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CN-224232769-U - Battery pack

CN224232769UCN 224232769 UCN224232769 UCN 224232769UCN-224232769-U

Abstract

The utility model discloses a battery pack, which comprises a box body, wherein a battery pack is arranged in the box body, the battery pack comprises a plurality of battery monomers which are distributed along a first direction, the battery monomers are provided with a first surface, an exposed area is arranged on the first surface, an upper heat exchange plate is arranged on the upper part of the exposed area, the upper heat exchange plate is contacted with the metal surface of the battery monomers through the exposed area, and the upper heat exchange plate is arranged in an extending way along the first direction. The battery pack improves the heat exchange efficiency of the cold plate, has better temperature control and regulation effects on the battery pack, improves the safety performance of the battery, and prolongs the service life of the battery.

Inventors

  • Lv Qilong
  • LUO MINGMING
  • ZHAO HONGKUAN
  • YIN XUCHENG

Assignees

  • 中创新航科技集团股份有限公司

Dates

Publication Date
20260512
Application Date
20250516

Claims (17)

  1. 1. The utility model provides a battery package, includes the box, be provided with the group battery in the box, its characterized in that, the group battery includes a plurality of battery monomer of arranging along first direction, the battery monomer has first face, be provided with the naked district on the first face, the upper portion in naked district is provided with the heat exchanger plate, go up the heat exchanger plate through naked district with the contact of battery monomer's metal surface, go up the heat exchanger plate and extend along first direction and set up.
  2. 2. The battery pack of claim 1, wherein the upper heat exchange plate is connected to the metal surface at the exposed area by a first connection layer.
  3. 3. The battery pack according to claim 1 or 2, wherein the first face of the battery cell is provided with two output terminals, and the exposed region is provided between the two output terminals.
  4. 4. The battery pack according to claim 1 or 2, wherein the first face of the battery cell is provided with two output terminals, and the exposed region is provided outside the two output terminals.
  5. 5. The battery pack according to claim 1 or 2, wherein the battery cell further has a second face provided with an output terminal.
  6. 6. The battery pack according to claim 4, wherein a plurality of the battery packs are provided, the plurality of the battery packs are arranged in a second direction, the second direction is perpendicular to the first direction, and the upper heat exchange plates are disposed on the exposed areas of the adjacent two battery packs.
  7. 7. The battery pack according to claim 1, wherein the area ratio of the projected area of the upper heat exchange plate on the first face of the battery cell to the exposed area is 1.1-2.5.
  8. 8. The battery pack according to claim 7, wherein the first face of the battery cell is provided with two output terminals, and the edge of the exposed area near the output terminal is spaced from the center position of the output terminal by a distance of 30-50mm.
  9. 9. The battery pack of claim 8, wherein the exposed area is 2-6mm from the long side edge of the first face.
  10. 10. The battery pack of claim 7, wherein a projection of the upper heat exchange plate onto the first face covers the bare area.
  11. 11. The battery pack of claim 10, wherein both sides of the upper heat exchange plate in the first direction are located outside the bare area.
  12. 12. The battery pack according to claim 10, wherein both sides of the upper heat exchange plate in the first direction are disposed flush with both sides of the bare area in the first direction; Or one side edge of the upper heat exchange plate along the first direction is positioned outside one side edge of the exposed area along the first direction, and the other side edge of the upper heat exchange plate is arranged flush with the other side edge of the exposed area along the first direction.
  13. 13. A battery pack according to claim 3, wherein the upper heat exchange plate has a first distance, the output ends are spaced apart by a second distance, and the ratio of the first distance to the second distance is 0.4-0.8.
  14. 14. The battery pack of claim 13, wherein the first distance is 60-105mm and the second distance is 60-130mm.
  15. 15. The battery pack according to claim 1, wherein a plurality of the battery packs are provided, the plurality of the battery packs are arranged in a second direction, the number of the upper heat exchange plates is the same as the number of the battery packs, one upper heat exchange plate is provided on the top surface of each battery pack, and the plurality of upper heat exchange plates are arranged at intervals in the second direction; The plurality of upper heat exchange plates are communicated through a collecting pipe, and an upper liquid inlet and an upper liquid outlet are formed in the collecting pipe.
  16. 16. The battery pack of claim 15, wherein the housing comprises a plurality of rims, and the manifold is provided with connecting lugs, the connecting lugs being connected to the rims by fasteners.
  17. 17. The battery pack according to claim 1, further comprising a lower heat exchange plate, wherein a lower liquid inlet and a lower liquid outlet are formed in the lower heat exchange plate; The water inlet end of the upper heat exchange plate is communicated with the upper liquid inlet, the water outlet end of the upper heat exchange plate is communicated with the upper liquid outlet, the lower liquid inlet and the upper liquid inlet are communicated with the total liquid inlet, and the upper liquid outlet and the lower liquid outlet are communicated with the total liquid outlet.

Description

Battery pack Technical Field The utility model relates to the technical field of batteries, in particular to a battery pack. Background A battery pack is a device that holds a battery, and is typically composed of a plurality of battery cells. The battery pack can provide a sustainable, reusable power supply, enabling modern life and industrial production to continue. As the energy density of power cells increases, the demand for heat dissipation from the cells is also increasing. In the prior art, a cooling plate structure is generally adopted to cool the battery in a liquid cooling manner. At present, in order to improve heat dissipation efficiency, a cooling plate structure is generally arranged at the top or bottom of a battery pack, so that cooling of a battery monomer is realized. The heat exchange efficiency of the cold plate in the battery pack in the prior art is lower, the temperature control and regulation effect on the battery pack is poor, and the safety performance and the service life of the battery are affected. Disclosure of utility model In view of the above, the utility model provides a battery pack, which improves the heat exchange efficiency of a cold plate, has better temperature control and regulation effects on a battery pack, improves the safety performance of the battery, and prolongs the service life of the battery. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a battery package, includes the box, be provided with the group battery in the box, the group battery includes a plurality of battery monomer of arranging along first direction, the battery monomer has first face, be provided with the naked district on the first face, the upper portion in naked district is provided with the heat transfer board, go up the heat transfer board through naked district with the contact of battery monomer's metal surface, go up the heat transfer board and extend the setting along first direction. According to the technical scheme, the battery pack provided by the utility model has the advantages that the battery monomer comprises the battery shell and the cover plate, the cover plate is connected to the top end opening of the battery shell, and the cover plate is provided with the insulating plate for insulation. The first face is the setting face of insulation board, and the battery is single the apron is the metal material, promptly the upper surface of apron is the metal surface, is provided with the naked district on the insulation board, and the upper portion of naked district is provided with the heat transfer board, go up the heat transfer board through naked district with the upper surface contact of apron, go up the heat transfer board and extend along first direction setting, first direction is single direction of arranging of battery. Through set up the naked district on the free insulation board of battery for the subregion of apron is direct with last heat exchanger plate contact, because the apron is the metal material, the heat conduction efficiency of metal is high, and transfer the heat on going up the heat exchanger plate and do not pass through the insulation board, go up the position direct contact that the naked district corresponds on heat exchanger plate and the apron, the free heat of battery can be fast through the metal face conduction that exposes in naked district position to last heat exchanger plate, realize the free cooling of battery, improved the heat exchange efficiency of cold plate greatly, it is better to the temperature regulation effect of controlling of group battery, the security performance of battery has been improved, the life of battery has been prolonged. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic view of a structure of an angle at which an upper heat exchange plate and a lower heat exchange plate are mounted on a box body according to an embodiment of the present utility model; FIG. 2 is a schematic view of another angle of mounting an upper heat exchange plate and a lower heat exchange plate on a box according to an embodiment of the present utility model; Fig. 3 is a schematic structural view of a battery pack according to an embodiment of the present utility model; Fig. 4 is a schematic diagram of the upper surface structure of a battery cell according to an embodiment of the utility model; FIG. 5 is a schematic view illustrating a structure of an angle of an upper heat exchange plate according to an embodiment