BATTERY CASE LID AND METHOD FOR FORMING EXPLOSION-PROOF VALVE OF BATTERY CASE LID

BATTERY CASE LID AND METHOD FOR FORMING EXPLOSION-PROOF VALVE OF BATTERY CASE LID

PROBLEM TO BE SOLVED: To provide a battery case lid having an explosion-proof mechanism to be surely cleaved, capable of accurately processing a thin recessed groove for rupture of a lid made of an aluminum alloy, and also to provide a method for forming an explosion-proof valve of the battery case...

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1. Verfasser: KONISHI HARUYUKI
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator KONISHI HARUYUKI
description PROBLEM TO BE SOLVED: To provide a battery case lid having an explosion-proof mechanism to be surely cleaved, capable of accurately processing a thin recessed groove for rupture of a lid made of an aluminum alloy, and also to provide a method for forming an explosion-proof valve of the battery case lid.SOLUTION: When a thinner recessed groove 4 for rupture is provided to a thin flat recess 3 by coining processing as an explosion-proof valve 2 of a battery case lid made of an aluminum alloy, a recessed groove 5 for assisting molding of the recessed 4 for rupture, which is thicker than the recessed groove 4 for rupture but thinner than the flat recess 3, is further provided after being simultaneously processed by coining.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title BATTERY CASE LID AND METHOD FOR FORMING EXPLOSION-PROOF VALVE OF BATTERY CASE LID
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