VACUUM CLEANER

PROBLEM TO BE SOLVED: To provide a reliable vacuum cleaner which detects abnormality of an electric blower and stops operation in all operation modes. SOLUTION: The vacuum cleaner comprises the electric blower 4 for generating suction air, a current detection means 14 for detecting current flowing t...

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Bibliographic Details
Main Authors TOKUDA TAKESHI, OSHIMA HIROO
Format Patent
LanguageEnglish
Published 26.02.2009
Subjects
COFFEE MILLS
DOMESTIC ARTICLES OR APPLIANCES
DOMESTIC WASHING OR CLEANING
FURNITURE
HUMAN NECESSITIES
SPICE MILLS
SUCTION CLEANERS IN GENERAL
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Summary:PROBLEM TO BE SOLVED: To provide a reliable vacuum cleaner which detects abnormality of an electric blower and stops operation in all operation modes. SOLUTION: The vacuum cleaner comprises the electric blower 4 for generating suction air, a current detection means 14 for detecting current flowing through the electric blower 4, a control circuit 6 for performing phase control of voltage that is applied to the electric blower 4, a dust collection chamber 3 which is arranged upstream of the electric blower 4 and which collects dust, and a memory 13 in which voltage phase angles and current values for each operation mode are pre-stored. The electric blower 4 is forcibly stopped when the current flowing through the electric blower 4 is greater than a specified current based on the current value stored in the memory 13. Thereby, the current is securely cut off when abnormality occurs in the electric blower 4. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070206554