CN-224217621-U - Battery pack and electricity utilization device

Abstract

The application discloses a battery pack and an electric device, wherein the battery pack has a first direction and a second direction which are vertical, the battery pack comprises a box body, a plurality of battery packs, at least one side plate and a first adhesive layer, the box body comprises a bottom plate and a cross beam, the bottom plate is connected with the cross beam to form a containing cavity for containing the battery packs, the side plate is arranged between two adjacent battery packs, one end, close to the cross beam, of the side plate along the first direction is respectively connected with the bottom plate and the two battery packs in a sealing mode, an adhesive containing space is formed by enclosing at least one side plate, the plurality of battery packs, the bottom plate and the cross beam, and the first adhesive layer is filled in the adhesive containing space and is respectively connected with one side, facing the cross beam, of the battery packs, the cross beam and the bottom plate in a sealing mode. According to the application, one end of the side plate, which is close to the cross beam, is respectively connected with one end of the two adjacent battery packs, which is close to the cross beam, in a sealing way, so that the first adhesive layer can be prevented from entering between the two adjacent battery packs, and the insulating film of the battery cell is prevented from being punctured, thereby effectively improving the safety of the battery pack.

Inventors

• GUO YANCHAO
• LIU SHUBAO

Assignees

• 欣旺达动力科技股份有限公司

Dates

Publication Date

20260508

Application Date

20250521

Claims (10)

1. 1. A battery pack having first and second perpendicular directions, comprising: the box body comprises a bottom plate and a cross beam, and the bottom plate is connected with the cross beam to enclose a containing cavity; The battery packs are arranged in the accommodating cavity along the second direction, and are arranged at intervals from the cross beam along the first direction; The side plates are arranged between two adjacent battery packs, and one end, close to the cross beam, of each side plate is respectively connected with the bottom plate and the two battery packs adjacent to the side plates in a sealing manner along the first direction; The first adhesive layer is filled in the adhesive containing space and is respectively in sealing connection with one side of the side plate, which faces the cross beam, one side of the battery pack, which faces the cross beam, the cross beam and the bottom plate.
2. 2. The battery pack according to claim 1, wherein the side plate includes: The plate body is arranged between two adjacent battery packs and is respectively connected with the two adjacent battery packs and the first adhesive layer in a sealing way; The plurality of first glue blocking structures are arranged at intervals along the first direction and are respectively connected with the plate body, wherein the two first glue blocking structures are respectively arranged at two ends of the plate body along the first direction and are respectively connected with the two adjacent battery packs, the bottom plate and the first glue layer in a sealing mode.
3. 3. The battery pack of claim 2, wherein the battery pack has a third direction perpendicular to the first and second directions, respectively, along which the first glue barrier structure has a size greater than the size of the first glue layer.
4. 4. The battery pack of claim 3, wherein the battery pack comprises a plurality of battery cells, The adjacent two battery packs comprise a first battery pack and a second battery pack, and the plate body is positioned between the first battery pack and the second battery pack; The first glue blocking structure comprises: the first sealing piece is arranged between the plate body and the first battery pack and is respectively connected with the first adhesive layer, the bottom plate, the plate body and the first battery pack in a sealing way; the second sealing piece is arranged between the plate body and the second battery pack and is respectively in sealing connection with the first adhesive layer, the bottom plate, the plate body and the second battery pack; The size of the first sealing element and the size of the second sealing element are larger than the size of the plate body along the third direction, and the part of the first sealing element, which exceeds the plate body, is in sealing connection with the part of the second sealing element, which exceeds the plate body, along the third direction.
5. 5. The battery pack of claim 4, wherein the battery pack comprises a plurality of battery cells, The side plate further includes: the second glue blocking structure is arranged between the first sealing pieces of the two adjacent first glue blocking structures along the first direction, and the second glue blocking structure, the two adjacent first sealing pieces and the plate body form a first glue storage cavity in a surrounding mode; The third glue blocking structure is arranged on one side of the plate body, facing the second battery pack, and is in sealing connection with the plate body and the second battery pack, along the first direction, the third glue blocking structure is arranged between the second sealing pieces of the adjacent two first glue blocking structures, and the second glue storage cavity is formed by the third glue blocking structure, the adjacent two second sealing pieces and the plate body in a surrounding mode; The battery pack further includes: The second adhesive layer is arranged in the first adhesive storage cavity and is respectively connected with the plate body and the first battery pack; And the third adhesive layer is arranged in the second adhesive storage cavity and is respectively connected with the plate body and the second battery pack.
6. 6. The battery pack of claim 5, wherein the battery pack comprises a plurality of battery cells, The second glue blocking structure comprises a third sealing element and a fourth sealing element which are arranged at intervals along the third direction, wherein the third sealing element and the fourth sealing element are respectively arranged on one side of the plate body, which faces the first battery pack, and are respectively in sealing connection with the plate body and the first battery pack, the third sealing element, the fourth sealing element, two adjacent first sealing elements and the plate body enclose the first glue storage cavity, and/or, The third glue blocking structure comprises a fifth sealing element and a sixth sealing element which are arranged at intervals along the third direction, wherein the fifth sealing element and the sixth sealing element are arranged on one side of the plate body, which faces the second battery pack, and are respectively in sealing connection with the side plate and the second battery pack, and the second glue storage cavity is defined by the fifth sealing element, the sixth sealing element, the two second sealing elements and the plate body.
7. 7. The battery pack of claim 6, wherein the first, second, third, fourth, fifth, and sixth seals are all elastic members, the first, third, fourth seals are adhesively connected to the plate and the first battery pack, and the second, fifth, and sixth seals are adhesively connected to the plate and the second battery pack.
8. 8. The battery pack of claim 7, wherein the battery pack comprises a plurality of battery cells, Along the first direction; the third sealing piece is arranged at intervals with the adjacent two first sealing pieces to form a first exhaust port; the fourth sealing piece is arranged at intervals with the adjacent two first sealing pieces to form a second exhaust port; The fifth sealing element is arranged at intervals with the two adjacent second sealing elements to form a third exhaust port; The sixth sealing piece is arranged at intervals with the adjacent two second sealing pieces to form a fourth exhaust port; The first air outlet and the second air outlet are communicated with the first glue storage cavity, and the third air outlet and the fourth air outlet are communicated with the second glue storage cavity.
9. 9. The battery pack of claim 8, wherein the side plate further comprises: The first limiting piece is at least partially arranged in the first glue storage cavity and connected with the plate body, and the size of the first sealing piece, the size of the third sealing piece and the size of the fourth sealing piece are larger than the size of the first limiting piece along the second direction; the second limiting piece is at least partially arranged in the second glue storage cavity and connected with the plate body, and the size of the second sealing piece, the size of the fifth sealing piece and the size of the sixth sealing piece are larger than the size of the second limiting piece along the second direction.
10. 10. An electrical device comprising a battery pack according to any one of claims 1-9.

Description

Battery pack and electricity utilization device Technical Field The application belongs to the technical field of batteries, and particularly relates to a battery pack and an electric device. Background The battery pack is generally stacked with a plurality of battery cells, and the battery cells are fixed into a battery pack through a plurality of insulating plates, so that the stability of fixing the battery cells in the battery pack is maintained. And then further fixing and sealing are realized by a pouring sealant process in the battery pack. However, due to gaps among the battery monomers, the pouring sealant is easy to leak in the filling process, so that the sealing performance of the battery pack is affected, and potential threat to the safety of the battery monomers is also possible. Disclosure of utility model The embodiment of the utility model provides a battery pack, which aims to solve the problem that glue leakage is easy to occur in the filling process of the traditional battery pack pouring sealant, and the other aim of the embodiment of the utility model is to provide an electric device. The battery pack provided by the embodiment of the application has a first direction and a second direction which are vertical, and comprises: the box body comprises a bottom plate and a cross beam, and the bottom plate is connected with the cross beam to enclose a containing cavity; The battery packs are arranged in the accommodating cavity along the second direction, and are arranged at intervals from the cross beam along the first direction; The side plates are arranged between two adjacent battery packs, and one end, close to the cross beam, of each side plate is respectively connected with the bottom plate and the two battery packs adjacent to the side plates in a sealing manner along the first direction; The first adhesive layer is filled in the adhesive containing space and is respectively in sealing connection with one side of the side plate, which faces the cross beam, one side of the battery pack, which faces the cross beam, the cross beam and the bottom plate. In some embodiments, the side panel comprises: The plate body is arranged between two adjacent battery packs and is respectively connected with the two adjacent battery packs and the first adhesive layer in a sealing way; The plurality of first glue blocking structures are arranged at intervals along the first direction and are respectively connected with the plate body, wherein the two first glue blocking structures are respectively arranged at two ends of the plate body along the first direction and are respectively connected with the two adjacent battery packs, the bottom plate and the first glue layer in a sealing mode. In some embodiments, the battery pack has a third direction perpendicular to the first direction and the second direction, respectively, along which the first glue blocking structure has a size greater than the size of the first glue layer. In some embodiments of the present invention, in some embodiments, The adjacent two battery packs comprise a first battery pack and a second battery pack, and the plate body is positioned between the first battery pack and the second battery pack; The first glue blocking structure comprises: the first sealing piece is arranged between the plate body and the first battery pack and is respectively connected with the first adhesive layer, the bottom plate, the plate body and the first battery pack in a sealing way; the second sealing piece is arranged between the plate body and the second battery pack and is respectively in sealing connection with the first adhesive layer, the bottom plate, the plate body and the second battery pack; The size of the first sealing element and the size of the second sealing element are larger than the size of the plate body along the third direction, and the part of the first sealing element, which exceeds the plate body, is in sealing connection with the part of the second sealing element, which exceeds the plate body, along the third direction. In some embodiments of the present invention, in some embodiments, The side plate further includes: the second glue blocking structure is arranged between the first sealing pieces of the two adjacent first glue blocking structures along the first direction, and the second glue blocking structure, the two adjacent first sealing pieces and the plate body form a first glue storage cavity in a surrounding mode; The third glue blocking structure is arranged on one side of the plate body, facing the second battery pack, and is in sealing connection with the plate body and the second battery pack, along the first direction, the third glue blocking structure is arranged between the second sealing pieces of the adjacent two first glue blocking structures, and the second glue storage cavity is formed by the third glue blocking structure, the adjacent two second sealing pieces and the plate body in a surrounding mode; The