Search

CN-224232846-U - Battery case cover, battery pack and vehicle

CN224232846UCN 224232846 UCN224232846 UCN 224232846UCN-224232846-U

Abstract

The application provides a battery box cover, a battery pack and a vehicle, which relate to the technical field of battery packs and are used for solving the problems that the corner of the battery box cover is lower in strength and easy to crack, the battery box cover comprises a box cover body and a reinforcing structure, the box cover body comprises a plurality of side plates and a plurality of flange plates, the plurality of side plates are sequentially connected end to form an accommodating space in a surrounding manner, the plurality of flange plates are arranged along the peripheral side of the accommodating space and are connected with the side plates, a first included angle is formed between each flange plate and the corresponding side plate, and the edge of each flange plate is provided with a flanging; the reinforcing structure is at least coated at the joint of the two adjacent side plates and is respectively connected with the two adjacent side plates. The application provides a battery box cover, a battery pack and a vehicle, which improve the structural strength of corners of the battery box cover.

Inventors

  • LI JINPING
  • XIA MING
  • WU XIAOSI
  • SONG CHUNLEI

Assignees

  • 合肥国轩高科动力能源有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (10)

  1. 1. A battery case cover, comprising: The box cover body (100) comprises a plurality of side plates (110) and a plurality of flange plates (120), wherein the side plates (110) are sequentially connected end to end so as to enclose and form an accommodating space, the flange plates (120) are arranged along the peripheral side of the accommodating space and are connected with the side plates (110), a first included angle is formed between the flange plates (120) and the side plates (110) at corresponding positions, and the edges of the flange plates (120) are provided with flanges; The reinforcing structure (200) is at least coated at the joint of the two adjacent side plates (110) and is respectively connected with the two adjacent side plates (110).
  2. 2. The battery compartment cover of claim 1, wherein the reinforcement structure (200) comprises a reinforcement plate (210), the reinforcement plate (210) comprising a first sub-reinforcement plate (211) and a second sub-reinforcement plate (212) connected to each other; The first sub-reinforcing plate (211) and the second sub-reinforcing plate (212) are provided with a second included angle, the second included angle is matched with the first included angle, the reinforcing plate (210) covers the joint of the two adjacent side plates (110), the first sub-reinforcing plate (211) is in fit connection with one of the two corresponding adjacent side plates (110), and the second sub-reinforcing plate (212) is in fit connection with the other of the two corresponding side plates (110).
  3. 3. The battery case cover according to claim 2, wherein the reinforcement structure (200) further comprises a pressing plate (220), the pressing plate (220) comprises a first sub-pressing plate (221) and a second sub-pressing plate (222) which are connected with each other, the pressing plate (220) covers the connection part of the side plate (110) and the flange plate (120) connected with the side plate (110), the first sub-pressing plate (221) is connected with the corresponding side plate (110) and the reinforcement plate (210) on the side plate (110), and the second sub-pressing plate (222) is connected with the corresponding flange plate (120).
  4. 4. A battery compartment cover according to claim 3, wherein the pressing plate (220) further comprises a third sub-pressing plate (223), the third sub-pressing plate (223) being provided on the flange plate (120) adjacent to the second sub-pressing plate (222) in the circumferential direction and being connected to the adjacent reinforcing plate (210), and the third sub-pressing plate (223) being connected to one end of the second sub-pressing plate (222).
  5. 5. The battery case cover according to claim 4, wherein the pressing plate (220) further comprises a connection structure (224), the connection structure (224) is connected between the second sub-pressing plate (222) and the third sub-pressing plate (223), the connection structure (224) is an arc structure bent toward a side facing away from the flange plate (120), and the arc structure corresponds to a connection position of two adjacent flange plates (120).
  6. 6. A battery case cover according to claim 3, wherein the first sub-pressing plate (221) has a uniform thickness from the approaching direction to the separating direction from the second sub-reinforcing plate (212).
  7. 7. The battery compartment cover of any of claims 3-6, wherein the reinforcement structure (200) further comprises at least one stiffener, at least one of the stiffener being disposed between the side panel (110) and the flange panel (120).
  8. 8. The battery case cover according to claim 4, wherein the connection of the reinforcing plate (210) and the pressing plate (220) is connected by welding.
  9. 9. A battery pack, characterized by, including battery box (20), connecting piece (30), sealing member (40) and battery case lid (10) of any one of claims 1-8, battery case lid (10) set up in on battery box (20) and with battery box (20) are connected, battery case lid (10) with battery box (20) enclose jointly and establish and form sealed holding chamber, battery case lid (10) pass through connecting piece (30) with battery box (20) are connected, sealing member (40) set up in connecting piece (30) with between battery case lid (10) and battery box (20).
  10. 10. A vehicle comprising a vehicle body and the battery pack of claim 9, the battery pack being disposed within the vehicle body.

Description

Battery case cover, battery pack and vehicle Technical Field The application relates to the technical field of battery packs, in particular to a battery box cover, a battery pack and a vehicle. Background The battery case cover is used as a core component of the battery pack, the strength requirement is required to be met, the sealing waterproof property of the battery pack is ensured, and the performance of the battery case cover directly influences the safety of the battery pack and the whole vehicle. The bending box cover is used as a main forming process of the power battery box body, has the characteristics of no need of die sinking and lower cost, but in the existing bending and welding formed box cover, the corner splicing position is often positioned at the junction of three surfaces of the box cover, stress concentration is easy to occur at the position in the running process of a vehicle, and particularly the corner welding seam of the box cover is easy to fail and crack under the vibration working condition or after long-term use, so that the structural stability and safety of the battery pack are affected. Therefore, how to enhance the structural strength of the corners of the battery case cover and improve the safety and reliability of the battery pack is an important technical problem to be solved. Disclosure of utility model The application provides a battery box cover, a battery pack and a vehicle, which can strengthen the structural strength of the corner of the battery box cover and have better stability and safety. The application provides a battery box cover, which comprises a box cover body and a reinforcing structure, wherein the box cover body comprises a plurality of side plates and a plurality of flange plates, the side plates are sequentially connected end to enclose to form an accommodating space, the flange plates are arranged along the peripheral side of the accommodating space and are connected with the side plates, a first included angle is formed between the flange plates and the side plates which are correspondingly arranged, and the edges of the flange plates are provided with turned edges; The reinforcing structure is at least coated at the joint of the two adjacent side plates and is respectively connected with the two adjacent side plates. As described above, the reinforcing structure includes a reinforcing plate, the reinforcing plate includes a first sub-reinforcing plate and a second sub-reinforcing plate that are connected to each other, a second included angle is formed between the first sub-reinforcing plate and the second sub-reinforcing plate, the second included angle is matched with the first included angle, the reinforcing plate covers the junction between two adjacent side plates, and the first sub-reinforcing plate is bonded to one of the two adjacent side plates, and the second sub-reinforcing plate is bonded to the other of the two adjacent side plates. As described above, the reinforcing structure further includes a pressing plate, where the pressing plate includes a first sub-pressing plate and a second sub-pressing plate that are connected to each other, the pressing plate wraps the junction of the side plate and the flange plate connected to the side plate, and the first sub-pressing plate is connected to the corresponding side plate and the reinforcing plate on the side plate, and the second sub-pressing plate is connected to the corresponding flange plate. The battery box cover comprises a first sub-pressing plate, a second sub-pressing plate, a third sub-pressing plate, a reinforcing plate, a first flange plate, a second flange plate, a third flange plate and a third flange plate. The battery box cover comprises a first sub-pressing plate, a second sub-pressing plate, a third sub-pressing plate, a connecting structure and a connecting structure. As described above, the thickness of the first sub-pressing plate is uniform from the direction approaching to the direction separating from the second sub-reinforcing plate. The battery box cover, the reinforcing structure further comprises at least one reinforcing rib, and the at least one reinforcing rib is arranged between the side plate and the flange plate. As for the battery case cover, the connection part of the reinforcing plate and the pressing plate is connected in a welding mode. In a second aspect, an embodiment of the present application provides a battery pack, including a battery box body, a connecting piece, a sealing piece, and the battery box cover, where the battery box cover is disposed on the battery box body and connected with the battery box body, the battery box cover and the battery box body enclose a sealed accommodating cavity together, the battery box cover is connected with the battery box body through the connecting piece, and the sealing piece is disposed between the connecting piece and the battery box cover and the battery box body. In a third aspect, an embodiment of the pr