CN218558552U

CN218558552U - Quick-change support and battery-replacing vehicle comprising same

Info

Publication number: CN218558552U
Application number: CN202222809037.1U
Authority: CN
Inventors: 张建平; 刘青; 朱明厚
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: 2023-03-03
Anticipated expiration: 2032-10-24
Also published as: CN116118468A; CN219007569U; CN219133830U; CN116118460A; CN116409133A; CN218558550U; CN219096473U; CN218558551U; CN116252609A; CN116118459A; CN219007570U; CN218577488U; CN116572722A; CN218558543U; CN115991087A; CN115991086A; CN218536326U; CN218805183U; CN116118464A; CN116409130A

Abstract

The utility model provides a quick change support and contain its battery replacement vehicle, which comprises a bracket body, the support body is equipped with the locking mechanism who sets up along automobile body length direction interval at least, locking mechanism is used for passing through the rotatory locking mode locking of T type or unblock battery package along vertical direction, the support body pass through floating unit connect in the automobile body makes the support body is relative in vertical the automobile body can float. The utility model discloses a mode switching battery package of quick change support can follow vertical relative floating through the unit that floats between the support body of quick change support and the automobile body to this slows down the automobile body and in the distortion or goes the harm that the automobile body receives increase in torque or vibrations direct transmission brought to the battery package under the road conditions of jolting, improves the life of battery package, and locking mechanism through the rotatory locking mode of T type can realize trading quick installation and the dismantlement of electric vehicle, simplifies the installation and dismantles the mode, improves quick change efficiency.

Description

Quick-change support and battery-replacing vehicle comprising same

The present application claims priority from chinese patent application 2022108370919, filed 2022, 07, 15. The present application refers to the above-mentioned chinese patent application in its entirety.

Technical Field

The utility model relates to a vehicle trades electric technical field, in particular to quick change support and contain its trade electric vehicle.

Background

At present, for an electric vehicle, a battery pack is generally fixedly connected with a vehicle body of the electric vehicle, and the electric vehicle supplements electric energy in the form of charging; or, the battery pack and the vehicle body of the electric vehicle can be connected in a quick-change mode, and the electric vehicle supplements electric energy in a quick-change battery pack mode. Because the charging energy supplementing mode is time-consuming and long, the quick energy supplementing mode is relatively more convenient and increasingly receives attention. However, for the electric vehicle with quick energy replacement, the electric vehicle needs to be provided with a battery pack bracket so that the battery pack can be quickly disassembled and assembled on the electric vehicle. The battery pack support is generally fixed on a vehicle body of an electric vehicle, namely, under the condition that the vehicle body is stressed due to rigid connection between the battery pack support and the vehicle body, force can be transmitted to the battery pack support and then transmitted to a battery pack.

The structure can ensure that the distortion of the vehicle body caused by steering or bumping in the running process of the electric vehicle is directly transmitted to the battery pack bracket and the battery pack in a rigid connection mode, so that the connection between the battery pack and the battery pack bracket is influenced, and particularly, a locking mechanism on the battery pack bracket can be damaged to cause that the battery pack cannot be hooked; or, the battery pack is subjected to torque, so that the battery pack is deformed, cracked or even broken, the performance of the battery pack is affected, and even a safety accident of the vehicle can happen seriously. And, because locking mechanism is provided with a plurality of jack catchs originally, when with battery package locking or unblock, it is comparatively loaded down with trivial details when needing a plurality of jack catchs shrink simultaneously or separate and lead to the battery package to pass through locking mechanism and connect in battery package support, lead to electric vehicle long-consuming time and inefficiency when trading the electricity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that in the prior art, a battery pack support is rigidly connected with an electric vehicle, and the connection between the battery pack and the battery pack support is affected by the vehicle body of the electric vehicle due to jolting and other reasons, so that a locking mechanism on the battery pack support is damaged and the battery pack cannot be hung; or drive battery package vibrations or deformation, and then influence the defect of the performance of battery package, provide a quick change support and contain its trade electric vehicle.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides a quick-change support, includes the support body, the support body is equipped with the locking mechanical system who sets up along automobile body length direction interval at least, locking mechanical system is used for along vertical direction through the rotatory locking mode locking of T type or unblock battery package, the support body passes through floating unit connect in the automobile body makes the support body is relative in vertical the automobile body can float.

The battery pack support is used for replacing electric vehicles, and a locking mechanism which is locked or unlocked in a T-shaped rotating locking mode is arranged on the support body to be connected with a battery pack, so that the battery pack can be quickly replaced. Meanwhile, the battery pack support is connected to the electric vehicle in a floating mode, so that jolting or twisting and other forces borne by the electric vehicle are offset by the floating unit, and further the forces are reduced or even not transmitted to the battery pack, so that the connection between the battery pack and the battery pack support is avoided being influenced, and the reliability and the stability of the locking mechanism in the using process are ensured. Meanwhile, torque transmission to the battery pack can be reduced, vibration or deformation of the battery pack is avoided, the use safety of the battery pack is improved, the battery pack is not prone to damage, on the basis, the service life of the battery pack is prolonged, and the economical efficiency is improved.

In addition, the locking mechanism which is locked or unlocked in a T-shaped rotating locking mode is arranged on the support body to be connected with the battery pack, so that the battery pack can be quickly installed and detached from the support body through vertical movement, the installation and detachment modes are simplified, and the quick-change efficiency is improved.

Preferably, the locking mechanism comprises a lock seat, and the lock seat is used for being matched with a locking piece on the battery pack and realizing locking and unlocking of the battery pack and the bracket body in a T-shaped rotary locking mode.

Among the above-mentioned technical scheme, the lock seat is used for cooperating with the lock piece on the battery package, has guaranteed the connection stability of battery package, makes the battery package connect on the support body along vertical direction through the rotatory locking mode of T type, has not only practiced thrift the space that trades electric vehicle top, only needs to rotate certain number of turns to realize the connection and the dismantlement of battery package moreover, accords with more that the battery package trades the electricity logic along vertical direction, has improved the dismouting speed of battery package.

Preferably, the lock base has a connecting channel extending in the vertical direction, and a clamping portion disposed adjacent to the connecting channel, the connecting channel is used for allowing the locking member to move upward in the vertical direction to a position corresponding to the clamping portion, and the locking member is locked on the clamping portion by rotation.

Among the above-mentioned technical scheme, the card is held the position and is located the tip of connecting channel, and the lock piece penetrates in the connecting channel and makes the lock piece rotate to the position that the card held the portion and corresponds through rotatory locking piece, realizes connecting on the support body along vertical direction battery package, and guarantees that the position of lock piece is all the time in connecting channel, improves the stability of locking back battery package.

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

Among the above-mentioned technical scheme, lead to the lock piece through the spigot surface, the lock piece of being convenient for rotates smoothly to the locking position of card portion of holding, improves locking mechanism's locking or unblock success rate to and the rate of reuse that battery package articulated many times.

Preferably, the connecting channel is matched in shape to the locking member.

Among the above-mentioned technical scheme, set up the phase-match through the shape with lock piece and linkage channel, improve the stability of lock piece after stretching into linkage channel.

Preferably, the vehicle body has a vehicle beam extending along a length direction of the vehicle body, the bracket body is located below the vehicle beam, and the floating unit is disposed above the bracket body.

Among the above-mentioned technical scheme, the support body be convenient for with the cooperation of battery package, guaranteed the connection stability of battery package, the unit that floats can reduce electric vehicle and receive the torsion moment or vibrations transmission to the support body when turning to the distortion or jolting, and then makes the support body receive the torsion moment or the influence of vibrations reduces, and the battery package does not occupy the upper portion space of automobile body to can reserve the space that more people carried the thing for electric vehicle.

Preferably, the floating unit includes an elastic member, a connecting member and a limiting member, the connecting member is connected to the bracket body and the vehicle body respectively, one end of the connecting member is fixed to one of the bracket body and the vehicle body, the other end of the connecting member is sequentially penetrated through the other of the bracket body and the vehicle body and the elastic member, and an end of the other end of the connecting member is provided with the limiting member so that the elastic member is limited to the bracket body or the vehicle body and between the limiting members.

Above-mentioned structure sets up, guarantees through elastic component and connecting piece that the support body floats for the vertical of automobile body, improves the support body through the locating part to the vertical unsteady stability of automobile body, avoids the support body to break away from the automobile body.

Preferably, the bottom plate of the car beam is provided with a through hole for the connecting piece to movably penetrate, the lower end of the elastic piece abuts against the bottom plate, and the upper end of the elastic piece abuts against the limiting piece.

Above-mentioned structure sets up, through locating the elastic component between bottom plate and the locating part, avoids the effort that the automobile body received direct conduction to the support body on, and then avoids influencing being connected of support body and battery package, and simultaneously, the support body can be at the within range relative floating between bottom plate and the locating part.

Preferably, the lateral part of car roof beam is equipped with the mounting panel, the mounting panel certainly the lateral part of car roof beam is outside horizontal extension, set up the through-hole on the mounting panel for the connecting piece movably wears to establish, the lower extreme of elastic component support lean on the mounting panel, the upper end of elastic component with the locating part butt.

The structure is arranged, and the side part of the vehicle beam is arranged through the mounting plate, so that the floating unit is positioned outside the vehicle beam, and the bottom plate of the vehicle beam is prevented from being communicated with the side plate to ensure the strength of the vehicle beam.

Preferably, the side portion of the vehicle beam is further provided with a fixing bracket, the fixing bracket is provided with a fixing portion fixed with the vehicle beam and a connecting portion, an accommodating area is formed between the connecting portion and the side portion of the vehicle beam and used for accommodating the mounting plate, and the mounting plate is fixed on the fixing bracket.

Above-mentioned structure sets up, and the mounting panel passes through the indirect fixation of fixed bolster on the car roof beam, and the outside of mounting panel is located to the fixed bolster cover simultaneously, plays the guard action to mounting panel and floating unit to fixed bolster and car roof beam fixed connection improve the connection stability of mounting panel with this.

Preferably, a cover plate is arranged above the fixing support, and the cover plate at least covers the accommodating area.

Above-mentioned structure sets up, sets up the apron and will hold the top in district and seal, further protects mounting panel and floating unit to realize dustproof or waterproof function.

Preferably, the floating unit further comprises a limiting plate, and the limiting plate is arranged between the elastic piece and the limiting piece.

The structure is arranged, the contact area between the limiting part and the elastic part is increased through the limiting plate, and therefore the stress of the elastic part is uniform when the automobile body of the electric vehicle is stressed due to jolts and other reasons.

Preferably, there are a plurality of floating units, two adjacent floating units form a group of floating assemblies, and the floating units of the same group of floating assemblies are connected to the same limiting plate.

Above-mentioned structure sets up, forms a set of floating assembly and a shared limiting plate through two floating units for floating assembly's compact structure improves the stability that support body and car roof beam are connected, and the same limiting plate of sharing can reduce the installation procedure, promotes the installation effectiveness.

Preferably, there are two said vehicle beams, and each said vehicle beam is provided with a plurality of said floating assemblies spaced along the length of said vehicle body for connection to said frame body.

Above-mentioned structure sets up, all sets up the subassembly that floats so that being connected of support body and vehicle is more firm through on two car roof beams.

An electric vehicle comprises the quick-change bracket.

This trade electric vehicle, its automobile body and battery package are along vertical articulate and through the support body switching, realize trading fast of battery package, the battery package can vertically float relatively through the floating unit that sets up between support body and the automobile body, can make electric vehicle receive jolt or power such as distortion offset by floating unit, and then reduce or even no longer conduct to the battery package to this slows down electric vehicle receiving turn to and twist or torsion moment of torsion or vibrations when jolting and transmit to the battery package and then influence the condition of battery package performance.

Preferably, the battery replacement vehicle is an electric truck.

Among the above-mentioned technical scheme, electric truck's battery package is bulky, weight is heavy for in use runs into the road conditions of jolting, changes the connection of influence battery package and battery package support and electric truck makes the moment of torsion when self twists because of loading the goods bigger, and is bigger to the influence of battery package promptly. A battery pack holder with floating units is therefore used to mitigate the impact on the battery pack and the connection between the battery pack and the battery pack holder.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a quick change support sets up the locking mechanism through the rotatory locking mode locking of T type or unblock on the support body in order to articulate the battery package for the quick change can be realized to the battery package. Mode switching battery package through battery package support, realize changing the electricity fast of battery package, can follow vertical relative floating through floating the unit between the support body of battery package support and the automobile body, can make electric vehicle receive jolt or power such as distortion offset by floating the unit, and then reduce and no longer conduct to battery package even, with this slow down the automobile body in the distortion or go under jolting the road conditions the increase in torque that the automobile body receives or the harm that vibrations direct transfer brought to battery package, the safety in utilization of battery package has been improved, and the battery package is difficult impaired, on this basis, the life of battery package increases, the economic nature has been improved.

Drawings

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

Fig. 2 is a partially enlarged view of a portion C in fig. 1.

Fig. 3 is a schematic structural diagram of a vehicle body, a quick-change bracket, and a battery pack according to an embodiment of the present invention.

Fig. 4 is a schematic partial structure diagram of a vehicle body according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a bracket body according to an embodiment of the present invention.

Fig. 6 is a partial enlarged view of a floating unit according to an embodiment of the present invention.

Fig. 7 is a schematic view of a position relationship of a bracket body according to an embodiment of the present invention.

Fig. 8 is an exploded view of a locking member and locking mechanism according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a locking member and a locking mechanism according to an embodiment of the present invention in a locked state.

Fig. 10 is a schematic structural diagram illustrating a process of unlocking the locking member and the locking mechanism according to an embodiment of the present invention.

Fig. 11 is a schematic view of a locking member and a lock base in a locked state according to an embodiment of the present invention.

Fig. 12 is a top view of a locking member and locking mechanism of an embodiment of the present invention in a locked state.

Fig. 13 is a perspective view of a locking member and a base according to an embodiment of the invention.

Fig. 14 is an exploded view of a locking member and locking mechanism according to another embodiment of the present invention.

Description of reference numerals:

electric vehicle 100

Lock member 300

Lock lever 21

Shaft body 211

Hanging part 212

Base 22

Nut 23

Nut sleeve 24

Lock seat 31

Connecting channel 32

Catch 33

Guide surface 331

Battery pack 10

Vehicle beam 20

Longitudinal direction A of the beam

Vehicle width direction B

Bracket body 30

Locking mechanism 40

Floating unit 50

Elastic member 1

Connecting piece 2

Limiting part 3

Mounting plate 4

Fixed support 5

Fixed part 51

Connecting part 52

Receiving area 53

Cover plate 54

Limiting plate 6

Floating assembly 7

Detailed Description

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

Example 1

The utility model provides a quick-change support can be used to concrete structure such as the electric vehicle 100 that fig. 1 shows, electric vehicle 100 has two car beams 20 along fore-and-aft direction parallel arrangement for connect electric vehicle 100's essential elements, for example hang, wheel etc, electric vehicle's battery package 10 is also installed in the below of these two car beams 20 so that can follow electric vehicle 100's below and carry out the quick replacement of battery package 10 to it, make the change of battery package 10 more convenient. In the present embodiment, electric powered vehicle 100 is a heavy truck or a light truck, but may be applied to a vehicle model of a passenger vehicle such as a car. The quick-change bracket of the embodiment is specifically structured as shown in fig. 1, 5 and 7, and includes a bracket body 30 connected to two vehicle beams 20 of an electric vehicle 100, the bracket body 30 is a frame structure formed by welding profiles, each locking mechanism 40 is locked and unlocked in a vertical direction by a T-shaped rotary locking manner, and is disposed at intervals on the bracket body 30 at least along a length direction of a vehicle body, specifically, on a side wall or on a lower surface of a longitudinal beam of the bracket body 30, and is used for being locked and connected with a battery pack 10. In this embodiment, locking mechanism 40 adopts the rotatory locking mode of T type for battery package 10 can be followed vertical direction and the locking piece on the battery package 10 only need rotate certain number of turns can realize battery package and locking mechanism 40's locking and unblock, thereby makes battery package 10 connect or break away from for support body 30, realizes the purpose of quick replacement battery. For the material of the bracket body 30, other materials, such as plates and square tubes, can be selected according to actual requirements, and are not limited to the section bar.

Meanwhile, a floating unit 50 is arranged between the bracket body 30 and the car beam 20 along the vertical direction, the floating unit 50 is used for transferring the bracket body 30 to the car beam 20, the floating unit 50 can float along the vertical direction, when the electric vehicle 100 runs on a road with poor road conditions, jolts are caused, or a steering angle is large, so that the car beam 20 is greatly distorted, vibration or torque can be generated, the floating unit 50 is arranged on the car beam 20, so that the battery pack 10 can float vertically relative to the car beam 20, forces such as jolts or distortion and the like are counteracted when the electric vehicle is subjected to, and further the transmission to the battery pack 10 is reduced or even avoided, the connection between the battery pack 10 and the battery pack bracket is avoided being influenced, and the reliability and the stability of the locking mechanism 40 in the using process are ensured. Meanwhile, torque transmission to the battery pack 10 can be reduced to avoid vibration or deformation of the battery pack 10, so that the use safety of the battery pack 10 is improved, the battery pack 10 is not easy to damage, and the service life of the battery pack 10 is prolonged on the basis.

Here, as shown in fig. 2, the floating unit 50 is disposed above the bracket body 30 to be connected with the vehicle body 20 such that the bracket body 30 is located below the vehicle body 20. The battery pack 10 is disposed below the bracket body 30, so that an electrical replacement device (not shown) can detach and mount the battery pack 10 from below the electric vehicle, that is, lock or unlock the battery pack 10 with respect to the locking mechanism 40 of the bracket body 30, thereby achieving taking, placing, and transporting of the battery pack 10. Meanwhile, the space below the vehicle body frame 20 can be fully utilized, and the space above the vehicle body frame 20 is used for carrying cargo and the like, so that the space on the electric vehicle 100 is more reasonably utilized.

In other embodiments, the bracket body 30 may be disposed above the vehicle body 20, and the floating unit 50 may be disposed below the bracket body 30 to be coupled to the vehicle body 20.

For other electric vehicles 100 without a vehicle beam, the bracket body 30 may be directly connected to the vehicle body or other parts of the vehicle body through the floating unit 50, so that the bracket body 30 may float in the vertical direction with respect to the vehicle body.

The specific structure of the locking mechanism 40 is as shown in fig. 8, a plurality of locking mechanisms 40 are arranged on the stent body 30, and the locking mechanisms 40 are respectively located at least on two sides of the stent body 30 and are arranged at intervals along the length direction of the stent body 30. The locking mechanisms 40 are arranged on two sides of the bracket body 30 at multiple points, so that the connection reliability and stability of the battery pack 10 relative to the bracket body 30 and the vehicle beam 20 can be improved. In another embodiment, a plurality of rows of locking mechanisms 40 may be provided, each row having a plurality of locking mechanisms 40 spaced along the length of the bracket body 30, so as to further improve the connection reliability and stability of the battery pack.

Of course, in other embodiments, the locking mechanisms 40 may be disposed on two sides of the bracket body 30 along the width direction of the bracket body 30, and each side of the locking mechanism 40 is disposed at intervals.

The locking mechanism 40 includes a lock seat 31 in a T-shaped rotary locking manner, the lock seat 31 is a cylindrical column or a rectangular column, the lock seat 31 is disposed on the side wall or the lower surface of the longitudinal beam of the bracket body 30, as shown in fig. 3, the lock seat 31 may be directly disposed on the bracket body 30, and the top surface of the lock seat 31 is welded to the lower end surface of the bracket body 30, so as to improve the stability of the lock seat 31 connected to the bracket body 30. In another embodiment, as shown in fig. 8 and 9, a connecting plate may be further disposed on an outer peripheral side of the lock seat 31, the connecting plate is a rectangular plate and extends outward from the body of the lock seat 31, the connecting plate is used for being connected with the bracket body 30, specifically, the connecting plate may be welded to the bracket body 30 or connected by a bolt assembly, and the connecting plate increases a contact area between the lock seat 31 and the bracket body 30, so as to improve connection stability of the lock seat 31 connected to the bracket body 30. Lock seat 31 is used for cooperating with the locking piece 300 on the battery package 10 and realizes battery package 10 and support body 30 locking and unblock, thereby guaranteed the connection stability of battery package 10, make battery package 10 connect on support body 30 along vertical direction through the rotatory locking mode of T type, the space above electric vehicle 100 has not only been practiced thrift, and locking piece 300 only need rotate certain number of turns can realize connecting and dismantling of battery package 10, accord with the battery package 10 more and trade electric logic along vertical direction trade, the dismouting speed of battery package 10 has been improved.

As shown in fig. 10, 11 and 12, the lock base 31 has a connecting channel 32 extending in the vertical direction, and a catching part 33 disposed adjacent to the connecting channel 32, the catching part 33 is higher than the connecting channel 32 in the height direction of the lock base 31, the connecting channel 32 is used for the locking member 300 to move upward in the vertical direction to a position corresponding to the catching part 33, and the locking member 300 is locked on the catching part 33 by rotation. Because the clamping part 33 is located at the end of the connecting channel 32, the locking piece 300 penetrates into the connecting channel 32 and rotates the locking piece 300 to the position corresponding to the clamping part 33 by rotating the locking piece 300, so that the battery pack 10 is connected to the bracket body 30 in the vertical direction, the position of the locking piece 300 is always in the connecting channel 32, and the stability of the battery pack 10 after being locked is improved. Meanwhile, the connecting channel 32 is matched with the shape of the locking member 300, so that the locking member 300 can enter the connecting channel 32 conveniently, and the stability of the locking member 300 after the locking member extends into the connecting channel 32 is improved.

In the present embodiment, the locking member 300 is inserted into the lock seat 31 in the vertical direction and is matched with the lock seat 31, so as to achieve T-shaped rotation locking of the battery pack 10 and the electric vehicle 100, the battery pack 10 is fixedly connected to the bracket body 30 through the lock seat 31 and the locking member 300 arranged in the vertical direction, and the bracket body 30 is relatively connected to the body frame 20 through the floating unit 50 in the vertical direction, so that the bracket body 30 and the battery pack 10 are integrally floated in the vertical direction relative to the body frame, thereby ensuring stability of the battery pack 10 connected to the bracket body 30, reducing torque transmission to the battery pack 10 and avoiding vibration or deformation of the battery pack 10, and further, through the bracket body 30 and the floating unit 50 connected to the body frame 20, achieving that the battery pack 10 can not float due to the influence of relative floating between the bracket body 30 and the floating unit 50 while the bracket body 30 can float relative to the body frame in the vertical direction.

In this embodiment, the clamping part 33 is further provided with a guide surface 331, the guide surface 331 is obliquely arranged upwards or obliquely downwards from the connecting passage 32, the guide function of the locking member 300 in the rotating process is achieved, the locking member 300 is locked or unlocked, and therefore the locking or unlocking success rate of the locking mechanism 40 is improved, and the repeated utilization rate of the battery pack 10 is achieved through multiple times of hanging.

In other embodiments of the present embodiment, the installation positions of the lock holder 31 and the lock member 300 of the T-shaped rotation locking manner described above may also be interchanged, that is, when the lock member 300 is connected to the bracket body 30 in the vertical direction, the lock holder 31 is correspondingly disposed on the battery pack 10, and the T-shaped rotation locking of the battery pack 10 and the electric vehicle 100 in the vertical direction can also be achieved.

In addition, the locking piece 300 is inserted into the lock seat 31 along the vertical direction to rotate for locking, and the battery replacing device can realize the battery replacing operation of hanging the battery pack 10 along the vertical direction through the locking mechanism 40 by lifting the battery pack 10 to the battery replacing height, so that the battery replacing logic of the battery pack 10 along the vertical direction is more consistent.

In this embodiment, as shown in fig. 9, the locking member 300 on the battery pack 10 includes a locking rod 21, the locking rod 21 includes a shaft body 211, and further includes at least one hanging part 212 extending outward from one end of the shaft body 211, a joint between the shaft body 211 and the hanging part 212 is vertically disposed, and the locking member 300 is locked at a locking position of the locking seat 31 by rotating the hanging part 212.

Further, as shown in fig. 13, the lock lever 21 includes two hanging parts 212, the two hanging parts 212 respectively extend from one end of the shaft body 211 in opposite directions, so that the lock lever 21 is T-shaped, and the locking member 300 is rotationally locked at the locking position of the lock housing 31 by the two hanging parts 212. Correspondingly, the connecting channel 32 of the lock base 31 is shaped to match the lock rod 21 with two hanging parts 212, so that the lock rod 21 enters the connecting channel 32 to a position corresponding to the holding part 33 and then is locked on the holding part 33 through rotation.

In other embodiments, as shown in fig. 14, the lock lever 21 includes three hanging parts 212, the three hanging parts 212 respectively extend from one end of the shaft body 211 along different directions, and an included angle is formed between the three hanging parts 212.

As shown in fig. 8 to 14, the locking member 300 further includes a base 22, and the lock lever 21 is disposed in the base 22 and can be lifted or rotated in a vertical direction with respect to the base 22.

In this embodiment, the lock rod 21 is further provided with a driving portion, and the driving portion is used for driving the hanging portion 212 to lift or rotate along the vertical direction under the action of the external driving mechanism. As shown in fig. 8, the driving portion in this embodiment includes a nut 23, the corresponding lock rod 21 is provided with corresponding threads to cooperate with the nut 23, and the nut 23 is rotated by an external driving mechanism, so that the lock rod 21 correspondingly moves up or down to lock or unlock the lock rod with respect to the lock base 31. The external driving mechanism may be a linear pneumatic structure, such as a hydraulic driving, which is known in the art and will not be described in detail herein.

In another embodiment, the locking member 300 further includes an anti-loosening portion, the anti-loosening portion is disposed at the other end of the shaft body 211, and the anti-loosening portion is used for limiting the rotation of the hanging portion 212 relative to the lock seat 31 when the hanging portion 212 is located at the locking position of the lock seat 31, so as to prevent the lock rod 21 from rotating around the shaft body 211 and loosening on the lock seat 31 after rotating and locking at the locking position of the lock seat 31, thereby improving the safety of the battery pack 10 during the hanging process. In this embodiment, the anti-loosening portion is a nut sleeve 24 matched with the nut, and the inner edge of the nut sleeve 24 is matched with the outer edge of the nut 23, so that after the locking member 300 is locked and matched with the lock holder 31, the nut sleeve 24 can lock the nut 23 to ensure that the nut 23 cannot move up and down in the axial direction, and the nut 23 is not easy to rotate during locking, so as to prevent the threaded connection portion of the nut 23 and the lock rod 21 from loosening. In the locking process, the nut sleeve 24 is firstly unlocked so that the nut 23 can move, then the nut 23 is rotated to drive the lock rod 21 to move so that the hanging part 212 rotates to the locking position of the lock seat 31 to realize locking, and therefore the battery pack 10 is fixed on the electric vehicle 100, and finally the nut 23 is locked through the nut sleeve 24 so as to ensure that the nut 23 cannot rotate and loosen. In the unlocking process, the nut sleeve 24 is unlocked, then the nut 5 is rotated, the lock rod 21 is driven to move, the hanging part 212 is rotated to the unlocking position of the lock seat 31, and the unlocking is realized, so that the battery pack 10 is detached from the electric vehicle 100.

In other embodiments, the anti-loosening portion can also limit the rotation of the hanging portion 212 relative to the lock seat 31 by one of the matching modes of ratchet, pawl, expansion ball, clamping and meshing.

The floating unit 50 has a specific structure including an elastic member 1, a connecting member 2 and a limiting member 3, wherein the connecting member 2 is connected to the bracket body 30 and the car beam 20, one end of the connecting member 2 is fixedly connected to the bracket body 30, the other end of the connecting member 2 sequentially penetrates through the car beam 20 and the elastic member 1, and the limiting member 3 is disposed at the end of the other end of the connecting member 2. The radial section size of the limiting piece 3 is larger than the section size of the elastic piece 1 in the same direction, and the upper end and the lower end of the elastic piece 1 are abutted to the upper surface of the vehicle beam 20 and the lower surface of the limiting piece 3 so as to prevent the elastic piece 1 from being separated from the connecting piece 2, so that the bracket body 30 can float relative to the vehicle beam 20 along the vertical direction through the floating unit 50, and the vibration or the torque of the vehicle beam 20 is reduced to be transmitted to the bracket body 30 and transmitted to the battery pack 10 through the bracket body 30; meanwhile, the stability of the support body 30 to the vertical floating of the vehicle body is improved through the limiting pieces 3, and the support body 30 is prevented from being separated from the vehicle body.

In another embodiment of this embodiment, one end of the connecting member 2 is fixed to the vehicle beam 20, the other end of the connecting member 2 sequentially passes through the bracket body 30 and the elastic member 1, and the end of the other end of the connecting member 2 is also provided with the limiting member 3, so that the elastic member is limited between the bracket body 30 and the limiting member 3.

Since the battery pack 10 used in the electric vehicle 100, especially an electric truck, is bulky and heavy, the load-bearing capacity of the floating unit 50 is required to be high only by attaching the floating unit 50 to the body frame 20. In this embodiment, the elastic member 1 is a rectangular spring with a spring coefficient of 510Nm/mm, and the rectangular spring has a large bearing capacity, so that the bearing requirement on the battery pack 10 can be met; secondly, the rectangular spring has a strong fatigue resistance, and can meet the requirement of high-frequency elastic deformation of the rectangular spring caused by high-frequency turning jolt and the like in the use process after the battery pack 10 is installed on the electric vehicle 100.

In this embodiment, the connecting member 2 is a connecting rod extending vertically, a limiting member 3 is integrally formed at one end of the connecting rod, and the radial cross-sectional dimension of the limiting member 3 is larger than that of the rectangular spring, so that the connecting rod and the rectangular spring can be prevented from being separated from each other, and the two are matched to realize that the bracket body 30 floats relative to the vehicle beam 20.

In other embodiments, the limiting member 3 may be additionally disposed and fixed at one end of the connecting rod.

In a preferred embodiment, the car beam 20 is a hollow structure or a U-shaped structure, and the connecting member 2 can only penetrate through the bottom plate of the car beam 20 located below, so that the elastic member 1 can abut between the upper surface of the bottom plate of the car beam 20 and the limiting member 3 to achieve limiting and floating. Specifically, the vehicle beam 20 has a bottom plate extending along the horizontal direction, the bottom plate of the vehicle beam 20 is provided with a through hole for the connecting member 2 to movably penetrate through, one end of the connecting member 2 is fixed on the bracket body 30, the other end of the connecting member 2 penetrates through the through hole, and the upper end and the lower end of the elastic member 1 respectively abut against the upper surface of the bottom plate and the lower surface of the limiting member 3, so that the bracket body 30 can vertically float relative to the vehicle beam 20 through the floating unit 50. Through directly set up the through hole on the bottom plate of car roof beam 20 and supply connecting piece 2 to wear to establish for automobile body end simple structure need not to install extra accessory and realizes being connected with support body 30.

In another preferred embodiment, as shown in fig. 2, 3 and 4, a mounting plate 4 is disposed on a side portion of the car beam 20, the mounting plate 4 is a rectangular plate, the mounting plate 4 is welded to the car beam 20, and one end of the mounting plate 4 extends horizontally outward from the side portion of the car beam 20, a through hole is disposed on the mounting plate 4 along a vertical direction, the connecting member 2 is inserted into the through hole, and a lower end of the elastic member 1 is located on an upper surface of the mounting portion 4, that is, the mounting portion 4 is engaged with the elastic member 1 and the connecting member 2 to support the bracket body 30, and an upper end of the elastic member 1 abuts against a lower surface of the limiting member 3, so that the elastic member 1 is confined between the mounting plate 4 and the limiting member 3, the connecting member 2 is prevented from being disengaged from the elastic member 1 by the limiting member 3, and further prevented from being disengaged from the mounting plate 4, so as to ensure that the bracket body 30 and the car beam 20 can float vertically through the floating unit 50, on this basis, the mounting plate 4 is mounted on the side portion of the car beam 20, so that a bottom plate of the car beam 20 does not need to be perforated but intact, thereby ensuring the structural strength of the car beam 20.

In another preferred embodiment, as shown in fig. 3, 4 and 6, the side portion of the car beam 20 is provided with a fixing bracket 5, the fixing bracket 5 is a U-shaped member, two ends of the U-shaped member have fixing portions 51 fixed with the car beam 20 and a connecting portion 52 connected between the two fixing portions 51, the fixing portions 51 extend along the length direction a of the car beam 20 and are attached to the side portion of the car beam 20, and the fixing portions 51 are bolted to the car beam 20, so as to improve the connection stability of the fixing bracket 5 and the car beam 20 and facilitate maintenance and replacement. In other embodiments, other fixing methods such as welding may be adopted. The connecting portion 52 is a U-shaped bottom portion of the U-shaped member and is integrally formed with the fixing portions 51 at both ends of the U-shaped member, and a receiving area 53 is formed between the connecting portion 52 and the side portion of the vehicle body frame 20. The receiving area 53 is provided with a mounting plate 4, in this embodiment, the mounting plate 4 may not be directly fixed on the vehicle beam 20, and the mounting plate 4 is indirectly fixed on the side of the vehicle beam 20 by being fixed on the connecting portion 52. Due to the structural arrangement, the mounting plate 4 is indirectly and detachably arranged on the vehicle beam 20 through the fixing bracket 5, so that the mounting plate is convenient to maintain and replace when damaged; and the fixing bracket 5 can protect the mounting plate 4 by covering the connecting portion 52 on the outer side of the mounting plate 4. Meanwhile, the elastic element 1, the connecting element 2 and the limiting element 3 are located in the containing area 53, the containing area 53 provides a space to ensure that the floating unit 50 can float vertically and can prevent dust, sewage or sundries from entering the floating unit 50 along the horizontal direction, so that the floating unit 50 is prevented from being corroded by the dust or the sundries in the outdoor environment when being located on the outer side of the vehicle beam 20, the floating unit 50 is ensured, particularly, the elastic element 1 can work normally, and the support body 30 is flexibly connected with the vehicle beam 20 to replace the support body 30 to be rigidly connected with the vehicle beam 20.

In other embodiments, the end of the mounting plate 4 close to the vehicle beam is fixed to the vehicle beam 20, and the end far away from the vehicle beam 20 is fixedly connected to the inner wall of the accommodating area 53 of the fixing bracket 5, that is, the mounting plate 4 extends to the inner wall of the accommodating area 53 toward the outside of the vehicle beam 20, that is, one end of the mounting plate 4 is fixedly connected to the vehicle beam 20, and the other end of the mounting plate 4 is connected to the vehicle beam 20 through the fixing portion 51 of the fixing bracket 5, so as to avoid that the mounting plate 4 is a cantilever structure with one end stressed, thereby improving the bearing capacity of the mounting plate 4, and on this basis, the capacity of the battery pack 10 hooked on the bracket body 30 can be correspondingly increased, which is not described in more detail.

Furthermore, a cover plate 54 is arranged above the fixed support 5, the cover plate 54 is arranged along the horizontal direction, the cover is arranged above the containing area 53 and is respectively attached to the outer side of the vehicle beam 20 and the fixed support 5 to enable the upper end of the containing area 53 to be sealed through the cover plate 54, the lower end of the containing area 53 is sealed through the mounting plate 4, and therefore the sealing performance of the containing area 53 is improved, dust, sewage or sundries are prevented from entering the containing area 53 vertically through the cover plate 54, the situation that the elastic part 1 is clamped by the sundries and cannot rebound vertically is avoided, the floating unit 50 can work normally is guaranteed, the elastic part 1 is prevented from being corroded by the sewage to shorten the service life of the elastic part 1, and the economical efficiency of the floating unit 50 in the actual use process is improved. In a specific implementation, the cover plate 54 has a size not smaller than the size of the receiving area 53 to cover at least the receiving area 53.

In this embodiment, the floating unit 50 further includes a limiting plate 6, the limiting plate 6 is a plate structure arranged in a horizontal direction, a circular hole is formed in the limiting plate 6, the connecting piece 2 penetrates through the circular hole, and the circular hole of the limiting plate 6 is smaller than the radial cross section of the limiting piece 3 to prevent the limiting plate 6 from being separated. The limiting member 3 is located above the limiting plate 6, and the limiting plate 6 is located between the limiting member 3 and the elastic member 1, that is, the upper end of the elastic member 1 abuts against the lower surface of the limiting plate 6, and the lower end of the elastic member 1 abuts against the upper surface of the mounting plate 4, so that the contact area between the limiting plate 6 and the upper end of the elastic member 1 is increased, and the stress of the elastic member 1 is uniform when the body of the electric vehicle 100 is stressed due to jolts and the like. Meanwhile, the contact area is increased, so that the upward elastic force applied by the elastic part 1 can be diffused to the limiting plate 6, that is, the limiting performance of the elastic part 1 is improved through the limiting plate 6, so that the floating unit 50 is firmer, and the reusability of the floating unit 50 is improved.

Meanwhile, in order to improve the influence of the torque or the vibration of the vehicle beam 20 on the bracket body 30 and the battery pack 10, the floating units 50 in this embodiment are provided in a plurality, two adjacent floating units 50 are arranged side by side and form a group of floating assemblies 7, further, there are two limiting parts 3 in the two floating units 50, two elastic parts 1 and two connecting parts 2, two through holes arranged side by side are formed on the mounting plate 4 corresponding to the floating assemblies 7, the floating assemblies 7 are correspondingly accommodated in the accommodating areas 53, and the same as the mounting plate 4, the floating units 50 of the same group of floating assemblies 7 are connected to the same limiting plate 6 together, two round holes arranged side by side are formed on the same limiting plate 6 so as to facilitate the penetration of the connecting part 2, so that the problem of installation inconvenience caused by separately arranging the mounting plate 4 and the limiting plate 6 for the two floating units 50 of the same group of floating assemblies 7 and separately arranging the fixing bracket 5 and the cover plate 54 for dust prevention is solved, and the same limiting plate 6 can reduce the installation steps, thereby improving the installation efficiency of the floating units 50.

It can be understood that, by increasing the floating units 50, the stress on the bracket body 30 is more uniform, and increasing the number of the floating units 50 reduces the torque or vibration of the car beam 20 to be transmitted to the bracket body 30 and then to the battery pack 10, thereby improving the stability and reliability of the bracket body 30 in hooking the battery pack 10.

In this embodiment, there are two vehicle beams 20, and each vehicle beam 20 is provided with a plurality of floating assemblies 7, for example, 5 floating assemblies 7, spaced apart along the length direction a of the vehicle beam 20, but other number of floating assemblies 7 may also be selected, which aims to improve the connection stability between the bracket body 30 and the vehicle beam 20, and slow down the vibration or torque transmission of the vehicle beam 20 to the bracket body 30 on the basis of the battery pack 10 being connected through the bracket body 30 in a switching manner.

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

Claims

1. The utility model provides a quick-change support, its characterized in that includes the support body, the support body is equipped with the locking mechanism who sets up along automobile body length direction interval at least, locking mechanism is used for along vertical direction through the rotatory locking mode locking of T type or unblock battery package, the support body pass through floating unit connect in the automobile body makes the support body is relative in vertical the automobile body can float.

2. The quick-change bracket according to claim 1, wherein the locking mechanism includes a lock holder for engaging with a locking member on the battery pack and for locking and unlocking the battery pack and the bracket body by T-shaped rotary locking.

3. The quick-change holder according to claim 2, wherein the lock holder has a connecting channel extending in the vertical direction, and a catching portion provided adjacent to the connecting channel, the connecting channel being adapted to allow the lock member to move upward in the vertical direction to a position corresponding to the catching portion, the lock member being locked to the catching portion by rotation.

4. The quick-change holder according to claim 3, characterized in that the catch is further provided with a guide surface which is arranged obliquely upwards or obliquely downwards from the connecting channel.

5. The quick-change holder according to claim 3, characterized in that the connecting channel is matched to the shape of the locking element.

6. The quick-change bracket according to any one of claims 1 to 5, characterized in that the vehicle body has a vehicle beam extending in the length direction of the vehicle body, the bracket body is located below the vehicle beam, and the floating unit is arranged above the bracket body.

7. The quick-change bracket according to claim 6, wherein the floating unit comprises an elastic member, a connecting member and a limiting member, the connecting member is respectively connected with the bracket body and the vehicle body, one end of the connecting member is fixed to one of the bracket body and the vehicle body, the other end of the connecting member is sequentially inserted through the other of the bracket body and the vehicle body and the elastic member, and the end of the other end of the connecting member is provided with the limiting member so that the elastic member is limited between the bracket body or the vehicle body and the limiting member.

8. The quick-change bracket according to claim 7, wherein the bottom plate of the vehicle beam is provided with a through hole for the movable penetration of the connecting member, the lower end of the elastic member abuts against the bottom plate, and the upper end of the elastic member abuts against the limiting member.

9. The quick-change bracket according to claim 7, wherein a mounting plate is provided at a side portion of the vehicle beam, the mounting plate extends horizontally outward from the side portion of the vehicle beam, a through hole is provided on the mounting plate for the connecting member to movably pass through, a lower end of the elastic member abuts against the mounting plate, and an upper end of the elastic member abuts against the limiting member.

10. The quick-change bracket according to claim 9, wherein the side portion of the vehicle beam is further provided with a fixing bracket, the fixing bracket is provided with a fixing portion fixed with the vehicle beam and a connecting portion, a receiving area is formed between the connecting portion and the side portion of the vehicle beam for receiving the mounting plate, and the mounting plate is fixed on the fixing bracket.

11. The quick-change holder according to claim 10, characterized in that a cover plate is provided above the fixing holder, which cover plate covers at least the receiving region.

12. The quick-change holder according to claim 7, wherein the floating unit further comprises a limiting plate disposed between the elastic member and the limiting member.

13. The quick-change holder according to claim 12, wherein there are a plurality of floating units, two adjacent floating units forming a group of floating assemblies, the floating units of the same group of floating assemblies being connected to the same limiting plate in common.

14. The quick-change carrier according to claim 13, wherein there are two of said vehicle beams, and a plurality of said float assemblies are provided on each of said vehicle beams at spaced intervals along the length of said vehicle body for attachment to said carrier body.

15. A replacement vehicle, characterized in that the replacement vehicle comprises a quick-change bracket according to any one of claims 1 to 14.

16. The battery replacement vehicle of claim 15, wherein the battery replacement vehicle is an electric truck.