CN218750404U - Battery pack support and electric vehicle comprising same - Google Patents

Abstract

The utility model provides a battery package support and contain its electric 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 along vertical direction locking or unblock battery package, the support body through floating the 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 battery package support can follow vertical relative floating through floating the unit between the support body of battery package support and the automobile body to this slows down the automobile body and in the distortion or goes the moment of torsion increase that the automobile body receives under the road conditions of jolting or directly transmit the harm that brings to the battery package in vibrations, improves the life of battery package, through the battery package support along the vertical speed of changing of articulating the battery package in order to promote the battery package.

Description

Battery pack support and electric vehicle comprising same

Technical Field

The utility model relates to a vehicle trades electric technical field, in particular to battery package support and contains its 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 replacement and energy compensation, the electric vehicle needs to be provided with a battery pack support 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 is damaged to cause the battery pack not to be hung; or, the battery pack is deformed, cracked or even broken due to the torque applied to the battery pack, the performance of the battery pack is affected, and even a safety accident of the vehicle can happen seriously.

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 battery package support and contain its electric vehicle.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides a battery pack 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 locking or unblock battery pack, the support body through float the 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 an electric vehicle, and the locking mechanism is arranged on the support body to connect the 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.

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, a through hole is formed in a bottom plate of the vehicle beam for the connecting piece to movably penetrate through, 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.

Above-mentioned structure sets up, locates the lateral part of car roof beam through the mounting panel for floating the unit and being located the outside of car roof beam, avoid lining up the bottom plate of car roof beam in order to guarantee the intensity of car roof 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 fixed 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 includes a limiting plate disposed between the elastic member and the limiting member.

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 car girders, and each car girder is provided with a plurality of floating assemblies arranged along the length of the car body at intervals so as to be connected with the bracket 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.

Preferably, the locking mechanism comprises a first lock body and/or a second lock body, the first lock body is provided with a locking part, the locking part is provided with a locking groove with a downward opening, so that the locking mechanism of the battery pack enters the locking groove from bottom to top and then the locking part rotates to lock the battery pack; the second lock body is provided with a lock hole with a downward opening and a thread for the lock mechanism of the battery pack to be screwed in to lock the battery pack.

Above-mentioned structure sets up, realizes vertically articulating the battery package through the lock mechanism on the lock part of first lock body and the battery package, and the vertical battery package that articulates can be realized equally through the locked groove of second lock body and the latch mechanism spiro union connection that the battery wrapped, also can all adopt first lock body or second lock body certainly, and its aim at is vertical articulates the battery package and increases the stability of being connected of battery package and support body on the support body.

Preferably, the first lock bodies are arranged at intervals along the length direction and/or the width direction of the bracket body.

Above-mentioned structure sets up, through a plurality of first locks that set up along the length direction and/or the width direction of support body, connects the battery package to realize the connection stability of battery package.

Preferably, the first lock bodies are arranged on the support body at intervals along a middle shaft in the length direction of the vehicle body, and the second lock bodies are arranged on the support body at intervals along the outer edge of the support body.

Above-mentioned structure sets up, articulates the mid portion of battery package through first lock body, articulates the marginal part of battery package through the second lock body, and first lock body and the cooperation of second lock body have improved the reliability of battery package with this body coupling of support.

An electric vehicle comprising a battery pack holder as described above.

This electric vehicle, its automobile body and battery package are along vertical articulate and through the support body switching, realize the quick battery change 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 receives to turn to and twists or torque when jolting or vibrations transmit to the battery package and then influence the condition of battery package performance.

Preferably, the electric 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 mode switching battery package of battery package support, realize trading 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 is 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 that the body receives the moment of torsion increase or directly transmit the harm that the battery package brought to shaking, 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 floating unit according to an embodiment of the present invention.

Fig. 4 is a positional relationship diagram of a mounting plate 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 the bracket body according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a bracket body according to another embodiment of the present invention.

Fig. 9 is a schematic diagram illustrating a position relationship between the first lock body and the second lock body according to another embodiment of the present invention.

Description of the reference numerals:

electric vehicle 100

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

Stopper 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

First lock body 8

Second lock body 9

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 battery package support can be used to concrete structure like the electric vehicle 100 shown in figure 1, and electric vehicle 100 has two car roof 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 roof 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 specific structure of the battery pack support of the embodiment is as shown in fig. 1, 5 and 7, and includes a support body 30 connected to two vehicle beams 20 of an electric vehicle 100, the support body 30 is a frame structure formed by welding profiles, each locking mechanism 40 is arranged at the support body 30 at intervals at least along the length direction of the vehicle body, specifically, the locking mechanism can be arranged at the upper surface or the lower surface of the side wall of a longitudinal beam of the support body 30 and used for being locked and connected with the battery pack 10, and the battery pack 10 can move along the vertical direction to be locked and unlocked with the locking mechanism 40, so that the battery pack 10 is connected or disconnected with respect to the support body 30, and the purpose of replacing the battery is achieved. For the material of the bracket body 30, other materials, such as a plate material and a square tube, can be selected according to actual requirements, and are not limited to the profile.

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 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 sectional dimension of the limiting member 3 is greater than the sectional dimension of the elastic member 1 in the same direction, and the upper and lower ends of the elastic member 1 abut against the upper surface of the vehicle beam 20 and the lower surface of the limiting member 3 to prevent the elastic member 1 from being separated from the connecting member 2, so that the bracket body 30 can float relative to the vehicle beam 20 in the vertical direction through the floating unit 50, and vibration or torque of the vehicle beam 20 is slowed down and transmitted to the bracket body 30, and then 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 the 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 car beam 20 has a bottom plate extending along the horizontal direction, the bottom plate of the car beam 20 is provided with a through hole for the connecting piece 2 to movably penetrate through, one end of the connecting piece 2 is fixed on the bracket body 30, the other end of the connecting piece 2 penetrates through the through hole and the upper and lower ends of the elastic piece 1 respectively abut against the upper surface of the bottom plate and the lower surface of the limiting piece 3, so that the bracket body 30 can vertically float relative to the car 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 the automobile body end simple structure need not to install additional 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 horizontally extends 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 the lower end of the elastic member 1 is located on the 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 the upper end of the elastic member 1 is still abutted against the lower surface of the limiting member 3, so that the elastic member 1 is limited between the mounting plate 4 and the limiting member 3, and the connecting member 2 is prevented from being disengaged from the elastic member 1 by the limiting member 3, thereby further preventing the mounting plate 4 from being disengaged, 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 the bottom plate of the car beam 20 does not need to have an intact integrity, 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 connected with the car beam 20 by bolts, 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 car beam is fixed to the car beam 20, and the end far away from the car 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 towards the outer side of the car beam 20, that is, one end of the mounting plate 4 is fixedly connected to the car beam 20, and the other end of the mounting plate 4 is connected to the car beam 20 through the fixing portion 51 of the fixing bracket 5, so that the mounting plate 4 is prevented from being a cantilever structure with one end stressed, the bearing capacity of the mounting plate 4 is improved, 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 detail herein.

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 car beam 20 on the bracket body 30 and the battery pack 10, the floating units 50 in this embodiment are provided in plurality, two adjacent floating units 50 are arranged side by side and form a group of floating assemblies 7, further, two locating parts 3 exist in the two floating units 50, two elastic parts 1 and two connecting parts 2, two through holes arranged side by side are formed in the mounting plate 4 corresponding to the floating assemblies 7, the floating assemblies 7 are correspondingly accommodated in the accommodating areas 53, and 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 in the same limiting plate 6 so as to facilitate the penetration of the connecting parts 2, so that the problem of inconvenient installation 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 the problem of cost for dust prevention by separately arranging the fixing bracket 5 and the cover plate 54 can be avoided, and the installation steps can be reduced by sharing the same limiting plate 6, and the installation efficiency of the floating units 50 can be improved.

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 car beams 20, each car beam 20 is provided with a plurality of floating assemblies 7, for example, 5 floating assemblies 7, which are arranged along the length direction a of the car beam 20 at intervals, and of course, other numbers of floating assemblies 7 may be selected, which aims to improve the connection stability between the bracket body 30 and the car beam 20 and to reduce the vibration or torque transmission of the car beam 20 to the bracket body 30 on the basis of the battery pack 10 being connected through the bracket body 30.

In this embodiment, as shown in fig. 5, a plurality of first lock bodies 8 are disposed on the bracket body 30, and the first lock bodies 8 are respectively located at two sides of the bracket body 30 and are spaced apart from each other along the length direction of the bracket body 30. The first lock 8 is disposed at multiple points on both sides of the bracket body 30, so that the reliability and stability of the connection of the battery pack 10 to the bracket body 30 and the vehicle body 20 can be improved.

Of course, in other embodiments, the first lock bodies 8 may also be disposed on two sides of the rack body 30 along the width direction of the rack body 30, and the first lock bodies 8 are disposed at intervals on each side.

The first lock body 8 is provided with a locking part (not shown in the figure), the locking part is provided with a locking groove with a downward opening, the battery pack 10 is provided with a locking shaft (not shown in the figure), the locking shaft can enter the locking groove in the upward movement process of the battery pack 10, the battery pack 10 continuously moves upwards to enable the locking shaft to be abutted against the locking groove and drive the locking part to rotate to a locking position, and therefore the locking of the battery pack 10 is achieved; alternatively, the locking portion is rotated to the unlocking position, so that the locking shaft can be disengaged from the locking groove during the movement of the battery pack 10 from top to bottom to realize unlocking. Due to the arrangement, the battery pack 10 can be locked and unlocked only by moving in one direction, so that the unlocking mode is simpler, and the battery replacement efficiency can be improved.

In another preferred embodiment, the first latch 8 can be replaced by a second latch 9, and the second latch 9 has a lock hole with a downward opening and a thread for the lock rod of the battery pack 10 to be screwed into to lock the battery pack 10. Due to the arrangement, the battery pack 10 can be locked and unlocked only by moving in one direction, so that the unlocking mode is simple, and the battery replacement efficiency can be improved.

In addition, the locking mechanism 40 in the embodiment may be any other locking mechanism 40 that can achieve vertical (straight up and down) coupling of the battery pack 10 to the electric vehicle 100, such as an expansion bead type locking mechanism, a T-lock type locking mechanism, a hook type locking mechanism, and the like.

Example 2

As shown in fig. 8 and 9, the overall structure of the battery pack holder of the present embodiment is substantially the same as that of embodiment 1, and is different in that the holder body 30 is provided with a first lock 8 and a second lock 9, specifically, a plurality of second locks 9 are provided at intervals along the outer edge of the holder body 30, and a plurality of first locks 8 are provided at intervals on the central axis of the holder body 30 along the length direction of the vehicle body. Because the lock rod and the lock hole are screwed in the vertical direction, a sufficient battery replacing space needs to be reserved in the height direction between the support body 30 and the battery pack 10 during battery replacing, that is, a battery replacing space is reserved in the Z direction of the support body 30, so that the second lock body 9 is located at the edge of the support body 30, the middle part of the battery pack 10 is avoided, and the height of the battery pack 10 is further ensured. Moreover, the locking mechanism 40 needs to screw the locking rod into or out of the locking hole by a special device for locking or unlocking, and if the second lock body 9 is also arranged on the middle shaft, a space for the special device to work needs to be reserved at the corresponding position of the battery pack, which is not favorable for the integrity of the battery pack 10 and can reduce the capacity of the battery pack. Therefore, in the embodiment, the first lock body 8 is arranged on the middle shaft to avoid the lock rod from penetrating through the middle of the battery pack 10, so that the capacity of the battery pack is not affected, the structure of the battery pack 10 is simple, and the stability of battery installation is improved.

Of course in other embodiments the positions of the first lock 8 and the second lock 9 may be interchanged.

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 (15)

1. The utility model provides a battery pack 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 locking or unblock battery pack, the support body pass through floating the unit connect in the automobile body makes the support body is relative in vertical the automobile body can float.

2. The battery pack holder according to claim 1, wherein the vehicle body has a vehicle beam extending in a length direction of the vehicle body, the holder body is located below the vehicle beam, and the floating unit is disposed above the holder body.

3. The battery pack support according to claim 2, wherein the floating unit includes an elastic member, a connecting member, and a limiting member, the connecting member is connected to the support body and the vehicle body, respectively, one end of the connecting member is fixed to one of the support body and the vehicle body, the other end of the connecting member sequentially penetrates through the other of the support body and the vehicle body and the elastic member, and the limiting member is provided at an end of the other end of the connecting member such that the elastic member is limited between the support body or the vehicle body and the limiting member.

4. The battery pack support according to claim 3, wherein the bottom plate of the vehicle frame has a through hole for the connecting member to movably pass through, 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.

5. The battery pack support according to claim 3, wherein a mounting plate is disposed on a side portion of the car beam, the mounting plate horizontally extends outward from the side portion of the car beam, a through hole is formed in 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.

6. The battery pack support according to claim 5, wherein the side portion of the vehicle beam is further provided with a fixing bracket having a fixing portion fixed to the vehicle beam and a connecting portion, and 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 to the fixing bracket.

7. The battery pack holder according to claim 6, wherein a cover plate is provided above the fixing holder, the cover plate covering at least the receiving area.

8. The battery pack holder of claim 3, wherein the floating unit further comprises a limiting plate disposed between the elastic member and the limiting member.

9. The battery pack holder according to claim 8, wherein the floating units are plural, two adjacent floating units form a group of floating assemblies, and the floating units of the same group of floating assemblies are commonly connected to the same limiting plate.

10. The battery pack support of claim 9, wherein there are two of said vehicle beams, and wherein a plurality of said floating assemblies are provided on each of said vehicle beams at spaced intervals along the length of said vehicle body for attachment to said support body.

11. The battery pack support according to claim 1, wherein the locking mechanism comprises a first lock body and/or a second lock body, the first lock body is provided with a locking part, and the locking part is provided with a locking groove with a downward opening so that the locking mechanism of the battery pack enters the locking groove from bottom to top and then the locking part rotates to lock the battery pack; the second lock body is provided with a lock hole with a downward opening and a thread for the lock mechanism of the battery pack to be screwed in to lock the battery pack.

12. The battery pack holder according to claim 11, wherein the first lock member is provided in plurality at intervals in a length direction and/or a width direction of the holder body.

13. The battery pack holder of claim 11, wherein the holder body is provided with the first latch at intervals along a central axis of the vehicle body in a length direction, and the second latch at intervals along an outer edge of the holder body.

14. An electric vehicle, characterized in that it comprises a battery pack holder according to any one of claims 1-13.

15. The electric vehicle of claim 14, characterized in that the electric vehicle is an electric truck.

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