Portable dust collector with inner and outer air ducts

Abstract

The invention relates to the technical field of portable dust collectors, in particular to a portable dust collector with an inner air duct and an outer air duct. The handy dust collector with the inner air duct and the outer air duct is of a cylinder structure and comprises a dust collection cup and a cylinder body which are detachably connected. A dust suction port is formed in the end, away from the cylinder body, of the dust collection cup, a filtering assembly is detachably arranged in the dust collection cup, a motor and a battery assembly are detachably arranged in the cylinder body inthe airflow flowing direction in sequence, and an air outlet is formed in the end, away from the dust collection cup, of the cylinder body. The battery assembly comprises a battery support with a triangular cross section and a battery pack, and the outer air duct is formed between the battery support and the inner wall of the cylinder body. The battery pack comprises three batteries which are arranged at three vertex angles of the triangular structure of the battery support respectively, and the inner air duct is formed in the internal space of the battery pack. Due to the arrangement of the inner air outlet channel and the outer air outlet channel, the air outlet area is enlarged, the air outlet amount and the air outlet efficiency are increased, the suction force and the dust collectionefficiency of the portable dust collector are improved, the heat dissipation of the motor and the batteries is facilitated, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to the technical field of portable vacuum cleaners, in particular to a portable vacuum cleaner with internal and external air ducts. Background technique [0002] The portable vacuum cleaner is a small vacuum cleaner that is dual-purpose for the family and the car. It meets people's needs for vacuuming in any scenes that are not convenient for cleaning and dust removal, such as narrow gaps in the car, desktops and keyboards. It is compact and easy to carry and store. The working principle of the portable vacuum cleaner is: the motor works, so that the air in the cylinder is discharged from the air outlet at high speed, and the cylinder and the dust collection chamber form an instant vacuum, that is, the cylinder and the outside atmosphere form a high negative pressure difference, forcing dust and other particles to be carried. The airflow of dust-like dirt enters the cylinder through the dust collection chamber, and after being fi...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a portable vacuum cleaner with internal and external air ducts, which solves the technical problems of low suction and short service life of the existing portable vacuum cleaners

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