Air conditioner and extension nozzle of cleaner used for the same

• US 8,343,244 B2
• Filed: 07/30/2008
• Issued: 01/01/2013
• Est. Priority Date: 07/31/2007
• Status: Expired due to Fees

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Sakashita, Akihiko
• Primary Examiner(s): Smith, Duane
• Assistant Examiner(s): MCKENZIE, THOMAS B
• Application Number:
  US12/671,366
• Publication Number:
  US 20100199697A1
• Time in Patent Office: 1,616 Days
• Field of Search: 152462-2464, 15347-353, 154151-4221, 552/83, 552/85, 552/89, 552/90, 552/91, 552/93, 552/95, 552/96, 552/97, 552/98, 552/99, 553/00, 623/03, 622591-2594, 165/5, 165/95, 165/303, 165/DIG.11, 165/DIG.85
• US Class Current: 55/283
• CPC Class Codes: B01D 2279/50 for air conditioning air-conditioning systems comprising filters F24F8/10
• CPC Class Codes: B01D 46/681 by scrapers, brushes or the like
• CPC Class Codes: B01D 46/682 by nozzles
• CPC Class Codes: B08B 9/035 by suction
• CPC Class Codes: F24F 1/0047 mounted in the ceiling or at the ceiling
• CPC Class Codes: F24F 1/0067 by the shape of the heat exchangers or of parts thereof, e.g. of their fins
• CPC Class Codes: F24F 1/0073 characterised by the mounting or arrangement of filters
• CPC Class Codes: F24F 13/28 Arrangement or mounting of filters
• CPC Class Codes: F24F 2013/0616 Outlets that have intake openings
• CPC Class Codes: F24F 8/90 Cleaning of purification apparatus

Abstract

Dust collection structure for collecting the dust removed from an air filter of an indoor unit has been devised to reduce user'"'"'s labor in collecting the dust as much as possible. An indoor unit includes, in a casing, an indoor heat exchanger, an indoor fan for sucking air from inside of a room, and blowing the air to the inside of the room, and an air filter arranged on an inlet side of the indoor fan. The dust trapped on the air filter is removed by the dust removing means, and is contained in the dust containing part. A nozzle connector for arranging a nozzle of a cleaner at a predetermined position where suction of the contained dust is allowed is provided at a downstream outlet of a dust collection path as a transfer path for transferring the dust in collecting the contained dust.

Claims

1. An air conditioner, comprising:

an indoor unit including

a casing,

an indoor heat exchanger in said casing,

an indoor fan in said casing for sucking air from inside of a room, and blowing the air to the inside of the room, and

an air filter in said casing arranged on an inlet side of the indoor fan;

a dust remover for removing dust trapped on the air filter;

a dust containing part for containing the dust removed by the dust remover;

a dust collection path as a transfer path for transferring the dust in collecting the contained dust;

a nozzle connector for arranging a nozzle of a cleaner at a predetermined position where suction of the contained dust is allowed provided at a downstream outlet of the dust collection path, the nozzle connector configured to be slidable in a direction from the outside of the casing to the inside of the casing; and

a valve for switching between a communication position and a discommunication position between a space inside the nozzle connector and the dust collection path having a position upstream of the nozzle connector, the valve including

a mechanical link to the nozzle connector, and

a spring biasing the valve in the discommunication position, wherein

the mechanical link is actuated by movement of the nozzle connector to switch the valve between the communication position and the discommunication position between the space inside the nozzle connector and the dust collection path, and

the valve moves in said direction from the outside of the casing to the inside of the casing to switch to the communication position.

2. The air conditioner of claim 1, wherein

the nozzle connector is arranged inside the casing, and inside a room-facing surface of a room panel arranged on a room-facing side of the casing.

3. The air conditioner of claim 1, wherein

the nozzle connector is arranged at a corner of a room panel arranged on a room-facing side of the casing.

4. The air conditioner of claim 1, wherein

the nozzle connector is arranged in an inlet of the casing formed on the inlet side of the indoor fan.

5. The air conditioner of claim 1, wherein

a suction grille having a grille portion formed in a center thereof to allow the air to pass through is arranged in an inlet of the casing formed on the inlet side of the indoor fan, and

the nozzle connector is arranged outside the grille portion of the suction grille.

6. The air conditioner of claim 1, wherein

an open/close mechanism is provided in a dust collection path extending from the dust containing part to a room panel arranged on a room-facing side of the casing so as to communicate or discommunicate the dust collection path with the inside of the room.

7. The air conditioner of claim 6, wherein

the nozzle connector is arranged at a corner of the room panel arranged on the room-facing side of the casing, and a corner cover is arranged to cover a room-facing side of the nozzle connector as the open/close mechanism.

8. The air conditioner of claim 6, wherein

a room-facing side of the air filter is covered with a suction grille, and the nozzle connector is arranged in the inlet of the casing formed on the inlet side of the indoor fan, with the room-facing side thereof being covered with the suction grille as the open/close mechanism.

9. The air conditioner of claim 6, wherein

the open/close mechanism is configured to be rotatable about one end thereof as a rotation center, and is configured to be able to engage with a push lock at the other end thereof, the engagement between the other end and the push lock being released upon application of a pressing force to the open/close mechanism from the inside of the room.

10. The air conditioner of claim 6, wherein

the open/close mechanism is configured to be rotatable about one end thereof as a rotation center in such a manner that the open/close mechanism is opened when pushed from the inside of the room.

11. The air conditioner of claim 10, wherein

a biasing member for biasing the open/close mechanism to a closed state provided at the one end of the open/close mechanism.

12. The air conditioner of claim 6, wherein

the open/close mechanism is configured to be slidable.

13. The air conditioner of claim 6, further comprising:

a drive mechanism for opening and closing the open/close mechanism.

14. The air conditioner of claim 1, further comprising:

a dust collection box for accumulating the dust contained in the dust containing part, wherein

the dust collection path is connected to the dust collection box.

15. The air conditioner of claim 14, wherein

a duct comprising the dust collection path, and the dust transfer path extending from the dust containing part to the dust collection box is detachably connected to the dust collection box.

16. The air conditioner of claim 1, wherein

the dust collection path is directly connected to the dust containing part in the casing, and

an air vent is foamed in the dust containing part to oppose a junction with the dust collection path.

17. The air conditioner of claim 16, wherein

a duct comprising the dust collection path is detachably connected to the casing.

18. The air conditioner of claim 1, wherein

the nozzle connector is formed with a cross-sectional area of a dust path formed therein increasing toward the inside of the room.

19. The air conditioner of claim 1, wherein

the nozzle connector protrudes toward the inside of the room with its cross-sectional area decreasing toward the inside of the room, and a hole through which the dust can pass is provided at a protruding end of the nozzle connector.

20. The air conditioner of claim 19, wherein

the nozzle connector is formed in the shape of a dome protruding toward the inside of the room.

21. The air conditioner of claim 19, wherein

the space inside the nozzle connector communicates with the dust collection path through a communication hole, and

the valve includes a valve element configured to move together with the nozzle connector, thereby closing the communication hole when the nozzle connector is at a lowermost position on the room-facing side, or opening the communication hole when the nozzle connector is inside of the lowermost position in the casing.

22. The air conditioner of claim 21, further comprising:

a biasing member for biasing the nozzle connector toward the inside of the room.

23. The air conditioner of claim 19, wherein

the valve is configured to open toward the nozzle connector.

24. The air conditioner of claim 23, wherein

the valve element is rotatably supported at an upper portion thereof, and includes a protrusion protruding toward the nozzle connector, and

the nozzle connector includes an abutment abutting the protrusion from the inside of the room.

25. The air conditioner of claim 19, wherein

a guide is arranged to surround the nozzle connector so as to position the nozzle of the cleaner in the hole of the nozzle connector.

26. The air conditioner of claim 25, wherein

the guide includes a plurality of ribbed members arranged to surround the nozzle connector.

27. The air conditioner of claim 25, further comprising:

a closure member for covering the room-facing side of the nozzle connector, wherein

the closure member is configured to be rotatable about one end thereof as a rotation center so as to be opened when pushed from the inside of the room, and

the guide includes a recess for receiving the closure member in the open state.

28. The air conditioner of claim 10, wherein

a UV coating is applied to a room-facing surface of the closure member.

29. The air conditioner of claim 1, wherein

a flexible duct comprises the dust collection path, and

the flexible duct and the nozzle connector are detachably connected.

30. An extension nozzle of a cleaner attached to an end of a nozzle of a cleaner, the nozzle being brought into contact with the nozzle connector of the air conditioner of claim 19 at an end thereof, wherein

the end is formed in such a manner that an opening in the end overlaps with the hole of the nozzle connector as viewed in plan, when the end pushes the nozzle connector toward the inside of the casing with an outer circumference thereof abutting the guide arranged to surround the nozzle connector.

31. The extension nozzle of claim 30, wherein

the nozzle connector is in the shape of a dome protruding toward the inside of the room, and

the opening in the end abutting the nozzle connector is in the shape of a perfect circle.

32. The extension nozzle of claim 30, wherein

the end is bent substantially in the shape of L.

33. The extension nozzle of claim 30, wherein

a distal end of the end is configured in such a manner that an extension tube bent substantially in the shape of L can be attached thereto.

34. The extension nozzle of claim 30, wherein

a coupling having an outer diameter similar to an inner diameter of a proximal end is provided at a distal end of the end.

35. The extension nozzle of claim 30, further comprising:

a nozzle engagement for attaching the extension nozzle detached from the end of the nozzle of the cleaner to the nozzle to be parallel with the nozzle.

36. The extension nozzle of claim 35, wherein

the nozzle engagement is a tape wound around the nozzle.

37. The extension nozzle of claim 36, wherein

an insertion part through which the tape passes is provided on an outer circumferential surface of the extension nozzle.

38. The extension nozzle of claim 37, wherein

a portion of the tape passing through the insertion part is narrower than an internal dimension of the insertion part, and the other portion of the tape is wider than the internal dimension of the insertion part.

39. The extension nozzle of claim 35, wherein

a second nozzle engagement capable of engaging with an engagement provided on an outer circumferential surface of the nozzle is provided on an outer circumferential surface of the extension nozzle.

40. The extension nozzle of claim 30, wherein

a second insertion part is formed on an outer circumferential surface of the extension nozzle, and

a ring-shaped member a portion of which passes through the second insertion part is provided.

41. An air conditioner, comprising:

an indoor unit including

a casing,

an indoor heat exchanger in said casing,

an indoor fan in said casing for sucking air from inside of a room, and blowing the air to the inside of the room, and

an air filter in said casing arranged on an inlet side of the indoor fan;

a dust remover for removing dust trapped on the air filter;

a dust containing part for containing the dust removed by the dust remover;

a dust collection path as a transfer path for transferring the dust in collecting the contained dust;

a nozzle connector for arranging a nozzle of a cleaner at a predetermined position provided at a downstream outlet of the dust collection path, the nozzle connector having a dome shape protruding toward the inside of the room and configured to be slidable in a vertical direction of said room;

a spring biasing the nozzle connector in a direction from inside the casing to outside the casing;

an abutment extending outward from a distal end of the nozzle connector; and

a valve for switching communication and discommunication between a space inside the nozzle connector and the dust collection path having a position upstream of the nozzle connector, the valve including

a protrusion extending toward the nozzle connector, the protrusion receiving force from the abutment and actuated by vertical movement of the nozzle connector, wherein

the force received by the protrusion from the abutment switches the valve from a discommunication state to a communication state between the space inside the nozzle connector and the dust collection path.