Title of Invention

EXHAUST STRUCTURE OF STORAGE BATTERY

Abstract

An exhaust structure is provided on an upper part of a storage battery. In the structure, an exhaust chamber is formed with an inlet, through which gas generated from a cell chamber of the storage battery is introduced, a first outlet, arranged in an upper portion of the exhaust chamber and through which the gas is exhausted to an exterior of the storage battery, a second outlet, arranged in a bottom portion of the exhaust chamber and communicated with the cell chamber, side walls and a bottom wall defining the exhaust chamber. The bottom wall is slanted toward the second outlet. A plurality of plate members, which intercepts liquid contained in the gas. Each of the plate members is extended from one of the side walls such that a distal end portion faces another one of the side walls while defining a gap therebetween, and is slanted toward the second outlet so that the intercepted liquid is guided to the second outlet and returned to the cell chamber

Full Text

EXHAUST STRUCTURE OF STORAGE BATTERY BACKGROUND OF THE INVENTION This invention relates to an exhaust structure of a storage battery. In a storage battery and particularly in a lead storage battery, there are provided exhaust ports for discharging internal gas produced during the charging or discharging of the storage battery. In order, to exhaust only the produced gas while preventing a splash (due to the scattering of an electrolyte caused by vibrations during use) and the leakage of liquid drops, an introduction port for introducing the produced gas into an exhaust chamber (formed in an upper portion such as a lid of the storage battery), as well as an exhaust part for exhausting the introduced gas from the exhaust chamber, is provided in each exhaust chamber. Many splash-proof plates are provided within the exhaust chamber to form a labyrinth, and a bottom surface of the exhaust chamber is slanting toward the introduction port. Such a structure is disclosed in Japanese Utility Model Publication No. 54-131037U. In the aoove exhaust structure, since the slanting surface is provided only at the bottom surface of the exhaust chamber, although a splash and liquid drops which have entered the exhaust chamber are intercepted by the solash-proof places and are temporarily prevented from being discharged through an exhaust nozzle, the intercepted liquid is not separated from the surface of each splash-proof p ate, and remains on a lower portion of the splash-proof plate. Because of the vibration of the storage battery or others, this liquid elapses. Pressure variation means that the leak of the electrolyte in the cell chamber 5. In this embodiment, the above airtightness test can be easily performed by abutting a rubber member of a test head against portions painted with black in Fig. 5. Accordingly, it is preferable that top faces of the partition walls 17 of the exhaust passages 16 are made fiat uniformly as well as top faces of the side walls 8b and the partition wails 6 of the exhaust chambers 8, WHAT IS CLAIMED IS: 1, An Exhaust structure provided on an upper part of a storage battery, comprising an exhaust chamber, formed with; an inlet, through which gas generated from a cell chamber of the storage battery is introduced; a first outlet, arranged in an upper portion of the exhaust chamber and through which the gas is exhausted to an exterior of the storage battery; a second outlet, arranged in a bottom portion of the exhaust chamber and communicated with the cell chamber; and side walls and a bottom wall defining the exhaust chamber, the botton wall being slanted toward the second outlet; and a plurality of plate members, which intercepts liquid contained in the gas, each of the plate members being extended from one of the side walls such that a distal end portion faces another one of the side walls while defining a gap therebetween, and being slanted toward the second outlet so that the intercepted 1 quid is guided to the second outlet and returned to the cell chamber. 2. The exhaust structure as set forth in claim 1, wherein the distal end portion of each of the plate members is bent so as to be directed toward the second outlet. 3. The exhaust structure as set forth in claim 1, wherein at least one of the side wails is slanted toward the second outlet 4. The exhaust structure as set forth in claim 1. wherein one of the side walls is formed with the first outlet, and top faces of the other side walls are made flat uniformly. 5. An exhaust structure substantially as herein described with reference to the accompanying drawings.

Documents:

865-che-2003-abstract.pdf

865-che-2003-claims duplicate.pdf

865-che-2003-claims original.pdf

865-che-2003-correspondence others.pdf

865-che-2003-correspondence po.pdf

865-che-2003-description complate original.pdf

865-che-2003-description complete duplicate.pdf

865-che-2003-drawings.pdf

865-che-2003-form 1.pdf

865-che-2003-form 19.pdf

865-che-2003-form 26.pdf

865-che-2003-form 3.pdf

865-che-2003-form 5.pdf