KR20160036857A - Air conditioner for vehicle - Google Patents

Abstract

An air conditioner (1000) for a vehicle, according to the present invention, comprises a photocatalyst device (100) which is inserted and fixed into a mounting hole (210a) of a case (210, 300). The photocatalyst device (100) comprises: a first body (110) which has a fixing part (111) and a mounting part (112) fixed to the cases (210, 300); a light source part (120) which has an LED (121) and a substrate (122) and is fixed to the mounting part (112) of the first body (110); a catalyst part (140) which generates peroxyl radicals; a second body (130) which fixes the catalyst part (140) and is fixed to the first body (110); and a guide rib (150) which guides the air from the inner surface of the case (210, 300) to the exposed surface (F) of the catalyst part (140), or guides the air from the exposed surface (F) of the catalyst part (140) to the inner surface of the case (210, 300). Thus, the air conditioner (1000) for a vehicle minimizes noise and purifies the air flowing into the air conditioning case (300).

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioner for an automobile,

The present invention relates to a vehicle air conditioner, and more particularly, it relates to a vehicle air conditioner capable of minimizing occurrence of noise that can be formed by protruding the photocatalyst device inside the case by using a guide rib, And an air conditioner for sterilizing and deodorizing an evaporator.

An air conditioner for a vehicle includes an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, A heater core for the heating action, and air blown or heated by the evaporator or the heater core are selectively blown to respective portions of the vehicle interior using a blowing mode switching door.

On the other hand, not only the vehicle penetration rate is continuously increased but also the time in which the user is inside the vehicle is increasing, so research for maintaining the comfort inside the vehicle is continuing. However, since the interior of the vehicle is narrow and airtight and is susceptible to contamination, contamination of the interior of the vehicle is further increased due to fine dust and various pollutants in the city, and recently, a vehicle air purification apparatus for purifying indoor air of a vehicle has been developed .

As one example, Japanese Patent Application No. 2549032 (May 30, 1997), which was previously filed, discloses a cooling apparatus having 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 first body 20 and includes an outside air inlet 21 and an inside air inlet 22 And an intake door 23 for selectively opening and closing the intake door 23 are 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 cools the air by exchanging heat with air passing therethrough. 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 ultraviolet lamp 29 is disposed between the evaporator 26 and the photocatalytic filter 27. The downstream side of the photocatalytic filter 27 is provided with a metal catalyst filter 34 for removing ozone contained in the flowing air. 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.

However, in the conventional air conditioner with a deodorizer for automobiles, since the ultraviolet lamp 29 used as a light source of photocatalyst contains mercury therein, mercury is harmful to the human body and can not be applied to vehicles due to various environmental requirements There was a problem. In addition, the photocatalytic filter 27 is installed downstream of the evaporator 26 to adsorb and deodorize the odor generated in the evaporator 26, thereby causing a problem in that the filter must be replaced due to a decrease in the amount of dust overflow. 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.

Japanese Patent Publication No. 2549032 (May 30, 1997)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a photocatalytic device which can minimize the generation of noise that can be formed by protruding the photocatalytic device inside the case, The present invention provides a vehicle air conditioner capable of sterilizing and deodorizing an evaporator while purifying the air flowing into the inside.

The vehicle air conditioning system according to the present invention includes a case having a hollow mounting hole formed therein and a photocatalytic device inserted and fixed in a mounting hole of the case, wherein the photocatalytic device includes a fixing part fixed to the case, A first body having a seating portion formed concavely in an outward direction of the case; A light source unit including an LED and a substrate on which the LED is fixed, the light source being irradiated with ultraviolet (UV) light and fixed to a seating portion of the first body; A catalytic unit that generates photocatalytic reaction by light emitted by the light source unit to generate oxygen radicals; A second body fixed to the first body to fix the catalyst part such that one surface of the catalyst part is exposed to the inside of the case; And a guide rib guiding air from an inner surface of the case to an exposed surface of the catalytic portion or guiding air from the exposed surface of the catalytic portion to the inner surface of the case at a second body periphery of the photocatalytic device. That is, since the guide rib is formed in the automotive air conditioner of the present invention, the photocatalyst device can minimize the generation of noise that can be formed by protruding to the inside of the case, purify air introduced into the air conditioner case, sterilize the evaporator And can be deodorized. Also, since the first body and the second body are provided with the light source and the catalyst, the first body and the second body can be easily manufactured and the first body can be fixed to the casing of the air conditioner. At this time, the first body is formed with a recessed portion on which the light source unit is seated to stably support the light source unit, and the LED of the light source unit can irradiate light to the entire catalyst unit.

In addition, the automotive air conditioner may further include a sealing member between the case and the first body to prevent whistling noise from being generated through the clearance of the mounting hole for mounting the photocatalytic device.

At this time, the catalytic device and the second body of the photocatalytic device may be located in the case through the mounting hole, and the photocatalyst device may be fixed to the exposed surface of the catalytic component from the inner surface of the case by inclining A part of the catalyst part and the second body may be positioned inside the case through the mounting hole.

According to another aspect of the present invention, there is provided a vehicular air conditioning system including a case having a hollow mounting hole formed therein and a photocatalytic device inserted and fixed to a mounting hole of the case, wherein the photocatalytic device is fixed to the case A first body formed with a fixing part for fixing the first case and a seating part formed concavely outwardly of the case; A light source unit including an LED and a substrate on which the LED is fixed, the light source being irradiated with ultraviolet (UV) light and fixed to a seating portion of the first body; A catalytic unit that generates photocatalytic reaction by light emitted by the light source unit to generate oxygen radicals; And a second body fixed to the first body to fix the catalyst part such that one side of the catalyst part is exposed to the inside of the case, and the vehicle air conditioner includes a second body fixed to the first body such that the exposed surface of the catalyst part is inclined A part of the catalyst part and the second body is located inside the case through the mounting hole. As a result, the air conditioning apparatus of the present invention has an advantage that air flowing inside the case can be easily cleaned while moving along the exposed surface of the catalyst portion, and air flow is smoothly performed to minimize noise generation .

Accordingly, by using the guide ribs, the vehicle air conditioner of the present invention can minimize the generation of noise that can be formed by projecting the photocatalytic device inside the case, and purify the air introduced into the air conditioner case, It is possible to sterilize and deodorize.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional air-cooling apparatus with a deodorizer for an automobile. FIG.
2 to 4 are a schematic view, a perspective view, and a partial perspective view showing a vehicle air conditioning apparatus according to the present invention.
5 to 7 are a perspective view, an exploded perspective view, and a sectional view showing a photocatalytic device of a vehicle air conditioner according to the present invention.
8 is a view showing a catalyst part of a vehicle air conditioner according to the present invention.
9 is another cross-sectional view of a vehicle air conditioning system according to the present invention.
10 is another sectional view of a vehicle air conditioner according to the present invention.

Hereinafter, a vehicle air conditioning apparatus 1000 according to the present invention having the above-described features will be described in detail with reference to the accompanying drawings.

2 to 4 are a schematic view, a perspective view, and a partial perspective view showing the automotive air conditioner 1000 according to the present invention, and FIGS. 5 to 7 show a photocatalytic device 100 of the automotive air conditioner 1000 according to the present invention. An exploded perspective view and a cross-sectional view of the catalytic unit 140 of the automotive air conditioner 1000 according to the present invention.

The automotive air conditioner 1000 of the present invention includes cases 210 and 300 having mounting holes 210a on which the photocatalyst device 100 is mounted and a photocatalyst device 100. [

The photocatalyst device 100 is fixed to the air blowing case 210 or air conditioning case 300 of the automotive air conditioner 1000 by the fixing portion 111 of the first body 110 to purify air supplied to the vehicle interior The specific configuration will be described below again.

The case 210 and 300 in which the photocatalyst 100 is mounted are the air blowing case 210. However, the present invention is not limited thereto, and the evaporator 410 and the heater core 420 Or may be an air conditioning case 300 provided. The air conditioning apparatus 1000 according to the present invention is provided with the photocatalyst 100 on the front side of the evaporator 410 provided inside the air conditioner 1000 to sterilize and deodorize the evaporator 410 .

The vehicle air conditioner 1000 includes an air blowing device 200 including an inlet duct, an inside / outside switching door 213, a blowing fan 214 and a blowing case 210, And an air conditioning case 300 in which components for controlling the air conditioner 300 are installed.

The inflow duct is formed with an inflow inlet 211 and an inflow inlet 212, respectively. The inside air inlet 211 communicates with the inside of the vehicle, and the outside air inlet 212 communicates with the outside of the vehicle, so that outside air flows into the outside air inlet 212.

The inside / outside switching door 213 is provided inside the inlet duct to open / close the inside air inlet 211 and the outside air inlet 212. The inside / outside switching door 213 is operated in accordance with the setting of the vehicle occupant to control the outside air or the inside air to be selectively introduced.

The blowing fan 214 blows air or outside air forcibly.

The air blowing case 210 has one side connected to the inlet duct and the other side connected to the inlet side of the air conditioning case 300, and a blowing fan 214 is provided therein. More specifically, the air blowing case 210 includes a fan mounting portion connected to the inlet duct and on which the blowing fan 214 is mounted, and a fan mounting portion extending from the periphery of the fan mounting portion and connected to the inlet side of the air conditioning case 300 And a connection portion.

The air conditioning case 300 is connected to an air inlet and an air blowing case 210 so that air is introduced into the air conditioning case 300. An evaporator 410 and a heater core 420 are provided in the air conditioning case 300, And is supplied to the passenger compartment through a plurality of vents 310. In this case, generally, the evaporator 410 is cooled by the cooling of the refrigerant, and the heater core 420 heats the heated air. 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. The ventilation 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 to the interior of the vehicle. The vent 310 includes a face vent 310, a defrost vent 310, and a floor vent 310. The face vent 310 discharges air to the front side (front seat) of the vehicle interior. The defrost vent 310 discharges air toward the windshield of the vehicle interior, and the floor vent 310 The face vent 310, the defrost vent 310, and the floor vent 310 are adjusted in opening through respective mode doors 310d.

The photocatalyst apparatus 100 includes a first body 110, a light source 120, a catalyst unit 140, and a second body 130.

The first body 110 together with the second body 130 constitutes a basic body of the photocatalytic device 100 and is formed with a fixing part 111. 6 and 7, the fixing portion 111 is fixed to the case 210, 300 (the air conditioning case 300 or the air blowing case 210) of the air conditioner 1000, The vehicle air conditioner 1000 according to the present invention is not limited to the fixing unit 111 but may be mounted on the case 210 or 300 of the air conditioner 1000, Or the like. The description of fixing with the second body 130 will be described below again.

The first body 110 has a recess 112 in which the light source unit 120 is seated and the light emitted from the light source unit 120 (LED 121) It is preferable to uniformly irradiate the light-emitting layer 140 with the light-emitting layer.

The light source part 120 is a part fixed to the first body 110 and includes a light emitting diode 121 and a substrate 122 to which the LED 121 is fixed, UV) light. The LED 121 irradiates UVA (Ultra Violet-A) light or UVV (Ultra Violet-C) light having a wavelength of 400 nm or less and solves the problem of mercury use which has been a problem in conventional mercury lamps, Effective light irradiation is possible. In this case, UVA is advantageous in cost because it is relatively inexpensive and effectively activates the photocatalytic reaction of the photocatalyst carrier. In addition, UVC is relatively expensive but can act to activate the photocatalytic reaction, and at the same time, perform sterilizing function on its own to improve sterilization efficiency. The light source unit 120 may have one LED 121 or two or more LEDs 121 corresponding to the size of the catalyst unit 140. Of course, when two or more of the LEDs 121 are provided, all the LEDs 121 that emit UVA (Ultra Violet-A) and UVC (Ultra Violet-C) may be provided.

The light source unit 120 may further include a structure for emitting heat generated from the LED 121 and the substrate 122.

7 shows an example in which the heat dissipating unit 123 is provided on the opposite side of the substrate 122 provided with the LED 121. The first body 110 has the seating part 112, A hollow portion 113 is formed in which a certain region of the heat dissipating portion 123 is hollow and the heat dissipating portion 123 is inserted and protruded to the outside. That is, the heat dissipating unit 123 protrudes to the outside through the hollow portion 113 of the first body 110 to easily discharge heat.

The catalytic unit 140 generates photocatalytic reaction by the light irradiated by the light source unit 120 to generate oxygen radicals. The catalytic unit 140 generates a photocatalytic reaction by the light irradiated from the light source unit 120 and oxidizes the over-radical radical generated in the photocatalytic reaction, , Fungi in the evaporator (410), various contaminants and odors. More specifically, when the light emitted from the light source unit 120 is absorbed by the photocatalyst, electrons of a valence band (VB) filled with electrons absorb the light energy, and a conduction band (CB) ). Hole, the empty electron spot of the valence band, oxidizes the water molecules on the surface, and the oxidized water molecules form OH radicals. In addition, an excited electron, excited by a conduction band, reacts with oxygen to produce a strong oxidizing oxygen radical.

Meanwhile, the catalyst unit 140 may include a support layer 141, a coating layer 142 supported by coating a catalyst liquefied in a gel state by adding a co-catalyst and an acidic additive to the support 141 have. (See FIG. 8) The support body 141 may be formed of various structures including a mesh, and may be made of a material having metal or elastic properties.

As the catalyst, titanium oxide particles having a particle size of 10 nanometers to 60 nanometers are formed, and the surface area value of the titanium oxide particles is formed to be 330 m ² / g or more. More specifically, titanium oxide (TiO ₂ ) used as a photocatalyst receives ultraviolet rays of 400 nm or less to generate oxygen radicals, and the produced oxygen radicals decompose organic substances into safe water and carbon dioxide. The titanium oxide is nanoparticles, and a large amount of oxygen radicals can be produced even by using a light source having a relatively weak ultraviolet wavelength. Therefore, it has excellent decomposing ability of organic matter, has persistent durability and stability against environmental change, and has a semi-permanent effect. In addition, a large amount of oxygen radical can remove various substances such as odors, bacteria and the like as well as organic substances. Since the catalytic portion 140 has a surface area of nanometer-sized titanium oxide of 330 m ² / g or more, the number of particles that receive light energy per unit area is much larger than that of ordinary titanium oxide, .

At this time, the co-catalyst may be alumina. In this case, the supporting force of the catalyst part 140 can be further improved and the fixing ability of the carrier 141 can be increased.

An example of the manufacturing process of the catalytic portion 140 is as follows. After titanium oxide is granulated at a high temperature of 10 to 60 nanometers through a calcination and a normal temperature drying process, a catalyst composed of alumina is added Process liquid. Thereafter, the liquid phase is secondarily processed in accordance with the intended use, is carried on the carrier 141, and is fixed to the carrier 141 through the secondary drying and firing process.

The photocatalyst device 100 has a structure that generates oxygen radicals by photocatalytic reaction using the light source unit 120 and the catalytic unit 140. The photocatalyst apparatus 100 is similar to the conventional structure for adsorbing and deodorizing polluted air containing odor Therefore, there is no need to separately replace the filter, and there is an advantage that it can be used semi-permanently through selection of the type of carrier or proper on / off control of the light source unit 120.

The second body 130 is formed such that one side of the catalyst part 140 is exposed to the interior of the catalyst part 140 so as to surround the corner of the catalyst part 140 do. The photocatalyst device 100 has a simple structure in which the light source unit 120 and the catalytic unit 140 can be fixed inside by assembling the first body 110 and the second body 130, It is advantageous in that the composition can be increased. In this case, the first body 110 and the second body 130 may be assembled by various methods. For example, the first body 110 may have a fastening hole 114 formed therein, 2, a fastening hook 131 may be formed on the body 130 to be inserted into the fastening hole 114. The fastening hook 131 can be inserted into the fastening hole 114 but can not be separated from the fastening hole 114 and can be easily fixed to the first body 110 by a pushing force of the second body 130 There are advantages to be able to.

The guide rib 150 guides air from the inner surfaces of the cases 210 and 300 to the exposed surface F of the catalytic portion 140 on the periphery of the second body 130 of the photocatalyst 100, Air is guided from the exposed surface (F) of the catalyst part (140) to the inner surface of the case (210, 300). 4 to 6, the catalytic unit 140 and the second body 130 of the photocatalytic device 100 are entirely inserted through the mounting holes 210a of the case 210, 210 and 300 and four guide ribs 150 are formed so as to surround the entire circumferential surface of the second body 130. However, One or more ribs 150 may be formed. Accordingly, the vehicle air conditioning apparatus 1000 of the present invention has advantages that the generation of noise that can be formed by protruding the inside of the case 210, 300 by the photocatalytic device 100 is minimized by forming the guide rib 150 . The guide rib 150 may be attached or fixed to the second body 130 as a separate member or may be integrally formed with the second body 130.

9 is another cross-sectional view of a vehicle air conditioner 1000 according to the present invention. The automotive air conditioner 1000 may further include a sealing member 160 between the case 210 and the first body 110. The sealing member 160 prevents noise from being generated when air is leaked when fine gaps are formed between the mounting holes 210a of the cases 210 and 300 and the photocatalyst 100. [ 9, a sealing member mounting portion 161 may be further formed on the inner circumferential surface of the mounting hole 210a of the case 210, 300 so that the sealing member 160 may be provided.

10 is another cross-sectional view of the automotive air conditioner 1000 according to the present invention. A part of the catalytic unit 140 and the second body 130 are inserted into the case 210 and 300 through the mounting hole 210a and the case 210 The exposed surface F of the catalytic unit 140 can be inclined from the inner surface. That is, the exposed surface F of the catalytic unit 140 forms an inclined surface with respect to the inner surfaces of the cases 210 and 300, so that air moving along the inner surfaces of the cases 210 and 300 flows into the catalytic unit 140, Can be guided directly to the exposed surface (F) of the air bag, and can effectively purify the airflow. Also in this case, the guide ribs 150 may be formed on the surface of the inserted second body 130.

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.

1000: Car air conditioner
100: photocatalyst device
110: first body
111:
112: seat part 113: hollow part
114: fastening hole
120: Light source
121: LED 122: substrate
123:
130: second body 131: fastening hook
140:
141: Carrier 142: Coating layer
F: Exposed surface of the catalyst part
150: guide rib
160: sealing member
161: Sealing member mounting portion
200: blower
210: air blowing case 210a: mounting hole
211: Air inlet port 212: Outer air inlet
213: internal / external switching door 214: blowing fan
300: Air conditioning case
310: vent 310d: mode door
320: Temperature control door
410: Evaporator
420: heater core

Claims (5)

A vehicle air conditioning system comprising a case having a hollow mounting hole formed therein and a photocatalyst device inserted and fixed to a mounting hole of the case,
The photocatalytic device
A first body having a fixing part fixed to the case and a seating part formed concavely in an outward direction of the case;
A light source unit including an LED and a substrate on which the LED is fixed, the light source being irradiated with ultraviolet (UV) light and fixed to a seating portion of the first body;
A catalytic unit that generates photocatalytic reaction by light emitted by the light source unit to generate oxygen radicals;
A second body fixed to the first body to fix the catalyst part such that one surface of the catalyst part is exposed to the inside of the case; And
And a guide rib for guiding air from the inner surface of the case to the exposed surface of the catalyst portion or guiding air from the exposed surface of the catalyst portion to the inner surface of the case at the second body periphery of the photocatalytic device. Device.
The method according to claim 1,
Wherein the vehicle air conditioner further comprises a sealing member between the case and the first body.
The method according to claim 1,
Wherein the catalyst part and the second body of the photocatalytic device are all located inside the case through the mounting hole.
The method according to claim 1,
Wherein a part of the catalyst part and the second body are positioned inside the case through the mounting hole so that the photocatalyst device fixes the exposed surface of the catalyst part in an inclined manner from the inner surface of the case. .
A vehicle air conditioning system comprising a case having a hollow mounting hole formed therein and a photocatalyst device inserted and fixed to a mounting hole of the case,
In the photocatalytic device,
A first body having a fixing part fixed to the case and a seating part formed concavely in an outward direction of the case;
A light source unit including an LED and a substrate on which the LED is fixed, the light source being irradiated with ultraviolet (UV) light and fixed to a seating portion of the first body;
A catalytic unit that generates photocatalytic reaction by light emitted by the light source unit to generate oxygen radicals; And
And a second body fixed to the first body to fix the catalyst part such that one side of the catalyst part is exposed to the inside of the case,
Wherein a part of the catalytic unit and the second body are positioned inside the case through the mounting hole so that the exposed surface of the catalytic unit is inclined from the inner surface of the case.

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