CN116118466A

CN116118466A - Vehicle for replacing electric vehicle

Info

Publication number: CN116118466A
Application number: CN202211306031.0A
Authority: CN
Inventors: 张建平; 于新瑞; 黎明
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: 2023-05-16
Also published as: CN116118469A; CN218577489U; CN116118452A; CN218577493U; CN219096474U; CN116118461A; CN116001548A; CN218805182U; CN116353319A; CN116409129A; CN218558546U; CN218536328U; CN219007567U; CN116118455A; CN116353320A; CN219096472U; CN116252607A; CN218558547U; CN218577492U; CN218558548U

Abstract

The invention discloses a battery-changing vehicle, which comprises: a vehicle body; the quick-change bracket is connected to the beam of the vehicle body, a plurality of battery pack accommodating areas are formed along the width direction of the vehicle body by the quick-change bracket, and a locking mechanism is arranged in each battery pack accommodating area; the battery packs are provided with locking pieces, the locking pieces are detachably connected with the locking mechanisms in a bead expansion locking mode, the battery packs are respectively and independently connected with the corresponding battery pack accommodating areas in a bead expansion locking mode through the locking pieces, and the battery packs are arranged in parallel along the width direction of the vehicle body. The battery packs are respectively installed in the containing areas of the battery packs, the battery packs are fixed on the body of the battery change vehicle through the quick change bracket, the battery packs are independently locked at the bottom of the vehicle body of the battery change vehicle in a bead expansion locking mode, the disassembly and the assembly are not affected, and the disassembly and the assembly flexibility are higher.

Description

Vehicle for replacing electric vehicle

The present application claims priority from chinese patent application 2022108378041, 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 invention relates to the field of automobile power conversion, in particular to a power conversion vehicle.

Background

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

The existing battery pack has large weight, has high requirements on the battery replacement equipment during installation and replacement, is easy to shake during the battery replacement process, has poor reliability and is inconvenient to transport; in addition, the battery pack is single with the locking structure of the battery replacement vehicle, and the disassembly and assembly difficulty is high, so that the installation efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a battery-replacing vehicle.

The invention solves the technical problems by the following technical scheme: a battery-change vehicle, the battery-change vehicle comprising:

a vehicle body;

the quick-change bracket is connected to the beam of the vehicle body, a plurality of battery pack accommodating areas are formed along the width direction of the vehicle body by the quick-change bracket, and a locking mechanism is arranged in each battery pack accommodating area;

The battery packs are provided with locking pieces, the locking pieces are detachably connected with the locking mechanisms in a bead expansion locking mode, the battery packs are respectively and independently connected with the corresponding battery pack accommodating areas in a bead expansion locking mode through the locking pieces, and the battery packs are arranged in parallel along the width direction of the vehicle body.

In the scheme, the plurality of battery packs are respectively installed through the plurality of battery containing areas by adopting the structural form, so that the plurality of battery packs are fixed on the body of the battery exchange vehicle through the quick-change bracket; in the second aspect, after the battery packs are placed in the boxes, different numbers of battery packs can be installed in a matching mode according to the electricity consumption required by the battery exchange vehicle, so that the compatibility is high; in the third aspect, compared with the case-dividing arrangement of the whole battery packs, the case-dividing arrangement of the battery packs does not need to adopt large-scale transportation equipment to transport the case-divided battery packs, so that the material cost of equipment is reduced; each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a bead expansion locking mode, the disassembly and the assembly are not influenced, and the disassembly and the assembly flexibility are higher.

Preferably, the structure of the expanding bead locking mode comprises the locking piece and the locking mechanism; 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 quick-change bracket.

In this scheme, through the cooperation between pearl and the lock seat that rises, realize the pearl locking that rises between battery package and the change electric vehicle, be favorable to improving the reliability and the durability of locking.

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

In this scheme, rise one of them setting of pearl and lock seat on the battery package, another setting is on trading electric vehicle to realize battery package and trading electric vehicle's connection through the cooperation of rising pearl and lock seat.

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, adopt above-mentioned structural style, be favorable to guaranteeing the stability that battery package and quick change support are connected.

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

In this scheme, the floating connection can reduce the torque or the vibrations of trading the electric vehicle when receiving the turning distortion or jolting and transmit to the battery package, and then makes the influence that the battery package received torque or vibrations reduce.

Preferably, the expansion bead or the lock seat is connected to the quick-change bracket in a floating manner.

In this scheme, the floating connection can reduce the torque or the vibrations transmission to the quick change support of trading electric vehicle when receiving the turning distortion or jolting, and then makes the influence that the quick change support received torque or vibrations reduce.

Preferably, the expanding bead comprises a connecting column and a plurality of locking balls, and the locking balls can move on the connecting column, so that the locking balls are exposed out of the outer surface of the connecting column or contract towards the inner part of the connecting column, and the locking balls are propped against and locked on the lock seat or the expanding bead and the lock seat are unlocked mutually.

In this scheme, realize locking ball and lock seat's cooperation through the removal of locking ball for the spliced pole, and then realize rising pearl and lock and unblock of lock seat.

Preferably, the expanding bead further comprises a driving assembly, wherein the driving assembly is arranged in the connecting column and connected with the locking ball, the lock seat is provided with a locking cavity for accommodating the connecting column and the locking ball, and the driving assembly is used for driving the locking ball to move between a locking position and an unlocking position;

When the locking ball is positioned at the locking position, the locking ball is exposed out of the outer surface of the connecting column and is clamped with the inner side wall of the locking cavity;

when the locking ball is located at the unlocking position, the locking ball contracts towards the inside of the connecting column and resets to the inside of the connecting column.

In the scheme, when the battery pack is required to be locked on the battery-changing vehicle, the connecting column and the locking ball can extend into the locking cavity, and the locking ball is driven by the driving assembly to extend out of the connecting column and be clamped with the inner side wall of the locking cavity, so that locking is realized; when the battery pack is required to be unlocked from the battery-powered vehicle, the locking ball is driven by the driving assembly to reset to the inside of the driving assembly, so that unlocking is realized. The locking and unlocking operations are simple and convenient, and the locking and unlocking efficiency of the battery pack is improved.

Preferably, the driving assembly comprises a driving bolt and a driving ball, the driving ball is arranged at one end of the driving bolt facing the locking ball, the driving ball is positioned in the connecting column and is in butt joint with the locking ball, an internal thread is arranged in the connecting column, the internal thread is matched with the driving bolt, the connecting column is provided with a locking hole, and the driving bolt is used for controlling the driving ball to apply acting force which enables the locking ball to at least partially extend out of the locking hole through adjusting the spiral length of the connecting column.

In the scheme, when the locking operation of the battery pack is performed, the driving bolt is rotated to enable the driving bolt to move towards the direction close to the driving ball relative to the connecting column, and the driving ball is continuously lifted, so that the driving ball can squeeze the locking ball, and the locking ball extends out of the connecting column and is clamped with the inner side wall of the locking cavity to realize locking; when the unlocking operation of the battery pack is carried out, the driving bolt is rotated along the opposite direction to enable the driving bolt to move away from the driving ball relative to the connecting column, the driving ball does not squeeze the locking ball after losing the external force action of the driving bolt, and the locking ball is reset into the connecting column to realize unlocking. Through the setting of drive bolt and drive ball for the locking and unlocking of pearl that rises are more convenient.

Preferably, the locking mechanism further comprises an anti-rotation and anti-return structure, and the anti-rotation and anti-return structure is connected with the expansion bead and/or the lock seat so as to prevent relative rotation movement between the expansion bead and the lock seat.

In this scheme, the pearl produces relative rotation when having avoided rising to rise to the pearl and lock seat cooperation, and then has guaranteed battery package and quick change support connection's stability.

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.

In the scheme, the rotation of the driving bolt relative to the lock seat can be better limited by the matching mode, so that the relative rotation between the expansion bead and the lock seat is limited.

Preferably, the number of the battery packs is at least two, and the locking pieces are arranged in the edge area of each battery pack so as to be independently locked or unlocked at the bottom of the battery exchange vehicle.

In this scheme, be located the locking piece in marginal area and be convenient for with locking mechanism cooperation, make the installation more convenient, moreover, this structure sets up and makes the battery package atress more even for load distribution is in the edge of battery package, has effectively avoided the deformation of battery package. Preferably, the locking member is further provided at a middle region of each of the battery packs.

In this scheme, the locking piece in middle region cooperates with locking mechanism, avoids the load to concentrate in the marginal region, further disperses the load of battery package, avoids the battery package to warp.

Preferably, when the number of the locking pieces in the middle area is plural, the plurality of locking pieces are distributed along the length direction or the width direction of the body of the battery-changing vehicle;

and/or the locking piece positioned in the middle area is locked at the bottom of the battery-changing vehicle along the height direction of the battery-changing vehicle.

In the scheme, when the electric vehicle is distributed along the length direction, the electric vehicle has a larger space in the length direction, so that the arrangement of the locking piece and the locking mechanism is facilitated, and the rationality of the space layout is improved; when the battery packs are distributed along the width direction, the battery packs are convenient to adjust the positions of the battery changing trolley when being installed or detached, so that the locking pieces are matched with the locking mechanism, and the installation difficulty is reduced; when the locking piece locks along the height direction of the battery-changing vehicle, the space of the height direction of the battery-changing vehicle is fully utilized, and the rationality of the space layout is improved.

Preferably, the locking piece located in the middle area is penetratingly arranged in the battery pack.

In this scheme, increase atress region between locking piece and the battery package, improve the intensity that locking piece and battery package are connected, reduce the risk that locking piece and battery package drop.

Preferably, the plurality of locking mechanisms are provided in an edge region of the battery pack accommodating region in a longitudinal direction and/or a width direction of the body of the battery-powered vehicle.

In this scheme, be convenient for cooperate with the locking piece and realize the locking, make full use of trades vehicle length direction and/or width direction's space, be favorable to improving space layout's rationality.

Preferably, the locking mechanism is further disposed in a middle region of the battery pack accommodating region.

In this scheme, locking mechanism distributes simultaneously in the marginal region and the middle region of battery package holding area, cooperatees with the locking piece of battery package for load evenly distributed is in everywhere of battery package, has effectively avoided the deformation of battery package, improves the stability and the shock resistance of battery package greatly.

Preferably, when the plurality of locking mechanisms are located in the intermediate region, the plurality of locking mechanisms are distributed in a longitudinal direction or a width direction of the vehicle body.

In this scheme, locking mechanism spatial layout is reasonable to the in-process that the battery package got into the battery package and holds the district realizes the connection of locking piece and locking mechanism.

Preferably, the locking mechanism is distributed on at least one side of the battery pack accommodating area along the length and/or width direction of the vehicle body;

and the side wall of the battery pack is provided with the locking piece matched with the locking mechanism along the length and/or width direction of the vehicle body.

In this scheme, adopt above-mentioned structural style, locking mechanism is located at least one side of battery package accommodation area, and correspondingly, the locking piece is located the lateral wall of battery package, and spatial layout is reasonable to the battery package gets into the in-process that the battery package held the district, realizes the connection of locking piece and locking mechanism.

Preferably, at least two locking mechanisms are arranged on at least one side of the battery pack accommodating area along the width and/or length direction of the vehicle body, and the at least two locking mechanisms are arranged at intervals along the length and/or width direction of the vehicle body.

In this scheme, adopt above-mentioned structural style, set up a plurality of lock points between battery package and battery package hold the district, hold the district with the battery package through a plurality of locking mechanism and fix in the battery package holds the district to improve reliability and stability that the battery package locked in quick change support.

Preferably, the locking piece is positioned in the middle of the battery pack along the height direction of the battery pack;

alternatively, the locking member is located in an area below the middle of the battery pack;

alternatively, the locking member is located at the top of the battery pack.

In this scheme, adopt above-mentioned structural style, realize being connected with locking mechanism through the locking piece that is located battery package middle part or middle part below the region, the tie point is located battery package middle part or middle part below the region, reduces the battery package and needs unsettled region that sets up, and locking stability is high.

Preferably, the battery pack is located at the bottom of the vehicle beam or the battery pack is higher than the lower surface of the vehicle beam along the height direction of the vehicle body.

In this scheme, adopt above-mentioned structural style, set up the installation space of battery package in the roof beam bottom, make full use of the space of roof beam below, be favorable to improving space layout rationality. The battery pack part is higher than the lower surface of the vehicle beam, so that the space utilization rate is effectively improved.

Preferably, part of the battery pack is located on both sides of the vehicle beam and/or part of the battery pack is located between two vehicle beams.

In the scheme, the structure is adopted, and part of battery packs are arranged on two sides of the vehicle beam, so that the balance of the vehicle beam is improved, and the stability of the battery-powered vehicle in the running process of the battery-powered vehicle is improved. And part of battery packs are arranged between the two vehicle beams, so that the space between the two vehicle beams is fully utilized, and the space layout is reasonable.

Preferably, the quick-change bracket comprises a plurality of sub-brackets, the sub-brackets comprise a first cross beam and a first longitudinal beam, the first cross beam is arranged along the width direction of the vehicle body, the first longitudinal beam is arranged along the length direction of the vehicle body, the first cross beam and the first longitudinal beam are sequentially connected end to form the battery pack accommodating area, and one side of the first longitudinal beam, which faces the battery pack accommodating area, is provided with the locking mechanism.

In this scheme, adopt above-mentioned structural style, first aspect, first crossbeam and first longeron are connected end to end in proper order and are formed frame construction, are favorable to improving the intensity of sub-support. In the second aspect, the space formed by sequentially connecting the first cross beam and the first longitudinal beam end to end is used as a battery pack accommodating area, and the space layout is reasonable. In the third aspect, the damage of the independent sub-support does not affect the use of other sub-supports, the whole quick-change support does not need to be replaced, the cost is saved, and the replaceability of parts is high; in addition, the sub-brackets are respectively processed, so that the processing is convenient. In a fourth aspect, the locking mechanism is disposed on a side of the first longitudinal beam, which is close to the battery pack accommodating area, and the spatial arrangement is reasonable, so that the connection between the locking member and the locking mechanism is realized in the process that the battery pack enters the battery pack accommodating area.

Preferably, at least two sub-brackets are respectively positioned at least partially at the outer sides of the vehicle beams, the battery pack accommodating area is formed between two adjacent sub-brackets, and the locking mechanisms are respectively arranged at the outer sides of two adjacent first longitudinal beams on the two sub-brackets; or the number of the sub-brackets is not less than three, part of the sub-brackets are positioned between two vehicle beams, and part of the sub-brackets are at least partially positioned on the outer sides of the corresponding vehicle beams; alternatively, the quick-change bracket comprises a mounting beam, and at least part of the sub-bracket is connected to the vehicle beam through the mounting beam.

In this scheme, adopt above-mentioned structural style, the space between two adjacent sub-brackets is as the battery package accommodation area, and space layout is reasonable, save material. The outer sides of two adjacent first longitudinal beams in the two sub-brackets are respectively provided with a locking mechanism, so that the two sides of a battery pack accommodating area formed between the two adjacent sub-brackets are respectively provided with the locking mechanisms, the feasibility of locking the battery pack in the battery pack accommodating area is realized, and the two sides of the battery pack can be connected with the battery pack accommodating area to improve the balance; the part of the battery pack positioned between the two vehicle beams is arranged on the corresponding sub-bracket without considering the installation position of the sub-bracket positioned outside the vehicle beams, so that the assembly is convenient; in addition, the connection point of the battery pack positioned between the two vehicle beams and the quick-change bracket is positioned on the corresponding sub-bracket, but is not connected with the sub-bracket at the outer side of the vehicle beam, so that the deformation of the sub-bracket at the outer side of the vehicle beam caused by the stress of the battery pack arranged opposite to the vehicle beam is reduced; the sub-support and the vehicle are connected through the mounting beam, so that the situation that the vehicle is replaced in the running process is avoided, the sub-support falls off from the beam, and further damage to the battery pack is avoided.

Preferably, the quick-change bracket comprises a bracket body and a partition, the partition is connected to the bracket body, the partition separates the bracket body to form at least two battery pack accommodating areas, and the partition is provided with the locking mechanism along the width direction of the vehicle body.

In this scheme, adopt above-mentioned structural style, form independent battery package through the separator and hold the district to install locking mechanism on the separator with the realization with the locking of battery package, need not to reserve the spare part installation space that is used for installing locking mechanism again, spatial layout is reasonable.

Preferably, the bracket body comprises a second cross beam and a mounting beam, the mounting beam is connected to the vehicle beam, the second cross beam is arranged along the width direction of the vehicle body, the second cross beam is connected to two ends of the mounting beam, and two ends of the partition piece are respectively connected with the second cross beam.

In this scheme, adopt above-mentioned structural style, through the connection between installation Liang Shixian second crossbeam and the roof beam, the second crossbeam is connected in the both ends of installation roof beam, strengthens the connection between second crossbeam and the installation roof beam. In addition, the second crossbeam is connected respectively at the both ends of separator, and the connection effect is stable, avoids separating of separator.

Preferably, the bracket body further comprises a second longitudinal beam, the second longitudinal beam is arranged along the length direction of the vehicle body, the second longitudinal beam is connected with the second cross beam end to end in sequence, and the second longitudinal beam is provided with the locking mechanism.

Preferably, the mounting beam is attached to the top, side or bottom of the vehicle beam.

In this scheme, adopt above-mentioned structural style, make full use of roof portion, lateral part or the space of bottom of roof beam, realize the installation of installation roof beam, be favorable to improving space layout rationality.

Preferably, the quick-change bracket comprises two groups of sub-brackets arranged at intervals along the width direction of the vehicle body, at least one side of each sub-bracket forms the battery pack accommodating area, each sub-bracket comprises a plurality of segmented beams arranged at intervals along the length direction of the vehicle body, each segmented beam is connected with the corresponding vehicle beam, and the corresponding segmented beams are provided with the corresponding locking mechanism.

Preferably, each of the segmented beams is provided with a connecting plate connected to the vehicle beam, and the connecting plates and the locking mechanism are arranged in a staggered manner.

In the scheme, the structure is adopted, the connecting plates are respectively arranged on each sectional beam, the connection between the single sectional beam and the vehicle beam is realized, and the materials of the required connecting plates are saved.

Preferably, the quick-change bracket comprises two fixing beams arranged at intervals along the width direction of the vehicle body, the fixing beams are connected to the vehicle beams, at least one side of each fixing beam forms the battery pack accommodating area, and the fixing beams are provided with the locking mechanism.

Preferably, the quick-change bracket further comprises a vehicle end connector and a mounting assembly, each battery pack accommodating area is respectively provided with the mounting assembly, the mounting assembly is connected to the quick-change bracket, and the vehicle end connector is arranged on the mounting assembly.

In this scheme, adopt above-mentioned structural style, through set up the car end connector in every battery package holds the district, each battery package of being convenient for realizes the independent power supply to the battery car that trades to satisfy the branch case demand. By reserving the installation space for the vehicle-end connector on the installation component, other space occupation can be avoided, and the space layout rationality can be improved.

Preferably, the mounting assembly comprises a mounting rod and a mounting block, wherein the mounting rod is connected to the side wall of the mounting block and is mounted on the quick-change bracket, and the mounting block is used for mounting the vehicle-end connector;

or, the installation component includes the mounting panel, the mounting panel connect in quick change support, the car end connector set up in on the mounting panel.

In this scheme, adopt above-mentioned structural style for install the installation piece of car end connector and fix on quick change support through the installation member, compare in the length through increasing the installation piece for the both ends of installation piece can direct mount in quick change support, save material's use. The mounting plate of the mounting vehicle end connector is directly connected to the quick-change bracket, so that the assembly efficiency is improved, and the processing of parts is facilitated.

Preferably, the quick-change bracket is further provided with a first limiting mechanism, and the first limiting mechanism is used for being matched with a first limiting part at the top of the battery pack so as to position the battery pack; and/or, the side around the battery pack accommodating area is respectively provided with a second limiting mechanism, the side wall of the battery pack is provided with a second limiting part matched with the second limiting mechanism, one of the second limiting mechanism and the second limiting part is a limiting seat, the other is a limiting bulge, the limiting seat is provided with an elastic sheet, and the limiting bulge is in butt joint with the elastic sheet.

In this scheme, adopt above-mentioned structural style, realize the location between battery package and the quick change support through first stop gear and first spacing portion to play the guide effect when the battery package is installed to the quick change support, with the installation accuracy of mentioning the battery package and getting into in the battery package accommodation area, improve the installation effectiveness of battery package. Meanwhile, after the battery pack is mounted on the quick-change bracket, the first limiting mechanism and the first limiting part which are matched with each other can limit the battery pack, so that shaking of the battery pack is reduced or avoided; the spacing seat provides installation space for the elastic sheet, and the elastic sheet is used for preventing the rigidity collision between battery package and the quick change support, realizes elastic buffering, through elastic sheet and spacing protruding cooperation, restricts the displacement of battery package in the battery package holding area, prevents that the battery package from damaging.

Preferably, the quick-change bracket further comprises a protection plate, and the protection plate covers the top of the battery pack.

In this scheme, adopt above-mentioned structural style, the top of battery package is covered and is had the protection shield, reduces debris such as dust, rainwater and gets into battery package accommodation area to avoid causing the influence to the performance of battery package.

Preferably, a buffer pad is arranged on one side of the protection plate facing the top of the battery pack, and/or an avoidance part is arranged on one side of the protection plate facing the top of the battery pack.

In this scheme, adopt above-mentioned structural style, prevent that the battery package from getting into the in-process of quick change support and scraping the battery package surface, play the effect of protection battery package, in addition, car end connector mountable is on the protection shield, sets up the blotter in car end connector's periphery side, avoids trading electric vehicle in the in-process of traveling, and battery package and protection shield produce and collide with, also reduce the rocking of battery package. The avoidance part is arranged in the protection plate, so that wiring is convenient, the vehicle end connector can be installed in the avoidance part, the space layout is reasonable, and contact interference between the vehicle end connector and the protection plate is avoided.

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

In this scheme, adopt above-mentioned structural style, as the electric truck of large-scale battery replacement vehicle, because the capacity demand to the battery package is higher, divide the case with the battery package to set up the back, conveniently change the battery package, laborsaving when changing the battery package.

The invention has the positive progress effects that: according to the battery changing vehicle, the plurality of battery packs are respectively installed in the plurality of battery containing and accommodating areas, so that the plurality of battery packs are fixed on the body of the battery changing vehicle through the quick-change bracket; in the second aspect, after the battery packs are placed in the boxes, different numbers of battery packs can be installed in a matching mode according to the electricity consumption required by the battery exchange vehicle, so that the compatibility is high; in the third aspect, the battery packs are arranged in the boxes, so that compared with the whole battery packs, large-scale conveying equipment is not required to be adopted for conveying the battery packs in the boxes, and the material cost of the equipment is reduced. In addition, a locking mechanism is arranged in each battery pack accommodating area, so that each battery pack is conveniently and respectively fixed in the corresponding battery pack accommodating area through a locking piece, and each battery pack is independently installed to meet the box separation requirement; in addition, through setting up locking mechanism at every battery package accommodation area, each battery package of being convenient for is fixed respectively in corresponding battery package accommodation area through the locking piece to independent installation between each battery package is in order to satisfy the branch case demand. Each battery pack is independently locked at the bottom of the vehicle body of the electric vehicle in a bead expansion locking mode, the disassembly and the assembly are not affected, and the disassembly and the assembly flexibility are higher; each battery pack is connected to the bottom of the vehicle body of the battery replacement vehicle along the vertical direction, so that the battery packs can be conveniently disassembled and assembled, and the disassembly and assembly efficiency of the battery packs is improved.

Drawings

Fig. 1 is a schematic structural diagram of a quick-change bracket according to embodiment 1 of the present invention.

Fig. 2 is an assembly schematic diagram of a quick-change bracket and a battery pack according to embodiment 1 of the present invention.

Fig. 3 is a schematic installation view of a quick-change bracket according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of an electric vehicle of embodiment 1 of the present invention.

Fig. 5 is a schematic structural view of a battery pack according to embodiment 1 of the present invention.

Fig. 6 is a schematic diagram illustrating the cooperation between the second limiting mechanism and the second limiting portion according to embodiment 1 of the present invention.

Fig. 7 is a schematic structural diagram of an expanded bead locking structure in embodiment 1 of the present invention.

Fig. 8 is a cross-sectional view of the bead lock structure of embodiment 1 of the present invention.

Fig. 9 is a bottom view of the bead lock structure of embodiment 1 of the present invention.

Fig. 10 is a schematic structural diagram of a quick-change bracket according to embodiment 2 of the present invention.

Fig. 11 is an assembly schematic diagram of a quick-change bracket and a battery pack according to embodiment 2 of the present invention.

Fig. 12 is a schematic installation view of a quick-change bracket according to embodiment 2 of the present invention.

Fig. 13 is a schematic structural view of an electric vehicle of embodiment 2 of the present invention.

Fig. 14 is a schematic structural view of a quick-change bracket according to embodiment 3 of the present invention.

Fig. 15 is an assembly schematic diagram of a quick-change bracket and a battery pack according to embodiment 3 of the present invention.

Fig. 16 is a schematic view showing the installation of the quick-change bracket according to embodiment 3 of the present invention.

Fig. 17 is a schematic structural view of an electric vehicle according to embodiment 3 of the present invention.

Fig. 18 is a schematic structural diagram of a quick-change bracket according to embodiment 4 of the present invention.

Fig. 19 is an assembly schematic diagram of a quick-change bracket and a battery pack according to embodiment 4 of the present invention.

Fig. 20 is a schematic installation view of a quick-change bracket according to embodiment 4 of the present invention.

Fig. 21 is a schematic structural view of an electric vehicle according to embodiment 4 of the present invention.

Description of the reference numerals

The vehicle body 1, the vehicle body 11, the quick-change bracket 2, the battery pack accommodation region 21, the lock mechanism 211, the lock seat 2111, the lock hole 21111, the lock chamber 21112, the sub-bracket 22, the first cross member 221, the first side member 222, the mounting beam 23, the first mounting plate 231, the second mounting plate 232, the escape opening 2321, the reinforcing rib 233, the bracket body 24, the second cross member 241, the second side member 242, the partition 25, the branching frame 26, the segmented beam 261, the connection plate 262, the vehicle end connector 27, the mounting assembly 28, the mounting rod 281, the mounting block 282, the first limiting mechanism 3, the second guide surface 31, the second limiting mechanism 4, the limiting protrusion 41, the battery pack 5, the lock piece 51, the connection post 511, the lock hole 5111, the connection post limiting step 5112, the lock ball 512, the driving bolt 513, the driving ball 514, the mounting sleeve 515, the first limiting step 5151, the second limiting step 5152, the first limiting portion 52, the second limiting portion 53, the limiting seat 531, the elastic piece 5311, the guide inclined surface 53111, the battery end connector 54, and the electric vehicle 6

Detailed Description

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

Example 1

As shown in fig. 1-9, an embodiment of the present invention provides an electric vehicle 6. The electric vehicle 6 includes automobile body 1, quick change support 2 and a plurality of battery package 5, quick change support 2 connects on the roof beam 11 of automobile body 1, the quick change support 2 forms a plurality of battery package along the width direction of automobile body 1 and holds district 21, be equipped with locking mechanism 211 in every battery package holds district 21, battery package 5 has locking piece 51, locking piece 51 and locking mechanism 211 are through rising pearl locking mode detachable connection, a plurality of battery packages 5 are respectively through locking piece 51 with rising pearl locking mode independent connection in corresponding battery package holds district 21, a plurality of battery packages 5 are arranged side by side along the width direction of automobile body 1. The plurality of battery packs 5 are respectively installed through the plurality of battery pack accommodating areas 21, and the plurality of battery packs 5 are respectively arranged and fixed on the body 1 of the electric vehicle 6 in parallel along the width direction of the body 1 through the quick-change bracket 2, so that the battery pack box-dividing design is realized. In the first aspect, compared with a whole large battery pack in the traditional design, the plurality of independent battery packs 5 are adopted, and under the condition that the electric vehicle 6 needs the same capacity, the independent battery packs 5 are smaller in relative volume and weight, convenient to install and beneficial to standardization of the battery packs; in the second aspect, after the battery packs are placed in the boxes, different numbers of battery packs 5 can be installed in a matching manner according to the power consumption required by the electric vehicle 6, so that the compatibility is strong; in the third aspect, the battery packs are arranged in boxes, and compared with the whole battery packs, the independent battery packs 5 do not need to adopt large-scale conveying equipment to convey the battery packs in boxes, so that the requirement on the battery replacement equipment is reduced. In addition, a plurality of battery packs are arranged along the width direction of the vehicle body 1, the structure arrangement is compact, the battery packs can be better arranged by utilizing the space between the vehicle beams 11 of the vehicle body 1 and the space on two sides, the installation space is saved, the locking mechanism can be better arranged by utilizing the length direction of the vehicle body 1, the bearing stability of the battery packs 5 is facilitated, and convenience is provided for simultaneous power exchange on two sides.

The number of the battery packs 5 is at least two, and a plurality of locking members 51 are provided in the edge region of each battery pack 5 to be independently locked or unlocked to the bottom of the battery-powered vehicle. In the present embodiment, as shown in fig. 2 to 4, the number of the battery packs 5 is three.

In the present embodiment, as shown in fig. 5, the locking member 51 is directly mounted on the side wall of the battery pack 55. In other embodiments, the locking member 51 is mounted on the flange of the battery pack 5, or the locking member 51 is mounted on the battery pack 5 by a transfer bracket. The adapting support may be an integral support, that is, the battery pack 5 is fixedly provided with the integral adapting support, the locking member 51 is mounted on the adapting support, and of course, the adapting support may also be separately provided, that is, one end of the adapting support is fixedly provided on the battery pack 5, and the other end protrudes from the battery pack 5 to be mounted with the locking member 51.

Preferably, the locking piece 51 is further disposed in a middle area of each battery pack 5, and the locking piece 51 is distributed in an edge area and a middle area of the battery pack 5, so that loads are uniformly distributed in all positions of the battery pack 5, deformation of the battery pack 5 is effectively avoided, and stability and anti-seismic performance of the battery pack 5 are greatly improved.

In the present embodiment, the plurality of locking pieces 51 are provided in the intermediate region, and the plurality of locking pieces 51 are distributed along the longitudinal direction of the body 1 of the battery-powered vehicle. The space layout of the locking member 51 is reasonable, so that the connection between the locking member 51 and the locking mechanism 211 is realized in the process that the battery pack 5 enters the accommodating area 21 of the battery pack 5. In other alternative embodiments, the plurality of locking pieces 51 may also be distributed in the width direction of the body 1 of the electric vehicle.

Specifically, the locking piece 51 located in the middle area is locked to the bottom of the electric vehicle by being locked in the height direction of the electric vehicle. The installation space of the battery pack 5 is arranged in the height direction of the battery exchange vehicle, so that the space in the height direction of the battery exchange vehicle is fully utilized, and the space layout rationality is improved.

Specifically, the locking member 51 located in the middle region is provided penetrating the battery pack 5. The stress area between the locking piece 51 and the battery pack 5 is increased, the connection strength of the locking piece 51 and the battery pack 5 is improved, and the risk that the locking piece 51 and the battery pack 5 fall off is reduced.

Specifically, the plurality of locking mechanisms 211 are provided in the edge region of the housing region 21 of the battery pack 5 along the longitudinal direction of the body 1 of the battery-powered vehicle. In other alternative embodiments, the plurality of locking mechanisms 211 may also be provided in the edge region of the battery pack accommodating region 21 in the width direction of the body 1 of the electric vehicle.

Specifically, the plurality of locking mechanisms 211 are further arranged in the middle area of the battery pack accommodating area 21, the locking mechanisms 211 are simultaneously distributed in the edge area and the middle area of the battery pack accommodating area 21 and matched with the locking pieces 51 of the battery pack 5, so that loads are uniformly distributed in all positions of the battery pack 5, deformation of the battery pack 5 is effectively avoided, and stability and anti-seismic performance of the battery pack 5 are greatly improved.

In the present embodiment, a plurality of lock mechanisms 211 are provided in the intermediate region, and the plurality of lock mechanisms 211 are distributed in the longitudinal direction of the vehicle body 1. The locking mechanism 211 is spatially arranged reasonably so that the connection between the locking member 51 and the locking mechanism 211 is achieved in the process of the battery pack 5 entering the battery pack accommodating area 21. In other alternative embodiments, the plurality of locking mechanisms 211 may also be distributed in the width direction of the vehicle body 1.

Along the length direction of the vehicle body 1, the locking mechanism 211 is distributed on at least one side of the battery pack accommodating area 21, and the side wall of the battery pack 5 is provided with a locking piece 51 matched with the locking mechanism 211. The locking mechanism 211 is located on at least one side of the battery pack accommodating area 21, and accordingly, the locking member 51 is located on the side wall of the battery pack 5, so that the space layout is reasonable, and the connection between the locking member 51 and the locking mechanism 211 is realized in the process that the battery pack 5 enters the battery pack accommodating area 21. Preferably, the locking mechanism 211 is distributed on both sides of the battery pack accommodating area 21 along the longitudinal direction of the vehicle body 1. The locking mechanism 211 is located at two sides of the battery pack accommodating area 21, and the locking points are located at two sides of the battery pack 5, so that the two sides of the battery pack 5 can be connected with the battery pack accommodating area 21, and balance is improved.

In other embodiments, as an alternative means, the locking mechanism 211 is distributed on at least one side of the battery pack accommodating area 21 in the width direction of the vehicle body 1, and the side wall of the battery pack 5 is provided with the locking piece 51 that cooperates with the locking mechanism 211. Preferably, the locking mechanism 211 is distributed on both sides of the battery pack accommodating area 21 along the width direction of the vehicle body 1. Alternatively, the locking mechanism 211 is distributed on at least one side of the battery pack accommodating area 21 along the length direction of the vehicle body 1, and the side wall of the battery pack 5 is provided with a locking piece 51 matched with the locking mechanism 211; the locking mechanism 211 is distributed on at least one side of the battery pack accommodating area 21 along the width direction of the vehicle body 1, and the side wall of the battery pack 5 is provided with a locking piece 51 engaged with the locking mechanism 211. Preferably, the locking mechanism 211 is distributed on the periphery side of the battery pack accommodating area 21, and the locking pieces 51 on the periphery side wall of the battery pack 5 are fixed in the battery pack accommodating area 21 through the locking mechanism 211, so that the locking effect is stable, and the battery pack 5 is further prevented from falling off.

At least one side of the battery pack accommodating region 21 is provided with at least two locking mechanisms 211 in the width direction of the vehicle body 1, and the at least two locking mechanisms 211 are arranged at intervals in the length direction of the vehicle body 1. At one side of the battery pack accommodating area 21, a plurality of locking points are arranged between the battery pack 5 and the battery pack accommodating area 21, and the battery pack 5 is fixed in the battery pack accommodating area 21 through a plurality of locking mechanisms 211, so that the reliability and stability of the battery pack 5 locked in the quick-change bracket 2 are improved. Preferably, at least two locking mechanisms 211 are provided on both sides of the battery pack accommodating area 21 in the width direction of the vehicle body 1.

In other embodiments, as an alternative means, at least two locking mechanisms 211 are provided on one side of the battery pack accommodating region 21 in the longitudinal direction of the vehicle body 1, and at least two locking mechanisms 211 are provided at intervals in the width direction of the vehicle body 1. Preferably, at least two locking mechanisms 211 are provided on both sides of the battery pack accommodating area 21 in the longitudinal direction of the vehicle body 1. Alternatively, at least two locking mechanisms 211 are provided on at least one side of the battery pack accommodating region 21 in the width direction of the vehicle body 1, and the at least two locking mechanisms 211 are provided at intervals in the length direction of the vehicle body 1; along the length direction of the vehicle body 1, one side of the battery pack accommodating region 21 is provided with at least two locking mechanisms 211, and the at least two locking mechanisms 211 are arranged at intervals along the width direction of the vehicle body 1. Preferably, at least two locking mechanisms 211 are provided on both sides of the battery pack accommodating region 21 in the width direction of the vehicle body 1; along the length direction of the vehicle body 1, at least two locking mechanisms 211 are also provided on both sides of the battery pack accommodating area 21.

The locking member 51 is located at or below the middle of the battery pack 5 in the height direction of the battery pack 5. The locking piece 51 positioned in the middle or lower middle of the battery pack 5 is connected with the locking mechanism 211, the connecting point is positioned in the middle or lower middle of the battery pack 5, the area of the battery pack 5 needing to be suspended is reduced, and the locking stability is high.

Of course, in other embodiments, the locking member 51 may be located in an area above the middle of the battery pack 5 in the height direction of the battery pack 5, such as the locking member 51 being located at the top of the battery pack 5.

The battery pack 5 is located at the bottom of the vehicle body 11 in the height direction of the vehicle body 1. The installation space of the battery pack 5 is formed in the bottom of the vehicle beam 11, the space below the vehicle beam 11 is fully utilized, the rationality of the space layout is improved, the ground clearance of the lower surface of the battery pack 5 is increased, and the battery replacement equipment can conveniently enter and exit the bottom of the battery pack 5.

In other embodiments, along the height direction of the vehicle body 1, the battery pack 5 is partially higher than the lower surface of Che Liang 11, so that the space utilization is effectively improved, the ground clearance of the lower surface of the battery pack 5 is increased, and the battery exchange equipment can conveniently enter and exit the bottom of the battery pack 5.

The partial battery packs 5 are positioned at two sides of the vehicle beam 11, and the partial battery packs 5 are arranged at two sides of the vehicle beam 11 so as to improve the balance of the vehicle beam 11, thereby being beneficial to improving the stability of the electric vehicle 6 in the running process.

In other embodiments, as an alternative, part of the battery pack 5 is located between two vehicle beams 11. And a part of battery packs 5 are arranged between the two vehicle beams 11, so that the space between the two vehicle beams 11 is fully utilized, and the space layout is reasonable. Alternatively, part of the battery packs 5 are located on both sides of the vehicle beam 11, and part of the battery packs 5 are located between the two vehicle beams 11.

The quick-change bracket 2 comprises a plurality of sub-brackets 22, the sub-brackets 22 comprise a first cross beam 221 and a first longitudinal beam 222, the first cross beam 221 is arranged along the width direction of the vehicle body 1, the first longitudinal beam 222 is arranged along the length direction of the vehicle body 1, the first cross beam 221 and the first longitudinal beam 222 are sequentially connected end to form a battery pack accommodating area 21, and a locking mechanism 211 is arranged on one side of the first longitudinal beam 222, facing the battery pack accommodating area 21. In the first aspect, the first cross member 221 and the first longitudinal member 222 are sequentially connected end to form a frame structure, which is beneficial to improving the strength of the sub-bracket 22. In the second aspect, the space formed by connecting the first cross member 221 and the first longitudinal member 222 end to end in sequence is used as the battery pack accommodating area 21, and the space layout is reasonable. In the third aspect, the damage of the independent sub-support 22 does not affect the use of other sub-supports 22, the whole quick-change support 2 does not need to be replaced, the cost is saved, and the replaceability of parts is high; in addition, the sub-brackets 22 are respectively processed, which is convenient for processing. In the fourth aspect, the locking mechanism 211 is disposed on the side of the first longitudinal beam 222 near the battery pack accommodating area 21, and the space layout is reasonable, so that the connection between the locking member 51 and the locking mechanism 211 is realized in the process that the battery pack 5 enters the battery pack accommodating area 21.

At least two sub-brackets 22 are not less than two, at least two sub-brackets 22 are respectively at least partially positioned on the outer sides of the vehicle beam 11, a battery pack accommodating area 21 is formed between two adjacent sub-brackets 22, and locking mechanisms 211 are respectively arranged on the outer sides of two adjacent first longitudinal beams 222 on the two sub-brackets 22. The space between two adjacent sub-brackets 22 is used as a battery pack accommodating area 21, so that the space layout is reasonable, and the materials are saved. The locking mechanism 211 is respectively arranged on the outer sides of two adjacent first longitudinal beams 222 in the two sub-brackets 22, so that the locking mechanism 211 is arranged on two sides of a battery pack accommodating area 21 formed between the two adjacent sub-brackets 22, the feasibility that the battery pack 5 is locked in the battery pack accommodating area 21 is realized, and the two sides of the battery pack 5 can be connected with the battery pack accommodating area 21 to improve balance.

The quick-change bracket 2 comprises a mounting beam 23, at least part of the sub-brackets 22 being connected to the vehicle beam 11 by means of the mounting beam 23. The sub-support 22 and the vehicle beam 11 are connected through the mounting beam 23, so that stable and reliable mounting of the sub-support 22 is ensured.

The mounting beam 23 is attached to the top, side or bottom of the vehicle beam 11. The space at the top, side or bottom of the vehicle beam 11 is fully utilized to realize the installation of the installation beam 23, which is beneficial to improving the rationality of the space layout.

Specifically, the mounting beam 23 includes a first mounting plate 231 and a second mounting plate 232, the first mounting plate 231 and the second mounting plate 232 are connected to each other, and the first mounting plate 231 and the second mounting plate 232 are disposed at a predetermined angle, so that the strength of the mounting beam 23 is increased. The reinforcing ribs 233 are connected between the first mounting plate 231 and the second mounting plate 232, so that the strength of the mounting beam 23 is improved, the deformation or fracture of the mounting beam 23 is reduced or avoided, and the service life of the mounting beam 23 is prolonged. Wherein, first mounting panel 231 and second mounting panel 232 are 90 degrees settings, and first mounting panel 231 laminating is connected in the lateral wall of roof beam 11, and second mounting panel 232 laminating is connected in first crossbeam 221, and strengthening rib 233 adopts platelike structure, and along the length direction of first mounting panel 231 or second mounting panel 232, and the quantity of strengthening rib 233 is a plurality of, and a plurality of strengthening rib 233 interval settings.

The quick-change bracket 2 further comprises a vehicle-end connector 27 and a mounting assembly 28, wherein each battery pack accommodating area 21 is respectively provided with the mounting assembly 28, the mounting assembly 28 is connected to the quick-change bracket 2, and the vehicle-end connector 27 is arranged on the mounting assembly 28. By providing the vehicle end connector 27 in each battery pack accommodating area 21, the individual battery packs 5 are facilitated to realize independent power supply to the electric vehicle 6, thereby meeting the case division requirement. The car end connector 27 is connected to the quick-change bracket 2 through the mounting assembly 28, so that the connection is stable and reliable, the mounting assembly 28 can be mounted by utilizing an idle area in the battery pack accommodating area 21, mounting interference with the locking mechanism 211 can be avoided, a mounting space can be reserved for the car end connector 27, other space occupation is avoided, and the space layout rationality is improved. The vehicle end connector 27 may include, but is not limited to, a vehicle end electrical connector and a vehicle end liquid cooled connector, which are in turn disposed on the mounting assembly 28.

Specifically, the upper surface of the battery pack 5 is provided with a battery end connector 54 (which may include, but is not limited to, a battery end electrical connector and a battery end liquid-cooled connector) that is in butt joint with the vehicle end connector 27, and in the process that the battery pack 5 enters the battery pack accommodating area 21 from bottom to top to realize locking, the battery end connector 54 is in butt joint with the vehicle end connector 27 located above the battery pack 5, only the displacement in the vertical direction is required, and the battery pack 5 can be connected with the vehicle end connector 27 without additionally moving the battery pack 5 back and forth and left and right, so that the installation is convenient.

Specifically, the second mounting plate 232 is partially located in the battery pack accommodating area 21, the portion of the second mounting plate 232 located in the battery pack accommodating area 21 is provided with the avoidance opening 2321, the vehicle end connector 27 installed in the battery pack accommodating area 21 can be partially arranged in the avoidance opening 2321, the space utilization rate is improved, and contact interference between the vehicle end connector 27 and the second mounting plate 232 is avoided.

As shown in fig. 1, the mounting assembly 28 includes a mounting lever 281 and a mounting block 282, the mounting lever 281 being attached to a side wall of the mounting block 282 and mounted on the quick-change bracket 2, the mounting block 282 being for mounting the vehicle-end connector 27. The installation block 282 for installing the car end connector 27 is fixed on the quick-change bracket 2 through the installation rod 281, compared with the length of the installation block 282 through increasing, the two ends of the installation block 282 can be directly installed on the quick-change bracket 2, and the use of materials is saved. Wherein the mounting block 282 is a plate-like member.

Specifically, two mounting bars 281 disposed at intervals are connected between the adjacent first stringers 222, a mounting block 282 is connected between the two mounting bars 281, and the vehicle-end connector 27 is disposed on the mounting block 282.

In other embodiments, the mounting assembly 28 includes a mounting plate that is coupled to the quick-change bracket 2 and the vehicle end connector 27 is disposed on the mounting plate. The mounting plate for mounting the vehicle-end connector 27 is directly connected to the quick-change bracket 2, so that the assembly efficiency is improved, and the processing of parts is facilitated.

Specifically, as shown in fig. 1 and 3, the number of the sub-brackets 22 is two, the two sub-brackets 22 are arranged along the width direction of the vehicle body 1 to form three battery pack accommodating areas 21, and the two sub-brackets 22 are respectively located at least partially outside the vehicle body 11 such that the battery pack 5 located in the middle is disposed opposite to the vehicle body 1 and below the vehicle body 11, and the battery packs 5 located at both sides are respectively located at both sides of the vehicle body 11. The locking mechanism 211 is disposed on a side, close to the respective battery pack accommodating area 21, of the first longitudinal beams 222 in each sub-bracket 22, and besides, the locking mechanism 211 is mounted on a side, close to the middle, of the battery pack accommodating area 21, of the two first longitudinal beams 222 located in the middle, so as to lock the battery pack 5 located in the middle. The number of the mounting beams 23 is two, and the two mounting beams 23 are respectively mounted on the two sub-brackets 22 to realize the connection of the sub-brackets 22 with the side walls of the vehicle beam 11. In addition, a mounting assembly 28 for mounting the vehicle end connector 27 is mounted to each of the two sub-brackets 22, and the mounting assembly 28 is also mounted between the two sub-brackets 22.

The quick-change bracket 2 is also provided with a first limiting mechanism 3, and the first limiting mechanism 3 is used for being matched with a first limiting part 52 at the top of the battery pack 5 so as to position the battery pack 5. The positioning between the battery pack 5 and the quick-change bracket 2 is realized through the first limiting mechanism 3 and the first limiting part 52, so that a guiding effect is realized when the battery pack 5 is installed in the quick-change bracket 2, the installation accuracy of the battery pack 5 in the battery pack accommodating area 21 is mentioned, and the installation efficiency of the battery pack 5 is improved. Meanwhile, after the battery pack 5 is mounted on the quick-change bracket 2, the first limiting mechanism 3 and the first limiting part 52 which are matched with each other can limit the battery pack 5, so that the battery pack 5 is prevented from shaking in the running process of the vehicle.

Specifically, one of the first limiting mechanism 3 and the first limiting portion 52 is a positioning pin, the other is a positioning hole, in this embodiment, the first limiting mechanism 3 is a positioning pin, and the first limiting portion 52 is a positioning hole; in other embodiments, the first limiting mechanism 3 may be a positioning hole, and the first limiting portion 52 may be a positioning pin. Further, the end of the locating pin, which is close to the locating hole, is provided with a second guide surface 31, so that the locating pin structure can be conveniently inserted into the limiting hole. The outer diameter of the locating pin transits from the outer end to the end close to the locating hole from small to large, so that when the locating pin is conveniently inserted into the locating hole, a certain offset error is allowed, and the alignment efficiency of the locating pin inserted into the locating hole is improved. Further, the cross sections of the positioning pins and the positioning holes are non-circular, so that the positioning pins and the positioning holes, which are fitted to each other, can restrict the rotation of the battery pack 5 in addition to the degrees of freedom of the battery pack 5 in the width direction and the length direction along the vehicle body 1. Alternatively, the end of the positioning pin, which is close to the positioning hole, is provided with a second guiding surface 31, and the cross sections of the positioning pin and the positioning hole are non-circular.

Specifically, the top of the battery pack 5 is provided with a positioning hole as the first limiting portion 52, and the mounting lever 281 is mounted with a positioning pin fitted with the positioning hole as the first limiting mechanism 3. In the process that the battery pack 5 enters the battery pack accommodating area 21 from bottom to top, the first limiting mechanism 3 and the first limiting part 52 can be abutted. In other embodiments, the first limiting portion may also be disposed at other positions on the quick-change bracket, which is not particularly limited in this embodiment.

In another embodiment, the second limiting mechanisms 4 are respectively disposed on the peripheral sides of the battery pack accommodating area 21, the second limiting portions 53 matched with the second limiting mechanisms 4 are disposed on the side walls of the battery pack 5, one of the second limiting mechanisms 4 and the second limiting portions 53 is a limiting seat 531, the other is a limiting protrusion 41, an elastic piece 5311 is disposed on the limiting seat 531, and the limiting protrusion 41 is abutted to the elastic piece 5311. Wherein, the second limiting mechanism 4 is a limiting protrusion 41, and the second limiting portion 53 is a limiting seat 531; alternatively, the second limiting mechanism 4 is a limiting seat 531, and the second limiting portion 53 is a limiting protrusion 41. The spacing seat 531 provides installation space for the elastic piece 5311, and the elastic piece 5311 is used for preventing the rigid collision between battery package 5 and quick change support 2, realizes elastic buffering, through the cooperation of elastic piece 5311 and spacing protruding 41, restricts the displacement of battery package 5 in battery package accommodation area 21, prevents that battery package 5 from damaging.

Specifically, the end portions of the elastic pieces 5311 are disposed obliquely to form a guide slope 53111. The guiding inclined plane 53111 makes the elastic piece 5311 have better elasticity and better guiding property, and in the process of installing the battery pack 5 in the battery pack accommodating area 21 from bottom to top, the guiding inclined plane 53111 contacts the limiting protrusion 41 first, so that the risk of hard collision between the battery pack 5 and the quick-change bracket 2 can be reduced.

The quick-change holder 2 further comprises a protective plate, which covers the top of the battery pack 5. The upper side of the battery pack 5 is covered with a protection plate, and impurities such as dust and rainwater are reduced to enter the battery pack accommodating area 21 so as to avoid influencing the performance of the battery pack 5.

Specifically, the protection plate is mounted inside the sub-mount 22 and detachably connected or integrally formed with the sub-mount.

The protection shield is equipped with the blotter towards one side at battery package 5 top, sets up the blotter and can prevent that battery package 5 from scraping battery package surface when removing, plays the effect of protection battery package 5, also can reduce the rocking of battery package 5. In addition, the vehicle end connector 27 may be mounted on the protection plate, and a gap is provided between the battery pack 5 and the protection plate in a region other than the junction of the vehicle end connector 27, and a cushion pad is provided to compensate for the gap, thereby ensuring uniform load distribution. Or, a relief portion is provided on the protection plate on a side facing the top of the battery pack 5. The avoidance part is arranged in the protection plate, so that wiring is convenient, the vehicle end connector 27 can be installed in the avoidance part, the space layout is reasonable, and contact interference between the vehicle end connector 27 and the protection plate is avoided.

In other embodiments, a cushion is provided on a side of the protection plate facing the top of the battery pack 5, and a relief portion is provided on a side of the protection plate facing the top of the battery pack 5.

As shown in fig. 7 and 8, the structure (locking device) of the bead-expanding locking mode includes a locking member 51 and a locking seat 2111, the locking member 51 includes a bead-expanding, and the battery pack 5 is independently locked to the quick-change bracket 2 of the battery-powered vehicle by detachable connection between the bead-expanding and the locking seat 2111, which is beneficial to improving the reliability and durability of locking.

One of the expansion bead or the lock seat 2111 is provided on the battery pack 5, and the other of the expansion bead or the lock seat 2111 is provided on the battery-powered vehicle. In this embodiment, the example is described in which all the expansion beads (locking members 51) are provided on the battery pack 5 and all the locking seats 2111 are provided on the quick-change bracket 2.

In other alternative embodiments, all the expansion beads may be disposed on the quick-change bracket 2, and all the lock receptacles 2111 may be disposed on the battery pack 5. Alternatively, a part of the expanded beads may be disposed on the battery pack 5, a part of the locking seats 2111 corresponding to the expanded beads may be disposed on the quick-change bracket 2, another part of the expanded beads may be disposed on the quick-change bracket 2, and another part of the locking seats 2111 corresponding to the expanded beads may be disposed on the quick-change bracket 2.

In the present embodiment, as shown in fig. 5, the locking member 51 is directly mounted on the side wall of the battery pack 55. In other alternative embodiments, the locking member 51 may be provided at a middle position of the battery pack 5 to ensure the stability of the connection of the battery pack 5 to the replacement vehicle. In this state, the locking member 51 needs to penetrate through the battery pack 5 from bottom to top, so that the lower end of the locking member 51 is matched with the battery exchange device, and the upper end of the locking member 51 is matched with the locking seat 2111, so that locking and unlocking of the battery pack 5 are realized.

In other alternative embodiments, when the lock base 2111 is disposed on the battery pack 5, the lock base 2111 may be disposed on a side wall of the battery pack 55, in which state the lock base 2111 is required to penetrate the battery pack 5 from bottom to top, so that the lower end of the lock base 2111 is engaged with the battery replacement device, and the upper end of the lock base 2111 is engaged with the locking member 51, so that locking and unlocking of the battery pack 5 are achieved.

Further, the locking member 51 is floatingly connected to the battery pack 5, and the locking seat 2111 is floatingly connected to the quick-change bracket 2. The floating connection can reduce the torque or vibration of the vehicle when the vehicle is subjected to steering torsion or jolt from being transmitted to the quick-change bracket 2, so that the influence of the torque or vibration on the quick-change bracket 2 is reduced.

In other alternative embodiments, the locking seat 2111 may be connected to the battery pack 5 in a floating manner, and the locking member 51 may be connected to the battery pack 5 in a floating manner.

In other alternative embodiments, the locking member 51 or the locking seat 2111 may be directly connected to the girder of the electric vehicle in a floating manner, so as to reduce the torque or vibration of the electric vehicle when the electric vehicle is subjected to steering torsion or jolt and further reduce the influence of the torque or vibration on the girder.

As shown in fig. 7 and 8, the expanding bead includes a connecting column 511 and a plurality of locking balls 512, and the locking balls 512 can move on the connecting column 511, so that the locking balls 512 are exposed out of the outer surface of the connecting column 511 or contract towards the inside of the connecting column 511, so as to realize that the locking balls 512 are locked on the lock seat 2111 in an abutting manner or the expanding bead and the lock seat 2111 are mutually unlocked. In this embodiment, the locking ball 512 is matched with the lock seat 2111 through the movement of the locking ball 512 relative to the connecting column 511, so as to lock and unlock the expansion bead and the lock seat 2111.

Specifically, when the locking operation of the battery pack 5 is performed, the locking balls 512 are driven to partially expose the connection posts 511 and engage with the inner side walls of the locking chambers 21112 of the locking seats 2111, thereby locking the battery pack; when the unlocking operation of the battery pack 5 is performed, the locking ball 512 is reset to the inside of the connection column 511, so that the expansion bead is separated from the lock seat 2111, and unlocking is achieved. Through the structure, the locking and unlocking of the expansion bead and the lock seat 2111 are more convenient and quicker.

In this embodiment, the connecting post 511 is a hollow post, and the connecting post 511 is provided with a plurality of locking holes 5111, the locking holes 5111 are arranged in one-to-one correspondence with the locking balls 512, and the diameter of the locking holes 5111 is smaller than that of the locking balls 512, so that the locking balls 512 can be partially exposed out of the connecting post 511 through the locking holes 5111 and cannot completely slip out of the connecting post 511.

In this embodiment, the number of the locking balls 512 is two, and the two locking balls 512 are disposed on opposite sides of the connecting post 511. In other alternative embodiments, the number of the locking balls 512 may be one or more, so long as the locking effect of the locking member 51 and the locking seat 2111 is ensured.

As shown in fig. 7 and 8, the locking member 51 further includes a driving assembly provided inside the connection column 511 and connected to the locking ball 512, the locking seat 2111 having a locking chamber 21112 for accommodating the connection column 511 and the locking ball 512, and the driving assembly for driving the locking ball 512 to move between a locking position and an unlocking position. When the locking ball 512 is at the locking position, the locking ball 512 is exposed out of the outer surface of the connecting column 511 and is clamped with the inner side wall of the locking chamber 21112; when the locking ball 512 is located at the unlock position, the locking ball 512 is contracted toward the inside of the connection post 511 and is reset to the inside of the connection post 511.

As shown in fig. 7 and 8, the driving assembly further includes a driving bolt 513 and a driving ball 514, the driving ball 514 is disposed at an end of the driving bolt 513 facing the locking ball 512, the driving ball 514 is disposed in the connecting column 511 and abuts against the locking ball 512, an internal thread is disposed in the connecting column 511, the internal thread is matched with the driving bolt 513, and the driving bolt 513 controls the driving ball 514 to apply a force for making the locking ball 512 at least partially extend out of the locking hole 5111 to the locking ball 512 by adjusting a spiral length of the connecting column 511. The arrangement of the driving bolt 513 and the driving ball 514 in the embodiment makes locking and unlocking of the expansion beads more convenient.

In this embodiment, the structure of the bead locking mode further includes an anti-rotation and anti-back structure, where the anti-rotation and anti-back structure is connected to the bead to prevent the relative rotation between the bead and the lock seat 2111, so as to ensure the stability of connection between the battery pack 5 and the vehicle.

In other alternative embodiments, an anti-rotation stop feature may be coupled to the locking base 2111 to prevent relative rotational movement between the tension bead and the locking base 2111.

Specifically, as shown in fig. 7, the locking member 51 further includes a mounting sleeve 515, the mounting sleeve 515 is fitted over the outer circumferential surface of the connection post 511, and the locking member 51 is connected to the battery pack 5 through the mounting sleeve 515. The outer peripheral surface of the connecting column 511 is provided with a connecting column limiting step 5112, the connecting column limiting step 5112 extends outwards from the outer peripheral surface of the connecting column 511, the inner peripheral surface of the mounting sleeve 515 is provided with a first limiting step 5151 and a second limiting step 5152, the first limiting step 5151 and the second limiting step 5152 extend inwards from the inner peripheral surface of the mounting sleeve 515, the connecting column limiting step 5112 is clamped between the first limiting step 5151 and the second limiting step 5152, and the two axial end surfaces of the connecting column limiting step 5112 are respectively abutted with the first limiting step 5151 and the second limiting step 5152, so that the movement of the connecting column 511 in the axial direction is limited, the rotation of the connecting column 511 in the circumferential direction can be limited through the surface friction force between the connecting column limiting step 5112 and the first limiting step 5151 and the second limiting step 5152, and further the relative rotation of the expanding bead and the lock seat 2111 is prevented.

In other alternative embodiments, the anti-rotation and anti-back-off structure may also be configured to limit the relative rotation between the expansion bead and the lock seat 2111 by a ratchet, pawl, and/or expansion bead, and/or engagement. More specifically, the above-mentioned engagement method is used to restrict the rotation of the driving bolt relative to the lock seat 2111, so as to restrict the relative rotation between the expansion bead and the lock seat 2111.

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.

In the locking process, the driving bolt 513 is rotated to move the driving bolt 513 relative to the connecting column 511 in a direction approaching the driving ball 514, so that the driving ball 514 continuously lifts up the driving ball 514, and further the driving ball 514 can squeeze the locking ball 512, so that the locking ball 512 extends out of the connecting column 511 and is clamped with the inner side wall of the locking chamber 21112, and locking is achieved.

In the unlocking process, the driving bolt 513 is rotated in the opposite direction to enable the driving bolt 513 to move away from the driving ball 514 relative to the connecting column 511, after the driving ball 514 loses the external force action of the driving bolt 513, the locking ball 512 is not pressed any more, and the locking ball 512 is reset into the connecting column 511, so that unlocking is achieved.

The electric vehicle 6 is an electric truck. As the electric truck of the large-sized electric vehicle 6, the battery pack 5 is convenient to replace after being arranged in a box due to higher capacity requirement, and labor is saved when the battery pack is replaced.

In another embodiment, the battery pack accommodating region 21 includes a plurality of sub-accommodating regions juxtaposed in the longitudinal direction of the vehicle body 1, the sub-accommodating regions being for individually mounting the battery packs 5. In other words, the region of the quick-change bracket 2 for mounting the battery pack 5 is divided into a plurality of sub-regions along the length direction and the width direction of the vehicle body 1 to individually mount the battery pack 5. The battery pack accommodating area 21 is internally provided with a plurality of sub accommodating areas, so that the volume and the weight of each battery pack adapting to each sub accommodating area can be further reduced, the installation is convenient, and the requirement on the battery exchange equipment can be further reduced; in addition, the sub-accommodation area is provided along the body length direction of the electric vehicle 6, and space along the body length direction is fully utilized, so that the structural arrangement is compact, and the improvement of the space layout rationality is facilitated. Specifically, a plurality of sub-accommodation regions are provided between two adjacent first stringers 222 along the longitudinal direction of the vehicle body 1.

Example 2

As shown in fig. 10-13, an embodiment of the present invention provides an electric vehicle 6. Which differs from the scheme in example 1 in that: the number of the sub-brackets 22 is not less than three, a part of the sub-brackets 22 is located between two of the vehicle beams 11, and a part of the sub-brackets 22 is located at least partially outside the corresponding vehicle beam 11. The at least three sub-brackets 22 are respectively positioned between the two vehicle beams 11 and outside the vehicle beams 11, so that the full utilization of the space at the bottom of the vehicle beams 11 and at the two sides of the vehicle beams 11 is realized, and the space utilization rate is high.

Specifically, as shown in fig. 10, 11 and 12, the number of the sub-brackets 22 is three, the three sub-brackets 22 are arranged along the width direction of the vehicle body 1 to form three battery pack accommodating areas 21, and the two sub-brackets 22 on the outer side are respectively located at least partially on the outer side of the vehicle beam 11 such that the sub-bracket 22 located in the middle is disposed opposite to the vehicle body 1 and below the vehicle beam 11, and the battery packs 5 located on both sides are respectively located on both sides of the vehicle beam 11. Wherein a locking mechanism 211 is provided on a side of the first longitudinal beam 222 in each sub-bracket 22 near the respective battery pack receiving area 21. The number of the mounting beams 23 is two, the sub-brackets 22 positioned in the middle are directly connected with the vehicle beam 11, and the sub-brackets 22 positioned at the two sides are respectively mounted on the vehicle beam 11 through the mounting beams 23. In addition, a mounting assembly 28 for mounting the vehicle end connector 27 is mounted to each of the three sub-brackets 22.

In another embodiment, the battery pack accommodating region 21 includes a plurality of sub-accommodating regions juxtaposed in the longitudinal direction of the vehicle body 1, the sub-accommodating regions being for individually mounting the battery packs 5. In other words, the region of the quick-change bracket 2 for mounting the battery pack 5 is divided into a plurality of sub-regions along the length direction and the width direction of the vehicle body 1 to individually mount the battery pack 5. The battery pack accommodating area 21 is internally provided with a plurality of sub accommodating areas, so that the volume and the weight of each battery pack adapting to each sub accommodating area can be further reduced, the installation is convenient, and the requirement on the battery exchange equipment can be further reduced; in addition, the sub-accommodation area is provided along the body length direction of the electric vehicle 6, and space along the body length direction is fully utilized, so that the structural arrangement is compact, and the improvement of the space layout rationality is facilitated. Specifically, a plurality of sub-housing sections are provided along the longitudinal direction of the vehicle body 1 inside the sub-mount 22 forming the same battery pack housing section 21.

Example 3

As shown in fig. 14-17, an embodiment of the present invention provides an electric vehicle 6. Which differs from the scheme in example 1 in that: the quick-change bracket 2 comprises a bracket body 24 and a partition member 25, wherein the partition member 25 is connected to the bracket body 24, the partition member 25 separates the bracket body 24 to form at least two battery pack accommodating areas 21, and a locking mechanism 211 is arranged on at least one side of the partition member 25 along the width direction of the vehicle body 1. The area inside the bracket body 24 is divided into at least two battery pack accommodating areas 21 through the dividing piece 25 to form at least two independent battery pack accommodating areas 21, and the bracket body 24 adopts an integral structure, so that the structural strength is high and the installation space is saved.

The bracket body 24 includes a second cross member 241 and a mounting beam 23, the mounting beam 23 is connected to the vehicle beam 11, the second cross member 241 is disposed along the width direction of the vehicle body 1, the second cross member 241 is connected to both ends of the mounting beam 23, and both ends of the partition 25 are respectively connected to the second cross member 241. The connection between the second cross member 241 and the vehicle beam 11 is achieved by the mounting beam 23, the second cross member 241 is connected to both ends of the mounting beam 23, and the connection between the second cross member 241 and the mounting beam 23 is reinforced. In addition, the second cross members 241 are respectively connected to both ends of the partition 25, so that the connection effect is stable and the separation of the partition 25 is prevented.

The bracket body 24 further includes a second longitudinal beam 242, the second longitudinal beam 242 is disposed along the length direction of the vehicle body 1, the second longitudinal beam 242 and the second cross beam 241 are connected end to end in sequence, and the side wall of the second longitudinal beam 242 facing the side of the partition 25 is provided with the locking mechanism 211. The second longitudinal beam 242 and the second transverse beam 241 are connected end to end in order to form a frame structure, improving the strength of the bracket body 24. In addition, the locking mechanism 211 is also arranged on the side, facing the partition 25, of the second longitudinal beam 242, so that the locking mechanism 211 is locked on both sides of the battery pack 5, and the reliability of connection between the battery pack 5 and the quick-change bracket 2 is further improved.

Specifically, as shown in fig. 14, 15 and 16, the bracket body 24 includes two second cross members 241 extending along the width direction of the vehicle body 1, and two second longitudinal members 242 extending along the length of the vehicle body 1, the second longitudinal members 242 and the second cross members 241 being connected end to end in sequence to form a frame structure, two spaced apart partitions 25 being connected between the two second cross members 241, the two partitions 25 dividing the bracket body 24 into three battery pack accommodation areas 21. The number of the mounting beams 23 is two, and two ends of the mounting beams 23 are respectively mounted on the two second cross beams 241 and connected to the side wall of the vehicle beam 11, so that the quick-change bracket 2 is mounted on the vehicle beam 11. In addition, a mounting assembly 28 is mounted between the two separators 25, and a mounting assembly 28 is mounted between the separator 25 and the adjacent second longitudinal beam 242, such that a mounting assembly 28 for mounting the vehicle end connector 27 is provided in each battery pack receiving area.

In another embodiment, the battery pack accommodating region 21 includes a plurality of sub-accommodating regions juxtaposed in the longitudinal direction of the vehicle body 1, the sub-accommodating regions being for individually mounting the battery packs 5. In other words, the region of the quick-change bracket 2 for mounting the battery pack 5 is divided into a plurality of sub-regions along the length direction and the width direction of the vehicle body 1 to individually mount the battery pack 5. The battery pack accommodating area 21 is internally provided with a plurality of sub accommodating areas, so that the volume and the weight of each battery pack adapting to each sub accommodating area can be further reduced, the installation is convenient, and the requirement on the battery exchange equipment can be further reduced; in addition, the sub-accommodation area is provided along the body length direction of the electric vehicle 6, and space along the body length direction is fully utilized, so that the structural arrangement is compact, and the improvement of the space layout rationality is facilitated. Specifically, a plurality of sub-accommodation regions are provided between adjacent two of the partitioning members 25 along the length direction of the vehicle body 1; a plurality of sub-accommodation regions are provided between the partition 25 and the second side member 242 along the longitudinal direction of the vehicle body 1.

Example 4

As shown in fig. 18-21, an embodiment of the present invention provides an electric vehicle 6. Which differs from the scheme in example 1 in that: the quick-change bracket 2 comprises two groups of sub-brackets 26 which are arranged at intervals along the width direction of the vehicle body 1, at least one side of each sub-bracket 26 forms a battery pack accommodating area 21, each sub-bracket 26 comprises a plurality of segmented beams 261 which are arranged at intervals along the length direction of the vehicle body 1, each segmented beam 261 is connected with the vehicle beam 11, and at least the outer side wall of each segmented beam 261 is provided with a locking mechanism 211. The number of the sub-brackets 26 can be increased or decreased according to actual needs, so that the flexibility is high, and the stability of the battery pack installation is improved.

Each of the segmented beams 261 is provided with a connecting plate 262 connected to the vehicle beam 11, and the connecting plates 262 and the locking mechanism 211 are arranged in a staggered manner. Each of the segmented beams 261 is provided with a connecting plate 262, so that stable connection of the single segmented beam 261 and the vehicle beam 11 is realized, and the required material of the connecting plate 262 is saved.

Specifically, the vehicle beam 11 is erected above the segmented beam 261, and the connecting plate 262 extends from the segmented beam 261 in a direction away from the vehicle beam 11 and abuts the corner portion of the vehicle beam 11. The connecting plate 262 is attached to the corner of the vehicle beam 11, and the stability of the connection between the connecting plate 262 and the vehicle beam 11 is enhanced.

Specifically, as shown in fig. 18, 19 and 20, the quick-change bracket 2 includes two sets of sub-brackets 26 provided at intervals along the width direction of the vehicle body 1 to form three juxtaposed battery pack accommodation regions 21. The number of the brackets 26 of each group is three, and the three brackets 26 of each group are arranged at intervals along the length direction of the body 1. Each of the branch frames 26 comprises a segmented beam 261, and a locking mechanism 211 and a connecting plate 262 which are arranged on the segmented beam 261, wherein the locking mechanism 211 and the connecting plate 262 are staggered, two locking mechanisms 211 are respectively arranged on two sides of the segmented beam 261, and the connecting plate 262 is arranged between the two locking mechanisms 211. In addition, along the length direction of the vehicle body 1, a mounting assembly 28 is mounted between the two branch frames 26 located in the middle, and the mounting assembly 28 is also mounted on the outer sides of the two branch frames 26 located in the middle, so that a mounting assembly 28 for mounting the vehicle-end connector 27 is provided in each battery pack accommodation area.

In another embodiment, the battery pack accommodating region 21 includes a plurality of sub-accommodating regions juxtaposed in the longitudinal direction of the vehicle body 1, the sub-accommodating regions being for individually mounting the battery packs 5. In other words, the region of the quick-change bracket 2 for mounting the battery pack 5 is divided into a plurality of sub-regions along the length direction and the width direction of the vehicle body 1 to individually mount the battery pack 5. The battery pack accommodating area 21 is internally provided with a plurality of sub accommodating areas, so that the volume and the weight of each battery pack adapting to each sub accommodating area can be further reduced, the installation is convenient, and the requirement on the battery exchange equipment can be further reduced; in addition, the sub-accommodation area is provided along the body length direction of the electric vehicle 6, and space along the body length direction is fully utilized, so that the structural arrangement is compact, and the improvement of the space layout rationality is facilitated. Specifically, a plurality of sub-accommodation areas are provided between the two-component brackets 26 along the length direction of the vehicle body 1; a plurality of sub-accommodation areas are provided along the longitudinal direction of the vehicle body 1 on the outer side of each component holder 26.

Example 5

The embodiment of the invention provides an electric vehicle 6. Which differs from the scheme in example 1 in that: the quick-change bracket 2 comprises two fixing beams which are arranged at intervals along the width direction of the vehicle body 1, the fixing beams are connected to the vehicle beam 11, at least one side of each fixing beam forms a battery pack accommodating area 21, and at least the outer side wall of each fixing beam is provided with a locking mechanism 211. The fixed beam can realize the installation of the battery pack 5, can realize the connection of the quick-change bracket 2 and the electric vehicle 6, has a simple structure, is convenient to operate, is beneficial to saving the cost and improving the assembly efficiency.

Specifically, two fixing beams disposed at intervals in the width direction of the vehicle body 1 form three battery pack accommodating areas 21, two of each fixing beam are provided with a locking mechanism 211 to achieve connection with the battery pack 5, and the upper end of each fixing beam is mounted to the side wall of the vehicle beam 11. Wherein, the fixed beam adopts the platy structure, is convenient for process. In addition, a mounting assembly 28 is mounted between the two fixed beams, and a mounting assembly 28 is also mounted on the outside of each fixed beam, such that a mounting assembly 28 for mounting the vehicle end connector 27 is provided in each battery pack accommodating area.

In another embodiment, the battery pack accommodating region 21 includes a plurality of sub-accommodating regions juxtaposed in the longitudinal direction of the vehicle body 1, the sub-accommodating regions being for individually mounting the battery packs 5. In other words, the region of the quick-change bracket 2 for mounting the battery pack 5 is divided into a plurality of sub-regions along the length direction and the width direction of the vehicle body 1 to individually mount the battery pack 5. The battery pack accommodating area 21 is internally provided with a plurality of sub accommodating areas, so that the volume and the weight of each battery pack adapting to each sub accommodating area can be further reduced, the installation is convenient, and the requirement on the battery exchange equipment can be further reduced; in addition, the sub-accommodation area is provided along the body length direction of the electric vehicle 6, and space along the body length direction is fully utilized, so that the structural arrangement is compact, and the improvement of the space layout rationality is facilitated. Specifically, a plurality of sub-accommodation areas are provided between the two fixed beams along the length direction of the vehicle body 1; a plurality of sub-accommodation areas are provided along the longitudinal direction of the vehicle body 1 on the outer side of each fixed beam.

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. A battery-change vehicle, characterized in that it comprises:

a vehicle body;

2. The battery powered vehicle of claim 1, wherein the bead-expanding locking means comprises the locking member and the locking mechanism; 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 quick-change bracket.

3. The battery exchange vehicle of claim 2, wherein the expansion beads are arranged on the battery pack, and the lock seat is arranged on the quick-change bracket; or the lock seat is arranged on the battery pack, and the expansion beads are arranged on the quick-change bracket.

4. The battery exchange vehicle according to claim 2, wherein the expansion bead or the lock seat is provided at a middle position of the battery pack, and the expansion bead or the lock seat penetrates through the battery pack.

5. The battery exchange vehicle of claim 2, wherein the tension bead or lock base is floatingly connected to the battery pack.

6. The battery exchange vehicle of claim 2, wherein the tension bead or lock base is floatingly connected to the quick change bracket.

7. The battery exchange vehicle as claimed in claim 2, wherein the expansion bead comprises a connecting column and a plurality of locking balls, wherein the locking balls can move on the connecting column, so that the locking balls are exposed out of the outer surface of the connecting column or retract into the connecting column, and the locking balls are abutted against and locked on the lock seat or the expansion bead and the lock seat are mutually unlocked.

8. The battery powered vehicle of claim 7, wherein the expansion bead further comprises a drive assembly disposed within the interior of the connection post and coupled to the locking ball, the lock base having a locking chamber for receiving the connection post and the locking ball, the drive assembly for driving the locking ball between a locked position and an unlocked position;

9. The battery powered vehicle of claim 8, wherein the drive assembly includes a drive bolt and a drive ball disposed at an end of the drive bolt facing the locking ball, the drive ball being disposed within the connecting post and abutting the locking ball, the interior of the connecting post being provided with internal threads that mate with the drive bolt, the connecting post being provided with a locking aperture, the drive bolt being configured to control the drive ball to apply a force to the locking ball that causes the locking ball to extend at least partially out of the locking aperture by adjusting a helical length of the connecting post.

10. The battery powered vehicle of claim 1, wherein the locking mechanism further comprises an anti-rotation stop structure coupled to the tension bead and/or the lock base to prevent relative rotational movement between the tension bead and the lock base.

11. The battery exchange vehicle of claim 10, wherein the anti-rotation stop structure is configured to limit rotation of the expansion bead relative to the lock base by one of a ratchet pawl, an expansion bead, a snap fit, and a mesh.

12. The battery exchange vehicle according to any one of claims 1 to 11, wherein the number of the battery packs is at least two, and a plurality of the locking pieces are provided in an edge region of each of the battery packs to be independently locked or unlocked to a bottom of the battery exchange vehicle.

13. The battery-powered vehicle of claim 12, wherein the locking member is further disposed in a middle region of each of the battery packs.

14. The battery-powered vehicle of claim 13, wherein when there are a plurality of the locking members located in the intermediate region, the plurality of locking members are distributed along a length direction or a width direction of a body of the battery-powered vehicle;

15. The battery exchange vehicle of claim 13, wherein the locking member in the middle region is disposed through the battery pack.

16. The battery exchange vehicle according to any one of claims 1 to 11, wherein a plurality of the lock mechanisms are provided in an edge region of the battery pack accommodation region in a longitudinal direction and/or a width direction of a body of the battery exchange vehicle.

17. The battery exchange vehicle of claim 16, wherein the locking mechanism is further disposed in a middle region of the battery pack receiving area.

18. The battery powered vehicle of claim 17, wherein when there are a plurality of the locking mechanisms located in the intermediate region, the plurality of locking mechanisms are disposed in a distributed manner along a length direction or a width direction of the vehicle body.

19. The battery exchange vehicle according to any one of claims 1 to 11, wherein the locking mechanism is distributed on at least one side of the battery pack accommodating area in a length and/or width direction of the vehicle body;

20. The battery powered vehicle of claim 19, wherein at least one side of the battery pack receiving area is provided with at least two locking mechanisms along the width and/or length direction of the vehicle body, the at least two locking mechanisms being spaced apart along the length and/or width direction of the vehicle body.

21. The battery exchange vehicle according to any one of claims 1 to 11, wherein the locking member is located in a middle portion of the battery pack in a height direction of the battery pack;

alternatively, the locking member is located at the top of the battery pack.

22. The battery exchange vehicle according to any one of claims 1 to 11, wherein the battery pack is located at the bottom of the vehicle beam or the battery pack portion is higher than the lower surface of the vehicle beam in the height direction of the vehicle body.

23. A battery exchange vehicle according to any one of claims 1 to 11, wherein part of the battery pack is located on both sides of the vehicle beam and/or part of the battery pack is located between two of the vehicle beams.

24. The battery exchange vehicle according to any one of claims 1 to 11, wherein the quick-change bracket includes a plurality of sub-brackets including a first cross member and a first side member, the first cross member being disposed along a width direction of the vehicle body, the first side member being disposed along a length direction of the vehicle body, the first cross member and the first side member being connected end to end in order to form the battery pack accommodating area, a side of the first side member facing the battery pack accommodating area being provided with the locking mechanism.

25. The battery-changing vehicle according to claim 24, wherein not less than two of the sub-brackets are provided, at least two of the sub-brackets are respectively located at least partially outside the vehicle beam, the battery pack accommodating area is formed between two adjacent sub-brackets, and the locking mechanism is respectively provided outside two adjacent first longitudinal beams on two of the sub-brackets;

or the number of the sub-brackets is not less than three, part of the sub-brackets are positioned between two vehicle beams, and part of the sub-brackets are at least partially positioned on the outer sides of the corresponding vehicle beams.

26. The battery exchange vehicle of claim 24, wherein the quick-change bracket includes a mounting beam, at least a portion of the sub-bracket being connected to the vehicle beam by the mounting beam.

27. The battery exchange vehicle according to any one of claims 1 to 11, wherein the quick-change bracket includes a bracket body and a partition member connected to the bracket body, the partition member partitioning the bracket body to form at least two of the battery pack accommodation regions, the partition member being provided with the locking mechanism on at least one side in a width direction of the vehicle body.

28. The battery exchange vehicle of claim 27, wherein the bracket body includes a second cross member and a mounting beam, the mounting beam being connected to the vehicle beam, the second cross member being disposed along a width direction of the vehicle body, the second cross member being connected to both ends of the mounting beam, both ends of the partition being connected to the second cross member, respectively.

29. The battery exchange vehicle of claim 28, wherein the bracket body further comprises a second longitudinal beam disposed along a length direction of the vehicle body, the second longitudinal beam and the second cross beam being connected end to end in sequence, the second longitudinal beam being provided with the locking mechanism on a side wall of a side facing the partition.

30. A battery powered vehicle according to claim 26 or 28, wherein the mounting beam is attached to the roof, side or bottom of the vehicle beam.

31. The battery exchange vehicle according to any one of claims 1-11, wherein the quick-change bracket includes two sets of sub-brackets disposed at intervals along a width direction of the vehicle body, at least one side of the sub-brackets forming the battery pack accommodating area, the sub-brackets including a plurality of segmented beams disposed at intervals along the length direction of the vehicle body, the segmented beams being connected to the vehicle beams, at least an outer side wall of the segmented beams being provided with the locking mechanism.

32. The battery exchange vehicle of claim 31, wherein each of the segmented beams is provided with a connecting plate connected to the vehicle beam, the connecting plates being offset from the locking mechanism.

33. The battery exchange vehicle according to any one of claims 1 to 11, wherein the quick-change bracket includes two fixing beams provided at intervals in a width direction of the vehicle body, the fixing beams being connected to the vehicle beams, at least one side of the fixing beams forming the battery pack accommodating area, and at least an outer side wall of the fixing beams being provided with the locking mechanism.

34. The battery exchange vehicle of any of claims 1-11, wherein the quick-change bracket further comprises a vehicle-end connector and a mounting assembly, each of the battery pack receiving areas being provided with a mounting assembly, respectively, the mounting assembly being connected to the quick-change bracket, the vehicle-end connector being disposed on the mounting assembly.

35. The battery powered vehicle of claim 34, wherein the mounting assembly includes a mounting bar and a mounting block, the mounting bar being connected to a side wall of the mounting block and mounted on the quick-change bracket, the mounting block for mounting the vehicle end connector;

36. The battery exchange vehicle according to any one of claims 1-11, wherein a first limit mechanism is further provided on the quick-change bracket, and the first limit mechanism is configured to cooperate with a first limit portion on the top of the battery pack to position the battery pack;

and/or, the side around the battery pack accommodating area is respectively provided with a second limiting mechanism, the side wall of the battery pack is provided with a second limiting part matched with the second limiting mechanism, one of the second limiting mechanism and the second limiting part is a limiting seat, the other is a limiting bulge, the limiting seat is provided with an elastic sheet, and the limiting bulge is in butt joint with the elastic sheet.

37. The battery exchange vehicle of any of claims 1-11, wherein the quick-change bracket further comprises a protective plate that covers the top of the battery pack.

38. The battery exchange vehicle of claim 37, wherein a cushion pad is provided on a side of the protective plate facing the top of the battery pack, and/or an avoidance portion is provided on a side of the protective plate facing the top of the battery pack.

39. The battery-powered vehicle of any of claims 1-11, characterized in that the battery-powered vehicle is an electric truck.