Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Patent
1994-10-11
1995-06-13
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having specified venting, feeding or circulation structure
Venting structure
429 88, 429175, H01M 202, H01M 212
Patent
active
054241464
ABSTRACT:
A storage battery has a battery housing which includes a rectangular casing with an open top end and a plurality of cell compartments, and a cover device sealed to the open top end of the casing. The cover device includes a main cover part and a sub-cover part. The main cover part has a plate body with a top face that is formed with a plurality of adjacent rectangular chambers. Each of the chambers is aligned with a respective one of the cell compartments and is confined by first and second longitudinal walls and first and second transverse walls. Each of the chambers has a bottom formed with a vent hole, a return hole, and an upwardly projecting partition unit that confines a condensate groove in the chamber. The sub-cover part is sealed to the main cover part at top edges of the longitudinal and transverse walls and the partition unit of each of the chambers to seal a top end of the condensate groove in each of the chambers. The particular arrangement of the vent hole and the return hole, and the particular structure of the partition unit permit the formation of an air lock in each of the chambers when the storage battery has toppled to ensure that leakage of electrolyte out of the battery housing can be effectively minimized even when there are defects in the sealing of the sub-cover part to the main cover part.
REFERENCES:
patent: 4207387 (1980-06-01), Jutte
patent: 4275128 (1981-06-01), Sano
patent: 5278003 (1994-01-01), Francisco
patent: 5281492 (1994-01-01), Lin
Cheng Kwang Storage Battery Co., Ltd.
Skapars Anthony
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