The invention provides a battery pack box body and a battery pack, the battery pack box body comprises a bottom plate and a surrounding frame surrounding the periphery of the bottom plate, the bottom plate and the surrounding frame form a containing space for containing a battery, a connecting beam is welded to one side, away from the containing space, of the surrounding frame, a through hole is formed in the connecting beam, the axis of the through hole is perpendicular to the bottom plate, and the axis of the through hole is perpendicular to the bottom plate. An annular gasket is attached to the surface of at least one side of the through hole, the annular gasket is provided with a center hole, the area of the center hole is smaller than that of the through hole, the annular gasket covers part of the through hole, and the length of the weld joint of the connecting beam and the enclosure frame, the length of the connecting beam and the diameter of the through hole meet the following relation: C = A/B; after the connecting beam is welded to the enclosure frame, the annular gasket is attached to the connecting beam and covers part of the through hole, and therefore the precision of the through hole relative to the connecting beam can be guaranteed by guaranteeing the precision of the center hole of the annular gasket relative to the connecting beam.
本发明提供了一种电池包箱体及电池包,其中,电池包箱体包括底板以及围设在底板四周的围框,底板和围框形成容纳电池的容纳空间,围框的远离容纳空间的一侧焊接有连接梁,连接梁上设置有通孔,通孔的轴线与底板垂直,通孔的至少一侧表面贴附有环形垫片,环形垫片具有中心孔,中心孔的面积小于通孔的面积,环形垫片遮盖部分通孔,其中,连接梁与围框的焊缝长度、连接梁的长度以及通孔的直径满足以下关系:C=A/B;将连接梁焊接在围框上后,将环形垫片贴设在连接梁上,并遮盖部分通孔,因此能够通过保证环形垫片的中心孔相对于连接梁的精度,从而保证通孔相对于连接梁的精度。
Battery pack box body and battery pack
电池包箱体及电池包
2024-11-08
Patent
Electronic Resource
Chinese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |