertia factors when the vehicle is running. The second buffer structure is made of a foam material having elasticity, and is disposed on a side wall of the battery pack 12 near a side of the adjacent battery pack 12. In this embodiment, the second buffer structure is the same as the first buffer structure 2. In other embodiments, the second buffer structure may also be other structures having a buffering function.

Further, a plurality of third buffer structures are provided on the side wall and/or the top of the battery pack 12 for buffering in the vertical direction, and the third buffer structures can abut against the quick-change bracket 11 or the vehicle beam 13. Be equipped with first buffer structure 2 between battery package 12 and the battery holding tank 111 in order to alleviate the impact of horizontal direction, set up the impact of third buffer structure in order to alleviate vertical direction again, form the multidirectional buffering protection to battery package 12, the buffering effect is better. The specific structure of the third buffer structure may be the same as that of the first buffer structure 2, but the third buffer structure is adaptively adjusted with respect to the installation position of the battery pack 12, so that the third buffer structure can alleviate the impact in the vertical direction. In other embodiments, the third buffer structure may also be other structures having a buffer function, such as a rubber structure, a spring structure, and other structures having elasticity, and may also be other structures capable of alleviating vertical impact in the prior art.

The embodiment discloses a locking assembly 3 locked by an expansion bead, which is used for detachably connecting a battery pack 12 and a quick-change bracket 11, and the specific structure is shown in fig. 7-9.

As shown in fig. 7-9, the present embodiment discloses a locking assembly 3, the locking assembly 3 includes a locking member 32 and a locking mechanism 31, the locking member 32 is mounted on the battery pack 12, and the locking mechanism 31 is mounted on the frame 13 or the quick-change bracket 11 of the electric vehicle 1; or the locking mechanism 31 is installed on the battery pack 12, and the locking piece 32 is installed on the vehicle beam 13 of the battery replacement vehicle 1 or the quick-change bracket 11.

Specifically, the locking mechanism 31 includes a lock holder 311, and a locking groove matched with the locking member 32 is arranged in the lock holder 311; the locking member 32 includes a connecting member 321, an installation sleeve assembly 322, and a locking body 323, where the connecting member 321 is used to connect the battery pack 12, or the quick-change bracket 11, or the vehicle beam 13, the connecting member 321 has an installation hole 3211, the installation sleeve assembly 322 is sleeved on the locking body 323, the locking body 323 is installed in the installation hole 3211 through the installation sleeve assembly 322, and the locking body 323 can be relatively locked or disengaged with the lock seat 311 of the locking mechanism 31.

The locking body 323 includes a housing 3231, a driving rod 3233, and an expansion bead, and the driving rod 3233 is disposed in the housing 3231 and can be lifted or rotated in a vertical direction with respect to the housing 3231. The expansion ball comprises a driving ball 3234 and a plurality of locking balls 3232, the driving ball 3234 is arranged on the top of a driving rod 3233, the housing 3231 has a first channel arranged in the vertical direction, and a second channel arranged along the circumference of the first channel, the second channel penetrates through the housing 3231 and is communicated with the first channel, the driving rod 3233 is arranged in the first channel of the housing 3231, the driving rod 3233 and the driving ball 3234 are used for driving the locking ball 3232 to move between a first position and a second position relative to the housing 3231, and when the locking ball 3232 is arranged in the first position, the locking ball 3232 partially extends out of the second channel of the housing 3231 and is locked with a lock seat 311 of the locking mechanism 31. When the locking ball 3232 is in the second position, the locking ball 3232 is positioned in the second channel of the housing 3231 and is disengaged from the latch seat 311 of the latch mechanism 31.

The driving rod 3233 indirectly drives the locking ball 3232 to enter the locking groove for locking through the driving ball 3234, so that the requirements on the structures and mutual positions of the expansion balls and the driving rod 3233 are reduced, the structure of a single part is simplified, and flexible arrangement of parts is facilitated. In other embodiments, the harmomegathus bead may include only locking ball 3232; for example, the end of drive rod 3233 may be tapered, with the tapered surface of drive rod 3233 directly contacting locking ball 3232 to force the locking ball into the locking groove.

Preferably, the number of the locking balls 3232 is multiple, and the multiple expansion bead locking balls are uniformly distributed along the circumferential direction of the driving rod 3233, so that the expansion bead locking balls and the lock base are stressed in a balanced manner when locked. In the present embodiment, the number of the locking balls 3232 is four, and the locking balls are distributed along the circumferential direction of the driving rod 3233, so that the force applied to the locking mechanism 3 is balanced after locking. In other embodiments, the number of locking balls 3232 may be different from this embodiment.

Preferably, the locking member is further provided with a driving portion (not shown in the figures), and the driving portion drives the driving rod 3233 to move up and down or rotate along the vertical direction, so that the locking ball 3232 abuts against the lock holder 311 to be locked or is separated from the lock holder to be unlocked, and the operation is convenient.

The driving rod 3233 is disposed in the housing 3231, and the housing 3231 can protect the driving rod 3233 and reduce or prevent the driving rod 3233 from being impacted. Preferably, in the present embodiment, the driving rod 3233 and the housing 3231 are engaged by threads, so that the driving rod 3233 can be lifted or rotated smoothly in a vertical direction to smooth a locking and unlocking process. Meanwhile, the thread matching also has a self-locking function, so that automatic unlocking is avoided to a certain extent.

In this embodiment, the driving ball 3234 is preferably a solid ball, and is uniformly stressed and not easily damaged by the driving ball 3234 pushing the locking ball 3232 to the locking position of the lock seat 311, so that the locking is simple and reliable. In other embodiments, a groove mounting spring and a locking ball 3232 may be disposed in the driving rod 3233, the locking ball 3232 presses the spring to be located in a groove on the circumference of the driving rod 3233 in the unlocking state, the groove of the driving rod 3233 corresponds to a locking groove of the lock seat in the locking state, and the locking ball 3232 abuts against the locking groove of the lock seat 311 under the elastic force of the spring.

The mounting sleeve assembly 322 includes a first mounting sleeve 3221 and a second mounting sleeve 3222, wherein a first thread section is disposed on an outer surface of the first mounting sleeve 3221, and a second thread section matched with the first thread section is disposed on an inner surface of the second mounting sleeve 3222, so that the first mounting sleeve 3221 is in threaded connection with the second mounting sleeve 3222.

The locking and unlocking processes of the expansion bead type locking assembly 3 of the embodiment are as follows:

when the locking member 32 and the locking mechanism 31 need to be locked, the driving rod 3233 is screwed upwards, the driving rod 3233 jacks up the driving ball 3234, the driving ball 3234 further drives the locking ball 3232 to extend out of the housing 3231, and therefore the locking ball 3232 and the locking groove of the lock seat 311 of the locking mechanism 31 are mutually locked in a clamping mode.

When the lock member 32 and the lock mechanism 31 need to be unlocked, the drive rod 3233 is rotated reversely to lower the drive rod 3233, so that the acting force of the drive rod 3233 on the drive ball 3234 and the acting force of the drive ball 3234 on the lock ball 3232 can be sequentially released, and the lock ball 3232 is disengaged from the lock mechanism 31 to realize unlocking.

The locking member 32 further includes a mounting sleeve limiting part 324 disposed on the second mounting sleeve 3222, the mounting sleeve limiting part 324 includes a first limiting step 3241 and a second limiting step 3242, a housing 3231 of the locking body 323 is provided with a housing limiting step 32311, the housing limiting step 32311 is disposed between the first limiting step 3241 and the second limiting step 3242, a distance between opposite surfaces of the first limiting step 3241 and the second limiting step 3242 is equal to a thickness of the housing limiting step 32311, further, the second limiting step 3242 is provided with a limiting groove 32421, the housing limiting step 32311 is provided with a limiting bump 32312, and the limiting bump 32312 is disposed in the limiting groove 32421 so that the second limiting step 3242 is in fit connection with the housing limiting step 32311.

Preferably, in the present embodiment, the second limit step 3242 is fixed to the first limit step 3241 by a screw to form a detachable connection, so that the housing limit step 32311 of the housing 3231 is fixed between the first limit step 3241 and the second limit step 3242.

Preferably, the first limit step and the second limit step are detachably connected so as to fix the housing limit step of the housing between the first limit step and the second limit step.

The quick-change assembly further comprises an anti-rotation retaining structure, and the anti-rotation retaining structure is connected to the locking piece 32 and/or the lock holder 311 so as to prevent the expansion beads from moving relative to the lock holder 311. The anti-rotation retaining structure can avoid the movement of the expansion beads relative to the locking seat at the locking position, ensure the reliability of the locking piece and the locking mechanism, and further ensure the reliability of the connection of the battery pack 12 and the quick-change support 11.

The anti-rotation retaining structure can limit the movement of the expansion beads relative to the lock base 311 through one of the matching modes of ratchet, pawl, expansion beads, clamping and meshing. For example, holes may be formed in the driving rod 3233 and the housing 3231, and the plug may be inserted into the holes to prevent the driving rod 3233 from rotating, thereby preventing rotation and backing; grooves or teeth extending along the axial direction can be formed in the driving rod 3233, and the driving rod 3233 can be prevented from rotating and stopping by meshing the grooves or teeth with other structures; an abutment may be provided to abut on the circumferential direction of the driving rod 3233 to prevent the driving rod 3233 from rotating. In other embodiments, the anti-rotation and anti-backing structure in the prior art can also be used to prevent the locking member 32 and the locking mechanism 31 from being unlocked by relative movement, and the anti-rotation and anti-backing structure can be modified if necessary.

In the embodiment, the locking or unlocking is realized by driving the expansion ball through the driving rod 3233, and the driving rod 3233 in the locking piece 32 realizes the rotation prevention and the backstopping through the cooperation with other structures. In other embodiments, the locking and unlocking of the locking mechanism 31 and the locking member 32 can also be realized by the movement of the lock holder 311 of the locking mechanism 31; correspondingly, the locking mechanism 31 and other structures can be matched to prevent rotation and stop, for example, a plug connector can be inserted into the lock seat 311 of the locking mechanism 31, an abutting part can be used to abut against the lock seat to prevent the lock seat 311 from moving, and a rotation and stop prevention mechanism in the prior art can be used to prevent the lock seat 311 from moving. In other embodiments, the locking mechanism 31 and the locking member 32 can cooperate with other structures to achieve locking, such as inserting the plug into the lock holder 311 and the driving rod 3233 simultaneously.

In the present embodiment, the lock member 32 is provided on the battery pack 12, and the lock mechanism 31 is provided on the quick-change holder 11. The locking mechanism 31 may also be provided on the vehicle beam 13 in other embodiments; alternatively, the lock 32 is disposed on the quick-change bracket 11 or the vehicle beam 13, and the lock mechanism 31 is disposed on the battery pack 12.

Specifically, the lock member 32 may be directly mounted on the battery pack 12 or mounted on a flange of the battery pack 12, or the lock member 32 may be mounted on the battery pack 12 via the adaptor bracket 5 (see fig. 10 of embodiment 2). The adaptor bracket 5 may be unitary, with a plurality of latches 32 mounted on the same adaptor bracket 5; the adapter bracket 5 can also be split, one adapter bracket being provided with a locking member 32.

Preferably, in this embodiment, the locking piece 32 is disposed in the middle of the battery pack 12, and the locking piece 32 penetrates through the battery pack 12, so that the load is uniformly distributed on the battery pack 12, the deformation of the battery pack 12 is effectively avoided, the stability and the anti-seismic performance of the battery pack 12 are greatly improved, and the stability of the connection between the battery pack 12 and the quick-change bracket 11 is favorably ensured. In other embodiments, the locking member 32 and the locking mechanism 31 may also correspond to other positions of the battery pack 12, as shown in fig. 10, the locking member 32 is disposed on the long side wall of the battery pack 12, so that the installation is convenient, and the structural shape of the battery pack 12 is not affected by the arrangement of the locking assembly 3.

Preferably, in this embodiment, the lock holder 311 is floatingly connected to the quick-change bracket 11 or the vehicle beam 13, and the floating connection can reduce the transmission of torque or vibration of the electric vehicle to the quick-change bracket 11 or the vehicle beam 13 when the electric vehicle is subjected to a steering twist or a bump, so that the influence of the torque or the vibration on the quick-change bracket 11 or the vehicle beam 13 is reduced. The overall manufacturing precision of the chassis and the manufacturing precision of the battery pack 12 are reduced, and the requirement for the positioning precision is reduced in the process of replacing the battery pack 12, so that the production process is simplified, and the production efficiency is improved. In other embodiments, the locking member 32 is floatingly connected to the battery pack 12, and the floating connection can reduce the transmission of torque or vibration of the vehicle to the battery pack 12 when the vehicle is subjected to a steering twist or a bump, so that the influence of the torque or the vibration on the battery pack 12 is reduced.

In other embodiments, the lock holder 311 is disposed on the battery pack 12, and the lock 32 is disposed on the quick-change bracket 11 or the vehicle body frame 13. Preferably, the lock holder 311 is disposed at a middle position of the battery pack 12, and the lock holder 311 penetrates the battery pack 12. Preferably, the lock holder 311 is floatingly connected to the battery pack 12, or the lock member 32 is floatingly connected to the quick-change bracket 11 or the vehicle body frame 13.

The locking mechanism 31 is disposed in the battery accommodating groove 111 of the quick-change holder 11 and the locking piece 32 is disposed on the long-side and/or short-side wall of the battery pack 12 according to the length and width dimensions of the battery pack 12. Every battery holding tank 111 and every battery package 12 all correspond and are provided with locking mechanism 31 and the locking piece 32 that the multiunit one-to-one set up, and a plurality of locking mechanism 31 set up on the both sides inside wall of battery holding tank 111 along the length direction interval of the automobile body of trading electric vehicle 1, and a plurality of locking piece 32 intervals set up on the long limit of both sides of battery package 12 and/or short side lateral wall to support battery package 12 from the both sides of battery package 12. The locking piece 32 and the locking mechanism 31 are matched with each other along the vertical direction (Z direction) to detachably connect the battery pack 12 to the quick-change support 11, so that the connection stability of the battery pack 12 and the quick-change support 11 is guaranteed, and meanwhile, the vertical process of lifting the battery pack 12 is combined with the vertical locking process, and the locking efficiency is improved. The locking piece 32 is mounted on the long side wall of the battery pack 12 in the embodiment because the space for mounting the locking piece 32 on the long side wall of the battery pack 12 is more, so that a greater number of locking pieces 32 can be mounted, and the connection stability between the battery pack 12 and the quick-change bracket 11 is further improved. In other embodiments, the locking member 32 may be disposed corresponding to the short side wall of the battery pack 12.

Preferably, the locking piece 32 is further disposed in the middle region of each battery pack 12, and the locking piece 32 is distributed in the edge region and the middle region of each battery pack 12, so that the load is uniformly distributed at each position of the battery pack 12, the deformation of the battery pack 12 is effectively avoided, and the stability and the anti-seismic performance of the battery pack 12 are greatly improved. Specifically, a locking member 32 is provided in the middle region to extend through the battery pack 12. The stress area between the locking piece 32 and the battery pack 12 is increased, the strength of connection between the locking piece 32 and the battery pack 12 is improved, and the risk that the locking piece 32 and the battery pack 12 fall off is reduced.

The locking piece 32 in this embodiment is installed on the upper portion of the long side wall of the battery pack 12, so that the lifting stroke of the battery pack 12 in the installation process can be shortened, and interference between the battery pack 12 and other structures on the battery replacement vehicle 1 can be avoided. In other alternative embodiments, the locking member 32 may also be disposed at the middle-lower portion of the long side wall of the battery pack 12, so as to move the connection point between the battery pack 12 and the quick-change bracket 11 downward, thereby improving the stability of the battery pack 12 after being locked on the quick-change bracket 11.

As shown in fig. 2 and 3, the first buffer structures 2 are disposed on the peripheral side walls of the battery pack 12. In this embodiment, the locking member 32 and the first buffer structure 2 are located at the same height, that is, the locking member 32 and the first buffer structure 2 are located at the same height position of the battery pack 12 in the vertical direction, where the fact that the locking member 32 and the first buffer structure 2 are located at the same height in this embodiment does not mean that the upper end of the locking member 32 is flush with the upper end of the first buffer structure 2, or the lower end of the locking member 32 is flush with the lower end of the first buffer structure 2, but means that the upper and lower ends of the locking member 32 are located in the region formed by the upper and lower ends of the first buffer structure 2, or the upper and lower ends of the first buffer structure 2 are located in the region formed by the upper and lower ends of the locking member 32. All play the buffering guard action around battery package 12, can avoid because trading electric vehicle 1 rocks, slows down etc. and cause battery package 12 to remove, leads to the condition of battery package 12 and quick change support 11 direct collision to take place, guarantees battery package 12 and quick change support 11's stability of being connected.

In other alternative embodiments, the locking element 32 may only partially overlap the first buffer structure 2 in the height direction, that is, the locking element 32 is partially located above the first buffer structure 2, or the first buffer structure 2 is partially located above the locking element 32, so as to improve the buffering effect at the locking element 32 and ensure the connection stability of the battery pack 12 and the quick-change bracket 11.

Specifically, be equipped with a plurality of first buffer structure 2 on the long limit lateral wall of battery package 12, be equipped with a first buffer structure 2 on the short limit lateral wall of battery package 12, set up a plurality of first buffer structure 2 on battery package 12, can realize the collision avoidance of many places of battery package 12, further prevent that damage from appearing in battery package 12. Moreover, because the long side of the installation locking piece 32 is subjected to a large impact force, as shown in fig. 2 and 3, the number of the first buffer structures 2 on the long side wall of the battery pack 12 is greater than the number of the first buffer structures 2 on the short side wall of the battery pack 12, so as to ensure the buffer performance.

In other alternative embodiments, a plurality of first buffer structures 2 may be disposed on the short side wall of the battery pack 12, or one first buffer structure 2 may be disposed on the long side wall of the battery pack 12, or only the long side wall or the short side wall of the battery pack 12 may be disposed with the first buffer structure 2.

As shown in fig. 1-3, the embodiment further discloses that a battery end water joint 41 is provided on the top of the battery pack 12, and a vehicle end water joint (not shown) is provided on the quick-change bracket 11, and when the battery pack 12 is connected to the quick-change bracket 11, the battery end water joint 41 is in butt-joint communication with the vehicle end water joint. The vehicle-end water connector on the quick-change bracket 11 is connected with a cooling system of the battery replacement vehicle 1, and cooling liquid can flow into the battery pack 12 through the battery-end water connector 41 and the vehicle-end water connector to cool or preserve heat of the battery pack 12, so that the temperature of the battery pack 12 is always kept within a normal range, and normal power supply of the battery pack 12 is ensured.

In the embodiment, the battery end water joint 41 is installed at the top of the battery pack 12, and compared with the conventional technology in which the battery end water joint 41 is installed on the side wall of the battery pack 12, the battery end water joint 41 can be prevented from occupying the space at the side of the battery pack 12, and meanwhile, the battery end water joint 41 and the vehicle end water joint can be in butt joint communication in the vertical direction to be combined with the lifting process of the battery pack 12, so that the installation efficiency of the battery pack 12 is improved.

As shown in fig. 1-3, the present embodiment further discloses that a battery-end electrical connector 42 is disposed on the top of the battery pack 12, a vehicle-end electrical connector 43 is disposed on the quick-change bracket 11, and when the battery pack 12 is connected to the quick-change bracket 11, the battery-end electrical connector 42 is in butt-joint communication with the vehicle-end electrical connector 43. The vehicle-end electric connector 43 on the quick-change bracket 11 is connected with the circuit control unit of the battery replacement vehicle 1, so that the electric connection between the battery pack 12 and the battery replacement vehicle 1 is realized, and the battery pack 12 can supply power to the battery replacement vehicle 1.

In this embodiment, the battery end electrical connector 42 is installed at the top of the battery pack 12, and compared with the conventional technology in which the battery end electrical connector 42 is installed on the side wall of the battery pack 12, the battery end electrical connector 42 can be prevented from occupying the space of the side portion of the battery pack 12, and meanwhile, the battery end electrical connector 42 and the vehicle end electrical connector 43 are in butt joint communication in the vertical direction, so that the battery end electrical connector can be combined with the lifting process of the battery pack 12, and the installation efficiency of the battery pack 12 is improved.

As shown in fig. 1, the embodiment discloses a battery replacement vehicle 1, wherein a quick-change assembly is arranged on the battery replacement vehicle 1, and the quick-change assembly is used for supplying power to the battery replacement vehicle 1.

As shown in fig. 1, the battery replacement vehicle 1 in the present embodiment is an electric truck, a chassis of the electric truck is provided with a vehicle beam 13, a quick-change bracket 11 is mounted on the vehicle beam 13, and a battery pack 12 is mounted on the quick-change bracket 11 and located below the vehicle beam 13 so as to avoid interference with the vehicle beam 13. The quick-change bracket 11 can be fixed on the side surface of the vehicle beam 13 through a threaded connection and the like.

In the battery replacing process, the battery replacing equipment enters the chassis position of the electric truck, and the battery pack 12 is vertically installed and detached from the bottom of the electric truck, so that the battery pack 12 is installed on the quick-change support 11, or the battery pack 12 is detached from the quick-change support 11, and the battery replacing operation of the electric truck is realized. The vertical direction is a height direction (Z direction) of the electric vehicle 1.

Example 2

The difference between the present embodiment 2 and embodiment 1 lies in the arrangement of the locking member 32 and the first buffer structure 2 on the battery pack 12, and the same parts will not be repeated, and only different parts will be described.

As shown in fig. 10, the locking members 32 are disposed corresponding to the long side walls of the battery pack 12, and a plurality of first buffer structures 2 are disposed on the short side walls of the battery pack 12, thereby providing a good buffer function for the battery pack 12. Of course, the locking member 32 may also be installed on the short side wall of the battery pack 12, and the number of the first buffer structures 2 arranged on the short side wall of the battery pack 12 may also be greater than the number of the first buffer structures 2 arranged on the long side wall of the battery pack 12, so as to provide a good buffer function for the battery pack 12.

In the present embodiment, the lock 32 is mounted on the long side wall of the battery pack 12 via the adaptor bracket 5. In this embodiment, the adaptor bracket 5 is an integral structure, and a plurality of locking members 32 are mounted on the same adaptor bracket 5, so that the number of the adaptor brackets 5 is small, and the workload of processing and mounting is reduced; the integral adapter bracket 5 is convenient for installing other structures of the battery replacing vehicle 1; when the integrated adapter bracket is a hollow or grooved structure, the internal wiring or piping of the adapter bracket 5 can be arranged. In other embodiments, the adaptor bracket 5 may also be a split structure, one adaptor bracket 5 corresponds to one locking member 32, and the split adaptor bracket 5 has a small size, light weight and small occupied space.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships that are based on normal use of the device or assembly, and are used only for convenience of description and for simplicity of description, and do not indicate or imply that the device or assembly referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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

Claims

1. The quick-change assembly is characterized by comprising a quick-change support and a battery pack detachably connected to the quick-change support in an expansion bead locking mode, wherein the battery pack is multiple and is arranged along the same direction, and a first buffer structure is arranged between the battery pack and the quick-change support.

2. The quick-change assembly according to claim 1, further comprising a locking member and a locking mechanism, wherein the locking member comprises an expansion bead, the locking mechanism comprises a locking seat, and the expansion bead and the locking seat are detachably connected to achieve independent locking of the battery pack on a quick-change bracket or a vehicle beam of a vehicle.

3. The quick-change assembly according to claim 2, wherein the expansion bead is arranged on the battery pack, and the lock seat is arranged on the quick-change bracket or the vehicle beam; or the lock seat is arranged on the battery pack, and the expansion beads are arranged on the quick-change support or the vehicle beam.

4. The quick-change assembly according to claim 3, wherein the locking member or the lock holder is disposed at a middle position of the battery pack, and the locking member or the lock holder penetrates the battery pack.

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

6. The quick-change assembly according to claim 3, characterized in that the locking element or the locking bracket is floatingly connected to the quick-change holder or the vehicle beam.

7. The quick-change assembly according to claim 2, wherein the locking member further comprises an actuating rod, the expansion bead is disposed on the top of the actuating rod, the lock base has a locking groove, and the actuating rod is configured to be lifted or rotated in a vertical direction by an external mechanism to drive the expansion bead to abut against the locking groove for locking or to withdraw the expansion bead from the locking groove.

8. The quick-change assembly according to claim 7, wherein the expansion ball comprises a driving ball and a plurality of locking balls, the driving ball is arranged at the top of the driving rod, and the driving ball is used for being driven by the driving rod to ascend and descend in the vertical direction and driving the locking balls to enter the locking grooves for locking.

9. The quick-change assembly according to claim 8, wherein the locking member further comprises a housing, and the actuating rod is disposed within the housing and is vertically liftable or rotatable relative to the housing.

10. The quick-change assembly according to claim 9, wherein at least a portion of an outer peripheral surface of the drive rod is threadably engaged with at least a portion of an inner peripheral surface of the housing.

11. The quick-change assembly according to claim 9, wherein the housing has a first channel disposed in a vertical direction and a second channel disposed in a circumferential direction of the first channel, the second channel extending through the housing and communicating with the first channel, and the driving rod is adapted to be lifted or rotated in the first channel to push the locking ball from the second channel into the locking groove or to withdraw the locking ball from the locking groove.

12. The quick-change assembly according to claim 8, wherein the number of the locking balls is plural, and the plural locking balls are uniformly arranged along the circumferential direction of the driving rod.

13. The quick-change assembly according to claim 2, further comprising an anti-rotation anti-backup structure coupled to the locking member and/or the lock bracket to prevent relative movement between the expansion ball and the lock bracket.

14. The quick-change assembly according to claim 13, wherein the anti-rotation and anti-backing structure is configured to limit the movement of the expansion bead relative to the lock base by one of ratchet and pawl, expansion bead, snap fit, and engagement.

15. The quick-change assembly according to claim 1, wherein a plurality of the battery packs are arranged along a length direction or a width direction of a body of the electric vehicle.

16. The quick-change assembly according to claim 1, wherein a second buffer structure is provided between adjacent battery packs.

17. The quick-change assembly according to claim 1, wherein the quick-change bracket has a plurality of battery receiving grooves with downward openings along a length direction or a width direction of a vehicle body of the electric-change vehicle, each battery receiving groove receives one battery pack, and the first buffer structure is arranged between each battery pack and the corresponding battery receiving groove.

18. The quick-change assembly according to claim 17, further comprising a locking mechanism and a vertically arranged locking member, wherein the locking mechanism and the locking member are respectively arranged in each battery accommodating groove and on the long side wall and/or the short side wall of each battery pack, and the locking member and the locking mechanism are matched in the vertical direction to detachably connect the battery pack to the quick-change bracket through a bead-expanding locking manner.

19. The quick-change assembly according to claim 18, wherein the number of the locking members is multiple, and the locking members are arranged on the side walls of the long side and/or the short side of the battery pack at intervals.

20. The quick-change assembly according to claim 19, wherein a plurality of the first buffer structures are provided on the long-side wall of the battery pack.

21. The quick-change assembly according to claim 20, wherein the first buffer structures are also provided on the short-side walls of the battery pack, and the number of the first buffer structures on the long-side walls of the battery pack is greater than the number of the first buffer structures on the short-side walls of the battery pack.

22. The quick-change assembly according to any one of claims 19 to 21, wherein a plurality of third buffer structures are provided on the side walls and/or the top of the battery pack, the third buffer structures being configured for vertical buffering.

23. The quick-change assembly according to claim 18, wherein the locking member is disposed at a middle-lower portion of a long-side wall of the battery pack.

24. The quick-change assembly according to claim 18, wherein the locking member at least partially overlaps the first buffer structure in the height direction.

25. The quick-change assembly according to claim 18, wherein the locking member is at the same height as the first bumper structure.

26. The quick-change assembly according to claim 1, wherein the first buffer structure includes a resilient member that is coupled to the battery pack or the quick-change cradle.

27. The quick-change assembly according to claim 26, wherein the first buffer structure further comprises a limiting member, the limiting member and the elastic member are arranged in a one-to-one correspondence and are respectively arranged on the battery pack and the quick-change bracket;

28. The quick-change assembly according to claim 1, wherein a battery-end water connector is provided on a top portion of the battery pack, and a vehicle-end water connector is provided on the quick-change bracket, and the battery-end water connector is in butt-joint communication with the vehicle-end water connector when the battery pack is attached to the quick-change bracket.

29. The quick-change assembly according to claim 1, wherein a battery-end electrical connector is provided on a top portion of the battery pack, and a vehicle-end electrical connector is provided on the quick-change bracket, wherein the battery-end electrical connector is in butt-joint communication with the vehicle-end electrical connector when the battery pack is connected to the quick-change bracket.

30. A vehicle for replacing batteries, characterized in that a quick-change assembly according to any one of claims 1 to 29 is provided.

31. The battery replacement vehicle of claim 30, wherein the battery replacement vehicle is an electric truck.

32. The battery replacement vehicle as claimed in claim 30, further comprising a vehicle beam, wherein the quick-change bracket is connected with the vehicle beam of the battery replacement vehicle, the battery pack is located below the vehicle beam, and the battery pack is vertically mounted on the quick-change bracket from the bottom of the battery replacement vehicle in an expansion bead locking manner.