FINE PARTICLE DIFFUSION DEVICE

• US 20110139889A1
• Filed: 04/15/2009
• Published: 06/16/2011
• Est. Priority Date: 08/26/2008
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Karita, Hideyuki, Ohtsuka, Masaki
• Granted Patent: US 9,061,084 B2
• Time in Patent Office: Days
• US Class Current: 239/34
• CPC Class Codes: A01M 1/2033 using a fan
• CPC Class Codes: A61L 9/122 comprising a fan
• CPC Class Codes: A61L 9/22 Ionisation
• CPC Class Codes: B03C 3/32 Transportable units, e.g. for cleaning room air
• CPC Class Codes: B03C 3/383 using radiation
• CPC Class Codes: F24F 1/0071 with means for purifying supplied air perfuming or deodorising means F24F1/008
• CPC Class Codes: F24F 8/194 by filtering using high voltage
• CPC Class Codes: F24F 8/30 by ionisation
• CPC Class Codes: Y02A 50/20 Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

A fine particle diffusion device includes: a first outlet (10a to 10c) through which a first air current is discharged to a space above a living space within a living room; a second outlet (10d) which is arranged below the first outlet (10a to 10c) and through which a second air current is discharged to a space below the first air current; and a fine particle generation device (17) which generates fine particles. Here, the fine particles generated by the fine particle generation device (17) are discharged into the living room, and the concentration of the fine particles discharged through the first outlet (10a to 10c) is lower than the concentration of the fine particles discharged through the second outlet (10d).

Claims

1. A fine particle diffusion device comprising:

a first outlet through which a first air current is discharged upward;

a second outlet which is arranged below the first outlet and through which a second air current is discharged to a space below the first air current; and

a fine particle generation device which generates fine particles,

wherein the fine particles generated by the fine particle generation device are discharged, and a concentration of the fine particles discharged through the first outlet is lower than a concentration of the fine particles discharged through the second outlet.

2. The fine particle diffusion device of claim 1,

wherein the fine particles are not discharged through the first outlet.

3. The fine particle diffusion device of claim 1,

wherein a speed of the first air current is higher than a speed of the second air current.

4. The fine particle diffusion device of claim 3,

wherein the second air current is adjacent to the first air current.

5. The fine particle diffusion device of claim 3,

wherein the first outlet is divided into an upper portion and a lower portion, and a speed of the first air current discharged through the upper portion of the first outlet is higher than a speed of the first air current discharged through the lower portion.

6. The fine particle diffusion device of claim 1,

wherein the second air current is discharged through the second outlet such that the second air current extends in a vertical direction.

7. The fine particle diffusion device of claim 1,

wherein the second air current is discharged through the second outlet such that the second air current extends in a lateral direction.

8. The fine particle diffusion device of claim 1,

wherein the first air current is discharged through the first outlet such that the first air current extends in a lateral direction.

9. The fine particle diffusion device of claim 1,

wherein a lateral width of the first outlet is sufficiently greater than a height of the first outlet.

10. The fine particle diffusion device of claim 1,

wherein the fine particles generated by the fine particle generation device include any one of an ion, an aromatic substance, a deodorant, an insecticide and a bactericide.

11. A fine particle diffusion device that includes a fine particle generation device for generating fine particles and that discharges the fine particles through an outlet by driving of a blower fan,

wherein an air flow path coupling the blower fan to the outlet includes a plurality of vertical division passages that divide the outlet vertically, and a speed of an air current flowing in one of the vertical division passages at an upper portion is higher than a speed of an air current flowing in one of the vertical division passages at a lower portion.

12. The fine particle diffusion device of claim 11,

wherein the fine particle generation device is arranged in the vertical division passage at the lower portion.

13. The fine particle diffusion device of claim 11,

wherein the air flow path extends upward from the blower fan and bends frontward, and the air flow path extends from a vicinity of the blower fan to the outlet to form the vertical division passages.

14. The fine particle diffusion device of claim 11,

wherein the air flow path is provided with an upper wall having a curved surface portion and a lower wall having a curved surface portion, extends upward from the blower fan and bends frontward and extends to the outlet from an upstream side of a position intersecting a center of the curved surface portion of the upper wall and a center of the curved surface portion of the lower wall to form the vertical division passages.

15. The fine particle diffusion device of claim 11,

wherein the blower fan is formed with a cross flow fan, and the vertical division passage at the lower portion is arranged on an inner circumferential side of the blower fan as compared with the vertical division passage at the upper portion.

16. The fine particle diffusion device of claim 11,

wherein the vertical division passages have a vertically increasing width portion that increases a width thereof as the vertically increasing width portion extends from an upstream side to a downstream side and that extends an air current in a vertical direction, and a cross section of the vertically increasing width portion perpendicular to the air current is formed in the shape of a laterally extending slit.

17. The fine particle diffusion device of claim 16,

wherein the vertical division passages have, on a downstream side of the vertically increasing width portion, a laterally increasing width portion that increases a width thereof as the laterally increasing width portion extends from an upstream side to a downstream side and that extends an air current in a lateral direction.

18. The fine particle diffusion device of claim 16,

wherein one of the vertical division passages having the fine particle generation device arranged therein is provided with a narrowed portion that narrows a flow path either at a position where the fine particle generation device is arranged or on an upstream side thereof

19. The fine particle diffusion device of claim 17,

wherein the laterally increasing width portion has a plurality of thin passages that laterally divide each of the vertical division passages, and a lateral width of each of the thin passages is increased as the thin passage extends from an upstream side to a downstream side.

20. The fine particle diffusion device of claim 11,

wherein the fine particles generated by the fine particle generation device include any one of an ion, an aromatic substance, a deodorant, an insecticide and a bactericide.

21. A fine particle diffusion device comprising:

an ion generation device including a first ion generation portion that generates one of a positive ion and a negative ion and a second ion generation portion that generates the other of the positive ion and the negative ion;

a blower fan; and

an air flow path that guides, by driving of the blower fan, the ions generated by the ion generation device to an outlet,

wherein the air flow path includes a plurality of lateral division passages whose lateral widths are increased as the lateral division passages extend from an upstream side to a downstream side and which are divided laterally, and one of the positive ion and the negative ion flows in each of the lateral division passages.

22. The fine particle diffusion device of claim 21,

wherein one of the first and second ion generation portions is arranged either in each of the lateral division passages or in a vicinity of an open end of each of the lateral division passages on an air inflow side.

23. The fine particle diffusion device of claim 22,

wherein polarities of the ions generated by the first and second ion generation portions are switched every predetermined period.

24. The fine particle diffusion device of claim 22,

wherein the positive ion flows in one of the lateral division passages adjacent to each other and the negative ion flows in the other of the adjacent lateral division passages.

25. The fine particle diffusion device of claim 21,

wherein the first and second ion generation portions are arranged either in each of the lateral division passages or in a vicinity of an open end of each of the lateral division passages on an air inflow side, and the first and second ion generation portions are alternately driven.

26. The fine particle diffusion device of claim 21,

wherein the air flow path is provided with a left wall having a curved surface portion and a right wall having a curved surface portion and extends toward both sides, and open ends of the lateral division passages on an air inflow side are formed on an upstream side of a position intersecting a center of the curved surface portion of the left wall and a center of the curved surface portion of the right wall.

27. The fine particle diffusion device of claim 21, further comprising:

vertical division passages that divide the air flow path vertically,

wherein the lateral division passages are composed of thin passages that laterally divide the vertical division passages on a side of the outlet.

28. The fine particle diffusion device of claim 27,

wherein the ion generation device is arranged in one of the vertical division passages at a lower portion, and a speed of an air current flowing in one of the vertical division passages at an upper portion is higher than a speed of an air current flowing in the vertical division passage at the lower portion.