Air purification module, air purification system including the same, and method of purifying air

Patent metadata

Field	Value
Publication number	US-2024042089-A1
Application number	US-202318112053-A
Country	US
Kind code	A1
Filing date	Feb 21, 2023
Priority date	Aug 8, 2022
Publication date	Feb 8, 2024
Grant date	—

Abstract

Provided are an air purification module and an air purification system including the same. The air purification module is configured to purify influent unpurified air and discharge purified air and includes: a catalyst filter including a photocatalyst and an oxidation catalyst; and a light-emitting heat source disposed adjacent to the catalyst filter, wherein the light-emitting heat source irradiates, to the catalyst filter, light for activating the photocatalyst, and provides heat to activate the oxidation catalyst, and a temperature of the light-emitting heat source is higher than a temperature of the unpurified air.

First claim

What is claimed is:

1 . An air purification module configured to purify influent unpurified air and discharge purified air and comprising:
a catalyst filter including a photocatalyst and an oxidation catalyst; and a light-emitting heat source disposed adjacent to the catalyst filter, wherein the light-emitting heat source irradiates, to the catalyst filter, light for activating the photocatalyst and provides heat to the catalyst filter to activate the oxidation catalyst therein, and a temperature of the light-emitting heat source is higher than a temperature of the unpurified air.

2 . The air purification module of claim 1 , wherein the temperature of the light-emitting heat source is higher than the temperature of the unpurified air by at least 20 degrees in Celsius (° C.), and
the temperature of the light-emitting heat source is about 20° C. to about 1,000° C.

3 . The air purification module of claim 1 , wherein the light for activating the photocatalyst includes radio waves, microwaves, ultraviolet rays, visible rays, infrared rays, X-rays, or a combination thereof.

4 . The air purification module of claim 1 , wherein the light-emitting heat source includes a first light-emitting heat source surface disposed upstream of air flow and a second light-emitting heat source surface disposed downstream of the air flow,
wherein the light-emitting heat source has a thickness from the first light-emitting heat source surface to the second light-emitting heat source surface and a width defined by a distance between opposite outer peripheral ends of the first light-emitting heat source surface, the thickness of the light-emitting heat source is less than or equal to 50% of the width of the light-emitting heat source, and the thickness of the light-emitting heat source is about 1 millimeter (mm) to about 200 mm.

5 . The air purification module of claim 1 , wherein the light-emitting heat source includes a support and at least one source for the light-emitting heat supply disposed on one surface or opposite surfaces of the support,
wherein the at least one source for the light-emitting heat supply emits light in a first direction crossing a major surface of the support, the at least one source for the light-emitting heat supply releases heat in the first direction and a second direction different from the first direction, the light-emitting heat source additionally includes a light reflective layer, a heat insulating layer, or a light-reflective and heat-insulating layer, and the light reflective layer, the heat insulating layer, or the light-reflective and heat-insulating layer is disposed on at least one selected from an inner side surface of the light-emitting heat source and the opposite surfaces of the support.

6 . The air purification module of claim 1 , wherein the air purification module includes only the light-emitting heat source as an energy source,
a first volume of the air purification module is smaller than a second volume of an air purification module including energy sources other than the light-emitting heat source, the first volume is 50% of less of the second volume, a first power consumption of the air purification module including the light-emitting heat source is smaller than a second power consumption of the air purification module including the energy sources other than the light-emitting heat source, and the first power consumption is 50% less of the second power consumption.

7 . The air purification module of claim 1 , wherein the catalyst filter includes
a first catalyst filter surface disposed upstream of air flow and a second catalyst filter surface disposed downstream of the air flow, the catalyst filter has a thickness from the first catalyst filter surface to the second catalyst filter surface and a width defined by a distance between opposite outer peripheral ends of the first catalyst filter surface, the thickness of the catalyst filter is less than or equal to 50% of the width of the catalyst filter, the thickness of the catalyst filter is about 1 mm to about 200 mm, the air purification module additionally includes a light reflective layer, a heat insulating layer, or a light-reflective and heat insulation layer, and the light reflective layer, the heat insulating layer, or the light-reflective and heat insulation layer is disposed on an inner surface of the catalyst filter.

8 . The air purification module of claim 7 , wherein the catalyst filter includes
a plurality of cells forming an air flow path along a thickness direction of the catalyst filter and disposed parallel and adjacent to each other.

9 . The air purification module of claim 8 , wherein the plurality of cells disposed parallel are disposed regularly or irregularly, or
the plurality of cells disposed parallel are disposed periodically or non-periodically.

10 . The air purification module of claim 8 , wherein the plurality of cells disposed along the thickness direction of the catalyst filter include through-holes and partition walls defining a shape of the through-holes, and
the plurality of cells disposed along the thickness direction of the catalyst filter include a protrusion or a depression.

11 . The air purification module of claim 10 , wherein an inlet of the through-hole is circular, oval, trigonal, tetragonal, pentagonal, hexagonal, octagonal, or a combination thereof in a view from the thickness direction of the catalyst filter,
a surface of the protrusion is circular, oval, trigonal, tetragonal, pentagonal, hexagonal, octagonal, or a combination thereof, a bottom portion of the protrusion is circular, oval, trigonal, tetragonal, pentagonal, hexagonal, octagonal, or a combination thereof in the view from the thickness direction of the catalyst filter, a diameter of the through-hole increases, decreases, or remains constant along the thickness direction of the catalyst filter, a diameter of the protrusion increases, decreases, or remains constant along the thickness direction of the catalyst filter, or a diameter of the depression increases, decreases, or remains constant along the thickness direction of the catalyst filter.

12 . The air purification module of claim 1 , wherein the catalyst filter includes a solid substrate and a catalyst coated on the solid substrate,
wherein the catalyst includes a photocatalyst and an oxidation catalyst.

13 . The air purification module of claim 12 , wherein the photocatalyst includes a first metal, a first metal oxide, a first metal carbide, a first metal nitride, a first metal oxynitride, or a combination thereof,
the first metal includes Ti, Zn, Zr, Ta, Nb, W, Cu, Pt, Au, Ag, Zn, Pd, an alloy thereof, or a combination thereof, the photocatalyst is in a form of a particle, and the particle has a spherical shape, a tube shape, a rod shape, a fiber shape, a sheet shape, or a combination thereof, and the particle is a primary particle or a secondary particle that is a combination of a plurality of primary particles.

14 . The air purification module of claim 13 , wherein the oxidation catalyst includes a second metal, a second metal oxide, a second metal carbide, a second metal nitride, a second metal oxynitride, or a combination thereof,
the second metal is different from the first metal, and includes Ti, Mn, Co, Ce, Al, Fe, Ni, Na, In, Bi, W, Sn, Pt, Au, Ag, Zn, Pd, an alloy thereof, or a combination thereof, the oxidation catalyst is in a form of a particle, and the particle has a spherical shape, a tube shape, a rod shape, a fiber shape, a sheet shape, or a combination thereof, and the particle of the oxidation catalyst i

Assignees

• Samsung Electronics Co Ltd

Inventors

• Ham Dongjin
• Kim Mijong
• Koo Minseok
• Kwon Hyukjae
• Oh Sehyeong
• Lee Hyun Chul

Classifications

• A61L9/205 Primary

  using a photocatalyst or photosensitiser · CPC title

• B01J35/004

  Operations & Transport · mapped topic

• B01J35/08

  Operations & Transport · mapped topic

• B01J37/0215

  Coating · CPC title

• B01D46/2486

  characterised by the shapes or configurations · CPC title