Dust compressing apparatus and method for dust collecting unit of vacuum cleaner

A dust compressing apparatus of a dust collecting unit of a vacuum cleaner, comprising:

• a dust collection container including a foreign substance storing compartment in which foreign substances are stored at a low density;
• a compression passage connecting a motor generating a negative pressure to the foreign substance storing compartment;
• and
• a compression unit compressing the foreign substances by moving a compartment plate to the foreign substance storing compartment using the negative pressure transmitted through the compression passage.

A dust compressing apparatus of a dust collecting unit of a vacuum cleaner, comprising:

• a dust collection container;
• a compartment plate dividing an inner space of the dust collection container into an upper foreign substance separating compartment and a lower foreign substance storing compartment;
• a branching unit guiding airflow, the branching unit including a motor connection passage directed to a motor generating a negative pressure, a dust collection passage directed to the foreign substance separating compartment, a compression passage directed to the foreign substance storing compartment, and a main passage defining holes that are respectively connected with the motor connection passage, the dust collection passage, and the compression passage;
• a flow passage control unit that controls opening and closing of the holes of the main passage;
• and
• a compression unit compressing foreign substances stored in the foreign substance storing compartment by moving the compartment plate to the foreign substance storing compartment using the negative pressure transmitted through the compression passage.

A dust compressing apparatus of a dust collecting unit of a vacuum cleaner, comprising:

• a dust collection container;
• a compartment plate dividing an inner space of the dust collection container into an upper foreign substance separating compartment and a lower foreign substance storing compartment;
• a discharging pipe connecting an inner space of the foreign substance storing compartment to an outside of the dust collection container;
• a branching unit guiding airflow, the branching unit including a motor connection passage directed to a motor generating a negative pressure, a dust collection passage directed to the foreign substance separating compartment, and a compression passage directed to the foreign substance storing compartment;
• a compression inducing unit that connects the discharging pipe and the compression passage;
• a flow passage control unit controlling connections between the passages of the branching unit;
• and
• a compression unit compressing foreign substances stored in the foreign substance storing compartment by moving the compartment plate to the foreign substance storing compartment using the negative pressure transmitted through the compression passage.