Dust collector, vacuum cleaner, and self-propelled vacuum cleaner

A vacuum cleaner comprising:

• a dust collector including a filter and a housing that houses the filter;
• and
• a blower that is connected to the exhaust portion and generates a flow of air from the intake portion toward the exhaust portion through the filter in the dust collector;
• wherein
• the housing includes an intake portion, and an exhaust portion that is fluidly connected to the intake portion via the filter inside the housing;
• an intake side surface on an intake portion side of the filter expands in a first direction that is perpendicular or substantially perpendicular to a direction from a top surface to a bottom surface among inner surfaces of the housing, and extends in a direction including at least a component of a second direction that is parallel or substantially parallel to the direction from the to surface to the bottom surface among the inner surfaces of the housing;
• the housing includes a wall that defines an intake passage extending from the intake portion side toward a filter side;
• one end of the intake passage is linked to outside of the housing via the intake portion;
• another end of the intake passage opposes a top surface side region of the intake side surface of the filter in a third direction perpendicular or substantially perpendicular to the first direction and the second direction;
• and
• when viewed from the first direction, the filter ends towards the intake passage in the third direction such that the top surface side region of the intake side surface approaches the another end of the intake passage and a total distance between opposing portions of the filter and the surface of the housing in the second direction continuously decreases as the filter extends towards the intake passage in the third direction.

A self-propelled vacuum cleaner comprising:

• a dust collector including a filter and a housing that houses the filter;
• and
• a blower that is connected to the exhaust portion and generates a flow of air from the intake portion toward the exhaust portion through the filter in the dust collector;
• wherein
• the housing includes an intake portion and an exhaust portion that is fluidly connected to the intake portion via the filter the housing;
• an intake side surface on an intake portion side of the filter expands in a first direction that is perpendicular or substantially perpendicular to a direction from a top surface to a bottom surface among inner surfaces of the housing and extends in a direction including at least a component of a second direction that is parallel or substantially parallel to the direction from the top surface to the bottom surface among the inner surfaces of the housing;
• the housing includes a wall that defines an intake passage extending from the intake portion side toward a filter side;
• one end of the intake passage is linked to outside of the housing via the intake portion;
• another end of the intake passage opposes a top surface region of the intake side surface of the filter in a third direction perpendicular or substantially perpendicular to the first direction and the second direction;
• when viewed from the first direction, the filter extends towards the intake passage in the third direction such that the top surface side region of the intake side surface approaches the another end of the intake passage and a total distance between opposing portions of the filter and the top surface of the housing, in the second direction continuously decreases as the filter extends towards the intake passage in the third direction;
• and
• the self-propelled vacuum cleaner is capable of performing self-propelled cleaning on a surface to be cleaned.