CN218558543U - Battery pack and battery replacing vehicle - Google Patents

Abstract

The utility model discloses a battery package and trade electric vehicle, the battery package includes: a box body; the locking piece is arranged at the top of the box body and is installed at the top of the box body through an installation frame; when the battery pack is locked on the battery replacing vehicle, the locking piece of the battery pack moves from bottom to top and is locked on a locking mechanism of the battery replacing vehicle in a T-shaped rotating locking mode. In the scheme, 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 electric vehicle positioned above can be in opposite positions in space, a vertical locking and unlocking mode is realized, and the locking and unlocking efficiency is improved; establish the lock piece at the box top for establishing the lock piece at bottom half or be close to the bottom, establish the lock piece at the box top, reduce the vibration impact that the in-process battery package received at the top of traveling more effectively. The battery pack and the battery replacement vehicle are reliably connected by locking in a T-shaped rotating mode.

Description

Battery pack and battery replacement vehicle

This patent application claims priority to chinese patent application No. 2022108370919 filed on 7/15/2022.

Technical Field

The utility model relates to an electric automobile technical field, in particular to battery package and trade electric vehicle.

Background

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

For the replaceable battery, after the replaceable battery is installed, the battery may fall off due to external factors such as instable installation or bumpy driving road of the vehicle, once the battery falls off, the replaceable battery is very dangerous for the driving vehicle, and the personal safety of personnel on the vehicle is directly threatened. Therefore, how to firmly lock the battery on the vehicle and efficiently disassemble and assemble the battery pack is a problem which needs to be solved urgently in order to ensure safety at the present stage. Among the prior art, the last battery package of electric automobile all sets up the top at the car roof beam, and the focus that leads to electric automobile is on the upper side to driving stability is relatively poor, and supply power to the vehicle through whole battery package in addition, and weight is heavier, when needs are changed the battery package, adopts top to hang equipment at present and change the battery package, and the battery package rocks easily and is difficult to aim at with electric automobile, leads to the battery package to change more difficultly, and then the efficiency of locking and unblock is lower.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to place the battery package at the automobile body for electric heavy truck or light truck vehicle among the overcome prior art and lead to trading the defect that the electricity is with high costs, trade the electricity inconvenient, provide a battery package and trade electric vehicle.

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

a battery pack, the battery pack comprising:

a box body;

the locking piece is arranged at the top of the box body and is installed at the top of the box body through an installation frame;

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

In the scheme, 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 electric vehicle positioned above can be in opposite positions in space, a straight-up and straight-down locking and unlocking mode is realized, and the locking and unlocking efficiency is improved; 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. In addition, the rotation locking mode is simple and reliable, locking is carried out through the T-shaped rotation mode, rotation of the structure for limiting the T-shaped rotation after locking is convenient, and therefore locking is reliable, and even if the battery pack is reliably connected with the battery replacement vehicle.

Preferably, the locking piece comprises a T-shaped locking rod, and the locking mechanism comprises a lock base;

or the locking piece comprises a lock seat, and the locking mechanism comprises a T-shaped lock rod;

the T-shaped lock rod and the lock seat are detachably connected to independently lock the battery pack on the battery replacement vehicle.

In the scheme, the T-shaped rotary locking of the battery pack and the battery replacing vehicle is realized through the matching of the T-shaped lock rod and the lock seat, and the structure is simple, reliable and convenient to realize.

Preferably, the T-shaped lock rod includes a shaft body, and further includes at least one hanging portion extending outward from one end of the shaft body, and the T-shaped lock rod is locked at the locking position of the lock base by rotation of the hanging portion.

In this scheme, the one end of portion of hitching from the axle body is outwards extended, and when T type locking lever was rotatory, hitching portion also rotated thereupon for hitching portion rotates between locking position and unblock position, thereby makes on T type locking lever can the locking and the lock seat, or with the unblock of lock seat.

Preferably, the T-shaped locking lever includes two hooking portions extending in opposite directions from one end of the shaft body, respectively.

In this scheme, T type locking lever includes along two portions of hitching the portion that extend in opposite direction for T type locking lever can increase the area of contact of T type locking lever and lock seat at two positions and lock seat contact, promotes the stability of locking. In addition, the two hanging parts extend along opposite directions, so that the locking balance can be improved; and when one of the hanging parts rotates in place during unlocking, the other hanging part also rotates in place along with the other hanging part, and the unlocking efficiency is improved.

Preferably, the T-shaped lock rod includes three hitching parts, the three hitching parts extend from one end of the shaft body along different directions, respectively, and an included angle is formed between the three hitching parts.

In this scheme, T type locking lever includes three hooking portion, has the contained angle between the three hooking portion, is convenient for through the rotation of restriction hooking portion in order to prevent automatic unblock behind the locking, makes the locking reliable and the atress balanced, can further promote the stability of locking for locking between battery package and the electric vehicle is more reliable and more stable.

Preferably, the T-shaped lock rod further comprises a locking portion disposed at the other end of the shaft body, and the locking portion is configured to limit rotation of the hanging portion relative to the lock seat when the hanging portion is located at the locking position of the lock seat.

In this scheme, through setting up locking portion, can avoid the unexpected rotation of T type locking lever when the locking, promote the reliability of locking for the stability of the electricity connection between battery package and the electric vehicle can promote.

Preferably, the anti-loosening part can limit the rotation of the hanging part relative to the lock seat through one of the matching modes of ratchet, pawl, expansion beads, clamping and meshing.

Preferably, the locking piece comprises a T-shaped locking rod, and the locking mechanism comprises a lock base; the T-shaped lock rod is arranged in the base and can lift or rotate along the vertical direction relative to the base.

In this scheme, the base has retrained the direction of motion of T type locking lever, makes T type locking lever lift or rotatory relatively the base, is used for holding the orientation of the cavity of T type locking lever through the configuration base for T type locking lever can be along vertical direction motion, promotes the degree of accuracy of locking and unblock.

Preferably, the T-shaped lock rod is further provided with a driving portion, and the driving portion is used for driving the hanging portion to lift or rotate along the vertical direction under the action of an external driving mechanism.

In this scheme, the drive division can drive T type locking lever motion under the effect of external actuating mechanism to realize the unblock and the locking of T type locking lever and lock seat.

Preferably, the lock base has a connecting channel extending in the vertical direction, and a clamping portion arranged adjacent to the connecting channel, the connecting channel is used for allowing the hanging portion to move upwards to a position corresponding to the clamping portion in the vertical direction, and the hanging portion is locked on the clamping portion through rotation.

In the scheme, the connecting channel can enable the hanging part to move to the clamping part along the vertical direction, so that the accuracy of locking and clamping of the hanging part is improved, and the smoothness of a locking process is improved; the hooking part can rotate to lock the clamping part, so that the battery pack can vertically move upwards to realize locking, and the locking mode is simple and can improve the reliability of locking.

Preferably, the clamping part is further provided with a guide surface, and the guide surface is arranged obliquely upwards or obliquely downwards from the connecting channel.

In this scheme, can hold portion department from the connecting channel direction to card through the spigot surface, the spigot surface and the horizontal plane that card held in the portion have certain angle, and the card of being convenient for is held portion and spigot portion and is formed the inclined plane auto-lock after the locking for the locking is reliable.

Preferably, the connecting channel is matched with the hanging part in shape.

In this scheme, structure more than adopting for the portion of hanging to meet can remove in interface channel, is favorable to going on smoothly of locking or unblock.

Preferably, the lock seat includes an outer base and an inner seat, the inner seat is in threaded connection with the outer base, and the inner seat is provided with a locking groove.

In this scheme, through set up the locked groove and T type locking lever cooperation on interior cassette for T type locking lever can go up and down along vertical direction simultaneously when following its axial rotation.

Preferably, the locking piece comprises a T-shaped locking rod, and the locking mechanism comprises a lock base; the locking piece comprises at least two T-shaped locking rods, and the at least two T-shaped locking rods are arranged at intervals along the same direction of the box body.

In the scheme, the locking piece adopts at least two T-shaped locking rods, and compared with the condition that only one T-shaped locking rod is arranged, more T-shaped locking rods bear the battery pack, so that the reliability and the stability of bearing the battery pack are facilitated. At least two T-shaped locking rods are arranged at intervals along the same direction of the box body, so that more T-shaped locking rods of the battery pack in the same direction of the box body bear the gravity of the battery pack, the battery pack is arranged at intervals, the stress of the battery pack at different positions is balanced, and the reliability of bearing the battery pack by the locking piece is improved.

Preferably, the T-shaped lock bars of each locking member are arranged at intervals along the extending direction of the long side of the box body.

In this scheme, compare in the minor face extending direction of box, the long limit extending direction of box has born the weight that the battery wrapped more, sets up the T type locking lever of every locking piece along the long limit extending direction interval of box, has born the weight of battery package more, avoids the box in its long limit extending direction's intermediate position department, leads to probably to produce flagging or deformation because of the bearing capacity that does not have T type locking lever to improve the reliability that the locking piece bore battery package.

Preferably, the T-shaped locking rods are arranged in parallel, and the axial direction of the T-shaped locking rods is perpendicular to the direction of the long edge of the box body.

In this scheme, mutual parallel arrangement for the horizontal angle of T type locking lever is unified between the arbitrary T type locking lever, thereby when making locking mechanism and locking piece carry out straight-up and straight-down motion, each locking mechanism is unified with the angle of pairing that corresponds the locking piece, reduces the possibility that the trouble is paird to the appearance.

Preferably, the upper surface of the box body is provided with a recessed structure, the locking piece is arranged in the recessed structure, and the connecting position of the T-shaped lock rod and the mounting frame is not higher than the upper surface of the box body.

In this scheme, the locking piece sets up in the sunk structure of box upper surface, compares in setting up T type locking lever in the upper surface of box, when the locking mechanism locking on T type locking lever and electric vehicle, can make the focus of battery package more be close to locking mechanism, promotes the stability of connecting, also can increase the distance between battery package and the ground, and the outside battery replacement equipment of being convenient for gets into the electric vehicle below and trades the electric operation.

Preferably, the recessed structure is a step arranged on two sides of the box body along the extending direction of the long edge of the box body.

In this scheme, regard as sunk structure with the step of the both sides of box, the processing of the box of being convenient for. In addition, set up the sunk structure in the long limit department of box for the locking piece can set up along the long limit of box, thereby can bear the weight of battery package more, promotes the reliability of locking piece to the bearing capacity and the locking of battery package.

Preferably, the recessed structure includes a step bottom surface and a step side wall, the height of the mounting bracket of the locking member is not greater than the height of the step side wall, and the width of the mounting bracket is not greater than the width of the step bottom surface.

In this scheme, highly setting up the mounting bracket into the height that is not greater than the step lateral wall for below the mounting bracket is in the top surface of box, and set up the width of mounting bracket into the width that is not greater than the step bottom surface, make the mounting bracket be in within the side of box, thereby the mounting bracket is not outstanding the side also not outstanding top surface, and then the mounting bracket does not produce the interference with peripheral structure.

Preferably, the battery pack further comprises an unlocking hole, the unlocking hole is arranged corresponding to the position of the locking piece, and the unlocking hole is used for allowing external equipment to pass through so as to unlock or lock the locking piece.

In this scheme, external equipment such as unlocking means can pass in order to act on the locking piece from the unlocking hole to realize the locking or the unblock of battery package.

Preferably, the battery pack further comprises a buffer member disposed on a side surface of the battery pack.

In the scheme, relative to the direction of the upper surface and the lower surface of the box body (namely the direction of jacking the battery pack), after the battery pack is installed on the electric vehicle, the vibration on the side surface (namely the horizontal direction) of the box body is larger, namely the box body is easy to collide with the electric vehicle, and the buffer part is arranged on the side surface of the box body along the direction of jacking the battery pack, so that the vibration of the battery pack in the horizontal direction is effectively buffered; and can be arranged on one or more side surfaces of the box body according to the requirements of different vibration buffers.

Preferably, the number of the buffer parts is multiple, and the multiple buffer parts are arranged on the box body along at least one horizontal direction;

when the same surface of the box body is provided with a plurality of the buffer parts, the plurality of buffer parts are arranged at intervals.

In this scheme, when being equipped with a plurality of bolster on the same surface of box, set up a plurality of bolster intervals, the vibration impact that receives is located to the different positions of balanced battery package, has improved buffering effect.

Preferably, the buffer member is disposed at an upper portion of the battery pack in a direction of lifting up the battery pack.

In this scheme, improve the setting height of bolster as far as possible to make the bolster be located between battery package and the electric vehicle by the setting in the horizontal direction, thereby realize the buffering between battery package and the electric vehicle, reduced electric vehicle's relevant cooperation structure downwardly extending's volume, the cost is reduced.

Preferably, the buffer member is circumferentially arranged on the side surface of the box body.

In this scheme, the bolster week is established on the side of box for all there is the bolster in the vehicle direction of travel of vehicle and the vehicle side of perpendicular to direction of travel, realized buffering the collision between electric vehicle and the battery package on a plurality of horizontal directions, it is more comprehensive to protect the battery package.

Preferably, the battery pack further comprises a battery pack end electric connector communicated with a vehicle end electric connector of the battery replacement vehicle, and the electric connector is arranged on the upper surface or the side surface of the box body along the direction of jacking the battery pack.

In the scheme, when the battery end electric connector is arranged on the side surface of the box body, the requirement of connecting the electric connector on the side surface can be met; when the battery end electric connector is arranged on the upper surface of the box body along the direction of jacking the battery pack, the battery end electric connector and the corresponding vehicle end electric connector on the electric vehicle form a vertical relative position relation, the battery pack lifting process is combined with the vertical connection process of the electric connector, so that the battery pack locking and unlocking can be met by adopting a vertical up-down movement mode, the electric connector can be plugged and pulled out simultaneously, and the battery pack installation efficiency is improved.

Preferably, the battery pack further comprises a battery pack end water port connected with a vehicle end water port on the battery replacing vehicle, and the battery pack end water port is arranged on the upper surface or the side surface of the box body along the direction of jacking the battery pack.

In the scheme, when the battery end connection water port is arranged on the side surface of the box body, the requirement of connecting the side surface with the water port can be met; when the battery end connecting water port is arranged on the upper surface of the box body along the direction of jacking the battery pack, the battery end connecting water port and the corresponding vehicle end water receiving port on the electric vehicle form a vertical relative position relation, and the battery pack lifting process is combined with the vertical connecting process of the water receiving port, so that the locking and unlocking of the battery pack can be met by adopting a vertical up-and-down movement mode, the plugging of the water receiving port is also realized, and the installation efficiency of the battery pack is improved.

The utility model provides a trade electric vehicle, trade electric vehicle includes automobile body, quick change support, locking mechanism and as above the battery package, quick change leg joint in the automobile body, just locking mechanism set up in on the quick change support, the battery package through its T type locking lever pass through the rotatory locking mode of T type with locking mechanism can dismantle connect in on the quick change support.

In the scheme, the electric vehicle adopts the battery pack to realize a straight-up and straight-down locking and unlocking mode; the reliability of the connection of the locking piece is improved, the vibration of the battery pack is reduced, and the service life of the locking piece is prolonged. In addition, the rotation locking mode is simple and reliable, locking is carried out through the T-shaped rotation mode, rotation of the structure for limiting T-shaped rotation after locking is convenient, so that locking is reliable, and even if the battery pack and the battery replacement vehicle are reliably connected.

Preferably, the battery replacement vehicle comprises a plurality of battery packs, the plurality of battery packs are arranged along the length direction of the battery replacement vehicle, and the long sides of the battery packs are perpendicular to the length direction of the battery replacement vehicle.

In this scheme, arrange a plurality of battery packages along electric vehicle's length direction to the length direction of the long limit perpendicular to electric vehicle of battery package, the length direction who has make full use of the vehicle has great space, can arrange more battery packages, has improved the utilization ratio in space and the capacity of battery package. The long side of the battery pack is perpendicular to the length direction of the electric vehicle, so that the long side of the box body with a large area can be used for bearing impact on the battery pack in the running direction of the vehicle, and the battery pack is protected.

Preferably, the battery pack is located below the quick-change bracket.

In this scheme, set up the battery package in the below of quick change support for the locking mechanism that is located the quick change support of top forms upper and lower relative position with the lock piece of the battery package that is located the below, and this electric vehicle has realized a concrete locking and unblock mode straight from top to bottom through adopting above-mentioned battery package, thereby has realized the mode of trading the electricity from the vehicle bottom.

Preferably, the battery replacement vehicle is an electric truck.

In this scheme, adopt the electric truck of above-mentioned battery package, realized locking and the unblock mode of straight-up straight down.

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

the structure of the T-shaped rotary locking mode, the quick-change battery and the battery-changing vehicle of the utility model can realize that the battery pack is arranged on the vehicle beam below the electric vehicle through the battery pack bracket, thereby the battery pack can be disassembled and assembled from the bottom of the electric vehicle, and the technical problems of high battery-changing cost and inconvenient battery changing caused by the fact that the battery pack is arranged above the vehicle body by an electric heavy truck or a light truck in the prior art can be effectively solved; and the volume and the weight of a single battery pack for quickly replacing the battery are smaller, the installation is convenient, and the requirement on the power exchange equipment is reduced. In addition, the rotation locking mode is simple and reliable, locking is carried out through the T-shaped rotation mode, rotation of the structure for limiting T-shaped rotation after locking is convenient, so that locking is reliable, and even if the battery pack and the battery replacement vehicle are reliably connected.

Drawings

Fig. 1 is a schematic structural diagram of an electric vehicle according to embodiment 3 of the present invention;

fig. 2 is a schematic structural diagram of a top view angle of a box body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bottom view angle of a box according to an embodiment of the present invention;

fig. 4 is an exploded view of a locking assembly provided in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a locking mechanism in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a locking assembly according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a lock member and a lock holder according to embodiment 1 of the present invention;

fig. 8 is a top view of the locking assembly of embodiment 1 of the present invention;

fig. 9 is a perspective view of the lock member and the base according to embodiment 1 of the present invention;

fig. 10 is an exploded view of a latch assembly according to another structural state of a latch according to embodiment 2 of the present invention;

fig. 11 is a schematic structural view of a buffer member and a limiting structure according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of an elastic member according to an embodiment of the present invention;

fig. 13 is a front view of an elastic member according to an embodiment of the present invention;

fig. 14 is a side view of an elastic member according to an embodiment of the present invention.

Description of the reference numerals

The battery pack 1, the box body 2, the long edge 111, the short edge 112, the step 22, the step bottom 221, the step side wall 222, the unlocking hole 23, the mounting rack 3,

the locking assembly 100, the locking member 200, the T-shaped locking rod 21, the shaft body 211, the hanging part 212, the anti-loosening part 213, the base 22, the outer base 2211, the inner holder 2212, the locking groove 2213, the locking mechanism 300, the locking holder 31, the connecting channel 32, the holding part 33, the guide surface 331,

the cushion member 20, the stopper member 101, the elastic member 201, the mounting portion 203, the mounting hole 204, the protrusion 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,

a battery end electric connector 4, a battery end water gap 5, a crossbeam 7 and a 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

The embodiment of the utility model provides a battery package 1, as shown in fig. 1, battery package 1 is used for being connected with electric vehicle to supply power to electric vehicle. The battery pack 1 is arranged at the bottom of the vehicle, so that external battery replacement equipment can enter the bottom of the electric vehicle, and battery replacement operation is facilitated.

As shown in fig. 2, the battery pack 1 includes: a box body 2; the locking piece 200 is arranged at the top of the box body 2, and the locking piece 200 is arranged at the top of the box body 2 through the mounting frame 3;

when the battery pack 1 is locked on the battery replacement vehicle, the locking piece 200 of the battery pack 1 moves from bottom to top and is locked on a locking mechanism 300 of the battery replacement vehicle in a T-shaped rotation locking mode.

In this embodiment, the locking member 200 is disposed at the top of the box body 2, so that the locking member 200 at the end of the battery pack 1 located below can be spatially opposite to the vehicle-end locking mechanism 300 of the electric vehicle located above, thereby realizing a straight-up and straight-down locking and unlocking manner, and improving the locking and unlocking efficiency; compared with 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 the vibration impact on the top of the battery pack 1 in the driving process is effectively reduced. In addition, the rotation locking mode is simple and reliable, locking is carried out through the T-shaped rotation mode, rotation of the structure for limiting T-shaped rotation after locking is convenient, and locking is reliable, even if the battery pack 1 and the battery replacement vehicle are connected reliably.

In the present embodiment, a structure of the T-shaped rotation locking system is disclosed, which can be described in the related art of patent publication No. CN114523833A, but it is needless to say that a specific structural form of the T-shaped rotation locking system is not limited to the one of patent publication No. CN114523833A, and may be other structural forms, and the specific structural form may not be limited.

For example, as a preferred embodiment, the present embodiment provides a structure of a more preferred T-shaped rotation locking manner, and in particular, as shown in fig. 4 to 9, a locking assembly 100, which is applied to a locking member 200 and a locking mechanism 300 in the T-shaped rotation locking manner, and the T-shaped rotation locking of the battery pack 1 and the electric vehicle is realized through the mutual cooperation of the locking member 200 and the locking mechanism 300, where the locking member 200 and the locking mechanism 300 are a T-shaped lock rod 21 and a lock seat 31, respectively; the specific types of the locking member 200 and the locking mechanism 300 can be selected according to the actual situations of the battery pack 1 and the electric vehicle, and the locking member 200 may be a T-shaped lock rod 21, the locking mechanism 300 may be a lock holder 31, or the locking member 200 may be a lock holder 31, and the locking mechanism 300 may be a T-shaped lock rod 21. When one of the T-shaped lock lever 21 and the lock holder 31 is provided on the battery pack 1, the other of the T-shaped lock lever 21 and the lock holder 31 is provided on the electric vehicle. The T-shaped lock rod 21 and the lock seat 31 are detachably connected to independently lock the battery pack 1 on the battery replacement vehicle. Therefore, the T-shaped rotary locking of the battery pack 1 and the battery replacing vehicle is realized through the matching of the T-shaped lock rod 21 and the lock seat 31, and the structure is simple, reliable and convenient to realize.

Specifically, in the present embodiment, as shown in fig. 2, the locking member 200 is a T-shaped lock bar 21 and is disposed on the top of the box body 2 of the battery pack 1. Accordingly, the locking mechanism 300 is a lock seat 31 and is disposed on the electric vehicle (not shown in the figure), specifically, the lock seat 31 is disposed on the quick-change bracket 8 and is located at the bottom of the electric vehicle.

As shown in fig. 4, the T-shaped lock lever 21 includes a shaft body 211, and at least one hanging part 212 extending outward from one end of the shaft body 211, and the T-shaped lock lever 21 is rotatably locked at the locking position of the lock base 31 by the hanging part 212. As shown in fig. 5, 7 and 8, the hanging part 212 rotates to the locking position of the lock base 31 and abuts against the lock base 31, so that the T-shaped lock lever 21 and the lock base 31 are locked, and the battery pack 1 is connected to the electric vehicle. As shown in fig. 6, when the hanging part 212 rotates to the unlocking position of the lock base 31, the hanging part 212 can move up and down to separate from the lock base 31, so as to unlock the T-shaped lock lever 21 and the lock base 31, and thus the battery pack 1 can be separated from the electric vehicle.

As shown in fig. 9, the T-shaped lock lever 21 includes two hanging portions 212, and the two hanging portions 212 extend in opposite directions from one end of the shaft body 211, respectively. The T-shaped lock rod 21 can be contacted with the lock seat 31 at two positions, so that the contact area between the T-shaped lock rod 21 and the lock seat 31 is increased, and the locking stability is improved. In addition, the two hanging parts 212 extend along opposite directions, so that the locking balance can be improved; moreover, when one of the hanging parts 212 rotates in place during unlocking, the other hanging part 212 also rotates in place along with the rotation, and the unlocking efficiency is improved.

Specifically, as shown in fig. 9, the two hanging portions 212 are disposed at the top of the shaft body 211, and the extending directions of the two hanging portions 212 are perpendicular to the axial direction of the shaft body 211, so that the contact area between the hanging portions 212 and the lock seat 31 is larger, and the locking is more stable. As shown in fig. 9, the shaft body 211 has a cylindrical structure, and the hanging part 212 has a rectangular cylindrical structure. As shown in fig. 2, the hanging portion 212 may have a cylindrical structure.

Specifically, the T-shaped lock lever 21 further includes a locking portion 213, the locking portion 213 is disposed at the other end of the shaft body 211, and the locking portion 213 is used for limiting the rotation of the hanging portion 212 relative to the lock base 31 when the hanging portion 212 is located at the locking position of the lock base 31. Through setting up locking portion 213, can avoid the unexpected rotation of T type locking lever 21 when the locking, promote the reliability of locking for the stability of the electricity connection between battery package 1 and the electric vehicle can be promoted.

In this embodiment, the anti-loose part 213 is a nut and is engaged with the shaft body 211 to prevent loosening. In other alternative embodiments, the anti-loose part 213 can also limit the rotation of the hanging part 212 relative to the lock seat 31 by one of the engagement modes of ratchet, pawl, bead, snap and engagement.

As shown in fig. 4, 5, 6 and 9, the locking member 200 further includes a base 22, and the t-shaped locking lever 21 is disposed in the base 22 and can be vertically lifted or rotated with respect to the base 22. The base 22 restricts the moving direction of the T-shaped lock rod 21, so that the T-shaped lock rod 21 can be lifted or rotated relative to the base 22, and the T-shaped lock rod 21 can move along the vertical direction by configuring the orientation of the chamber for accommodating the T-shaped lock rod 21 in the base 22, thereby improving the accuracy of locking and unlocking.

Specifically, the base 22 is a cylindrical structure having a through hole for the T-shaped lock lever 21 to pass through, so that the base 22 restricts the moving direction of the T-shaped lock lever 21. When the battery pack moves along the vertical direction to be installed or detached, the T-shaped lock rod 21 is lifted along the vertical direction, so that the moving process of the battery pack is combined with the locking mechanism and the vertical locking process of the locking piece, and the locking efficiency is improved. Meanwhile, the T-shaped lock rod 21 is lifted along the vertical direction, so that the T-shaped lock rod 21 can be prevented from interfering with parts in the horizontal direction when moving, and the structure is compact.

In this embodiment, the T-shaped lock lever 21 is further provided with a driving portion (not shown in the figure), and the driving portion is used for driving the hanging portion 212 to lift or rotate along the vertical direction under the action of the external driving mechanism.

As shown in fig. 7, 8 and 9, the lock base 31 has a connecting channel 32 extending in the vertical direction, and a catch 33 disposed adjacent to the connecting channel 32, the connecting channel 32 is used for moving the hanging portion 212 upward in the vertical direction to a position corresponding to the catch 33, and the hanging portion 212 is locked on the catch 33 by rotation. Specifically, the catches 33 are arranged in the horizontal direction, and the hanging portion 212 moves within the connecting passage 32, rotates to a height corresponding to the catches 33, and is hung on the catches 33, as shown in fig. 5, 7, and 8. As shown in fig. 6, when the hanging portion 212 is rotated to a position opposite to the connecting passage 32, it can be moved downward along the connecting passage 32 to disengage from the lock housing 31 for unlocking. The shape of the connecting channel 32 is matched with that of the hanging part 212, so that the hanging part 212 can move in the connecting channel 32, and the locking or unlocking is favorably and smoothly performed.

Preferably, the catch 33 is further provided with a guide surface 331, and the guide surface 331 is disposed obliquely upward or obliquely downward from the connection passage 32. The hanging part 212 can be guided to the clamping part 33 from the connecting channel 32 through the guide surface 331, and the guide surface 331 on the clamping part 33 has a certain angle with the horizontal plane, so that the clamping part 33 and the hanging part 212 form inclined self-locking after being locked, and the locking is reliable.

Further, the base 22 includes an outer base 2211 and an inner base 2212, the inner base 2212 is connected with the outer base 2211 by screw threads, and a locking groove 2213 is formed on the inner base 2212 to be matched with the T-shaped locking rod 21, so that the T-shaped locking rod 21 can be lifted and lowered in the vertical direction when rotating along the axial direction of the T-shaped locking rod. Among them, the shape of the locking groove 2213 may be determined according to the moving path of the T-shaped locking bar 21, and a spiral groove may be preferable in this embodiment.

As shown in fig. 2, the locking members 200 are disposed on two opposite sides of the battery pack 1, and when the battery pack 1 is locked with the electric vehicle, the two opposite sides of the battery pack 1 can be connected with the electric vehicle, so that the gravity of the battery pack 1 is borne by 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 electric vehicle is improved. In other embodiments, the locking member 200 may be disposed at other positions of the battery pack 1, such as at the middle position of the battery pack 1.

As shown in fig. 2, the locking member 200 includes at least two T-shaped locking levers 21, and the at least two T-shaped locking levers 21 are arranged at intervals along the same direction of the housing 2. Compared with the situation that only one T-shaped locking rod 21 is provided, more T-shaped locking rods 21 are provided for bearing the battery pack 1, and the bearing reliability and the bearing stability of the battery pack 1 are facilitated. At least two T-shaped locking rods 21 are arranged at intervals along the same direction of the box body 2, so that more T-shaped locking rods 21 on the battery pack 1 in the same direction of the box body 2 bear the gravity of the battery pack 1, the T-shaped locking rods are arranged at intervals, the stress of the battery pack 1 at different positions is balanced, and the reliability of the locking piece 200 for bearing the battery pack 1 is improved.

As shown in fig. 2, the T-shaped lock levers 21 of each lock member 200 are arranged at intervals along the direction in which the long side 111 of the case 2 extends. Compared with the extending direction of the short sides 112 of the box body 2, the extending direction of the long sides 111 of the box body 2 bears more weight of the battery pack 1, the T-shaped lock rods 21 of each locking piece 200 are arranged at intervals along the extending direction of the long sides 111 of the box body 2, more weight of the battery pack 1 is borne, the box body 2 is prevented from sagging or deforming at the middle position of the extending direction of the long sides 111 of the box body 2 due to the fact that no lock rod bears the load, and therefore reliability of the locking piece 200 for bearing the battery pack 1 is improved.

As shown in fig. 2, the arbitrary T-shaped lock levers 21 are arranged in parallel with each other. The T-shaped lock rods 21 are arranged in parallel, so that the horizontal angles of the T-shaped lock rods 21 are uniform, and when the locking mechanisms 300 and the locking pieces 200 move vertically, the pairing angles of the locking mechanisms 300 and the corresponding locking pieces 200 are uniform, and the possibility of pairing faults is reduced.

As shown in fig. 2, the T-shaped lock lever 21 is disposed in an axial direction perpendicular to the direction in which the long side 111 of the case 2 extends.

Further, as shown in fig. 2, the locking member 200 of each side is provided with four T-shaped locking levers 21 and is disposed at regular intervals along the length direction of the battery pack 1. Accordingly, the number of the T-shaped lock levers 21 can be adjusted accordingly according to the volume size or weight of the battery pack 1; for example, when the volume of the battery pack 1 is small or the short side 112 of the battery pack is also provided with the locking member 200, only one T-shaped locking lever 21, that is, only two T-shaped locking levers 21 may be provided at both ends of the locking member 200, as needed. Moreover, the interval arrangement distance of the T-shaped lock rods 21 can be correspondingly adjusted according to the number of the T-shaped lock rods 21, the gravity distribution of the battery pack 1, the size of the box body 2 and other factors; the T-shaped lock lever 21 may also be disposed along a direction parallel to the extending direction of the long side 111 of the box 2, and at this time, only the setting angle of the locking mechanism 300 needs to be adjusted correspondingly, which is not described herein again.

As shown in fig. 2, the T-shaped lock levers 21 of the two-sided lock members 200 are disposed in one-to-one correspondence, so that the lock members 200 of the two sides form a symmetrical structure. When the battery pack 1 is locked and unlocked with the electric vehicle, the locking pieces 200 on the two sides act in the same way, so that the unlocking and locking efficiency and reliability are improved.

As shown in fig. 2, the upper surface of the box body 2 is provided with a recessed structure, the locking member 200 is arranged in the recessed structure, and the connection position of the T-shaped lock lever 21 and the mounting bracket 3 is not higher than the upper surface of the box body 2. Compare in setting up T type locking lever 21 in the upper surface of box 2, when locking mechanism 300 locking on T type locking lever 21 and the electric vehicle, can make the focus of battery package 1 more be close to locking mechanism 300, promote the stability of connecting, also can increase the distance between battery package 1 and the ground, the outside battery replacement equipment of being convenient for gets into the electric vehicle below and trades the electric operation.

As shown in fig. 2, the concave structure is a step 22 provided at both sides of the case 2 in the extending direction of the long side 111 of the case 2. The steps 22 on the two sides of the box body 2 are used as the recessed structures, so that the box body 2 can be conveniently processed. 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 bracket 3 of the locking member 200 is not greater than the height of the step side wall 222, and the width of the mounting bracket 3 is not greater than the width of the step bottom 221, so that the locking member 200 is disposed in the recessed structure and the mounting bracket 3 does not protrude from the top and the side of the box body 2, thereby avoiding the mounting bracket 3 interfering with the peripheral structure.

As shown in fig. 2, each T-shaped lock lever 21 has a corresponding mounting bracket 3, and when there is a problem with the T-shaped lock lever 21, it is possible to flexibly repair or replace the corresponding mounting bracket 3. The mounting frame 3 is of a long strip structure and is connected to the bottom surface 221 of the step, so that the mounting and connecting position of the T-shaped lock rod 21 is consistent with the stress direction of the T-shaped lock rod 21, and the connection stability is improved.

In other embodiments, the mounting frame 3 may be a part of the battery pack 1, such as the step bottom 221, so that the T-shaped locking rod 21 can be directly connected to the battery pack 1, the structure can be simplified, and the space occupied by the T-shaped locking rod 21 in the vertical direction can be reduced, so that the structure is more compact. In other embodiments, the mounting frame 3 of the plurality of T-shaped lock levers 21 may be an integral structure, such as a long plate-shaped structure, and when the mounting frame is mounted and assembled, the T-shaped lock levers 21 can be connected to the mounting frame 3 first, and then connected to the battery pack 1 integrally, so that the mounting efficiency can be improved.

As shown in fig. 3, the battery pack 1 further includes an unlocking hole 23, the unlocking hole 23 is disposed corresponding to the position of the lock member 200, and the unlocking hole 23 is used for allowing an external device to pass through to unlock or lock the lock member 200. An external device such as an unlocking device may pass through the unlocking hole 23 to act on the locking member 200, thereby locking or unlocking the battery pack 1.

Specifically, at the corresponding position of each T-shaped lock bar 21, the battery pack 1 has an unlocking hole 23, and the unlocking hole 23 extends along the vertical direction and penetrates through the upper and lower surfaces of the battery pack 1, so that the external charging device can operate the T-shaped lock bar 21 to realize unlocking and locking.

In one embodiment, as shown in fig. 2, the battery pack 1 further includes a buffer member 20, and the buffer member 20 is disposed 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 (i.e. the direction of jacking the battery pack 1), after the battery pack 1 is installed on an electric vehicle, the vibration on the side surface (i.e. the horizontal direction) of the box body 2 is larger, i.e. the box body 2 is easy to collide with the electric 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.

The cushion member 20 is provided around the side surface of the case 2. The buffer members 20 are circumferentially arranged on the side surface of the box body 2, so that the buffer members 20 are arranged on the side surfaces of the vehicle in the driving direction of the vehicle and perpendicular to the driving direction of the vehicle, the collision between the electric vehicle and the battery pack 1 is buffered in a plurality of horizontal directions, and the battery pack 1 is protected more comprehensively.

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 vibration impact on different positions of the battery pack 1 is balanced, and the buffering effect is improved.

As shown in fig. 2, the buffering members 20 are disposed on the lateral surfaces of the short sides 112 of the battery pack 1, and specifically, two buffering members 20 are disposed on the lateral surfaces of the short sides 112 of the battery pack 1, and the two buffering members 20 are spaced at both ends of the short sides 112, so as to resist the impact applied to the battery pack 1 in the length direction. In another embodiment, the buffer members 20 may be provided on the side surfaces (not shown) of the long sides 111 of the battery pack 1, and the buffer members 20 may be provided on both the side surfaces of the long sides 111 of the battery pack 1, so that the battery pack 1 can resist the impact applied in the width direction. In other embodiments, the buffer members 20 may be disposed on both sides of the long side 111 and both sides of the short side 112 of the battery pack 1, and detailed descriptions thereof are omitted.

As shown in fig. 2, the buffer member 20 is provided at an upper portion of the battery pack 1 in a direction of lifting up the battery pack 1. The arrangement height of the buffer member 20 is increased as much as possible, so that the buffer member 20 is arranged between the battery pack 1 and the electric vehicle in the horizontal direction, the buffer between the battery pack 1 and the electric vehicle is realized, the volume of a related matching structure of the electric vehicle extending downwards is reduced, and the cost is reduced.

In another embodiment, the buffer member 20 is provided on the top surface of the battery pack 1, thereby effectively buffering the vibration of the battery pack 1 in the vertical direction; the impact of the battery pack 1 and the battery replacement vehicle in the vertical direction is relieved; and can be provided with buffering parts at various positions on the top surface of the box body 2 according to the requirements of vibration buffering.

In still another embodiment, the buffer members 20 are provided at both side surfaces and the top surface of the battery pack 1, thereby effectively buffering vibration of the battery pack 1 in the horizontal direction and the vertical direction.

As shown in fig. 11, 12, 13, and 14, the cushion member 20 includes an elastic member 201 and a stopper member 101, and when the battery pack 1 is connected to the electric 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 1 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 oppositely disposed and inclined from the protruding end of the protrusion 2111 toward the mounting portion 203.

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 11 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 the protruding portions 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 inside wall of the quick-change holder 8, or the free end 218 may be a plate-like structure that has some 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 engaged with the inner wall of the quick-change holder 8.

As shown in fig. 13, the engagement 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 junction of the engaging portion 219 and the protrusion 2111 is an arc surface, which facilitates the engagement of the stopper member 101 when the stopper member 101 is engaged from below the elastic member 201, 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 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 quick-change bracket 8, and the battery-end electrical connector 4 is provided on the upper surface of the case 2 in the direction of lifting up the battery pack 1. The battery pack 1 further comprises a battery end water port 5 for connecting with a vehicle end water port 5 (not shown) on the quick-change bracket 8, and the battery end water port 5 is arranged on the upper surface of the box body 2 along the direction of jacking the battery pack 1.

When the battery end electric connector 4 and the battery end water port 5 are arranged on the side surface of the box body 2, the requirement of connecting the electric connector 4 and the water port 5 on the side surface can be met; and when establishing battery end electric connector 4, battery end mouth of a river 5 along the direction of jacking battery package 1 at the upper surface of box 2, battery end electric connector 4, battery end mouth of a river 5 and the last car end electric connector or the car end mouth of a river that correspond of electric vehicle form vertical relative position relation, with battery package 1 lift process and electric connector, the vertical connection process of water receiving mouth combines together, make and to adopt straight-up and straight-down motion mode, both satisfied battery package 1 and add the unblock, also realize the electric connector simultaneously, the plug of water receiving mouth, improve battery package 1 installation effectiveness. In other embodiments, the battery end electrical connector 4 and the battery end water port 5 may be respectively disposed on different surfaces of the box body 2 according to the specific structure and position of the corresponding vehicle end electrical connector and vehicle end water port on the vehicle, so as to adapt to the needs of specific structure and position adjustment.

Example 2

The present invention also provides another embodiment, and the difference between the structures of the present embodiment and embodiment 1 is that the structure of the locking member 200 is different, specifically, the number of the hanging parts 212 of the T-shaped lock lever 21 in the present embodiment is different. As shown in fig. 10, the T-shaped lock lever 21 includes three hanging portions 212, the three hanging portions 212 respectively extend from one end of the shaft body 211 along different directions, and an included angle is formed between the three hanging portions 212. The T-shaped lock lever 21 includes three hanging portions 212, and an included angle is formed between the three hanging portions 212, so that the rotation of the hanging portions 212 is limited after the locking to prevent automatic unlocking, the locking is reliable and balanced in stress, the stability of the locking can be further improved, and the locking between the battery pack 1 and the electric vehicle is more stable and reliable.

Specifically, the shaft body 211 is a cylindrical structure, and the three hanging parts 212 are all disposed at the top of the shaft body 211 and are uniformly disposed around the circumference of the shaft body 211. In other alternative embodiments, the number of the hanging parts 212 may be other than three, and the number of the hanging parts 212 may be multiple, so that the automatic unlocking may be prevented by limiting the rotation of the hanging parts 212 after locking.

Example 3

The embodiment of the utility model provides a still provide a trade electric vehicle, as shown in fig. 1, trade the electric vehicle and include automobile body, quick change support 8, locking mechanism 300 and as above battery package 1 in embodiment 1 or 2, quick change support 8 is connected in the automobile body, and locking mechanism 300 sets up on quick change support 8, and battery package 1 can be dismantled through its T type locking lever 21 through the rotatory locking mode of T type and locking mechanism 300 and be connected on quick change support 8. The electric vehicle adopts the battery pack 1 to realize the locking and unlocking mode of straight up and straight down; reliability of connection of the lock member 200 is improved, vibration of the battery pack 1 is reduced, and the life of the lock member 200 is also improved. In addition, the rotation locking mode is simple and reliable, locking is carried out through the T-shaped rotation mode, rotation of the structure for limiting T-shaped rotation after locking is convenient, and locking is reliable, even if the battery pack 1 and the battery replacement vehicle are connected reliably.

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 vehicle has the advantages that the vehicle is fully utilized, a large space is formed in the length direction, more battery packs 1 can be arranged, and the space utilization rate and the capacity of the battery packs 1 are improved. The long side 111 of the battery pack 1 is perpendicular to the length direction of the electric 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 vehicle running direction, and the battery pack 1 is protected.

Further, the battery pack 1 is located below the quick-change holder 8.

The battery pack 1 is arranged below the quick-change bracket 8, so that the locking mechanism 300 of the quick-change bracket 8 positioned above and the locking piece 200 of the battery pack 1 positioned below form an upper and lower relative position, and the electric vehicle realizes a specific vertical locking and unlocking mode by adopting the battery pack 1, thereby realizing a mode of replacing the battery pack from the bottom of the vehicle.

Specifically, the battery replacement vehicle is an electric truck. The quick-change bracket 8 is arranged on a vehicle beam 7 of the 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 energy consumption of external battery replacement equipment during battery replacement can be reduced.

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

Claims (30)

1. A battery pack, comprising:

a box body;

the locking piece is arranged at the top of the box body and is installed at the top of the box body through an installation frame;

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

2. The battery pack of claim 1, wherein the locking member comprises a T-shaped locking bar and the locking mechanism comprises a lock housing;

or the locking piece comprises a lock seat, and the locking mechanism comprises a T-shaped lock rod;

the T-shaped lock rod and the lock seat are detachably connected to independently lock the battery pack on the battery replacement vehicle.

3. The battery pack of claim 2, wherein the T-shaped locking bar comprises a shaft body and at least one hooking portion extending outward from one end of the shaft body, and the T-shaped locking bar is rotatably locked at the locking position of the lock base by the hooking portion.

4. The battery pack according to claim 3, wherein the T-shaped locking bar includes two hooking portions extending in opposite directions from one end of the shaft body, respectively.

5. The battery pack according to claim 3, wherein the T-shaped locking bar includes three hanging portions, the three hanging portions extend from one end of the shaft body in different directions, and included angles are formed between the three hanging portions.

6. The battery pack of claim 3, wherein the T-shaped locking bar further comprises a locking portion disposed at the other end of the shaft body, the locking portion being configured to limit rotation of the hanging portion relative to the lock base when the hanging portion is located at the locking position of the lock base.

7. The battery pack of claim 6, wherein the anti-loosening portion is configured to limit rotation of the hanging portion relative to the lock seat by one of ratchet and pawl, an expanding bead, a snap fit, and a mesh.

8. The battery pack of claim 3, wherein the locking member comprises a T-shaped locking bar and the locking mechanism comprises a lock housing;

the T-shaped lock rod is arranged in the base and can lift or rotate along the vertical direction relative to the base.

9. The battery pack according to claim 3, wherein the T-shaped lock rod is further provided with a driving part, and the driving part is used for driving the hanging part to lift or rotate along the vertical direction under the action of an external driving mechanism.

10. The battery pack according to claim 3, wherein the lock holder has a connection passage extending in a vertical direction, and a catching portion disposed adjacent to the connection passage, the connection passage being configured to allow the hanging portion to move upward in the vertical direction to a position corresponding to the catching portion, the hanging portion being locked to the catching portion by rotation.

11. The battery pack according to claim 10, wherein the retaining portion is further provided with a guide surface disposed obliquely upward or obliquely downward from the connection passage.

12. The battery pack of claim 10, wherein the connecting channel is shaped to match the shape of the hanging portion.

13. The battery pack of claim 10, wherein the locking seat comprises an outer base and an inner clamping seat, the inner clamping seat is in threaded connection with the outer base, and the inner clamping seat is provided with a locking groove.

14. The battery pack according to claim 2, wherein: the locking piece comprises a T-shaped locking rod, and the locking mechanism comprises a lock base;

the locking piece comprises at least two T-shaped locking rods, and the at least two T-shaped locking rods are arranged at intervals along the same direction of the box body.

15. The battery pack of claim 14, wherein: and the T-shaped lock rods of each locking piece are arranged at intervals along the extending direction of the long edge of the box body.

16. The battery pack of claim 14, wherein: and the T-shaped lock rods are arranged in parallel, and the axial direction of the T-shaped lock rods is perpendicular to the extending direction of the long edge of the box body.

17. The battery pack according to claim 2, wherein:

the upper surface of box is equipped with sunk structure, the locking piece is established among the sunk structure, T type locking lever with the hookup location of mounting bracket is not higher than the upper surface of box.

18. The battery pack of claim 17, wherein: the recessed structure is a step arranged on two sides of the box body along the extending direction of the long edge of the box body.

19. The battery pack of claim 18, wherein:

the recessed structure comprises a step bottom surface and a step side wall, the height of the mounting frame of the locking piece is not larger than that of the step side wall, and the width of the mounting frame is not larger than that of the step bottom surface.

20. The battery pack according to claim 1, wherein: the battery pack further comprises an unlocking hole, the unlocking hole corresponds to the position of the locking piece, and the unlocking hole is used for allowing external equipment to pass through so as to unlock or lock the locking piece.

21. The battery pack according to claim 1, wherein:

the battery pack further comprises a buffer member disposed on a side surface of the battery pack.

22. The battery pack of claim 21, wherein: the buffer parts are arranged on the box body along at least one horizontal direction;

when the same surface of the box body is provided with a plurality of the buffer parts, the buffer parts are arranged at intervals.

23. The battery pack of claim 21, wherein: along the jacking direction of battery package, the bolster setting is in the upper portion of battery package.

24. The battery pack of claim 21, wherein: the buffer piece is arranged on the side surface of the box body in a surrounding mode.

25. The battery pack according to claim 1, wherein: the battery pack further comprises a battery pack end electric connector communicated with a vehicle end electric connector of the battery replacing vehicle, and the electric connector is arranged on the upper surface or the side surface of the box body along the direction of jacking the battery pack.

26. The battery pack according to claim 1, wherein: the battery pack further comprises a battery pack end water port connected with a vehicle end water port on the battery replacing vehicle, and the battery pack end water port is arranged on the upper surface or the side surface of the box body along the direction of jacking the battery pack.

27. A battery replacement vehicle is characterized in that: the battery replacement vehicle comprises a vehicle body, a quick-change support, a locking mechanism and the battery pack as claimed in any one of claims 1 to 26, wherein the quick-change support is connected to the vehicle body, the locking mechanism is arranged on the quick-change support, and the battery pack is detachably connected to the quick-change support through a T-shaped locking rod of the battery pack and the locking mechanism in a T-shaped rotation locking manner.

28. The battery replacement vehicle of claim 27, wherein: the battery replacing vehicle comprises a plurality of battery packs, the battery packs are arranged along the length direction of the battery replacing vehicle, and the long edges of the battery packs are perpendicular to the length direction of the battery replacing vehicle.

29. The battery replacement vehicle of claim 27, wherein: the battery pack is positioned below the quick-change bracket.

30. The battery replacement vehicle of any one of claims 27-29, wherein: the battery replacement vehicle is an electric truck.

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