Dust collection box and robot vacuum cleaner

1. A robot vacuum cleaner, comprising:

a robot body; and

a dust collection box arranged to the robot body, and comprising:

a box body comprising an air inlet and an air outlet;

a filter holder arranged inside the box body, wherein the filter holder comprises an opening at a side surface of the filter holder, and a dust separation structure configured to block dust, wherein the dust separation structure is located at a bottom of the filter holder and opposite to the air inlet in an air path; and

a filter arranged in the filter holder;

wherein the filter holder comprises a bottom plate and a lateral plate; the lateral plate is connected to the bottom plate and defines an accommodating space along with the bottom plate; and, wherein

the filter is at least partially located in the accommodating space;

the bottom plate comprises an inclined surface opposite to the air inlet;

the inclined surface forms the dust separation structure; and

the air inlet side of the opening faces away from the air inlet.

2. The robot vacuum cleaner according to claim 1 , wherein the dust separation structure is a bottom surface of the filter holder.

3. The robot vacuum cleaner according to claim 1 , wherein the filter comprises any one or more of a high efficiency particle air (HEPA) filter, a filter sponge, or an activated carbon filter sieve.

4. The robot vacuum cleaner according to claim 1 , wherein the filter holder comprises a support plate, the support plate is located in the accommodating space and connected to the bottom plate and the lateral plate, and the filter is supported by the support plate.

5. The robot vacuum cleaner according to claim 1 , wherein a bottom of the box body defines a dust extraction port, the dust collection box comprises a lower lid, and the lower lid is rotatably connected to the box body and used to open or close the dust extraction port.

6. The robot vacuum cleaner according to claim 5 , wherein the lower lid comprises a first lateral portion and a second lateral portion opposite to each other; and, wherein

the first lateral portion is rotatably connected with the box body; and

when the lower lid closes the dust extraction port, the second lateral portion is snap-fitted with the box body through a snap structure.

7. The robot vacuum cleaner according to claim 6 , wherein the dust collection box comprises a button, the button comprising a rotating shaft, and the button being rotatably arranged to the box body through the rotating shaft; and, wherein,

the snap structure comprises a hook formed at an end of the button and a snapping part formed at the second lateral portion; and

the button is swingable, with respect to the box body, between a first position where the hook is snap-fitted with the snapping part to make the lower lid close the dust extraction port and a second position where the hook is disengaged from the snapping part to make the lower lid open the dust extraction port.

8. A robot vacuum cleaner, comprising:

a robot body; and

a dust collection box arranged to the robot body, and comprising:

a box body comprising an air inlet, wherein a bottom of the box body defines a dust extraction port, the dust collection box comprises a lower lid, wherein the lower lid is rotatably connected to the box body and used to open or close the dust extraction port;

a filter holder arranged inside the box body, wherein

the filter holder comprises an opening at a side surface of the filter holder,

a dust separation structure configured to block dust, wherein the dust separation structure is located at a bottom of the filter holder and is opposite to the air inlet, and

a support plate, the support plate is located in the accommodating space and connected to the bottom plate and the lateral plate, and the filter is supported by the support plate; and

a filter arranged in the filter holder.