Air conditioner

• US 6,141,983 A
• Filed: 04/30/1999
• Issued: 11/07/2000
• Est. Priority Date: 06/30/1998
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Sakai, Hirokazu, Tomita, Shigeki, Asada, Noriya, Morimoto, Chiaki, Nishikawa, Kazuhiro, Ito, Hirozumi
• Primary Examiner(s): Joyce, Harold
• Application Number:
  US09/302,736
• Time in Patent Office: 557 Days
• Field of Search: 454/233, 415/53.1, 415/53.3, 62/244, 62/259.1, 62/426, 62/419, 165/122, 165/53
• US Class Current: 62/259.1
• CPC Class Codes: F24F 1/0011 characterised by air outlets
• CPC Class Codes: F24F 1/0033 having two or more fans
• CPC Class Codes: F24F 1/0047 mounted in the ceiling or at the ceiling
• CPC Class Codes: F24F 1/0057 mounted in or on a wall

Abstract

The constitution comprises a grille for sucking air, a heat exchanger for exchanging heat with the air, a blower for feeding the air exchanged of heat by the heat exchanger, and an air diffuser for blowing out the wind generated by the blower. The air diffuser has such a shape that the direction of the wind blown out from both ends in a horizontal direction may be the lower direction than the direction of the wind blown out from the center in the horizontal direction. The air diffuser has such a shape that the outer circumference of the section in the horizontal direction has a nearly arc shape. It can be installed at a corner of mutually adjacent walls of a room or on a wall. In this constitution, the heat exchanged wind reaches uniformly all parts of the room, and the comfort is notably enhanced. At the same time, generation of unusual sound is suppressed.

Claims

1. An air conditioner comprising:

a grille for receiving air,

a heat exchanger for exchanging heat of said air, and

a blower for blowing said heat exchanged air out of said air conditioner through

an air diffuser,

wherein the heat exchanged air is blown out of the air diffuser more downwardly at ends thereof than at a center point thereof.

2. An air conditioner of claim 1,

wherein said air diffuser has such a shape that an outer circumference of the section in the horizontal direction has a nearly arc shape.

3. An air conditioner of claim 1, further comprising

a passage placed between said blower and said air diffuser,

wherein said wind is blown out through said passage and said air diffuser.

4. An air conditioner of claim 1, wherein said air diffuser has a passage composed a stabilizer and a rear guider, and

said wind is controlled in the blow-out direction by the shape of said stabilizer and rear guider in said passage, and is blown out from said air diffuser.

5. An air conditioner of claim 1, wherein said blower has a cross flow fan.

6. An air conditioner of claim 1, wherein the section in the horizontal direction has a nearly sector shape.

7. An air conditioner of claim 1, wherein the section in the horizontal direction has a quarter divided shape of at least one shape selected from the group consisting of square, rectangle, circle and ellipse.

8. An air conditioner of claim 1,

wherein said air diffuser has a passage composed a stabilizer and a rear guider,

said stabilizer has a horizontal plane near the outlet of said air diffuser, and

the region of said horizontal plane retreats to the back side of the air diffuser as going from the center of said air diffuser toward the both ends,

thereby blowing out said wind blown out from said both ends in said horizontal direction in the lower direction than the direction of said wind blown out from said center of said horizontal direction.

9. An air conditioner of claim 1, wherein said air diffuser has a passage composed a stabilizer and a rear guider,

said stabilizer has a horizontal plane near the outlet of said air diffuser, and

the length of said horizontal plane becomes shorter as going from the center of said air diffuser toward the both ends,

thereby blowing out said wind blown out from said both ends in said horizontal direction in the lower direction than the direction of said wind blown out from said center of said horizontal direction.

10. An air conditioner of claim 1, wherein said air diffuser has such a shape that the inclination is changed downward as going from the center in the horizontal direction toward the both ends,

thereby blowing out said wind blown out from said both ends in said horizontal direction in the lower direction than the direction of said wind blown out from said center of said horizontal direction.

11. An air conditioner of claim 1, wherein said air diffuser has a wind direction changer placed at the opening of said air diffuser so as to be movable vertically,

thereby controlling the direction of said wind as said wind direction changer moves vertically.

12. An air conditioner of claim 11, wherein said wind direction changer is placed outside of said air diffuser.

13. An air conditioner of claim 11, wherein said wind direction changer is placed to cover said air diffuser, and has a shape along the outer circumference of said air diffuser.

14. An air conditioner of claim 1, wherein said air diffuser has a passage composed of a stabilizer and a rear guider, and

said rear guider has a first bump formed at a position where the distance between said blower and said rear guide may be the shortest, and a second bump formed at the upstream side of the air flow of said first bump.

15. An air conditioner of claim 14, wherein said second bump has a larger shape at both ends than at the center in the horizontal direction of said suction port.

16. An air conditioner of claim 14, wherein the shortest distance between said second bump and said blower is longer than the shortest distance between said first bump and said blower.

17. An air conditioner of claim 1, further comprising an electrical part placed between said suction port and said heat exchanger.

18. An air conditioner of claim 1, further comprising a water pan placed in the lower direction of said heat exchanger.

19. An air conditioner of claim 1, further comprising a water pan placed in the lower direction of said heat exchanger, and

a filter placed between said suction port and said water pan.

20. An air conditioner of claim 1, further comprising a filter placed between said suction port and said heat exchanger.

21. An air conditioner of claim 20, wherein said filter is placed to cover said heat exchanger, and has a section of a nearly L-shape.

22. An air conditioner of claim 1, wherein said grille is placed at the front side.

23. An air conditioner of claim 1, wherein said grille is placed at the lower side.

24. An air conditioner of claim 1, further comprising a louver placed at the upper side.

25. An air conditioner of claim 1, wherein said blower has a plurality of cross flow fans coupled through a universal joint, and

said plurality of cross flow fans are placed along the opening of said air diffuser.

26. An air conditioner of claim 1, further comprising a water absorbing member placed in said air diffuser.

27. An air conditioner of claim 1, wherein said air diffuser has a passage composed of a stabilizer and a rear guider,

said stabilizer is placed at the lower side of said passage, and

said stabilizer has a leading end bump formed at the leading end at the outlet of said air diffuser, near the center in the horizontal direction of said air diffuser.

28. An air conditioner of claim 27, wherein said leading end bump has an action for blowing out said wind blown out from said center in a further horizontal direction.

29. An air conditioner of claim 27, wherein said leading end bump is composed of a water absorbing member.

30. An air conditioner of claim 1, wherein said air diffuser has a passage composed of a stabilizer and a rear guider,

said stabilizer is placed at the lower side of said passage, and

said stabilizer has a straightening plate extended nearly in the horizontal direction, placed at the leading end of the outlet of both ends in the horizontal direction of said air diffuser.

31. An air conditioner of claim 30, wherein said straightening plate has an action of blowing out said wind blown out from said both ends in a slightly horizontal direction than the lower direction.

32. An air conditioner of claim 1, wherein said air diffuser has a passage composed of a stabilizer and a rear guider,

said stabilizer is p laced at the lower side of said passage,

said stabilizer has a leading end bump formed at the leading end at the outlet of said air diffuser, at the center in the horizontal direction of said air diffuser, and

said stabilizer has a straightening plate extended nearly in the horizontal direction, p lac ed at the leading end of the outlet of said air diffuser, at both ends of said air diffuser.

33. An air conditioner of claim 32, wherein said leading end bump has an action for blowing out said wind blown out from said center in a further horizontal direction, and

said straightening plate has an action of blowing out said wind blown out from said both ends in a slightly horizontal direction than the lower direction.

34. An air conditioner of claim 32, having a nearly sector shape so as to be installed at a corner of two adjacent walls.

35. An air conditioner of claim 1, having a nearly sector shape so as to be installed at a corner of two adjacent walls.

36. An air conditioner of claim 32, wherein said air diffuser has a shape having an outer circumference of a nearly arc shape on the section in the horizontal direction, so as to be installed at a corner of two adjacent walls.

37. An air conditioner of claim 1, wherein said air diffuser has a shape having an outer circumference of a nearly arc shape on the section in the horizontal direction, so as to be installed at a corner of two adjacent walls.

38. An air conditioner of claim 1, wherein said air diffuser has a shape having an outer circumference of a nearly arc shape on the section in the horizontal direction, and

the back side of said air diffuser is mounted on the wall.

39. An air conditioner of claim 1, wherein the section in the horizontal direction has a quarter divided shape of at least one shape selected from the group consisting of square, rectangle, circle and ellipse, so as to be installed at a corner of mutually adjacent walls in a room, and

said air diffuser is placed at a position in the direction toward the inner side of said room.

40. An air conditioner of claim 39, wherein said air diffuser has at least one shape of nearly arc shape and nearly linear shape.