CN116118559A - Battery pack bracket and electric vehicle comprising same - Google Patents

Abstract

The invention provides a battery pack bracket and an electric vehicle comprising the same, which comprise a bracket body, wherein the bracket body is at least provided with locking mechanisms which are arranged at intervals along the length direction of a vehicle body, the locking mechanisms are used for locking or unlocking a battery pack along the vertical direction, and the bracket body is connected with the vehicle body through a floating unit so that the bracket body can float vertically relative to the vehicle body. According to the invention, the battery pack is switched through the battery pack support, the support body of the battery pack support and the vehicle body can float relatively vertically through the floating unit, so that the damage caused by the fact that the torque of the vehicle body is increased or vibration is directly transmitted to the battery pack when the vehicle body is twisted or driven under a bumpy road condition is relieved, the service life of the battery pack is prolonged, and the battery pack is vertically hung through the battery pack support, so that the battery pack power conversion rate is improved.

Description

Battery pack bracket and electric vehicle comprising same

Technical Field

The invention relates to the technical field of vehicle power conversion, in particular to a battery pack bracket and an electric vehicle comprising the same.

Background

Currently, for electric vehicles, a battery pack is generally fixedly connected with a vehicle body of the electric vehicle, and the electric vehicle supplements electric energy in a charging mode; alternatively, the battery pack and the body of the electric vehicle can be connected in a quick-change manner, and the electric vehicle can supplement electric energy in the form of the quick-change battery pack. Because the charging and energy supplementing modes are time-consuming, the quick-change energy supplementing modes are relatively more convenient and more important. However, for the electric vehicle with quick-change energy compensation, the electric vehicle needs to be provided with a battery pack support so that the battery pack can be quickly assembled and disassembled on the electric vehicle. The battery pack bracket is generally fixed on the vehicle body of the electric vehicle, that is, the force is transmitted to the battery pack bracket and then to the battery pack under the condition that the vehicle body is stressed due to the rigid connection between the battery pack bracket and the vehicle body.

The structure can lead the vehicle body distortion caused by steering or jolting in the running process of the electric vehicle to be directly transmitted to the battery pack bracket and the battery pack in a rigid connection mode, thereby influencing the connection between the battery pack and the battery pack bracket, and particularly leading the locking mechanism on the battery pack bracket to be damaged so as to lead the battery pack to be incapable of being hung; or, the battery pack is deformed, split or even broken due to the fact that the battery pack is subjected to torque, the performance of the battery pack is affected, and serious safety accidents can be caused even for vehicles.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects that in the prior art, a battery pack bracket is rigidly connected with an electric vehicle, the connection between the battery pack and the battery pack bracket is influenced by a vehicle body of the electric vehicle due to jolting and the like, and a locking mechanism on the battery pack bracket is damaged so as not to be capable of hanging the battery pack; or drive battery package vibrations or deformation, and then influence the defect of battery package performance, provide a battery package support and contain its electric vehicle.

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

the utility model provides a battery package support, includes the support body, the support body is equipped with at least along the locking mechanism that automobile body length direction interval set up, locking mechanism is used for along vertical direction locking or unblock battery package, the support body through float the unit connect in the automobile body makes the support body is vertically relatively the automobile body floatable.

The battery pack support is used for an electric vehicle, and the locking mechanism is arranged on the support body to hang 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 jolt or twisting forces borne by the electric vehicle are counteracted by the floating unit, and further the battery pack is reduced or even not transmitted to the battery pack, so that the connection between the battery pack and the battery pack support is prevented from being influenced, and the reliability and stability of the locking mechanism in the using process are ensured. Simultaneously, can also realize reducing the moment of torsion transmission to the battery package, avoid causing battery package vibrations or deformation, improve the safety in utilization of battery package to the battery package is difficult for impaired, on this basis, the life of battery package increases, has improved the economic nature.

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

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

Preferably, the floating unit comprises an elastic member, a connecting member and a limiting member, wherein the connecting member is respectively connected with the support body and the vehicle body, one end of the connecting member is fixed on one of the support body and the vehicle body, the other end of the connecting member sequentially penetrates through the other one of the support body and the vehicle body and the elastic member, and the end part of the other end of the connecting member is provided with the limiting member so that the elastic member is limited between the support body or the vehicle body and the limiting member.

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

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

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

Preferably, the lateral part of roof beam is equipped with the mounting panel, the mounting panel is followed the lateral part of roof beam outwards horizontally extends, offer the through-hole on the mounting panel for the connecting piece movably wears to establish, the lower extreme of elastic component support in on the mounting panel, the upper end of elastic component with the locating part butt.

The side of roof beam is located through the mounting panel to above-mentioned structure setting for floating unit is located the outside of roof beam, avoids link up the bottom plate of roof beam with the intensity of guaranteeing the roof beam.

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

Above-mentioned structure sets up, and the mounting panel passes through the fixed bolster to be fixed in on the roof beam indirectly, 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 roof beam fixed connection with this connection stability who improves the mounting panel.

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

Above-mentioned structure sets up, sets up the apron and seals the top that holds the district, further protects mounting panel and floating unit to realize dustproof or waterproof function.

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

The structure is provided, the contact area between the limiting piece and the elastic piece is increased through the limiting plate, so that the stress of the elastic piece is uniform when the body of the electric vehicle is stressed due to jolting and the like.

Preferably, the floating units are multiple, 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.

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

Preferably, the number of the vehicle beams is two, and each vehicle beam is provided with a plurality of floating assemblies which are arranged at intervals along the length of the vehicle body so as to be connected with the bracket body.

Above-mentioned structure sets up, through all setting up floating assembly on two roof beams so that the support body is more firm with the connection of vehicle.

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 for a locking mechanism of the battery pack to enter 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 provided with threads, so that a lock mechanism of the battery pack can be screwed in to lock the battery pack.

The structure is provided, the vertical hanging of the battery pack is realized through the locking part of the first lock body and the locking mechanism on the battery pack, the vertical hanging of the battery pack can also be realized through the locking groove of the second lock body and the locking mechanism threaded connection on the battery pack, and the first lock body or the second lock body can be adopted, so that the purpose of vertically hanging the battery pack on the bracket body is to increase the connection stability of the battery pack and the bracket body.

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

Preferably, the bracket body is provided with the first lock bodies at intervals along the middle axis of the length direction of the vehicle body, and the second lock bodies are provided with the second lock bodies at intervals along the outer edges of the bracket body.

The structure is arranged, the middle part of the battery pack is hung through the first lock body, the edge part of the battery pack is hung through the second lock body, and the reliability of connection of the battery pack and the bracket body is improved through the cooperation of the first lock body and the second lock body.

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

This electric vehicle, its automobile body and battery package are along vertical articulated and pass through the support body and carry out the switching, realize the quick battery package trades the electricity, and the battery package can be vertical relatively through the floating unit that sets up between support body and the automobile body and float, can make electric vehicle receive jolt or distortion equiforce by floating unit offset, and then reduce and no longer conduct to the battery package any more to this slows down electric vehicle and warp or jolt time moment of torsion or vibrations transmission to the battery package and then influence the condition of battery package performance when receiving the turning to.

Preferably, the electric vehicle is an electric truck.

Among the above-mentioned technical scheme, the battery package of electric truck is bulky, weight for meet the road conditions that jolts in use, more easily influence the connection between battery package and the battery package support and electric truck makes moment of torsion bigger when self twists because of loading goods, it is bigger to the influence of battery package promptly. A battery pack holder with a floating unit is thus used to mitigate the impact on the battery pack and the connection between the battery pack and the battery pack holder.

The invention has the positive progress effects that: according to the invention, the battery pack is switched through the battery pack support, so that quick battery pack replacement is realized, the support body of the battery pack support and the vehicle body can float relatively vertically through the floating unit, so that jolt or torsion and other forces borne by the electric vehicle are counteracted by the floating unit, and further, even the electric vehicle is not conducted to the battery pack, thereby reducing the damage caused by torque increase borne by the vehicle body under the condition of torsion or running on jolt road conditions or vibration is directly transmitted to the battery pack, improving the use safety of the battery pack, and the battery pack is not easy to damage.

Drawings

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

Fig. 2 is a partial 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 diagram of a bracket body according to an embodiment of the 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 diagram illustrating a positional relationship of a bracket body according to an embodiment of the invention.

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

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

Reference numerals illustrate:

electric vehicle 100

Battery pack 10

Vehicle beam 20

Longitudinal direction A of vehicle beam

Vehicle width direction B

Bracket body 30

Locking mechanism 40

Floating unit 50

Elastic member 1

Connecting piece 2

Spacing piece 3

Mounting plate 4

Fixing support 5

Fixing portion 51

Connection portion 52

Accommodation area 53

Cover plate 54

Limiting plate 6

Float assembly 7

First lock body 8

Second lock 9

Detailed Description

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

Example 1

The present invention provides a battery pack holder that can be used for an electric vehicle 100 having a specific structure as shown in fig. 1, the electric vehicle 100 having two vehicle beams 20 disposed in parallel in the front-rear direction for connecting main components of the electric vehicle 100, such as a suspension, wheels, etc., and a battery pack 10 of the electric vehicle being mounted under the two vehicle beams 20 so that quick replacement of the battery pack 10 can be performed from below the electric vehicle 100, making replacement of the battery pack 10 more quick and convenient. In the present embodiment, the electric vehicle 100 is a heavy truck or a light truck, and of course, the present invention can be applied to a passenger car such as a car. The specific structure of the battery pack bracket of this embodiment is shown in fig. 1, 5 and 7, and includes a bracket body 30 connected to two beams 20 of an electric vehicle 100, where the bracket body 30 is a frame structure formed by welding profiles, and each locking mechanism 40 is disposed at least along the longitudinal direction of the vehicle body at intervals on the bracket body 30, specifically, may be disposed on the side wall or the lower surface of the longitudinal beam of the bracket body 30, and is used for locking connection with the battery pack 10, and the battery pack 10 may move along the vertical direction to lock and unlock with the locking mechanism 40, so that the battery pack 10 is connected or disconnected with respect to the bracket 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 and a square tube, may be selected according to practical requirements, and are not limited to the profile.

Meanwhile, a floating unit 50 is arranged between the bracket body 30 and the vehicle beam 20 along the vertical direction, the floating unit 50 is used for switching the bracket body 30 onto the vehicle beam 20, the floating unit 50 can float along the vertical direction, vibration or torque can be generated when the electric vehicle 100 runs on a road with poor road conditions to cause jolt or steering angle to generate larger torsion on the vehicle beam 20, and the floating unit 50 is arranged on the vehicle beam 20 so that the battery pack 10 can float vertically relative to the vehicle beam 20 to offset the force of jolt or torsion and the like of the electric vehicle, so that the electric vehicle is reduced or even not transmitted to the battery pack 10 any more, the connection between the battery pack 10 and the battery pack bracket is avoided, and the reliability and the stability of the locking mechanism 40 in the use process are ensured. Meanwhile, torque transmission to the battery pack 10 can be reduced, vibration or deformation of the battery pack 10 is avoided, 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.

Therein, as shown in fig. 2, the floating unit 50 is disposed above the bracket body 30 to be connected with the vehicle beam 20 such that the bracket body 30 is located below the vehicle beam 20. The battery pack 10 is disposed below the bracket body 30, so that the battery pack 10 can be disassembled from the lower part of the electric vehicle by using a battery replacement device (not shown in the drawings), that is, the battery pack 10 is locked or unlocked relative to the locking mechanism 40 of the bracket body 30, so as to realize taking, placing and transferring of the battery pack 10. Meanwhile, the space below the vehicle beam 20 can be fully utilized, and the space above the vehicle beam 20 can be used for cargo carrying and the like, so that the space utilization on the electric vehicle 100 is more reasonable.

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

For other electric vehicles 100 without a vehicle body, 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 vertically with respect to the vehicle body.

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

In another implementation of this embodiment, one end of the connecting member 2 is fixed on 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.

Because the electric vehicle 100, particularly an electric truck, uses a large and heavy battery pack 10 that is connected to the roof rail 20 by the floating unit 50 alone, the load carrying capacity of the floating unit 50 is highly desirable. In the embodiment, the elastic piece 1 adopts a rectangular spring with the spring coefficient of 510Nm/mm, and the rectangular spring has high bearing capacity and can meet the bearing requirement of the battery pack 10; secondly, the rectangular spring has strong fatigue resistance, and can meet the high-frequency elastic deformation requirement of the rectangular spring caused by high-frequency cornering and jolting in the use process after the battery pack 10 is mounted on the electric vehicle 100.

In this embodiment, the connecting piece 2 adopts a connecting rod extending vertically, and a limiting piece 3 is integrally formed at one end of the connecting rod, so that the connecting rod and the rectangular spring can be prevented from being separated due to the fact that the radial cross section size of the limiting piece 3 is larger than that of the rectangular spring, and the connecting rod and the rectangular spring are matched to realize floating of the bracket body 30 relative to the vehicle beam 20. In other embodiments, the limiting member 3 may be additionally provided and fixed at one end of the connection rod.

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

In another preferred embodiment, as shown in fig. 2, 3 and 4, the side portion of the vehicle beam 20 is provided with a mounting plate 4, the mounting plate 4 is a rectangular plate, the mounting plate 4 is welded with the vehicle beam 20, one end of the mounting plate 4 extends horizontally outwards from the side portion of the vehicle beam 20, a through hole is formed in the mounting plate 4 along the vertical direction, the connecting piece 2 is arranged in the through hole in a penetrating manner, the lower end of the elastic piece 1 is located on the upper surface of the mounting portion 4, that is, the mounting portion 4 is matched with the elastic piece 1 and the connecting piece 2 to bear the bracket body 30, the upper end of the elastic piece 1 is still abutted against the lower surface of the limiting piece 3, so that the elastic piece 1 is limited between the mounting plate 4 and the limiting piece 3, the connecting piece 2 is prevented from being separated from the elastic piece 1 by the limiting piece 3, and is further prevented from being separated from the mounting plate 4, so that the bracket body 30 and the vehicle beam 20 can float vertically by the floating unit 50, on the basis, the mounting plate 4 is arranged on the side portion of the vehicle beam 20, the bottom plate of the vehicle beam 20 is not required to be perforated, and the integrity is not damaged, and the structural strength of the vehicle beam 20 is ensured.

In another preferred embodiment, as shown in fig. 3, 4 and 6, the side portion of the 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 are provided with fixing portions 51 fixed to the beam 20 and connecting portions 52 connected between the two fixing portions 51, the fixing portions 51 extend along the length direction a of the beam 20 and are attached to the side portion of the beam 20, and the fixing portions 51 are bolted to the beam 20, so as to improve the connection stability of the fixing bracket 5 and the beam 20 and facilitate maintenance and replacement. 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 beam 20. The mounting plate 4 is disposed in the accommodating area 53, and in this embodiment, the mounting plate 4 may not be directly fixed to the vehicle beam 20, and the mounting plate 4 may be indirectly fixed to the side portion of the vehicle beam 20 by being fixed to the connecting portion 52. By 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 under the condition of damage; and by covering the connecting portion 52 on the outer side of the mounting plate 4, the fixing bracket 5 can protect the mounting plate 4. Meanwhile, the elastic piece 1, the connecting piece 2 and the limiting piece 3 are all located in the accommodating area 53, the accommodating area 53 provides space to ensure that the floating unit 50 can float vertically, dust, sewage or sundries and the like can be prevented from entering the floating unit 50 along the horizontal direction, so that the floating unit 50 is prevented from being corroded by dust or sundries in the outdoor environment when being located on the outer side of the vehicle beam 20, the floating unit 50 is ensured to work normally, and particularly the elastic piece 1 is flexibly connected with the vehicle beam 20 through the support body 30 to replace the support body 30 to be rigidly connected with the vehicle beam 20.

In other embodiments, the mounting plate 4 is fixed to the beam 20 near the beam end, and one end far away from the 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 beam 20, that is, one end of the mounting plate 4 is fixedly connected to the beam 20, and the other end of the mounting plate 4 is connected to the 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 being stressed, the bearing capacity of the mounting plate 4 is improved, and on this basis, the capacity of the battery pack 10 hung on the bracket body 30 can be correspondingly increased, which is not repeated herein.

Further, the upper side of the fixed support 5 is provided with the cover plate 54, the cover plate 54 is arranged along the horizontal direction, the cover is arranged above the accommodating area 53 and is respectively in fit connection with the outer side of the vehicle beam 20 and the fixed support 5, so that the upper end of the accommodating area 53 is closed through the cover plate 54, the lower end of the accommodating area 53 is closed through the mounting plate 4, the tightness of the accommodating area 53 is improved, dust, sewage or sundries are prevented from entering the accommodating area 53 along the vertical direction through the cover plate 54, the elastic piece 1 is prevented from being blocked by the sundries and cannot do rebound movement along the vertical direction, the floating unit 50 is ensured to work normally, the service life of the elastic piece 1 is shortened due to the fact that the sewage is prevented from corroding the elastic piece 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 accommodation area 53 so as to cover at least the accommodation area 53.

In this embodiment, the floating unit 50 further includes a limiting plate 6, the limiting plate 6 is a plate structure disposed in a horizontal direction, a circular hole is formed in the limiting plate 6, the connecting piece 2 is inserted into the circular hole, and the circular hole of the limiting plate 6 is smaller than the radial section of the limiting piece 3 to avoid the detachment of the limiting plate 6. The locating part 3 is located the top of locating plate 6 and locating plate 6 is located between locating part 3 and the elastic component 1, that is to say the upper end butt in the lower surface of locating plate 6 of elastic component 1, and the lower extreme butt in the upper surface of mounting panel 4 of elastic component 1 for through the area of contact of locating plate 6 increase and elastic component 1's upper end, the atress of elastic component 1 is even when the automobile body of electric vehicle 100 atress because of reasons such as jolt. Meanwhile, the contact area is increased, so that the upward elastic force applied by the elastic piece 1 can be diffused to the limiting plate 6, that is to say, the limiting performance of the elastic piece 1 is increased through the limiting plate 6, the floating unit 50 is firmer, and the reusability of the floating unit 50 is improved.

Meanwhile, in order to improve the effect of reducing the torque or vibration of the beam 20 on the bracket body 30 and the battery pack 10, the floating units 50 in this embodiment are provided with a plurality of adjacent two floating units 50 arranged side by side and forming a group of floating assemblies 7, further, two floating units 50 are provided with two limiting members 3, two elastic members 1 and two connecting members 2, two through holes arranged side by side corresponding to the floating assemblies 7 on the mounting plate 4, the size of the accommodating area 53 correspondingly accommodates the floating assemblies 7, and the floating units 50 of the same group of floating assemblies 7 are connected together on the same limiting plate 6, two parallel round holes are arranged on the same limiting plate 6 so as to facilitate the penetration of the connecting members 2, thereby avoiding the problem of inconvenient installation and dust-proof cost lifting caused by independently setting the mounting plate 4 and the limiting plate 6 for the two floating units 50 of the same group of floating assemblies 7, and sharing the same limiting plate 6, and improving the installation efficiency of the floating units 50.

It can be appreciated that by adding the floating units 50, the stress of the bracket body 30 is more uniform, and increasing the number of the floating units 50 reduces the torque or vibration of the vehicle beam 20 to be transferred to the bracket body 30 and then to the battery pack 10, so as to improve the stability and reliability of the bracket body 30 for hanging the battery pack 10.

In this embodiment, there are two beams 20, each beam 20 is provided with a plurality of floating assemblies 7, for example, 5 floating assemblies 7, which are arranged at intervals along the length direction a of the beam 20, 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 beams 20, and to reduce the vibration or torque of the beam 20 from being transmitted to the bracket body 30 on the basis of connecting the battery pack 10 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 disposed at intervals along the length direction of the bracket body 30. The first lock bodies 8 are arranged at multiple points on two sides of the bracket body 30, so that the connection reliability and stability of the battery pack 10 relative to the bracket body 30 and the vehicle beam 20 can be improved.

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

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 moving process of the battery pack 10, and the battery pack 10 continuously moves upwards to enable the locking shaft to prop against the locking groove and drive the locking part to rotate to a locking position, so that the battery pack 10 is locked; or the locking part rotates to the unlocking position, so that the lock shaft can be separated from the lock groove in the process of moving the battery pack 10 from top to bottom to realize unlocking. By 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 meanwhile, the power conversion efficiency can be improved.

In another preferred embodiment, the first lock body 8 can be replaced by a second lock body 9, and the second lock body 9 has a lock hole with a downward opening and provided with threads to screw in a lock rod of the power supply pack 10 to lock the battery pack 10. By 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 meanwhile, the power conversion efficiency can be improved.

Further, the locking mechanism 40 in the present embodiment may be any other locking mechanism 40 that can achieve vertical (direct up and down) hooking of the battery pack 10 to the electric vehicle 100, such as a bead-expanding locking mechanism, a T-lock locking mechanism, a hook-type locking mechanism, or the like.

Example 2

As shown in fig. 8 and 9, the overall structure of the battery pack bracket of the present embodiment is basically the same as that of embodiment 1, except that the bracket body 30 is provided with a first lock body 8 and a second lock body 9, specifically, a plurality of second lock bodies 9 are provided at intervals along the outer edge of the bracket body 30, and a plurality of first lock bodies 8 are provided at intervals on the central axis of the bracket body 30 along the longitudinal direction of the vehicle body. Because the locking lever is in threaded connection with the locking hole along the vertical direction, enough electricity exchanging space needs to be reserved in the height direction between the bracket body 30 and the battery pack 10 during electricity exchanging, namely, the electricity exchanging space is reserved in the Z direction of the bracket body 30, the second lock body 9 is positioned at the edge of the bracket body 30, so that the middle part of the battery pack 10 is avoided, and the height of the battery pack 10 is further ensured. Moreover, such a locking mechanism 40 requires that the locking bar is screwed into or out of the locking hole by a special device to lock or unlock, and if the second locking body 9 is also provided on the central shaft, a space for the special device to work is reserved at the corresponding position of the battery pack, which is not beneficial to the integrity of the battery pack 10 and reduces the capacity of the battery pack. Therefore, in this embodiment, the first lock body 8 is disposed on the central shaft, so as to avoid the lock rod penetrating and installed in the middle of the battery pack 10, so that the battery pack 10 is not affected in capacity, and 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.

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

Claims (15)

1. The utility model provides a battery package support, its characterized in that includes the support body, the support body is equipped with at least along the locking mechanism that automobile body length direction interval set up, locking mechanism is used for locking or unblock battery package along vertical direction, the support body through float the unit connect in the automobile body makes the support body is vertically relatively the automobile body floatable.

2. The battery pack holder according to claim 1, wherein the vehicle body has a vehicle beam extending in a longitudinal 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 holder according to claim 2, wherein the floating unit includes an elastic member, a connecting member and a stopper, the connecting member connects the holder body and the vehicle body, respectively, one end of the connecting member is fixed to one of the holder body and the vehicle body, the other end of the connecting member is sequentially provided through the other of the holder body and the vehicle body and the elastic member, and an end portion of the other end of the connecting member is provided with the stopper such that the elastic member is restricted between the holder body or the vehicle body and the stopper.

4. A battery pack support according to claim 3, wherein the bottom plate of the vehicle beam is provided with a through hole for the connecting piece to movably penetrate, the lower end of the elastic piece abuts against the bottom plate, and the upper end of the elastic piece abuts against the limiting piece.

5. A battery pack support according to claim 3, wherein a mounting plate is arranged on the side of the vehicle beam, the mounting plate extends horizontally outwards from the side of the vehicle beam, a through hole is formed in the mounting plate for the connecting piece to movably penetrate through, the lower end of the elastic piece abuts against the mounting plate, and the upper end of the elastic piece abuts against the limiting piece.

6. The battery pack holder 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 for receiving the mounting plate is formed between the connecting portion and the side portion of the vehicle beam, the mounting plate being fixed to the fixing bracket.

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

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

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

10. The battery pack bracket as in claim 9 wherein there are two said vehicle beams, each of said vehicle beams having a plurality of said floating assemblies spaced along the length of said vehicle body for connection to said bracket body.

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

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

13. The battery pack holder according to claim 11, wherein the holder body is provided with the first lock bodies at intervals along a center axis in a longitudinal direction of the vehicle body, and the second lock bodies are provided at intervals along an outer edge of the holder body.

14. An electric vehicle comprising a battery pack support 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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