KR20180076681A - Photocatalyst Device and Air Conditioner for Vehicle - Google Patents

Abstract

The present invention relates to a photocatalyst device and an air conditioner for a vehicle having the same and, more specifically, relates to a photocatalyst device and an air conditioner for a vehicle having the same, which can purify air flowing into an air conditioning case through photocatalytic reaction by irradiated light, and further, sterilize and deodorize an evaporator. According to the present invention, the photocatalyst device comprises: a body (110); a catalyst unit (120); and a light source unit (130).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a photocatalyst device,

The present invention relates to a photocatalyst apparatus and a vehicle air conditioner having the same. More particularly, the present invention relates to a photocatalyst apparatus for purifying air introduced into the air conditioning case through a photocatalytic reaction with light to be irradiated and sterilizing and deodorizing the evaporator, And a vehicle air conditioner including the same.

An air conditioner for a vehicle is an apparatus for cooling or heating the interior of a vehicle by introducing air outside the vehicle into the interior of the vehicle or heating or cooling the air in the interior of the vehicle to circulate air. , A heater core for heating action, and air blown or heated by an evaporator or a heater core are selectively blown to respective portions of the vehicle interior using a blowing mode switching door.

On the other hand, as the vehicle penetration rate continues to increase, and as the user's time within the vehicle also increases, studies for maintaining the comfort inside the vehicle continue, but the interior of the vehicle is narrow and closed, The air pollution in vehicles has become more and more polluted due to the fine dust and various pollutants of the vehicle. Recently, a vehicle air purification apparatus for purifying indoor air of vehicles has been developed.

As an example, Japanese Patent No. 2549032, which is a prior application, discloses a cooling device with a deodorizer for an automobile.

1 is a cross-sectional view showing a conventional cooling apparatus with a deodorizer for an automobile.

1, a conventional air conditioner with a deodorizer for an automobile is provided with an outside air inlet 21 and an inside air inlet 22 in a case 20, and an outside air inlet 21 and a cold air inlet 22 And an intake door 23 for selectively opening and closing is rotatably provided.

An actuator 30 is connected to the pivot shaft of the intake door 23 and is controlled by the control means 31.

A blower 25 for blowing the air introduced from the inside and outside air intake ports 21 and 22 to the downstream side is provided on the downstream side of the intake door 23 and the blower 25 is connected to the fan 32 and the fan 32 And a motor 33 for rotating the motor.

On the downstream side of the blower 25, an evaporator 26 is installed and exchanges heat with air passing therethrough to cool the air. The air passage 28 on the downstream side of the evaporator 26 is provided with a photocatalytic filter 27 for generating active oxygen by irradiation with a long wavelength light.

The photocatalytic filter 27 generates active oxygen by irradiation of the ultraviolet lamp 29, and the active oxygen oxidizes and decomposes the substance causing the odor to a very low concentration oxidizable compound.

The photocatalytic filter 27 generates active oxygen by irradiation of the ultraviolet lamp 29, and the active oxygen oxidizes and decomposes the substance causing the odor to a very low concentration oxidizable compound. The ultraviolet lamp 29 is disposed between the evaporator 26 and the photocatalytic filter 27. On the downstream side of the photocatalytic filter 27, a metal catalyst filter 34 for removing ozone contained in the flowing air is provided. Reference numeral 35 denotes a temperature sensor, 36 denotes a sensor for sensing the odor level, 37 denotes a fan switch, and 24 denotes an air outlet.

At this time, the photocatalytic filter 27 is installed downstream of the evaporator 26 to adsorb and deodorize the odor generated in the evaporator 26, and accordingly, there is a problem in that the filter must be replaced due to a decrease in the amount of dust overflowing. In addition, the conventional cooling apparatus with a deodorizer for an automobile has a problem that the ultraviolet lamp 29 and the photocatalytic filter 27 are separate components, resulting in deterioration in assemblability.

In addition, there is a demand to reduce the size of the photocatalyst to reduce the cost, and there is a fear that the performance of the photocatalyst due to the reduction of the catalyst is lowered.

Japanese Patent Publication No. 2549032

It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an air conditioner which is capable of sterilizing and deodorizing an evaporator, The present invention provides a photocatalyst apparatus and a vehicle air conditioner including the photocatalyst apparatus.

Another object of the present invention is to provide a photocatalyst device and a vehicle air conditioner including the photocatalyst device, which can prevent performance degradation due to a decrease in photocatalyst size by including two light sources spaced apart from each other at equal intervals in the vertical direction of the photocatalyst .

A photocatalytic device according to the present invention includes: a body; A catalytic unit fixed to the body and generating photocatalytic reaction by light irradiated to generate oxygen radicals; And a light source unit including a lower first light source unit and a second upper light source unit, the lower light source unit and the second upper light source unit being spaced apart from each other in the vertical direction and irradiating light to the catalyst unit.

The body may further include a catalyst accommodating portion for fixing the catalyst portion, a first light source fixing portion spaced downward from the catalyst accommodating portion to fix the first light source portion, and a second light source fixing portion extending upward from the catalyst accommodating portion, And a second light source fixing unit to which the second light source unit is fixed.

The second light source fixing part may include a second light source extension part extending upward from the catalyst receiving part and extending to penetrate a side surface thereof and a second light source extension part formed at an end of the second light source extension part, And a second light source position part in which the light source part is fixed.

Also, the catalyst portion may include a coating layer coated on the carrier with a catalyst having a porosity of 80% or more and a thickness of 5 mm to 50 mm, a catalyst liquefied in a gel form by adding a cocatalyst and an acidic additive .

Further, the catalyst portion is characterized in that the catalyst has a weight of 10% to 30% by weight with respect to the weight of the carrier.

The air conditioner according to the present invention comprises: an air conditioning case in which a vent for discharging air is formed by forming a space through which air is introduced; An evaporator provided inside the air conditioning case; A heater core disposed at a rear side of the air conditioning case in an air flow direction; And the photocatalyst device.

Further, the photocatalytic device is provided in front of the evaporator in the air flow direction.

Further, the photocatalytic device is provided at the rear side of the evaporator in the air flow direction.

The vehicle air conditioner may further include a mounting hole formed in the airtight case so as to be hollow and closed by the body, and a fixing part for fixing the air conditioner case to the airtight case is formed in the body.

The photocatalytic device is characterized in that the fixing portion is protruded such that the catalytic portion is located inside the air conditioning case with respect to the outer surface of the air conditioning case, and the first light source fixing portion is located outside the air conditioning case.

In the vehicle air conditioner, the photocatalytic device is mounted on one side of the air conditioner case.

The photocatalyst apparatus and the vehicle air conditioner including the photocatalyst apparatus according to the present invention not only can purify the air flowing into the air conditioner case, but also sterilize and deodorize the evaporator, and the photocatalyst and the light source are formed into a single body There is an advantage that it is easy.

Further, the photocatalyst apparatus according to the present invention and the vehicle air conditioner including the same include two light sources spaced apart at equal intervals in the vertical direction of the photocatalyst, thereby preventing deterioration in performance as the photocatalyst size is reduced have.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a conventional air-cooling apparatus with a deodorizer for an automobile. FIG.
2 is a perspective view of a photocatalytic device according to the present invention.
3 is an exploded perspective view of the photocatalyst apparatus according to the present invention.
4 is a sectional view of the photocatalytic device according to the present invention.
5 is a view showing the effect of the photocatalytic device according to the present invention.
6 is another view showing the effect of the photocatalytic device according to the present invention.
7 is a view showing a catalyst part of a photocatalytic device according to the present invention.
8 is a sectional view showing the mounting of the photocatalytic device according to the present invention.
9 to 11 are views showing a vehicle air conditioner according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a photocatalytic device and a vehicle air conditioner including the same according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of the photocatalyst apparatus according to the present invention, FIG. 3 is an exploded perspective view of the photocatalyst apparatus according to the present invention, FIG. 4 is a sectional view of the photocatalytic apparatus according to the present invention, 5 is a view showing the effect of the photocatalytic device according to the present invention, FIG. 6 is another drawing showing the effect of the photocatalytic device according to the present invention, and FIG. 7 is a view showing the catalyst part of the photocatalytic device according to the present invention.

2 to 7, the photocatalytic device 100 according to the present invention includes a body 110, a catalyst part 120, and a light source part 130, as shown in FIGS.

The body 110 supports the catalyst unit 120 and the light source unit 130 and has a fixing unit 111 for fixing the vehicle air conditioning apparatus 1000 to the air conditioning case 300, In the air conditioning case 300 of FIG.

At this time, the shape of the fixing portion 111 can be variously configured to be fixed to the air conditioner case 300, and thus is not limited thereto.

The catalytic unit 120 is fixed to the body 110 and generates photocatalytic reaction by light emitted from the light source unit 130 to generate oxygen radicals.

The light source unit 130 includes a lower first light source unit 131 and a second upper light source unit 132. The first light source unit 131 irradiates light to the catalyst unit 120, .

That is, the light source unit 130 includes a pair of the first light source unit 131 and the second light source unit 132 spaced apart by the same distance in the vertical direction with respect to the catalyst unit 120, The first light source unit 131 and the second light source unit 132 can enhance the photocatalyst performance through the catalyst unit 120 according to the increase of the irradiated light by irradiating light in the vertical direction of the catalyst unit 120. [ (See Fig. 6)

Particularly, in order to reduce the cost in the manufacturing process of the photocatalyst apparatus, the size of the catalyst unit 120 is required to be reduced, which may cause a decrease in the performance due to the decrease of the photocatalyst quantity of the catalyst unit 120, Even if the size of the catalytic unit 120 is reduced through the light source unit 130 that irradiates light in both the up and down direction of the catalytic unit 120, the performance of the catalytic unit 100 can be compensated for. (See Fig. 5)

The photocatalytic device 100 according to the present invention having the structure of the body 110, the catalyst part 120, and the light source part 130 will be described in more detail.

The body 110 includes a catalyst accommodating portion 112, a first light source fixing portion 113, and a second light source fixing portion 114.

The catalyst accommodating portion 112 is a portion in which the catalyst portion 120 is accommodated and the air inside the air conditioning case 300 of the automotive air conditioner 1000 is guided to the catalyst portion 120 side by the catalyst portion 120 So as to be guided.

Particularly, a side surface (a direction in which air flows) of the catalytic portion 120 is formed to be exposed to the inside of the air conditioning case 300.

The catalyst receiving portion 112 may include a step portion (not shown) protruding inward to support the catalyst portion 120.

The catalyst supporting part 112 may be slidably coupled to the catalyst supporting part 120 such that the catalyst supporting part 120 can be detached from the catalyst supporting part 120, And detachable. Therefore, the present invention is not limited to the above.

The first light source fixing part 113 is fixed to the substrate 131b and the first LED part 132a of the first light source part 131 and is formed to be spaced apart from the lower side of the catalyst receiving part 112, The light emitted from the first LED unit 132a of the one light source unit 131 can be transmitted to the catalyst unit 120. [

At this time, the first LED unit 131a has at least one LED for emitting light.

The second light source fixing portion 114 is fixed to the second LED portion 132a of the second light source portion 132 and is spaced upward from the catalyst portion 120 of the catalyst accommodation portion 112, The second LED portion 132a has at least one LED for emitting light to the catalyst portion 120 in the same manner as the first LED portion 131a.

At this time, the second light source fixing part 114 is formed such that the first light source fixing part 113 is equally spaced upward by a distance apart from the catalyst part 120, as described above.

The second light source fixing part 114 includes a second light source extension part 114a extending upward from the body including the catalyst accommodating part 114a and a second light source extension part 114b formed at the end of the second light source extension part 114a The second light source part 132 and the catalytic part 120 may be disposed on the first light source part 132 and the second light source part 132b may be disposed on the second light source part 132, So that light can be irradiated.

The second light source extension part 114a may extend the distance from the catalyst part 120 to fix the second light source part 132, The second LED portion 132a of the second light source portion 132 is fixed to the lower portion 114b and the light is irradiated to the catalyst portion 120 of the lower direction.

In this case, the second light source extension part 114a is preferably formed as a columnar frame as shown in the figure so as not to obstruct the flow of air. The second light source extension part 114a has an angle of a quadrangular pyramid shape, .

However, it is needless to say that the configuration shown in the drawings is only one embodiment, and it is not limited to the above-described configuration, but various embodiments are possible without obstructing the flow of air.

The catalytic unit 120 generates a photocatalytic reaction by the light irradiated from the light source unit 130 and a contaminant introduced into the air conditioning case 300 by the oxidizing action of the oxygen radical generated in the photocatalytic reaction, 410 to remove fungi, various pollutants and odors.

More specifically, when the light emitted from the light source unit 130 is absorbed by the catalyst unit 120, the electrons of the valence band (VB), which is filled with electrons, absorb the light energy, I will jump to the Conduction Band (CB).

The hole, the empty electron spot of the valence band, oxidizes the water molecule on its surface, leaving it in its original state, and the oxidized water molecule forms the OH radical.

In addition, an excited electron, excited by a conduction band, reacts with oxygen to produce radicals with strong oxidizing power.

The catalytic part 120 of the photocatalytic device 100 according to the present invention includes a carrier 121 and a catalyst that is liquefied in a gel state by adding a cocatalyst and an acidic additive to the carrier 121 And a coating layer 122 to be fixed.

The support body 121 includes a plurality of pores therein. The support body 121 may have a variety of structures including a mesh, and may be formed of a material having metal or elastic characteristics.

The degree of porosity of the carrier 121 depends on the number of times the catalyst is carried, the permeability, and the permeability of the light emitted from the light source 130 when the carrier is composed of at least two layers, 121 increases in the catalyst content depending on the volume of the support body 121, and when the catalyst content is high, the contact interval between the catalyst and the ultraviolet light increases so that the generation of radicals increases.

Accordingly, it is preferable that the catalyst part 120 according to the present invention has at least one layer of the carrier 121 having a certain thickness, and the thickness is 5 to 50 mm.

In addition, the weight of the catalyst affects the radical generation performance depending on the additive and the type of catalyst and mixing ratio, and affects the photocatalytic reaction depending on the particle size of the titanium oxide.

The catalyst part 120 preferably has a carrier 121 having a porosity of at least 80% and a catalyst having a weight of 10% to 30% of the weight of the carrier 121 Do.

The light source unit 130 includes a first light source unit 131 and a second light source unit 132 that are fixed to the body 110 and emit ultraviolet light or visible light to the catalyst unit 120, LEDs (Light Emitting Diodes) formed on the first LED portion 131a and the second LED portion 132a and a substrate 131b on which the LEDs are fixed.

LED irradiates UVA (Ultra Violet-A) light or UVV (Ultra Violet-C) light having a wavelength of 400 nm or less when irradiating ultraviolet light, and solves the problem of mercury use which has been a problem in conventional mercury lamps Effective light irradiation is possible with small power.

UVA is advantageous in terms of cost because it is relatively inexpensive and effectively activates the photocatalytic reaction of the photocatalyst carrier.

UVC is relatively expensive but can act to activate the photocatalytic reaction and at the same time to perform its own sterilizing function to improve sterilization efficiency.

5 to 6, the photocatalyst apparatus 100 according to the present invention includes a light source unit 130 for irradiating light to the catalyst unit 120 in a vertical direction of the catalyst unit 130 It is possible to compensate for the decrease in performance even if the size of the catalyst unit 120 is reduced by irradiating light to the catalyst unit 130 including the first light source unit 131 and the second light source unit 132 which are equally spaced And the deodorization rate is also greatly increased.

FIG. 8 is a sectional view showing the mounting of the photocatalyst apparatus according to the present invention, and FIGS. 9 to 11 are views showing a vehicle air conditioner according to the present invention.

The vehicle air conditioning apparatus 1000 according to the present invention includes an air conditioning case 300, an evaporator 410, a heater core 420, and a photocatalyst device 100, as shown in Figs.

In the air conditioning case 300, the inflow air is transferred, and a vent 310 through which the air is discharged is formed, forming a space for mounting the evaporator 410 and the heater core 420.

More specifically, the air conditioning case 300 is formed with a vent 310 through which the temperature-controlled air is evaporated by the evaporator 410 and the heater core 420 into the vehicle interior.

The vent 310 includes a face vent, a defrost vent, and a floor vent.

Wherein the face vent discharges air to a front side (front seat) of a vehicle interior, the deprost vent discharges air toward a windshield of a vehicle interior, and the floor vent blows air toward a floor of a front seat of the vehicle And the face vent, the defrost vent, and the floor vent are adjusted in opening through respective mode doors 310d.

A fan 214 for blowing air may be provided on the air inlet side of the air conditioner case 300 and the indoor air inlet 211 and the outdoor air inlet 212 may be selectively And when the fan 214 is operated, the indoor air or the outside air is transferred to the air conditioner case 300 by opening and closing.

In more detail, the inside air inlet 211 communicates with the inside of the vehicle, so that the outside air inlet 212 communicates with the outside of the vehicle, and the outside air flows into the outside air inlet 212.

The inside / outside switching door 213 is provided inside the inflow duct to open / close the inside air inlet 211 and the outside air inlet 212. The inside / outside switching door 213 operates according to the setting of the vehicle occupant, Or the like are selectively introduced.

The evaporator 410 and the heater core 420 are disposed in the air flow direction so that the evaporator 410 and the heater core 420 can be cooled by the cooler Respectively.

The air conditioning case 300 is provided with a temperature control door 320 for determining the degree of the air passing through the evaporator 410 through the heater core 420.

In other words, the temperature control door 320 adjusts the opening degree of the air passage through which the air passed through the evaporator 410 passes through the heater core 420 and the air passage not passing through the heater core 420.

At this time, the photocatalyst device 100 has the above-described characteristics and is provided at the front side of the evaporator 410 in the air flow direction to sterilize and deodorize the evaporator 410. (See Fig. 9)

In addition, the photocatalyst device 100 is provided at the rear side of the evaporator 410 in the air flow direction to sterilize and deodorize the evaporator 410, and the oxygen radicals generated in the photocatalyst device 100 It is possible to introduce air into the interior of the vehicle and to clean the interior of the vehicle. (See Fig. 10)

The air conditioning apparatus 1000 of the present invention is mounted on one side of the air conditioning case 300 so that the photocatalytic device 100 can be easily attached and detached, And the air flow inside the air conditioner case 300 is prevented from being disturbed by the photocatalyst device 100.

Particularly, in order to fix the air conditioner case 300 and the photocatalytic device 100, a mounting hole 300a is formed in which a certain area of the air conditioner case 300 is hollow and closed by the body 110, A fixing portion 111 is formed on the body 110.

8, the fixing part 111 is hollow in a certain area, and a thread is formed in the hollow inner circumferential surface. The air conditioning case 300 is also hollow in a shape corresponding to the fixing part 111, And an example in which threads are formed on the hollow inner circumferential surface and fixed by separate fastening means.

The catalyst unit 120 is positioned inside the air conditioner case 300 with respect to the outer surface of the air conditioner case 300 and the first light source unit 113 is positioned inside the air conditioner case 300, (Not shown).

In the vehicle air conditioner 1000 of the present invention, the catalytic unit 130 for purifying the air is positioned inside the air conditioner case 300 to effectively purify the air, and the degree of protrusion into the air conditioner case 300 Thereby minimizing disturbance of airflow.

Further, the second light source fixing portion 114 is formed so as not to be disturbed by the air flow through the extension portion 114a, as described above, so as not to disturb the air flow.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: photocatalyst device
110: Body
111:
112: catalyst receiving portion
113: first light source fixing section
114: second light source fixing section
114a: second light source extension part 114b: second light source position part
120:
121: Carrier 122: Coating layer
130:
131: first light source part
131a: first LED portion 132b: substrate
132: second light source unit 132a: second LED unit
200: blower
211: Air inlet port 212: Outer air inlet
213: internal / external switching door 214: blowing fan
300: air conditioning case 300a: mounting hole
310: vent 310d: mode door
320: Temperature control door
410: Evaporator
420: heater core
1000: Car air conditioner

Claims (11)

A body 110;
A catalytic unit 120 which is fixed to the body 110 and generates photocatalytic reaction by light to generate oxygen radicals; And
A light source unit 130 including a lower first light source unit 131 and a second upper light source unit 132 for emitting light to the catalyst unit 120, ). ≪ / RTI >
The method according to claim 1,
The body (110)
A catalyst receiving portion 112 for fixing the catalyst portion 120,
A first light source fixing part 113 spaced downward from the catalyst receiving part 120 to fix the first light source part 131,
And a second light source fixing part (114) extending upward from the catalyst receiving part (112) and fixing the second light source part (132).
3. The method of claim 2,
The second light source fixing part 114
A second light source extension part 114a extending upward from the catalyst receiving part 112 and extending to penetrate the side surface,
And a second light source position part (114b) formed at an end of the second light source extension part (114a) and to which the second light source part (132) is fixed.
The method according to claim 1,
The catalyst portion 120
A carrier 121 having a porosity of 80% or more and a thickness of 5 mm to 50 mm, a cocatalyst and an acidic additive are added to the carrier 121 to form a coated coating layer 122, Wherein the photocatalyst is a photocatalyst.
The method of claim 3,
The catalyst portion 120
Wherein the catalyst has a weight of 10% to 30% with respect to the weight of the carrier (121).
An air conditioning case 300 in which a vent 310 through which air is discharged is formed by forming a space through which the introduced air is conveyed;
An evaporator 410 provided inside the air conditioning case 300;
A heater core 420 provided at a rear side of the air conditioning case 300 in the air flow direction; And
A vehicle air conditioning system comprising a photocatalyst device (100) according to any one of claims 1 to 5.
6. The method of claim 5,
The photocatalyst apparatus 100 includes:
Is installed on the front side of the evaporator (410) in the air flow direction.
6. The method of claim 5,
The photocatalyst apparatus 100 includes:
(410) in the direction of the air flow.
6. The method of claim 5,
The vehicle air conditioning system 1000 includes:
A mounting hole 300a is formed in which a certain area of the air conditioning case 300 is hollow and is closed by the body 110,
And a fixing part (111) for fixing the air conditioning case (300) to the body (110) is formed on the body (110).
10. The method of claim 9,
The photocatalyst apparatus 100 includes:
The catalytic unit 120 is positioned inside the air conditioner case 300 and the first light source unit 113 is positioned outside the air conditioner case 300 on the basis of the outer surface of the air conditioner case 300. [ (111) is protruded from the airbag.
6. The method of claim 5,
The vehicle air conditioning system 1000 includes:
Wherein the photocatalyst device (100) is mounted on one side of the air conditioner case (300).

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