KR101509903B1 - Evaporator core sterilizer using UV LED - Google Patents

Abstract

The present invention relates to an apparatus for sterilizing bacteria and fungi deposited on an evaporator core of an air conditioner with an UV LED.
The present invention can disinfect the evaporator core directly by disposing UV LEDs on the front and rear sides of the evaporator core, and in particular, it is possible to secure a proper irradiation distance by applying the UV LED irradiation method of the yarn link type to the back side of the evaporator core It is possible to maximize the sterilizing effect by sterilizing the surface of the evaporator as well as the air by implementing the bacterial / fungus sterilizing device of the shape of the evaporator core and using the UV LED which can sterilize the entire evaporator core Thereby providing a sterilizing device.

Description

[0002] Evaporator core sterilizer using UV LED [

The present invention relates to an apparatus for sterilizing an evaporator core using an UV LED, and more particularly, to an apparatus for sterilizing bacteria and fungi deposited on an evaporator core of an air conditioner with a UV LED.

Generally, the vehicle is provided with an air conditioning system that allows the driver to keep the interior of the vehicle in the most comfortable state in consideration of the climatic conditions and the like.

Such an air conditioning system is equipped with a cooling unit including a heating unit including a heater for warming the room in the winter season, and an air conditioner for keeping the room cool during the summer.

Here, the cooling unit of the air conditioning system includes an evaporator for generating cold air. When the cooling unit is operated, water droplets are generated in the evaporator due to the temperature difference with the air to be heat-exchanged, and this is adsorbed on the surface of the evaporator It becomes damp.

As a result, the evaporator is in an optimal state in which fungi and bacteria can live. As a result, there is a problem that a harmful substance produced by fungus and bacteria is blown in the vehicle interior, resulting in an unpleasant odor.

That is, when the air conditioner is operated with the greatest number of consumer complaints about the air conditioning system, the air conditioner of the air conditioner, in which the driver or the passenger feels very uncomfortable, is defenseless.

The fundamental cause of such odor is that the air conditioner is provided with an appropriate condition for propagating / propagating the infecting fungus, so that the fungus grows not only in the vicinity of the evaporator but also in the air conditioning system, There is a problem that a bad odor, a headache, and an uncomfortable feeling are caused when a passenger is sucked into the room.

In view of the above points, Korean Unexamined Patent Publication No. 10-2004-0008281, Korean Unexamined Patent Publication No. 10-2011-0009386, Japanese Unexamined Patent Publication No. 11-198640, Japanese Unexamined Patent Publication No. 11-198633, Japanese Unexamined Patent Publication No. 24- 158320 discloses various types of devices for removing bacteria / fungi that cause odors.

For example, Japanese Unexamined Patent Publication (Kokai) No. 24-158320 discloses an " air conditioner " for removing mold by using a light source, a light guide plate, and a photocatalyst.

5, the "air conditioner" is provided with a light guide plate 110 on the front surface of the evaporator core 100, a UV light source 120 on one side of the light guide plate 110, (100) is coated with a photocatalyst (titanium).

Therefore, when the photocatalyst of the evaporator core is reacted with UVA, active oxygen is generated on the surface of the evaporator core coated with the photocatalyst, and reactive oxygen is reacted with the odorous substance to neutralize the deodorant.

However, in such a case, the photocatalyst is difficult to be applied simultaneously with the evaporator core coating (hydrophilic and antibacterial), so there is a risk of odor due to moisture, and since the deodorizing action occurs only on the surface, there is a disadvantage that the working range is narrow. There is a drawback that the effect is insufficient.

In addition, since the light is dispersed in the light guide plate and reacted with the photocatalyst of the evaporator core, the energy loss of the ultraviolet ray is generated due to the efficiency and dispersion of the light guide plate, and the chemical reaction is reduced.

As described above, the above-mentioned " air conditioner " is a technique using photocatalyst and UV, and focuses on deodorizing function rather than sterilization, and it is difficult to simultaneously apply the evaporator core hydrophilic / antibacterial coating,

In addition, it acts only on the surface of the catalyst, making it impossible to deodorize in the air, and the light guide plate is a light dispersion technique applied to the illumination, which is ineffective in a chemical reaction in which light energy is important.

In view of the above, it is an object of the present invention to provide a method and apparatus for disinfecting an evaporator core by disposing UV LEDs on the front and back sides of an evaporator core, It is possible to sterilize the surface of the evaporator as well as the air as well as to maximize the sterilizing effect and to provide the evaporator core An object of the present invention is to provide an evaporator core sterilizing apparatus using a UV LED capable of sterilizing the entire body.

In order to accomplish the above object, the present invention provides an evaporator core sterilizer using UV LED as follows.

The apparatus for sterilizing an evaporator core using the UV LED has UV LEDs, for example, UVC type LEDs disposed on the front and back sides of the evaporator core, respectively, to directly irradiate light emitted from the UV LED toward the front and back sides of the evaporator core, The structure of the evaporator core surface as well as bacteria and fungi in the air can be sterilized.

Therefore, the apparatus for sterilizing the core of the evaporator using the UV LED is characterized by maximizing sterilization effect by sterilizing the evaporator core directly by applying UV LED.

The UV LED disposed on the rear side of the evaporator core may include a plurality of fixed type UV LEDs capable of covering an entire area of the rear portion of the evaporator core or a plurality of UV LEDs mounted on the TEM door, Type UV LED.

The trunk link type UV LEDs may be formed of four links connected to each other in a pin structure. For example, the trunk link type UV LED may include a first link fixed to a hinge portion of a tempo door, and a second link fixed to the front end side of the tempo door And a combination of a third link and a fourth link which are arranged along both sides of the TEMP door and which connect both ends between the first link and the second link.

At this time, in the case of the trunnion link type UV LED, the trunk link type may have a trapezoidal shape in which the length of the second link is shorter than the length of the first link.

The apparatus for sterilizing an evaporator core using the UV LED provided in the present invention has the following advantages.

First, by applying the UV LED (UVC type) directly to the evaporator core, the sterilizing effect can be maximized.

Secondly, sterilization of microorganisms in the air is also possible, so it is possible to broaden the sterilization range compared with the photocatalyst.

Third, there is no reduction in efficiency by directly irradiating the light emitted from the LED.

Fourth, the evaporator core can be completely sterilized by applying the LED light irradiation device of the truncated link type to the rear part of the evaporator core where the proper irradiation distance is insufficient.

Fifth, by operating the trimming link type LED illuminating device in conjunction with the opening and closing operation of the tempdoor, it is possible to reduce the material cost by eliminating the separate actuator.

1 is a side view showing an evaporator core sterilizing apparatus using a UV LED according to a first embodiment of the present invention;
2 is a side view showing an evaporator core sterilizing apparatus using a UV LED according to a second embodiment of the present invention
FIG. 3 is a perspective view showing a truncated-link-type LED illuminating apparatus in an evaporator core sterilizing apparatus using a UV LED according to a second embodiment of the present invention;
4 is a side view showing an operation state of the truncated-link-type LED illuminating device in the evaporator core sterilizing device using the UV LED according to the second embodiment of the present invention
5 is a side view showing an air conditioning system of a UV deodorization system using a conventional photocatalyst

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view showing an evaporator core sterilizing apparatus using a UV LED according to a first embodiment of the present invention.

As shown in FIG. 1, the apparatus for sterilizing an evaporator core using the UV LED is a system for sterilizing microorganisms in the air of the evaporator core and its surroundings by irradiating UV LED directly on the evaporator core side, thereby maximizing sterilizing effect without energy loss .

For this purpose, UV LEDs 11 and 12 fixed to the main body side are disposed on the front and rear sides of the evaporator core 10 installed in the air conditioning system main body 17, and the respective UV LEDs 11, 12 can directly irradiate the UV LED light toward the front and rear portions of the evaporator core 10 while maintaining a certain distance from the evaporator core 10. [

Here, in the case of direct disinfection, an appropriate irradiation distance (about 80 mm) must be ensured so that the entire evaporator core can be sterilized.

Accordingly, in the case of the UV LED 11 disposed on the front side of the evaporator core 10 and irradiating light to the front portion thereof, an appropriate irradiation distance during direct sterilization, for example, a distance of about 80 mm from the front surface of the evaporator core So that it is possible to apply about one position located on the center line of the front face of the evaporator core.

That is, when setting the HVAC layout, it is possible to secure a distance of about 80 mm between the UV LED and the evaporator core, so that only about one UV LED is enough to sterilize the entire surface of the front face of the evaporator core.

In the case of the UV LED 12 disposed on the rear side of the evaporator core 10 for irradiating light to the rear portion, it is difficult to secure an appropriate irradiation distance for direct sterilization (only about 40 mm can be secured in the HVAC layout setting ), It is preferable to apply a plurality of UV LEDs at this time.

To this end, the UV LED 12 disposed on the rear side of the evaporator core 10 can be made up of a plurality of fixed type UV LEDs 12a capable of covering the entire area of the rear portion of the evaporator core 10.

For example, the rear portion of the evaporator core 10, which is short of the proper irradiation distance, has about 4 UV LEDs, and each UV LED is arranged in such a manner that the entire area of the evaporator core covers about 1/4 , The entire rear surface of the evaporator core can be sterilized.

As described above, the UV LEDs 11 and 12 disposed on the front and rear sides of the evaporator core 10 can be used to directly sterilize the evaporator core 10 and sterilize microorganisms in the air, Not only maximization but also sterilization range can be widened.

FIG. 2 is a side view illustrating an evaporator core sterilizer using UV LEDs according to a second embodiment of the present invention. FIG. 3 is a cross-sectional view of an evaporator core sterilizer using UV LED according to a second embodiment of the present invention. Fig.

As shown in Figs. 2 and 3, here, an example in which the truncated link-type UV LED 12b is applied as a means for sterilizing the rear surface of the evaporator core 10 is shown.

A UV LED 11 fixed to the air conditioning system main body 17 is disposed in front of the evaporator core 10 and the UV LED 11 is disposed at a predetermined distance from the evaporator core 10, The UV LED light can be directly irradiated toward the front side of the display unit 10.

Here, the UV LED 11 disposed in front of the evaporator core 10 and irradiating light to the front part can maintain a suitable irradiation distance at the time of direct sterilization, for example, a distance of about 80 mm from the front surface of the evaporator core , One UV LED located on the center line of the front face of the evaporator core can be applied.

In particular, the UV LED 12 disposed on the rear side of the evaporator core 10 is made of the truncated-link type UV LED 12b.

At this time, the yarn link type UV LED 12b is mounted on the TEMP door 13, and the irradiation direction can be controlled while the angle is changed in conjunction with the opening / closing operation of the TEMP door 13. [

That is, in the case of disinfection of the rear part of the evaporator core where the proper irradiation distance is insufficient, it is possible to cover a sufficient sterilization area with only one UV LED through the irradiation direction control of the yarn link.

For this purpose, the trunnion link type UV LEDs 12b are connected to each other by four connecting links 14a to 14b, which are connected to each other by a pin connection structure, that is, a hinge structure using pins, while forming a rectangular frame shape (substantially a trapezoidal frame shape) .

For example, the trunnion link type UV LED 12b includes a first link 14a fixed to the main body side at a side having a hinge portion serving as a rotation center shaft of the tempo door 13, A third link 14c which is disposed along the upper surface and the lower surface of the first link 14a and has both ends interposed between the first link 14a and the second link 14b with the tempo door 13 interposed therebetween, And the fourth link 14d are combined with each other.

That is, the trunnion link type UV LED 12b is arranged to be parallel to the longitudinal direction of the tamper door 13 at a position about the middle of the left and right length of the tempo door 13, and the trunnion link type UV LED 12b 12b can be positioned over the groove 16 formed in the tempo door 13. [

Accordingly, the trunnion link type UV LED 12b can move together with the opening and closing of the TEMP door 13.

That is, the second link 14b, the third link 14c, and the fourth link 14d move together with the door with the first link 14a serving as a support when the TEMP door 13 is opened and closed, As a result of this movement, the linking motion of the trimming link is performed, so that the irradiation direction of the UV LED can be controlled at various angles.

An LED 15, which emits light substantially, is mounted on the front surface of the second link 14b.

The length of the second link 14b constituting the trunnion link type UV LED 12b has a length shorter than the length of the first link 14a so that the trunnion link type UV LED 12b is totally It can be made of a trumpet-type trimming link type.

Meanwhile, the LEDs applied to the UV LED 11, the fixed type UV LED 12b and the truncated link type UV LED 12b are made of UVC type LEDs.

As shown in Table 1 below, the UVC type LED has a strong sterilizing power and durability (conventional ultraviolet lamps are difficult to apply to vehicles due to lack of durability), the irradiation angle (130 °) It is possible to sterilize the entire area of the evaporator core.

Table 1

FIG. 4 is a side view showing an operation state of a truncated-link type LED illuminator in an evaporator core sterilizer using UV LED according to a second embodiment of the present invention.

4, when the air conditioner is used, the TEMP door 13 is oriented downward. At this time, the yarn link type UV LED 12b is also moved downward together with the TEMP door 13, The LEDs 15 on the LED 12b will sterilize the upper side of the evaporator core 10.

When the air conditioner is not used, the TEMP door 13 faces upward, and the yarn link type UV LED 12b at this time is also moved upward together with the TEMP door 13, and the yarn link type UV LED 12b The LED 15 is sterilized on the lower side of the evaporator core 10.

Here, the trapezoidal refraction link controls the UV LED irradiation direction in the direction opposite to the traveling direction of the link.

That is, the second link rotates in the opposite direction with respect to the direction in which the third link and the fourth link rotate, so that the LED in the second link at this time is controlled in the direction opposite to the link advancing direction .

As described above, the UV LED irradiation direction can be controlled in the direction opposite to the direction of the temp door, so that the entire evaporator core can be sterilized, so that ultraviolet rays can be emitted to a narrow space in the main body of the air conditioning system.

Therefore, by applying the trapezoidal refractory link to the rear portion of the evaporator core, sterilization of the entire evaporator core can be realized with one LED even if the layout of the air conditioning system is insufficient.

Further, by operating simultaneously with the tempo door, no separate control actuator is required.

As described above, the evaporator core sterilizer using the UV LED of the present invention can sterilize the evaporator core by directly irradiating ultraviolet rays by applying the UVC type LED, and in particular, the rear portion of the evaporator core is equipped with a diaphragm link Since the whole of the evaporator core can be sterilized by one LED at a distance, the sterilizing effect can be maximized and the sterilization range can be widely secured.

10: Evaporator core 11, 12: UV LED
12a: Fixed type UV LED 12b: Trunnion link type UV LED
13: Temp door 14a-14d: Link
15: LED 16:
17: Air conditioning system main body

Claims (6)

The UV LEDs 11 and 12 are disposed on the front side and the rear side of the evaporator core 10 to directly irradiate light emitted from the UV LEDs 11 and 12 toward the front and back sides of the evaporator core 10, It can sterilize airborne bacteria and fungi as well as the core surface,
The UV LED 12 disposed on the rear side of the evaporator core 10 is composed of a yarn link type UV LED 12b mounted on the tempo door 13 and controlled in irradiation direction while being linked with the door opening / closing operation Evaporator core sterilizer using UV LED.
The method according to claim 1,
Wherein the UV LED 12 disposed on the rear side of the evaporator core 10 comprises a plurality of fixed type UV LEDs 12a capable of covering an entire area of the rear portion of the evaporator core 10. [ Evaporator core sterilization device.
delete The method according to claim 1,
The trunk link type UV LED 12b includes four links 14a to 14b connected to each other in a pin structure and includes a first link 14a fixed to the hinge portion of the TEMP door 13, And a second link 14b disposed on the front end side of the tempo door 13 and having opposite ends 15a and 15a and a second link 14b disposed on both sides of the tempo door 13, And a third link (14c) and a fourth link (14d) connecting the first link (14a) and the second link (14b).
The method of claim 4,
Wherein the trimming link type UV LED (12b) is formed of a trumpet-type truss link type in which the length of the second link (14b) is shorter than the length of the first link (14a).
The method according to any one of claims 1, 2, 4, and 5,
Wherein the UV LEDs (11, 12) comprise UVC type LEDs.

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