Search

CN-224232778-U - Battery pack and box assembly thereof

CN224232778UCN 224232778 UCN224232778 UCN 224232778UCN-224232778-U

Abstract

The application discloses a battery pack and a box assembly thereof, and relates to the technical field of batteries. The box body assembly comprises a main body, wherein an accommodating cavity for accommodating the single battery is formed in the main body, the two opposite ends of the main body are respectively provided with a first end part and a second end part, and when the box body assembly is installed on a vehicle, the first end part is close to the front end of the vehicle relative to the second end part. The case assembly further includes a protector coupled to an outer wall surface of the first end portion, and the protector has a guide slope configured to guide the first end portion to be lifted when impacted by an external obstacle. Through the mode, the battery pack is beneficial to ensuring the structural reliability and stability of the battery pack.

Inventors

  • GUO CHUANG
  • LI ZHI
  • XIAO HUIHUI

Assignees

  • 浙江凌骁能源科技有限公司
  • 浙江零跑科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (10)

  1. 1. A housing assembly for a battery pack, the housing assembly comprising: A main body having an accommodating chamber for accommodating the unit cells therein, wherein opposite ends of the main body are a first end and a second end, respectively, the first end being close to a front end of the vehicle relative to the second end when the case assembly is mounted to the vehicle, and And a protector attached to an outer wall surface of the first end portion, and having a guide slope configured to guide the first end portion to be lifted when being impacted by an external obstacle.
  2. 2. The cabinet assembly according to claim 1, wherein, At least a portion of the guide ramp is located at the bottom of the body.
  3. 3. A tank assembly as claimed in claim 1 or 2, wherein, The protector includes: A first protection part connected to a wall surface of the first end part facing away from the second end part, and The second protection part is positioned at the bottom of the main body, and the surface of the second protection part facing away from the main body is provided with the guide inclined surface.
  4. 4. A tank assembly as claimed in claim 1 or 2, wherein, The included angle between the guide inclined surface and the outer bottom wall of the main body is theta, and the included angle is more than or equal to 5 degrees and less than or equal to 30 degrees.
  5. 5. The cabinet assembly according to claim 1, wherein, The box assembly further includes: The support bracket is arranged in the accommodating cavity, and a buffer cavity is arranged between the support bracket and the bottom plate of the main body.
  6. 6. The cabinet assembly according to claim 5, wherein, The box body assembly is provided with a first direction and a second direction which are intersected, and the supporting brackets and the bottom plate are distributed along the first direction; The support bracket includes: a first supporting part, a first buffer cavity is arranged between the first supporting part and the bottom plate, and And the first supporting part is connected with the second supporting part in the second direction, and a second buffer cavity is arranged between the second supporting part and the bottom plate, wherein the size of the first buffer cavity in the first direction is larger than that of the second buffer cavity in the first direction.
  7. 7. The cabinet assembly according to claim 6, wherein, The first supporting part is provided with a first surface which is opposite to the bottom plate, the second supporting part is provided with a second surface which is opposite to the bottom plate, and the second surface is close to the bottom plate relative to the first surface, so that one side of the second supporting part which is opposite to the bottom plate is provided with an avoidance groove; the box assembly further includes: The heat exchange plate is arranged on one side, opposite to the bottom plate, of the support bracket, and at least part of the heat exchange plate is accommodated in the avoidance groove.
  8. 8. The cabinet assembly according to claim 7, wherein, The heat exchange plate comprises a first plate part and a second plate part, wherein the first plate part is overlapped on one side, far away from the support bracket, of the second plate part, the first plate part is connected with the support bracket, and at least part of the second plate part is accommodated in the avoidance groove.
  9. 9. The cabinet assembly according to claim 5, wherein, The number of the support brackets is multiple, and the support brackets are distributed in the accommodating cavity at intervals; the box assembly further includes: The buffer piece is arranged between two adjacent support brackets.
  10. 10. A battery pack comprising a single battery and the case assembly according to any one of claims 1 to 9, the single battery being accommodated in an accommodation chamber of the case assembly.

Description

Battery pack and box assembly thereof Technical Field The application relates to the technical field of batteries, in particular to a battery pack and a box assembly thereof. Background In the running process of the new energy automobile, the obstacle is easy to collide with the front end of the battery pack, and then the whole bottom of the battery pack is scratched with the obstacle. When driving on a pothole road, the bottom of the battery pack may be impacted by road bumps, stones or other obstacles in a vertical direction. The battery pack is easy to damage when being impacted by external barriers due to the factors, so that the liquid cooling plate and the single battery inside the battery pack are easy to extrude, and the problems that the liquid cooling plate is broken and leaks liquid, the single battery is extruded to cause short circuit and fire and the like are likely to occur. Disclosure of utility model The application provides a battery pack and a box assembly thereof, which are beneficial to ensuring the structural reliability and stability of the battery pack. The application provides a box body component of a battery pack. The box body assembly comprises a main body, wherein an accommodating cavity for accommodating the single battery is formed in the main body, the two opposite ends of the main body are respectively provided with a first end part and a second end part, and when the box body assembly is installed on a vehicle, the first end part is close to the front end of the vehicle relative to the second end part. The case assembly further includes a protector coupled to an outer wall surface of the first end portion, and the protector has a guide slope configured to guide the first end portion to be lifted when impacted by an external obstacle. In one embodiment of the application, at least part of the guiding ramp is located at the bottom of the body. In one embodiment of the application, the protection piece comprises a first protection part and a second protection part, wherein the first protection part is connected to a wall surface of the first end part, which is away from the second end part, and the second protection part is positioned at the bottom of the main body, and the surface of the second protection part, which is away from the main body, is provided with a guide inclined surface. In one embodiment of the present application, the angle θ between the guide slope and the outer bottom wall of the main body is 5≤θ≤30°. In one embodiment of the application, the box assembly further comprises a support bracket arranged in the accommodating cavity, and a buffer cavity is arranged between the support bracket and the bottom plate of the main body. In one embodiment of the application, the box assembly is provided with a first direction and a second direction which are intersected, the supporting bracket and the bottom plate are distributed along the first direction, the supporting bracket comprises a first supporting part, a first buffer cavity is arranged between the first supporting part and the bottom plate, and a second supporting part, the first supporting part is connected with the second supporting part in the second direction, a second buffer cavity is arranged between the second supporting part and the bottom plate, and the size of the first buffer cavity in the first direction is larger than that of the second buffer cavity in the first direction. In one embodiment of the application, the first supporting part is provided with a first surface which is opposite to the bottom plate, the second supporting part is provided with a second surface which is opposite to the bottom plate, and the second surface is close to the bottom plate relative to the first surface, so that one side of the second supporting part which is opposite to the bottom plate is provided with an avoidance groove, the box body assembly further comprises a heat exchange plate, the heat exchange plate is arranged on one side of the supporting bracket which is opposite to the bottom plate, and at least part of the heat exchange plate is accommodated in the avoidance groove. In an embodiment of the application, the heat exchange plate comprises a first plate portion and a second plate portion, wherein the first plate portion is stacked on one side, away from the support bracket, of the second plate portion, the first plate portion is connected with the support bracket, and at least part of the second plate portion is accommodated in the avoidance groove. In one embodiment of the application, the number of the supporting brackets is a plurality, the supporting brackets are distributed in the accommodating cavity at intervals, and the box body assembly further comprises a buffer piece which is arranged between two adjacent supporting brackets. Correspondingly, the application also provides a battery pack which comprises a single battery and the box body assembly as described in the embodiment, wherein the si