Dust-collecting device

1. A dust-collecting device, comprising:

a first suction port which communicates with a dust-collecting part of a vacuum cleaner and sucks dust and dirt from the dust-collecting part;

a second suction port which is arranged at a different position from a position of the first suction port and is open to outside air to suck dust and dirt together with the outside air;

a suction part which is connected selectively to one of the first suction port and the second suction port and which is driven to suck dust and dirt through the one of the first suction port and the second suction port; and

a controller configured to control operation of the suction part and determine which of the first and second suction ports is connected to the suction part, wherein

when determining a first state in which the first suction port is connected to the suction part, the controller is configured to drive the suction part and automatically stop the suction part after determining an elapsing of a first specified period of time, and

when determining a second state in which the second suction port is connected to the suction part, the controller is configured to drive the suction part, and enable stopping of the suction part through an operation for stopping the suction part and stop the suction part automatically when the suction part is not stopped, after determining an elapsing of a second specified period of time in a state in which the suction part is driven, the second specified period of time being different from the first specified period of time.

2. The dust-collecting device according to claim 1 , further comprising:

a lamp, which changes an indication state when the second suction port is connected to the suction part and the controller continues the driving of the suction part for a specified period of time.

3. The dust-collecting device according to claim 2 , wherein

the indication state of the lamp is different between a first case in which power is applied in the first state in which the first suction port is connected to the suction part and a second case in which power is applied in the second state in which the second suction port is connected to the suction part.

4. The dust-collecting device according to claim 2 , wherein

the lamp ( 1 ) is in an off-state when power is not applied; ( 2 ) is in a flickering-state when power is applied in the second state in which the second suction port is connected to the suction part and when the second suction port is connected to the suction part and the controller continues driving the suction part for the specified period of time; and ( 3 ) is in an on-state in other cases.

5. The dust-collecting device according to claim 2 , wherein

the lamp ( 1 ) is in an off-state when power is not applied; ( 2 ) while in the state where power is applied, the lamp is in an on-state when the first suction port is connected to the suction part; and ( 3 ) is in a flickering-state when the second suction port is connected to the suction part.

6. The dust-collecting device according to claim 1 , wherein

the first suction port is a suction port through which the dust and the dirt is sucked from a dust-collecting part of the vacuum cleaner, and

the controller is further configured to, automatically start driving of the suction part when the vacuum cleaner is connected to the first suction port in the first state in which the first suction port is connected to the suction part.

7. The dust-collecting device according to claim 6 , wherein in the controller, the first specified period of time is set shorter than the second specified period of time.

8. The dust-collecting device of claim 1 , wherein the controller is further configured to:

when determining that the suction part is connected in the first state, increment a first counter until the first counter reaches a first threshold corresponding to the first specified period of time; and

when determining that the suction part is connected in the second state, increment a second counter until the second counter reaches a second threshold corresponding to the second specified period of time.

9. A control method for a dust-collecting device including a first suction port which communicates with a dust-collecting part of a vacuum cleaner and sucks dust and dirt from the dust-collecting part a second suction port which is arranged at a different position from a position of the first suction port and is open to outside air to suck dust and dirt together with the outside air, and a suction part which is connected selectively to one of the first suction port and the second suction port and which is driven to suck dust and dirt through the one of the first suction port and the second suction port; the control method comprising:

determining which of the first and second suction ports is connected to the suction part;

when determining a first state in which the first suction port is connected to the suction part, driving the suction part and automatically stopping the suction part after determining an elapsing of a first specified period of time; and

while determining a second state in which the second suction port is connected to the suction part; driving the suction part, enabling stopping of the suction part through an operation for stopping the suction part, and stopping the suction part automatically when the suction part is not stopped after determining an elapsing of a second specified period of time in a state in which the suction part is driven, the second specified period of time being different from the first specified period of time.

10. The control method for the dust-collecting device according to claim 9 , further comprising changing an indication state of a lamp when the second suction port is connected to the suction part and the driving of the suction part is continued for a specified period of time.

11. The control method for the dust-collecting device according to claim 10 , wherein the indication state of the lamp is different between a first case in which power is applied in the first state in which the first suction port is connected to the suction part and a second case in Which power is applied in the second state in which the second suction port is connected to the suction part.

12. The control method for the dust-collecting device according to claim 10 , further comprising:

making the lamp ( 1 ) be in an off-state when power is not applied; ( 2 ) be in a flickering-state when power is applied in the second state in which the second suction port is connected to the suction part and when the second suction port is connected to the suction part and the suction part continues driving for the specified period of time; and ( 3 ) be in an on-state in other cases.

13. The control method for the dust-collecting device according to claim 10 , further comprising:

making the lamp ( 1 ) be in an off-state when power is not applied; ( 2 ) while in the state where power is applied, making the lamp be in an on-state when the first suction port is connected to the suction part and ( 3 ) be in a flickering-state when the second suction port is connected to the suction part.

14. The control method for the dust-collecting device according to claim 9 , wherein the first suction port is a suction port through which dust and dirt is sucked from a dust-collecting part of the vacuum cleaner, and wherein driving of the suction part is automatically started when the vacuum cleaner is connected to the first suction port when the first suction port is connected to the suction part.

15. The control method for the dust-collecting device according to claim 9 , wherein the first specified period of time is set shorter than the second specified period of time.