Battery lower casing and battery system
AssigneesJiangsu Contemporary Amperex Technology Limited, Contemporary Amperex Technology Co., Limited
InventorsYuchao Chen, Xiaoshan Dai
Life of this patent
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Abstract
The disclosure relates to a battery lower casing and a battery system. The battery lower casing comprises: a support frame comprising a plurality of fixing beams that are connected end to end to form an accommodating space, wherein each of two fixing beams opposite to each other comprises a fixing portion extending toward the accommodating space, each of the fixing beams comprises fixing tabs at a side of the fixing beam away from the accommodating space, and the battery lower casing is connected to a target object through the fixing tabs; and a bottom plate connected to the fixing beams.
Claims14
A battery lower casing comprising:
- a support frame comprising a plurality of fixing beams that are connected end to end to form an accommodating space, wherein each of two fixing beams opposite to each other comprises a fixing portion extending toward the accommodating space, each of the fixing beams comprises fixing tabs at a side of the fixing beam away from the accommodating space, and the battery lower casing is connected to a target object through the fixing tabs;
- and
- a bottom plate connected to the fixing beams, wherein a side of the bottom plate of the battery lower casing facing the accommodating space is lower than a surface of the fixing portion carrying weight;
- wherein the support frame further comprises a reinforcing beam disposed in the accommodating space, the reinforcing beam comprises a plurality of fixing rods, and the battery lower casing is also connected to the target object through the fixing rods;
- wherein the reinforcing beam comprises a supporting portion and a hanging portion which are disposed to intersect with each other, and the fixing rod is disposed to pass through the supporting portion and the hanging portion;
- the fixing rod comprises a shoulder portion around its periphery at an end away from the supporting portion;
- the shoulder portion comprises a recess for accommodating a sealing member.
A battery system, comprising:
- a battery lower casing comprising:
- a support frame comprising a plurality of fixing beams that are connected end to end to form an accommodating space, wherein each of two fixing beams opposite to each other comprises a fixing portion extending toward the accommodating space, each of the fixing beams comprises fixing tabs at a side of the fixing beam away from the accommodating space, and the battery lower casing is connected to a target object through the fixing tabs;
- and
- a bottom plate connected to the fixing beams, wherein a side of the bottom plate of the battery lower casing facing the accommodating space is lower than a surface of the fixing portion carrying weight;
- a cover for covering the battery lower casing and forming an accommodating chamber with the accommodating space;
- and
- a plurality of battery modules housed in the accommodating chamber, wherein the battery module comprises a plurality of cells and a frame for fixing the cells, the frame comprises a plurality of positioning posts, and the frame is connected to the fixing portion of the battery lower casing through the positioning posts;
- wherein the support frame further comprises a reinforcing beam disposed in the accommodating space, the reinforcing beam comprises a plurality of fixing rods, and the battery lower casing is also connected to the target object through the fixing rods;
- the reinforcing beam comprises a supporting portion and a hanging portion which are disposed to intersect with each other, and the fixing rod is disposed to pass through the supporting portion and the hanging portion;
- the fixing rod comprises a shoulder portion around its periphery at an end away from the supporting portion, the shoulder portion comprises a recess for accommodating a sealing member.
Dependencies are inferred from the claim text.