电池包

Abstract

本实用新型涉及电池技术领域，公开一种电池包。其中电池包包括箱体，其内设置有容置空间，箱体的底部设置有底板组件，底板组件包括上底板和下底板，上底板上设置有沿第一方向延伸的排气孔；下底板设置于上底板的下方，下底板和上底板之间形成有排气空间，排气空间与排气孔连通；底板组件还包括加强件，加强件设置于排气空间，加强件设置有固定部和连接部，固定部与下底板连接，连接部朝向上底板，并与上底板之间围设成第一贯通槽，第一贯通槽沿第一方向的两端均排气空间连通。本实用新型的电池包结构强度更高，且排气效果更好。电池包的可靠性和安全性更高。

Claims

1. A battery pack, characterized by, include: A housing (1) is provided with an accommodating space. A bottom plate assembly is provided at the bottom of the housing (1). The bottom plate assembly includes an upper bottom plate (100) and a lower bottom plate (200). An exhaust hole (110) extending in a first direction is provided on the upper bottom plate (100). The lower bottom plate (200) is located below the upper bottom plate (100). An exhaust space (201) is formed between the lower bottom plate (200) and the upper bottom plate (100). The exhaust space (201) communicates with the exhaust hole (110). The base plate assembly further includes a reinforcing member (300), which is disposed in the exhaust space (201). The reinforcing member (300) is provided with a fixing part (320) and a connecting part (310). The fixing part (320) is connected to the lower base plate (200), and the connecting part (310) faces the upper base plate (100) and forms a first through groove (301) between the connecting part (310) and the upper base plate (100). Both ends of the first through groove (301) along the first direction are connected to the exhaust space (201).

2. The battery pack of claim 1, wherein, The projection of the reinforcing member (300) onto the lower base plate (200) does not overlap with the projection of the vent (110) onto the lower base plate (200).

3. The battery pack of claim 2, wherein, The distance between the projection of the reinforcing member (300) on the lower base plate (200) and the projection of the exhaust hole (110) on the lower base plate (200) is less than 30mm.

4. The battery pack of claim 1, wherein, The projection of the reinforcing member (300) onto the lower base plate (200) overlaps with the projection of the vent (110) onto the lower base plate (200).

5. The battery pack of claim 4, wherein, The overlap length of the projection of the reinforcing member (300) on the lower base plate (200) and the projection of the exhaust hole (110) on the lower base plate (200) in the first direction is less than one-third of the length of the exhaust hole (110) along the first direction.

6. The battery pack according to claim 1, characterized in that, The connecting part (310) abuts, is bonded or welded to the upper base plate (100).

7. The battery pack of claim 6, wherein, A second through groove (302) is provided between the connecting part (310) and the lower base plate (200), and both ends of the second through groove (302) along the first direction are connected to the exhaust space (201).

8. The battery pack of claim 7, wherein, The second through groove (302) is directly opposite the exhaust hole (110) along the first direction, and the width of the second through groove (302) is greater than the width of the exhaust hole (110).

9. The battery pack of claim 1, wherein, The connecting part (310) is spaced apart from the upper base plate (100), and the distance between them is less than 2mm.

10. The battery pack of claim 1, wherein, A connecting support (330) is provided between the connecting part (310) and the fixing part (320), and the connecting support (330) is inclined.

11. The battery pack of claim 1, wherein, The exhaust holes (110) are provided at intervals along the second direction. The reinforcing member (300) extends along the second direction. The end of the reinforcing member (300) on the projection of the lower base plate (200) is located inside the projection of the outermost exhaust hole (110) on the lower base plate (200), and the distance between the outermost exhaust hole (110) and the outermost edge of the outermost exhaust hole (110) is less than 20mm.

12. The battery pack of claim 1, wherein, The vent (110) is provided with the reinforcing member (300) at both ends along the first direction.

13. The battery pack of claim 1, wherein, The width of the reinforcing member (300) along the first direction is not less than 5 mm.

14. The battery pack of claim 1, wherein, A vibration damping component (400) is provided between the connecting part (310) and the upper base plate (100).

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