Battery-powered vacuum cleaner and method of cooling battery-powered vacuum cleaner
First Claim
1. A battery-powered vacuum cleaner comprising:
- a battery pack including a plurality of secondary batteries;
a battery pack container containing the battery pack;
a motor driven for operation by power supplied by the battery pack;
a fan driven by the motor to suck air;
a dust cup for separating dust from air sucked therein by the fan and storing the dust separated from the sucked air;
a housing containing the battery pack container, the motor, the fan and the dust cup, and provided with a first suction opening through which external air is sucked;
a first airflow duct for guiding the air sucked in by the fun through the dust cup to the motor; and
a second airflow duct, for guiding air for cooling the battery pack through the battery pack, joined to the first airflow duct at a junction on an upstream side of the fan.
1 Assignment
0 Petitions
Accused Products
Abstract
A battery-powered vacuum cleaner is provided with a battery pack that generates heat and is capable of efficiently cooling the battery pack. The battery pack of the battery-powered vacuum cleaner is cooled by a vacuum cleaner cooling method. The battery-powered vacuum cleaner comprises a battery pack (3) including a plurality of secondary batteries, a battery pack container (2) containing the battery pack, a motor (7) driven for operation by power supplied by the battery pack, a fan (5) driven by the motor to suck air, a dust cup (9) for separating dust from air sucked therein by the fan and storing the dust separated from the sucked air, a housing (1) containing the battery pack container, the motor, the fan and the dust cup, and provided with a first suction opening (30) through which external air is sucked, a first airflow duct (32) for guiding the air sucked in by the fun through the dust cup to the motor, and a second airflow duct (36), for guiding air for cooling the battery pack through the battery pack, joined to the first airflow duct at a junction (34) on the upstream side of the fan.
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Citations
13 Claims
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1. A battery-powered vacuum cleaner comprising:
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a battery pack including a plurality of secondary batteries;
a battery pack container containing the battery pack;
a motor driven for operation by power supplied by the battery pack;
a fan driven by the motor to suck air;
a dust cup for separating dust from air sucked therein by the fan and storing the dust separated from the sucked air;
a housing containing the battery pack container, the motor, the fan and the dust cup, and provided with a first suction opening through which external air is sucked;
a first airflow duct for guiding the air sucked in by the fun through the dust cup to the motor; and
a second airflow duct, for guiding air for cooling the battery pack through the battery pack, joined to the first airflow duct at a junction on an upstream side of the fan. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vacuum cleaner cooling method of cooling a battery-powered vacuum cleaner, which comprises:
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a battery pack including a plurality of secondary batteries, a battery pack container containing the battery pack, a motor driven for operation by power supplied by the battery pack, a fan driven by the motor to suck external air, a dust cup for separating dust from air sucked therein by the fan and storing the dust separated from the sucked air, a housing containing the battery pack container, the motor, the fan and the dust cup, and provided with first and second suction openings through which external air is sucked, a first airflow duct for guiding the air sucked in by the fun through the dust cup to the motor, and a second airflow duct, for guiding air for cooling the battery pack through the battery pack, joined to a part, on the upstream side of the fan, of the first airflow duct;
said vacuum cleaner cooling method comprising the steps of;
sucking external air in through the first suction opening and guiding the sucked external air through the dust cup and the first airflow duct to the motor; and
sucking external air in through the second suction opening by the agency of the fan, guiding the sucked external air so as to flow through the vicinity of the battery pack to cool the battery pack, guiding the air used for cooling the battery pack through the second airflow duct to a position on the upstream side of the fan and making the air flow into the air flowing through the first airflow duct.
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Specification