CN219096472U

CN219096472U - Vehicle for replacing electric vehicle

Info

Publication number: CN219096472U
Application number: CN202222808781.XU
Authority: CN
Inventors: 张建平; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-10-24
Publication date: 2023-05-30
Anticipated expiration: 2032-10-24
Also published as: CN219007567U; CN116118452A; CN218805182U; CN218558547U; CN116118454A; CN218558548U; CN116118457A; CN218577494U; CN116252607A; CN116118453A; CN116118469A; CN116353320A; CN116118455A; CN218577493U; CN116118461A; CN218558546U; CN218577489U; CN218577492U; CN116353319A; CN219096474U

Abstract

The utility model provides a battery-powered vehicle, comprising: the battery pack comprises a plurality of locking pieces matched with the locking mechanisms, and the locking pieces are matched with the locking mechanisms in a bead expansion locking mode along the vertical direction, so that the battery pack is connected to the bottom of the quick-change bracket in the bead expansion locking mode. According to the battery pack quick-change bracket, the locking piece is matched with the locking mechanism in a bead expansion locking mode, and the battery pack is vertically hung to the quick-change bracket, so that the battery pack is only lifted to a preset height below the quick-change bracket in the vertical hanging connection mode by the battery exchange equipment, the positioning mode of battery pack installation is simplified, the battery pack is more firmly connected with the quick-change bracket, the battery pack installation time is saved, and the operation cost of battery pack installation or disassembly is reduced.

Description

Vehicle for replacing electric vehicle

The present application claims priority from chinese patent application 2022108378041, whose application date is 2022, month 07, and 15. The present application refers to the entirety of the above-mentioned chinese patent application.

Technical Field

The utility model relates to the technical field of vehicle power conversion, in particular to a power conversion vehicle.

Background

The current electric vehicle is popular with consumers, and needs to be charged after the electric energy is used, and the current battery technology and the charging technology limit that the electric vehicle needs to be fully charged takes a long time, which is not as simple and rapid as the direct oiling of the automobile. Therefore, in order to reduce the waiting time of the user, it is an effective means to replace the battery when the power of the battery-change vehicle is rapidly exhausted. At present, with the increasing market share and the frequency of use of battery-powered vehicles, in addition to small vehicles using storage batteries as driving energy, large vehicles (e.g., heavy trucks and light trucks) are beginning to be widely used as battery quick-change technologies.

In the process of disassembling and assembling the whole battery pack on the battery replacing vehicle, due to the large volume of the whole battery pack, the corresponding locking mechanisms are more in number, so that the difficulty of simultaneously locking and unlocking all the locking mechanisms is relatively high, and the bearing requirement and the precision requirement on the battery replacing equipment are high.

Disclosure of Invention

The utility model aims to overcome at least one of the defects of the prior art and provides a power conversion vehicle.

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

a battery-powered vehicle comprising:

the vehicle body is provided with a plurality of wheels,

a quick-change bracket connected with the vehicle body,

a plurality of locking mechanisms which are connected with the two sides of the quick-change bracket along the width direction and/or the two sides of the length direction of the vehicle body and are arranged at intervals,

the battery pack is provided with a plurality of locking pieces matched with the locking mechanisms, and the locking pieces are matched with the locking mechanisms in a bead expansion locking mode along the vertical direction, so that the battery pack is connected to the bottom of the quick-change bracket in the bead expansion locking mode.

This trade locking piece of electric vehicle and locking mechanism cooperation and along vertical with battery package be connected to quick change support, vertical connected mode makes the battery package of just need be lifted to the predetermined height below the quick change support along vertical the battery package can, the locate mode of battery package installation has been simplified, simultaneously, the location of battery package along automobile body X to (length direction) and/or Y to (width direction) when realizing battery package connection through the locking mechanism that length direction and/or width direction interval set up, the battery package is lifted in place by the battery package and is fixed after being connected by the locking mechanism that is located automobile body lateral part with the locking piece, that is to say that the battery package is X to and/or Y is spacing also synchronous realization after connecting, the stability of battery package after having promoted after connecting, on the basis that the battery package was installed is simplified to the connected mode, the structure of battery package at X to the limit that need additionally set up the spacing piece after simplifying the battery package fixed connection, the battery package installation time has been saved and the running cost of battery package installation or dismantlement has been reduced.

In addition, the battery pack is vertically locked or unlocked along the vertical direction by the locking piece and the locking mechanism through the expanding bead locking mode, the operation of the expanding bead locking mode is simple, the locking reliability is high, compared with the traditional clamping locking mode, the expanding bead locking is beneficial to reducing the abrasion between the locking piece and the locking mechanism, and the reliability and the durability of the structure are improved.

Preferably, the structure of the expanding bead locking mode comprises the locking piece and the locking mechanism, the locking piece comprises expanding beads, the locking mechanism comprises a lock seat, or the locking piece comprises a lock seat, and the locking mechanism comprises expanding beads; the expansion beads are detachably connected with the lock seats to independently lock the battery packs on the quick-change bracket.

According to the technical scheme, the expanding bead locking between the battery pack and the vehicle for replacing the battery pack is realized through the matching between the expanding bead and the lock seat, so that the reliability and the durability of the locking are improved.

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

In the technical scheme, one of the expansion bead and the lock seat is arranged on the battery pack, and the other is arranged on the quick-change bracket on the battery change vehicle, so that the battery pack is connected with the battery change vehicle through the cooperation of the expansion bead and the lock seat.

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

The structure is used for guaranteeing the stability of connection of the battery pack and the vehicle.

Preferably, the expanding bead or the lock seat is connected to the battery pack in a floating mode.

In the technical scheme, the floating connection can reduce the torque or vibration of the vehicle when the vehicle is subjected to steering torsion or jolt and transmit the torque or vibration to the quick-change bracket or the vehicle beam, so that the influence of the torque or vibration on the quick-change bracket or the vehicle beam is reduced.

Preferably, the expanding beads or the lock seat are connected to the quick-change bracket in a floating manner.

The structure is provided, the floating connection can reduce the torque or vibration of the vehicle when the vehicle is subjected to steering torsion or jolt and transmit the torque or vibration to the quick-change bracket, so that the influence of the torque or vibration on the quick-change bracket is reduced.

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

The structure is provided, the locking ball is matched with the lock seat through the movement of the locking ball relative to the connecting column, and then the locking and unlocking of the expansion bead and the lock seat are realized.

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

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

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

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

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

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

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

Above-mentioned structure sets up, prevents changeing the anti-return structure and has avoided rising pearl and lock seat to produce relative rotation when cooperating, and then has guaranteed the stability that battery package and trading car are connected.

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

Above-mentioned structure sets up, realizes the stability after battery package and the vehicle connection of trading through preventing changeing the stopping structure, avoids locking mechanism and the unexpected unblock of locking piece.

Preferably, a plurality of locking pieces are arranged in at least an edge area of the battery pack, and the plurality of locking pieces are arranged in the edge area of the battery pack along the length direction and/or the width direction of the vehicle body of the battery-powered vehicle so as to lock or unlock the battery pack at the bottom of the battery-powered vehicle.

Among the above-mentioned technical scheme, set up the locking piece in the marginal region of battery package and then lock or unblock the battery package in the bottom of trading electric vehicle, set up in the marginal region and be favorable to guaranteeing the stability that battery package and trading electric vehicle are connected, and then guarantee the safety and stability that trading electric vehicle was gone.

Preferably, a plurality of the locking members are further provided at a middle region of each of the battery packs.

In the technical scheme, the locking piece is further arranged in the middle area of the battery pack, so that the stability of connection between the battery pack and the vehicle for replacing the battery pack is further guaranteed.

Preferably, when the number of the locking members in the intermediate region is plural, the plurality of locking members are distributed in the longitudinal direction or the width direction of the vehicle body.

According to the technical scheme, the plurality of locking pieces are distributed along the length direction or the width direction of the vehicle body, so that the connection stability of the middle area of the battery pack and the vehicle replacement is ensured.

Preferably, the locking member located in the middle area is connected to the bottom of the battery-changing vehicle by being connected to the bottom of the battery-changing vehicle in the height direction of the battery-changing vehicle.

Among the above-mentioned technical scheme, through the direction of height articulates the battery package along trading the electric vehicle, reduce the lateral space occupation to the battery package middle zone when articulating the battery package through the locking piece, improve the convenience of stores pylon battery package.

Preferably, a plurality of locking pieces are arranged on the side surface of the battery pack, or a plurality of locking pieces are arranged on the top surface of the battery pack.

When the locking piece is arranged on the top surface of the battery pack, namely, the locking piece is arranged at the position, extending inwards by a preset distance, of the top edge of the battery pack along the width and/or length direction of the battery pack, and the locking position of the locking mechanism and the locking piece connected to the quick-change bracket is positioned on the top surface of the battery pack, so that the width of the battery pack cannot be increased due to the locking piece; secondly, the locking piece and the locking mechanism are aligned directly, so that the battery pack can be conveniently replaced by the battery replacement equipment; thirdly, the size of the quick-change bracket is reduced to be possible, which is beneficial to the size control of the quick-change bracket and the battery pack; in addition, the distance between the locking mechanisms is smaller, the connection precision of the battery packs is easier to ensure, the smooth connection of the battery packs is more facilitated, and the electricity conversion efficiency is improved.

When the locking piece is arranged on the side face of the battery pack, the space in the height direction of the battery pack is not occupied, and the height between the bottom of the vehicle body of the battery-powered vehicle and the ground is guaranteed. In addition, the locking position is arranged on the side part, so that the operation space is larger, and the reliable locking and unlocking of the battery pack are conveniently realized. The locking piece not only can be arranged on two sides of the length direction of the battery pack, but also can be arranged on two sides of the width direction of the battery pack, or can be arranged at the same time, the setting position is flexible, and the locking piece can be adjusted according to the actual locking or arrangement mode. In addition, when the locking piece is arranged on the side face of the battery pack, the locking piece and the locking mechanism can be matched to realize the positioning of the battery pack along the X direction (length direction) and/or the Y direction (width direction) of the vehicle body, so that the battery pack is prevented from moving after being connected to the vehicle.

When setting up the top and the side of battery package with the locking piece simultaneously, can play the limiting displacement to the battery package better, the locking is more reliable.

Preferably, the quick-change bracket is fixedly arranged on a beam of a vehicle body of the battery-powered vehicle, the quick-change bracket is provided with a containing area with a downward opening, and each containing area is internally provided with a plurality of locking mechanisms so as to realize locking and unlocking of the battery pack in the containing area relative to the quick-change bracket in a bead expansion locking mode.

Among the above-mentioned technical scheme, hold the battery package through holding the district and make the battery package have independent installation space and carry out spacingly to the X to and the Y of battery package through independent installation space, set up the locking mechanism of a plurality of pearl locking modes that rise in the holding district for the battery package is for locking and unblock convenient and fast more of quick change support.

Preferably, the quick-change bracket comprises a bracket body connected with the vehicle body, wherein a plurality of locking mechanisms are directly connected with the bracket body or connected with the bracket body through a transfer bracket, the transfer bracket extends downwards from the bracket body, and the transfer bracket and the bracket body are in an integrated structure or the transfer bracket is detachably connected with the bracket body;

or, the quick-change bracket is formed by fixedly connecting a plurality of cross beams and a plurality of longitudinal beams, and a plurality of locking pieces are fixedly arranged on any side surface of the cross beams or the longitudinal beams, so that the locking direction of the expanding bead locking mode is consistent with the height direction of the battery-powered vehicle.

Above-mentioned structure sets up, is used for matching the automobile body in order to promote the stability of quick change support through the support body, and locking mechanism both can direct connection on the support body also can be connected on the support body through the switching frame for guarantee that the battery package is along vertical articulates in the quick change support, further along vertical connection in the automobile body. When the locking mechanism is directly connected with the bracket body, the quick-change bracket has simple structure and is easy to process; when the switching frame is used, the downward extending switching frame can play a certain limiting role on the battery pack, and then the stability of the battery pack after being hung can be improved. When quick change support is formed by a plurality of crossbeams and a plurality of longeron fixed connection, the junction of crossbeam and longeron is formed with a plurality of clearances, and the locking mechanism setting of pearl locking mode that rises can increase the quantity of locking mechanism in the side of crossbeam or longeron, and then improves the stability after the battery package articulates to can also carry out spacingly to the battery package in X direction or Y direction when being connected with the battery package through locking mechanism, increase the locking mechanism and just increase the spacing quantity to the battery package, be favorable to improving the positioning accuracy after the battery package articulates.

Preferably, the transfer frame forms a receiving area for surrounding the battery pack, and at least part of the battery pack is surrounded in the receiving area along the vertical direction.

Above-mentioned structure sets up, forms the accommodation area through the switching frame, in the direction of height, accommodates the district and surrounds battery package at least partially in the accommodation area, is located the part battery package that holds the district and carries out spacingly through the accommodation area all around, improves the battery package and articulates the connection stability behind the quick change support.

Preferably, the locking piece is arranged at a position where the side surface of the battery pack extends downwards from the top surface of the battery pack by a preset distance;

the bottom of switching frame is equipped with the mounting groove, locking mechanism set up in the mounting groove.

Above-mentioned structure sets up, sets up the locking piece in battery package side preset distance department from the top surface, cooperates with the switching frame spacing to the battery package, can weaken the battery package and rock (for example when the vehicle is accelerated or emergency braking) to the influence of lock point, is favorable to guaranteeing the reliability of locking. Through setting up locking mechanism in the mounting groove of adapter bottom, can promote the reliability and the steadiness fixed to locking mechanism to be favorable to strengthening the reliability and the steadiness of locking, can reduce the invasion of locking mechanism to horizontal space like this moreover, the structure is compacter.

Preferably, a guiding mechanism is arranged between the switching frame and the battery pack, the guiding mechanism comprises a guiding block and a guiding surface, the guiding block is arranged on the side surface of the battery pack, and the switching frame faces to one side surface of the battery pack to form the guiding surface.

According to the structure, the guide surface for guiding the battery pack to be hung along the vertical direction is formed on the surface, facing the battery pack, of the transfer frame, so that the hanging precision of the battery pack when the battery pack is hung on the transfer frame is improved, the success rate of hanging the battery pack is improved, the hanging speed of the battery pack is improved, and in addition, the transverse size is reduced; the side of the battery pack is provided with the guide block which is used for acting the same as the guide surface, and the guide block and the guide surface are used for guiding the battery pack when the battery pack is hung on the quick-change bracket, so that the battery pack is hung more smoothly.

Preferably, a buffer mechanism is arranged at the side surface of the battery pack corresponding to the bottom end of the transfer frame, the buffer mechanism is arranged below the locking piece, and the buffer mechanism comprises a buffer piece capable of elastically deforming in the vertical direction.

Above-mentioned structure sets up, slows down through setting up buffer gear that the switching is put up between with the battery package and locking mechanism and locking piece between the impact when the battery package articulates, in addition, buffer gear also can slow down the battery package and articulate the back and travel along with the vehicle in-process rocking, is favorable to the reliability and the stability of locking. The buffer mechanism is arranged corresponding to the bottom end of the transfer frame, so that the buffer mechanism does not occupy extra transverse space. In addition, the buffer mechanism can be continuously arranged around the side face of the battery pack, and can also be intermittently arranged, and when the buffer mechanism is continuously arranged around the side face of the battery pack, an interference preventing hole for preventing the locking mechanism and the locking piece from being interfered should be reserved.

Preferably, the bottom end of the switching frame points to the top surface of the battery pack, and the switching frame is correspondingly arranged with the locking piece arranged on the top surface of the battery pack.

The structure is arranged, and the locking part and the switching frame are arranged on the top surface of the battery pack, so that the locking position is located on the top surface of the battery pack. Preferably, the plurality of locking mechanisms are connected to two sides of the quick-change bracket along the length direction (X direction) of the vehicle body, and the locking mechanisms can be arranged in the length direction of the vehicle body girder and are more reliable when the size of the quick-change bracket in the width direction of the vehicle is controlled.

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

Above-mentioned structure sets up, and locking mechanism sets up in the marginal area of battery package accommodation area along automobile body length direction, and this locking mechanism is when articulating with the battery package, holds the district and holds the battery package and come spacing battery package in this direction through the locking mechanism along automobile body length direction, and likewise, locking mechanism sets up in the marginal area of battery package accommodation area along automobile body width direction also in order to limit the position of battery package in this direction when battery package articulates, promotes the connection stability of battery package when omitting the locating part.

Preferably, a plurality of the locking mechanisms are further provided in a middle region of the battery pack accommodating region.

Above-mentioned structure sets up, and the middle zone of battery package holding area is provided with a plurality of locking mechanisms equally, improves the stability after battery package and quick change support are articulated through the mode that increases locking mechanism.

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

Above-mentioned structure sets up, and when locking mechanism was a plurality of, joint strength was high, connects reliably, can articulate the battery package better.

Preferably, the battery pack is provided with a protruding part which extends upwards from the side surface of the vehicle body and protrudes out of the bottom of the vehicle body, and the bracket body is provided with an avoidance hole or an avoidance cavity matched with the protruding part.

Above-mentioned structure sets up, and the bellying is used for increasing the capacity of battery package, effectively utilizes the space in the direction of height through upwards extending to increase the inner space of battery package, and the support body corresponds the bellying setting and dodges the hole or dodges the chamber in order to avoid the interference that probably takes place between support body and the battery package.

Preferably, the vehicle body comprises two side-by-side and spaced-apart vehicle body stringers, and the protruding portion is formed on the outer side of the two vehicle body stringers and/or between the two vehicle body stringers.

The structure is arranged, so that the height space of the side face of the vehicle beam can be fully utilized, the battery capacity is increased, the structure is also suitable for a battery replacing vehicle with a lower chassis, and the application range of the battery pack is enlarged.

Preferably, a battery end electric connector is arranged at the top of the battery pack, a vehicle end electric connector is arranged at the corresponding position of the bracket body, and the battery end electric connector is in plug connection with the vehicle end electric connector in the vertical direction.

Above-mentioned structure sets up, through pegging graft battery end electric connector and car end electric connector along vertical, has also realized the electric connection when the battery package is along vertical articulated, also need not complicated mechanical structure moreover, and the electric connection is more reliable, has also promoted the conversion efficiency.

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

Among the above-mentioned technical scheme, the battery package of electric truck is bulky, heavy, more loaded down with trivial details and complicacy when being connected with electric truck's automobile body longeron for the required power conversion space in the power conversion in-process is bigger, and electric truck makes self moment of torsion bigger when distorting because of loading goods, is bigger to the influence of battery package promptly. Therefore, the battery pack is hung vertically, the power exchanging step is reduced, the power exchanging mode is simplified to improve the power exchanging efficiency, and the connection stability of the battery pack is effectively improved through the quick-change bracket.

The utility model has the positive progress effects that: according to the battery pack quick-change device, the battery pack is vertically locked or unlocked through the bead expansion locking mode, the battery pack is hung to the bottom of the quick-change bracket, the locking piece is matched with the locking mechanism, the battery pack is vertically hung to the quick-change bracket, the connection mode of vertical hanging enables the battery pack to be lifted to a preset height below the quick-change bracket only along the vertical direction, the positioning mode of battery pack installation is simplified, the battery pack replacement efficiency is improved, meanwhile, the battery pack is hung through the locking mechanism arranged at intervals in the length direction and/or the width direction, the battery pack is positioned along the X direction (the length direction) and/or the Y direction (the width direction) of the vehicle body, after the battery pack is lifted in place by the battery pack replacement device, the locking mechanism positioned at the side portion of the vehicle body is hung with the locking piece, namely, the battery pack is synchronously limited in the X direction and/or the Y direction after the battery pack is hung, the stability of the battery pack after the battery pack is hung is improved, the battery pack is simplified to be limited in the X direction and/or the Y direction on the basis of simplifying the battery pack installation of the hanging connection mode, the battery pack limit structure is simplified, the additional battery pack installation time is saved after the battery pack is fixedly connected, and the battery pack installation cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a battery-powered vehicle according to embodiment 1 of the present utility model.

Fig. 2 is a schematic view of a quick-change bracket and a battery pack according to embodiment 1 of the present utility model.

Fig. 3 is a schematic diagram illustrating a positional relationship of a locking mechanism of a quick-change bracket according to embodiment 1 of the present utility model.

Fig. 4 is a schematic diagram showing the positional relationship of the locking member of the battery pack of embodiment 1 of the present utility model.

FIG. 5 is an exploded view of the battery pack and quick-change stand according to embodiment 1 of the present utility model

Fig. 6 is an exploded view of the structure of the adapter bracket and the bracket body according to embodiment 2 of the present utility model.

Fig. 7 is a schematic view of a receiving area of a transfer rack according to embodiment 2 of the present utility model.

Fig. 8 is a schematic diagram of the positional relationship between the battery side electrical connector and the vehicle side electrical connector according to embodiment 1 of the present utility model.

Fig. 9 is a schematic diagram illustrating a connection state between a quick-change bracket and a battery pack according to embodiment 3 of the present utility model.

Fig. 10 is a schematic structural view of an expanded bead locking structure according to an embodiment of the utility model.

Fig. 11 is a cross-sectional view of an expanded bead locking structure according to an embodiment of the present utility model.

Reference numerals illustrate:

vehicle 100 for replacing electric vehicle

Vehicle body 10

Quick change stand 20

Body rail 30

Locking mechanism 40

Connection post 71

Locking hole 711

Limiting step 712 of connecting column

Locking ball 72

Drive bolt 73

Drive ball 74

Mounting sleeve 75

First limit step 751

Second spacing step 752

Lock seat 8

Locking chamber 82

Locking member 50

Battery pack 60

Buffer mechanism 80

Transfer frame 1

Bracket body 2

Accommodation area 3

Battery box 4

Flange 5

Guide surface 6

Avoidance hole 11

Battery terminal electrical connector 12

Vehicle end electrical connector 13

Longitudinal direction X of longitudinal beam of vehicle body

Width direction Y of vehicle body longitudinal beam

Detailed Description

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

Example 1

The present embodiment provides a battery-powered vehicle 100, as shown in fig. 1, the battery-powered vehicle 100 includes: the vehicle body 10, the quick-change bracket 20 and the battery pack 60, wherein the quick-change bracket 20 is connected to the vehicle body 10, further, the vehicle body 10 of the battery-change vehicle 100 is provided with a vehicle beam, for example, the vehicle beam is two vehicle body longitudinal beams 30 which are arranged in parallel along the front-rear direction in the embodiment, and is used for connecting main components of the battery-change vehicle 100, such as hanging and wheels, and the like, the quick-change bracket 20 is also arranged below the two vehicle body longitudinal beams 30, and in addition, the battery pack 60 is hung on the lower surface of the quick-change bracket 20 along the vertical direction so that the battery pack 60 can be quickly replaced from the lower side of the battery-change vehicle 100, so that the battery pack 60 can be replaced more quickly and conveniently. In this embodiment, the quick-change bracket 20 is a frame structure formed by welding profiles, and each locking mechanism 40 is disposed at the lower surface of the quick-change bracket 20 and is used for locking connection with the locking member 50 of the battery pack 60 in the vertical direction in a bead expansion locking manner, so that the battery pack 60 is located at the bottom of the quick-change bracket 20 and is connected or disconnected with respect to the quick-change bracket 20, thereby achieving the purpose of battery replacement. For the material of the quick-change bracket 20, other materials, such as a plate and a square tube, can be selected according to practical requirements, and the material is not limited to the profile.

Further, by arranging the battery pack 60 at the bottom of the quick-change bracket 20 and hanging the battery pack 60, the battery pack 60 is lifted to a predetermined height by a battery changing device (not shown) when the battery pack 60 is changed by the battery changing vehicle 100, so that the battery changing step of the battery changing vehicle 100 is greatly simplified, the battery changing efficiency is improved, and the connection stability of the battery pack 60 and the quick-change bracket 20 is ensured.

In addition, the plurality of locking mechanisms 40 are arranged along two sides of the width direction and/or the length direction of the vehicle body longitudinal beam 30, and are arranged at intervals, the locking pieces 50 are vertically arranged on the side face of the battery pack 60 and are used for being matched with the locking mechanisms 40, when the locking mechanisms 40 are arranged along the width direction of the vehicle body longitudinal beam 30, namely, the locking mechanisms 40 are arranged in the Y direction, vertical hanging connection can be achieved between the locking mechanisms 40 and the locking pieces 50 of the battery pack 60, in the Y direction, the locking pieces 50 on two sides of the battery pack 60 are limited by the locking mechanisms 40, that is, the battery pack 60 is limited by the quick-change bracket 20 in the Y direction, that is, Y-direction limiting of the battery pack 60 after hanging is achieved synchronously, and stability of the battery pack 60 after hanging is improved.

It can be appreciated that when the locking mechanism 40 is disposed along the length direction of the body longitudinal beam 30, that is, the X-direction is set up to the locking mechanism 40, the battery pack 60 can be limited by the quick-change bracket 20 in the X-direction, and the battery pack 60 is positioned along the X-direction and/or the Y-direction while the battery pack 60 is hung by the locking mechanism 40 disposed along the length direction and/or the width direction of the body longitudinal beam 30, so that the battery pack 60 is lifted up by the battery changer to be in place, the locking mechanism 40 located at the side of the body longitudinal beam 30 is hung to be fixed with the locking member 50, and meanwhile, the limiting of the battery pack 60 in the X-direction and/or the Y-direction is synchronously implemented after the battery pack 60 is hung.

As shown in fig. 2-9 and 10, the battery pack 60 in the present embodiment is vertically connected to the quick-change bracket 20 of the electric vehicle 100 by means of a bead-expanding locking method. Specifically, the battery pack 60 is hung on the quick-change bracket 20 in a bead expansion locking mode, and the bead expansion locking mode is adopted, so that the operation is simple and the locking reliability is high.

As shown in fig. 2-9, the structure of the bead lock mode includes a lock member 50 and a lock mechanism 40. The locking piece 50 comprises an expansion bead, and the locking mechanism 40 comprises a lock seat 8; alternatively, the locking member 50 includes the lock base 8, the locking mechanism 40 includes an expansion bead, and the battery pack 60 is independently locked to the quick-change bracket 20 of the battery-powered vehicle through detachable connection between the expansion bead and the lock base 8, which is beneficial to improving the reliability and durability of locking.

One of the expansion beads or the lock bases 8 is provided on the battery pack 60, and the other of the expansion beads or the lock bases 8 is provided on the electric exchanging vehicle 100. In this embodiment, all the expansion beads are disposed on the battery pack 60, and all the lock bases 8 are disposed on the quick-change bracket 20.

In other alternative embodiments, all the expansion beads may be provided on the quick-change bracket 20 and all the lock bases 8 may be provided on the battery pack 60. Alternatively, part of the expanded beads may be disposed on the battery pack 60, a part of the lock bases 8 corresponding to the expanded beads may be disposed on the quick-change bracket 20, another part of the expanded beads may be disposed on the quick-change bracket 20, and another part of the lock bases 8 corresponding to the expanded beads may be disposed on the quick-change bracket 20.

It should be noted that: the structure of the locking member 50 and the lock base 8 shown in fig. 2 to 9 is not identical to the structure of the locking member 50 and the lock base 8 shown in fig. 10 and 11, the structure of the lock base 8 shown in fig. 10 is not identical to the structure of the lock base 8 shown in fig. 3 and 4, and fig. 3, 4 and 10 are only for illustrating the specific structures of the locking member 50 and the lock base 8, so as to facilitate the explanation of the locking device in this embodiment.

As shown in fig. 5, in the battery pack 60 of the present embodiment, the locking member 50 is disposed on the side of the battery pack 60 to avoid damage to the battery module inside the battery pack 60.

In other alternative embodiments, the locking member 50 may be disposed at a middle position of the battery pack 60, that is, the locking member 50 may be disposed at a middle position of the battery pack 60, so as to ensure the stability of the connection of the battery pack 60 with the electric vehicle 100.

In other alternative embodiments, the locking member 50 may also penetrate through the battery pack 60 from bottom to top, so as to enable the lower end of the locking member 50 to be matched with the battery exchange device, and the upper end of the locking member 50 to be matched with the locking mechanism 40, so as to enable the locking and unlocking of the battery pack 60.

In other alternative embodiments, when the lock base 8 is disposed on the battery pack 60, the lock base 8 may be disposed on both sides of the battery pack 60 or may be disposed in the middle of the battery pack 60. Similarly, the locking mechanism 40 penetrates through the battery pack 60 from bottom to top, so that the lower end of the locking mechanism 40 is matched with the battery replacement device, the upper end of the locking mechanism 40 is matched with the locking piece 50, and locking and unlocking of the battery pack 60 are further achieved.

Further, the locking member 50 is floatingly connected to the battery pack 60, and the lock base 8 is floatingly connected to the quick-change bracket 20. The floating connection reduces the transmission of torque or vibration to the quick-change bracket 20 when the electric vehicle 100 is subjected to steering torque or jolt, thereby reducing the impact of torque or vibration on the quick-change bracket 20.

In other alternative embodiments, the lock base 8 may be connected to the battery pack 60 in a floating manner, and the locking member 50 may be connected to the battery pack 60 in a floating manner.

In other alternative embodiments, the locking member 50 or the locking seat 8 can also be directly and floatingly connected to the quick-change bracket 20 of the electric vehicle 100, so as to reduce the torque or vibration of the electric vehicle 100 when the electric vehicle is subjected to steering torsion or jolt from being transmitted to the quick-change bracket 20, and further reduce the influence of the torque or vibration on the quick-change bracket 20.

As shown in fig. 10 and 11, the expanding bead includes a connecting post 71 and a plurality of locking balls 72, and the locking balls 72 can move on the connecting post 71, so that the locking balls 72 are exposed out of the outer surface of the connecting post 71 or retract into the connecting post 71, so as to realize that the locking balls 72 are propped against and locked on the lock seat 8 or the expanding bead and the lock seat 8 are mutually unlocked. In this embodiment, the locking ball 72 is matched with the lock seat 8 through the movement of the locking ball 72 relative to the connecting post 71, so as to lock and unlock the expansion bead and the lock seat 8.

Specifically, when the locking operation of the battery pack 60 is performed, the locking balls 72 are driven to be partially exposed to the connection posts 71 and engaged with the inner side walls of the locking chambers 82 of the lock base 8, thereby achieving locking; when the unlocking operation of the battery pack 60 is performed, the locking balls 72 are reset to the inside of the connecting column 71, so that the expansion beads are separated from the lock base 8, and unlocking is achieved. Through the structure, the locking and unlocking of the expansion bead and the lock seat 8 are more convenient and quick.

In this embodiment, the connection post 71 is a hollow post, and the connection post 71 is provided with a plurality of locking holes 711, the locking holes 711 are disposed in one-to-one correspondence with the locking balls 72, and the diameter of the locking holes 711 is smaller than that of the locking balls 72, so that the locking balls 72 can be partially exposed to the connection post 71 through the locking holes 711, and cannot completely slip out of the connection post 71.

The number of the locking balls 72 in the present embodiment is two, and the two locking balls 72 are disposed at opposite sides of the connecting post 71. In other alternative embodiments, the number of locking balls 72 may be one or more, so long as the locking effect of the locking member 50 and the locking seat 8 is ensured.

As shown in fig. 10 and 11, the locking member 50 further includes a driving assembly provided inside the connection post 71 and connected to the locking ball 72, and the lock housing 8 has a locking chamber 82 for accommodating the connection post 71 and the locking ball 72, and the driving assembly is for driving the locking ball 72 between a locking position and an unlocking position. When the locking ball 72 is at the locking position, the locking ball 72 is exposed out of the outer surface of the connecting post 71 and is clamped with the inner side wall of the locking cavity 82; when the lock ball 72 is in the unlock position, the lock ball 72 is retracted toward the inside of the connection post 71 and is reset to the inside of the connection post 71.

As shown in fig. 10 and 11, the driving assembly further includes a driving bolt 73 and a driving ball 74, the driving ball 74 is disposed at an end of the driving bolt 73 facing the locking ball 72, the driving ball 74 is disposed in the connecting post 71 and abuts against the locking ball 72, an internal thread is disposed in the connecting post 71, the internal thread is matched with the driving bolt 73, and the driving bolt 73 controls the driving ball 74 to apply a force for making the locking ball 72 at least partially extend out of the locking hole 711 to the locking ball 72 by adjusting a screw length of the connecting post 71. The arrangement of the driving bolt 73 and the driving ball 74 in the embodiment enables locking and unlocking of the expansion beads to be more convenient.

In this embodiment, the structure of the bead locking mode further includes an anti-rotation and anti-back structure, and the anti-rotation and anti-back structure is connected to the bead to prevent the relative rotation between the bead and the lock seat 8, so as to ensure the stability of the connection between the battery pack 60 and the vehicle.

In other embodiments, the anti-rotation and anti-back-off structure may also be configured to limit the relative rotation between the connection post 71 and the lock base 8 by a ratchet, pawl, and/or expanded bead, and/or engagement. More specifically, the rotation of the drive bolt 73 relative to the lock base 8 is restricted by the above-described engagement manner, so that the relative rotation between the expansion bead and the lock base 8 is restricted.

In other alternative embodiments, an anti-rotation stop feature may be coupled to the lock base 8 to prevent relative rotational movement between the tension bead and the lock base 8.

Specifically, as shown in fig. 6, the locking member 50 further includes a mounting sleeve 75, the mounting sleeve 75 is sleeved on the outer circumferential surface of the connection post 71, and the locking member 50 is connected with the battery pack 60 through the mounting sleeve 75. The outer peripheral surface of the connecting column 71 is provided with a connecting column limiting step 712, the connecting column limiting step 712 extends outwards from the outer peripheral surface of the connecting column 71, the inner peripheral surface of the mounting sleeve 75 is provided with a first limiting step 751 and a second limiting step 752, the first limiting step 751 and the second limiting step 752 extend inwards from the inner peripheral surface of the mounting sleeve 75, the connecting column limiting step 712 is clamped between the first limiting step 751 and the second limiting step 752, the two axial end surfaces of the connecting column limiting step 712 are respectively abutted with the first limiting step 751 and the second limiting step 752, so that the movement of the connecting column 71 in the axial direction is limited, the rotation of the connecting column in the circumferential direction can be limited through the surface friction force between the connecting column limiting step 712 and the first limiting step 751 and the second limiting step 752, and further the relative rotation of the rising bead and the lock seat 8 is prevented.

The following is a brief description of the locking and unlocking process of the battery pack 60 and the quick-change bracket 20 based on the specific mechanism of the bead-expanding locking structure described above.

In the locking process, the driving bolt 73 is rotated to enable the driving bolt 73 to move towards the direction close to the driving ball 74 relative to the connecting column 71, and the driving ball 74 is continuously lifted, so that the driving ball 74 can press the locking ball 72, and the locking ball 72 extends out of the connecting column 71 and is clamped with the inner side wall of the locking cavity 82, so that locking is achieved.

In the unlocking process, the driving bolt 73 is rotated in the opposite direction to enable the driving bolt 73 to move away from the driving ball 74 relative to the connecting column 71, after the driving ball 74 loses the external force action of the driving bolt 73, the locking ball 72 is not pressed any more, and the locking ball 72 is reset into the connecting column 71, so that unlocking is achieved.

In this embodiment, the bracket body 2 is provided with a plurality of locking mechanisms 40, and along the length direction of the bracket body 2, the locking mechanisms 40 are at least located at two sides of the bracket body 2 respectively and are arranged at intervals. The locking mechanism 40 is provided at multiple points on both sides of the bracket body 2, so that the connection reliability and stability of the battery pack 60 with respect to the bracket body 2 and the vehicle body longitudinal beam 30 can be improved.

Of course, in other embodiments, the locking mechanism 40 may be disposed on two sides of the bracket body 2 along the width direction of the bracket body 2, and each side of the locking mechanism 40 is disposed at intervals.

In addition, the bracket body 2 realizes the positioning of the battery pack 60 along the X direction and/or the Y direction while the battery pack 60 is hung through the locking mechanism 40 arranged at intervals along the length direction and/or the width direction of the vehicle body longitudinal beam 30, the locking piece 50 vertically arranged on the side surface of the battery pack 60 can reduce the occupation of the transverse space of the battery pack 60 when locking or unlocking, and the size of the battery pack 60 can be correspondingly increased and the cruising ability of the battery-powered vehicle 100 can be increased.

In other embodiments, a plurality of latches 50 may also be provided in the middle region of each battery pack 60.

Specifically, compared with the plurality of locking members 50 disposed in the edge region of the battery pack 60, the locking members are further disposed in the middle region of the battery pack 60, so that the number of connection points between the battery pack 60 and the quick-change bracket 20 and the number of connection points between the battery pack 60 and the body longitudinal beam 30 of the electric vehicle 100 can be increased, the center of gravity of the battery pack 60 can be more stable after the battery pack is connected to the quick-change bracket 20, and the stability of the connection between the battery pack 60 and the electric vehicle 100 can be further ensured.

As shown in fig. 4, 5 and 10, in this embodiment, the battery pack 60 is in a rectangular structure, the side portion of the battery pack 60 is in a vertically arranged plate structure, the plurality of locking pieces 50 are arranged on the outer side of the plate structure along the vertical direction and extend towards the quick-change bracket 20, one end of each locking piece 50 is fixedly connected to the side surface of the battery pack 60 through bolts or pins, when the battery pack 60 needs to be mounted on the battery-changing vehicle 100 in a battery-changing operation, the battery pack 60 is lifted up by the battery-changing device along the vertical direction, the locking pieces 50 on the battery pack 60 slide into the locking mechanism 40 along the vertical direction, the locking mechanism 40 locks the locking pieces 50 in the locking seats 8 of the locking mechanism 40, when the battery pack 60 needs to be removed from the battery-changing vehicle 100, the bolt assemblies of the second limiting steps 23 are detached, the locking pieces 50 are rotated to be disengaged from the plurality of clamping portions 33, and the locking pieces 50 can descend along with the battery-changing device along the vertical direction and separate from the locking mechanism 40, so that the battery-changing operation is smoothly performed.

In addition, the locking position is arranged at the side of the battery pack 60, so that the operable space is larger in the power changing process, and reliable locking and unlocking of the battery pack 60 are also conveniently realized. The locking members 50 may be disposed on both sides of the battery pack 60 in the longitudinal direction, on both sides of the battery pack 60 in the width direction, or both sides of the battery pack 60, and the positions of the locking members may be flexibly set, and may be adjusted according to the actual locking or arrangement manner. In this embodiment, as shown in fig. 2-3 and fig. 4-5, the locking members 50 are disposed at both sides of the battery pack 60 in the length direction and the width direction, i.e., the four sides of the battery pack 60 are provided with the locking members 50.

Further, the quick-change bracket 20 comprises a bracket body 2 connected with the vehicle body longitudinal beam 30, a containing groove is formed in a part of the bracket body 2 in a sunken mode and used for allowing the vehicle body longitudinal beam 30 to pass through, the containing groove is attached to the vehicle body longitudinal beam 30, the side part of the vehicle body longitudinal beam 30 is fixedly connected with the inner side wall of the containing groove of the bracket body 2, further shaking of the bracket body 2 along the width direction of the vehicle body longitudinal beam 30 is reduced through the vehicle body longitudinal beam 30, and stability of the bracket body 2 is improved.

In this embodiment, as shown in fig. 3 and 4, when the locking mechanism 40 is connected to the bracket body 2 through the adapter bracket 1, the adapter bracket 1 extends downward from the bracket body 2 and the locking mechanism 40 is disposed at the lower end of the adapter bracket 1, so as to be matched with the locking piece 50 on the side surface of the battery pack 60, so as to realize that the battery pack 60 is vertically hung on the quick-change bracket 20, in addition, the adapter bracket 1 forms a surrounding frame along the side surface of the battery pack 60, the surrounding frame is of a rectangular structure composed of sectional materials, and has a certain height, and is used for limiting the position of the battery pack 60 in the surrounding frame, so that the limit on the hanging process and the hanging process of the battery pack 60 can be realized, and the end part of the adapter bracket 1 can be conveniently extended to the side surface of the battery pack 60 and matched with the locking piece 50, and a part of the battery pack 60 is located in the surrounding frame after the hanging, that is located in the surrounding frame formed by the adapter bracket 1, that the side surface of the battery pack 60 is limited by the surrounding frame so as to realize the limit on the side surface of the battery pack 60, so as to further improve the stability of the battery pack 60 after the hanging. In other alternative embodiments, the vehicle end locking mechanism 40 may be directly connected to the bracket body 2, in which case the locking mechanism 40 is disposed downward in a vertical direction and cooperates with the locking member 50 on the battery pack 60 to ensure that the battery pack 60 is vertically hung on the quick-change bracket 20 and further vertically connected to the vehicle body 10. In addition, when the locking mechanism 40 is directly connected to the bracket body 2, the quick-change bracket 20 has simpler structure, easy processing and lower cost.

In this embodiment, the adapter bracket 1 and the bracket body 2 are integrally formed, the structural strength between the adapter bracket 1 and the bracket body 2 of the integrally formed adapter bracket is ensured, and then the battery pack 60 with larger weight can be loaded and hung, in addition, under the integrally formed adapter bracket, the assembly between the locking mechanism 40 and the quick-change bracket 20 is more convenient, the locking mechanism 40 can be connected onto the quick-change bracket 20 only by connecting the locking mechanism 40 onto the adapter bracket 1, and the battery pack 60 can be hung and connected with the quick-change bracket 20 by matching the locking piece 50 of the battery pack 60 with the locking mechanism 40.

It can be understood that the adaptor frame 1 limits the position of the battery pack 60 behind the quick-change bracket 20 by forming a surrounding frame, the middle part of the surrounding frame is surrounded by a containing area 3 for surrounding the battery pack 60, when the depth of the containing area 3 is greater than or equal to the thickness of the battery pack 60, the adaptor frame 1 completely surrounds the battery pack 60 in the containing area 3, that is, the battery pack 60 is limited by the adaptor frame 1 along the X direction and the Y direction of the vehicle body longitudinal beam 30, and further, the battery pack 60 is limited to prevent movement after being hung on the quick-change bracket 20; when the depth of the accommodating area 3 is smaller than the thickness of the battery pack 60, a part of the battery pack 60 is surrounded by the accommodating area 3, that is, the part of the battery pack 60 corresponding to the accommodating area 3 is limited by the adapter frame 1 along the X direction and the Y direction of the longitudinal beam 30, the battery pack 60 can be limited, and the connection stability of the battery pack 60 after being hung on the quick-change bracket 20 can be improved.

As shown in fig. 3 and 4, in this embodiment, the locking member 50 is disposed on the side surface of the battery pack 60 along the vertical direction, and the top end of the locking member 50 is a certain preset distance from the top surface of the battery pack 60, where the sum of the preset distance and the height of the locking member 50 is the required hanging distance of the battery pack 60 on the quick-change bracket 20, and the distance of the locking mechanism 40 on the corresponding adapter bracket 1 away from the bracket body 2 on the adapter bracket 1 is matched with the hanging distance, so that the portion of the battery pack 60 in the accommodating area 3 is just matched with the accommodating area 3, so that space waste in the vertical direction can be reduced.

In addition, as shown in fig. 4 and 5, in the present embodiment, a buffer mechanism 80 is disposed on the side surface of the battery pack 60 corresponding to the bottom end of the adapter frame 1, the buffer mechanism 80 is disposed below the locking member 50, and the buffer mechanism 80 includes a buffer member that is elastically deformable in the vertical direction. The buffer mechanism 80 may be a rubber buffer member, or may be other materials, such as sponge, which is not described in detail herein. The buffer mechanism 80 is arranged to slow down the impact of the adapter bracket 1 between the adapter bracket and the battery pack 60 and between the vehicle end locking mechanism 40 and the locking piece 50 when the battery pack 60 is hung, in addition, the buffer mechanism 80 can slow down the shaking of the battery pack 60 in the running process of the battery-powered vehicle 100 after the battery pack 60 is hung, so that the reliability and the stability of locking are facilitated. The buffer mechanism 80 is arranged corresponding to the bottom end of the transfer frame 1, and does not occupy extra transverse space. In this embodiment, the buffer mechanism 80 is continuously disposed around a periphery of the side surface of the battery pack 60, in order not to affect locking or unlocking of the locking mechanism 40, an interference preventing hole for avoiding interference unlocking is reserved on the buffer mechanism 80, and when a power-changing operation is performed, the locking mechanism 40 is unlocked through the interference preventing hole, and the locking member 50 is correspondingly disengaged from the locking mechanism 40. In other alternative embodiments, the buffer mechanism 80 may be intermittently disposed, where the intermittently disposed buffer mechanism 80 may be disposed avoiding the locking member 50, and where the intermittently disposed buffer mechanism 80 may be disposed correspondingly avoiding the locking mechanism 40 due to the locking mechanism 40 being disposed opposite the locking member 50 in the vertical direction.

Further, in this embodiment, the battery pack 60 has the battery box 4, the battery box 4 is used for holding the electric core and necessary electric parts placed in it, the locking piece 50 is fixed in the side of battery box 4, the battery box 4 still includes setting up in the side and the outside flange 5 that extends of horizontal direction, the bolster setting is in the upper surface of flange 5, flange 5 is used for the tip cooperation with switching frame 1, thereby extrusion bolster plays the cushioning effect, when the battery pack 60 articulates on quick change support 20, the one end that switching frame 1 kept away from support body 2 and the bolster butt of flange 5 upper surface, the top of locking piece 50 stretches out the bolster, locking mechanism 40 is located on switching frame 1 and is located switching frame 1 and flange 5 matched end, in addition, can guarantee through flange 5 that battery pack 60 and quick change support 20's link height, thereby avoid when articulating battery pack 60, the top direct striking of battery pack 60 and the support body 2 of quick change support 20, avoid battery pack 60 to receive battery pack 60 and the bump 2 when switching vehicle 100 is going, the life of improvement and safety in service life of battery pack 60.

As shown in fig. 5, in this embodiment, a guiding mechanism 70 is disposed between the adapter bracket 1 and the battery pack 60, the guiding mechanism 70 includes a guiding block and a guiding surface 6, one surface of the adapter bracket 1 facing the battery pack 60 forms the guiding surface 6 for guiding the battery pack 60 to be hung in the vertical direction, the guiding surface 6 may be an inclined surface or an arc surface, and the purpose is that when the adapter bracket 1 contacts with the top of the battery pack 60, the battery pack 60 smoothly enters the accommodating area 3 of the adapter bracket 1 through the guiding surface 6, so that the hanging precision and smoothness of the battery pack 60 during hanging are improved, and the hanging success rate is improved.

In addition, the side of the battery pack 60 is provided with a guide block for acting the same as the guide surface 6, the guide block is attached to the side of the battery pack 60 and is located above the buffer mechanism 80, and the guide block is obliquely arranged or arc-shaped near one end of the quick-change bracket 20, so that the transfer bracket 1 is guided to slide to the side of the battery pack 60 through the guide block when the transfer bracket 1 contacts with the battery pack 60, that is, the accommodating area 3 of the transfer bracket 1 surrounds the battery pack 60, so that the battery pack 60 is more smoothly hung, and in addition, the arrangement is also beneficial to reducing the transverse dimension of the quick-change bracket 20.

As shown in fig. 3 and 5, the battery pack 60 has a convex portion extending upward from the side of the vehicle body 10 to protrude from the bottom of the vehicle body 10, and further, the convex portion protrudes upward from the side of the two vehicle body stringers 30, and the convex portion serves to increase the capacity of the battery pack 60, and by extending upward to effectively use the space in the height direction, the internal space of the battery pack 60 is increased, so that more battery cells can be accommodated. In cooperation with the convex portion of the battery pack 60, the bracket body 2 may be provided with a relief hole 11 or a relief cavity in cooperation with the convex portion to relieve or accommodate the convex portion. In this embodiment, the avoidance holes 11 are formed in the bracket body 2 between the two vehicle body longitudinal beams 30, and the battery packs 60 on both sides of the vehicle body longitudinal beams 30 can be protected by upwardly arching the bracket body 2 on the bracket body 2 outside the two vehicle body longitudinal beams 30, thereby forming the avoidance cavity. In this embodiment, the bracket body 2 is provided with the avoidance hole 11 and the avoidance cavity corresponding to the protruding portion so as to avoid possible interference between the bracket body 2 and the battery pack 60.

The electric core of battery package 60 is located battery case 4, the battery capacity of battery package 60 is increased to the bellying, and then the range of trading electric vehicle 100 has been promoted, the range increase can reduce trading electric times of trading electric vehicle 100 to a certain extent, and the effectual utilization ratio that trades electric vehicle 100 that has improved, and compare in the holding tank that support body 2 formed and laminate with automobile body longeron 30 through the holding tank, the holding tank is used for dodging automobile body longeron 30, the corresponding bellying that will form for the capacity that improves battery package 60 when dodging automobile body longeron 30 of battery package 60, the bellying forms in the outside of two automobile body longerons 30 and between two automobile body longerons 30, in order to guarantee the capacity of battery package 60 and avoid battery package 60 and support body 2 butt, support body 2 outwards extends in the outside of two automobile body longerons 30 along the horizontal direction, under the general circumstances, the top height of support body 2 is not higher than the top of automobile body longeron 30, in order to avoid causing the interference to the operation of the automobile parts above automobile body longeron 30.

As shown in fig. 4 and 8, in this embodiment, the top of the battery pack 60 is provided with the battery end electrical connector 12, the interface of the battery end electrical connector 12 is disposed downward, the corresponding position of the bracket body 2 is provided with the vehicle end electrical connector 13, and the interface of the vehicle end electrical connector 13 is disposed upward, so as to realize that the battery end electrical connector 12 and the vehicle end electrical connector 13 are connected in a plugging manner in the vertical direction, and the battery pack 60 is connected in a vertical manner, and meanwhile, the battery pack 60 is connected in an electrical manner without a complex mechanical structure, so that the electrical connection is more reliable, and the electricity conversion efficiency is improved.

In addition, this structure can replace the phenomenon of loose connection and bad contact caused by shaking generated when the electric connector is arranged along the horizontal direction during the starting or sudden braking of the electric vehicle 100.

Further, the floating structure can be arranged on the battery end electric connector 12 and/or the vehicle end electric connector 13, so that smooth connection is ensured, the influence of shaking of a part of battery pack on electric connection can be counteracted, the condition that the interface of the battery end electric connector 12 of the battery pack 60 is disconnected with the interface of the vehicle end electric connector 13 due to jolt of the vehicle 100 during running is avoided, the power supply efficiency of the battery pack 60 and the use experience of the vehicle 100 are improved, the elastic piece can be a spring, the interface channel can be a rubber-wrapped adapter, which is in the prior art, and redundant description is omitted.

In this embodiment, the electric vehicle 100 is an electric truck, particularly a heavy truck or a light truck, and because the battery pack of the electric truck is large and heavy, the electric truck is more complicated and complex when connected with the body rail 30 of the electric truck, so that the required power exchanging space is larger in the power exchanging process, and the torque of the electric truck is larger when the electric truck twists itself due to loading of goods, that is, the influence on the battery pack 60 is larger. Therefore, the battery pack 60 is hung vertically to reduce the power exchanging steps, simplify the power exchanging mode to improve the power exchanging efficiency, and effectively improve the connection stability of the battery pack 60 through the quick-change bracket 20. Of course, the present invention can be applied to a vehicle type of a passenger car such as a car.

The locking mechanism 40 in the present embodiment is not limited to the locking mechanism 40 with the lock base 8 mentioned in the above embodiments, but may be any other locking mechanism capable of achieving vertical (straight up and down) hooking of the battery pack 60 to the battery exchange vehicle 100, such as a T-shaped rotary locking mechanism, a bolt-type locking mechanism, a hook-type locking mechanism, or the like.

Example 2

As shown in fig. 6 and 7, the overall structure of the electric vehicle of the present embodiment is basically the same as that of embodiment 1, except that the adaptor bracket 1 of the present embodiment is detachably connected to the bracket body 2.

Specifically, the changeover frame 1 is a rectangular enclosure frame formed by splicing plates, adjacent plates are connected in the vertical direction through connecting pieces to form the rectangular enclosure frame, the enclosure frame is connected to the edge of the bracket body 2, the connecting pieces can be screws, threaded holes and mounting holes are formed in the corresponding plates, a mortise and tenon structure can be selected, the plates are connected and form the enclosure frame, the changeover frame is matched with the bracket body 2 to form a containing area 3, the battery pack 60 is limited along the X direction and the Y direction of the longitudinal beam 30 through the enclosure frame, the changeover frame 1 can be detachably connected, the processing precision can be conveniently improved when the plates are correspondingly and independently processed, the precision of the independent plates is improved, the precision of the enclosure frame is improved, that is to say, the precision of the changeover frame 1 is correspondingly improved, and the changeover frame can be more smoothly connected with the battery pack 60 in a hanging mode. The end part, close to the battery pack 60, on the plate is provided with the locking mechanism 40, so that the battery pack 60 and the quick-change bracket 20 are smoothly hung, the connection stability after the hanging is guaranteed, the battery pack 60 is limited through the switching frame 1, the battery pack 60 is limited by additionally arranging a limiting piece, the cost of the battery-powered vehicle 100 is reduced, and the battery-powered vehicle has certain economical efficiency.

Example 3

As shown in fig. 9, the overall structure of the battery-powered vehicle 100 of the present embodiment is basically the same as that of embodiment 1, except that the locking member 50 of the present embodiment is disposed corresponding to the top surface of the battery pack 60 with respect to the adapter bracket 1 such that the locking position is located on the top surface of the battery pack 60.

In this embodiment, when the locking member 50 is disposed on the top surface of the battery pack 60, the locking member 50 may be disposed in a groove formed on the top surface of the battery pack 60 and cooperate with the locking mechanism 40 extending into the groove to realize that the battery pack 60 is connected to the adapter frame 1 in a bead-expanding locking manner, for example, the locking member 50 is vertically disposed at a position where the top edge of the battery pack 60 extends inward by a preset distance, and the locking position of the locking mechanism 40 and the locking member 50 is located on the top surface of the battery pack 60, so that the width of the battery pack 60 is not increased due to the locking member 50, the lateral space of the battery pack 60 is released, and the size of the quick-change bracket 20 is also reduced, that is, the manufacturing cost of the electric vehicle 100 is reduced, and the size control of the quick-change bracket 20 and the battery pack 60 is facilitated. In addition, the distance between the locking members 50 is smaller due to the above structure, so that the positioning accuracy of the quick-change bracket 20 is improved when the quick-change bracket 20 is processed, the connection accuracy of the battery pack 60 is easier to ensure, the smooth connection of the battery pack 60 is more facilitated, and the power conversion efficiency is improved. In other alternative embodiments, the locking member 50 may be positioned above the top surface of the battery pack 60 and engaged with the locking mechanism 40.

The plurality of locking mechanisms 40 are connected to both sides of the quick-change bracket 20 in the X direction, and the locking mechanisms 40 can be provided in the longitudinal direction of the vehicle body side member 30, so that the locking is more reliable.

In this embodiment, the width of the bracket body 2 is smaller than the width of the battery pack 60, and the bracket body 2 limits the width direction (i.e., the Y direction) of the battery pack 60 through the switching frame 1 and the locking mechanism 40 connected to the switching frame 1, so that the size of the switching frame 1 is reduced, and under the condition of ensuring the stability of the battery pack 60 in the hanging state, the material is saved, and the hanging is smoother.

In addition, in this embodiment, the adapter bracket 1 is detachably connected to the bracket body 2, so that the processing steps and processing cost of the bracket body 2 can be simplified, the processing difficulty of the bracket body 2 is reduced, and the locking piece 50 is connected to the bracket body 2 through the adapter bracket 1, so as to increase the contact area between the locking piece 50 and the bracket body 2, improve the reliability and safety of the connection between the locking piece 50 and the bracket body 2, and the corresponding lock seat 8 is arranged in the groove of the battery pack 60, and the battery pack 60 is connected to the adapter bracket 1 in a bead expansion locking manner by matching the locking piece 50 and the lock seat 8, so that the installation time of the battery pack 60 is saved, and the operation cost of installing or dismantling the battery pack 60 is reduced.

Example 4

The overall structure of the electric vehicle of the present embodiment is basically the same as that of embodiment 1, except for the difference.

Specifically, the quick-change bracket 20 is formed with a plurality of accommodating areas 3 with downward openings, each accommodating area 3 is internally provided with a plurality of locking mechanisms 40, the accommodating areas 3 are used for vertically accommodating the battery packs 60, and the plurality of locking mechanisms 40 are used for locking and unlocking the battery packs 60 in the accommodating areas 3 relative to the quick-change bracket 20 in a bead-expanding locking mode.

The plurality of lock mechanisms 40 are provided in the edge region of the accommodation region 3 in the vehicle body longitudinal direction and/or the width direction of the electric vehicle 100.

The locking mechanism 40 is disposed in an edge area of the accommodating area 3 along a vehicle body length direction, when the locking mechanism 40 is connected with the battery pack 60 in a hanging mode, the accommodating area 3 accommodates the battery pack 60 and limits the battery pack 60 in the direction through the locking mechanism 40 disposed along the vehicle body length direction, and similarly, the locking mechanism 40 is disposed in the edge area of the accommodating area 3 along the vehicle body width direction so as to limit the position of the battery pack 60 in the direction when the battery pack 60 is connected with the battery pack, and the connection stability of the battery pack is improved while a limiting piece is omitted.

Further, the quick-change bracket 20 in this embodiment is formed by fixedly connecting a plurality of cross beams and a plurality of longitudinal beams on the same plane, the cross beams and the longitudinal beams enclose a rectangular frame, the rectangular frame is supported by the staggered arrangement of the shorter cross beams and the longitudinal beams in the rectangular frame, and the stability of the quick-change bracket 20 is improved. The locking mechanisms 40 are fixedly arranged on any side surface of the cross beam or the longitudinal beam, and can be the inner side of a rectangular frame, the side part of the shorter cross beam or the longitudinal beam, or the side part of the joint of the shorter cross beam and the longitudinal beam. Through the side setting of locking mechanism 40 along crossbeam or longeron, locking mechanism 40 is used for along vertical setting with locking piece 50 complex tip to make the locking direction of rising pearl locking mode and change the direction of height of electric vehicle 100 and accord with more and trade the electric logic.

Of course, a plurality of locking mechanisms 40 may also be provided in the middle region of the receiving area 3. That is, the locking mechanism 40 is located at the side portion of the junction between the shorter cross beam and the longitudinal beam in the rectangular frame, when the locking mechanism 40 located in the middle area is plural, the plural locking mechanisms 40 are distributed and arranged along the length direction or the width direction of the vehicle body, and the locking mechanism 40 or the locking member 50 is arranged at the edge of the battery pack 60 in the same way, and the locking mechanism 40 is arranged in the middle area of the accommodating area 3 along the length direction or the width direction of the vehicle body, so that the middle area of the battery pack 60 can be limited along the length direction or the width direction of the vehicle body after being connected with the quick-change bracket 20, thereby improving the positioning precision of the battery pack 60 and the stability of the battery pack 60 after being connected.

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

Claims

1. A battery-powered vehicle, comprising:

the vehicle body is provided with a plurality of wheels,

a quick-change bracket connected with the vehicle body,

2. The battery powered vehicle of claim 1, wherein the bead-expansion locking means comprises the locking member and the locking mechanism, the locking member comprises a bead-expansion, the locking mechanism comprises a lock seat, or the locking member comprises a lock seat, the locking mechanism comprises a bead-expansion; the expansion beads are detachably connected with the lock seats to independently lock the battery packs on the quick-change bracket.

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

4. A battery exchange vehicle according to claim 3 wherein the bead or the lock seat is provided at a central position of the battery pack and the bead or the lock seat extends through the battery pack.

5. A battery powered vehicle as claimed in claim 3 wherein the bead or the lock base is floatingly connected to the battery pack.

6. A battery powered vehicle as claimed in claim 3 wherein said tension bead or said lock base is floatingly connected to said quick change bracket.

7. A battery powered vehicle as claimed in claim 3 wherein the expansion bead comprises a connecting post and a plurality of locking balls, the plurality of locking balls being movable on the connecting post such that the plurality of locking balls are exposed to the outer surface of the connecting post or retract into the connecting post to effect locking of the locking balls against the lock seat or unlocking of the expansion bead and the lock seat from each other.

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

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

10. The battery powered vehicle of claim 2, wherein the bead lock arrangement further comprises an anti-rotation and anti-back arrangement coupled to the bead and/or the lock base to prevent relative rotational movement between the bead and the lock base.

11. The battery powered vehicle of claim 10, wherein the anti-rotation stop feature is configured to limit rotation of the expanding bead relative to the lock base by one of ratchet pawl, expanding bead, snap fit, and engagement.

12. The battery exchange vehicle according to any one of claims 1 to 11, wherein a plurality of the locking pieces are provided in at least an edge region of the battery pack, and a plurality of the locking pieces are provided in an edge region of the battery pack in a vehicle body length direction and/or a width direction of the battery exchange vehicle to lock or unlock the battery pack to a bottom of the battery exchange vehicle.

13. The battery-powered vehicle of claim 12, wherein a plurality of said locking members are further disposed in a central region of each of said battery packs.

14. The battery-powered vehicle according to claim 13, wherein when the plurality of locking members are located in the intermediate region, the plurality of locking members are disposed so as to be distributed in the longitudinal direction or the width direction of the vehicle body.

15. The battery exchange vehicle of claim 14, wherein the locking member located in the intermediate region is connected to a bottom portion of the battery exchange vehicle by being connected in a height direction of the battery exchange vehicle.

16. The battery exchange vehicle according to any one of claims 1 to 11, wherein a plurality of the locking pieces are provided on a side surface of the battery pack, or a plurality of the locking pieces are provided on a top surface of the battery pack.

17. The battery exchange vehicle as claimed in claim 16, wherein the quick-change bracket is fixedly arranged on a beam of a vehicle body of the battery exchange vehicle, the quick-change bracket is formed with accommodating areas with downward openings, and each accommodating area is internally provided with a plurality of locking mechanisms so as to realize locking and unlocking of the battery pack in the accommodating area relative to the quick-change bracket in a bead expansion locking mode.

18. The battery exchange vehicle of claim 16, wherein the quick-change bracket comprises a bracket body connected with a vehicle body, wherein a plurality of the locking mechanisms are directly connected with the bracket body or connected with the bracket body through a transfer bracket, wherein the transfer bracket extends downwards from the bracket body, and the transfer bracket and the bracket body are of an integral structure or the transfer bracket is detachably connected with the bracket body;

or, the quick-change bracket is formed by fixedly connecting a plurality of cross beams and a plurality of longitudinal beams, and the locking pieces are fixedly arranged on any side surface of the cross beams or the longitudinal beams, so that the locking direction of the expanded bead locking mode is consistent with the height direction of the battery-powered vehicle.

19. The battery exchange vehicle of claim 18, wherein the adapter bracket forms a receiving area for enclosing the battery pack, at least a portion of the battery being enclosed in the receiving area in a vertical direction.

20. The battery exchange vehicle of claim 19, wherein the locking member is disposed at a side surface of the battery pack extending downward from a top surface of the battery pack by a predetermined distance;

21. The battery exchange vehicle according to claim 19, wherein a guide mechanism is provided between the adapter frame and the battery pack, the guide mechanism including a guide block and a guide surface, the guide block being provided on a side surface of the battery pack, the adapter frame being formed with the guide surface toward a side surface of the battery pack.

22. The battery changing vehicle according to claim 20, wherein a side surface of the battery pack is provided with a buffer mechanism corresponding to a bottom end of the adapter bracket, the buffer mechanism being disposed below the locking member, the buffer mechanism including a buffer member elastically deformable in a vertical direction.

23. The battery changing vehicle of claim 18, wherein the bottom end of the adapter bracket is directed toward the top surface of the battery pack, and the adapter bracket is disposed in correspondence with the locking member disposed on the top surface of the battery pack.

24. The battery exchange vehicle of claim 18, wherein a plurality of the locking mechanisms are provided in an edge region of the battery pack accommodating region in a vehicle body length direction and/or a width direction of the battery exchange vehicle.

25. The battery powered vehicle of claim 24, wherein a plurality of said locking mechanisms are further disposed in a middle region of said battery pack receiving area.

26. The battery powered vehicle of claim 25, wherein when there are a plurality of locking mechanisms located in said intermediate region, the plurality of locking mechanisms are disposed in a distributed manner along the length direction or the width direction of said vehicle body.

27. The electric vehicle of claim 18, characterized in that the battery pack has a boss extending upward from the side of the vehicle body and protruding from the bottom of the vehicle body, and the bracket body is provided with a relief hole or a relief cavity that matches the boss.

28. The battery exchange vehicle of claim 27, wherein the vehicle body includes two side rails juxtaposed and spaced apart, the bosses being formed outboard of and/or between the two side rails.

29. The electric vehicle according to claim 18, wherein a battery end electric connector is provided at a top of the battery pack, and a vehicle end electric connector is provided at a corresponding position of the bracket body, the battery end electric connector being connected with the vehicle end electric connector in a plug-in connection in a vertical direction.

30. The battery-powered vehicle of claim 1, wherein the battery-powered vehicle is an electric truck.