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EP-4145604-B1 - BATTERY PACK AND VEHICLE

EP4145604B1EP 4145604 B1EP4145604 B1EP 4145604B1EP-4145604-B1

Inventors

  • TAN, Liangwen
  • TAN, JING
  • CHEN, WENHUI

Dates

Publication Date
20260506
Application Date
20210330

Claims (14)

  1. A battery pack (1000) for powering a vehicle, comprising a tray (2) and a temperature equalisation plate (3); wherein the tray (2) comprises first edge beams (21) for enclosing a receiving space (211) having a top opening; the temperature equalisation plate (3) is provided at the top opening of the tray (2) and comprises two opposite first edge portions (32), and both of the first edge portions (32) are mounted on the first edge beams (21); and a clamping slot (212) is provided on an inner surface of one of the first edge beam (21) and the first edge portion (32) facing the receiving space (211), and the other of the first edge beam (21) and the first edge portion (32) is inserted into the clamping slot (212); characterized in that the battery pack further comprises a plurality of cooling tubes (31) provided in sequence on an outer surface of the temperature equalisation plate (3) facing away from the receiving space (211), and a heater (311) provided between every two adjacent cooling tubes (31).
  2. The battery pack according to claim 1, wherein the tray (2) has two first edge beams (21) spaced apart, and the two first edge beams (21) respectively cooperate with two first edge portions (32).
  3. The battery pack according to claim 1 or 2, wherein the clamping slot (212) is provided on an inner surface of the first edge beam (21) facing the receiving space (211), and the first edge portion (32) is inserted into the clamping slot (212) of the first edge beam (21).
  4. The battery pack according to claim 3, wherein the first edge portion (32) contacts with or abuts against bottom wall of the clamping slot (212), and the first edge portion (32) is adhered to a side wall of the clamping slot (212).
  5. The battery pack according to any one of the preceding claims, wherein the cooling tubes (31) are integrally aluminum-extruded with the temperature equalisation plate (3), and the heaters (311) are heating films.
  6. The battery pack according to claim 5, wherein a thickness of the cooling tubes (31) is greater than a thickness of the heating film (311).
  7. The battery pack according to any one of claims 2-6, wherein the tray (2) further comprises two second edge beams (29) provided opposite to each other and a reinforcing beam (23), the first edge beam (21) and the two second edge beams (29) together enclose the receiving space (211), and the reinforcing beam (23) is parallel with the second edge beams (29).
  8. The battery pack according to claim 7, wherein the temperature equalisation plate (3) comprises a connecting region (34) and a bearing region (35) other than the connecting region, a thickness of the connecting region (34) is greater than a thickness of the bearing region (35), and the connecting region (34) is connected to the reinforcing beam (23).
  9. The battery pack according to claim 8, wherein the connecting region (34) of the temperature equalisation plate (3) is riveted or screwed to the reinforcing beam (23).
  10. The battery pack according to any one of claims 7 to 9, wherein a parallel direction of the reinforcing beam (23) and the second edge beam (29) is a lengthwise extension direction of the reinforcing beam (23), and two bosses (33) are provided on the inner surface of the temperature equalisation plate (3) facing the receiving space (211), and the two bosses (33) respectively abut against two end faces of the reinforcing beam (23) along the parallel direction.
  11. The battery pack according to any one of claims 1 to 10, wherein the temperature equalisation plate (3) is provided with a connecting member (36) for connection to a vehicle.
  12. The battery pack according to any one of claims 1 to 11, wherein the battery pack further comprises a battery module (1) placed in the receiving space (211), and the temperature equalisation plate (3) is bonded to the battery module (1).
  13. The battery pack according to any one of claims 1 to 12, wherein the battery pack further comprises a cover plate (22), the cover plate (22) is located on the temperature equalisation plate (3) and covers the top opening of the receiving space (211), and a sealing cushion (5) is provided between the cover plate (22) and the temperature equalisation plate (3).
  14. A vehicle comprising the battery pack (1000) according to any one of claims 1 to 13.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present disclosure claims priority to Chinese Patent Application No. 202010517961.5 filed on June 09, 2020. FIELD The present disclosure relates to the field of batteries, and more particularly to a battery pack and vehicle. BACKGROUND As a main power source of new energy electric vehicles, battery pack directly affects the performance and safety of the electric vehicles. According to a battery pack structure, a tray is generally used to load a power battery and is sealed by a tray cover to form a battery pack, and the battery pack is mounted on an electric vehicle. In the related art, an edge beam of a tray is designed to be light in weight and cost reductive, but there is a problem of strength of the tray. When a battery pack collides, the edge beam of the tray is easily extruded to be deformed, so that a battery pole in the tray is extruded, and safety accidents such as battery short circuit are caused. For example, document FR 3 085 545 A1 relates to an electrical module comprising a plurality of battery cells immersed in a dielectric fluid. The module also includes an electronic battery management circuit immersed in the dielectric fluid. SUMMARY The present disclosure is to resolve at least one of the technical problems in the related art. The present invention refers to a battery pack and to a vehicle with the features of the independent claims. To this end, the present disclosure provides a battery pack to prevent the battery pack from being extruded to be deformed. The present disclosure also provides a vehicle having the above battery pack. A battery pack for powering a vehicle according to the present invention includes a tray and a temperature equalisation plate; the tray includes first edge beams for enclosing a receiving space having a top opening; the temperature equalisation plate is provided at the top opening of the tray and includes two opposite first edge portions, and both of the first edge portions are mounted on the first edge beams; and a clamping slot is provided on an inner surface of one of the first edge beam and the first edge portion facing the receiving space, and the other of the first edge beam and the first edge portion is inserted into the clamping slot. According to the battery pack of an embodiment of the present disclosure, by matching both first edge portions of the temperature equalisation plate with the first edge beams enclosing the receiving space, the temperature equalisation plate supports the first edge beams, and when the tray is extruded or collided, the tray can transmit a force to the temperature equalisation plate, thereby increasing the structural strength of the tray and preventing the first edge beams from deforming to extrude the battery module in the receiving space after being extruded to achieve the purpose of protecting the battery module in the receiving space, so that the operation of the battery module is safe and reliable. In some embodiments of the present disclosure, the tray has two first edge beams spaced apart, and the two first edge beams respectively cooperate with two first edge portions. In some embodiments of the present disclosure, the clamping slot is provided on an inner surface of the first edge beam facing the receiving space, and the first edge portion is inserted into the clamping slot of the first edge beam. In some embodiments of the present disclosure, the first edge portion contacts with or abuts against a bottom wall of the clamping slot, and the first edge portion is adhered to a side wall of the clamping slot. According to the invention, the battery pack further includes a number of cooling tubes provided in sequence on an outer surface of the temperature equalisation plate facing away from the receiving space, and a heater provided between every two adjacent cooling tubes. In some embodiments of the present disclosure, the cooling tubes are integrally aluminum-extruded with the temperature equalisation plate, and the heaters are heating films. In some embodiments of the present disclosure, a thickness of the cooling tubes is greater than a thickness of the heating film. In some embodiments of the present disclosure, the tray further includes two second edge beams provided opposite to each other and a reinforcing beam, the first edge beams and the two second edge beams together enclose the receiving space, and the reinforcing beam is parallel with the second edge beams. In some embodiments of the present disclosure, the temperature equalisation plate includes a connecting region and a bearing region other than the connecting region, a thickness of the connecting region is greater than a thickness of the bearing region, and the connecting region is connected to the reinforcing beam. In some embodiments of the present disclosure, the connecting region of the temperature equalisation plate is riveted or screwed to the reinforcing beam. In some embodiments of the present disclosure,