Battery and vehicle

Abstract

The utility model discloses a battery and a vehicle, the battery is used for the vehicle, the battery comprises: a box body, an energy bin is formed in the box body, and the energy bin accommodates a plurality of battery cells; the energy absorption structure is connected with the energy bin, the energy absorption structure is arranged on at least one side of the front portion or the rear portion of the battery single bodies in the length direction of the battery, the length direction of the battery is parallel to the driving direction of the vehicle, and at least part of the energy absorption structure is located in the middle area of the battery in the width direction of the battery. Therefore, when the vehicle is collided, the energy absorption structure can absorb the collision force, and compared with the prior art, the stress of the single battery in the battery can be reduced, the deformation and damage risk of the single battery can be reduced, and the use reliability of the battery can be improved, so that the reliability of the vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery and a vehicle having the battery. Background Art

[0002] In the related art, the battery is installed on the chassis of the vehicle. When the vehicle collides, the chassis is easily deformed and squeezes the battery, which will cause the battery cells in the battery to deform and be damaged, etc., reducing the reliability of the battery and thus reducing the reliability of the vehicle. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to propose a battery that reduces the risk of deformation and damage of battery cells in the battery when a vehicle collides, improves the reliability of the battery, and thus improves the reliability of the vehicle.

[0004] In a first aspect, an embodiment of the present application provides a battery for a vehicle, comprising:

[0005] A box body, wherein an energy compartment is formed in the box body, and the energy compartment accommodates a plurality of battery cells;

[0006] The energy absorbing structure is connected to the energy bin. Along the length direction of the battery, the energy absorbing structure is arranged on at least one side in front of or behind the multiple battery cells. The length direction of the battery is parallel to the driving direction of the vehicle. Along the width direction of the battery, at least part of the energy absorbing structure is located in the middle area of ​​the battery.

[0007] In the above technical solution, when a vehicle collides, the energy-absorbing structure can absorb the impact force. Compared with the prior art, it can reduce the force on the battery cells in the battery, reduce the risk of deformation and damage of the battery cells, improve the reliability of battery use, and thus improve the reliability of the vehicle.

[0008] In some embodiments, the energy absorbing structure includes a first energy absorbing structure, which is connected to the energy bin; along the width direction of the battery, at least a portion of the first energy absorbing structure is located in the middle area of ​​the battery.

[0009] In the above technical solution, the first energy absorbing structure is connected to the energy bin. When the front of the vehicle is hit, the first energy absorbing structure can absorb at least part of the collision force after being hit. The collision force not absorbed by the first energy absorbing structure can be transmitted to the energy bin, the box body and the vehicle chassis, which can reduce the force on the battery cells in the battery, reduce the risk of squeezing the battery cells in the battery, reduce the risk of deformation and damage of the battery cells in the battery, improve the reliability of battery use, and thus improve the reliability of the vehicle. By arranging at least part of the first energy absorbing structure in the middle area of ​​the battery, when the vehicle is hit head-on, rear-end or offset, it is beneficial for the first energy absorbing structure to absorb the collision force to a greater extent after being hit.

[0010] In some embodiments, the energy bin includes a plurality of side beams, which are connected to enclose the energy bin, and the first energy absorbing structure is fixedly connected to at least one side beam.

[0011] In the above technical solution, the energy bin is arranged by including a plurality of side beams in the energy bin, and the first energy absorbing structure is fixedly connected to at least one side beam, so that the first energy absorbing structure can be fixedly set in the energy bin, thereby achieving the effect of setting the first energy absorbing structure in the energy bin, improving the position stability of the first energy absorbing structure, and facilitating the energy absorption of the first energy absorbing structure.

[0012] In some embodiments, at least a portion of the battery cells abut against at least one side beam.

[0013] In the above technical solution, by at least part of the battery cells abutting against at least one side beam, the side beam can support the battery cells, so that the battery cells can be stably installed in the energy bin, and the number of battery cells can be increased, thereby increasing the energy density of the battery and further increasing the vehicle's cruising range. At the same time, it is also convenient to install the battery in the energy bin.

[0014] In some embodiments, the multiple side beams include two first side beams and two second side beams, the two first side beams are arranged opposite to each other and spaced apart along the length direction of the battery, the two second side beams are arranged opposite to each other and spaced apart along the width direction of the battery, and the first energy absorption structure is connected to at least one of the two first side beams.

[0015] In the above technical solution, by setting two first side beams and two second side beams, the effect of forming an energy bin can be achieved, and the structure of the energy bin can be simplified, which is convenient for the production of the energy bin. Moreover, by connecting the first energy absorbing structure with at least one of the two first side beams, after the first energy absorbing structure is hit, the first energy absorbing structure can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure can be transmitted to the first side beam, and the collision force is transmitted to the two second side beams through the first side beam. The collision force can be transmitted along the energy bin to the box body and other structural parts of the vehicle, so that the collision force is dispersed, and the risk of concentrated force is reduced, which can further reduce the force on the battery cells in the battery, further reduce the risk of squeezing the battery cells in the battery, further reduce the risk of deformation and damage of the battery cells in the battery, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0016] In some embodiments, along the length direction of the battery, the orthographic projection of the first energy absorbing structure and the orthographic projection of the first side beam have an overlapping area.

[0017] In the above technical solution, the orthographic projection of the first energy absorbing structure and the orthographic projection of the corresponding first side beam have an overlapping area along the length direction of the battery. When the first energy absorbing structure is subjected to a collision force, it is beneficial to improve the force transmission performance between the first energy absorbing structure and the first side beam. The first side beam can reliably support the first energy absorbing structure, which is beneficial to improve the supporting effect of the first side beam on the first energy absorbing structure and improve the stability of the first energy absorbing structure when subjected to an external force collision.

[0018] In some embodiments, along the length direction of the battery, the area of ​​the orthographic projection of the first energy absorbing structure is S1, and the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure and the orthographic projection of the first side beam is S2, satisfying: 10%≤S2 / S1≤100%.

[0019] In the above technical solution, by 10%≤S2 / S1≤100%, the area of ​​the overlapping region between the orthographic projection of the first energy absorbing structure and the orthographic projection of the first side beam is appropriate, and when the first energy absorbing structure is subjected to collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure and the first side beam, and the first side beam can more reliably support the first energy absorbing structure, which is more conducive to improving the supporting effect of the first side beam on the first energy absorbing structure, and further improving the stability of the first energy absorbing structure when subjected to external force collision.

[0020] In some embodiments, the orthographic projection of the first energy absorbing structure is completely located within the orthographic projection of the first edge beam.

[0021] In the above technical solution, by locating the orthographic projection of the first energy absorbing structure completely within the orthographic projection of the first side beam along the length direction of the battery, when the first energy absorbing structure is subjected to collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure and the first side beam. The first side beam can more reliably support the first energy absorbing structure, which is more conducive to improving the supporting effect of the first side beam on the first energy absorbing structure, and further improving the stability of the first energy absorbing structure when subjected to external force collision.

[0022] In some embodiments, the energy absorbing structure includes a plurality of first energy absorbing structures arranged along the length direction of the battery, and adjacent first energy absorbing structures along the length direction of the battery are connected.

[0023] In the above technical solution, multiple first energy absorbing structures are arranged along the length direction of the battery, and the adjacent first energy absorbing structures along the length direction of the battery are connected. When the energy absorbing structure is impacted, the multiple first energy absorbing structures can absorb the collision force to achieve a multi-stage energy absorption effect, improve the energy absorption performance of the energy absorbing structure, and reduce the collision force transmitted to the energy bin. This can further reduce the force on the battery cells in the battery, further reduce the risk of squeezing the battery cells in the battery, further reduce the risk of deformation and damage of the battery cells in the battery, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0024] In some embodiments, the energy absorbing structure further includes a first connecting beam, and adjacent first energy absorbing structures along the length direction of the battery are connected by the first connecting beam.

[0025] In the above technical solution, by setting a first connecting beam to connect the adjacent first energy absorbing structures along the length direction of the battery, the connection strength of the adjacent first energy absorbing structures can be improved, the structural strength of the energy absorbing structure can be improved, the stability of the energy absorbing structure when it is hit by external force can be further improved, the energy absorption performance of the energy absorbing structure can be further improved, and when the energy absorbing structure is hit, the collision force transmitted to the energy bin can be further reduced.

[0026] In some embodiments, along the direction away from the energy compartment, the dimensions of each first energy absorbing structure along the width direction of the battery decreases sequentially.

[0027] In the above technical solution, by arranging the dimensions of each first energy absorbing structure along the width direction of the battery to decrease successively in the direction away from the energy bin, the first energy absorbing structure with the largest dimension along the width direction of the battery can be connected to the energy bin, which is beneficial to increase the connection area between the first energy absorbing structure and the energy bin. When the first energy absorbing structure is subjected to collision force, it is more beneficial to improve the force transmission performance between the first energy absorbing structure and the first side beam. The energy bin can more reliably support the first energy absorbing structure, which is more beneficial to improve the supporting effect of the energy bin on the first energy absorbing structure, and further improve the stability of the first energy absorbing structure when subjected to external force collision.

[0028] In some embodiments, the energy absorbing structure includes a plurality of first energy absorbing structures arranged along a width direction of the battery.

[0029] In the above technical solution, the energy absorbing structure includes a plurality of first energy absorbing structures arranged along the width direction of the battery, so that the energy absorption performance of the energy absorbing structure can be improved, and the plurality of first energy absorbing structures arranged along the width direction of the battery can be connected to the energy bin, which is beneficial to increase the connection area between the energy absorbing structure and the energy bin. When the energy absorbing structure is subjected to collision force, it is more beneficial to improve the force transmission performance between the energy absorbing structure and the energy bin. The energy bin can more reliably support the energy absorbing structure, which is more beneficial to improve the supporting effect of the energy bin on the energy absorbing structure, and further improve the stability of the energy absorbing structure when subjected to external force collision.

[0030] In some embodiments, a plurality of first energy absorbing structures are arranged at intervals along the width direction of the battery; or,

[0031] At least two first energy absorbing structures are arranged crosswise; or

[0032] At least two first energy absorbing structures adjacent to each other along the width direction of the battery are connected.

[0033] In the above technical solution, by arranging multiple first energy absorbing structures at intervals along the width direction of the battery, the risk of mutual interference between two adjacent first energy absorbing structures arranged along the width direction of the battery can be reduced. When the multiple first energy absorbing structures arranged at intervals along the width direction of the battery are connected to the energy bin, the multiple first energy absorbing structures transmit force to different positions of the energy bin, so that the force is transmitted to the energy bin in a dispersed manner, thereby reducing the risk of stress concentration in the energy bin, and further reducing the risk of deformation of the energy bin and squeezing of the battery cells in the battery. In addition, the energy bin can more reliably support the energy absorbing structure, which is more conducive to improving the supporting effect of the energy bin on the energy absorbing structure, and further improving the stability of the energy absorbing structure when subjected to external force collision.

[0034] By cross-arranging at least two first energy-absorbing structures, the structural strength of the energy-absorbing structure can be improved, and the energy-absorbing structure can be reliably connected to the energy bin, which is more conducive to improving the supporting effect of the energy bin on the energy-absorbing structure and further improving the stability of the energy-absorbing structure when subjected to external force collision.

[0035] By connecting at least two first energy-absorbing structures adjacent to each other along the width direction of the battery, the structural strength of the energy-absorbing structure can be improved, and the energy-absorbing structure can be reliably connected to the energy bin, which is more conducive to improving the supporting effect of the energy bin on the energy-absorbing structure and further improving the stability of the energy-absorbing structure when subjected to external force collision.

[0036] In some embodiments, the energy absorbing structure further includes a second energy absorbing structure, and along the length direction of the battery, the second energy absorbing structure is located between the first energy absorbing structure and the energy bin.

[0037] In the above technical solution, by locating the second energy absorbing structure between the first energy absorbing structure and the energy bin, the energy absorbing structure can have a multi-stage energy absorbing effect. After the energy absorbing structure is hit, the first energy absorbing structure can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure can be transmitted to the second energy absorbing structure. The second energy absorbing structure further absorbs the collision force, which can further reduce the stress on the battery cells in the battery, further reduce the deformation and damage risks of the battery cells in the battery, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0038] In some embodiments, the second energy absorbing structure is connected to the first energy absorbing structure, and the second energy absorbing structure is connected to the energy bin.

[0039] In the above technical solution, the second energy absorbing structure is connected to the first energy absorbing structure and the energy bin. After the energy absorbing structure is hit, the first energy absorbing structure can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure can be transmitted to the second energy absorbing structure. The second energy absorbing structure further absorbs the collision force, and the collision force not absorbed by the energy absorbing structure is transmitted to the energy bin. The collision force can be transmitted along the energy bin to the box and other structural parts of the vehicle, so that the collision force is dispersed and the risk of concentrated force is reduced. The stress on the battery cell can be further reduced, the risk of deformation and damage of the battery cell can be further reduced, the reliability of battery use can be further improved, and the reliability of the vehicle can be further improved.

[0040] In some embodiments, the energy bin includes a plurality of side beams, which are connected to form the energy bin, and the second energy absorbing structure is fixedly connected to the side beams.

[0041] In the above technical solution, the second energy absorbing structure is connected to the side beam of the energy bin. After the energy absorbing structure is hit, the first energy absorbing structure can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure can be transmitted to the second energy absorbing structure. The second energy absorbing structure further absorbs the collision force, and the collision force not absorbed by the second energy absorbing structure is transmitted to the energy bin. The collision force can be transmitted along the energy bin to the box body and other structural parts of the vehicle, so that the collision force is dispersed and the risk of concentrated force is reduced. The stress on the battery cell can be further reduced, the risk of deformation and damage of the battery cell can be further reduced, the reliability of battery use can be further improved, and the reliability of the vehicle can be further improved.

[0042] In some embodiments, the battery further includes a conductive cross beam located between the first energy absorbing structure and the second energy absorbing structure, and the conductive cross beam connects the first energy absorbing structure and the second energy absorbing structure.

[0043] In the above technical solution, the first energy absorbing structure and the second energy absorbing structure are connected by a conductive crossbeam. After the first energy absorbing structure is hit by a force, the collision force can be transmitted to the second energy absorbing structure through the conductive crossbeam, thereby realizing the force transmission effect from the first energy absorbing structure to the second energy absorbing structure, thereby making the energy absorbing structure have a multi-stage energy absorbing effect.

[0044] In some embodiments, the conductive beam extends along the width of the battery;

[0045] The conductive beam is connected to the housing, or the conductive beam forms a part of the housing.

[0046] In the above technical solution, by connecting the conductive crossbeam to the box, the connection reliability between the energy absorbing structure and the energy bin can be further improved, and the vibration risk of the energy absorbing structure can be reduced. In addition, the conductive crossbeam can support the energy absorbing structure, further improving the stability of the energy absorbing structure when it is hit by external force. By forming a part of the box with the conductive crossbeam, the box structure can be simplified, which is conducive to the lightweight design of the box.

[0047] In some embodiments, along the length direction of the battery, the orthographic projection of the first energy absorbing structure and the orthographic projection of the second energy absorbing structure have an overlapping area.

[0048] In the above technical solution, along the length direction of the battery, the orthographic projection of the first energy absorbing structure and the orthographic projection of the corresponding second energy absorbing structure have an overlapping area. When the first energy absorbing structure is subjected to a collision force, it is beneficial to improve the force transmission performance between the first energy absorbing structure and the second energy absorbing structure. The second energy absorbing structure can reliably support the first energy absorbing structure, which is beneficial to improve the supporting effect of the second energy absorbing structure on the first energy absorbing structure, and improve the stability of the first energy absorbing structure when subjected to an external force collision.

[0049] In some embodiments, the area of ​​the orthographic projection of the first energy absorbing structure is S1, and the area of ​​the overlapping region of the orthographic projection of the first energy absorbing structure and the orthographic projection of the second energy absorbing structure is S3, satisfying: 20%≤S3 / S1≤100%.

[0050] In the above technical solution, through 20%≤S3 / S1≤100%, the area of ​​the overlapping region between the orthographic projection of the first energy absorbing structure and the orthographic projection of the second energy absorbing structure is appropriate, and when the first energy absorbing structure is subjected to collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure and the second energy absorbing structure, and the second energy absorbing structure can more reliably support the first energy absorbing structure, which is more conducive to improving the supporting effect of the second energy absorbing structure on the first energy absorbing structure, and further improving the stability of the first energy absorbing structure when subjected to external force collision.

[0051] In some embodiments, the orthographic projection of the first energy absorbing structure is completely within the orthographic projection of the second energy absorbing structure.

[0052] In the above technical solution, along the length direction of the battery, the orthographic projection of the first energy absorbing structure is completely within the orthographic projection of the second energy absorbing structure. When the first energy absorbing structure is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure and the second energy absorbing structure. The second energy absorbing structure can more reliably support the first energy absorbing structure, which is more conducive to improving the supporting effect of the second energy absorbing structure on the first energy absorbing structure, and further improving the stability of the first energy absorbing structure when subjected to an external force collision.

[0053] In some embodiments, the energy absorbing structure includes a plurality of second energy absorbing structures arranged along the length direction of the battery, and the second energy absorbing structures adjacent to each other along the length direction of the battery are connected.

[0054] In the above technical solution, multiple second energy absorbing structures are arranged along the length direction of the battery, and the second energy absorbing structures adjacent to each other along the length direction of the battery are connected. When the energy absorbing structure is impacted, the multiple second energy absorbing structures can absorb the collision force to achieve more levels of energy absorption effect, further improve the energy absorption performance of the energy absorbing structure, and reduce the collision force transmitted to the energy bin. This can further reduce the force on the battery cell, further reduce the risk of deformation and squeezing of the battery cell by the energy bin, further reduce the risk of deformation and damage of the battery cell, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0055] In some embodiments, the energy absorbing structure further includes a second connecting beam, and adjacent second energy absorbing structures along the length direction of the battery are connected by the second connecting beam.

[0056] In the above technical solution, by setting a second connecting beam to connect the second energy absorbing structures adjacent to each other along the length direction of the battery, the connection strength of the adjacent second energy absorbing structures can be improved, the structural strength of the energy absorbing structure can be further improved, the stability of the energy absorbing structure when subjected to external force collision can be further improved, the energy absorption performance of the energy absorbing structure can be further improved, and when the energy absorbing structure is hit, the collision force transmitted to the energy bin can be further reduced.

[0057] In some embodiments, along the direction away from the energy compartment, the size of each second energy absorbing structure along the width direction of the battery decreases successively.

[0058] In the above technical solution, by arranging the second energy absorbing structures so that the dimensions along the width direction of the battery are successively reduced in the direction away from the energy bin, the second energy absorbing structure with the largest dimension along the width direction of the battery can be connected to the energy bin, which is beneficial to increase the connection area between the second energy absorbing structure and the energy bin. When the second energy absorbing structure is subjected to collision force, it is more beneficial to improve the force transmission performance between the second energy absorbing structure and the energy bin. The energy bin can more reliably support the second energy absorbing structure, which is more beneficial to improve the supporting effect of the energy bin on the second energy absorbing structure, and further improve the stability of the second energy absorbing structure when subjected to external force collision.

[0059] In some embodiments, the energy absorbing structure includes a plurality of second energy absorbing structures arranged along the width direction of the battery.

[0060] In the above technical solution, the energy absorbing structure includes a plurality of second energy absorbing structures arranged along the width direction of the battery, so that the energy absorption performance of the energy absorbing structure can be improved, and the plurality of second energy absorbing structures arranged along the width direction of the battery can be connected to the first side beam, which is beneficial to increase the connection area between the energy absorbing structure and the energy bin. When the energy absorbing structure is subjected to collision force, it is more beneficial to improve the force transmission performance between the energy absorbing structure and the energy bin. The energy bin can more reliably support the energy absorbing structure, which is more beneficial to improve the supporting effect of the energy bin on the energy absorbing structure, and further improve the stability of the energy absorbing structure when subjected to external force collision.

[0061] In some embodiments, a plurality of second energy absorbing structures are arranged at intervals along the width direction of the battery; or,

[0062] At least two second energy absorbing structures are arranged crosswise; or

[0063] At least two second energy absorbing structures adjacent to each other in the width direction of the battery are connected.

[0064] In the above technical solution, by arranging multiple second energy absorbing structures at intervals along the width direction of the battery, the risk of mutual interference between two adjacent second energy absorbing structures arranged along the width direction of the battery can be reduced. When the multiple second energy absorbing structures arranged at intervals along the width direction of the battery are connected to the energy bin, the multiple second energy absorbing structures transmit force to different positions of the first side beam of the energy bin, so that the force is dispersed and transmitted to the energy bin, thereby reducing the risk of stress concentration in the energy bin, and further reducing the risk of deformation and extrusion of the battery cell by the energy bin. In addition, the energy bin can more reliably support the energy absorbing structure, which is more conducive to improving the supporting effect of the energy bin on the energy absorbing structure, and further improving the stability of the energy absorbing structure when it is hit by external force.

[0065] By cross-arranging at least two second energy-absorbing structures, the structural strength of the energy-absorbing structure can be improved, and the energy-absorbing structure can be reliably connected between the conductive beam and the energy bin, which is more conducive to improving the supporting effect of the energy bin on the energy-absorbing structure and further improving the stability of the energy-absorbing structure when subjected to external force collision.

[0066] By connecting at least two second energy-absorbing structures adjacent to each other along the width direction of the battery, the structural strength of the energy-absorbing structure can be improved, and the energy-absorbing structure can be reliably connected between the conductive beam and the energy bin, which is more conducive to improving the supporting effect of the energy bin on the energy-absorbing structure and further improving the stability of the energy-absorbing structure when subjected to external force collision.

[0067] In some embodiments, the first energy absorbing structure includes at least one of an energy absorbing box, a buffer frame, a spring, and an air bag; and / or

[0068] The second energy absorbing structure includes at least one of an energy absorbing box, a buffer frame, a spring and an air bag.

[0069] In the above technical solution, by at least one of the first energy absorbing structure and the second energy absorbing structure including at least one of an energy absorbing box, a buffer frame, a spring and an airbag, at least one of the first energy absorbing structure and the second energy absorbing structure can have energy absorbing performance, so that the energy absorbing structure meets the working requirements and can improve the energy absorbing effect of the energy absorbing structure.

[0070] In some embodiments, the energy absorbing box has a hollow cavity that penetrates the energy absorbing box along the length direction of the battery.

[0071] In the above technical solution, the energy absorption box has a hollow cavity that penetrates the energy absorption box along the length direction of the battery, so that the energy absorption box can have energy absorption performance, which is beneficial to improving the energy absorption capacity of the energy absorption box. In addition, the structure of the energy absorption box can be simplified, which is convenient for the production and manufacturing of the energy absorption box.

[0072] In some embodiments, the buffer frame encloses a buffer cavity.

[0073] In the above technical solution, the buffer cavity is formed by enclosing the buffer frame, which can make the buffer frame have energy absorption performance, which is beneficial to improving the energy absorption capacity of the buffer frame, and can simplify the buffer frame structure and facilitate the production of the buffer frame.

[0074] In some embodiments, at least one of an energy absorbing box, a spring and an air bag is disposed in the buffer cavity.

[0075] In the above technical solution, by arranging at least one of an energy absorption box, a spring and an airbag in the buffer cavity, the energy absorption performance of the energy absorption structure can be improved. After the energy absorption structure is hit, the energy absorption structure can absorb more collision force, which can further reduce the force on the battery cell, further reduce the risk of deformation and squeezing of the battery cell by the energy bin, further reduce the risk of deformation and damage of the battery cell, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0076] In some embodiments, an electrical compartment is also formed in the box body, and the electrical compartment is used to accommodate electrical components electrically connected to the battery cells. Along the driving direction of the vehicle, the energy compartment is located in front of the electrical compartment.

[0077] In the above technical solution, the energy compartment is located in front of the electrical compartment, and the electrical components electrically connected to the battery cells in the energy compartment are arranged in the electrical compartment. When a collision occurs in front of the vehicle, the collision force is transmitted from the front to the rear of the battery. Since the collision force gradually decreases when it is transmitted backward, the force on the electrical components can be reduced, reducing the risk of short circuit caused by squeezing the electrical components, thereby further improving the reliability of battery use.

[0078] In some embodiments, a connecting longitudinal beam is provided in the energy compartment, and the connecting longitudinal beam extends along the length direction of the battery.

[0079] In the above technical solution, by arranging a connecting longitudinal beam in the energy bin, after the battery cell is installed in the energy bin, the connecting longitudinal beam can support the battery cell, so that the battery cell can be more firmly installed in the energy bin, and when the connecting longitudinal beam is fixedly connected to the energy bin, after the collision force is transmitted to the energy absorption structure, a part of the collision force can be transmitted to the connecting longitudinal beam, and the collision force is transmitted backward along the connecting longitudinal beam, which can further reduce the force on the battery cell, further reduce the risk of deformation and squeezing of the battery cell by the energy bin, further reduce the risk of deformation and damage of the battery cell, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0080] In some embodiments, the energy bin includes a plurality of side beams, which are connected to enclose the energy bin; the plurality of side beams include two first side beams and two second side beams, the two first side beams are oppositely and spaced apart along the length direction of the battery, and the two second side beams are oppositely and spaced apart along the width direction of the battery; the connecting longitudinal beam is connected between the two first side beams.

[0081] In the above technical solution, by connecting the longitudinal beam between the two first side beams, after the collision force is transmitted to the first side beam on the front side of the energy bin, part of the collision force can be transmitted to the connecting longitudinal beam and transmitted along the connecting longitudinal beam to the rear of the energy bin, and part of the collision force is transmitted along the front first side beam to the two second side beams, and the collision force on the second side beam is transmitted along the second side beam to the rear of the battery, so that the collision force is dispersed, which can further reduce the force on the battery cell, further reduce the risk of deformation and squeezing of the battery cell by the energy bin, further reduce the risk of deformation and damage of the battery cell, further improve the reliability of battery use, and thus further improve the reliability of the vehicle.

[0082] In a second aspect, an embodiment of the present application further provides a vehicle, comprising a chassis and the above-mentioned battery, wherein the battery is mounted on the chassis, the energy absorbing structure is fixedly connected to the chassis, and at least a portion of the energy absorbing structure is located in the middle area of ​​the chassis.

[0083] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0085] Figure 1 is a schematic diagram of a vehicle according to an embodiment of the present application;

[0086] Figure 2is a schematic diagram of a battery installed on a chassis according to an embodiment of the present application;

[0087] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0088] Figure 4 is a bottom view of a battery according to the first embodiment of the present application;

[0089] Figure 5 is a bottom view of a battery according to a second embodiment of the present application;

[0090] Figure 6 is a bottom view of a battery according to a third embodiment of the present application;

[0091] Figure 7 is a bottom view of a battery according to a fourth embodiment of the present application;

[0092] Figure 8 is a bottom view of a battery according to a fifth embodiment of the present application;

[0093] Fig. 9 is a schematic diagram of the arrangement of the second energy absorbing structure according to the first embodiment of the present application;

[0094] Fig.10 is a schematic diagram of the second energy absorption structure arrangement according to the second embodiment of the present application;

[0095] Fig.11 is a schematic diagram of the arrangement of a second energy absorbing structure according to the third embodiment of the present application;

[0096] Fig.12 is a schematic diagram of the arrangement of a second energy absorbing structure according to the fourth embodiment of the present application;

[0097] Fig.13 is a schematic diagram of the arrangement of a second energy absorbing structure according to the fifth embodiment of the present application;

[0098] Fig.14 is a schematic diagram of the arrangement of a second energy absorbing structure according to the sixth embodiment of the present application;

[0099] Fig.15 is a schematic diagram of the second energy absorption structure arrangement according to the seventh embodiment of the present application;

[0100] Fig.16 is a schematic diagram of the arrangement of a second energy absorbing structure according to the eighth embodiment of the present application;

[0101] Fig.17 is a schematic diagram of the energy absorption structure arrangement according to the first embodiment of the present application;

[0102] Fig.18 is a schematic diagram of the energy absorption structure arrangement according to the second embodiment of the present application;

[0103] Fig.19 is a schematic diagram of the energy absorption structure arrangement according to the third embodiment of the present application;

[0104] Fig. 20 is a schematic diagram of the energy absorption structure arrangement according to the fourth embodiment of the present application;

[0105] Fig.21 is a schematic diagram of the energy absorption structure arrangement according to the fifth embodiment of the present application;

[0106] Fig. 22 is a cross-sectional view of an energy absorption box according to a first embodiment of the present application;

[0107] Fig.23 is a cross-sectional view of an energy absorption box according to a second embodiment of the present application;

[0108] Fig.24 is a cross-sectional view of an energy absorption box according to a third embodiment of the present application;

[0109] Fig.25 is a cross-sectional view of an energy absorption box according to a fourth embodiment of the present application;

[0110] Fig.26 It is a cross-sectional view of the energy absorption box according to the fifth embodiment of the present application.

[0111] Reference numerals:

[0112] Battery 300;

[0113] Box 10;

[0114] Energy bin 11; side beam 111; first side beam 112; second side beam 113;

[0115] Battery cell 12; electrical compartment 15; third connecting beam 16;

[0116] Energy absorbing structure 20;

[0117] A first energy absorbing structure 21; a first connecting beam 30;

[0118] Energy absorption box 211; hollow cavity 2111;

[0119] Buffer frame 212; Buffer cavity 2121;

[0120] Connecting part 213;

[0121] A second energy absorbing structure 22; a second connecting beam 221;

[0122] Conducting cross beam 40; connecting longitudinal beam 60;

[0123] Mounting bracket 80;

[0124] Vehicle 200; controller 201; motor 202;

[0125] Chassis 100 ; front floor 101 . DETAILED DESCRIPTION

[0126] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0127] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0128] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0129] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0130] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, C and / or D can represent: C exists alone, C and D exist at the same time, and D exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0131] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0132] The term "plurality" used in the present application refers to two or more (including two).

[0133] In the present application, the battery may be a battery pack, in which a plurality of battery cells are arranged.

[0134] In the present application, battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0135] The battery pack mentioned in the embodiments of the present application refers to a single physical module including multiple battery cells or multiple battery modules to provide higher voltage and capacity. The battery pack generally includes a box for encapsulating multiple battery cells or multiple battery modules. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0136] The battery module mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.

[0137] The battery cell includes a shell, an electrode assembly and an electrolyte, and the shell is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode collector. The positive electrode collector not coated with the positive electrode active material layer protrudes from the positive electrode collector coated with the positive electrode active material layer. The positive electrode collector not coated with the positive electrode active material layer serves as a positive electrode ear. Taking lithium-ion batteries as an example, the material of the positive electrode collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector not coated with the negative electrode active material layer protrudes from the negative electrode current collector coated with the negative electrode active material layer. The negative electrode current collector not coated with the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that a large current passes without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.

[0138] The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0139] In recent years, new energy vehicles have developed by leaps and bounds. In the field of electric vehicles, batteries, as the power source of electric vehicles, play an irreplaceable and important role. As the core components of new energy vehicles, batteries have high requirements in terms of reliability.

[0140] The battery is installed on the chassis of the vehicle. When the vehicle collides, the chassis is easily deformed and squeezed, which will cause the battery cells inside the battery to deform and be damaged, reducing the reliability of the battery and thus reducing the reliability of the vehicle.

[0141] Based on the above considerations, in order to solve the problems of deformation and damage of battery cells in the battery when the vehicle collides, after in-depth research, a battery is designed, which includes: a box body, an energy bin is formed in the box body, and the energy bin contains multiple battery cells; an energy absorption structure, the energy absorption structure is connected to the energy bin, and along the length direction of the battery, the energy absorption structure is arranged on at least one side in front of or behind the multiple battery cells, the length direction of the battery is parallel to the driving direction of the vehicle, and along the width direction of the battery, at least part of the energy absorption structure is located in the middle area of ​​the battery. When the vehicle collides, the energy absorption structure can absorb the impact force, reduce the force on the battery cells in the battery, reduce the risk of deformation and damage of the battery cells, improve the reliability of the battery, and thus improve the reliability of the vehicle.

[0142] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 200 provided for some embodiments of the present application. The vehicle 200 may be a fuel vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. The battery 300 is installed on the chassis 100 of the vehicle 200. The battery 300 can be used to power the vehicle 200, for example, the battery 300 can be used as an operating power source for the vehicle 200. The vehicle 200 may also include a controller 201 and a motor 202, and the controller 201 is used to control the battery 300 to power the motor 202, for example, for starting, navigating, and driving the vehicle 200. Working power requirements.

[0143] In some embodiments of the present application, the battery 300 can not only serve as the operating power source of the vehicle 200, but also serve as the driving power source of the vehicle 200, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200.

[0144] Reference below Figure 1-Figure 26 The battery 300 according to the embodiment of the present application is described, and the battery 300 can be installed in the chassis 100 of the vehicle 200 .

[0145] like Figure 2 and Fig.13 As shown, according to the battery 300 of the embodiment of the present application, the battery 300 is used in the vehicle 200, and the battery 300 includes: a box body 10, an energy bin 11 is formed in the box body 10, and the energy bin 11 accommodates a plurality of battery cells 12; an energy absorption structure 20, the energy absorption structure 20 is connected to the energy bin 11, and along the length direction of the battery 300, the energy absorption structure 20 is arranged on at least one side in front of or behind the plurality of battery cells 12, the length direction of the battery 300 is parallel to the driving direction of the vehicle 200, and along the width direction of the battery 300, at least part of the energy absorption structure 20 is located in the middle area of ​​the battery 300.

[0146] Among them, the battery 300 includes a box body 10 and an energy absorption structure 20. An energy bin 11 is formed in the box body 10. It should be noted that the energy bin 11 defines an installation space, and a plurality of battery cells 12 are installed in the installation space. The energy absorption structure 20 may include an energy absorption box 211, an energy absorption space, a buffer frame 212, etc. The energy absorption structure 20 may be welded to the energy bin 11, the energy absorption structure 20 may also be installed to the energy bin 11 by bolts, and the energy absorption structure 20 may also be indirectly installed to the energy bin 11 by a universal adapter. Along the length direction of the battery 300, the length direction of the battery 300 is parallel to the driving direction of the vehicle 200, that is, along the front and rear direction of the vehicle 200. It can also be understood that along the length direction of the vehicle 200, the length direction of the battery 300 is Figure 2 In the X direction, the energy absorbing structure 20 is arranged on at least one side in front of or behind the multiple battery cells 12. It should be explained that the energy absorbing structure 20 is arranged in front of the multiple battery cells 12, or the energy absorbing structure 20 is arranged behind the multiple battery cells 12, or the energy absorbing structure 20 is arranged in front and behind the multiple battery cells 12. The present application takes the energy absorbing structure 20 arranged in front of the multiple battery cells 12 as an example for explanation. As an example, the energy absorbing structure 20 may be located inside the box body 10. As another example, the energy absorbing structure 20 may also be located outside the box body 10, and the energy absorbing structure 20 is located in front of the energy bin 11. As another example, part of the energy absorbing structure 20 is located inside the box body 10, and another part of the energy absorbing structure 20 is located outside the box body 10. However, the present application is not limited to this, and the energy absorbing structure 20 may be arranged on at least one side in front of or behind the multiple battery cells 12.

[0147] Along the width direction of the battery 300, that is, along the width direction of the vehicle 200, the width direction of the battery 300 is Figure 2 In the Y direction, at least part of the energy absorbing structure 20 is located in the middle area of ​​the battery 300. The energy absorbing structure 20 can be partially installed in the middle area of ​​the battery 300, or the energy absorbing structure 20 can be installed in the middle area of ​​the battery 300 as a whole. Along the width direction of the battery 300, the battery 300 has a midline extending along the length direction of the battery 300. The middle area refers to the area covered by a certain distance on both sides of the midline of the battery 300 along the width direction of the battery 300. As an example, the middle area refers to the area covered by 50 cm on both sides of the midline of the battery 300 along the width direction of the battery 300.

[0148] The present application takes the example of an energy absorbing structure 20 being arranged in front of a plurality of battery cells 12. When the vehicle 200 is moving forward, the vehicle 200 is stopped, or the vehicle 200 is moving backward, and when the front of the vehicle 200 is hit, for example, when the vehicle 200 is moving forward at a high speed (for example, a driving speed of more than 100 kph) and collides, after the energy absorbing structure 20 is hit, the energy absorbing structure 20 can absorb at least part of the collision force, and the collision force not absorbed by the energy absorbing structure 20 can be transmitted to the energy bin 11, the box body 10, and the chassis 100 of the vehicle 200, and the collision force can be transmitted along the chassis 100 to other structures of the vehicle 200. The energy-absorbing structure 20 can disperse the collision force and reduce the risk of concentrated force. Compared with the prior art, it can reduce the force on the battery cell 12 in the battery 300, reduce the risk of squeezing the battery cell 12, reduce the risk of deformation and damage of the battery cell 12 in the battery 300, improve the reliability of the battery 300, and thus improve the reliability of the vehicle 200, which is conducive to solving the reliability problem of the battery 300 when the vehicle 200 is traveling at high speed. When the vehicle 200 collides at high speed, it can reduce the risk of deformation and damage of the battery cell 12 in the battery 300. By arranging at least part of the energy-absorbing structure 20 in the middle area of ​​the battery 300, when the vehicle 200 is hit head-on, rear-end or offset, it is conducive to the energy-absorbing structure 20 being able to absorb the collision force to a greater extent after being hit.

[0149] Similarly, when an energy-absorbing structure 20 is provided behind a plurality of battery cells 12, when the rear of the vehicle 200 is hit, the energy-absorbing structure 20 can absorb at least part of the collision force, and the collision force not absorbed by the energy-absorbing structure 20 can be transmitted to the energy bin 11, the box body 10 and the chassis 100 of the vehicle 200. The collision force can be transmitted along the chassis 100 to other structural parts of the vehicle 200, so as to disperse the collision force and reduce the risk of concentrated force. The stress on the battery cells 12 in the battery 300 can be reduced, the risk of squeezing the battery cells 12 in the battery 300 can be reduced, the risk of deformation and damage of the battery cells 12 in the battery 300 can be reduced, and the reliability of the battery 300 can be improved, thereby improving the reliability of the vehicle 200.

[0150] In the above technical solution, by arranging the energy absorbing structure 20 on at least one side in front of or behind the plurality of battery cells 12, when the vehicle 200 collides, the energy absorbing structure 20 can absorb the impact force. Compared with the prior art, the force on the battery cells 12 in the battery 300 can be reduced, the risk of squeezing the battery cells 12 can be reduced, the risk of deformation and damage of the battery cells 12 in the battery 300 can be reduced, and the reliability of the battery 300 can be improved, thereby improving the reliability of the vehicle 200, which is conducive to solving the reliability problem of the battery 300 when the vehicle 200 is traveling at high speed. When the vehicle 200 collides at high speed, the risk of deformation and damage of the battery cells 12 in the battery 300 can be reduced. By arranging at least part of the energy absorbing structure 20 in the middle area of ​​the battery 300, when the vehicle 200 collides head-on, rear-end or offset, it is conducive to the energy absorbing structure 20 being able to absorb the collision force to a greater extent after being hit.

[0151] According to some embodiments of the present application, Figure 2 As shown, the energy absorption structure 20 includes a first energy absorption structure 21 , which is connected to the energy bin 11 ; along the width direction of the battery 300 , at least a portion of the first energy absorption structure 21 is located in the middle area of ​​the battery 300 .

[0152] Among them, the energy absorption structure 20 may include a first energy absorption structure 21, and the first energy absorption structure 21 may include an energy absorption box 211, an energy absorption space, etc. The first energy absorption structure 21 may be located outside the box body 10, or the first energy absorption structure 21 may be located inside the box body 10. The first energy absorption structure 21 is connected to the energy bin 11, the first energy absorption structure 21 may be welded to the energy bin 11, the first energy absorption structure 21 may be installed to the energy bin 11 by bolts, or the first energy absorption structure 21 may be indirectly assembled to the energy bin 11 by other structural parts. Along the width direction of the battery 300, at least part of the first energy absorption structure 21 is located in the middle area of ​​the battery 300.

[0153] When the front of the vehicle 200 is hit, after the first energy absorbing structure 21 is hit, the first energy absorbing structure 21 can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the energy bin 11, the box body 10 and the chassis 100 of the vehicle 200, and the collision force can be transmitted along the chassis 100 to other structural parts of the vehicle 200, so that the collision force is dispersed, the risk of concentrated force can be reduced, the force on the battery cell 12 in the battery 300 can be reduced, the risk of squeezing the battery cell 12 in the battery 300 can be reduced, and the risk of deformation and damage of the battery cell 12 in the battery 300 can be reduced, and the reliability of the battery 300 can be improved, thereby improving the reliability of the vehicle 200, which is conducive to solving the reliability problem of the battery 300 when the vehicle 200 is traveling at high speed. By setting at least part of the first energy absorbing structure 21 in the middle area of ​​the battery 300, when the vehicle 200 is hit head-on, rear-end or offset, it is conducive to the first energy absorbing structure 21 being able to absorb the collision force to a large extent after being hit.

[0154] In the above technical solution, the first energy absorbing structure 21 is connected to the energy bin 11. When the front of the vehicle 200 is hit, the first energy absorbing structure 21 can absorb at least part of the collision force after being hit. The collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the energy bin 11, the box body 10 and the chassis 100 of the vehicle 200, which can reduce the force on the battery cells 12 in the battery 300, reduce the risk of squeezing the battery cells 12 in the battery 300, reduce the risk of deformation and damage of the battery cells 12 in the battery 300, improve the reliability of the battery 300, and thus improve the reliability of the vehicle 200. By arranging at least part of the first energy absorbing structure 21 in the middle area of ​​the battery 300, when the vehicle 200 is hit head-on, rear-end or offset, it is beneficial for the first energy absorbing structure 21 to absorb the collision force to a greater extent after being hit.

[0155] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, the energy bin 11 includes a plurality of side beams 111 , and the plurality of side beams 111 are connected to enclose the energy bin 11 , and the first energy absorbing structure 21 is fixedly connected to at least one side beam 111 .

[0156] Among them, the energy bin 11 may include a plurality of side beams 111, for example: the energy bin 11 may include two, three, four, five, six, etc. number of side beams 111, and the plurality of side beams 111 are sequentially connected and enclosed to form the energy bin 11, and an installation space for installing the battery cell 12 is formed between the plurality of side beams 111. The present application is described by taking the energy bin 11 including four side beams 111 as an example. The first energy absorption structure 21 is fixedly connected to at least one side beam 111, and the first energy absorption structure 21 may be welded to the side beam 111, or the first energy absorption structure 21 may be installed to the corresponding side beam 111 by bolts. The first energy absorption structure 21 may be located in front of the energy bin 11, or the first energy absorption structure 21 may be located behind the energy bin 11, or the first energy absorption structure 21 may be provided in front and behind the energy bin 11, and in this case, the first energy absorption structure 21 is located outside the energy bin 11. Alternatively, the first energy absorbing structure 21 is located inside the energy bin 11, the first energy absorbing structure 21 can be located in front of the multiple battery cells 12, the first energy absorbing structure 21 can also be located behind the multiple battery cells 12, or the first energy absorbing structure 21 is provided in front of and behind the multiple battery cells 12. This application takes the example that the first energy absorbing structure 21 can be located in front of the energy bin 11 for explanation.

[0157] In the above technical solution, the energy bin 11 includes a plurality of side beams 111 to realize the arrangement of the energy bin 11. The first energy absorbing structure 21 is fixedly connected to at least one side beam 111, so that the first energy absorbing structure 21 can be fixedly set on the energy bin 11, thereby realizing the effect of setting the first energy absorbing structure 21 on the energy bin 11, improving the position stability of the first energy absorbing structure 21, and facilitating the energy absorption of the first energy absorbing structure 21.

[0158] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, at least a portion of the battery cells 12 abut against at least one side beam 111 .

[0159] Among them, after multiple battery cells 12 are installed in the installation space of the energy bin 11, some of the battery cells 12 can abut against at least one side beam 111, or all of the battery cells 12 can abut against at least one side beam 111. The battery cells 12 abutting against the side beam 111 can abut against at least one side beam 111.

[0160] In the above technical solution, by at least part of the battery cells 12 abutting against at least one side beam 111, the side beam 111 can support the battery cells 12, so that the battery cells 12 can be stably assembled in the energy bin 11, and the number of battery cells 12 can be increased, thereby increasing the energy density of the battery 300 and further increasing the cruising range of the vehicle 200. At the same time, it is also convenient to assemble the battery 300 in the energy bin 11.

[0161] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, the multiple side beams 111 include two first side beams 112 and two second side beams 113. The two first side beams 112 are arranged opposite to each other and spaced apart along the length direction of the battery 300, and the two second side beams 113 are arranged opposite to each other and spaced apart along the width direction of the battery 300. The first energy absorbing structure 21 is connected to at least one of the two first side beams 112.

[0162] The plurality of side beams 111 include two first side beams 112 and two second side beams 113, the two first side beams 112 both extend along the width direction of the battery 300, and the two second side beams 113 both extend along the length direction of the battery 300. The two first side beams 112 are arranged oppositely and spaced apart along the length direction of the battery 300, and the spacing distance between the two first side beams 112 can be reasonably designed according to the size of the energy bin 11, and along the length direction of the battery 300, the orthographic projections of the two first side beams 112 can have an overlapping area. The two second side beams 113 are arranged oppositely and spaced apart along the width direction of the battery 300, and the spacing distance between the two second side beams 113 can be reasonably designed according to the size of the energy bin 11, and along the width direction of the battery 300, the orthographic projections of the two second side beams 113 can have an overlapping area, and the second side beams 113 can be the outer frame of the box body 10. Each first side beam 112 is fixedly connected to the two second side beams 113. The first side beam 112 can be welded to the second side beam 113, or the first side beam 112 can be connected to the second side beam 113 by bolts. The first energy absorbing structure 21 is connected to at least one of the two first side beams 112. It can be understood that the first energy absorbing structure 21 can be connected to the first side beam 112 located in the front, or to the first side beam 112 located in the rear, or to both first side beams 112. The first energy absorbing structure 21 connected to the first side beam 112 in the front is located in front of the first side beam 112 in the front, and the first energy absorbing structure 21 connected to the first side beam 112 in the rear is located behind the first side beam 112 in the rear. The present application takes the example of the first side beam 112 located in the front being connected to the first energy absorbing structure 21. Alternatively, it can be understood that the first energy absorbing structure 21 is connected to at least one first side beam 112.

[0163] In the above technical solution, by providing two first side beams 112 and two second side beams 113, the effect of forming the energy bin 11 can be achieved, and the structure of the energy bin 11 can be simplified, which is convenient for the production of the energy bin 11. Moreover, by connecting the first energy absorbing structure 21 with at least one of the two first side beams 112, after the first energy absorbing structure 21 is hit, the first energy absorbing structure 21 can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the first side beam 112, and the collision force is transmitted to the two second side beams 113 through the first side beam 112. The collision force can be transmitted along the energy bin 11 to the box body 10 and other structural parts of the vehicle 200, so that the collision force is dispersed, and the risk of concentrated force is reduced, which can further reduce the force on the battery cell 12 in the battery 300, further reduce the risk of squeezing the battery cell 12 in the battery 300, further reduce the risk of deformation and damage of the battery cell 12 in the battery 300, further improve the reliability of the battery 300, and further improve the reliability of the vehicle 200.

[0164] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, along the length direction of the battery 300 , the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 have an overlapping area.

[0165] Among them, along the length direction of the battery 300, the orthographic projection of the first energy absorption structure 21 and the orthographic projection of the first side beam 112 have an overlapping area, the orthographic projection of the first energy absorption structure 21 connected to the front first side beam 112 along the length direction of the battery 300 and the orthographic projection of the front first side beam 112 have an overlapping area, and the orthographic projection of the first energy absorption structure 21 connected to the rear first side beam 112 along the length direction of the battery 300 and the orthographic projection of the rear first side beam 112 have an overlapping area.

[0166] In the above technical solution, the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the corresponding first side beam 112 have an overlapping area along the length direction of the battery 300. When the first energy absorbing structure 21 is subjected to a collision force, it is beneficial to improve the force transmission performance between the first energy absorbing structure 21 and the first side beam 112. The first side beam 112 can reliably support the first energy absorbing structure 21, which is beneficial to improve the supporting effect of the first side beam 112 on the first energy absorbing structure 21, and improve the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0167] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, along the length direction of the battery 300, the area of ​​the orthographic projection of the first energy absorbing structure 21 is S1, and the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 is S2, satisfying: 10%≤S2 / S1≤100%.

[0168] Among them, along the length direction of the battery 300, the area of ​​the orthographic projection of the first energy absorbing structure 21 is S1, and the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 is S2. The unit of the area of ​​the orthographic projection of the first energy absorbing structure 21 can be reasonably selected and designed according to actual conditions, and the unit of the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 can be reasonably selected and designed according to actual conditions. S2 / S1 can be 10%, 11%, 15%, 20%, 25%, 30%, 40%, 43%, 45%, 50%, 55%, 60%, 61%, 70%, 80%, 90%, 93%, 95%, 100% and other values. When S2 / S1 is less than 10%, the area of ​​the overlapped region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 is small, and when the first energy absorbing structure 21 is subjected to a collision force, the force transmission performance between the first energy absorbing structure 21 and the first side beam 112 is poor, and the supporting effect of the first side beam 112 on the first energy absorbing structure 21 is poor, and the stability of the first energy absorbing structure 21 when subjected to an external force collision is poor. Therefore, by 10%≤S2 / S1≤100%, the area of ​​the overlapped region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 is appropriate, and when the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the first side beam 112, and the first side beam 112 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the first side beam 112 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0169] In the above technical solution, by 10%≤S2 / S1≤100%, the area of ​​the overlapping region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the first side beam 112 is appropriate, and when the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the first side beam 112, and the first side beam 112 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the first side beam 112 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0170] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, the orthographic projection of the first energy absorbing structure 21 is completely located within the orthographic projection of the first side beam 112 .

[0171] Among them, along the length direction of the battery 300, the orthographic projection of the first energy absorbing structure 21 is completely located in the orthographic projection of the first side beam 112 connected thereto, the orthographic projection of the first energy absorbing structure 21 connected to the front first side beam 112 along the length direction of the battery 300 is completely located in the orthographic projection of the front first side beam 112, and the orthographic projection of the first energy absorbing structure 21 connected to the rear first side beam 112 along the length direction of the battery 300 is completely located in the orthographic projection of the rear first side beam 112. Along the length direction of the battery 300, the orthographic projection of the first energy absorbing structure 21 is completely located in the orthographic projection of the corresponding first side beam 112, so that the first energy absorbing structure 21 and the corresponding first side beam 112 are arranged opposite to each other along the length direction of the battery 300.

[0172] In the above technical solution, by making the orthographic projection of the first energy absorbing structure 21 completely within the orthographic projection of the first side beam 112 along the length direction of the battery 300, when the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the first side beam 112, and the first side beam 112 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the first side beam 112 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0173] According to some embodiments of the present application, Fig.17 As shown, the energy absorbing structure 20 may include only one first energy absorbing structure 21 .

[0174] According to some embodiments of the present application, the shape of the cross section of the first energy absorbing structure 21 perpendicular to the height direction of the battery 300 may be a triangle, a rectangle, a trapezoid or other polygons.

[0175] According to some embodiments of the present application, Fig.18 As shown, the energy absorbing structure 20 includes a plurality of first energy absorbing structures 21 arranged along the length direction of the battery 300 , and the first energy absorbing structures 21 adjacent to each other along the length direction of the battery 300 are connected.

[0176] The energy absorbing structure 20 may include a plurality of first energy absorbing structures 21, which are arranged along the length direction of the battery 300. Adjacent first energy absorbing structures 21 are connected along the length direction of the battery 300. Fig.18 As shown, adjacent first energy absorbing structures 21 may be directly connected, and adjacent first energy absorbing structures 21 may be connected by welding or bolting, but the present application is not limited thereto. Adjacent first energy absorbing structures 21 may also be indirectly connected by beams, and the first energy absorbing structures 21 and the beams may be connected by welding or bolting.

[0177] In the above technical solution, multiple first energy absorbing structures 21 are arranged along the length direction of the battery 300, and the adjacent first energy absorbing structures 21 along the length direction of the battery 300 are connected. When the energy absorbing structure 20 is impacted, the multiple first energy absorbing structures 21 can absorb the collision force to achieve a multi-stage energy absorption effect, improve the energy absorption performance of the energy absorbing structure 20, and reduce the collision force transmitted to the energy bin 11. The force on the battery cells 12 in the battery 300 can be further reduced, the risk of squeezing the battery cells 12 in the battery 300 can be further reduced, and the risk of deformation and damage of the battery cells 12 in the battery 300 can be further reduced, thereby further improving the reliability of the battery 300 and further improving the reliability of the vehicle 200.

[0178] According to some embodiments of the present application, Fig.18 As shown, the energy absorbing structure 20 further includes a first connecting beam 30 , and the adjacent first energy absorbing structures 21 along the length direction of the battery 300 are connected by the first connecting beam 30 .

[0179] Among them, the energy absorption structure 20 can also include a first connecting beam 30. Along the length direction of the battery 300, adjacent first energy absorption structures 21 are connected by the first connecting beam 30. The first connecting beam 30 is connected between adjacent first energy absorption structures 21. The first energy absorption structure 21 and the first connecting beam 30 are connected by welding or bolting.

[0180] In the above technical solution, by setting a first connecting beam 30 connected between adjacent first energy absorbing structures 21 along the length direction of the battery 300, the connection strength of the adjacent first energy absorbing structures 21 can be improved, the structural strength of the energy absorbing structure 20 can be improved, the stability of the energy absorbing structure 20 when it is hit by external force can be further improved, the energy absorption performance of the energy absorbing structure 20 can be further improved, and when the energy absorbing structure 20 is hit, the collision force transmitted to the energy bin 11 can be further reduced.

[0181] According to some embodiments of the present application, Fig.18 As shown, along the direction away from the energy bin 11 , the dimensions of each first energy absorbing structure 21 along the width direction of the battery 300 decreases successively.

[0182] Among them, the direction away from the energy bin 11 is parallel to the driving direction of the vehicle 200; when multiple first energy absorbing structures 21 are arranged at the front side of the energy bin 11, along the direction away from the energy bin 11, in other words, the vehicle 200 is moving forward, along the driving direction of the vehicle 200, that is, from the rear to the front direction of the vehicle 200, the size of each first energy absorbing structure 21 along the width direction of the battery 300 is reduced in sequence. When multiple first energy absorbing structures 21 are arranged at the rear side of the energy bin 11, the vehicle 200 is moving backward, and along the driving direction of the vehicle 200, that is, from the front to the rear direction of the vehicle 200, the size of each first energy absorbing structure 21 along the width direction of the battery 300 is reduced in sequence.

[0183] In the above technical solution, by arranging the dimensions of each first energy absorbing structure 21 along the width direction of the battery 300 to decrease successively along the direction away from the energy bin 11, the first energy absorbing structure 21 with the largest dimension along the width direction of the battery 300 can be connected to the energy bin 11, which is beneficial to increase the connection area between the first energy absorbing structure 21 and the energy bin 11. When the first energy absorbing structure 21 is subjected to a collision force, it is more beneficial to improve the force transmission performance between the first energy absorbing structure 21 and the first side beam 112. The energy bin 11 can more reliably support the first energy absorbing structure 21, which is more beneficial to improve the supporting effect of the energy bin 11 on the first energy absorbing structure 21, and further improve the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0184] According to some embodiments of the present application, the energy absorbing structure 20 includes a plurality of first energy absorbing structures 21 arranged along the width direction of the battery 300 .

[0185] The energy absorption structure 20 includes a plurality of first energy absorption structures 21, and the plurality of first energy absorption structures 21 may be arranged in sequence along the width direction of the battery 300. Alternatively, a portion of the plurality of first energy absorption structures 21 may be arranged in sequence along the width direction of the battery 300, and another portion of the plurality of first energy absorption structures 21 may be arranged in the length direction of the battery 300. Alternatively, the plurality of first energy absorption structures 21 may form a plurality of energy absorption groups, each energy absorption group includes a plurality of first energy absorption structures 21, and the plurality of first energy absorption structures 21 in each group may be arranged in the width direction of the battery 300, and the plurality of energy absorption groups may be arranged in sequence along the length direction of the battery 300, and two adjacent energy absorption groups may be connected by a first connecting beam 30.

[0186] like Fig.19 As shown, as an example, the energy absorption structure 20 includes four first energy absorption structures 21, three first energy absorption structures 21 are arranged in sequence along the width direction of the battery 300 to form a group of energy absorption groups, and another first energy absorption structure 21 and the energy absorption group are arranged along the length direction of the battery 300, and are connected to the three first energy absorption structures 21 arranged along the width direction of the battery 300 through the first connecting beam 30.

[0187] like Fig. 20 and Fig.21 As shown, as another example, multiple first energy absorbing structures 21 form multiple energy absorbing groups, each energy absorbing group includes multiple first energy absorbing structures 21, multiple first energy absorbing structures 21 in each group are arranged along the width direction of the battery 300, and multiple energy absorbing groups are arranged in sequence along the length direction of the battery 300. Two adjacent energy absorbing groups can be connected by the first connecting beam 30. Fig. 20As shown, the energy absorbing structure 20 includes five first energy absorbing structures 21 . The five first energy absorbing structures 21 form two energy absorbing groups. One energy absorbing group includes three first energy absorbing structures 21 , and the other energy absorbing group includes two first energy absorbing structures 21 . Fig.21 As shown, the energy absorbing structure 20 includes four first energy absorbing structures 21 . The four first energy absorbing structures 21 form two energy absorbing groups, and each energy absorbing group includes two first energy absorbing structures 21 .

[0188] In the above technical solution, the energy absorbing structure 20 includes a plurality of first energy absorbing structures 21 arranged along the width direction of the battery 300, so that the energy absorption performance of the energy absorbing structure 20 can be improved, and the plurality of first energy absorbing structures 21 arranged along the width direction of the battery 300 can be connected to the energy bin 11, which is beneficial to increase the connection area between the energy absorbing structure 20 and the energy bin 11. When the energy absorbing structure 20 is subjected to a collision force, it is more beneficial to improve the force transmission performance between the energy absorbing structure 20 and the energy bin 11. The energy bin 11 can more reliably support the energy absorbing structure 20, which is more beneficial to improve the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improve the stability of the energy absorbing structure 20 when subjected to an external force collision.

[0189] According to some embodiments of the present application, a plurality of first energy absorbing structures 21 are arranged at intervals along the width direction of the battery 300; or, at least two first energy absorbing structures 21 are arranged crosswise; or at least two adjacent first energy absorbing structures 21 along the width direction of the battery 300 are connected.

[0190] As an example, multiple first energy absorption structures 21 are arranged at intervals along the width direction of the battery 300, wherein when multiple first energy absorption structures 21 are arranged along the width direction of the battery 300, two adjacent first energy absorption structures 21 arranged along the width direction of the battery 300 are arranged at intervals.

[0191] By arranging multiple first energy absorbing structures 21 at intervals along the width direction of the battery 300, the risk of mutual interference between two adjacent first energy absorbing structures 21 arranged along the width direction of the battery 300 can be reduced. When the multiple first energy absorbing structures 21 arranged at intervals along the width direction of the battery 300 are connected to the energy bin 11, the multiple first energy absorbing structures 21 transmit force to different positions of the energy bin 11, so that the force is dispersed and transmitted to the energy bin 11, thereby reducing the risk of stress concentration in the energy bin 11, and further reducing the risk of deformation of the energy bin 11 and squeezing the battery cells 12 in the battery 300. In addition, the energy bin 11 can more reliably support the energy absorbing structure 20, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improving the stability of the energy absorbing structure 20 when subjected to external force collision.

[0192] As another example, at least two first energy absorbing structures 21 are cross-arranged. Among the multiple first energy absorbing structures 21, at least two first energy absorbing structures 21 are cross-arranged. By cross-arranging at least two first energy absorbing structures 21, the structural strength of the energy absorbing structure 20 can be improved, and the energy absorbing structure 20 can be reliably connected to the energy bin 11, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improving the stability of the energy absorbing structure 20 when it is hit by external force.

[0193] As another example, at least two first energy absorption structures 21 adjacent to each other along the width direction of the battery 300 are connected. Among them, when a plurality of first energy absorption structures 21 are arranged along the width direction of the battery 300, at least two adjacent first energy absorption structures 21 among the plurality of first energy absorption structures 21 arranged along the width direction of the battery 300 are connected, and the two adjacent first energy absorption structures 21 can be directly connected, or the two adjacent first energy absorption structures 21 can be indirectly connected through an adapter. By connecting at least two first energy absorption structures 21 adjacent to each other along the width direction of the battery 300, the structural strength of the energy absorption structure 20 can be improved, and the energy absorption structure 20 can be reliably connected to the energy bin 11, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorption structure 20, and further improving the stability of the energy absorption structure 20 when it is hit by external force.

[0194] According to some embodiments of the present application, Figure 2-Figure 13 As shown, the energy absorbing structure 20 further includes a second energy absorbing structure 22 . Along the length direction of the battery 300 , the second energy absorbing structure 22 is located between the first energy absorbing structure 21 and the energy bin 11 .

[0195] Among them, the energy absorption structure 20 may also include a second energy absorption structure 22, and the second energy absorption structure 22 may include an energy absorption box 211, an energy absorption space, a buffer frame 212, etc. The second energy absorption structure 22 may be arranged inside the box body 10, or the second energy absorption structure 22 may be arranged outside the box body 10. As an example, the first energy absorption structure 21 is arranged outside the box body 10, and the second energy absorption structure 22 may be arranged inside the box body 10. As another example, both the first energy absorption structure 21 and the second energy absorption structure 22 are arranged inside the box body 10. As another example, both the first energy absorption structure 21 and the second energy absorption structure 22 are arranged outside the box body 10. Along the length direction of the battery 300, the second energy absorption structure 22 is located between the first energy absorption structure 21 and the energy bin 11, the second energy absorption structure 22 may be connected to the energy bin 11, the second energy absorption structure 22 may be directly connected to the first energy absorption structure 21, or the second energy absorption structure 22 may be indirectly connected to the first energy absorption structure 21 through an adapter. The second energy absorbing structure 22 may be located between the first side beam 112 of the energy bin 11 and the first energy absorbing structure 21 .

[0196] In the above technical solution, by the second energy absorbing structure 22 being located between the first energy absorbing structure 21 and the energy bin 11, the energy absorbing structure 20 can have a multi-stage energy absorbing effect. After the energy absorbing structure 20 is impacted, the first energy absorbing structure 21 can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the second energy absorbing structure 22. The second energy absorbing structure 22 further absorbs the collision force, which can further reduce the force on the battery cells 12 in the battery 300, further reduce the deformation and damage risks of the battery cells 12 in the battery 300, further improve the reliability of the battery 300, and thus further improve the reliability of the vehicle 200.

[0197] According to some embodiments of the present application, Figure 2-Figure 13 As shown, the second energy absorbing structure 22 is connected to the first energy absorbing structure 21 , and the second energy absorbing structure 22 is connected to the energy bin 11 .

[0198] The second energy absorbing structure 22 may be connected between the first energy absorbing structure 21 and the energy bin 11, and along the length direction of the battery 300, the second energy absorbing structure 22 may be located between the first energy absorbing structure 21 and the energy bin 11. The second energy absorbing structure 22 may be connected to at least one side beam 111 of the energy bin 11, and further, the second energy absorbing structure 22 may be connected between the first energy absorbing structure 21 and the first side beam 112 of the energy bin 11. When the second energy absorbing structure 22 is an energy absorbing box 211, the second energy absorbing structure 22 may be connected to the first side beam 112 of the energy bin 11, and the second energy absorbing structure 22 may be connected to the first side beam 112 by welding, bolting, etc. When the second energy absorbing structure 22 is a buffer frame 212, the second energy absorbing structure 22 may be connected to the first side beam 112 of the energy bin 11, the second energy absorbing structure 22 may also be connected to the second side beam 113 of the energy bin 11, and the second energy absorbing structure 22 may also be connected to the first side beam 112 and the second side beam 113 of the energy bin 11.

[0199] In the above technical solution, the second energy absorbing structure 22 is connected to the first energy absorbing structure 21 and the energy bin 11. After the energy absorbing structure 20 is hit, the first energy absorbing structure 21 can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the second energy absorbing structure 22. The second energy absorbing structure 22 further absorbs the collision force. The collision force not absorbed by the energy absorbing structure 20 is transmitted to the energy bin 11. The collision force can be transmitted along the energy bin 11 to the box body 10 and other structural parts of the vehicle 200, so that the collision force is dispersed and the risk of concentrated force is reduced. The force on the battery cell 12 can be further reduced, and the risk of deformation and damage of the battery cell 12 can be further reduced, thereby further improving the reliability of the battery 300 and further improving the reliability of the vehicle 200.

[0200] According to some embodiments of the present application, Figure 2 As shown, the energy bin 11 includes a plurality of side beams 111 , and the plurality of side beams 111 are connected to enclose the energy bin 11 , and the second energy absorbing structure 22 is fixedly connected to the side beams 111 .

[0201] Among them, the energy bin 11 may include a plurality of side beams 111, for example: the energy bin 11 may include two, three, four, five, six, etc. number of side beams 111, and the plurality of side beams 111 are sequentially connected and enclosed to form the energy bin 11, and an installation space for installing the battery cell 12 is formed between the plurality of side beams 111. The present application is described by taking the energy bin 11 including four side beams 111 as an example. The second energy absorption structure 22 is fixedly connected to at least one side beam 111, the first energy absorption structure 21 may be welded to the side beam 111, and the first energy absorption structure 21 may also be installed to the corresponding side beam 111 by bolts. When the second energy absorption structure 22 is an energy absorption box 211, the second energy absorption structure 22 may be connected to the first side beam 112 of the energy bin 11, and the second energy absorption structure 22 may be connected to the first side beam 112 of the energy bin 11 by welding, bolting, etc. When the second energy absorption structure 22 is a buffer frame 212, the second energy absorption structure 22 can be connected to the first side beam 112 of the energy bin 11, the second energy absorption structure 22 can also be connected to the second side beam 113 of the energy bin 11, and the second energy absorption structure 22 can also be connected to the first side beam 112 and the second side beam 113 of the energy bin 11.

[0202] In the above technical solution, the second energy absorbing structure 22 is connected to the side beam 111 of the energy bin 11. After the energy absorbing structure 20 is hit, the first energy absorbing structure 21 can absorb at least part of the collision force, and the collision force not absorbed by the first energy absorbing structure 21 can be transmitted to the second energy absorbing structure 22. The second energy absorbing structure 22 further absorbs the collision force. The collision force not absorbed by the second energy absorbing structure 22 is transmitted to the energy bin 11. The collision force can be transmitted along the energy bin 11 to the box body 10 and other structural parts of the vehicle 200, so that the collision force is dispersed and the risk of concentrated force is reduced. The force on the battery cell 12 can be further reduced, and the risk of deformation and damage of the battery cell 12 can be further reduced, thereby further improving the reliability of the battery 300 and further improving the reliability of the vehicle 200.

[0203] According to some embodiments of the present application, Figure 2 As shown, the battery 300 further includes a conductive cross beam 40 located between the first energy absorbing structure 21 and the second energy absorbing structure 22 , and the conductive cross beam 40 connects the first energy absorbing structure 21 and the second energy absorbing structure 22 .

[0204] Among them, the conductive beam 40 extends along the width direction of the battery 300, the conductive beam 40 can be located between the first energy absorption structure 21 and the second energy absorption structure 22, the conductive beam 40 is connected to the first energy absorption structure 21 and the second energy absorption structure 22, the first energy absorption structure 21 can be fixedly connected to the conductive beam 40 by welding, bolting, etc., and the second energy absorption structure 22 can be fixedly connected to the conductive beam 40 by welding, bolting, etc.

[0205] In the above technical solution, the first energy absorbing structure 21 and the second energy absorbing structure 22 are connected by the conductive cross beam 40. After the first energy absorbing structure 21 is hit by a force, the collision force can be transmitted to the second energy absorbing structure 22 through the conductive cross beam 40, thereby realizing the force transmission effect from the first energy absorbing structure 21 to the second energy absorbing structure 22, so that the energy absorbing structure 20 has a multi-stage energy absorption effect.

[0206] According to some embodiments of the present application, Figure 3 As shown, when the energy absorbing structure 20 is arranged in front of the energy bin 11, a connection portion 213 may be provided at the rear end of the first energy absorbing structure 21, and the first energy absorbing structure 21 is fixedly connected to the conductive beam 40 through the connection portion 213. The connection portion 213 and the first energy absorbing structure 21 may be fixed by welding or bolting, and the connection portion 213 and the conductive beam 40 may be fixed by welding or bolting. The connection portion 213 is a plate-like structure, and the connection portion 213 includes an upper connection plate, a middle connection plate and a lower connection plate. The middle connection plate is connected between the upper connection plate and the lower connection plate, the upper connection plate overlaps the upper surface of the conductive beam 40, the middle connection plate overlaps the front side of the conductive beam 40, and the lower connection plate overlaps the lower surface of the conductive beam 40. By providing the connection portion 213, the contact area between the first energy absorbing structure 21 and the conductive beam 40 can be increased, and the force-bearing area of ​​the first energy absorbing structure 21 can be increased.

[0207] According to some embodiments of the present application, Figure 2 As shown, the conductive beam 40 extends along the width direction of the battery 300 ; the conductive beam 40 is connected to the box body 10 , or the conductive beam 40 forms a part of the box body 10 .

[0208] The conductive cross beam 40 extends along the width direction of the battery 300, and the conductive cross beam 40 is connected to the box body 10. The conductive cross beam 40 can be connected to the outer frame of the box body 10. When the two second side beams 113 are the outer frame of the box body 10, the conductive cross beam 40 can be connected between the two second side beams 113. Alternatively, the conductive cross beam 40 forms a part of the box body 10, which can also be understood as the conductive cross beam 40 can be a part of the box body 10, that is, a part of the outer frame of the box body 10.

[0209] In the above technical solution, the conductive cross beam 40 is connected to the box 10, which can further improve the connection reliability between the energy absorbing structure 20 and the energy bin 11, reduce the risk of vibration of the energy absorbing structure 20, and the conductive cross beam 40 can support the energy absorbing structure 20, further improving the stability of the energy absorbing structure 20 when it is hit by an external force. By forming a part of the box 10 with the conductive cross beam 40, the structure of the box 10 can be simplified, which is conducive to the lightweight design of the box 10.

[0210] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, along the length direction of the battery 300 , the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 have an overlapping area.

[0211] Among them, the second energy absorption structure 22 is connected between the first energy absorption structure 21 and the corresponding side beam 111 of the energy bin 11, and along the length direction of the battery 300, the orthographic projection of the first energy absorption structure 21 and the orthographic projection of the second energy absorption structure 22 have an overlapping area, the orthographic projections of the first energy absorption structure 21 and the second energy absorption structure 22 connected to the front first side beam 112 along the length direction of the battery 300 have an overlapping area, and the orthographic projections of the first energy absorption structure 21 and the second energy absorption structure 22 connected to the rear first side beam 112 along the length direction of the battery 300 have an overlapping area.

[0212] In the above technical solution, along the length direction of the battery 300, there is an overlapping area between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the corresponding second energy absorbing structure 22. When the first energy absorbing structure 21 is subjected to a collision force, it is beneficial to improve the force transmission performance between the first energy absorbing structure 21 and the second energy absorbing structure 22. The second energy absorbing structure 22 can reliably support the first energy absorbing structure 21, which is beneficial to improve the supporting effect of the second energy absorbing structure 22 on the first energy absorbing structure 21, and improve the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0213] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, the area of ​​the orthographic projection of the first energy absorbing structure 21 is S1, and the area of ​​the overlapping region of the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 is S3, which satisfies: 20%≤S3 / S1≤100%.

[0214] Among them, along the length direction of the battery 300, the area of ​​the orthographic projection of the first energy absorbing structure 21 is S1, and the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 is S3. The unit of the area of ​​the orthographic projection of the first energy absorbing structure 21 can be reasonably selected and designed according to actual conditions, and the unit of the area of ​​the overlapping area of ​​the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 can be reasonably selected and designed according to actual conditions. S3 / S1 can be 20%, 25%, 30%, 45%, 50%, 52%, 55%, 60%, 65%, 67%, 70%, 74%, 80%, 85%, 90%, 96%, 100% and other values. When S3 / S1 is less than 20%, the area of ​​the overlapped region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 is small. When the first energy absorbing structure 21 is subjected to a collision force, the force transmission performance between the first energy absorbing structure 21 and the second energy absorbing structure 22 is poor, the supporting effect of the second energy absorbing structure 22 on the first energy absorbing structure 21 is poor, and the stability of the first energy absorbing structure 21 when subjected to an external force collision is poor. Therefore, by setting S3 / S1≥20%, the area of ​​the overlapped region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 is appropriate. When the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the second energy absorbing structure 22. The second energy absorbing structure 22 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the second energy absorbing structure 22 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0215] In the above technical solution, by 20%≤S3 / S1≤100%, the area of ​​the overlapping region between the orthographic projection of the first energy absorbing structure 21 and the orthographic projection of the second energy absorbing structure 22 is appropriate. When the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the second energy absorbing structure 22. The second energy absorbing structure 22 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the second energy absorbing structure 22 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0216] According to some embodiments of the present application, the orthographic projection of the first energy absorbing structure 21 is completely located within the orthographic projection of the second energy absorbing structure 22 .

[0217] Among them, along the length direction of the battery 300, the orthographic projection of the first energy absorption structure 21 and the orthographic projection of the connected second energy absorption structure 22 have an overlapping area, and the orthographic projection of the first energy absorption structure 21 is completely located within the orthographic projection range of the corresponding second energy absorption structure 22, so that the first energy absorption structure 21 and the connected second energy absorption structure 22 are arranged opposite to each other along the length direction of the battery 300.

[0218] In the above technical solution, along the length direction of the battery 300, the orthographic projection of the first energy absorbing structure 21 is completely located within the orthographic projection of the second energy absorbing structure 22. When the first energy absorbing structure 21 is subjected to a collision force, it is more conducive to improving the force transmission performance between the first energy absorbing structure 21 and the second energy absorbing structure 22. The second energy absorbing structure 22 can more reliably support the first energy absorbing structure 21, which is more conducive to improving the supporting effect of the second energy absorbing structure 22 on the first energy absorbing structure 21, and further improving the stability of the first energy absorbing structure 21 when subjected to an external force collision.

[0219] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, along the length direction of the battery 300 , the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 have an overlapping area.

[0220] Among them, along the length direction of the battery 300, the orthographic projection of the second energy absorption structure 22 and the orthographic projection of the corresponding first side beam 112 have an overlapping area, the orthographic projection of the second energy absorption structure 22 connected to the front first side beam 112 along the length direction of the battery 300 has an overlapping area with the orthographic projection of the front first side beam 112, and the orthographic projection of the second energy absorption structure 22 connected to the rear first side beam 112 along the length direction of the battery 300 has an overlapping area with the orthographic projection of the rear first side beam 112.

[0221] In the above technical solution, the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the corresponding first side beam 112 have an overlapping area along the length direction of the battery 300. When the second energy absorbing structure 22 is subjected to a collision force, it is beneficial to improve the force transmission performance between the second energy absorbing structure 22 and the first side beam 112. The first side beam 112 can reliably support the second energy absorbing structure 22, which is beneficial to improve the supporting effect of the first side beam 112 on the second energy absorbing structure 22, and improve the stability of the second energy absorbing structure 22 when subjected to an external force collision.

[0222] According to some embodiments of the present application, along the length direction of the battery 300, the area of ​​the orthographic projection of the second energy absorbing structure 22 is S4, and the area of ​​the overlapping area of ​​the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 is S5, satisfying: 10%≤S5 / S4≤100%.

[0223] Among them, along the length direction of the battery 300, the area of ​​the orthographic projection of the second energy absorbing structure 22 is S4, and the area of ​​the overlapping area of ​​the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 is S5. The unit of the area of ​​the orthographic projection of the second energy absorbing structure 22 can be reasonably selected and designed according to actual conditions, and the unit of the area of ​​the overlapping area of ​​the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 can be reasonably selected and designed according to actual conditions. S5 / S4 can be 10%, 11%, 15%, 20%, 25%, 30%, 40%, 43%, 45%, 50%, 55%, 60%, 61%, 70%, 80%, 90%, 93%, 95%, 100% and other values. When S5 / S4 is less than 10%, the area of ​​the overlapped region between the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 is small, and when the second energy absorbing structure 22 is subjected to a collision force, the force transmission performance between the second energy absorbing structure 22 and the first side beam 112 is poor, and the supporting effect of the first side beam 112 on the second energy absorbing structure 22 is poor, and the stability of the second energy absorbing structure 22 when subjected to an external force collision is poor. Therefore, by 10%≤S5 / S4≤100%, the area of ​​the overlapped region between the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 is appropriate, and when the second energy absorbing structure 22 is subjected to a collision force, it is more conducive to improving the force transmission performance between the second energy absorbing structure 22 and the first side beam 112, and the first side beam 112 can more reliably support the second energy absorbing structure 22, which is more conducive to improving the supporting effect of the first side beam 112 on the second energy absorbing structure 22, and further improving the stability of the second energy absorbing structure 22 when subjected to an external force collision.

[0224] In the above technical solution, by 10%≤S5 / S4≤100%, the area of ​​the overlapping region between the orthographic projection of the second energy absorbing structure 22 and the orthographic projection of the first side beam 112 is appropriate, and when the second energy absorbing structure 22 is subjected to a collision force, it is more conducive to improving the force transmission performance between the second energy absorbing structure 22 and the first side beam 112, and the first side beam 112 can more reliably support the second energy absorbing structure 22, which is more conducive to improving the supporting effect of the first side beam 112 on the second energy absorbing structure 22, and further improving the stability of the second energy absorbing structure 22 when subjected to an external force collision.

[0225] According to some embodiments of the present application, the orthographic projection of the second energy absorbing structure 22 is completely located within the orthographic projection of the first side beam 112 .

[0226] Among them, along the length direction of the battery 300, the orthographic projection of the second energy absorbing structure 22 is completely located in the orthographic projection of the first side beam 112 connected thereto, the orthographic projection of the second energy absorbing structure 22 connected to the front first side beam 112 along the length direction of the battery 300 is completely located in the orthographic projection of the front first side beam 112, and the orthographic projection of the second energy absorbing structure 22 connected to the rear first side beam 112 along the length direction of the battery 300 is completely located in the orthographic projection of the rear first side beam 112. Along the length direction of the battery 300, the orthographic projection of the second energy absorbing structure 22 is completely located in the orthographic projection of the corresponding first side beam 112, so that the second energy absorbing structure 22 and the corresponding first side beam 112 are arranged opposite to each other along the length direction of the battery 300.

[0227] In the above technical solution, by making the orthographic projection of the second energy absorbing structure 22 completely located within the orthographic projection of the corresponding first side beam 112 along the length direction of the battery 300, when the second energy absorbing structure 22 is subjected to a collision force, it is more conducive to improving the force transmission performance between the second energy absorbing structure 22 and the corresponding first side beam 112, and the first side beam 112 can more reliably support the second energy absorbing structure 22, which is more conducive to improving the supporting effect of the first side beam 112 on the second energy absorbing structure 22, and further improving the stability of the second energy absorbing structure 22 when subjected to an external force collision.

[0228] According to some embodiments of the present application, Figure 11-13 As shown, the energy absorbing structure 20 may include only one second energy absorbing structure 22 .

[0229] According to some embodiments of the present application, the cross-section of the second energy absorbing structure 22 perpendicular to the height direction of the battery 300 may be in the shape of a triangle, a rectangle (eg Fig.11 As shown), trapezoidal (as Fig.12 and Fig.13 as shown) or other polygons.

[0230] According to some embodiments of the present application, the first energy absorbing structure 21 and the second energy absorbing structure 22 may be the same or different, and the present application does not limit this.

[0231] According to some embodiments of the present application, Fig.14 As shown, the energy absorbing structure 20 includes a plurality of second energy absorbing structures 22 arranged along the length direction of the battery 300 , and the second energy absorbing structures 22 adjacent to each other along the length direction of the battery 300 are connected.

[0232] Among them, multiple second energy absorption structures 22 are arranged along the length direction of the battery 300. Along the length direction of the battery 300, adjacent second energy absorption structures 22 are connected. Adjacent second energy absorption structures 22 can be directly connected. Adjacent second energy absorption structures 22 can be connected by welding or bolting. However, the present application is not limited to this. Adjacent second energy absorption structures 22 can also be indirectly connected by beams. The second energy absorption structures 22 are connected to the beams by welding or bolting.

[0233] In the above technical solution, multiple second energy absorbing structures 22 are arranged along the length direction of the battery 300, and the second energy absorbing structures 22 adjacent to each other along the length direction of the battery 300 are connected. When the energy absorbing structure 20 is hit, the multiple second energy absorbing structures 22 can absorb the collision force to achieve more levels of energy absorption effect, further improve the energy absorption performance of the energy absorbing structure 20, and reduce the collision force transmitted to the energy bin 11. The force on the battery cell 12 can be further reduced, and the risk of deformation and squeezing of the battery cell 12 by the energy bin 11 can be further reduced. The risk of deformation and damage of the battery cell 12 can be further reduced, and the reliability of the battery 300 can be further improved, thereby further improving the reliability of the vehicle 200.

[0234] According to some embodiments of the present application, Fig.14 As shown, the energy absorbing structure 20 further includes a second connecting beam 221 , and the adjacent second energy absorbing structures 22 along the length direction of the battery 300 are connected by the second connecting beam 221 .

[0235] Among them, the energy absorption structure 20 can also include a second connecting beam 221. Along the length direction of the battery 300, adjacent second energy absorption structures 22 are connected by the second connecting beam 221. The second connecting beam 221 is connected between adjacent second energy absorption structures 22. The second energy absorption structure 22 and the second connecting beam 221 are connected by welding or bolting.

[0236] In the above technical solution, by setting a second connecting beam 221 connected between the adjacent second energy absorbing structures 22 along the length direction of the battery 300, the connection strength of the adjacent second energy absorbing structures 22 can be improved, the structural strength of the energy absorbing structure 20 can be further improved, the stability of the energy absorbing structure 20 when it is hit by external force can be further improved, the energy absorption performance of the energy absorbing structure 20 can be further improved, and when the energy absorbing structure 20 is hit, the collision force transmitted to the energy bin 11 can be further reduced.

[0237] According to some embodiments of the present application, Fig.14 As shown, along the direction away from the energy bin 11 , the size of each second energy absorbing structure 22 along the width direction of the battery 300 decreases successively.

[0238] Among them, the direction away from the energy bin 11 is parallel to the driving direction of the vehicle 200; when multiple second energy absorbing structures 22 are arranged at the front side of the energy bin 11, the vehicle 200 moves forward in the direction away from the energy bin 11, and the size of each second energy absorbing structure 22 along the width direction of the battery 300 decreases in sequence along the driving direction of the vehicle 200, that is, from the rear to the front direction of the vehicle 200. When multiple second energy absorbing structures 22 are arranged at the rear side of the energy bin 11, the vehicle 200 moves backward, and the size of each second energy absorbing structure 22 along the width direction of the battery 300 decreases in sequence along the driving direction of the vehicle 200, that is, from the front to the rear direction of the vehicle 200.

[0239] In the above technical solution, by arranging the second energy absorbing structures 22 so that the dimensions along the width direction of the battery 300 are successively reduced in the direction away from the energy bin 11, the second energy absorbing structure 22 having the largest dimension along the width direction of the battery 300 can be connected to the energy bin 11, which is beneficial to increase the connection area between the second energy absorbing structure 22 and the energy bin 11. When the second energy absorbing structure 22 is subjected to a collision force, it is more beneficial to improve the force transmission performance between the second energy absorbing structure 22 and the energy bin 11. The energy bin 11 can more reliably support the second energy absorbing structure 22, which is more beneficial to improve the supporting effect of the energy bin 11 on the second energy absorbing structure 22, and further improve the stability of the second energy absorbing structure 22 when subjected to an external force collision.

[0240] According to some embodiments of the present application, Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the energy absorbing structure 20 includes a plurality of second energy absorbing structures 22 arranged along the width direction of the battery 300 .

[0241] Among them, Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the energy absorbing structure 20 includes a plurality of second energy absorbing structures 22, and the plurality of second energy absorbing structures 22 can be arranged in sequence along the width direction of the battery 300. Fig.15 As shown, part of the plurality of second energy absorbing structures 22 is arranged in sequence along the width direction of the battery 300, and another part of the plurality of second energy absorbing structures 22 is arranged along the length direction of the battery 300. Fig.16 As shown, or multiple second energy absorbing structures 22 form multiple energy absorbing groups, each energy absorbing group includes multiple second energy absorbing structures 22, multiple second energy absorbing structures 22 in each group are arranged along the width direction of the battery 300, multiple energy absorbing groups are arranged in sequence along the length direction of the battery 300, and two adjacent energy absorbing groups can be connected by a second connecting beam 221. Figure 17-Figure 21As shown, as an example, the energy absorbing structure 20 includes a plurality of second energy absorbing structures 22 , and the plurality of second energy absorbing structures 22 are sequentially arranged along the width direction of the battery 300 .

[0242] In the above technical solution, the energy absorbing structure 20 includes a plurality of second energy absorbing structures 22 arranged along the width direction of the battery 300, so that the energy absorption performance of the energy absorbing structure 20 can be improved, and the plurality of second energy absorbing structures 22 arranged along the width direction of the battery 300 can be connected to the first side beam 112, which is beneficial to increase the connection area between the energy absorbing structure 20 and the energy bin 11. When the energy absorbing structure 20 is subjected to a collision force, it is more beneficial to improve the force transmission performance between the energy absorbing structure 20 and the energy bin 11. The energy bin 11 can more reliably support the energy absorbing structure 20, which is more beneficial to improve the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improve the stability of the energy absorbing structure 20 when subjected to an external force collision.

[0243] According to some embodiments of the present application, a plurality of second energy absorbing structures 22 are arranged at intervals along the width direction of the battery 300; or, at least two second energy absorbing structures 22 are arranged crosswise; or at least two second energy absorbing structures 22 adjacent to each other along the width direction of the battery 300 are connected.

[0244] As an example, Figure 4 As shown, a plurality of second energy absorbing structures 22 are arranged at intervals along the width direction of the battery 300 , wherein when the plurality of second energy absorbing structures 22 are arranged along the width direction of the battery 300 , two adjacent second energy absorbing structures 22 arranged along the width direction of the battery 300 are arranged at intervals.

[0245] By arranging multiple second energy absorbing structures 22 at intervals along the width direction of the battery 300, the risk of mutual interference between two adjacent second energy absorbing structures 22 arranged along the width direction of the battery 300 can be reduced. When the multiple second energy absorbing structures 22 arranged at intervals along the width direction of the battery 300 are connected to the energy bin 11, the multiple second energy absorbing structures 22 transmit force to different positions of the first side beam 112 of the energy bin 11, so that the force is dispersed and transmitted to the energy bin 11, thereby reducing the risk of stress concentration in the energy bin 11, and further reducing the risk of deformation of the energy bin 11 and extrusion of the battery cell 12. In addition, the energy bin 11 can more reliably support the energy absorbing structure 20, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improving the stability of the energy absorbing structure 20 when subjected to external force collision.

[0246] As another example, Fig.10As shown, at least two second energy absorbing structures 22 are cross-arranged. Among the plurality of second energy absorbing structures 22, at least two second energy absorbing structures 22 are cross-arranged. By cross-arranging at least two second energy absorbing structures 22, the structural strength of the energy absorbing structure 20 can be improved, and the energy absorbing structure 20 can be reliably connected between the conductive cross beam 40 and the energy bin 11, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improving the stability of the energy absorbing structure 20 when it is hit by external force.

[0247] As another example, at least two second energy absorbing structures 22 adjacent to each other along the width direction of the battery 300 are connected. Among them, when a plurality of second energy absorbing structures 22 are arranged along the width direction of the battery 300, at least two adjacent second energy absorbing structures 22 among the plurality of second energy absorbing structures 22 arranged along the width direction of the battery 300 are connected, and the two adjacent second energy absorbing structures 22 can be directly connected, or the two adjacent second energy absorbing structures 22 can be indirectly connected through an adapter. By connecting at least two second energy absorbing structures 22 adjacent to each other along the width direction of the battery 300, the structural strength of the energy absorbing structure 20 can be improved, and the energy absorbing structure 20 can be reliably connected between the conductive beam 40 and the energy bin 11, which is more conducive to improving the supporting effect of the energy bin 11 on the energy absorbing structure 20, and further improving the stability of the energy absorbing structure 20 when it is hit by an external force.

[0248] According to some embodiments of the present application, Fig.11 As shown, a second energy absorbing structure 22 is connected between the conductive cross beam 40 and the front first side beam 112 , and the second energy absorbing structure 22 is a rectangular structure.

[0249] According to some embodiments of the present application, Fig.12 and Fig.13 As shown, a second energy absorbing structure 22 is connected between the conductive cross beam 40 and the front first side beam 112 , and the second energy absorbing structure 22 is a trapezoidal structure.

[0250] According to some embodiments of the present application, the first energy absorbing structure 21 includes an energy absorbing box 211, a buffer frame 212, a spring and at least one of an airbag; and / or the second energy absorbing structure 22 includes an energy absorbing box 211, a buffer frame 212, a spring and at least one of an airbag.

[0251] As an example, the first energy absorbing structure 21 includes at least one of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, that is, the first energy absorbing structure 21 may include any one of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the first energy absorbing structure 21 may also include any two of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the first energy absorbing structure 21 may also include any three of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the first energy absorbing structure 21 may also include the energy absorbing box 211, the buffer frame 212, the spring and the airbag.

[0252] Alternatively, as another example, the second energy absorbing structure 22 includes at least one of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, that is, the second energy absorbing structure 22 may include any one of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the second energy absorbing structure 22 may also include any two of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the second energy absorbing structure 22 may also include any three of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, the second energy absorbing structure 22 may also include the energy absorbing box 211, the buffer frame 212, the spring and the airbag.

[0253] Alternatively, as another example, the first energy absorbing structure 21 includes at least one of an energy absorbing box 211 , a buffer frame 212 , a spring, and an airbag, and the second energy absorbing structure 22 includes at least one of an energy absorbing box 211 , a buffer frame 212 , a spring, and an airbag.

[0254] The first energy absorbing structure 21 and the second energy absorbing structure 22 may be disposed outside the box 10. Alternatively, the first energy absorbing structure 21 and the second energy absorbing structure 22 may be disposed inside the box 10. Alternatively, the first energy absorbing structure 21 is disposed outside the box 10, and the second energy absorbing structure 22 is disposed inside the box 10.

[0255] In the above technical solution, by at least one of the first energy absorbing structure 21 and the second energy absorbing structure 22 including at least one of the energy absorbing box 211, the buffer frame 212, the spring and the airbag, at least one of the first energy absorbing structure 21 and the second energy absorbing structure 22 can have energy absorbing performance, so that the energy absorbing structure 20 meets the working requirements and can improve the energy absorption effect of the energy absorbing structure 20.

[0256] According to some embodiments of the present application, the energy absorption box 211 has a hollow cavity 2111 that penetrates the energy absorption box 211 along the length direction of the battery 300 .

[0257] The energy absorbing box 211 has a hollow cavity 2111, which penetrates the energy absorbing box 211 along the length direction of the battery 300. There may be multiple hollow cavities 2111, which may be parallel to each other. The cross-sectional shape of the hollow cavity 2111 may be square, rectangular, circular, diamond, polygonal, etc. The energy absorbing box 211 may be made of a high-ductility aluminum alloy.

[0258] like Fig. 22 As shown, the cross-sectional shape of the hollow cavity 2111 is a square. Fig.23 As shown, the cross-sectional shape of the hollow cavity 2111 is a rectangle. Fig.24 As shown, the cross-sectional shape of the hollow cavity 2111 is circular. Fig.25 As shown, the cross-sectional shape of the hollow cavity 2111 is a regular hexagon. Fig.26 As shown, at least part of the hollow cavity 2111 has a rhombus-shaped cross-section.

[0259] In the above technical solution, the energy absorption box 211 has a hollow cavity 2111 that penetrates the energy absorption box 211 along the length direction of the battery 300, so that the energy absorption box 211 can have energy absorption performance, which is beneficial to improving the energy absorption capacity of the energy absorption box 211, and can simplify the structure of the energy absorption box 211, which is convenient for the production of the energy absorption box 211.

[0260] According to some embodiments of the present application, the buffer frame 212 encloses a buffer cavity 2121 .

[0261] The buffer cavity 2121 is formed by the buffer frame 212. In other words, the buffer frame 212 defines the buffer cavity 2121. As an example, the buffer cavity 2121 may be located inside the buffer frame 212. As another example, the buffer cavity 2121 is formed with at least one open end.

[0262] The buffer frame 212 may be a separately provided frame structure. The buffer frame 212 may also have at least a portion of its structure formed by the box body 10, for example: Figure 4 and Figure 5 As shown, the buffer frame 212 is composed of a first side beam 112, two second side beams 113 and a conductive cross beam 40. The conductive cross beam 40 can be the outer frame of the box body 10. The first side beam 112 and the conductive cross beam 40 are arranged opposite to and spaced apart along the length direction of the battery 300. The first side beam 112 and the conductive cross beam 40 are both connected between the two second side beams 113, so that the first side beam 112, part of the second side beam 113 and the conductive cross beam 40 enclose a buffer cavity 2121.

[0263] In the above technical solution, the buffer cavity 2121 is formed by enclosing the buffer frame 212, so that the buffer frame 212 can have energy absorption performance, which is beneficial to improving the energy absorption capacity of the buffer frame 212, and can simplify the structure of the buffer frame 212, making it easier to produce the buffer frame 212.

[0264] According to some embodiments of the present application, Figure 5 As shown, part of the structure of the buffer frame 212 is an arc structure, for example, the conductive beam 40 forms an arc structure, or the outer frame of the box body 10 forms an arc structure. This application takes the conductive beam 40 forming an arc structure as an example for explanation. The conductive beam 40 forms an arc structure, which is conducive to increasing the space of the buffer cavity 2121, improving the energy absorption performance of the buffer frame 212, and thus improving the energy absorption effect of the energy absorption structure 20.

[0265] According to some embodiments of the present application, Figure 4 As shown, at least one of the energy absorption box 211 , a spring and an airbag is disposed in the buffer cavity 2121 .

[0266] Among them, the buffer cavity 2121 may be provided with any one of the energy absorption box 211, the spring and the airbag, or any two of the energy absorption box 211, the spring and the airbag, or the energy absorption box 211, the spring and the airbag, etc. located in the buffer cavity 2121 may be connected to the buffer frame 212, and the energy absorption box 211, the spring, the airbag, etc. located in the buffer cavity 2121 may be constructed as at least part of the second energy absorption structure 22. The present application takes the energy absorption box 211 provided in the buffer cavity 2121 as an example for explanation, the energy absorption box 211 is assembled in the buffer cavity 2121, and both ends of the energy absorption box 211 along the length direction of the battery 300 are connected to the buffer frame 212. As an example, both ends of the energy absorption box 211 along the length direction of the battery 300 are connected to the conductive beam 40 and the first side beam 112, respectively. The energy absorbing box 211 may be connected to the conductive cross beam 40 and the first side beam 112 by welding, or the energy absorbing box 211 may be connected to the conductive cross beam 40 and the first side beam 112 by bolts.

[0267] In the above technical solution, by arranging at least one of the energy absorption box 211, the spring and the airbag in the buffer cavity 2121, the energy absorption performance of the energy absorption structure 20 can be improved. After the energy absorption structure 20 is hit, the energy absorption structure 20 can absorb more collision force, which can further reduce the force on the battery cell 12, further reduce the risk of deformation and compression of the energy bin 11 and the risk of deformation and damage of the battery cell 12, further improve the reliability of the battery 300, and thus further improve the reliability of the vehicle 200.

[0268] According to some embodiments of the present application, Figure 2 As shown, an electrical compartment 15 is also formed in the box body 10 , and the electrical compartment 15 is used to accommodate electrical components electrically connected to the battery cells 12 . Along the driving direction of the vehicle 200 , the energy compartment 11 is located in front of the electrical compartment 15 .

[0269] Among them, Figure 2 As shown, an electric appliance compartment 15 is also formed in the box body 10, that is, the box body 10 further defines the electric appliance compartment 15, and the energy compartment 11 is located in front of the electric appliance compartment 15 along the driving direction of the vehicle 200, that is, along the length direction of the vehicle 200. As an example, the box body 10 may include a third connecting beam 16, the third connecting beam 16 is located behind the first rear side beam 112, the third connecting beam 16 is spaced apart from the first rear side beam 112, the third connecting beam 16 extends along the width direction of the battery 300, and the two ends of the third connecting beam 16 are respectively connected to the two second side beams 113, the third connecting beam 16, the first rear side beam 112 and the two second side beams 113 jointly define the electric appliance compartment 15, and the electric appliance compartment 15 accommodates electrical devices electrically connected to the battery cells 12 in the energy compartment 11.

[0270] In the above technical solution, the energy compartment 11 is located in front of the electrical compartment 15, and the electrical components electrically connected to the battery cells 12 in the energy compartment 11 are arranged in the electrical compartment 15. When a collision occurs in front of the vehicle 200, the collision force is transmitted from the front to the rear of the battery 300. Since the collision force gradually decreases when it is transmitted backward, the force on the electrical components can be reduced, and the risk of short circuit caused by squeezing the electrical components is reduced, thereby further improving the reliability of the battery 300.

[0271] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, a connecting longitudinal beam 60 is provided in the energy bin 11 , and the connecting longitudinal beam 60 extends along the length direction of the battery 300 .

[0272] Among them, a connecting longitudinal beam 60 is provided in the energy bin 11, and the connecting longitudinal beam 60 extends along the length direction of the battery 300. The connecting longitudinal beam 60 can be fixedly connected to the energy bin 11, the connecting longitudinal beam 60 can be welded to the energy bin 11, or the connecting longitudinal beam 60 can be fixedly connected to the energy bin 11 by bolts. There can be multiple connecting longitudinal beams 60, and multiple connecting longitudinal beams 60 are arranged at intervals along the width direction of the battery 300, that is, along the width direction of the battery 300, two adjacent connecting longitudinal beams 60 are spaced apart, and multiple connecting longitudinal beams 60 can be parallel to each other.

[0273] In the above technical solution, by arranging a connecting longitudinal beam 60 in the energy bin 11, after the battery cell 12 is installed in the energy bin 11, the connecting longitudinal beam 60 can support the battery cell 12, so that the battery cell 12 can be more firmly installed in the energy bin 11, and when the connecting longitudinal beam 60 is fixedly connected to the energy bin 11, after the collision force is transmitted to the energy absorption structure 20, a part of the collision force can be transmitted to the connecting longitudinal beam 60, and the collision force is transmitted backward along the connecting longitudinal beam 60, which can further reduce the force on the battery cell 12, further reduce the risk of deformation and squeezing of the battery cell 12 by the energy bin 11, further reduce the risk of deformation and damage of the battery cell 12, further improve the reliability of the battery 300, and thus further improve the reliability of the vehicle 200.

[0274] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, the energy bin 11 includes a plurality of side beams 111, and the plurality of side beams 111 are connected to enclose the energy bin 11; the plurality of side beams 111 include two first side beams 112 and two second side beams 113, the two first side beams 112 are arranged opposite to and spaced apart along the length direction of the battery 300, and the two second side beams 113 are arranged opposite to and spaced apart along the width direction of the battery 300; the connecting longitudinal beam 60 is connected between the two first side beams 112.

[0275] The energy bin 11 includes a plurality of side beams 111, which are connected to form the energy bin 11. The plurality of side beams 111 include two first side beams 112 and two second side beams 113. The two first side beams 112 extend along the width direction of the battery 300, and the two second side beams 113 extend along the length direction of the battery 300. The two first side beams 112 are arranged oppositely and spaced apart along the length direction of the battery 300. The spacing distance between the two first side beams 112 can be reasonably designed according to the size of the energy bin 11. Along the length direction of the battery 300, the orthographic projections of the two first side beams 112 can have an overlapping area. The two second side beams 113 are arranged oppositely and spaced apart along the width direction of the battery 300. The spacing distance between the two second side beams 113 can be reasonably designed according to the size of the energy bin 11. Along the width direction of the battery 300, the orthographic projections of the two second side beams 113 can have an overlapping area. The connecting longitudinal beam 60 extends along the length direction of the battery 300. Both ends of the connecting longitudinal beam 60 can be fixedly connected to the side beams 111 of the energy bin 11. The connecting longitudinal beam 60 can be welded to the energy bin 11. The connecting longitudinal beam 60 can also be fixedly connected to the energy bin 11 by bolts. The connecting longitudinal beam 60 is connected between the two first side beams 112.

[0276] Along the width direction of the battery 300, the orthographic projection of the first side beam 112 and the orthographic projection of the second side beam 113 may have an overlapping area, the orthographic projection of the first side beam 112 and the orthographic projection of the second side beam 113 may partially overlap, or the orthographic projection of the first side beam 112 and the orthographic projection of the second side beam 113 may completely overlap. The orthographic projection of the connecting longitudinal beam 60 and the orthographic projection of the second side beam 113 have an overlapping area, the orthographic projection of the connecting longitudinal beam 60 and the orthographic projection of the second side beam 113 may partially overlap, or the orthographic projection of the connecting longitudinal beam 60 and the orthographic projection of the second side beam 113 may completely overlap.

[0277] In the above technical solution, by connecting the longitudinal beam 60 between the two first side beams 112, after the collision force is transmitted to the front first side beam 112 of the energy bin 11, part of the collision force can be transmitted to the connecting longitudinal beam 60 through the front first side beam 112, and transmitted along the connecting longitudinal beam 60 to the rear of the energy bin 11, and part of the collision force is transmitted along the front first side beam 112 to the two second side beams 113, and the collision force on the second side beam 113 is transmitted along the second side beam 113 to the rear of the battery 300, so that the collision force is dispersed, which can further reduce the force on the battery cell 12, further reduce the risk of deformation and extrusion of the battery cell 12 by the energy bin 11, further reduce the risk of deformation and damage of the battery cell 12, further improve the reliability of the battery 300, and thus further improve the reliability of the vehicle 200.

[0278] According to the embodiment of the present application, the vehicle 200 includes a chassis 100 and a battery 300 of the above embodiment, the battery 300 is installed on the chassis 100, the energy absorbing structure 20 is fixedly connected to the chassis 100, and at least part of the energy absorbing structure 20 is located in the middle area of ​​the chassis 100.

[0279] When the battery 300 is installed on the chassis 100, at least part of the energy absorbing structure 20 is located in the middle area of ​​the chassis 100. The chassis 100 has a median line extending along the length direction of the chassis 100. The middle area of ​​the chassis 100 refers to the area covered by a certain distance on both sides of the median line of the chassis 100 along the width direction of the chassis 100. As an example, the middle area of ​​the chassis 100 refers to the area covered by a length of 50 cm on both sides of the median line of the chassis 100 along the width direction of the chassis 100. The energy absorbing structure 20 can be directly fixedly connected to the chassis 100, or the energy absorbing structure 20 can be fixedly connected to the chassis 100 through the mounting bracket 80. For example, the energy absorbing structure 20 can be connected to the front floor 101 of the chassis 100 through the mounting bracket 80.

[0280] When the front of the vehicle 200 is hit, for example: when the vehicle 200 collides while traveling forward at high speed (for example, at a speed of more than 100 kph), after the energy absorbing structure 20 is hit, the energy absorbing structure 20 can absorb at least part of the collision force, and the collision force not absorbed by the energy absorbing structure 20 can be transmitted to the energy bin 11, the box body 10 and the chassis 100. The collision force can be transmitted along the chassis 100 to other structural parts of the vehicle 200, so as to disperse the collision force and reduce the risk of concentrated force. Compared with the prior art, the force on the battery cell 12 can be reduced, the risk of deformation and squeezing of the battery cell 12 by the energy bin 11 is reduced, the risk of deformation and damage of the battery cell 12 is reduced, and the reliability of the battery 300 is improved, thereby improving the reliability of the vehicle 200, which is conducive to solving the reliability problem of the battery 300 when the vehicle 200 is traveling at high speed. When the vehicle 200 collides while traveling at high speed, the risk of deformation and damage of the battery cell 12 can be reduced. By arranging at least a portion of the energy absorbing structure 20 in the middle area of ​​the chassis 100, when the vehicle 200 encounters a head-on collision, a rear collision, or an offset collision, the energy absorbing structure 20 can absorb the collision force to a greater extent after being hit.

[0281] According to some embodiments of the present application, see Figure 2 and Figure 4 As shown, the present application provides a battery 300, which includes a box body 10 and an energy absorption structure 20. An energy bin 11 is formed in the box body 10, and the energy bin 11 contains a plurality of battery cells 12. The energy absorption structure 20 is connected to the energy bin 11. Along the length direction of the battery 300, the energy absorption structure 20 is arranged in front of the energy bin 11. Along the width direction of the battery 300, at least part of the energy absorption structure 20 is located in the middle area of ​​the battery 300. The energy absorption structure 20 includes a first energy absorption structure 21 and a second energy absorption structure 22. The second energy absorption structure 22 is located between the first energy absorption structure 21 and the energy bin 11, and the second energy absorption structure 22 is fixedly connected to the first energy absorption structure 21 and the first side beam 112 on the front side of the energy bin 11. The second energy absorption structure 22 is connected to the first energy absorption structure 21 through a conductive cross beam 40. The conductive cross beam 40 extends along the width direction of the battery 300, and the two ends of the conductive cross beam 40 are respectively connected to the two second side beams 113. A connecting longitudinal beam 60 is provided in the energy bin 11, and the two ends of the connecting longitudinal beam 60 are respectively connected to the two first side beams 112. Along the length direction of the battery 300, the orthographic projection of the connecting longitudinal beam 60 and the orthographic projection of the energy absorption structure 20 have an overlapping area. An electrical compartment 15 is also formed in the box body 10. The electrical compartment 15 is used to accommodate electrical components electrically connected to the battery cell 12. Along the length direction of the battery 300, the energy bin 11 is located in front of the electrical compartment 15.

[0282] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0283] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0284] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery for a vehicle, characterized in that: include: A box body, wherein an energy bin is formed in the box body, and the energy bin accommodates a plurality of battery cells; An energy absorbing structure is connected to the energy bin and is arranged on at least one side in front of or behind the multiple battery cells along the length direction of the battery. The length direction of the battery is parallel to the driving direction of the vehicle. Along the width direction of the battery, at least part of the energy absorbing structure is located in the middle area of ​​the battery.

2. The battery according to claim 1, characterized in that The energy absorbing structure comprises a first energy absorbing structure, which is connected to the energy bin; along the width direction of the battery, at least a portion of the first energy absorbing structure is located in the middle area of ​​the battery.

3. The battery according to claim 2, characterized in that The energy bin comprises a plurality of side beams, which are connected to enclose the energy bin, and the first energy absorbing structure is fixedly connected to at least one of the side beams.

4. The battery according to claim 3, characterized in that At least part of the battery cells abut against at least one of the side beams.

5. The battery according to claim 3 or 4, characterized in that: The multiple side beams include two first side beams and two second side beams, the two first side beams are arranged opposite to each other and spaced apart along the length direction of the battery, the two second side beams are arranged opposite to each other and spaced apart along the width direction of the battery, and the first energy absorbing structure is connected to at least one of the two first side beams.

6. The battery according to claim 5, characterized in that Along the length direction of the battery, the orthographic projection of the first energy absorbing structure and the orthographic projection of the first side beam have an overlapping area.

7. The battery according to claim 6, characterized in that Along the length direction of the battery, the area of ​​the orthographic projection of the first energy absorbing structure is S1, and the area of ​​the overlapping region of the orthographic projection of the first energy absorbing structure and the orthographic projection of the first side beam is S2, satisfying: 10%≤S2 / S1≤100%.

8. The battery according to claim 6, characterized in that The orthographic projection of the first energy absorbing structure is completely located within the orthographic projection of the first side beam.

9. The battery according to any one of claims 2 to 4, characterized in that: The energy absorbing structure includes a plurality of first energy absorbing structures arranged along the length direction of the battery, and the first energy absorbing structures adjacent to each other along the length direction of the battery are connected.

10. The battery according to claim 9, characterized in that The energy absorbing structure further includes a first connecting beam, and the first energy absorbing structures adjacent to each other along the length direction of the battery are connected by the first connecting beam.

11. The battery according to claim 9, characterized in that Along the direction away from the energy compartment, the size of each of the first energy absorbing structures along the width direction of the battery decreases successively.

12. The battery according to any one of claims 2 to 4, characterized in that: The energy absorbing structure includes a plurality of first energy absorbing structures arranged along a width direction of the battery.

13. The battery according to claim 12, characterized in that A plurality of the first energy absorbing structures are arranged at intervals along the width direction of the battery; or, At least two of the first energy absorbing structures are arranged crosswise; or At least two of the first energy absorbing structures adjacent to each other along the width direction of the battery are connected.

14. The battery according to any one of claims 2 to 4, characterized in that: The energy absorbing structure further includes a second energy absorbing structure, and along the length direction of the battery, the second energy absorbing structure is located between the first energy absorbing structure and the energy bin.

15. The battery according to claim 14, characterized in that The second energy absorbing structure is connected to the first energy absorbing structure, and the second energy absorbing structure is connected to the energy bin.

16. The battery according to claim 15, characterized in that The energy bin includes a plurality of side beams, which are connected to enclose the energy bin, and the second energy absorbing structure is fixedly connected to the side beams.

17. The battery according to claim 15, characterized in that The invention also includes a conductive cross beam located between the first energy absorbing structure and the second energy absorbing structure, and the conductive cross beam connects the first energy absorbing structure and the second energy absorbing structure.

18. The battery according to claim 17, characterized in that The conductive beam extends along the width direction of the battery; The conductive beam is connected to the box, or the conductive beam forms a part of the box.

19. The battery according to claim 14, characterized in that Along the length direction of the battery, the orthographic projection of the first energy absorbing structure and the orthographic projection of the second energy absorbing structure have an overlapping area.

20. The battery according to claim 19, characterized in that The area of ​​the orthographic projection of the first energy absorbing structure is S1, and the area of ​​the overlapping region of the orthographic projection of the first energy absorbing structure and the orthographic projection of the second energy absorbing structure is S3, which satisfies: 20%≤S3 / S1≤100%.

21. The battery according to claim 19, characterized in that The orthographic projection of the first energy absorbing structure is completely located within the orthographic projection of the second energy absorbing structure.

22. The battery according to claim 14, characterized in that The energy absorbing structure includes a plurality of second energy absorbing structures arranged along the length direction of the battery, and the second energy absorbing structures adjacent to each other along the length direction of the battery are connected.

23. The battery according to claim 22, characterized in that The energy absorbing structure further includes a second connecting beam, and the adjacent second energy absorbing structures along the length direction of the battery are connected by the second connecting beam.

24. The battery according to claim 22, characterized in that Along the direction away from the energy compartment, the size of each of the second energy absorbing structures along the width direction of the battery decreases successively.

25. The battery according to claim 14, characterized in that The energy absorbing structure includes a plurality of second energy absorbing structures arranged along a width direction of the battery.

26. The battery according to claim 25, characterized in that A plurality of the second energy absorbing structures are arranged at intervals along the width direction of the battery; or, At least two of the second energy absorbing structures are arranged crosswise; or At least two of the second energy absorbing structures adjacent to each other along the width direction of the battery are connected.

27. The battery according to claim 14, characterized in that The first energy absorbing structure includes at least one of an energy absorbing box, a buffer frame, a spring and an airbag; and / or The second energy absorbing structure includes at least one of an energy absorbing box, a buffer frame, a spring and an air bag.

28. The battery according to claim 27, characterized in that The energy absorption box has a hollow cavity that penetrates the energy absorption box along the length direction of the battery.

29. The battery according to claim 27, characterized in that The buffer frame encloses and forms a buffer cavity.

30. The battery according to claim 29, characterized in that At least one of an energy absorption box, a spring and an air bag is arranged in the buffer cavity.

31. The battery according to any one of claims 1 to 4, characterized in that An electrical compartment is also formed in the box body, and the electrical compartment is used to accommodate electrical components electrically connected to the battery cells. Along the driving direction of the vehicle, the energy compartment is located in front of the electrical compartment.

32. The battery according to any one of claims 1 to 4, characterized in that A connecting longitudinal beam is arranged in the energy bin, and the connecting longitudinal beam extends along the length direction of the battery.

33. The battery according to claim 32, characterized in that The energy bin includes a plurality of side beams, which are connected to enclose the energy bin; the plurality of side beams include two first side beams and two second side beams, the two first side beams are opposite to and spaced apart along the length direction of the battery, and the two second side beams are opposite to and spaced apart along the width direction of the battery; the connecting longitudinal beam is connected between the two first side beams.

34. A vehicle, characterized in that: It comprises a chassis and a battery according to any one of claims 1-33, wherein the battery is mounted on the chassis, the energy absorbing structure is fixedly connected to the chassis, and at least a part of the energy absorbing structure is located in the middle area of ​​the chassis.

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