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CN-224232843-U - Special-shaped battery pack

CN224232843UCN 224232843 UCN224232843 UCN 224232843UCN-224232843-U

Abstract

The utility model provides a special-shaped battery pack which is characterized by comprising a 1 st battery pack (11), a 2 nd battery pack (12) and a special-shaped insulating plate (7), wherein the 1 st battery pack (11) comprises a 1 st hard sleeve (8) and more than 2 end-to-end batteries (10) accommodated in the hard sleeve, the 2 nd battery pack (12) comprises a 2 nd hard sleeve (9) and more than 1 parallel batteries (10) accommodated in the hard sleeve, the 1 st battery pack (11) and the 2 nd battery pack (12) are aligned at one end to form an L shape, and the special-shaped insulating plate (7) is in the shape of an L-shaped plane plate and is attached to the side surfaces of the 1 st hard sleeve (8) and the 2 nd hard sleeve (9).

Inventors

  • YE BEN

Assignees

  • 松下新能源(无锡)有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (10)

  1. 1. A special-shaped battery pack (1) is characterized by comprising a 1 st battery pack (11), a 2 nd battery pack (12) and a special-shaped insulating plate (7), The 1 st battery pack (11) comprises a1 st hard sleeve (8) and more than 2 end-to-end batteries (10) accommodated in the hard sleeve; The 2 nd battery pack (12) comprises a 2 nd hard sleeve (9) and more than 1 parallel arranged batteries (10) accommodated in the hard sleeve, The 1 st battery pack (11) and the 2 nd battery pack (12) are arranged in an L shape in a manner of aligning one end, The special-shaped insulating plate (7) is L-shaped and is in a plane plate shape and is attached to the side surfaces of the 1 st hard sleeve (8) and the 2 nd hard sleeve (9).
  2. 2. The shaped battery pack according to claim 1, wherein W = 2 (d1+t1+t2) is satisfied when the overall width of the shaped battery pack is W, the battery diameter is D1, the wall thickness of the 1 st hard sleeve is t1, and the wall thickness of the 2 nd hard sleeve is t 2.
  3. 3. The shaped battery pack according to claim 1 or 2, wherein T2 is equal to or greater than T1, and T = d1+2 x T2+t3 is satisfied when the thickness of the shaped battery pack is T, the battery diameter is D1, the wall thickness of the 1 st hard sleeve is T1, the wall thickness of the 2 nd hard sleeve is T2, and the thickness of the shaped insulating plate is T3.
  4. 4. The shaped battery pack according to claim 1 or 2, comprising a square body portion (2) and an elongated extension portion (3), being integrally formed in an L-shape, A1 st heat-shrinkable sleeve (5) is covered on the lower half part of the main body part (2) and the outer surface of the extension part (3), and a 2 nd heat-shrinkable sleeve (6) is covered on the outer surface of the main body part (2).
  5. 5. The shaped battery pack according to claim 4, further comprising a wire harness (4) for electrically connecting the 1 st battery pack (11) and the 2 nd battery pack (12) to an external device, The wire bundle (4) is arranged between the 1 st hard sleeve (8) and the 2 nd hard sleeve (9) and extends out of the opening of the 1 st heat-shrinkable sleeve (5).
  6. 6. The shaped battery pack according to claim 5, wherein the wire bundle (4) further comprises a PTC thermal element (15).
  7. 7. A shaped battery pack according to claim 3, wherein the shaped insulating plate (7) comprises a1 st part (7 a) attached to a side face of the 1 st hard sleeve (8), and a 2 nd part (7 b) attached to a side face of the 2 nd hard sleeve (9) and covering between the 1 st hard sleeve (8) and the 2 nd hard sleeve (9), the thickness of the 1 st part (7 a) being greater than or equal to the thickness of the 2 nd part (7 b).
  8. 8. The shaped battery pack according to claim 1 or 2, characterized in that the shaped insulating plate (7) is a PC insulating plate, a PET insulating plate, or a synthetic paper insulating plate with a low moisture absorption rate.
  9. 9. The shaped battery pack according to claim 1 or 2, characterized in that the 1 st hard sleeve (8) and the 2 nd hard sleeve (9) are hard PI sleeves.
  10. 10. The shaped battery pack according to claim 9, wherein the battery (10) is a cylindrical nickel-hydrogen secondary battery or a lithium secondary battery.

Description

Special-shaped battery pack Technical Field The utility model relates to a special-shaped battery pack. Background The special-shaped battery pack is generally used in communication equipment of a vehicle, and is limited by space, the battery compartment of the communication equipment is usually designed into different shapes, and the battery pack which is customized and designed into proper dimensional tolerance is required for special-shaped structures such as steps, trapezoids and the like, but even the battery packs with the same shape are not completely identical in the dimensional and tolerance requirements. Therefore, the prior art has the following problems that firstly, the battery packs with different shapes cannot meet the changeable design requirements of the battery compartment of the vehicle, and secondly, when the size of the battery compartment of the vehicle is adjusted and optimized, the battery packs need to enter the development period again, and the original requirements of the structural size and the like of the battery packs may not meet the requirements of the new battery compartment. In addition, the heat shrinkage bush plays an important role as a protective component of the shaped battery pack. The heat-shrinkable sleeve has good insulating property, can effectively prevent internal short circuit of the battery pack, and ensures safe operation of the battery pack. However, due to the complex and various shapes of the special-shaped battery packs, the traditional heat-shrinkable sleeve is difficult to be tightly attached in the heat shrinkage process, so that the dimensional accuracy of the battery packs is difficult to be ensured. This not only affects the protection effect of the heat shrink on the battery pack, but may also cause a series of safety hazards, such as overheating of the battery, ignition, etc. Therefore, the dimensional accuracy of the battery pack after thermal shrinkage is improved, and the method has important significance for guaranteeing the performance and safety of the battery. Disclosure of utility model The present utility model has been made in view of the above problems, and an object of the present utility model is to provide a shaped battery pack which can accommodate battery compartments of different shapes and sizes, and which has excellent dimensional accuracy after heat shrinkage, ensuring reliable battery performance. The utility model relates to a special-shaped battery pack (1), which is characterized by comprising a1 st battery pack (11), a2 nd battery pack (12) and a special-shaped insulating plate (7), The 1 st battery pack (11) comprises a1 st hard sleeve (8) and more than 2 end-to-end batteries (10) accommodated in the hard sleeve; The 2 nd battery pack (12) comprises a 2 nd hard sleeve (9) and more than 1 parallel arranged batteries (10) accommodated in the hard sleeve, The 1 st battery pack (11) and the 2 nd battery pack (12) are arranged in an L shape in a manner of aligning one end, The special-shaped insulating plate (7) is L-shaped and is in a plane plate shape and is attached to the side surfaces of the 1 st hard sleeve (8) and the 2 nd hard sleeve (9). Preferably, when the overall width of the shaped battery pack is set to W, the battery diameter is set to D1, the wall thickness of the 1 st hard sleeve is set to t1, and the wall thickness of the 2 nd hard sleeve is set to t2, w=2 (d1+t1+t2) is satisfied. Preferably, when the thickness of the special-shaped battery pack is set to be T, the battery diameter is set to be D1, the thickness of the wall of the 1 st hard sleeve is set to be T1, the thickness of the wall of the 2 nd hard sleeve is set to be T2, and the thickness of the special-shaped insulating plate is set to be T3, T2 is greater than or equal to T1, and t=d1+2×t2+t3 is satisfied. Preferably, the special-shaped battery pack (1) comprises a square main body part (2) and an elongated extension part (3), the whole structure is L-shaped, the outer surface of the main body part (2) is covered with a 2 nd heat-shrinkable sleeve (6), and the lower half part of the main body part (2) and the outer surface of the extension part (3) are covered with a 1 st heat-shrinkable sleeve (5). Preferably, the special-shaped battery pack (1) further comprises a wire bundle (4) for electrically connecting the 1 st battery pack (11) and the 2 nd battery pack (12) with an external device, and the wire bundle (4) is arranged between the 1 st hard sleeve (8) and the 2 nd hard sleeve (9) and extends out from the opening of the 1 st heat shrinkage sleeve (5). Preferably, the wire bundle (4) further comprises a PTC thermosensitive element (15). Preferably, the special-shaped insulating plate (7) comprises a 1 st part (7 a) attached to the side surface of the 1 st hard sleeve (8), and a 2 nd part (7 b) attached to the side surface of the 2 nd hard sleeve (9) and covering the space between the 1 st hard sleeve (8) and the 2 nd hard sleeve (9), wherein t