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CN-224217597-U - Embedded battery package buffer structure, battery package and vehicle

CN224217597UCN 224217597 UCN224217597 UCN 224217597UCN-224217597-U

Abstract

The utility model discloses an embedded battery pack buffer structure, a battery pack and a vehicle, wherein the embedded battery pack buffer structure comprises a buffer assembly arranged between two battery cells, the buffer assembly comprises two side plates and a plurality of buffer layers, the two side plates are arranged at intervals along a first direction, the plurality of buffer layers are arranged at intervals along a second direction, the plurality of buffer layers are arranged between the two side plates, two ends of the buffer layers are respectively connected with the two side plates, and the plurality of buffer layers are perpendicular to the side plates, wherein the second direction is perpendicular to the first direction. The battery pack comprises a battery pack frame and a plurality of battery cell rows arranged in the battery pack frame, wherein the middle part of at least one battery cell row is provided with the embedded battery pack buffer structure. The utility model can meet the clamping and box-in requirement of the battery core box-in and ensure the assembly efficiency of the battery core clamping and box-in a row, and can also ensure that the battery pack has better safety.

Inventors

  • QI CHAO
  • LIU WEIGUO

Assignees

  • 深蓝汽车科技有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. The embedded battery pack buffer structure is characterized by comprising a buffer assembly (1) arranged between two battery cells (301), wherein the buffer assembly (1) comprises two side plates (101) and a plurality of buffer layers (102), the two side plates (101) are arranged at intervals along a first direction, the plurality of buffer layers (102) are arranged at intervals along a second direction, the plurality of buffer layers (102) are arranged between the two side plates (101), two ends of the buffer layers (102) are respectively connected with the two side plates (101), the plurality of buffer layers (102) are perpendicular to the side plates (101), and the second direction is perpendicular to the first direction.
  2. 2. The in-cell battery pack buffering structure of claim 1, wherein the length of the buffering layer (102) in the first direction is greater than the length of the buffering layer (102) in the second direction.
  3. 3. The in-cell battery pack buffering structure of claim 2, wherein the length of the buffering layer (102) in the first direction is at least 10 times the length of the buffering layer (102) in the second direction.
  4. 4. A battery pack characterized by comprising a battery pack frame (2) and a plurality of cell lines arranged in the battery pack frame (2), wherein the middle part of at least one cell line is provided with the embedded battery pack buffer structure as claimed in any one of claims 1-3.
  5. 5. The battery pack according to claim 4, wherein a plurality of cell columns are sequentially arranged along a second direction, two cell columns closest to the battery pack frame (2) are buffer cell columns (3 a), the rest of the cell columns are conventional cell columns (3 b) or buffer cell columns (3 a), each conventional cell column (3 b) comprises a plurality of cells (301) sequentially arranged along the first direction, the middle part of each buffer cell column (3 a) is provided with an embedded battery pack buffer structure, a plurality of cells (301) are sequentially arranged along the first direction on two sides of each buffer cell column (3 a) corresponding to the embedded battery pack buffer structure, and all the cells (301) are connected in series.
  6. 6. The battery pack according to claim 5, wherein the lengths of the plurality of battery cells (301) are along the second direction, the widths of the plurality of battery cells (301) are along the first direction, and the battery cells (301) on two sides of the embedded battery pack buffer structure are connected with the side plates (101) through rubber.
  7. 7. The battery pack according to claim 5, wherein the length of the buffer member (1) in the first direction is an integral multiple of the width of the cell (301) in the first direction.
  8. 8. The battery pack according to claim 5, wherein the poles of the electric cores (301) on two sides of the buffer structure of the embedded battery pack are connected through long aluminum rows (4), the height of the buffer assembly (1) is lower than that of the electric cores (301), and the poles of the other electric cores (301) are connected through short aluminum rows (5).
  9. 9. The battery pack according to claim 5, wherein the battery pack frame (2) further comprises a front beam (201) and a rear beam (202), the front beam (201) and the rear beam (202) are arranged at intervals along a first direction, and a plurality of the electric cells are arranged between the front beam (201) and the rear beam (202).
  10. 10. A vehicle comprising a vehicle body and a battery pack according to any one of claims 4 to 9, the battery pack being provided on the vehicle body.

Description

Embedded battery package buffer structure, battery package and vehicle Technical Field The utility model relates to a power battery pack, in particular to an embedded battery pack buffer structure, a battery pack and a vehicle. Background With the continuous improvement of the permeability of new energy automobiles, the collision safety performance of vehicles, particularly the protection capability of a power battery system, has become a key technical bottleneck for restricting the development of industry. The power battery pack is used as a whole vehicle energy core carrier, and the structural anti-collision capability of the power battery pack is directly related to the life safety of passengers. When the car body is impacted by side, the deformation of the battery pack can cause the safety problems of deformation short circuit, fire and the like of the battery cell. Considering the cost pressure and energy density of new energy battery packs, the current battery packs are usually biased to be light-weight, so that the protection performance of the battery packs is seriously weakened, but the problem of weakening the battery packs and external impact safety is a contradictory problem, and the balance between light weight and safety cannot be achieved. Disclosure of utility model Therefore, the utility model aims to provide an embedded battery pack buffer structure, a battery pack and a vehicle, which can meet the requirement of clamping battery cells into a box and ensure the assembly efficiency of clamping battery cells into the box in a row, and can also cope with subsequent expansion support in the use process, so that the battery pack meets the service life requirement and the reliability requirement, has better buffer property on the side surface, can be quickly collapsed when an obstacle invades the inside of the power battery pack, and transmits external load to a vehicle body and chassis structure, thereby ensuring that the battery pack has better safety. The utility model discloses an embedded battery pack buffer structure, which comprises a buffer assembly arranged between two battery cells, wherein the buffer assembly comprises two side plates and a plurality of buffer layers, the two side plates are arranged at intervals along a first direction, the plurality of buffer layers are arranged at intervals along a second direction, the plurality of buffer layers are arranged between the two side plates, two ends of the buffer layers are respectively connected with the two side plates, and the plurality of buffer layers are perpendicular to the side plates, wherein the second direction is perpendicular to the first direction. Further, the length of the buffer layer in the first direction is greater than the length of the buffer layer in the second direction. Further, the length of the buffer layer in the first direction is at least 10 times the length of the buffer layer in the second direction. The battery pack comprises a battery pack frame and a plurality of battery cell columns arranged in the battery pack frame, wherein the middle part of at least one battery cell column is provided with the embedded battery pack buffer structure. Further, the plurality of battery cell columns are sequentially arranged along the second direction, two battery cell columns closest to the battery pack frame are buffer battery cell columns, the rest battery cell columns are conventional battery cell columns or buffer battery cell columns, each conventional battery cell column comprises a plurality of battery cells sequentially arranged along the first direction, the middle part of each buffer battery cell column is provided with an embedded battery pack buffer structure, a plurality of battery cells are sequentially arranged along the first direction on two sides of each buffer battery cell column corresponding to the embedded battery pack buffer structure, and all the battery cells are connected in series. Furthermore, the lengths of the battery cells are all along the second direction, the widths of the battery cells are all along the first direction, and the battery cells on two sides of the embedded battery pack buffer structure are connected with the side plates through rubber. Further, the length of the buffer assembly in the first direction is an integral multiple of the width of the battery cell in the first direction. Furthermore, the poles of the electric cores at the two sides of the embedded battery pack buffer structure are connected through long aluminum rows, the height of the buffer assembly is lower than that of the electric cores, and the poles of the other electric cores are connected through short aluminum rows. Further, the battery pack frame further comprises a front cross beam and a rear cross beam, wherein the front cross beam and the rear cross beam are arranged at intervals along the first direction, and a plurality of battery cells are arranged between the front cross beam and the rear c