Vacuum cleaner
First Claim
1. A vacuum cleaner comprising:
- a body defining an outer appearance thereof;
a blower fan unit comprising a blower fan and a motor to generate a suction force in the body;
an inner case surrounding the blower fan unit and comprising an inner flow path formed therein;
an outer case surrounding the inner case; and
a discharge flow path formed between the inner case and the outer case to communicate with the inner flow path,wherein the discharge flow path comprises;
a circulation flow path branched from the inner flow path to guide circulation of air discharged from the blower fan unit, anda bent flow path branched from the inner flow path to guide the air discharged from the blower fan unit in a direction substantially perpendicular to a direction of air circulated through the circulation flow path such that the air is bent a number of times in the bent flow path, andwherein the inner case includes a lower case to support a lower portion of the blower fan unit, and an upper case coupled to the lower case, the upper case including a cylindrical part having a same radius as that of the lower case, and an extended part extending from the cylindrical part and having a larger radius than that of the cylindrical part, the circulation flow path and the bent flow path being branched from an inner side of the extended part and being joined with each other at an outer side of the cylindrical part.
1 Assignment
0 Petitions
Accused Products
Abstract
A vacuum cleaner having a discharge flow path, which reduces noise generated due to resistance of the flow path, and by a motor. The vacuum cleaner includes a body, a blower fan unit including a blower fan and a motor to generate suction force in the body, an inner case surrounding the blower fan unit and having an inner flow path formed therein, an outer case surrounding the inner case, and a discharge flow path formed between the inner case and the outer case to communicate with the inner flow path. The discharge flow path including a circulation flow path branched from the inner flow path to guide air discharged from the blower fan unit, and a bent flow path branched from the inner flow path to guide the air discharged from the blower fan unit, the air is thereby bent a number of times in the bent flow path.
15 Citations
18 Claims
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1. A vacuum cleaner comprising:
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a body defining an outer appearance thereof; a blower fan unit comprising a blower fan and a motor to generate a suction force in the body; an inner case surrounding the blower fan unit and comprising an inner flow path formed therein; an outer case surrounding the inner case; and a discharge flow path formed between the inner case and the outer case to communicate with the inner flow path, wherein the discharge flow path comprises; a circulation flow path branched from the inner flow path to guide circulation of air discharged from the blower fan unit, and a bent flow path branched from the inner flow path to guide the air discharged from the blower fan unit in a direction substantially perpendicular to a direction of air circulated through the circulation flow path such that the air is bent a number of times in the bent flow path, and wherein the inner case includes a lower case to support a lower portion of the blower fan unit, and an upper case coupled to the lower case, the upper case including a cylindrical part having a same radius as that of the lower case, and an extended part extending from the cylindrical part and having a larger radius than that of the cylindrical part, the circulation flow path and the bent flow path being branched from an inner side of the extended part and being joined with each other at an outer side of the cylindrical part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vacuum cleaner including a body, comprising:
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a blower fan unit comprising a blower fan and a motor to generate a suction force in the vacuum cleaner; an inner case which surrounds the blower fan unit and comprises an inner flow path defined between the inner case and the motor, to circulate air discharged radially from the blower fan unit; and an outer case which surrounds the inner case and is housed within the body of the vacuum cleaner, wherein a discharge flow path is formed between the inner case and the outer case, to discharge air to an outside of the vacuum cleaner, and wherein the discharge flow path includes a circulation flow path and a bent flow path which are branched from the inner flow path, one portion of air being guided to the circulation flow path from the inner flow path to flow circularly, the other portion of the air being guided to the bent flow path from the inner flow path in a direction substantially perpendicular to a direction of air circulated through the circulation flow path to flow in a repeatedly bent manner in the bent flow path and then joining the one portion of air guided to the circulation flow path before being discharged from the outer case. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification