CN116639017A

CN116639017A - Quick-change bracket and electric vehicle

Info

Publication number: CN116639017A
Application number: CN202211737753.1A
Authority: CN
Inventors: 张建平; 于新瑞; 褚佳玮
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-25

Abstract

The invention relates to the field of electric vehicle battery replacement, and provides a quick-change bracket and an electric vehicle. Through setting up holding district and the roof beam of support body at least partial coincidence in the direction of height to utilize the space of roof beam side, avoid electric vehicle's ground clearance too little, improve electric vehicle's trafficability characteristic, the battery box is installed or is taken off to the bottom that the quick change support was got into to the battery replacement equipment of being convenient for. The lower surface of the bracket body is flush with or higher than the lower surface of the vehicle beam, so that the battery box can be conveniently installed or removed from the side surface of the vehicle beam.

Description

Quick-change bracket and electric vehicle

Technical Field

The invention relates to the field of electric vehicle power conversion, in particular to a quick-change bracket and an electric vehicle.

Background

Currently, in the field of electric vehicles, a battery box is mounted on an electric vehicle through a quick-change bracket, and the battery box is mounted on the quick-change bracket. After the quick-change bracket is installed on an electric vehicle, the lower surface of the quick-change bracket is lower than the lower surface of the beam, on one hand, the quick-change bracket and the battery box can interfere with a structure below the girder, so that the installation is not facilitated; on the other hand, the below of the quick-change bracket after installation is not enough in height space from the ground, the accommodating space in the battery box is limited, the electric quantity of the battery box is small, the cruising mileage of the electric vehicle is short, and the quick-change bracket is easy to interfere with the quick-change bracket when the battery box is installed or taken down by the battery-change equipment, so that the battery box is inconvenient to install or replace.

Disclosure of Invention

The invention aims to overcome the defect that interference is easy to occur due to insufficient height space below a quick-change bracket in the prior art, and provides the quick-change bracket and an electric vehicle.

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

the utility model provides a quick change support, its is used for installing in order to fix the battery box on electric vehicle's roof beam, quick change support includes the support body, the support body connect in the roof beam and from the roof beam outwards extends, the support body is formed with holds the district, hold the district in electric vehicle's direction of height with the roof beam at least partially coincides, hold the district and be used for holding at least part the battery box, the lower surface of support body is not less than the lower surface of roof beam.

In this technical scheme, holding district and the roof beam of support body are at least partly coincide in the direction of height, on the one hand, can utilize the space of roof beam side, avoid because of arranging quick change support and lead to electric vehicle's ground clearance too little to avoid quick change support and other structure to interfere, improve electric vehicle's trafficability characteristic, quick change support below has sufficient altitude mixture room, and the battery box is installed on the quick change support or is taken off from the quick change support to the bottom that the quick change equipment of being convenient for gets into the quick change support. On the other hand, the space on the side face of the vehicle beam is utilized, occupation of the space above the vehicle beam by the quick-change support is reduced or avoided, meanwhile, the position of the battery box on the quick-change support is not too high from the ground, the battery box is installed on the quick-change support or taken down from the quick-change support from the bottom of the electric vehicle by using the battery-change equipment, the lifting path is short, the movement is stable, and the structural performance requirement on the battery-change equipment is low. The lower surface of support body and the lower surface parallel and level of roof beam or be higher than the lower surface of roof beam, support body below has sufficient altitude space apart from ground, is convenient for follow the side-mounting of roof beam or take off the battery case, and can avoid leading to producing the interference when installing or taking off the battery case with quick change support because of the bottom space is not enough.

Preferably, the upper surface of the bracket body is not higher than the upper surface of the vehicle beam.

In this technical scheme, the upper surface parallel and level of support body or be less than the upper surface of roof beam, avoid the support body to the occupation of roof beam upper portion space, be convenient for electric vehicle in the arrangement of roof beam top spare part, avoid producing to interfere.

Preferably, the electric vehicle is provided with two vehicle beams, the two vehicle beams are distributed at intervals along the width direction of the electric vehicle, the quick-change bracket comprises two bracket bodies, and the two bracket bodies are respectively connected to two sides of the two vehicle beams, which are away from each other.

In the technical scheme, the quick-change bracket is connected to the side surface of the vehicle beam, so that on one hand, the space occupied by the connection of the quick-change bracket and the vehicle beam on the upper part and the lower part of the vehicle beam can be reduced or avoided; in the two aspects, the quick-change bracket is provided with the accommodating areas on two sides of the two beams, which are away from each other, for accommodating at least part of the battery boxes, so that the space in the height direction of the beams is utilized, the accommodating quantity of battery packs in the battery boxes is increased, and the endurance mileage of the electric vehicle is improved; in three aspects, the quick-change bracket is connected to two sides of two vehicle beams, so that the space between the two vehicle beams can be reduced or avoided, the battery packs are conveniently arranged between the two vehicle beams, the battery packs are uniformly distributed between the two vehicle beams and two sides of the two vehicle beams, and the total electricity storage capacity of the battery packs in the battery box can be increased to improve the cruising duration of the electric vehicle.

Preferably, at least two groups of locking mechanisms are arranged on each bracket body at intervals along the width direction of the electric vehicle, each group of locking mechanism is arranged along the length direction of the electric vehicle, and the locking mechanism is used for being matched with a locking piece on the battery box so as to lock or unlock the battery box and the quick-change bracket.

In the technical scheme, two bracket bodies are respectively connected to two sides of two vehicle beams, which are away from each other, one bracket body corresponds to at least two groups of locking mechanisms, so that a battery box structure in a containing area on the same side as the bracket body corresponds to at least two groups of locking mechanisms, and the locking mechanisms can reliably lock and support the battery box; further, the multiple groups of locking mechanisms on the same side are arranged at intervals along the width direction of the electric vehicle, so that the multiple groups of locking mechanisms are spaced apart from each other for locking and supporting the battery box, and the reliability of locking and the loaded balance are further improved. Each group of locking mechanism is arranged along the length direction of the electric vehicle, so that the load of the battery box is uniformly transferred to the quick-change bracket along the length direction of the electric vehicle, and the stress of the battery box is balanced.

Preferably, the bracket body includes a plurality of stringers extending in a longitudinal direction of the electric vehicle and arranged at intervals in a width direction of the electric vehicle, and the locking mechanism is mounted on the stringers.

In this technical scheme, locking mechanism installs on the longeron, realizes the arrangement of locking mechanism in electric vehicle length direction.

Preferably, the quick-change bracket further comprises an electric connector and a mounting seat for mounting the electric connector;

the mounting seats are connected to the two bracket bodies;

or, the electric vehicle further comprises a connecting beam connected to the two vehicle beams, and the mounting seat is connected to the connecting beam.

In this technical scheme, the mount pad is connected in two support bodies, can strengthen the holistic rigidity of quick change support. The connecting beam is connected between the two vehicle beams, the mounting seat is connected to the connecting beam, the occupation of the mounting seat and the electric connector to the space of the bracket body can be reduced, the load of the mounting seat and the electric connector can be directly transferred to the vehicle beams, and the stress of the bracket body is reduced.

Preferably, the quick-change bracket further comprises a liquid cooling assembly, wherein the liquid cooling assembly is mounted on the mounting seat, and the liquid cooling assembly is located below the electric connector.

In the technical scheme, the liquid cooling component is positioned below the electric connector, so that the coincidence of the center of the electric connection part on the battery box and the central axis of the battery box is ensured, the generation of an included angle between the electric connection part of the battery box and the electric connector of the vehicle end is prevented, the reliability of connection among the electric connection part of the battery box, the electric connector of the vehicle end, the liquid cooling connection part of the battery box and the liquid cooling component of the vehicle end is improved, and the arcing phenomenon is avoided; and the liquid cooling assembly and the electric connector are aligned in the longitudinal direction, so that the stress on the two sides of the quick-change bracket along the width direction of the vehicle body is balanced. In addition, the liquid flowing out of the liquid cooling connector can be prevented from flowing into the vehicle-end electric connector, so that the vehicle-end electric connector is short-circuited.

Preferably, the quick-change bracket further comprises a connecting piece extending along the width direction of the electric vehicle, two ends of the connecting piece are respectively connected with the two bracket bodies, and the connecting piece and the electric connector are respectively positioned at two ends of the quick-change bracket along the length direction of the electric vehicle.

In this technical scheme, the connecting piece extends along the width direction of automobile body, and the connecting piece links together two support bodies, can improve the holistic rigidity of quick change support. Along electric vehicle's length direction, connecting piece and electric connector are located respectively the both ends of quick change support, the scattered arrangement of connecting piece and electric connector of being convenient for improves the flexibility that connecting piece and electric connector arranged, avoids connecting piece and electric connector to produce and interfere.

Preferably, in the width direction of the electric vehicle, a portion of the connecting member located between the two vehicle beams is concave downward.

In this technical scheme, the connecting piece is the concave shape that is located the part between two roof beams, avoids the spare part between connecting piece and the two roof beams to produce and interferes, if avoid connecting piece and transmission shaft to interfere.

Preferably, the quick-change bracket further comprises a plurality of second cross beams connected with the two bracket bodies, the second cross beams are arranged at intervals along the length direction of the electric vehicle and extend along the width direction of the electric vehicle, the second cross beams and the bracket bodies surround to form a frame structure, and the accommodating area is formed in the frame structure.

In the technical scheme, the second cross beam extending along the width direction of the electric vehicle is connected with the two bracket bodies, so that the integral rigidity of the quick-change bracket can be improved; the number of the second cross beams is multiple, so that the rigidity of the whole quick-change bracket can be further improved; the second crossbeams are arranged at intervals along the length direction of the electric vehicle, so that the loaded uniformity of the quick-change bracket can be improved. The bracket body and the second cross beam are surrounded to form a frame structure, so that on one hand, the structure is simple and light, and the rigidity is good; on the other hand, hold the district and form in frame construction, the second crossbeam can play the guard action to holding the battery box in the district, avoids other structures direct striking battery box, and the second crossbeam is many, and many second crossbeams interval arrangement, homoenergetic makes the protection effect to the battery box better.

Preferably, the second cross beams are located below the vehicle beam, the number of the second cross beams is two, and each second cross beam is connected with two ends of each bracket body along the width direction of the electric vehicle;

or, the second cross beams are located above the vehicle beams, and each second cross beam is connected with one end, away from the vehicle beams, of each bracket body in the width direction of the electric vehicle.

In this technical scheme, the second crossbeam all links to each other with the support body along width direction's both ends for the connection of second crossbeam and support body is reliable, still makes the holistic rigidity of quick change support improve. The second crossbeam is arranged above the vehicle beam, and the second crossbeam is connected with one end of the support body, which is far away from the vehicle beam, along the width direction of the electric vehicle, and the second crossbeam can be contacted with the top of the vehicle beam to form a support in the overlapping area of the vehicle beam along the width direction of the electric vehicle, so that the structure is simple and reliable. The second cross beam is arranged above or below the vehicle beam, so that the arrangement of the second cross beam occupying the space of the side surface of the vehicle beam can be avoided, and the battery box and the vehicle beam can be fully overlapped or partially overlapped in the height direction, so that the height space of the side surface of the vehicle beam is fully utilized.

Preferably, the quick-change bracket further comprises an electric connector mounted on the second cross beam, and the electric connector is positioned between the two bracket bodies.

In this technical scheme, the electric connector is installed between two support bodies, avoids the electric connector to occupy the space of holding the district in the support body, also makes quick change support compact structure simultaneously. The electric connector is installed on the second cross beam, is simple and reliable, and is convenient to install the electric connector on the quick-change bracket, and then the quick-change bracket is installed on the vehicle beam, so that the assembly process is convenient to concentrate.

Preferably, the second cross beams are located above the vehicle beam, the bracket body comprises mounting beams, the mounting beams are fixedly connected with the second cross beams, and the mounting beams are fixed on the vehicle beam through mounting pieces.

In this technical scheme, support body and second crossbeam form fixed connection through the installation roof beam of support body, connect simple reliable. The mounting beam is fixed on the vehicle beam through the mounting piece, so that the fixed connection of the quick-change bracket and the vehicle beam is realized, the connection is simple, reliable and convenient, and the requirements on the structure and the relative position of the quick-change bracket and the vehicle beam are reduced through the connection of the mounting piece.

Preferably, the first surface of the mounting member is fixed on one side of the vehicle beam, which is close to the bracket body, and the second surface of the mounting member extends along the width direction of the electric vehicle and away from the vehicle beam and is fixedly connected with the bottom surface of the mounting beam.

In this technical scheme, this kind of arrangement of mounting can increase the area of contact of mounting and installation roof beam, mounting and car roof beam to make the connection of installation roof beam and car roof beam reliable. Through the mounting, the conversion of the connection direction of the mounting beam and the vehicle beam is realized, so that the structure is compact, and meanwhile, the arrangement of parts is flexible. The first surface of the mounting piece is fixedly connected with the side surface of the vehicle beam, so that accumulated errors in the width direction of the electric vehicle can be eliminated conveniently; the second surface of the mounting piece is fixedly connected with the bottom surface of the mounting beam, so that accumulated errors in the height direction of the electric vehicle can be eliminated conveniently; the accumulated error is reduced through the mounting piece, so that the accuracy requirement of the relative positions of the mounting beam and the vehicle beam is reduced, and the mounting is convenient.

Preferably, the mounting beam and/or the mounting member is L-shaped.

In the technical scheme, the mounting beam and/or the mounting piece are L-shaped, on one hand, the L-shaped structure is simple, and the conversion of the connection direction is convenient to realize; on the other hand, the L-shaped structure is provided with an opening, so that dirt can be cleaned conveniently.

Preferably, the second cross beam is located below the vehicle beam, the longitudinal beam of the bracket body, which is close to the vehicle beam, is fixedly connected to the vehicle beam, and a buffer member is arranged between the longitudinal beam and the vehicle beam, which are fixedly connected with the vehicle beam.

In the technical scheme, the longitudinal beam of the bracket body, which is close to the vehicle beam, is fixedly connected to the vehicle beam, so that the connection between the vehicle beam and the bracket body is simple and reliable, and a buffer piece is arranged between the longitudinal beam and the vehicle beam, and on one hand, the impact can be relieved; on the other hand, the gap between the vehicle beam and the longitudinal beam can be filled by the buffer piece so as to compensate the error of the vehicle beam and the longitudinal beam along the width direction of the electric vehicle, and the precision requirement on the quick-change bracket and the vehicle beam is reduced.

Preferably, the quick-change bracket is provided with at least three groups of locking mechanisms along the width direction of the electric vehicle, each group of locking mechanisms is arranged along the length direction of the electric vehicle, and the locking mechanisms are used for being matched with locking pieces on the battery box so as to lock or unlock the battery box and the quick-change bracket.

In the technical scheme, at least three groups of locking mechanisms are arranged on the quick-change bracket, so that the reliability of locking and supporting the battery box is improved. Each group of locking mechanism is arranged along the length direction of the electric vehicle, so that the load of the battery box is uniformly transferred to the quick-change bracket along the length direction of the electric vehicle, and the stress of the battery box is balanced.

Preferably, at least two sets of the lock mechanisms are provided on the same side of the vehicle beam in the width direction of the electric vehicle.

In this technical scheme, at least two sets of locking mechanism that set up in the same side of roof beam can all cooperate with the portion that the battery box is located the holding district of same side, makes the battery box structure that is located the holding district of same side correspond multiunit locking mechanism, on the one hand can make the locking of battery box reliable, on the other hand can make battery box and quick change support load balanced.

Preferably, at least one set of the locking mechanism is provided near the vehicle body in the width direction of the electric vehicle.

In this technical scheme, the part atress that quick change support is close to the roof beam is bigger, and at least a set of locking mechanism is close to the roof beam setting, forms the support to the part that quick change support is close to the roof beam, can improve the stability that the battery box is connected.

Preferably, at least one set of the locking mechanism is located at a position of the quick-change bracket away from an edge of the vehicle beam or a position of the locking mechanism close to an edge of the quick-change bracket in a width direction of the electric vehicle.

In this technical scheme, locking mechanism arranges in quick change support along electric vehicle width direction's marginal position, on the one hand, can avoid arranging this locking mechanism and occupy the space that the quick change support held the district and make the space of installing the battery case diminish, is convenient for set up the size of battery case along electric vehicle width direction great to hold the battery package of bigger size and/or more quantity, make the battery case electric power storage volume grow, improve electric vehicle's continuation of journey. In two aspects, the locking mechanism is convenient to assemble on the quick-change bracket, and the stability of connection of the battery box can be improved. In the three aspects, the locking mechanism and the locking piece of the battery box are convenient to lock or unlock, and the unlocking and locking operations and other parts are prevented from interfering.

Along electric vehicle width direction, locking mechanism arranges in the position that is close to the edge of quick change support for on the one hand, the locking or the unblock cooperation of locking piece and locking mechanism is more reliable, improves the reliability that the battery box is connected. On the other hand, the space for arranging the locking mechanism to occupy the edge position of the quick-change bracket is avoided, and other structures are conveniently arranged at the edge of the quick-change bracket.

Preferably, each group of locking mechanisms comprises a plurality of lock bases, and the number of the lock bases corresponding to the locking mechanisms close to the vehicle beam is larger than the number of the lock bases corresponding to the locking mechanisms far away from the vehicle beam along the width direction of the electric vehicle.

In this technical scheme, locking mechanism is some be close to the roof beam and arranges, and the roof beam setting of keeping away from is some, and the battery box structure that is convenient for be located a roof beam homonymy corresponds multiunit locking mechanism, and multiunit locking mechanism interval arrangement for locking mechanism is reliable with supporting the locking of battery box, makes battery box and quick change support loaded balanced. The part of the quick-change bracket, which is close to the vehicle beam, is stressed more, and the number of lock bases corresponding to the locking mechanisms, which are close to the vehicle beam, is more, on one hand, the load of the battery box is more conveniently transferred to the quick-change bracket through the locking mechanisms, which are close to the vehicle beam, and then transferred to the vehicle beam, so that the load of the quick-change bracket, which is far away from the vehicle beam, is reduced, and the support of the vehicle beam to the quick-change bracket is reliable and stable; on the other hand, the number of lock bases corresponding to the locking mechanism close to the vehicle beam is larger, and the load of a single lock base close to the locking mechanism of the vehicle beam is reduced.

Preferably, the at least two sets of locking mechanisms comprise a lock connecting rod and a lock tongue, and the lock connecting rod is movably connected with the lock base through the lock tongue.

In the technical scheme, the lock connecting rod and the lock tongue are arranged to realize unlocking or locking, so that the unlocking or locking is simple, reliable and convenient to realize, one lock connecting rod is convenient to control the linkage of a plurality of lock tongues, and the simultaneous locking or unlocking of multiple points is realized, so that the operation is simple.

Preferably, the locking mechanism close to the vehicle beam comprises a primary locking mechanism, the primary locking mechanism comprises three lock bases, and the lock connecting rod is movably connected with the three lock bases through the lock tongue;

and/or, the locking mechanism far away from the vehicle beam comprises a secondary locking mechanism, the secondary locking mechanism comprises two lock bases, and the lock connecting rod is movably connected with the two lock bases through the lock tongue.

In this technical scheme, one-level locking mechanism includes three lock base, and second grade locking mechanism includes two lock bases, and a plurality of lock bases and a plurality of locking piece cooperation on the battery box in the locking mechanism of a set of being convenient for realize the multiple spot locking of battery box for locking mechanism is reliable to the locking of battery box, forms the multiple spot to the battery box at locking state simultaneously and supports, makes battery box and quick change support loaded balanced. The part atress that quick change support is close to the roof beam is bigger, and the locking mechanism that is close to the roof beam is including having three lock base's one-level locking mechanism, and the battery box structure outside the roof beam and the locking of the battery box structure between two roof beams are used for simultaneously to one-level locking mechanism of being convenient for the locking is reliable. The locking mechanism far away from the car beam comprises a secondary locking mechanism, so that support is provided for the battery box, and the stability of connection of the battery box is improved.

An electric vehicle comprising a quick-change bracket as in any preceding claim.

The invention has the positive progress effects that:

the accommodating area of the bracket body is at least partially overlapped with the vehicle beam in the height direction, so that the space on the side surface of the vehicle beam is utilized, the situation that the ground clearance of the electric vehicle is too small due to arrangement of the quick-change bracket is avoided, the quick-change bracket or a battery box on the quick-change bracket is prevented from interfering with other structures, and the trafficability of the electric vehicle is improved; and make quick change support below have sufficient altitude space, be convenient for change the bottom that electrical equipment got into the quick change support and install the battery box on the quick change support or take off from the quick change support. Through the space that utilizes the roof beam side for the position of battery box on quick change support can not be too high apart from ground, use the battery box to install the process lifting path short on quick change support or take off from quick change support from electric vehicle's bottom, steady motion, it is low to the requirement of battery box structural performance. Through setting up the lower surface parallel and level of support body and the lower surface of roof beam or be higher than the lower surface of roof beam, there is sufficient altitude space support body below apart from ground, be convenient for follow the side-mounting of roof beam or take off the battery case, and can avoid leading to producing the interference with quick change support when installing or taking off the battery case because of the bottom space is not enough.

Drawings

Fig. 1 is a partial schematic structural view of an electric vehicle of embodiment 1 of the invention;

fig. 2 is a partial schematic structural view of an electric vehicle of embodiment 1 of the invention;

FIG. 3 is a schematic view of the connection of the quick-change bracket and the beam according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a bracket body and a locking mechanism according to embodiment 1 of the present invention;

fig. 5 is a schematic cross-sectional view of the bracket body and the locking mechanism according to embodiment 1 of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a schematic structural diagram of a secondary locking mechanism in embodiment 1 of the present invention;

FIG. 8 is an enlarged view of portion B of FIG. 5;

fig. 9 is a schematic structural view of a primary locking mechanism in embodiment 1 of the present invention;

fig. 10 is a partial schematic structural view of an electric vehicle of embodiment 2 of the invention;

fig. 11 is a partial schematic structural view of an electric vehicle of embodiment 2 of the invention;

fig. 12 is a schematic structural view of the connection between the vehicle beam and the quick-change bracket according to embodiment 2 of the present invention;

fig. 13 is a schematic structural view of a quick-change bracket according to embodiment 2 of the present invention;

fig. 14 is a schematic structural view of a bracket body according to embodiment 2 of the present invention;

fig. 15 is a schematic structural view of a bracket body and a locking mechanism according to embodiment 2 of the present invention;

FIG. 16 is a schematic view showing the connection structure of the vehicle beam, the mounting beam and the mounting member according to embodiment 2 of the present invention;

Fig. 17 is a schematic structural view of a quick-change bracket 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.

Reference numerals illustrate:

quick-change bracket 1, bracket body 11, side member 111, mounting beam 112, panel 113, first cross member 114, column 115, accommodation area 12, second cross member 13, connector 14, mounting member 15, first face 151, second face 152, mounting base 16, electrical connector 17, liquid cooling module 18, mounting plate 19, locking mechanism 2, primary locking mechanism 21, secondary locking mechanism 22, lock base 23, lock link 24, lock tongue 25, battery case 3, battery pack 31, vehicle beam 4, connecting beam 5, and buffer 6

Length direction L, width direction W, and height direction H

Detailed Description

The longitudinal direction L, the width direction W, and the height direction H in the present invention are the same as the longitudinal direction, the width direction, and the height direction of the electric vehicle, respectively. The connection in the present invention may be a direct connection or an indirect connection unless otherwise specified. The fixed connection in the invention can be connected by a fastener such as a bolt, or can be welded, interference fit connection or other fixed connection modes.

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

Example 1

Fig. 1 to 9 are schematic structural views of embodiment 1.

The present embodiment provides an electric vehicle that is a heavy truck of a battery-powered type. In other embodiments, the electric vehicle may also be a battery-powered light truck. As shown in fig. 1 to 4, the electric vehicle includes the quick-change bracket 1, the bracket body 11 is attached to the vehicle beam 4 and extends outward from the vehicle beam 4, the bracket body 11 is formed with a receiving area 12, the receiving area 12 is fully overlapped with the vehicle beam 4 in the height direction H of the electric vehicle, the receiving area 12 is used for receiving a part of the battery box 3, and the lower surface of the bracket body 11 is higher than the lower surface of the vehicle beam 4.

Through setting up holding district 12 and the roof beam 4 of support body 11 and overlap completely in direction of height H, on the one hand, can utilize the space of roof beam 4 side, avoid because of arranging quick change support 1 and lead to electric vehicle's ground clearance too little to avoid quick change support 1 to interfere with other structures, improve electric vehicle's trafficability characteristic, quick change support 1 below has sufficient altitude space, and the battery case 3 is installed on quick change support 1 or is taken off from quick change support 1 to the bottom that the quick change equipment of being convenient for get into quick change support 1. On the other hand, the space on the side surface of the vehicle beam 4 is utilized, the occupation of the space above the vehicle beam 4 by the quick-change bracket 1 is reduced or avoided, meanwhile, the position of the battery box 3 on the quick-change bracket 1 is not too high from the ground, the battery box 3 is installed on the quick-change bracket 1 or taken down from the quick-change bracket 1 from the bottom of the electric vehicle by using the battery-change equipment, the lifting path is short, the movement is stable, and the requirement on the structural performance of the battery-change equipment is low. The lower surface of support body 11 is higher than the lower surface of roof beam 4, and support body 11 below has sufficient altitude space apart from ground, is convenient for follow the side-mounting of roof beam 4 or take off battery box 3, and can avoid leading to producing the interference when installing or taking off battery box 3 with quick change support 1 because of the bottom space is not enough.

In other embodiments, in the height direction H of the electric vehicle, the accommodating area 12 may also be partially overlapped with the beam 4, so as to be convenient for adapting to the battery boxes 3 or the electric vehicles with different specifications, or to be convenient for flexibly arranging the parts. In other embodiments, the lower surface of the bracket body 11 may be flush with the lower surface of the vehicle beam 4, so as to improve the utilization rate of the side space of the vehicle beam 4. In other embodiments, the battery box 3 may be completely accommodated in the accommodating area 12 of the bracket body 11, so that the electric vehicle is compact.

As shown in fig. 1-3, the upper surface of the bracket body 11 is lower than the upper surface of the vehicle beam 4, so that the bracket body 11 is prevented from occupying the upper space of the vehicle beam 4, and the arrangement of parts above the vehicle beam 4 of the electric vehicle is facilitated. In other embodiments, the upper surface of the bracket body 11 may be flush with the upper surface of the vehicle beam 4, so as to improve the utilization rate of the side space of the vehicle beam 4; the upper surface of the bracket body 11 can be higher than the upper surface of the vehicle beam 4, so that the heights of the quick-change bracket 1 and the battery box 3 are raised as much as possible, the ground clearance of the quick-change bracket 1 or the battery box 3 is prevented from being too small and other structural interference, and the battery box 3 is also convenient for the battery replacement equipment to enter the bottom of the vehicle for replacement.

As shown in fig. 1 to 4, the number of the two vehicle beams 4 of the electric vehicle is two, the two vehicle beams 4 are arranged at intervals along the width direction W and extend along the length direction L, the quick-change bracket 1 comprises two bracket bodies 11, and the two bracket bodies 11 are respectively connected to two sides, away from each other, of the two vehicle beams 4 of the electric vehicle.

The quick-change bracket 1 is connected to the side surface of the vehicle beam 4, so that on one hand, the space occupied above and below the vehicle beam 4 by the connection of the quick-change bracket 1 and the vehicle beam 4 can be reduced or avoided. In two aspects, the quick-change bracket 1 is provided with a bracket body 11 respectively on two sides of the two vehicle beams 4 deviating from each other, and each bracket body 11 is internally provided with a containing area 12 and contains part of the battery box 3, so that the space on the height direction H on the two sides of the vehicle beams 4 deviating from each other is utilized, the containing quantity of battery packs 31 in the battery box 3 is increased, and the cruising mileage of the electric vehicle is improved. In other embodiments, the quick-change bracket 1 may be connected above or below the vehicle beam 4, so long as the accommodating area 12 at least partially coincides with the vehicle beam 4 in the height direction H of the electric vehicle, and the lower surface of the bracket body 11 is not lower than the lower surface of the vehicle beam 4, so as to avoid too small ground clearance of the electric vehicle caused by the arrangement of the battery box 3 and the quick-change bracket 1.

In three aspects, the quick-change bracket 1 is connected to two sides of the two vehicle beams 4, which are away from each other, so that the space between the two vehicle beams 4 can be reduced or avoided, which is occupied by the connection of the quick-change bracket 1 and the vehicle beams 4, and the battery pack 31 is conveniently arranged between the two vehicle beams 4. As shown in fig. 1 and 2, in the present embodiment, the upper layer of the battery box 3 includes three battery packs 31 in total, and one battery pack 31 is disposed between the two vehicle beams 4 on both sides where the two vehicle beams 4 face away from each other. The battery pack 31 is also arranged between the two vehicle beams 4, so that the total electric storage capacity of the battery pack 31 in the battery box 3 can be increased, and the cruising time of the electric vehicle can be improved. In other embodiments, the battery pack 31 may not be provided between the two vehicle beams 4.

As shown in fig. 2 and 3, the electric vehicle further includes a connection beam 5, and the connection beam 5 is disposed between the two vehicle beams 4. As shown in fig. 2, the quick-change bracket 1 further comprises an electric connector 17, a liquid cooling component 18 and a mounting seat 16 for mounting the electric connector 17 and the liquid cooling component 18, wherein the mounting seat 16 is fixed on the connecting beam 5, so that the occupation of the space of the bracket body 11 by the mounting seat 16 and the electric connector 17 can be reduced, the load of the mounting seat 16 and the electric connector 17 can be directly transferred to the vehicle beam 4, and the stress of the bracket body 11 can be reduced. In this embodiment, the liquid cooling assembly 18 and the electrical connector 17 are both mounted on the mounting base 16, so that the quick-change bracket 1 is compact. The liquid cooling component 18 is positioned below the electric connector 17, so that the center of the electric connection part on the battery box 3 is ensured to coincide with the central axis of the battery box 3, an included angle is prevented from being generated between the electric connection part of the battery box 3 and the electric connector 17, the reliability of connection between the electric connection part of the battery box 3 and the electric connector 17 as well as between the liquid cooling connection part of the battery box 3 and the liquid cooling component 18 is improved, and arcing is avoided; and the liquid cooling assembly 18 and the electric connector 17 are aligned in the longitudinal direction in a centered manner, so that the two sides of the quick-change bracket 1 along the width direction W of the vehicle body are stressed uniformly. In addition, the liquid flowing out of the liquid-cooled connector can be prevented from flowing into the electric connector 17, resulting in a short circuit of the electric connector 17. In other embodiments, the liquid cooling assembly 18 and the electrical connector 17 may also be mounted to the quick-change bracket 1 by a mounting base 16, the mounting base 16 connecting the two bracket bodies 11. In other embodiments, the liquid cooling assembly 18 and the electrical connector 17 may be secured directly without the mounting block 16. In other embodiments, the electrical connector 17 and the liquid cooling assembly 18 may be horizontally aligned.

As shown in fig. 3 and 4, at least three groups of locking mechanisms 2 are arranged at intervals along the width direction W of the quick-change bracket 1, each group of locking mechanisms 2 is arranged along the length direction L of the electric vehicle, a locking piece (not shown in the figure) is arranged on the battery box 3, the locking mechanism 2 is matched with the locking piece on the battery box 3 so as to realize locking or unlocking of the battery box 3 and the quick-change bracket 1, and the locking piece moves in the locking mechanism 2 along the length direction L of the electric vehicle so as to realize locking or unlocking of the battery box 3 on the quick-change bracket 1.

In the present embodiment, at least three sets of locking mechanisms 2 are provided on the quick-change bracket 1 for locking the battery box 3. The locking mechanism 2 is at least three groups, and one battery box 3 can correspond to a plurality of groups of locking mechanisms 2, so that the reliability of locking and supporting the battery box 3 is improved. Each group of locking mechanism 2 is arranged along the length direction L of the electric vehicle, so that the load of the battery box 3 is uniformly transferred to the quick-change bracket 1 along the length direction L of the electric vehicle, and the stress of the battery box 3 is balanced. Simultaneously, the electric vehicle can be locked and unlocked by moving in the length direction L of the electric vehicle, so that the battery box 3 of the electric vehicle is replaced, and the electric vehicle is convenient and quick to operate.

As shown in fig. 3 and 4, in the present embodiment, four sets of locking mechanisms 2 are provided at intervals in the width direction W to the quick-change bracket 1, and the four sets of locking mechanisms 2 are used for locking or unlocking the battery box 3. Two groups of locking mechanisms 2 are respectively arranged on two sides of the two vehicle beams 4, which are away from each other. There are two sets of locking mechanisms 2 disposed adjacent to two vehicle beams 4, one vehicle beam 4 corresponding to a set of locking mechanisms 2 disposed adjacent thereto.

In this embodiment, along the width direction W, the number of locking mechanisms 2 on the same side as the vehicle beam 4 is two, the structure of the battery box 3 on the same side as the vehicle beam 4 corresponds to the two sets of locking mechanisms 2, the locking of the battery box 3 is reliable, and the two sets of locking mechanisms 2 support the structure of the battery box 3 on the same side as the vehicle beam 4 after locking, so that the battery box 3 and the quick-change bracket 1 are balanced in load. In other embodiments, the number of the locking mechanisms 2 on the same side as the vehicle beam 4 may be zero, one, or a plurality of groups in the width direction W, and the locking mechanism 2 may be disposed between two vehicle beams 4 when the locking mechanisms 2 are not disposed on the same side as the vehicle beam 4.

Specifically, as shown in fig. 3 and 4, along the width direction W, two sets of locking mechanisms 2 on the same side as the vehicle beam 4 are both arranged on the bracket body 11 and are arranged at intervals, so that the structure of the battery box 3 in the accommodating area 12 on the same side as the bracket body 11 corresponds to the two sets of locking mechanisms 2, and the locking and supporting of the battery box 3 by the locking mechanisms 2 are reliable; further, the two sets of locking mechanisms 2 on the same side are arranged at intervals along the width direction W, so that the locking and supporting of the battery box 3 by the plurality of sets of locking mechanisms 2 are spaced, and the locking reliability and the loaded balance are further improved. In other embodiments, a set of locking mechanisms 2 may be provided on one bracket body 11, multiple sets of locking mechanisms 2 may be provided, or locking mechanisms 2 may be provided on other structures outside the bracket body 11.

The bracket body 11 includes a plurality of longitudinal beams 111 and a plurality of first cross beams 114, the plurality of longitudinal beams 111 extend in the length direction L and are arranged at intervals in the width direction W, the plurality of cross beams extend in the width direction W and are arranged at intervals in the length direction L, and the plurality of longitudinal beams 111 and the plurality of first cross beams 114 surround to form a frame structure in which the accommodation area 12 for accommodating the battery box 3 is formed. The bracket body 11 has a frame structure, simple and light structure and good rigidity. The accommodating area 12 is formed in the frame structure, and the longitudinal beams 111 and the first cross beams 114 can protect the structure of the battery box 3 in the accommodating area 12 and prevent other structures from directly striking the battery box 3. The first cross beams 114 and the longitudinal beams 111 are multiple and are arranged at intervals, so that the protection effect on the battery box 3 is better, and meanwhile, the overall rigidity of the bracket body 11 can be improved.

In the present embodiment, the side member 111 extends in the longitudinal direction L, and the lock mechanism 2 is mounted on the side member 111, so that arrangement of the lock mechanism 2 in the electric vehicle longitudinal direction L is facilitated. Each group of locking mechanism 2 is arranged along the length direction L, so that the load of the battery box 3 is uniformly transmitted to the quick-change bracket 1 along the length direction L, and the electric vehicle is balanced in stress. In other embodiments, the locking mechanism 2 may be mounted on other structures of the quick-change bracket 1.

As shown in fig. 3 and 4, in this embodiment, two car beams 4 are respectively provided with a locking mechanism 2 which is close to the car beams, the locking mechanisms 2 which are close to the car beams 4 are respectively used for forming two-side locking or unlocking with the battery box 3, the part of the quick-change bracket 1 which is close to the car beams 4 is stressed more greatly, the locking mechanism 2 is close to the car beams 4, the part of the quick-change bracket 1 which is close to the car beams 4 is supported, the stability of connection of the battery box 3 can be improved, the locking of the battery box 3 is reliable, and the two groups of locking mechanisms 2 are used for forming support for the structure of the battery box 3 between the two car beams 4 after the locking, so that the load of the battery box 3 and the quick-change bracket 1 is balanced. In other embodiments, the number of the locking mechanisms 2 arranged near the vehicle beam 4 can be zero, one or three, and when the number of the locking mechanisms is zero, the locking mechanisms 2 can be arranged at the edge position of the quick-change bracket 1 far from the vehicle beam 4; when there is one group, a group of locking mechanisms 2 may be provided only in the vicinity of one vehicle beam 4; when three groups are adopted, a group of locking mechanisms 2 can be respectively arranged at two sides of the two vehicle beams 4 which are away from each other and in the middle of the two vehicle beams 4.

As shown in fig. 3 and 4, in this embodiment, two sets of locking mechanisms 2 are located at edge positions of the quick-change bracket 1 away from the vehicle beam 4 along the width direction W, so that the two sets of locking mechanisms 2 can be prevented from occupying the space of the accommodating area 12 of the quick-change bracket 1, thereby avoiding the space for installing the battery box 3 from being reduced, facilitating the setting of the size of the battery box 3 along the width direction W to be larger, enabling the electric power storage capacity of the battery box 3 to be increased, and improving the cruising duration of the electric vehicle. In addition, the locking mechanism 2 is conveniently assembled on the quick-change bracket 1 by workers, the locking or unlocking operation of the locking mechanism 2 and the locking piece of the battery box 3 is conveniently carried out, and the unlocking and locking operation and other parts are prevented from interfering.

In other embodiments, the locking mechanism 2 may be disposed at a position close to the edge of the quick-change bracket 1, so that on one hand, the locking or unlocking cooperation between the locking member and the locking mechanism 2 is more reliable, and the connection reliability of the battery box 3 is improved. On the other hand, the arrangement of the locking mechanism 2 is avoided from occupying the space of the edge position of the quick-change bracket 1, so that other structures, such as pipelines or lines, are conveniently arranged at the edge of the quick-change bracket 1. In other embodiments, the locking mechanism 2 may not be disposed at the edge position of the quick-change bracket 1 away from the vehicle beam 4 or near the edge position along the width direction W, and the locking mechanism 2 may be disposed at a position between the edge of the quick-change bracket 1 and the vehicle beam 4 or near the vehicle beam 4.

As shown in fig. 4, each set of locking mechanism 2 includes a plurality of lock bases 23, and lock bases 23 are used for realizing locking or unlocking with the locking piece cooperation of battery box 3, and a plurality of lock bases 23 are convenient for a set of locking mechanism 2 to form the multiple spot locking to battery box 3, make the locking reliable, and battery box 3 and quick change support 1 atress are balanced. In other embodiments, a set of locking mechanisms 2 may correspond to one lock base 23 or a plurality of lock bases 23.

In the width direction W of the electric vehicle, the number of lock bases 23 in the lock mechanism 2 near the vehicle beam 4 is larger than the number of lock bases 23 in the lock mechanism 2 far from the vehicle beam 4. In the present embodiment, as shown in fig. 4, in the width direction W of the electric vehicle, the number of lock bases 23 corresponding to each group of lock mechanisms 2 close to the vehicle beam 4 is six, and the number of lock bases 23 corresponding to each group of lock mechanisms 2 far from the vehicle beam 4 is four. The part of the quick-change bracket 1 close to the vehicle beam 4 is stressed more, and the number of the corresponding lock bases 23 of the locking mechanism 2 close to the vehicle beam 4 is more, so that the loading of a single lock base 23 of the locking mechanism 2 close to the vehicle beam 4 can be reduced, and the locking is reliable. The number of lock bases 23 corresponding to the lock mechanism 2 near the vehicle beam 4 and far from the vehicle beam 4 may be set as required, and is not limited to the number in the present embodiment. In other embodiments, the number of lock bases 23 corresponding to the locking mechanism 2 near the vehicle beam 4 and far from the vehicle beam 4 may be the same.

The at least two sets of locking mechanisms 2 further comprise a lock tongue 25 and a lock connecting rod 24, the lock connecting rod 24 is movably connected with the lock base 23 through the lock tongue 25, the lock connecting rod 24 is used for controlling the lock tongue 25 to move relative to the lock base 23, the lock tongue 25 and the lock base 23 are matched to define an opening or open the opening, so that a locking piece of the battery box 3 enters a locking groove from the opening to realize locking, or the locking groove is moved out of the opening to realize unlocking. The lock connecting rod 24 and the lock tongue 25 are arranged to realize unlocking or locking, so that the unlocking or locking is simple, reliable and convenient to realize, one lock connecting rod 24 is convenient to control the plurality of lock tongues 25 to be linked, and the simultaneous locking or unlocking of multiple points is realized, so that the operation is simple. In other embodiments, the locking or unlocking can be achieved by directly matching the locking base 23 and the locking piece of the battery box 3, or any other locking structure capable of locking the battery box 3 and the quick-change bracket 1 can be adopted.

As shown in fig. 5 to 9, the lock mechanism 2 includes a primary lock mechanism 2 and a secondary lock mechanism 2. The primary locking mechanism 2 comprises three lock bases 23, three lock bolts 25 and a lock connecting rod 24, the lock connecting rod 24 is movably connected with the three lock bases 23 through the lock bolts 25, when the locking piece of the primary locking mechanism 2 and the battery box 3 are in locking or unlocking fit, the primary locking mechanism 2 is switched between the locking state and the unlocking state through the movement of the lock bolts 25 in the lock bases 23, the locking piece of the battery box 3 and the locking piece of the lock bases 23 are in clamping connection when the locking piece and the locking piece of the battery box 3 are in the locking state, the locking piece cannot shake relative to the lock bases 23, so that the battery box 3 and the quick-change bracket 1 are firmly connected, and the shaking of the quick-change bracket 1 is avoided. The secondary locking mechanism 2 comprises two lock bases 23, two lock bolts 25 and a lock connecting rod 24, the lock connecting rod 24 is movably connected with the two lock bases 23 through the lock bolts 25, when the locking piece of the secondary locking mechanism 2 and the battery box 3 are in locking or unlocking fit, the secondary locking mechanism 2 is switched between a locking state and an unlocking state through the movement of the lock bolts 25 in the lock bases 23, the locking piece of the battery box 3 and the lock base 23 are in a gap but not contacted with the locking piece when in the locking state, the locking piece of the battery box 3 cannot be damaged by the lock bolts 25 in the using process, the lock bolts 25 cannot be impacted and rubbed, the locking piece of the battery box 3 is prevented from being in butt joint with the plurality of groups of locking mechanisms 2, the over-positioning is avoided, the over-constraint is avoided, the stable reliability of the secondary locking mechanism 2 is ensured, the safety stability of the electric vehicle is improved, and the service life is prolonged. After the primary locking mechanism 2 fails, the secondary locking mechanism 2 can prevent the locking piece from being separated, so that the battery box 3 is well protected, the battery box 3 is prevented from falling, and the safety is improved.

The part atress that quick change support 1 is close to roof beam 4 is bigger, and locking mechanism 2 that is close to roof beam 4 includes one-level locking mechanism 2, can avoid battery box 3 to be close to the relative quick change support 1 of one side of roof beam 4 and rock for battery box 3 reliable locking is on quick change support 1. Keep away from locking mechanism 2 of roof beam 4 and include second grade locking mechanism 2, provide the support for battery box 3, improved the stability that battery box 3 is connected, can slightly rock in order to avoid or reduce direct impact in one side of second grade locking mechanism 2 through battery box 3, can also prevent that multiunit locking mechanism 2 from leading to the overstocking with the locking piece looks butt of battery box 3. In other embodiments, the primary locking mechanism 2, the secondary locking mechanism 2 may be disposed on either the side closer to the vehicle beam 4 or the side farther from the vehicle beam 4. In other embodiments, the locking mechanism 2 may not include the primary locking mechanism 2 and the secondary locking mechanism 2, may include only one of them, or may include both of them.

As shown in fig. 3-5, each group of locking mechanisms 2 close to the vehicle beam 4 comprises a primary locking mechanism 2, three independent locking bases 23, and each group of locking mechanisms 2 far away from the vehicle beam 4 comprises a secondary locking mechanism 2, and two independent locking bases 23, wherein the independent locking bases 23 are not provided with matched lock tongues 25 and lock connecting rods 24, and are matched with locking pieces of the battery box 3 to play a supporting role, so that the stress balance of the battery box 3 and the quick-change bracket 1 is improved. In other embodiments, a portion of the locking mechanism 2 may include only a single lock base 23, and a portion of the locking mechanism 2 may include the lock base 23, the lock link 24, and the locking tongue 25; each set of locking mechanisms 2 may also include both a separate lock base 23 and a lock link 24 and a locking tongue 25.

Example 2

Fig. 10 to 16 are schematic structural views of embodiment 2, and differences from embodiment 1 are explained in detail below.

As shown in fig. 10-15, the number of the vehicle beams 4 is two, the two vehicle beams 4 extend along the length direction L and are arranged at intervals along the width direction W, the quick-change bracket 1 comprises two bracket bodies 11 and a second cross beam 13, the second cross beam 13 is arranged at intervals along the length direction L and extends along the width direction W, the two bracket bodies 11 are respectively connected to two sides, away from each other, of the two vehicle beams 4, and the second cross beam 13 is connected with the two bracket bodies 11, so that the overall rigidity and strength of the quick-change bracket 1 can be improved. The number of the second cross beams 13 is multiple, so that the rigidity and the strength of the whole quick-change bracket 1 can be further improved; the second cross beams 13 are arranged at intervals along the length direction L, so that the loading uniformity of the quick-change bracket 1 can be improved. The support body 11 and the second crossbeam 13 surround and form frame construction, form in the frame construction and be used for holding the holding district 12 of battery case 3, simple structure, light, and rigidity is strong, in addition, the second crossbeam 13 can play the guard action to the battery case 3 structure in holding district 12, avoids other structures direct impact battery case 3, and the second crossbeam 13 is many, and many second crossbeam 13 interval arrangement, homoenergetic makes the guard action to battery case 3 better.

The second cross beam 13 is arranged above the vehicle beam 4, the second cross beam 13 is respectively connected with one ends, far away from the vehicle beam 4, of the two bracket bodies 11 along the width direction W, and the second cross beam 13 can form a support in the area where the vehicle beam 4 is overlapped along the width direction W through contact with the top of the vehicle beam 4, so that the structure is simple and reliable. The second cross beam 13 is located above the vehicle beam 4, so that the arrangement of the second cross beam 13 occupying the space of the side surface of the vehicle beam 4 can be avoided, and the battery box 3 and the vehicle beam 4 can be partially overlapped in the height direction H, as shown in fig. 13. The second cross member 13 is located above the vehicle beam 4, so that the battery box 3 and the vehicle beam 4 can be completely or partially overlapped in the height direction H, so as to fully utilize the height space of the side surface of the vehicle beam 4. In other embodiments, the second cross member 13 may not be provided; in other embodiments, the number of the second cross members 13 may be one or more, and the positions of the second cross members 13 with respect to the vehicle beam 4 and the bracket body 11 may be the same as or different from those of the present embodiment.

As shown in fig. 10 to 12, the upper surface of the bracket body 11 is higher than the upper surface of the roof beam 4, on the one hand, the second cross member 13 is convenient to connect with the bracket body 11; on the other hand, the height of the quick-change bracket 1 and the height of the battery box 3 are convenient to raise, the situation that the ground clearance of the quick-change bracket 1 or the battery box 3 is too small and other structures interfere is avoided, and the battery box 3 is also convenient to replace when the battery replacement equipment enters the bottom of the vehicle.

As shown in fig. 13, the quick-change bracket 1 further includes an electrical connector 17 and a mounting seat 16 for mounting the electrical connector 17, where the mounting seat 16 is mounted on the second beam 13 and located between the two bracket bodies 11, so that the quick-change bracket 1 is simple and reliable, and convenient to mount the electrical connector 17 on the quick-change bracket 1 and then mount the quick-change bracket 1 on the beam 4, and convenient for the assembly process to be concentrated. Along the width direction W, the mounting seat 16 and the electric connector 17 are located between the two quick-change brackets 1, so that the electric connector 17 is prevented from occupying the space of the accommodating area 12 in the bracket body 11, and the quick-change brackets 1 can be made compact in structure. In other embodiments, the positions of the electrical connector 17 and the mount 16 may be different from the present embodiment.

As shown in fig. 13 and 14, the second cross beam 13 is located above the vehicle beam 4, the quick-change bracket 1 further includes a mounting beam 112, the mounting beam 112 is fixedly connected with each second cross beam 13, the mounting beam 112 is fixed on the vehicle beam 4 through a mounting member 15, the second cross beam 13 is fixedly connected with the bracket body 11, and the fixed connection of the mounting beam 112, the bracket body 11 and the second cross beam 13 is realized.

As shown in fig. 15 and 16, the mounting beam 112 and the mounting member 15 are L-shaped, the first surface 151 of the mounting member 15 is fixed on one side of the vehicle beam 4, which is close to the bracket body 11, and the second surface 152 of the mounting member 15 extends along the width direction W and away from the direction of the vehicle beam 4 and is fixedly connected with the bottom surface of the mounting beam 112, so that the quick-change bracket 1 and the vehicle beam 4 are fixedly connected through the mounting member 15, the connection is simple, reliable and convenient, and the connection is realized through the connection of the mounting member 15, the conversion of the connection direction of the mounting beam 112 and the vehicle beam 4 is realized, and the requirements on the structure and the relative position of the quick-change bracket 1 and the vehicle beam 4 are reduced, so that the arrangement of parts is flexible. Providing the mounting member 15 with the first surface 151 and the second surface 152 can increase the contact area of the mounting member 15 with the mounting beam 112, the mounting member 15 with the vehicle beam 4, and thus the connection of the mounting beam 112 with the vehicle beam 4 is reliable. The first surface 151 of the mounting member 15 is fixedly connected with the side surface of the vehicle beam 4, so that accumulated errors in the width direction W are eliminated; the second face 152 of the mounting member 15 is fixedly connected to the bottom surface of the mounting beam 112, so that accumulated errors in the height direction H are eliminated; the accumulated error is reduced by the mounting piece 15, so that the accuracy requirement of the relative positions of the mounting beam 112 and the vehicle beam 4 is reduced, and the mounting is convenient. In other embodiments, the mounting beam 112 may be secured directly to the vehicle beam 4, such as where the mounting beam 112 is secured directly to the vehicle beam 4 by fasteners such as bolts or by welding.

In this embodiment, the mounting beam 112 and the mounting member 15 are L-shaped, and have a simple structure, so that conversion of the connection direction is facilitated. The L-shaped structure is provided with an opening, so that dirt can be cleaned conveniently; the opening of the mounting member 15 is directed downwardly and away from the vehicle beam 4 and the opening of the mounting beam 112 is directed upwardly and away from the vehicle beam 4 to further enhance the convenience of cleaning dirt. In other embodiments, the shape of the mounting beam 112 and the mounting member 15 may be the same as or different from the present embodiment.

As shown in fig. 18, the number of the mounting members 15 corresponding to one mounting beam 112 is four, and the four mounting members 15 extend in the length direction L and are arranged at intervals, so that the mounting beam 112 and the vehicle beam 4 can form multipoint connection, the connection is reliable, and the load transmission is uniform. In other embodiments, the number of the mounting members 15 may be one or more.

As shown in fig. 13 and 14, the bracket body 11 of the quick-change bracket 1 further includes a first cross member 114, a post 115, and a panel 113, and the quick-change bracket 1 further includes a mounting plate 19. Wherein the first cross member 114 is used for connecting the longitudinal beams 111 of the bracket body 11 which are arranged at intervals along the width direction W; the columns 115 are used for connecting the stringers 111 arranged at intervals in the height direction H, and the columns 115 are also used for connecting the stringers 111 arranged at intervals in the height direction H and the mounting beams 112; the mounting plates 19 are distributed close to the upright posts 115 and fixed on the upright posts 115, the mounting plates 19 are fixedly connected with the second cross beam 13, and the joints formed by the second cross beam 13 and the upright posts 115 are optimized to prevent stress concentration at the welding root. By providing the first cross member 114, the upright 115 and the mounting plate 19, the rigidity of the whole quick-change bracket 1 is improved, and in other embodiments, part or all of them may or may not be provided.

The side of the bracket body 11 far away from the vehicle beam 4 along the width direction W is also provided with a panel 113, which can form shielding and protection for the accommodating area 12 of the bracket body 11 and prevent sundries from entering the accommodating area 12 from the side surface of the width direction of the electric vehicle to influence the work of the battery box 3. In other embodiments, the panel 113 may or may not be provided.

As shown in fig. 12, 13 and 15, the quick-change bracket 1 includes four sets of locking mechanisms 2, wherein two sets of locking mechanisms 2 are disposed close to the vehicle beam 4, and two sets of locking mechanisms 2 are disposed away from the vehicle beam 4, and the locking mechanism 2 disposed close to the vehicle beam 4 includes one-stage locking mechanism 2, and the structure and arrangement of the one-stage locking mechanism 2 can refer to embodiment 1. Each set of locking mechanism 2 remote from the vehicle beam 4 comprises only a single lock base 23, each lock base 23 is free of a lock link 24 and a lock tongue 25 which are matched with the lock base, and the single lock base 23 is matched with the shape of a locking piece of the battery box 3 so as to play a supporting role. In other embodiments, each set of locking mechanisms 2 remote from the vehicle beam 4 may include a secondary locking mechanism 2, and the structure and arrangement of the secondary locking mechanism 2 may be referred to in embodiment 1. In other embodiments, the number, structure, and arrangement of the locking mechanisms 2 may be exactly the same as those of embodiment 1; the locking mechanism 2 close to the vehicle beam 4 comprises a primary locking mechanism 2, so that the battery box 3 is locked and supported reliably; the secondary locking mechanism 2 is arranged in the locking mechanism 2 far away from the vehicle beam 4, so that the battery box 3 can be prevented from being locked and positioned excessively, and the secondary locking mechanism 2 can also prevent the battery box 3 from falling when the primary locking mechanism 2 fails; each group of locking mechanism 2 comprises a separate lock base 23, which further supports the battery box 3, is convenient for the balance of the stress of the battery box 3 and can improve the stress of a single lock base 23. In other embodiments, the specific structure, number, and arrangement of the locking mechanism 2 may be adjusted as desired.

Other structures of embodiment 2 can be referred to embodiment 1.

Example 3

Fig. 17 is a schematic structural diagram of embodiment 3, and the differences from embodiment 1 are explained in detail below.

The electric vehicle comprises a quick-change bracket 1. As shown in fig. 17, the quick-change bracket 1 includes two bracket bodies 11 and two second cross beams 13, the second cross beams 13 are located below the vehicle beam 4, and each second cross beam 13 is connected with two ends of each bracket body 11 along the width direction W, so that the connection between the second cross beam 13 and the bracket body 11 is reliable, and the overall rigidity of the quick-change bracket 1 is improved. The second cross beam 13 is located below the vehicle beam 4, so that the arrangement of the space occupied by the second cross beam 13 on the side surface of the vehicle beam 4 can be avoided, and the battery box 3 and the vehicle beam 4 can be fully or partially overlapped in the height direction, so that the height space on the side surface of the vehicle beam 4 can be fully utilized. The two second cross beams 13 are respectively positioned at two sides of the length direction L of the quick-change bracket 1, so that the quick-change bracket 1 is convenient to bear balanced force. In other embodiments, the number, position, and connection relationship of the second cross members 13 may be the same as or different from those in the present embodiment.

The quick-change bracket 1 further comprises an electrical connector 17 (not shown in fig. 17, refer to fig. 1-3 of embodiment 1) and a mounting seat 16 for mounting the electrical connector 17, wherein the mounting seat 16 is mounted on the second cross beam 13 and is located between the two bracket bodies 11, so that the electrical connector 17 is prevented from occupying the space of the accommodating area 12 in the bracket bodies 11, and the quick-change bracket 1 is compact. The electric connector 17 is installed on the second cross beam 13, so that the electric connector 17 is simple and reliable, the quick-change bracket 1 is convenient to install on the beam 4 after being installed on the quick-change bracket 1, and the assembly process is convenient to concentrate.

The quick-change bracket 1 is connected to two side surfaces of two vehicle beams 4 (not shown in fig. 17, refer to fig. 1 to 3 of embodiment 1) of an electric vehicle, which are away from each other in the width direction W, and the bracket body 11 of the quick-change bracket 1 is directly fixed to the side surfaces of the vehicle beams 4 by fasteners. The electric vehicle further comprises a buffer piece 6, the buffer piece 6 is arranged between the bracket body 11 and the vehicle beam 4, the buffer piece 6 can relieve impact, and can also fill gaps between the vehicle beam 4 and the longitudinal beam 111 to compensate errors of the vehicle beam 4 and the longitudinal beam 111 along the width direction W, so that the accuracy requirements on the quick-change bracket 1 and the vehicle beam 4 are reduced. The buffer piece 6 can adjust the gap between the mounting longitudinal beam 111 and the vehicle beam 4, so that the bracket body 11 and the second cross beam 13 of the quick-change bracket 1 can be conveniently connected together and then mounted on the vehicle beam 4, and the quick-change bracket 1 can be conveniently assembled and mounted on an electric vehicle for concentration of working procedures. In the present embodiment, the buffer member 6 is a plastic member having elasticity, and in other embodiments, other structures having a buffer function or a gap adjusting function may be used. In other embodiments, the cushioning member 6 may not be provided.

The quick-change bracket 1 comprises four groups of locking mechanisms 2, two groups of locking mechanisms 2 are arranged close to the vehicle beam 4 along the width direction W, and two groups of locking structures are arranged at the edge positions of the bracket body 11 far away from the vehicle beam 4. Each set of locking mechanisms 2 adjacent to the vehicle beam 4 includes six individual lock bases 23, each lock base 23 having no lock link 24 and no lock tongue 25 engaged therewith, the individual lock bases 23 being engaged with the shape of the locking members of the battery box 3 to provide a supporting function. Each locking mechanism 2 remote from the vehicle beam 4 comprises a primary locking mechanism 2 and a separate lock base 23. In other embodiments, the specific structure, number, arrangement position of the lock mechanism 2 may be the same as in embodiment 1. In other embodiments, the specific structure, number and arrangement position of the locking mechanism 2 can be adjusted according to the requirements.

Other structures of embodiment 3 can be referred to embodiment 1.

Example 4

Fig. 18 is a schematic structural view of embodiment 4, and the differences from embodiment 1 are explained in detail below.

The electric vehicle comprises a quick-change bracket 1. As shown in fig. 18, the quick-change bracket 1 includes two bracket bodies 11, an electrical connector 17, and a mount 16 for mounting the electrical connector 17. The two bracket bodies 11 are respectively connected to two opposite sides of two vehicle beams 4 (not shown in fig. 18, refer to fig. 1 to 3 of embodiment 1) of the electric vehicle. The mount pad 16 is connected in two support body 11, and is simple reliable, can also realize the connection of two support body 11, strengthens quick change support 1 holistic rigidity. In other embodiments, the mount 16 may be connected to other structures.

The quick-change bracket 1 further comprises a connecting piece 14 extending along the width direction W, and the connecting piece 14 connects the two bracket bodies 11, so that the overall rigidity of the quick-change bracket 1 can be improved. The connecting member 14 and the electrical connector 17 are located at both ends of the quick-change bracket 1, respectively, in the length direction L. On the one hand, the scattered arrangement of the connecting piece 14 and the electric connector 17 is facilitated, and the flexibility of the arrangement of the connecting piece 14 and the electric connector 17 is improved; on the other hand, the connection member 14 is prevented from interfering with the electrical connector 17. Further, the portion of the connecting piece 14 located between the two vehicle beams 4 is concave downward, so that interference between the connecting piece 14 and parts between the two vehicle beams 4, such as interference between the connecting piece 14 and a transmission shaft, is avoided. In other embodiments, the connector 14 may not be provided. In other embodiments, the shape, location and connection relationship of the connector 14 may be different from the present embodiment.

Other structures of embodiment 4 can be referred to embodiment 1.

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 are intended to be within the scope of the invention.

Claims

1. The utility model provides a quick change support, its is used for installing in order fixed battery box on electric vehicle's roof beam, its characterized in that, quick change support includes the support body, the support body connect in the roof beam and from the roof beam outwards extends, the support body is formed with holds the district, hold the district in electric vehicle's direction of height with the roof beam at least partially coincides, it is used for holding at least part to hold the district the battery box, the lower surface of support body is not less than the lower surface of roof beam.

2. The quick-change bracket of claim 1, wherein an upper surface of the bracket body is not higher than an upper surface of the vehicle beam.

3. The quick-change bracket of claim 1, wherein the electric vehicle has two vehicle beams, and the two vehicle beams are spaced apart along the width direction of the electric vehicle, the quick-change bracket comprises two bracket bodies, and the two bracket bodies are respectively connected to two sides of the two vehicle beams facing away from each other.

4. A quick-change bracket according to claim 3, wherein at least two sets of locking mechanisms are arranged at intervals on each bracket body along the width direction of the electric vehicle, each set of locking mechanisms is arranged along the length direction of the electric vehicle, and the locking mechanisms are used for being matched with locking pieces on the battery box so as to lock or unlock the battery box and the quick-change bracket.

5. The quick-change bracket of claim 4, wherein the bracket body includes a plurality of stringers extending along a length of the electric vehicle and spaced apart along a width of the electric vehicle, the locking mechanism being mounted on the stringers.

6. A quick-change stand according to claim 3, further comprising an electrical connector and a mounting seat for mounting the electrical connector;

the mounting seats are connected to the two bracket bodies;

7. The quick-change stand of claim 6, further comprising a liquid-cooled assembly mounted on the mount and positioned below the electrical connector.

8. The quick-change bracket of claim 6, further comprising a connector extending in a width direction of the electric vehicle, both ends of the connector being connected to the two bracket bodies, respectively, the connector and the electrical connector being located at both ends of the quick-change bracket, respectively, in a length direction of the electric vehicle.

9. The quick-change bracket of claim 8, wherein a portion of the connecting member located between the two side frames is concave downward in a width direction of the electric vehicle.

10. The quick-change bracket of claim 5 further comprising a plurality of second cross members connecting two of said bracket bodies, said second cross members being spaced apart along the length of said electric vehicle and extending along the width of said electric vehicle, said second cross members and said bracket bodies circumscribing to form a frame structure, said receiving area being formed in said frame structure.

11. The quick-change bracket according to claim 10, wherein the second cross members are located below the vehicle beam, the number of the second cross members is two, and each of the second cross members is connected to both ends of each bracket body in the width direction of the electric vehicle;

12. The quick-change bracket of claim 11 further comprising an electrical connector mounted on the second cross member, the electrical connector being located between two of the bracket bodies.

13. The quick-change bracket of claim 11, wherein the second cross members are positioned above the vehicle beams, the bracket body includes mounting beams fixedly connected to each of the second cross members, and the mounting beams are secured to the vehicle beams by mounting members.

14. The quick-change bracket of claim 13, wherein the first face of the mounting member is secured to a side of the vehicle beam adjacent the bracket body and the second face of the mounting member extends in a direction along a width of the electric vehicle and away from the vehicle beam and is fixedly coupled to a bottom surface of the mounting beam.

15. A quick change bracket as claimed in claim 14 wherein the mounting beam and/or the mounting member is L-shaped.

16. The quick-change bracket of claim 11, wherein the second cross member is positioned below the vehicle beam, the longitudinal beam of the bracket body adjacent to the vehicle beam is fixedly connected to the vehicle beam, and a buffer member is disposed between the longitudinal beam fixedly connected to the vehicle beam and the vehicle beam.

17. The quick-change bracket of claim 1, wherein the quick-change bracket is provided with at least three sets of locking mechanisms along a width direction of the electric vehicle, each set of locking mechanisms being arranged along a length direction of the electric vehicle, the locking mechanisms being adapted to cooperate with locking members on the battery box to lock or unlock the battery box and the quick-change bracket.

18. The quick-change bracket of claim 17, wherein at least two sets of the locking mechanisms are provided on the same side of the vehicle beam in a width direction of the electric vehicle.

19. The quick change bracket of claim 17, wherein at least one set of the locking mechanisms is disposed adjacent to the vehicle beam in a width direction of the electric vehicle.

20. The quick-change bracket of claim 17, wherein at least one set of the locking mechanisms is located at a position of the quick-change bracket away from an edge of the vehicle beam or near an edge of the quick-change bracket in a width direction of the electric vehicle.

21. The quick-change bracket of claim 17, wherein each set of locking mechanisms includes a number of locking bases, the number of locking bases corresponding to the locking mechanism closer to the vehicle beam being greater than the number of locking bases corresponding to the locking mechanism farther from the vehicle beam, along a width direction of the electric vehicle.

22. The quick-change bracket of claim 21, wherein at least two sets of the locking mechanisms comprise a lock link and a lock tongue, the lock link being movably coupled to the lock base by the lock tongue.

23. The quick change bracket of claim 22 wherein said locking mechanism proximate said beam comprises a primary locking mechanism comprising three lock bases, said lock links being movably coupled to three of said lock bases by said locking bolts;

24. An electric vehicle comprising a quick change bracket according to any preceding claim.