CN116118455A

CN116118455A - Quick change assembly and change electric vehicle

Info

Publication number: CN116118455A
Application number: CN202211305940.2A
Authority: CN
Inventors: 张建平; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-10-24
Publication date: 2023-05-16
Also published as: CN219007567U; CN218558547U; CN218558546U; CN218536328U; CN116118466A; CN116118457A; CN219096474U; CN116118452A; CN116118453A; CN218577492U; CN218558542U; CN218805182U; CN116409129A; CN218577489U; CN116252607A; CN116353319A; CN219096472U; CN116001548A; CN218558548U; CN218577493U

Abstract

The invention provides a quick-change assembly and a battery-change vehicle, wherein the quick-change assembly comprises at least two battery packs which are distributed along the width direction of the battery-change vehicle, each battery pack is provided with a plurality of locking pieces at least on two opposite sides, and the locking pieces are used for being matched with a locking mechanism on the battery-change vehicle in a bead-expanding locking mode so as to lock the battery packs. By arranging a plurality of battery packs, the problem that the power change is difficult due to overlarge volume and weight of a single battery pack is avoided, the load bearing requirement on locking pieces is reduced, and the plurality of locking pieces are arranged on each battery pack, so that the connection firmness and stability of the battery packs and a power change vehicle are improved; on the other hand, when one of the battery packs is damaged, the existence of the other battery packs ensures the normal operation of the battery-changing vehicle; and a plurality of battery packs are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Description

Quick change assembly and change electric vehicle

This patent application claims priority to the chinese patent application No. 2022108378041 filed on 7.15 2022.

Technical Field

The invention relates to the technical field of electric automobiles, in particular to a quick-change assembly and a vehicle for changing electric automobiles.

Background

In recent years, new energy automobiles are rapidly developed, and electric vehicles which rely on storage batteries as driving energy have the advantages of zero emission and low noise, and along with the increasing market share and use frequency of the electric vehicles, electric commercial vehicles in the electric vehicles, such as electric heavy trucks and electric light trucks, are gradually started to appear in respective application scenes, and meanwhile, a battery replacement station for replacing a battery pack of the electric trucks is also matched and built.

Because commercial vehicles such as electric trucks and the like have larger capacity requirements on the battery pack, the size and the weight of the battery pack are generally larger, the battery pack is easy to influence the battery replacement, and the battery pack is not beneficial to being stably and safely mounted on the electric vehicle; meanwhile, as the battery pack is large in size and weight, the battery pack is correspondingly required to be fixed by a locking mechanism with stronger bearing capacity on the electric vehicle.

Disclosure of Invention

The invention aims to overcome the defect that only one battery pack can be placed in an electric truck in the prior art, and provides a quick-change assembly and a vehicle for changing.

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

the utility model provides a quick change assembly, includes two at least battery packs of arranging along trading vehicle width direction, every the battery pack is equipped with a plurality of locking pieces at least on opposite both sides edge, the locking piece be used for through rise pearl locking mode with trade locking mechanism on the electric vehicle cooperatees, in order to lock the battery pack.

In the scheme, through arranging a plurality of battery packs, the problem that the power is difficult to replace due to overlarge volume and weight of a single battery pack is avoided, the bearing requirement on the locking piece is reduced, and the plurality of locking pieces are arranged on each battery pack, so that the connection firmness and stability of the battery packs and a power replacing vehicle are improved; the plurality of battery packs are arranged along the width direction of the battery change vehicle, the structural arrangement is compact, the battery packs can be arranged by utilizing the space between the longitudinal beams of the vehicle body and the space on the two sides, and the installation space is saved; on the other hand, when one of the battery packs is damaged, the existence of the other battery packs ensures the normal operation of the battery-changing vehicle; and a plurality of battery packs are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Preferably, the locking piece comprises an expansion bead, and the locking mechanism comprises a lock seat;

or, the locking piece comprises a lock seat, and the locking mechanism comprises an expansion bead;

the expansion beads are detachably connected with the lock seats to independently lock the battery packs on the battery changing vehicle.

In this scheme, through rising pearl and lock seat realization detachable locking, install and remove convenient and fast.

Preferably, the expanding bead or the lock seat is arranged at the middle position of the battery pack, and the expanding bead or the lock seat penetrates through the battery pack.

In this scheme, rise pearl or lock seat setting in the intermediate position of battery package, be convenient for through a pearl locking structure locking battery package and the vehicle that trades that rises for load evenly distributed is on the battery package, has effectively avoided the deformation of battery package, has improved the stability and the shock resistance of battery package. The expanding bead or the lock seat penetrates through the battery pack, namely, the locking penetrates through the battery pack, so that the locking is reliable.

Preferably, the expanding beads or the lock seats are connected to the battery pack in a floating mode.

In this scheme, floating connection plays the cushioning effect, has reduced the hard collision between pearl or lock seat and the battery package that rises, prevents that the torque or the vibrations of trading the electric vehicle when receiving the turn to warp or jolt from transmitting to the battery package to the condition that pearl or lock seat wear and battery package damage rise has been reduced.

Preferably, the expansion bead or the lock seat is connected to the battery-changing vehicle in a floating manner.

In this scheme, floating connection plays the cushioning effect, has reduced the hard collision between pearl or lock seat and the vehicle that trades, prevents that the vehicle that trades from receiving the moment of torsion or vibrations transmission to the roof beam when turning to warp or jolting to the pearl or the circumstances that lock seat was worn and damaged of battery package have been reduced.

Preferably, the locking piece further comprises a driving rod, the expanding beads are arranged at the top of the driving rod, the lock seat is provided with a locking groove, and the driving rod is used for lifting or rotating in the vertical direction under the action of an external mechanism so as to drive the expanding beads to be abutted to the locking groove for locking, or to enable the expanding beads to be withdrawn out of the locking groove.

In this scheme, drive the actuating lever through drive division and rise or rotate along vertical direction to make the pearl butt that rises lock or break away from the lock seat unblock on the lock seat, be convenient for operate.

Preferably, the expanding bead comprises a driving ball and a locking ball, the driving ball is arranged at the top of the driving rod, and the driving ball is used for lifting in the vertical direction under the driving of the driving rod and driving the locking ball to enter the locking groove for locking.

In this scheme, realize the pearl locking that rises through the cooperation of drive ball and locking ball, simple structure is reliable.

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

Preferably, the housing has a first channel arranged along a vertical direction, and a second channel arranged along a circumferential direction of the first channel, and the second channel penetrates through the housing and is communicated with the first channel, and the driving rod is used for lifting or rotating in the first channel so as to push the locking ball from the second channel into the locking groove to be locked, or to withdraw the locking ball from the locking groove.

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

In this scheme, set up a plurality of pearl that rise, a plurality of pearls that rise are along the circumference evenly distributed of actuating lever, and the homoenergetic is equal when the pearl that rises and lock seat locking atress.

Preferably, the structure of the expanding bead locking mode further comprises an anti-rotation and anti-back structure, and the anti-rotation and anti-back structure is connected with the expanding bead and/or the lock seat so as to prevent relative rotation between the expanding bead and the lock seat.

In this scheme, utilize preventing changeing the retaining structure and avoid rising pearl and lock seat relative rotation, guarantee the fixed between locking piece and the locking of locking mechanism locking, improved the steady reliability that rises the pearl locking.

Preferably, the anti-rotation anti-return structure is used for limiting the rotation of the expanding bead relative to the lock seat in a matching mode of one of ratchet pawls, expanding beads, clamping and meshing.

Preferably, the locking member includes a first locking member disposed at both side edges of the battery pack extending in the width direction of the battery-changing vehicle;

and/or the locking piece comprises a second locking piece, and the second locking piece is arranged at two side edges of the battery pack extending along the length direction of the electric vehicle.

In the scheme, the first locking piece and the second locking piece are respectively matched with the locking mechanism to realize that the periphery of the battery pack is fixedly mounted on the battery-powered vehicle.

Preferably, the locking member includes a plurality of first locking members, and the first locking members are disposed at least at both ends of the battery pack in a width direction of the battery-change vehicle;

and/or, the locking piece comprises a plurality of second locking pieces, and the second locking pieces are at least arranged at two ends of the battery pack along the length direction of the battery-changing vehicle.

In this scheme, adopt above-mentioned structural style, compare the middle zone of setting up the lateral wall at the battery package, set up at both ends and be favorable to guaranteeing the stability that battery package and change car connect.

Preferably, the quick-change assembly further comprises a quick-change bracket fixedly connected to the battery-change vehicle, the quick-change bracket is provided with the locking mechanism, and a plurality of battery packs are installed on the battery-change vehicle through the quick-change bracket.

In the scheme, by adopting the structure, on one hand, the arrangement of a plurality of battery packs is more reasonable by adopting the quick-change bracket matched with the battery pack structure, so that the space utilization rate of the quick-change assembly is increased; on the other hand, set up locking mechanism on quick change support, it is more convenient when production and processing, also reduce the influence to trading electric vehicle structure simultaneously.

Preferably, the quick-change bracket comprises at least two accommodating cavities, each accommodating cavity is correspondingly provided with one battery pack, and the locking mechanism is arranged on the side wall of the accommodating cavity and matched with the locking piece on the side edge of the battery pack, or is arranged on the top wall of the accommodating cavity and matched with the locking piece on the top of the battery pack.

In this scheme, set up and hold the chamber and be used for placing the battery package, be favorable to reducing the quick change assembly and follow the height of trading electric vehicle direction of height to trade the chassis of electric vehicle and need not to reserve more space for the quick change assembly, improve space utilization, also be convenient for the dismouting of follow-up battery package simultaneously.

Preferably, the quick-change bracket comprises two first beams extending along the width direction of the battery-change vehicle and a plurality of second beams extending along the length direction of the battery-change vehicle, the two first beams are oppositely arranged, two ends of each second beam are respectively connected with the two first beams, and adjacent second beams and the first beams are enclosed to form the accommodating cavity;

preferably, the locking mechanism is provided at the bottom of the first beam and/or the second beam.

In this scheme, utilize the roof beam structure to build quick change support and form and hold the chamber, be favorable to improving the steadiness of quick change support on the one hand, on the other hand utilize the roof beam structure to have the characteristics of certain thickness, the holding tank of being convenient for subsequently seting up sets up locking mechanism.

Preferably, a containing groove which is opened downwards is formed in the bottom of the first beam and/or the bottom of the second beam, and the locking mechanism is arranged in the containing groove.

In this scheme, holding tank downwardly opening, when the battery package upwards is close to the quick change support from down gradually, the locking piece on the battery package can stretch into the holding tank from the opening of holding tank in to realize the locking with locking mechanism cooperation, set up locking mechanism in the holding tank of first roof beam and second roof beam inside, compare and set up on the lateral wall, avoid locking mechanism to occupy the space that holds the intracavity, can place bigger battery package under the same circumstances of holding the chamber size, of course if the battery capacity demand is less, also can reduce the size of quick change support and make the whole lighter little of quick change assembly, and the holding tank can protect locking mechanism, prevent to receive external damage.

Preferably, the outer peripheral surface of the battery pack is provided with a protruding portion extending in a direction away from the battery pack, at least part of the orthographic projection of the bottom surface of the quick-change bracket coincides with the protruding portion in the height direction of the battery pack, and the protruding portion is used for limiting the movement of the battery pack in the height direction of the battery pack.

In this scheme, owing to locking piece and locking mechanism cooperation back, can have the clearance between the locking part in locking piece and the locking mechanism, so will lead to the battery package to rock about the direction of height of battery package, adopts above-mentioned structural style, restricts the rocking of battery package through the cooperation of bulge and quick change support, guarantees the stability that battery package and change car are connected.

Preferably, the locking member is disposed on the protruding portion.

In this scheme, set up the locking piece on the bulge that restriction battery package removed in the direction of height, stable in structure is reliable, and need not additionally set up mounting structure such as support for the locking piece at the battery package side.

Preferably, a first elastic piece is arranged between the protruding portion and the bottom surface of the quick-change bracket, and when the locking piece is matched with the locking mechanism, the upper end surface and the lower end surface of the first elastic piece are respectively abutted to the quick-change bracket and the protruding portion.

In this scheme, adopt above-mentioned structural style, avoided the rigidity collision between bulge and the quick change support, prevented causing the damage to battery package or quick change support, guaranteed bulge and quick change support's life.

Preferably, a second elastic piece is arranged between the top surface of the battery pack and the battery replacing vehicle, and when the locking piece is matched with the locking mechanism, the upper end surface and the lower end surface of the second elastic piece are respectively abutted to the top surface of the battery pack and the battery replacing vehicle.

In this scheme, adopt above-mentioned structural style, can set up the second elastic component between the longeron or the chassis of battery package and trading the electric vehicle, some floatable volume in the direction of height of battery package for the battery package, avoid simultaneously that the battery package and trading the electric vehicle take place rigid collision and produce the damage, guaranteed battery package and trading the life of electric vehicle.

Preferably, the protruding part surrounds the outer side surface of the battery pack along the circumferential direction of the battery pack.

In this scheme, adopt above-mentioned structural style, when the installation battery package, the effect of avoiding rocking can both be played to the bulge around the battery package, is favorable to promoting the bulge on the one hand and prevents the effect that the battery package rocked, on the other hand can guarantee that the battery package can not take place the slope.

Preferably, the battery pack is provided with at least one pair of guide blocks on opposite side edges, the guide blocks having inclined guide surfaces, the inclined guide surfaces of the pair of guide blocks gradually approaching each other in a direction toward the locking mechanism.

In the scheme, by adopting the structure, in the process that the battery pack gradually approaches the quick-change bracket from bottom to top, the guide block aligns the battery pack with the position of the accommodating cavity, so that the locking piece on the battery pack and the locking mechanism on the quick-change bracket can be matched smoothly; on the other hand, as the guide block protrudes out of the side wall of the battery pack, when the battery pack is positioned in the accommodating cavity, the guide block can also reduce the shaking of the battery pack in the horizontal direction, so that the stability of the battery pack is ensured.

Preferably, in the height direction of the battery pack, the locking member is disposed at a position below a center line of the battery pack.

In the scheme, the locking piece is arranged at a position below the gravity center of the battery pack by adopting the structural form, so that the stability of the battery pack after the battery pack is connected to the quick-change bracket is further improved; on the other hand, after the battery pack is mounted on the quick-change bracket, the distance between the battery pack and the ground is larger, a larger passing space is provided for the battery replacement equipment, and the battery pack is convenient to detach and overhaul subsequently.

A battery change vehicle comprising a vehicle beam and a quick change assembly as described above, the quick change assembly being fixedly connected to the vehicle beam of the battery change vehicle to mount at least two of the battery packs to the battery change vehicle.

In the scheme, through arranging a plurality of battery packs, the problem that the power change is difficult due to overlarge volume and weight of a single battery pack is avoided, the bearing requirement on the locking piece is reduced, and the plurality of locking pieces are arranged on each battery pack, so that the connection firmness and stability between the battery pack and a power change vehicle are improved; the plurality of battery packs are arranged along the width direction of the battery change vehicle, the structural arrangement is compact, the battery packs can be better arranged by utilizing the space between the longitudinal beams of the vehicle body and the space on two sides, and the installation space is saved. When one of the battery packs is damaged, the existence of the other battery packs ensures the normal operation of the battery-changing vehicle; and a plurality of battery packs are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Preferably, the quick-change assembly comprises three battery packs, wherein one battery pack is positioned between two vehicle beams of the vehicle, and the other two battery packs are respectively positioned at two sides of the two vehicle beams.

In this scheme, adopt above-mentioned structural style, rationally utilized the space between two longerons to place the third battery package, under the condition that does not increase quick change support size, further promoted the capacity of battery package, prolonged the continuation of journey of trading the electric vehicle.

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

In this scheme, set up the structure of a plurality of battery packs and be fit for the great electric truck of the volume demand of containing the volume to the battery more, avoid the volume weight of single battery pack too big.

The invention has the positive progress effects that:

according to the invention, by arranging the plurality of battery packs, the problem that the power is difficult to replace due to overlarge volume and weight of a single battery pack is avoided, the load bearing requirement on the locking pieces is reduced, and the plurality of locking pieces are arranged on each battery pack, so that the connection firmness and stability of the battery packs and the power replacing vehicle are improved; the plurality of battery packs are arranged along the width direction of the battery change vehicle, the structural arrangement is compact, the battery packs can be arranged by utilizing the space between the longitudinal beams of the vehicle body and the space on the two sides, and the installation space is saved; on the other hand, when one of the battery packs is damaged, the existence of the other battery packs ensures the normal operation of the battery-changing vehicle; and a plurality of battery packs are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

Drawings

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

Fig. 2 is a schematic cross-sectional view of a locking assembly according to embodiment 1 of the present invention.

Fig. 3 is a bottom view of the locking assembly of embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of a quick-change assembly according to embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of a battery pack according to embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of a bracket assembly according to embodiment 2 of the present invention.

Fig. 7 is a schematic structural view of a bracket assembly according to another view of embodiment 2 of the present invention.

Fig. 8 is a schematic cross-sectional structure of a quick-change assembly according to embodiment 2 of the present invention.

Fig. 9 is a schematic structural diagram of a battery-powered vehicle according to embodiment 2 of the present invention.

Fig. 10 is a schematic structural diagram of a quick-change assembly including three battery packs according to embodiment 2 of the present invention.

Description of the reference numerals

Quick-change assembly 100

Battery pack 1

Locking member 11

First locking member 111

Projection 12

First elastic member 13

Guide block 14

Quick change stand 2

Locking mechanism 21

Accommodation chamber 22

First beam 23

Second beam 24

Accommodation groove 25

Battery change vehicle 200

Longitudinal beam 3

Lock seat 41

Connector 42

Mounting hole 421

Mounting sleeve assembly 43

First mounting sleeve 431

Second mounting sleeve 432

Locking body 44

Shell 441

Shell limiting step 4411

Limiting lug 4412

Locking ball 442

Driving rod 443

Drive ball 444

Mounting sleeve limiter 45

First limiting step 451

Second limiting step 452

Limiting groove 4521

Detailed Description

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

As shown in fig. 4 to 5 (in which fig. 5 shows a state in which the driving lever 443 does not protrude from the housing 441), the present embodiment discloses a quick-change assembly 100 including at least two battery packs 1 arranged in the width direction of the electric vehicle 200, each battery pack 1 being provided with a plurality of locking pieces 11 at least on opposite sides, the locking pieces 11 being adapted to cooperate with a locking mechanism 21 on the electric vehicle 200 by means of a bead-expanding locking manner to lock the battery packs 1.

By arranging a plurality of battery packs 1, the problem that the power change is difficult due to overlarge volume and weight of a single battery pack 1 is avoided, the load bearing requirement on the locking piece 11 is reduced, and the plurality of locking pieces 11 are arranged on each battery pack 1, so that the connection firmness and stability of the battery packs and a power change vehicle are improved; the plurality of battery packs 1 are arranged along the width direction of the battery change vehicle 200, so that the structural arrangement is compact, the battery packs 1 can be arranged by utilizing the space between the longitudinal beams of the vehicle body and the space on the two sides, and the installation space is saved; on the other hand, when one of the battery packs 1 is damaged, the presence of the other battery pack 1 ensures the normal operation of the electric vehicle 200; the plurality of battery packs 1 are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

As shown in fig. 1 to 3, the lock member 11 is mounted to the battery pack 1 or the battery change vehicle 200, and the lock mechanism 21 is correspondingly mounted to the battery change vehicle 200 or the battery pack 1.

The structure of the bead expansion locking mode can be referred to as patent grant publication number CN210941321U, of course, the specific structure of the bead expansion locking mode is not limited to the structure of patent grant publication number CN210941321U, but may also be other structures, and is not limited specifically.

Specifically, in this embodiment, the locking mechanism 21 includes a lock seat 41, and a locking groove that is matched with the locking member 11 is provided in the lock seat 41; the locking member 11 includes a connecting member 42, a mounting sleeve assembly 43 and a locking body 44, wherein the connecting member 42 is used for connecting the battery pack 1 or the battery-powered vehicle 200, the connecting member 42 is provided with a mounting hole 421, the mounting sleeve assembly 43 is sleeved on the locking body 44, the locking body 44 is mounted on the mounting hole 421 through the mounting sleeve assembly 43, and the locking body 44 can be locked or separated from the locking seat 41 of the locking mechanism 21 relatively.

The locking body 44 includes a housing 441, a driving rod 443, and an expansion bead, wherein the driving rod 443 is disposed in the housing 441 and can be lifted or rotated in a vertical direction relative to the housing 441. The expanding bead includes a driving ball 444 and a plurality of locking balls 442, the driving ball 444 is disposed at the top of the driving rod 443, the housing 441 has a first channel disposed along the vertical direction and a second channel disposed along the circumference of the first channel, and the second channel penetrates the housing 441 and is in communication with the first channel, the driving rod 443 is disposed in the first channel of the housing 441, the driving rod 443 and the driving ball 444 are used for driving the locking ball 442 to move between a first position and a second position relative to the housing 441, when the locking ball 442 is disposed in the first position, the locking ball 442 partially extends out of the housing 441 and is locked with the locking seat 41 of the locking mechanism 21, and when the locking ball 442 is disposed in the second position, the locking ball 442 is disposed in the housing 441 and is disengaged from the locking seat 41 of the locking mechanism 21.

The mounting sleeve assembly 43 includes a first mounting sleeve 431 and a second mounting sleeve 432, the outer surface of the first mounting sleeve 431 is provided with a first threaded section, and the inner surface of the second mounting sleeve 432 is provided with a second threaded section matched with the first threaded section so that the first mounting sleeve 431 is in threaded connection with the second mounting sleeve 432.

The locking piece 11 further comprises a mounting sleeve limiting piece 45 arranged on the second mounting sleeve 432, the mounting sleeve limiting piece 45 comprises a first limiting step 451 and a second limiting step 452, the housing 441 of the locking body 44 is provided with a housing limiting step 4411, the housing limiting step 4411 is arranged between the first limiting step 451 and the second limiting step 452, the distance between opposite faces of the first limiting step 451 and the second limiting step 452 is equal to the thickness of the housing limiting step 4411, further, the second limiting step 452 is provided with a limiting groove 4521, the housing limiting step 4411 is provided with a limiting lug 4412, and the limiting lug 4412 is positioned in the limiting groove 4521 so that the second limiting step 452 is connected with the housing limiting step 4411 in a matched mode.

The locking and unlocking process of the locking component 4 locked by the expanding bead in the embodiment is as follows:

when the locking member 11 and the locking mechanism 21 need to be locked, the driving rod 443 is screwed up, the driving rod 443 lifts the driving ball 444, and the driving ball 444 further drives the locking ball 442 to extend out of the housing 441, so that the locking ball 442 and the step of the lock seat 41 of the locking mechanism 21 are clamped and locked.

When the locking member 11 and the locking mechanism 21 need to be unlocked, the driving lever 443 is turned in the opposite direction to lower the driving lever 443, so that the force of the driving lever 443 on the driving ball 444 and the force of the driving ball 444 on the locking ball 442 can be sequentially released, and the locking ball 442 is disengaged from the locking mechanism 21 to be unlocked.

Preferably, in the present embodiment, the second limiting step 452 is fixed to the first limiting step 451 by a screw to form a detachable connection, so that the housing limiting step 4411 of the housing 441 is conveniently fixed between the first limiting step 451 and the second limiting step 452.

The quick-change assembly 100 further includes an anti-rotation back-off structure coupled to the locking member 11 and/or the lock housing 41 to prevent relative movement between the expansion bead and the lock housing 41. The anti-rotation retaining structure can avoid the movement of the expansion beads at the locking position relative to the lock seat 41, ensure the reliability of the locking piece 11 and the locking mechanism 21, and further ensure the reliability of the connection between the battery pack 1 and the battery change vehicle 200.

The anti-rotation and anti-return structure achieves the purpose of limiting the movement of the expansion bead relative to the lock seat 41 through one of a ratchet pawl, the expansion bead, a clamping and a meshing.

In the present embodiment, the lock member 11 is provided on the battery pack 1, and the lock mechanism 21 is provided on the battery change vehicle 200. In other embodiments, the lock member 11 is provided on the battery change vehicle 200, and the lock mechanism 21 is provided on the battery pack 1.

Specifically, the locking member 11 may be directly mounted on the battery pack 1, or the locking member 11 may be mounted on the battery pack 1 through a transfer bracket.

Preferably, in the present embodiment, the locking member 11 is disposed at the middle position of the battery pack 1, and the locking member 11 penetrates through the battery pack 1, so that the load is uniformly distributed on the battery pack 1, deformation of the battery pack 1 is effectively avoided, stability and anti-vibration performance of the battery pack 1 are greatly improved, and connection stability of the battery pack 1 and the battery change vehicle 200 is guaranteed. In other embodiments, the locking member 11 and the locking mechanism 21 may also correspond to other positions of the battery pack 1, as shown in fig. 5, where the locking member 11 is disposed on a long side wall of the battery pack 1, so that the installation is convenient, and at the same time, the structural shape of the battery pack 1 may be prevented from being affected by the arrangement of the locking member 11.

Preferably, in the present embodiment, the lock base 41 is floatingly connected to the electric vehicle 200, and the floating connection can reduce the torque or vibration of the electric vehicle 200 when the electric vehicle is subjected to steering torsion or jolt, and transmit the torque or vibration to the bracket for connecting the battery pack on the electric vehicle, so that the influence of the torque or vibration is reduced. The overall manufacturing precision of the chassis and the manufacturing precision of the battery pack 1 are reduced, and the requirement on the positioning precision of the battery pack 1 is also reduced in the process of replacing the battery pack 1, so that the production process is simplified, and the production efficiency is improved. In other embodiments, the locking member 11 is floatingly connected to the battery pack 1, and the floatingly connected structure can reduce the torque or vibration of the battery pack 1 when the vehicle is subjected to steering torsion or jolt, so that the battery pack 1 is less affected by the torque or vibration.

In other embodiments, the lock base 41 is provided on the battery pack 1, and the lock 11 is provided on the battery change vehicle 200. Preferably, the lock seat 41 is provided at a middle position of the battery pack 1, and the lock seat 41 penetrates through the battery pack 1. Preferably, the lock base 41 is floatingly connected to the battery pack 1, or the lock member 11 is floatingly connected to the battery change vehicle 200.

Preferably, the locking member 11 is further provided with a driving portion (not shown in the drawing), and the driving portion drives the driving rod 443 to lift or rotate in the vertical direction, so that the locking ball 442 abuts against the lock seat 41 to lock or is separated from the lock seat to unlock, thereby facilitating the operation.

Preferably, in the present embodiment, the driving lever 443 and the housing 441 are engaged by screw, so that the driving lever 443 can be lifted or rotated smoothly in the vertical direction to smooth the locking and unlocking processes.

Preferably, in the present embodiment, the driving ball 444 pushes the locking ball 442 to the locking position of the lock seat 41, and the driving ball 444 is preferably a solid sphere, so that the locking is simple and reliable due to balanced stress and difficult damage. In other embodiments, a groove mounting spring and a locking ball 442 may be provided in the driving lever 443, where the locking ball 442 presses the spring into a groove in the circumferential direction of the driving lever 443 in the unlocked state, and where the groove of the driving lever 443 corresponds to the locking groove of the lock base 41, and where the locking ball 442 abuts against the locking groove of the lock base 41 under the action of spring force.

Preferably, in the present embodiment, the number of the locking balls 442 is four, and the locking balls are distributed along the circumferential direction of the driving rod 443, so that the stress after locking is balanced.

As shown in fig. 5, in the present embodiment, the locking member 11 includes a first locking member 111 and a second locking member (not shown in the drawings), the first locking member 111 is disposed on both sides of the battery pack 1 extending in the width direction of the battery change vehicle 200, the second locking member is disposed on both sides of the battery pack 1 extending in the length direction of the battery change vehicle 200, and the four sides of the battery pack 1 are fixedly mounted on the battery change vehicle 200 by the cooperation of the first locking member 111 and the second locking member with the locking mechanism 21, respectively. In other embodiments, only the first locking member 111 may be provided on the battery pack 1, or only the second locking member may be provided. The specific structures of the first locking member 111 and the second locking member may be the above-mentioned bead expansion locking structure.

Specifically, the locking member 11 includes a plurality of first locking members 111 and a plurality of second locking members, and along the width direction of the battery pack 200, the first locking members 111 are disposed at least at two ends of the battery pack 1, and along the length direction of the battery pack 200, the second locking members are disposed at least at two ends of the battery pack 1, and compared with the middle area disposed at the side wall of the battery pack 1, the arrangement at two ends is favorable for ensuring the connection stability of the battery pack 1 and the battery pack 200.

As shown in fig. 6 to 7, the quick-change assembly 100 further includes a quick-change bracket 2 fixedly connected to the battery-change vehicle 200, and a locking mechanism 21 is disposed on the quick-change bracket 2, and the plurality of battery packs 1 are mounted on the battery-change vehicle 200 through the quick-change bracket 2, so that on one hand, the arrangement of the plurality of battery packs 1 is more reasonable by adopting the quick-change bracket 2 adapted to the structure of the battery packs 1, and further, the space utilization rate of the quick-change assembly 100 is increased; on the other hand, the locking mechanism 21 is provided on the quick-change bracket 2, which is more convenient in production and processing, and reduces the influence on the structure of the electric vehicle 200.

Wherein, quick change support 2 includes two at least holding chamber 22, every holds chamber 22 and correspondingly holds a battery package 1, locking mechanism 21 sets up in holding chamber 22's lateral wall, with battery package 1 side's locking piece 11 cooperation, set up to hold chamber 22 and be used for placing battery package 1, be favorable to reducing quick change assembly 100 along the height of trading electric vehicle 200 direction of height to the chassis of trading electric vehicle 200 need not to reserve more space for quick change assembly 100, improves space utilization, also is convenient for the dismouting of follow-up battery package 1 simultaneously.

Specifically, the quick-change bracket 2 includes two first beams 23 extending along the width direction of the electric vehicle 200 and a plurality of second beams 24 extending along the length direction of the electric vehicle 200, the two first beams 23 are oppositely disposed, two ends of each second beam 24 are respectively connected to the two first beams 23, and adjacent second beams 24 and the first beams 23 enclose to form the accommodating cavity 22. Utilize the beam structure to build quick change support 2 and form and hold chamber 22, be favorable to improving the steadiness of quick change support 2 on the one hand, on the other hand utilize the beam structure to have the characteristics of certain thickness, be convenient for follow-up seting up holding tank 25 and set up locking mechanism 21.

In this embodiment, the bottom of first roof beam 23 and second roof beam 24 is equipped with downwardly opening's holding tank 25, be provided with locking mechanism 21 in the holding tank 25, the holding tank 25 downwardly opening, when battery package 1 from down upwards gradually is close to quick change support 2, the locking piece 11 on the battery package 1 can stretch into in the holding tank 25 from the opening of holding tank 25, and realize the locking with locking mechanism 21 cooperation, set up locking mechanism 21 in the holding tank 25 of first roof beam 23 and the inside of second roof beam 24, compare and set up on the lateral wall, avoid locking mechanism 21 to occupy the space in holding chamber 22, can place bigger battery package 1 under the same condition of holding chamber 22 size, of course, if the battery capacity demand is less, also can reduce the size of quick change support 2 and make quick change assembly 100 whole lighter and less, and holding tank 25 can protect locking mechanism 21, prevent to receive external damage.

In other embodiments, the receiving groove 25 and the locking mechanism 21 may be provided only at the bottom of the first beam 23, or the receiving groove 25 and the locking mechanism 21 may be provided only at the bottom of the second beam 24.

Because after the locking piece 11 cooperates with the locking mechanism 21, a gap is formed between the locking piece 11 and the locking component in the locking mechanism 21, so that the battery pack 1 can shake up and down in the height direction of the battery pack 1, as shown in fig. 5 and 8, in order to ensure the connection stability of the battery pack 1 and the battery change vehicle 200, the outer peripheral surface of the battery pack 1 is provided with a protruding portion 12 extending in a direction away from the battery pack 1, at least part of the front projection of the bottom surface of the quick change bracket 2 coincides with the protruding portion 12 in the height direction of the battery pack 1, and the battery pack 1 is restricted from shaking in the height direction of the battery pack 1 by cooperation of the protruding portion 12 and the quick change bracket 2.

Wherein, locking piece 11 sets up on protruding portion 12, sets up locking piece 11 on the protruding portion 12 that restricts battery package 1 and remove in the direction of height, and the stable in structure is reliable, and does not need additionally to set up mounting structure such as support for locking piece 11 at the battery package 1 side.

Further, as shown in fig. 8, a first elastic member 13 is disposed between the protruding portion 12 and the bottom surface of the quick-change bracket 2, when the locking member 11 is matched with the locking mechanism 21, the upper and lower end surfaces of the first elastic member 13 are respectively abutted against the quick-change bracket 2 and the protruding portion 12, so that rigid collision between the protruding portion 12 and the quick-change bracket 2 is avoided, damage to the battery pack 1 or the quick-change bracket 2 is prevented, and service lives of the protruding portion 12 and the quick-change bracket 2 are ensured. The first elastic member 13 may be rubber, nylon, sponge, spring, or the like.

Specifically, the bulge 12 surrounds in the lateral surface of the battery package 1 along the circumference of the battery package 1, and when the battery package 1 is installed, the bulge 12 around the battery package 1 can both play the effect of avoiding rocking, on the one hand is favorable to promoting the bulge 12 and prevents the effect that the battery package 1 rocked, on the other hand can guarantee that the battery package 1 can not take place the slope. In other embodiments, the protruding portion 12 may be discontinuous, and the plurality of protruding portions 12 are disposed at intervals on the outer side surface of the battery pack 1.

The protruding portion 12 is further provided with a through hole (not shown in the figure) communicated with the locking mechanism 21, and the through hole is used for the unlocking mechanism to pass through, so that after the limit of the battery pack 1 in the height direction is achieved, the protruding portion 12 is prevented from obstructing the unlocking mechanism, smooth unlocking between the locking piece 11 and the locking mechanism 21 is ensured, and smooth disassembly of the battery pack 1 is ensured.

The second elastic piece (not shown in the figure) is arranged between the top surface of the battery pack 1 and the battery replacement vehicle 200, when the locking piece 11 is matched with the locking mechanism 21, the upper end surface and the lower end surface of the second elastic piece are respectively abutted against the top surface of the battery pack 1 and the battery replacement vehicle 200, and the second elastic piece can be arranged between the battery pack 1 and the longitudinal beam 3 or the chassis of the battery replacement vehicle 200, so that some floatable amount of the battery pack 1 in the height direction of the battery pack 1 is provided, and meanwhile, the battery pack 1 and the battery replacement vehicle 200 are prevented from being damaged due to rigid collision, and the service life of the battery pack 1 and the battery replacement vehicle 200 is ensured. Specifically, the second elastic member may be rubber, nylon, sponge, spring, or the like.

As shown in fig. 8, the battery pack 1 is provided with at least one pair of guide blocks 14 on two opposite sides, the guide blocks 14 are provided with inclined guide surfaces 141, the inclined guide surfaces 141 of the pair of guide blocks 14 gradually approach each other along the direction facing the locking mechanism 21, and in the process that the battery pack 1 gradually approaches the quick-change bracket 2 from bottom to top, the guide blocks 14 align the battery pack 1 with the accommodating cavity 22, so that the locking piece 11 on the battery pack 1 and the locking mechanism 21 on the quick-change bracket 2 can be matched smoothly; on the other hand, since the guide block 14 protrudes from the side wall of the battery pack 1, when the battery pack 1 is located in the accommodating cavity 22, the guide block 14 can also reduce the shake of the battery pack 1 in the horizontal direction, so as to ensure the stability of the battery pack 1.

In the present embodiment, the lock member 11 is provided at a position below the center line of the battery pack 1 in the height direction of the battery pack 1. The locking piece 11 is arranged at a position below the gravity center of the battery pack 1, so that the stability of the battery pack 1 after the battery pack 1 is connected to the quick-change bracket 2 is further improved; on the other hand, after the battery pack 1 is mounted on the quick-change bracket 2, the distance between the battery pack 1 and the ground is larger, a larger passing space is provided for the battery replacement equipment, and the battery pack 1 is convenient to detach and overhaul subsequently.

As shown in fig. 9, the present embodiment also discloses a battery-powered vehicle 200, where the battery-powered vehicle 200 includes a longitudinal beam 3 and the quick-change assembly 100 as described above, and the quick-change assembly 100 is fixedly connected to the longitudinal beam 3 of the battery-powered vehicle 200 to mount at least two battery packs 1 to the battery-powered vehicle 200. By arranging a plurality of battery packs 1, the problem that the battery replacement is difficult due to overlarge volume and weight of a single battery pack 1 is avoided, the bearing requirement on the locking piece 11 is reduced, and the plurality of locking pieces 11 are arranged on each battery pack 1, so that the connection firmness and stability between the battery packs 1 and a battery replacement vehicle are improved; the plurality of battery packs 1 are arranged along the width direction of the battery change vehicle, the structural arrangement is compact, the battery packs can be better arranged by utilizing the space between the longitudinal beams of the vehicle body and the space on the two sides, and the installation space is saved. When one of the battery packs 1 is damaged, the presence of the other battery pack 1 ensures the normal operation of the battery change vehicle 200; the plurality of battery packs 1 are arranged at the same time, so that the standardization of the battery packs is facilitated. In addition, the bead expansion locking mode is convenient and quick to assemble and disassemble, and the locking is stable and reliable.

As shown in fig. 9 to 10, specifically, the quick-change assembly 100 includes three battery packs 1, wherein one battery pack 1 is located between two stringers 3 of the battery-change vehicle 200, and the other two battery packs 1 are located at two sides of the two stringers 3, respectively, so that a space between the two stringers 3 is reasonably utilized to place a third battery pack 1, and under the condition that the size of the quick-change bracket 2 is not increased, the capacity of the battery pack 1 is further improved, and the cruising duration of the battery-change vehicle 200 is prolonged.

In this embodiment, the battery-powered vehicle 200 is an electric truck, and the structure of providing a plurality of battery packs 1 is more suitable for an electric truck with a larger battery capacity requirement, so as to avoid the overlarge volume and weight of a single battery pack 1.

In other alternative embodiments, the battery-powered vehicle 200 may be another vehicle type such as a passenger car, and the structure of providing a plurality of battery packs 1 may reduce the volume and weight of a single battery pack, so as to facilitate operations such as power-changing.

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

Claims

1. The utility model provides a quick change assembly, its characterized in that includes two at least battery packs of arranging along trading vehicle width direction, every battery pack is equipped with a plurality of locking piece at least on opposite both sides edge, the locking piece be used for through rise pearl locking mode with trade locking mechanism on the electric vehicle cooperatees, in order to lock the battery pack.

2. The quick change assembly of claim 1, wherein the locking member comprises an expanding bead and the locking mechanism comprises a lock seat; or, the locking piece comprises a lock seat, and the locking mechanism comprises an expansion bead;

3. The quick-change assembly of claim 2, wherein the bead or the lock seat is disposed at a middle position of the battery pack, and the bead or the lock seat penetrates the battery pack.

4. The quick-change assembly of claim 2, wherein the tension bead or lock base is floatingly connected to the battery pack.

5. The quick-change assembly of claim 2, wherein the tension bead or lock base is floatingly connected to the battery-powered vehicle.

6. The quick-change assembly of claim 2, wherein the locking member further comprises a driving rod, the expansion bead is arranged at the top of the driving rod, the lock seat is provided with a locking groove, and the driving rod is used for lifting or rotating in the vertical direction under the action of an external mechanism so as to drive the expansion bead to abut into the locking groove to lock or to withdraw the expansion bead from the locking groove.

7. The quick-change assembly of claim 6, wherein the expansion bead comprises a driving ball and a locking ball, wherein the driving ball is arranged at the top of the driving rod, and is used for lifting in the vertical direction under the driving of the driving rod and driving the locking ball to enter the locking groove for locking.

8. The quick-change assembly of claim 7, wherein the locking member further comprises a housing, and the drive rod is disposed within the housing and is vertically liftable or rotatable relative to the housing.

9. The quick-change assembly of claim 8, wherein the housing has a first channel disposed in a vertical direction and a second channel disposed circumferentially of the first channel, and the second channel extends through the housing and communicates with the first channel, and the drive rod is configured to lift or rotate within 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.

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

11. The quick change assembly of claim 2, wherein the structure of the expansion bead locking means further comprises an anti-rotation and anti-back structure connected to the expansion bead and/or the lock base to prevent relative rotational movement between the expansion bead and the lock base.

12. The quick-change assembly of claim 11, wherein the anti-rotation stop structure is adapted to limit rotation of the expanding bead relative to the lock base by one of ratchet pawl, expanding bead, snap fit, and engagement.

13. The quick-change assembly of claim 1, wherein the locking member comprises a first locking member disposed at both side edges of the battery pack extending in a width direction of the battery-change vehicle;

14. The quick change assembly of claim 13, wherein the locking member comprises a plurality of the first locking members, the first locking members being disposed at least at both ends of the battery pack in a width direction of the battery change vehicle;

15. The quick-change assembly of claim 1, further comprising a quick-change bracket fixedly connected to the battery-change vehicle, wherein the quick-change bracket is provided with the locking mechanism, and wherein the plurality of battery packs are mounted to the battery-change vehicle through the quick-change bracket.

16. The quick-change assembly of claim 15, wherein the quick-change bracket comprises at least two receiving cavities, each receiving cavity correspondingly receives one of the battery packs, and the locking mechanism is disposed on a side wall of the receiving cavity and cooperates with a locking member on a side edge of the battery pack.

17. The quick-change assembly of claim 16, wherein the quick-change bracket comprises two first beams extending in a width direction of the battery-change vehicle and a plurality of second beams extending in a length direction of the battery-change vehicle, the two first beams are oppositely arranged, two ends of each second beam are respectively connected to the two first beams, and adjacent second beams and the first beams are enclosed to form the accommodating cavity.

18. The quick change assembly of claim 17, wherein the bottom of the first beam and/or the second beam is provided with a downwardly opening receiving slot, the locking mechanism being disposed in the receiving slot;

at the position of the locking mechanism, at least the side wall of the first beam and/or the second beam, which is close to the accommodating cavity, is provided with an avoidance hole, and the avoidance hole penetrates through the bottom of the first beam and/or the second beam along the moving direction of the locking piece.

19. The quick-change assembly of claim 15, wherein the outer peripheral surface of the battery pack is provided with a projection extending in a direction away from the battery pack, and at least a partial orthographic projection of the bottom surface of the quick-change bracket coincides with the projection in a height direction of the battery pack, the projection being for restricting movement of the battery pack in the height direction of the battery pack.

20. The quick change assembly of claim 19 wherein the locking member is disposed on the projection.

21. The quick-change assembly of claim 19, wherein a first elastic member is disposed between the protruding portion and the bottom surface of the quick-change bracket, and when the locking member is engaged with the locking mechanism, upper and lower end surfaces of the first elastic member are respectively abutted against the quick-change bracket and the protruding portion.

22. The quick-change assembly of claim 1, wherein a second elastic member is disposed between the top surface of the battery pack and the battery change vehicle, and when the locking member is engaged with the locking mechanism, upper and lower end surfaces of the second elastic member are respectively abutted against the top surface of the battery pack and the battery change vehicle.

23. The quick change assembly of claim 19, wherein the projection surrounds an outer side of the battery pack in a circumferential direction of the battery pack.

24. The quick-change assembly of claim 1 wherein said battery pack is provided with at least one pair of guide blocks on opposite sides, said guide blocks having inclined guide surfaces, said inclined guide surfaces of a pair of said guide blocks being progressively closer to each other in a direction toward said locking mechanism.

25. The quick-change assembly of claim 1, wherein the locking member is disposed below a centerline of the battery pack in a height direction of the battery pack.

26. A battery change vehicle comprising a rail and a quick change assembly according to any one of claims 1-25 fixedly connected to the rail of the vehicle for mounting at least two of the battery packs to the vehicle.

27. The battery exchange vehicle of claim 26, wherein said quick-change assembly includes three said battery packs, one of said battery packs being located between two stringers of said battery exchange vehicle, and the other two of said battery packs being located on either side of said two stringers, respectively.

28. The battery-powered vehicle of claim 26, wherein the battery-powered vehicle is an electric truck.