CN219133830U

CN219133830U - Quick change assembly and change electric vehicle

Info

Publication number: CN219133830U
Application number: CN202222802911.9U
Authority: CN
Inventors: 张建平; 于新瑞; 赵滨; 祝明
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-10-24
Publication date: 2023-06-06
Anticipated expiration: 2032-10-24
Also published as: CN116252609A; CN116572722A; CN219007569U; CN116409132A; CN116118459A; CN116409133A; CN218558543U; CN116252608A; CN116409130A; CN116160836A; CN116118468A; CN218536327U; CN218558552U; CN116118464A; CN218558550U; CN219096473U; CN218558551U; CN218577488U; CN115991086A; CN219007570U

Abstract

The utility model provides a quick-change assembly and a battery changing vehicle, wherein the quick-change assembly comprises a plurality of battery packs, the battery packs are arranged along the length direction of the battery changing vehicle, each battery pack is independently locked at the bottom of a beam of the battery changing vehicle in a T-shaped rotary locking mode from bottom to top along the vertical direction, the plurality of battery packs arranged along the length direction of the battery changing vehicle ensure the electric quantity required by the battery changing vehicle, the quality of each battery pack is smaller, the battery packs are replaced from the lower part of the battery changing vehicle in the process of disassembling the battery packs in the battery changing vehicle, offset load is not easy to generate, the locking efficiency of the battery packs is improved, and therefore, the lifting process of single battery packs is combined with the locking process, and the locking efficiency of the single battery packs is further improved. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a T-shaped rotary locking mode, the disassembly and the assembly are not influenced, and the disassembly and the assembly flexibility are higher.

Description

Quick change assembly and change electric vehicle

The present application claims priority from chinese patent application 202210837091.9, whose application date is 2022, month 07, and 15. The present application refers to the entirety of the above-mentioned chinese patent application.

Technical Field

The utility model relates to the field of power conversion, in particular to a quick-change assembly and a power conversion vehicle.

Background

In recent years, new energy automobiles are rapidly developed, and electric vehicles which rely on a storage battery as driving energy have the advantages of zero emission and small 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.

In the prior art, a vehicle generally adopts whole-pack power conversion, the weight of a single battery pack is large, the requirement on power conversion equipment for realizing power conversion is high, the use is inflexible, and if the battery pack needs to be replaced, the whole battery pack needs to be replaced. These drawbacks are particularly pronounced when the vehicle is a heavy truck. In addition, to present joint formula locking structure, at the in-process that locks the battery package, the lock axle is usually for locking mechanism rising in place before the level advances in place, and the motion process of battery package is comparatively complicated promptly, and the requirement to the battery replacement equipment also can be higher, also can influence the efficiency of battery package locking, and then influences the battery replacement efficiency of vehicle.

Disclosure of Invention

The utility model aims to overcome at least one of the defects of low locking efficiency and low locking reliability caused by difficult battery pack replacement due to easy swinging of a whole battery pack of an electric automobile during replacement in the prior art.

The utility model solves the technical problems by the following technical scheme:

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

In this scheme, along a plurality of battery packs that change the length direction of electric vehicle arranged, make the quality of every battery pack less when guaranteeing the required electric quantity of electric vehicle that changes, tear battery pack open the in-process at the electric vehicle that changes, thereby change the below of electric vehicle and change the focus of electric vehicle and keep stable and be difficult for taking place the slope, be difficult for producing the unbalanced load, the locking efficiency of battery pack improves, and also can not cause the unbalanced load of vehicle under the circumstances that only carries partial battery pack at the electric vehicle that changes, the use is more nimble, the suitability is better. Simultaneously through all setting up locking portion at the lateral wall of battery package, the release mechanism on the battery replacement equipment of being convenient for carries out the unblock operation along the clearance between a plurality of battery packages, and the battery replacement equipment can not interfere with the battery package from the in-process that vehicle side reciprocated the vehicle bottom, realizes from bottom to top with locking mechanism connection locking along vertical direction to combine together single battery package lifting process and locking process, further improve the locking efficiency of single battery package. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a T-shaped rotary locking mode, the disassembly and the assembly are not influenced, and the disassembly and the assembly flexibility are higher. The battery package in this application adopts X to (vehicle length direction) minute case, compares in whole package and Y to minute case (vehicle width direction), and X is difficult for producing the unbalanced load at the power conversion in-process to minute case, also can not cause the unbalanced load of vehicle under the condition of only connecting partial battery package moreover, and the use mode is more nimble, and the suitability is better.

Preferably, the structure of the T-shaped rotary locking mode comprises a locking piece and a locking mechanism, the T-shaped rotary locking of the battery pack and the battery exchange vehicle is realized through the mutual matching of the locking piece and the locking mechanism, and when one of the locking piece or the locking mechanism is arranged on the battery pack, the other of the locking piece or the locking mechanism is arranged on the battery exchange vehicle.

In this scheme, quick change support installs on trading the electric vehicle, and the battery package is installed on quick change support, realizes T type rotatory locking through locking piece and locking mechanism two parts cooperation, simple structure. The battery pack and the electric vehicle replacement are locked through the cooperation of the locking piece and the locking mechanism, so that the reliable connection of the battery pack and the electric vehicle replacement is realized.

Preferably, the locking mechanism comprises a lock seat, the locking piece comprises a T-shaped lock rod, the T-shaped lock rod comprises a shaft body, and the locking mechanism further comprises at least one hanging part extending outwards from one end of the shaft body, and the locking piece is rotationally locked at the locking position of the lock seat through the hanging part.

In this aspect, the hooking portion rotates to lock the hooking portion at the locking position of the lock base even if the locking member is locked on the lock base. The relative positions of the shaft body and the hanging part of the T-shaped lock rod are arranged, so that the rotation of the hanging part is conveniently limited through the lock seat, and the lock seat of the T-shaped lock rod on the lock seat is realized.

Preferably, the locking piece comprises two hanging parts, and the two hanging parts respectively extend from one end of the shaft body in opposite directions; or alternatively, the first and second heat exchangers may be,

the locking piece comprises three hanging parts, wherein the three hanging parts extend from one end of the shaft body in different directions respectively, and included angles are formed between the three hanging parts.

In this scheme, when setting up the quantity of hitching part to be two, be convenient for prevent automatic unblock through the rotation that the restriction hitching part was hung after the locking. The two hanging parts extend in opposite directions, so that the locking is reliable after the locking and the stress is balanced. When the number of the hanging parts is three, included angles are formed between the three hanging parts, so that the automatic unlocking can be prevented by limiting the rotation of the hanging parts after the locking, and the locking is reliable and the stress is balanced.

Preferably, the locking piece further comprises a locking part, the locking part is arranged at the other end of the shaft body, and the locking part is used for limiting the rotation of the hanging part relative to the lock seat when the hanging part is positioned at the locking position of the lock seat.

In this scheme, locking portion can avoid the rotation of locking position T type locking lever relative lock seat, guarantees the reliability of locking piece and locking mechanism locking, and then guarantees the reliability of battery package and quick change support connection.

Preferably, the locking part is matched with one of ratchet, pawl, expanding bead, clamping and meshing to limit the rotation of the hanging part relative to the lock seat.

Preferably, the locking piece further comprises a base, and the T-shaped lock rod is arranged in the base and can lift or rotate along the vertical direction relative to the base; and/or the number of the groups of groups,

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

In this scheme, the motion direction of T type locking lever has been restrained to the base. When the battery pack moves along the vertical direction to be installed or dismounted, the T-shaped lock rod is lifted along the vertical direction, so that the process of moving the battery pack is conveniently combined with the vertical locking process of the locking mechanism and the locking piece, and the locking efficiency is improved. Meanwhile, the T-shaped lock rod is lifted along the vertical direction, so that interference with parts in the horizontal direction during movement of the T-shaped lock rod can be avoided, and the structure is compact.

Preferably, the lock seat has a connection channel extending along a vertical direction, and a clamping portion adjacent to the connection channel, wherein the connection channel is used for the hanging portion to move upwards along the vertical direction to a position corresponding to the clamping portion, and the hanging portion is locked on the clamping portion through rotation, so that the locking piece is locked at a locking position of the lock seat through rotation of the hanging portion.

In the scheme, the hanging part moves upwards in the connecting channel until the hanging part moves to the position corresponding to the clamping part, and then the hanging part is locked on the clamping part in a rotating way, so that the locking of the T-shaped lock rod on the lock seat is realized, and the structure is simple, reliable and convenient to realize. The hanging part moves upwards along the vertical direction, so that the process of moving the battery pack is conveniently combined with the vertical locking process of the T-shaped lock rod and the lock seat when the battery pack is detached, and the locking efficiency is improved.

Preferably, the clamping part is further provided with a guide surface, and the guide surface is obliquely upwards or downwards arranged from the connecting channel; and/or the number of the groups of groups,

the shape of the connecting channel is matched with that of the hanging part; and/or

The base comprises an outer base and an inner clamping seat, wherein the inner clamping seat is in threaded connection with the outer base, and a locking groove is formed in the inner clamping seat.

In the scheme, the guide surface on the clamping part has a certain angle with the horizontal plane, so that the clamping part and the hanging part form inclined plane self-locking after locking, and the locking is reliable; the inner clamping seat is connected to the outer base, so that the inner clamping seat can be conveniently installed on other structures through the outer base. The inner clamping seat is in threaded connection with the outer base, so that the circumferential position of the inner clamping seat can be conveniently adjusted to enable the inner clamping seat to be installed in place.

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

In this solution, at least part of the battery pack is located below the vehicle beam, and the space between the two sides of the girder may be used, or the space between the two sides of the girder and the space between the two sides of the girder may be used.

Preferably, the upper surface of the battery pack is positioned below the vehicle beam;

or, the upper part of the battery pack is positioned between the vehicle beams and/or at least one side of the battery-powered vehicle.

In the scheme, the upper surface of the battery pack is positioned below the vehicle beam, and the outer surface structure of the battery pack is flat, so that the battery pack is convenient to manufacture; the upper part of the battery pack is positioned between the vehicle beams, one side or at least one of the two sides, the space between the vehicle beams and the space at the side are fully utilized, the arrangement volume of the battery pack is improved, and the power supply capacity of the battery pack is improved, or under the same power supply capacity, the longitudinal height of the battery pack can be reduced, the vertical distance between the bottom of the battery pack and the ground is increased, and enough height space is reserved for battery pack replacement operation of the battery replacement equipment.

Preferably, the quick-change assembly further comprises a quick-change bracket arranged on a beam of the battery-change vehicle, and the battery pack is detachably connected to the quick-change bracket in a T-shaped rotary locking mode;

Along the width direction of the battery changing vehicle, the side wall of each battery pack is provided with a plurality of locking pieces; the quick-change bracket is provided with a locking mechanism, and the locking mechanism is arranged in one-to-one correspondence with the locking pieces, so that the battery pack is locked to the vehicle beam in a T-shaped rotary locking mode from bottom to top along the vertical direction.

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

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

In this scheme, the locking piece staggers each other on two sides of battery package, can make the locking piece and the locking mechanism between two adjacent battery packages have certain coincidence in the vehicle length direction that trades, can reduce the space that whole quick change assembly occupy in vehicle length direction that trades like this.

Preferably, the quick-change bracket comprises a left bracket and a right bracket which are symmetrically arranged, and the left bracket and the right bracket are respectively connected with the side walls of the corresponding sides of the vehicle beam;

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

Preferably, the quick-change bracket further comprises a connecting frame, wherein the connecting frame is positioned below the vehicle beam and connects the left bracket and the right bracket;

the locking mechanism is further arranged on the connecting frame.

In this scheme, set up link and connect left socle and right branch frame for quick change support is connected as a whole with roof beam and trading electric vehicle, has improved whole quick change support's rigidity.

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

In this scheme, through installing the locking piece on the locking piece mounting panel, avoid the locking piece to influence the regularity of battery package, can not cause the influence to the regularity of battery package's shape.

Preferably, the quick-change bracket is provided with a concave part corresponding to the locking piece mounting plate at the locking mechanism, and the concave part is formed by downward extension of the quick-change bracket and surrounds at least part of the battery pack.

In the scheme, the mounting position of the locking piece mounting plate is spaced from the top of the battery pack by a preset distance, so that the stability of the battery pack when mounted on a battery-replacing vehicle can be improved; further cooperate with the depressed part, can play the spacing effect to the battery package to a certain extent.

Preferably, a buffer structure is arranged between the concave part and the locking piece mounting plate.

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

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

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

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

In this scheme, can realize the electric connection between battery package and the vehicle that trades through battery end electric connector and car end electric connector to supply power to the vehicle that trades.

Preferably, the battery end electric connector is arranged at the top of the battery pack, the vehicle end electric connector is arranged on the lower surface of the quick-change bracket, and the battery end electric connector is in butt joint communication with the vehicle end electric connector in the vertical direction.

In this scheme, through adopting above-mentioned structure, when locking portion moved along vertical direction and was connected with locking mechanism, battery end electric connector also can be synchronous along vertical direction with car end electric connector connection, accomplish the electricity of battery package and trading electric vehicle and be connected.

Preferably, along the width direction of the battery-side electric connector is arranged at the end part of the battery pack, the quick-change bracket is provided with a position adjusting mechanism, and the position adjusting mechanism is used for driving the vehicle-side electric connector to rotate so as to enable the vehicle-side electric connector to be connected with or separated from the battery-side electric connector.

In this scheme, through position adjustment mechanism with battery package upward movement's state change into car end electric connector towards battery end electric connector pivoted motion state, need not to be equipped with additional actuating source, practice thrift the cost.

Preferably, the position adjusting mechanism comprises a rotating part provided with the vehicle-end electric connector and a driving part which moves along with the vertical movement of the battery pack, and the rotating part is rotationally connected with the quick-change bracket;

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

In this scheme, drive division can remove along with the removal of battery package, and when the battery package upwards moved under the drive of battery replacement equipment, drive division upwards moved thereupon to drive rotation portion and rotate, and then drive car end electric connector can rotate in order to be close to battery end electric connector, and connect with it, vice versa.

Preferably, the driving part comprises a rack vertically connected with the quick-change bracket in a sliding manner;

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

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

In this scheme, drive the gear through the rack and rotate, make the pivoted panel that installs car end electric connector rotate towards quick change support, make car end electric connector be close to battery end electric connector until the electricity is connected, the rack and the gear of this position adjustment mechanism can outside purchase, need not oneself die sinking manufacturing, the cost is reduced.

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

In this scheme, realize the rotation of axis of rotation and quick change support through rotating the seat and be connected, realize the multiple spot support to the axis of rotation through setting up two at least rotation seats, guarantee the stability of axis of rotation when rotating.

Preferably, a guide block is arranged on one side, away from the gear, of the rack, a guide rail extending vertically is arranged on the quick-change bracket, a guide groove extending vertically is formed in the guide rail, and the guide block is located in the guide groove and can move along the vertical direction.

In this scheme, the setting of guide way makes the vertical removal of gear more steady, through the sliding fit of guide rail and guide block for the frictional resistance that the rack received in the ascending removal in vertical direction is less, removes more smooth.

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

In this scheme, the mounting panel extends along the width direction of trading the electric vehicle for locking mechanism can set up in the position department that corresponds with locking portion, and realizes through first connecting plate that the mounting panel is connected with the roof beam.

Preferably, the left bracket further comprises a transverse plate, and the transverse plate is connected between the first connecting plate and the mounting plate and is positioned above the battery pack.

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

Preferably, the top of the rack upwards passes through the transverse plate, a limiting seat is arranged above the position of the transverse plate corresponding to the top of the rack, and the rack is elastically connected to the limiting seat through an elastic piece.

In this scheme, the guide rail carries out the slip direction on vertical direction to the rack through guide way and guide block, and the elastic component avoids the rack to drop from quick change support, and the elastic component can act on the rack, applys decurrent effort to it to let the rotor plate keep upturning state.

Preferably, the limit seat is of an inverted U-shaped plate structure, the lower end of the limit seat is connected with the upper end face of the transverse plate, and at least part of the rack and the guide rail extend into the opening of the limit seat.

In the scheme, part of racks and guide rails extend into openings of the limiting seat, so that tops of the racks and the guide rails can be protected.

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

the top of rack is equipped with the second connecting plate that the level set up, the up end of second connecting plate is through at least two interval settings the elastic component connect in the top inner wall of spacing seat.

In this scheme, through the elastic force that increases the quantity of elastic piece quantity promotion rack received, guarantee that the pivoted panel can keep upturning state.

A battery-change vehicle comprising a quick-change assembly as described above.

In this scheme, electric motor car roof beam includes the battery package assembly, and the battery package assembly includes a plurality of battery packages of arranging along the length direction of trading electric vehicle, makes the quality of every battery package less when guaranteeing to trade the required electric quantity of electric vehicle, is changing the battery package in the in-process of trading electric vehicle with battery package, and the focus of trading electric vehicle keeps stabilizing trading electric vehicle and is difficult for taking place the slope, and the locking efficiency of battery package improves. Simultaneously, the side walls of the battery packs are provided with the locking parts, so that the battery packs are connected with the locking mechanism from bottom to top along the vertical direction, the single battery pack lifting process is combined with the locking process, and the locking efficiency of the single battery pack is further improved.

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

In this scheme, the battery-powered vehicle is the electric truck, and the electric truck adopts foretell battery package, and under the condition of the same duration, the quality of single battery package declines, more easily changes.

The utility model has the positive progress effects that: in this scheme, a plurality of battery packs of arranging along the length direction of trading electric vehicle make the quality of every battery pack less when guaranteeing the required electric quantity of trading electric vehicle, tear battery pack open the in-process at trading electric vehicle, change the battery pack from trading the below of electric vehicle, thereby the focus of trading electric vehicle keeps stable and is difficult for taking place the slope, be difficult for producing the unbalanced load, the locking efficiency of battery pack improves, moreover only install the unbalanced load of partial battery pack at trading electric vehicle under the circumstances of also can not causing the vehicle, the mode of use is more nimble, the suitability is better. Simultaneously through all setting up locking portion at the lateral wall of battery package, the release mechanism on the battery replacement equipment of being convenient for carries out the unblock operation along the clearance between a plurality of battery packages, and the battery replacement equipment can not interfere with the battery package from the in-process that vehicle side reciprocated the vehicle bottom, realizes from bottom to top with locking mechanism connection locking along vertical direction to combine together single battery package lifting process and locking process, further improve the locking efficiency of single battery package. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a T-shaped rotary locking mode, the disassembly and the assembly are not influenced, and the disassembly and the assembly flexibility are higher. The battery pack in this application adopts X to (vehicle length direction) branch case, compares in whole package and Y to branch case (vehicle width direction), and X is to branch case be difficult for producing the unbalanced load at the power conversion in-process, also can not cause the unbalanced load of vehicle under the circumstances of only connecting partial battery pack moreover, and the use mode is more nimble, and the suitability is better

Drawings

Fig. 1 is a schematic diagram showing the overall structure of a battery pack assembly and a vehicle beam according to embodiment 1 of the present utility model.

Fig. 2 is a schematic diagram of a partial structure of a locking mechanism and a quick-change bracket according to embodiment 1 of the present utility model.

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

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

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

Fig. 6 is a schematic diagram showing a partial structure of a battery-side electrical connector according to embodiment 1 of the present utility model.

Fig. 7 is a schematic sectional view of the position adjusting mechanism of embodiment 1 of the present utility model.

Fig. 8 is an exploded view of the lock member and the lock mechanism of embodiment 1 of the present utility model.

Fig. 9 is a schematic structural view of a locking mechanism of embodiment 1 of the present utility model.

Fig. 10 is a schematic structural view of a locking member and a locking mechanism according to embodiment 1 of the present utility model.

Fig. 11 is a schematic view of a locking member and a lock base according to embodiment 1 of the present utility model.

Fig. 12 is a top view of the locking assembly of embodiment 1 of the present utility model.

Fig. 13 is a perspective view of the lock member and the base of embodiment 1 of the present utility model.

Fig. 14 is an exploded view showing the structural state of another locking member in accordance with embodiment 3 of the present utility model.

Fig. 15 is a schematic structural view of a battery pack and a locking member according to embodiment 2 of the present utility model.

Fig. 16 is a schematic perspective view of a quick-change bracket, a vehicle beam and a battery pack according to embodiment 2 of the present utility model.

Description of the reference numerals

A body 1; a vehicle beam 11; a quick-change bracket 2; a battery pack accommodating region 21; a locking mechanism 211; a lock base 2114; a connection channel 2115; a holding portion 2116; guide surface 2117; a position adjustment mechanism 300; a rotating portion 3001; a driving section 3002; a rack 30021; a rotating plate 30022; a rotation shaft 30023; gear 30024; a rotating base 301; a left bracket 31; a first connection plate 310; a mounting plate 311; a cross plate 312; a limit seat 313; an elastic member 314; a compression spring 3140; a second connection plate 315; a right bracket 32; a guide block 33; a guide rail 34; a guide groove 35; a battery pack 5; a locking member 51; a T-shaped lock lever 511; a shaft body 512; a hooking portion 513; a base 514; a battery pack assembly 10; a battery-side electrical connector 100; a recessed portion 7; a lock mounting plate 71; a case 72; a connecting frame 8; an outer base 8151; an inner cartridge 8152; a locking portion 9, a nut cover 813, and a rotation nut 814; guide pin 816

Detailed Description

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

Example 1

The present embodiment discloses a battery change vehicle and a quick change assembly, the battery change vehicle includes a battery pack assembly 10, as shown in fig. 1-13. The battery pack assembly 10 includes a plurality of battery packs 5 arranged along the length direction of the battery-exchanging vehicle, so that the mass of each battery pack 5 is smaller while ensuring the required electric quantity of the battery-exchanging vehicle. Each battery pack 5 is independently locked at the bottom of a beam of the electric vehicle in a T-shaped rotary locking mode from bottom to top along the vertical direction.

In the process of attaching and detaching the battery pack 5 to the battery-powered vehicle, the battery pack 5 is replaced from below the battery-powered vehicle, the center of gravity of the battery-powered vehicle is kept stable and is not easy to incline, and the locking efficiency of the battery pack 5 is improved. Meanwhile, the side walls of the battery packs 5 are provided with locking pieces 51, and the battery packs 5 are connected with the locking mechanism 211 from bottom to top along the vertical direction, so that the lifting process and the locking process of the single battery pack 5 are combined, the locking efficiency of the single battery pack 5 is further improved, and the reliability of the disassembly and assembly of the single battery pack 5 is guaranteed.

In this embodiment, as shown in fig. 1, the electric vehicle is an electric truck, and the electric truck has a large weight and consumes more electric energy per unit mileage, so that a battery pack 5 with a larger capacity should be placed in a limited space between two beams 11 of the electric truck, and the electric truck can maximally improve the cruising ability of the electric truck by adopting the battery pack 5; meanwhile, under the condition of the same cruising ability, the battery packs 5 of the electric truck adopt the mode that the plurality of battery packs 5 are distributed along the length direction of the vehicle body, the single battery pack 5 is easier to replace, if the single battery pack 5 is damaged, other battery packs 5 can continuously supply power for the electric vehicle, only the damaged battery pack 5 is required to be replaced independently, the maintenance cost of the battery packs 5 when damaged is reduced, and the reliability of the power supply of the battery packs 5 is improved. The battery pack in this embodiment adopts the X to (vehicle length direction) branch case, compares in whole package and Y to branch case (vehicle width direction), and X is to branch case be difficult for producing the unbalanced load in the power conversion in-process, also can not cause the unbalanced load of vehicle under the condition of only connecting partial battery pack in addition, and the mode of use is more nimble, and the suitability is better

Wherein at least part of the battery pack 5 is located below the vehicle beam 11, as shown in fig. 1. Specifically, the battery pack 5 may be located below the vehicle beam 11, that is, the upper surface of the battery pack 5 is located below the vehicle beam 11, and the outer surface structure of the battery pack 5 is flat, so that the battery pack 5 is convenient to manufacture.

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

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

In this embodiment, as shown in fig. 1 and 4, the battery pack assembly 10 further includes a quick-change bracket 2 disposed on a beam 11 of the battery-change vehicle, the battery packs 5 are detachably connected to the quick-change bracket 2, and along the width direction of the battery-change vehicle, a plurality of locking members 51 are disposed on the side wall of each battery pack 5; the quick-change bracket 2 is provided with a locking mechanism 211, and the locking mechanism 211 and the locking piece 51 are arranged in a one-to-one correspondence manner so as to lock the battery pack 5 on the vehicle beam 11 from bottom to top along the vertical direction. Wherein, battery package detachably connects in quick change support 2 of trading the electric vehicle, is equipped with a plurality of locking pieces 51 along trading the width direction of electric vehicle on the battery package 5, and a plurality of locking pieces 51 can increase the tie point of battery package 5 and quick change support 2 to reduce the shear stress that receives of single tie point department, make the connection between battery package 5 and the quick change support 2 more reliable and more stable, improved the connection reliability between battery package assembly 10 and the quick change support 2.

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

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

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

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

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

The structure of the T-shaped rotation locking system of the present embodiment is not limited to the one of embodiment 1, but may be any other structure.

In the present embodiment, the battery packs 5 are provided with the locking pieces 51 on the side walls along the width direction of the battery change vehicle, the locking pieces 51 are offset from each other in the width direction of the battery change vehicle, the locking pieces 51 are offset from each other on both side surfaces of the battery packs 5, the locking pieces 51 and the locking mechanism 211 between two adjacent battery packs 5 can be allowed to have a certain return in the length direction of the battery change vehicle, and the space occupied by the entire quick change bracket 2 in the length direction of the battery change vehicle can be reduced.

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

The structure of the T-type rotation lock system can be described in the related art of patent publication CN114523833 a. Of course, the specific structure of the T-shaped rotation locking method is not limited to the one disclosed in patent publication No. CN114523833a, but may be other structures, and is not limited to the specific structure. For example, in this embodiment, a preferable structure of a T-type rotation locking manner is provided, specifically, as shown in fig. 9 to 14, the locking member 51 and the locking mechanism 211 cooperate with each other to implement T-type rotation locking of the battery pack 5 and the battery exchange vehicle, where the locking member 51 is disposed on the battery pack 5, and the locking mechanism 211 is disposed on the battery exchange vehicle. Of course, in other alternative embodiments, the locking mechanism 211 may be provided on the battery pack 5, and the locking member 51 may be provided on the battery-powered vehicle.

In the embodiment, the quick-change bracket 2 is mounted on a battery-change vehicle, the battery pack 5 is mounted on the quick-change bracket 2, and the T-shaped rotary locking is realized through the matching of the locking piece 51 and the locking mechanism 211, so that the structure is simple. The battery pack 5 and the battery-changing vehicle are locked by the cooperation of the locking piece 51 and the locking mechanism 211, so that the battery pack 5 and the battery-changing vehicle are reliably connected.

Specifically, the locking member 51 includes a T-shaped locking lever 511, the T-shaped locking lever 511 includes a shaft body 512, and further includes two hooking portions 513 extending outward from one end of the shaft body 512, and the structure of the T-shaped rotation locking manner further includes a locking seat 2114, and the locking member 51 is rotationally locked at a locking position of the locking seat 2114 by the hooking portions 513. The hooking portion 513 is rotated to lock the hooking portion 513 at the locking position of the locking seat 2114 even if the locking piece 51 is locked to the locking seat 2114. The relative positions of the shaft body 512 and the hooking portion 513 of the T-shaped lock lever 511 facilitate the restriction of the rotation of the hooking portion 513 by the lock seat 2114 to realize the locking of the T-shaped lock lever 511 to the lock seat 2114 on the lock seat 2114.

Specifically, in the present embodiment, two hitching sections 513 extend in opposite directions from one end of the shaft body 512, respectively. The two hitching sections 513 extend in opposite directions so that the post-locking is reliable and the forces are balanced.

Specifically, the locking member 51 further includes a locking portion 9 provided at the other end of the shaft body 512, the locking portion 9 being configured to restrict rotation of the hooking portion 513 relative to the locking seat 2114 when the hooking portion 513 is located at the locking position of the locking seat 2114. The locking part 9 can avoid the rotation of the T-shaped locking rod 511 relative to the locking seat 2114 at the locking position, ensure the locking reliability of the locking piece 51 and the locking mechanism 211, and further ensure the connection reliability of the battery pack 5 and the quick-change bracket 2.

Specifically, the anti-loosening portion 9 in this embodiment is specifically a nut sleeve 813, the driving portion is a nut 814, the nut 814 is in threaded connection with one end of the shaft body 512 away from the hanging portion 513, the nut sleeve 813 is mounted on the nut 814, fixation of the nut 814 and the battery pack 5 is achieved, the nut 814 is guaranteed not to rotate and fall off before the battery pack 5 is mounted, the shaft body 512 is guaranteed not to rotate through the nut 814, and therefore the hanging portion 513 is guaranteed not to rotate.

Specifically, in the present embodiment, the anti-loosening portion 9 achieves the purpose of rotating the hooking portion 513 relative to the lock seat 2114 by means of a snap-fit manner, and of course, in other alternative embodiments, the anti-loosening portion 9 may also achieve the purpose of restricting the rotation of the hooking portion 513 relative to the lock seat 2114 by means of one of a ratchet, a pawl, an expanding bead, and engagement.

Specifically, the locking mechanism 211 further includes a base 514, and the t-shaped locking bar 511 is disposed in the base 514 and can be lifted or rotated in a vertical direction relative to the base 514. The base 514 constrains the direction of movement of the T-shaped locking lever 511. When the battery pack 5 moves in the vertical direction to be mounted or dismounted, the T-shaped locking bar 511 is lifted in the vertical direction, so that the process of moving the battery pack 5 is conveniently combined with the vertical locking process of the locking mechanism 211 and the locking piece 51, and the locking efficiency is improved. Meanwhile, the T-shaped lock rod 511 is lifted along the vertical direction, so that interference with parts in the horizontal direction during movement of the T-shaped lock rod 511 can be avoided, and the structure is compact.

Specifically, the T-shaped lock lever 511 is further provided with a driving part for driving the hooking part 513 to rise and fall or rotate in the vertical direction under the action of an external driving mechanism.

Specifically, the lock seat 2114 has a connection passage 2115 extending in the vertical direction, and a catching portion 2116 provided adjacent to the connection passage 2115, the connection passage 2115 being for the hanging portion 513 to move upward in the vertical direction to a position corresponding to the catching portion 2116, the hanging portion 513 being locked on the catching portion 2116 by rotation.

In this embodiment, the hanging portion 513 moves upward in the connection channel 2115 until the hanging portion 513 moves to a position corresponding to the holding portion 2116, and then the hanging portion 513 is rotationally locked to the holding portion 2116, so as to lock the T-shaped lock lever 511 on the lock seat 2114. The hanging portion 513 moves upward in the vertical direction, so that the process of moving the battery pack 5 when the battery pack 5 is detached can be combined with the vertical locking process of the T-shaped locking rod 511 and the locking seat 2114, and the locking efficiency can be improved.

Specifically, the holding portion 2116 is also provided with a guide surface 2117, and the guide surface 2117 is provided obliquely upward or obliquely downward from the connection passage 2115. The guide surface 2117 on the clamping portion 2116 is angled from the horizontal to facilitate the beveled self-locking of the clamping portion 2116 and the hooking portion 513 after locking, resulting in a secure locking.

In this embodiment, in order to facilitate movement of the hooking portion 513 within the connection channel 2115, the locking efficiency is improved, and the connection channel 2115 is shaped to match the hooking portion 513.

Specifically, the base 514 includes an outer base 8151 and an inner holder 8152, the inner holder 8152 and the outer base 8151 are screwed, and a locking groove is formed on the inner holder 8152. The inner cartridge 8152 is coupled to the outer base 8151 for ease of installation to other structures through the outer base 8151. The inner holder 8152 is threadedly coupled to the outer base 8151, so that the circumferential position of the inner holder 8152 is conveniently adjusted to secure the inner holder 8152 in place.

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

During the locking process, the nut housing is unlocked and the nut is rotated, and the T-shaped locking bar 511 moves downward when the nut is rotated by screw-fitting. When the T-shaped lock rod 511 moves downward, the guide pin 816816 moves downward and drives the T-shaped lock rod 511 to rotate by a certain angle under the cooperation of the spiral groove until the hanging portion 513 of the T-shaped lock rod 511 cooperates with the clamping portion 2116 of the lock seat 2114, and the T-shaped lock rod 511 compresses the clamping portion 2116, so that the connection between the battery pack 5 and the battery-powered vehicle is realized. Finally, the nut is locked through the nut sleeve, so that the nut can not be rotated and loosened.

In the unlocking process, the nut is rotated after the nut housing is unlocked, and the T-shaped lock lever 511 moves upward when the nut is rotated by screw-fitting. When the T-shaped lock rod 511 moves upwards, the guide pin 816816 moves upwards and drives the T-shaped lock rod 511 to rotate by a certain angle under the cooperation of the spiral grooves until the hanging part 513 of the T-shaped lock rod 511 is staggered with the clamping part 2116 of the lock seat 2114, so that the battery pack 5 is detached from the battery-replacing vehicle, and the battery pack 5 is quickly detached.

In the embodiment, a buffer member is further arranged between the quick-change bracket 2 and the battery pack 5; the buffer is located between the side wall of the battery pack 5 and the quick-change holder 2, and is connected to at least one of the quick-change holder 2 and the battery pack 5. Specifically, the buffer member may be disposed along the length direction and/or the width direction of the replacement vehicle, so as to slow down the shake of the battery pack 5 during the running of the replacement vehicle, and avoid the impact on the quick-change bracket 2.

In this embodiment, as shown in fig. 16, the battery pack assembly 10 further includes a battery end electrical connector 100 and a vehicle end connector 27, the battery end electrical connector 100 is disposed on the battery pack 5, and the vehicle end connector 27 is disposed on the quick-change bracket 2; when the battery pack 5 is mounted on the quick-change bracket 2, the battery end electric connector 100 is electrically connected with the vehicle end connector 27, wherein the battery end electric connector 100 and the vehicle end connector 27 can be used for realizing electric connection between the battery pack 5 and the vehicle replacement so as to realize power supply of the battery pack 5 to the vehicle replacement.

In other preferred embodiments, the battery-side electrical connector 100 is disposed at the top of the battery pack 5, the car-side connector 27 is disposed on the lower surface of the quick-change bracket 2, and the battery-side electrical connector 100 is in butt-joint communication with the car-side electrical connector in the vertical direction. By adopting the above structure, when the locking member 51 moves along the vertical direction and is connected with the locking mechanism 211, the battery-side electric connector 100 can be synchronously connected with the vehicle-side electric connector along the vertical direction, so that the electric connection between the battery pack 5 and the vehicle replacement is completed, the lifting and the electric connection of the battery pack 5 are completed in one process, and the installation efficiency of the battery pack 5 is improved.

In this embodiment, along the width direction of the battery-side electric connector 100 is disposed at the end of the battery pack 5, and the quick-change bracket 2 is provided with a position adjusting mechanism 300, where the position adjusting mechanism 300 is used to drive the vehicle-side electric connector to rotate, so that the vehicle-side electric connector is connected to or separated from the battery-side electric connector 100. Wherein, the state that the battery pack 5 moves upwards is converted into the moving state that the vehicle-end electric connector rotates towards the battery-end electric connector 100 through the position adjusting mechanism 300, and in addition, the electric connection of the battery pack 5 and the battery-changing vehicle does not need to be provided with an additional driving source, so that the running cost required by the electric connection of the battery pack 5 and the battery-changing vehicle is saved.

In the present embodiment, as shown in fig. 3, the position adjustment mechanism 300 includes a rotating portion 3001 to which the vehicle-end electrical connector is mounted and a driving portion 3002 that moves as the battery pack 5 moves vertically, the rotating portion 3001 being rotatably connected to the quick-change bracket 2; the rotating portion 3001 is connected to the driving portion 3002, and the battery pack 5 moves upward to drive the driving portion 3002 to move upward, so that the rotating portion 3001 is driven to rotate toward the direction in which the electrical connector of the battery pack 5 is located, so that the vehicle-end electrical connector rotates along the direction approaching the battery-end electrical connector 100 and opposite to the battery-end electrical connector 100. Wherein, the driving part 3002 can move along with the movement of the battery pack 5, when the battery pack 5 moves upwards under the drive of the battery exchange device, the driving part 3002 moves along with the upward movement of the battery pack 5, the driving part 3002 rotates to drive the rotating part 3001 to rotate, and the vehicle-end electric connector can rotate to be close to the battery-end electric connector 100 and is connected with the battery-end electric connector 100; on the contrary, when the battery pack 5 is assembled and disassembled, the battery pack 5 moves downward to drive the driving portion 3002 to move downward, and the driving portion 3002 moves downward to drive the rotating portion 3001 to rotate in a direction away from the battery-side electrical connector 100, so that the battery-side electrical connector 100 is disconnected from the vehicle-side electrical connector.

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

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

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

In this embodiment, a guide block 33 is disposed on one side of the rack 30021 away from the gear 30024, a vertically extending guide rail 34 is disposed on the quick-change bracket 2, a vertically extending guide groove 35 is disposed on the guide rail 34, and the guide block 33 is disposed in the guide groove 35 and can move along the vertical direction. Wherein, the arrangement of the guide groove 35 makes the vertical movement of the gear smoother; by the sliding fit of the guide rail 34 and the guide block 33, the friction resistance applied to the rack 30021 in the moving process in the vertical direction is smaller, and the movement is smoother, so that the distance of upward movement of the battery pack 5 is equal to the distance of upward movement of the rack 30021.

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

In this embodiment, the left bracket 31 further includes a cross plate 312, and the cross plate 312 is connected between the first connection plate 310 and the mounting plate 311 and is located above the battery pack 5. Wherein, setting up diaphragm 312 can promote the structural strength of quick change support 2, prevents that left socle 31 from taking place to warp.

In this embodiment, as shown in fig. 4, the top of the rack 30021 passes through the transverse plate 312, a limiting seat 313 is disposed above the transverse plate 312 corresponding to the top of the rack 30021, and the rack 30021 is elastically connected to the limiting seat 313 through an elastic member 314. The guide rail 34 guides the rack 30021 in a sliding manner in a vertical direction through the guide groove 35 and the guide block 33, the elastic piece 314 prevents the rack 30021 from falling from the quick-change bracket 2, and the elastic piece 314 can act on the rack 30021 to apply a downward force to the rack 30021, so that the rotating plate 30022 is kept in an upturned state.

In this embodiment, the limiting base 313 has an inverted U-shaped plate structure, the lower end of the limiting base 313 is connected to the upper end surface of the transverse plate 312, and part of the rack 30021 and the guide rail 34 extend into the opening of the limiting base 313. Wherein, the openings of the partial racks 30021 and the guide rails 34 extending into the limiting seat 313 can protect the tops of the racks 30021 and the guide rails 34.

In this embodiment, the elastic member 314 is a compression spring 3140, and the rack 30021 is connected to the top inner wall of the limiting seat 313 through the compression spring 3140. Wherein, the elastic member 314 is a compression spring 3140 with low cost, the rack 30021 is connected to the top inner wall of the limiting seat 313 through the compression spring 3140, so that the rack 30021 can provide a certain elastic force in the process of keeping away from the inner wall of the top of the limiting seat 313, the elastic member 314 can apply a downward elastic restoring force, so that the rack 30021 moves downwards, and further drives the vehicle-end electrical connector to move towards the direction away from the battery-end electrical connector 100, so that the two electrical connectors are separated, and the battery pack 5 is convenient to detach.

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

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

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

Example 2

The present embodiment provides a battery-powered vehicle and a quick-change assembly, as shown in fig. 15-16, and the present embodiment is basically the same as embodiment 1, except that in this embodiment, the quick-change bracket 2 further includes a connecting frame 8, where the connecting frame 8 is located below the vehicle beam 11 and connects the left bracket and the right bracket, so that the quick-change bracket is connected with the vehicle beam and the battery-powered vehicle as a whole, and rigidity of the integral quick-change bracket is improved.

The connecting frame 8 can be integrally formed with the left bracket and the right bracket, and can be integrally connected by bolts, welding and the like.

Specifically, the battery pack 5 is connected with a lock mounting plate 71 on both side walls in the width direction of the battery-change vehicle, and the lock 51 is provided on the side wall of the battery pack 5 by being mounted on the lock mounting plate 71, and the lock mounting plate 71 is spaced apart from the top surface of the battery pack 5 by a certain distance. By mounting the locking member 51 on the locking member mounting plate 71, the locking member 51 is prevented from affecting the regularity of the battery pack 5, and the shape and the regularity of the battery pack 5 are not affected.

The quick-change bracket 2 is provided with the depressed part 7 corresponding to the locking piece mounting plate 71 at the locking mechanism 211, the depressed part 7 is formed by downward extension of the quick-change bracket 2 and at least surrounds part of the battery pack 5, the depressed part 7 is arranged between the locking piece mounting plates 71 and is formed by a buffer structure, the mounting positions of the locking piece mounting plates 71 are spaced at a certain distance from the tops of the battery packs 5, the stability of the battery packs 5 when mounted on a battery-change vehicle can be improved, the battery packs 5 are further matched with the depressed part 7, and the limiting effect on the movement of the battery packs 5 can be generated to a certain extent.

Example 3

The difference between the battery-powered vehicle and the quick-change assembly provided in this embodiment and the respective structures in embodiment 1 is that the structure of the T-shaped rotation locking manner is different, specifically, the number of the hitching portions 513 of the locking member 51 in this embodiment is different, and in accordance therewith, the number of the holding portions 2116 of the locking seat 2114 on the locking mechanism 211 is also provided corresponding to the hitching portions 513. The number of the hanging parts 513 is three, and included angles are formed between the three hanging parts 513, so that the hanging parts 513 can be conveniently prevented from being automatically unlocked by limiting the rotation of the hanging parts 513 after locking, so that the locking is reliable and the stress is balanced, the locking stability is further improved, more preferably, the three hanging parts 513 are uniformly distributed along the circumferential direction of the shaft body 512, and of course, in other alternative embodiments, the hanging parts 513 can be in other numbers greater than three. The number of the hooking portions 513 is plural, so that automatic unlocking is prevented by restricting the rotation of the hooking portions 513 after locking. And compared with two hitching parts 513, the T-shaped locking rod 511 with three hitching parts 513 has smaller rotation angle in the unlocking and locking processes, thereby improving the power conversion efficiency. As shown in fig. 15, the locking member 51 includes three hooking portions 513, the three hooking portions 513 respectively extend from one end of the shaft body 512 in different directions, and an included angle is formed between the three hooking portions 513. The locking member 51 includes three hitching sections 513, which can further improve the stability of locking, so that the locking between the battery pack 5 and the replacement vehicle is more stable and reliable.

Specifically, the shaft body 512 has a cylindrical structure, and three hitching sections 513 are disposed on top of the shaft body 512 and uniformly disposed around the circumference of the shaft body 512.

While specific embodiments of the utility model 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 utility model 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 utility model, but such changes and modifications fall within the scope of the utility model.

Claims

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

2. The quick-change assembly of claim 1, wherein the T-turn locking means comprises a locking member and a locking mechanism, wherein the T-turn locking of the battery pack and the battery-powered vehicle is achieved by the cooperation of the locking member and the locking mechanism, and wherein one of the locking member or the locking mechanism is disposed on the battery pack while the other of the locking member or the locking mechanism is disposed on the battery-powered vehicle.

3. The quick change assembly of claim 2, wherein the locking mechanism comprises a lock base and the locking member comprises a T-shaped lock bar comprising a shaft body and further comprising at least one hooking portion extending outwardly from one end of the shaft body, the locking member being rotationally locked in a locked position of the lock base by the hooking portion.

4. A quick-change assembly according to claim 3, wherein the locking member comprises two said hitching sections extending in opposite directions from one end of the shaft body, respectively; or alternatively, the first and second heat exchangers may be,

the locking piece comprises three hanging parts, the three hanging parts extend from one end of the shaft body in different directions respectively, and an included angle is formed between the three hanging parts.

5. A quick-change assembly according to claim 3, wherein the locking member further comprises a locking portion provided at the other end of the shaft body, the locking portion being adapted to restrict rotation of the hooking portion relative to the lock base when the hooking portion is located at the locking position of the lock base.

6. The quick-change assembly of claim 5, wherein the locking portion is adapted to limit rotation of the hooking portion relative to the lock base by one of a ratchet, a pawl, a bead, a snap fit, and a mesh.

7. The quick-change assembly of claim 3, wherein the locking member further comprises a base, and the T-shaped locking rod is disposed in the base and can be lifted or rotated in a vertical direction relative to the base; and/or the number of the groups of groups,

8. The quick-change assembly of claim 7, wherein the lock base has a connecting channel extending in a vertical direction, and a clamping portion disposed adjacent to the connecting channel, the connecting channel being used for allowing the hooking portion to move upward in the vertical direction to a position corresponding to the clamping portion, and the hooking portion is rotationally locked on the clamping portion, so that the locking member is rotationally locked on the locking position of the lock base by the hooking portion.

9. The quick-change assembly of claim 8, wherein the retaining portion is further provided with a guide surface disposed obliquely upward or downward from the connecting channel; and/or the number of the groups of groups,

10. The quick-change assembly of any one of claims 1-9, wherein at least a portion of the battery pack is located below the vehicle beam.

11. The quick change assembly of claim 10, wherein an upper surface of the battery pack is positioned below the vehicle beam;

12. The quick-change assembly according to any one of claims 1-9, further comprising a quick-change bracket provided on a vehicle beam of a battery-change vehicle, the battery pack being detachably connected to the quick-change bracket by means of a T-shaped rotational lock;

13. The quick change assembly of claim 12 wherein the battery packs have locking members on both side walls along the width of the battery change vehicle that are offset from each other in the width of the battery change vehicle.

14. The quick-change assembly of claim 12, wherein the quick-change brackets comprise symmetrically arranged left and right brackets, the left and right brackets being respectively connected to side walls of corresponding sides of the vehicle beam;

15. The quick change assembly of claim 14, wherein the quick change bracket further comprises a connecting bracket positioned below the vehicle beam and connecting the left bracket and the right bracket;

the locking mechanism is further arranged on the connecting frame.

16. The quick-change assembly of claim 12, wherein the battery pack is connected to a locking member mounting plate at both side walls in a width direction of the battery-change vehicle, the locking member being disposed at the side wall of the battery pack by being mounted to the locking member mounting plate, the locking member mounting plate being spaced apart from a top surface of the battery pack by a predetermined distance.

17. The quick-change assembly of claim 16, wherein the quick-change bracket is provided with a recess at the locking mechanism corresponding to the locking member mounting plate, the recess being formed by the quick-change bracket extending downwardly and surrounding at least a portion of the battery pack.

18. The quick change assembly of claim 17, wherein a buffer structure is provided between the recess and the locking member mounting plate.

19. The quick-change assembly of claim 12, wherein a buffer is further provided between the quick-change bracket and the battery pack; the buffer piece is positioned between the side wall of the battery pack and the quick-change bracket and is connected with at least one of the battery pack and the quick-change bracket.

20. The quick-change assembly of claim 14, further comprising a battery-side electrical connector disposed on the battery pack and a car-side electrical connector disposed on the quick-change bracket;

21. The quick change assembly of claim 20, wherein the battery end electrical connector is disposed at a top portion of the battery pack, the car end electrical connector is disposed at a lower surface of the quick change bracket, and the battery end electrical connector is in mating communication with the car end electrical connector in a vertical direction.

22. The quick-change assembly of claim 20, wherein the battery-side electrical connector is disposed at an end of the battery pack along a width direction of the battery-change vehicle, and the quick-change bracket is provided with a position adjustment mechanism for rotating the vehicle-side electrical connector to connect or disconnect the vehicle-side electrical connector to or from the battery-side electrical connector.

23. The quick change assembly of claim 22, wherein the position adjustment mechanism comprises a rotating portion to which the vehicle-end electrical connector is mounted and a driving portion that moves as the battery pack moves vertically, the rotating portion being rotatably connected to the quick change bracket;

24. The quick change assembly of claim 23, wherein the drive portion comprises a rack vertically slidably coupled to the quick change bracket;

25. The quick-change assembly of claim 24, wherein the end of the quick-change bracket adjacent to the vehicle-end electrical connector is provided with at least two rotating seats, and the rotating shaft is disposed in the rotating seats in a penetrating manner and can rotate along the axis of the rotating seat.

26. The quick-change assembly of claim 24, wherein a guide block is disposed on a side of the rack away from the gear, a vertically extending guide rail is disposed on the quick-change bracket, a vertically extending guide slot is disposed on the guide rail, and the guide block is disposed in the guide slot and is movable along the vertical direction.

27. The quick change assembly of claim 26 wherein the left bracket includes a first connection plate connected to the vehicle beam and a vertically disposed mounting plate for mounting the locking mechanism, one end of the mounting plate being connected to the first connection plate and extending in a width direction of the battery powered vehicle such that the locking mechanism is disposed opposite the locking member.

28. The quick change assembly of claim 27, wherein the left bracket further comprises a cross plate coupled between the first coupling plate and the mounting plate and positioned above the battery pack.

29. The quick change assembly of claim 28, wherein the top of the rack extends upwardly through the cross plate, a stop seat is disposed above the top of the cross plate corresponding to the rack, and the rack is elastically connected to the stop seat by an elastic member.

30. The quick change assembly of claim 29, wherein the stop seat has an inverted U-shaped plate structure, the lower end of the stop seat is connected to the upper end surface of the cross plate, and at least a portion of the rack and the guide rail extend into the opening of the stop seat.

31. The quick change assembly of claim 30, wherein the elastic member is a compression spring, and the rack is connected to the top inner wall of the limit seat through the compression spring; and/or the number of the groups of groups,

32. A battery change vehicle comprising a quick change assembly according to any one of claims 1-31.

33. The battery-powered vehicle of claim 32, wherein the battery-powered vehicle is an electric truck.