KR20090088032A - A air-cleaning device for evaporator of vehicle - Google Patents

Abstract

An evaporator sterilizing device of a vehicle air-cleaning system using an ultra-violet lamp is provided to check the operation or malfunction of the ultra-violet lamp through the notice lamp. An evaporator sterilizing device of a vehicle air-cleaning system comprises a start sensing unit(160), an ultra-violet lamp(130), a temperature sensor(140), a mode switch(150), a controller(110), an optical sensor(190) and a notice lamp(181). The start sensing unit is connected to a power line to sense start of the vehicle. The ultra-violet lamp is installed adjacent to an evaporator and driven with the battery power of the vehicle. The temperature sensor is installed adjacent to the evaporator and senses the temperature of the evaporator. The mode switch is set into an automatic mode for turning on/off the ultra-violet lamp according to the evaporator temperature or a continuous mode for keeping the ultra-violet lamp on. The controller controls on/off of the ultra-violet lamp since the vehicle starting. The optical sensor is installed adjacent to the ultra-violet lamp and connected to the controller, and senses the lighting of the ultra-violet lamp. The notice lamp is turned on/off to indicate the lighting of the ultra-violet lamp.

Description

Evaporator sterilizer for vehicle air conditioning system {A AIR-CLEANING DEVICE FOR EVAPORATOR OF VEHICLE}

The present invention relates to a sterilizer for an evaporator of a vehicle air conditioning system, and more particularly, to an evaporator of a vehicle air conditioning system that can supply more comfortable air to a room by sterilizing an evaporator constituting the vehicle air conditioning system using an ultraviolet lamp. It relates to a sterilizer.

In general, the air conditioning system of the vehicle is for safe driving by removing the frost and the like which are cooled / heated inside the vehicle or the wind shield for the driver and the passenger. Such a vehicle air conditioning system is equipped with a cooling unit and a heating unit at the same time, and after the air or bet is selectively introduced, the air is cooled or heated to blow into the vehicle interior. The cooling unit of a conventional vehicle air conditioning system is provided with an evaporator (Evaporator) for generating cold air, the water droplets are generated in the evaporator due to the temperature difference with the heat exchanged air during operation of the cooling unit, which is adsorbed on the surface of the evaporator and moistened Becomes Therefore, foreign matters from the air flowing from the outside may be attached to the water droplets when the cooling unit of the vehicle is operating, and thus the evaporator is an optimal state in which mold and bacteria may inhabit. As a result, harmful air generated by mold and bacteria is sent to the interior of the vehicle, which has an unpleasant smell.

The present invention is to solve this problem; It is an object of the present invention to provide an evaporator sterilizer for a vehicle air conditioning system which can supply purified air to a vehicle interior by sterilizing an evaporator of a vehicle air conditioning system in which mold and bacteria can inhabit.

In addition, another object of the present invention is to provide an evaporator sterilizer of a vehicle air conditioning system that can operate the ultraviolet lamp of the sterilizer more efficiently according to the evaporator conditions of the vehicle air conditioning system.

In addition, another object of the present invention is to provide an evaporator sterilization apparatus of a vehicle air conditioning system that can easily check whether the UV lamp driving of the sterilization apparatus from the outside, as well as to inform the replacement time.

The present invention for achieving this object is; A sterilization apparatus for an evaporator of a vehicle air conditioning system for sterilizing an evaporator of a vehicle air conditioning system according to whether a vehicle is started; Sterilizer for the evaporator; A start detection unit connected to IG1, which is a power line required to start the vehicle, to detect whether the vehicle is started; An ultraviolet lamp installed around the evaporator and driven by power supplied from a vehicle battery; A temperature sensor installed around the evaporator to detect the evaporator temperature; A mode selection switch for setting an automatic mode for turning on / off the ultraviolet lamp and a continuous mode for continuously turning on the ultraviolet lamp according to the temperature of the evaporator detected by the temperature sensor; After the start of the vehicle is detected through the start detection unit controls the on / off of the ultraviolet lamp in the mode set through the mode selection switch, the temperature of the evaporator detected by the temperature sensor when the automatic mode is set A control unit for turning on / off the ultraviolet lamp according to a change and continuously turning on the ultraviolet lamp when the continuous mode is set; An optical sensor connected to the control unit and installed adjacent to the ultraviolet lamp to detect whether the ultraviolet lamp is turned on; A notification lamp controlled on / off by the controller so as to display whether the ultraviolet lamp is turned on based on a signal input from the optical sensor to the controller; It is characterized by including.

In addition, the present invention; When the control unit supplies power to the ultraviolet lamp, when the ultraviolet lamp lighting signal is input from the optical sensor, the notification lamp is turned on, and the ultraviolet lamp is supplied from the optical sensor while power is supplied to the ultraviolet lamp. When the off signal is input, the notification lamp blinks to drive.

In addition, the present invention is characterized in that the optical sensor consists of a photodiode for sensing the light irradiated from the ultraviolet lamp to transmit an electrical signal to the controller.

According to the evaporator sterilization apparatus of a vehicle air conditioning system according to the present invention; Sterilization of the evaporator of the vehicle air conditioning system in which mold and bacteria can inhabit by automatic control of the ultraviolet lamp through the control unit, there is an effect that the sterilized air can be supplied to the vehicle interior. In addition, there is an advantage that can effectively control the ultraviolet lamp according to the temperature conditions of the evaporator.

In addition, the present invention can be confirmed from the outside whether the operation of the ultraviolet lamp through the notification lamp has the effect of ensuring the product reliability, as well as facilitate the failure of the ultraviolet lamp through the lighting state of the notification lamp. It has the effect of checking and replacing it.

In addition, the present invention can of course be used in conjunction with the vehicle air conditioning system control apparatus.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. {Briefly describe the attached drawings; 1 schematically shows a vehicle air conditioning system to which the present invention is applied, FIG. 2 schematically shows only an electric configuration of an evaporator sterilizer according to the present invention, and FIG. 3 shows an evaporator sterilizer according to the present invention. Control action.}

Referring to FIG. 1; An air conditioning system of a vehicle to which the present invention is applied includes a suction duct 10 disposed in an engine room of a vehicle capable of sucking outside air and bets, a blower unit 20 communicating with the suction duct 10, and a blower unit. An exhaust duct 30 for guiding the air forcedly blown through the vehicle 20 toward the vehicle interior side, and a heater 40 and an evaporator 50 disposed in the middle of the exhaust duct 30 are provided.

The blower unit 20 is provided with the motor 21 and the blower 22, and this motor 21 is drive-controlled by the air-conditioning switch (not shown) in a vehicle. The exhaust duct 30 communicates the blower port 23 of the blower 20 with the vehicle interior, which is a cooling duct 31 and a heating duct 32 branched from the blower port 23 in both directions. The / heating ducts 31 and 32 are divided into a joining duct 33, which is joined again, and a distribution duct 34 for distributing air blowing from the joining duct 33 to the vehicle interior.

In addition, the heating duct 32 is provided with a heater 40 which starts up during heating, and the cooling duct 31 is provided with an evaporator 50 constituting a cooling system. Therefore, when the wind from the blower port 23 of the blower 22 passes through the heater 40, the air becomes heating air, and after passing through the evaporator 50, the air becomes cooling air and is supplied to the vehicle interior. This cooling / heating selection is implemented by the opening and closing selection of the hinge door 60 controlled by the operating device (not shown) in the vehicle.

On the other hand, when the vehicle cooling system is running, the evaporator 50 is always moist due to the water droplets generated during heat exchange, and the conditions in which mold and bacteria can inhabit due to accumulation of foreign matter.

The present invention is to prevent the occurrence of bacteria and mold in the evaporator 50 constituting such a cooling system at the source to effectively exhibit the sterilization and deodorization function.

1 and 2; The evaporator sterilizer 100 (hereinafter referred to as “sterilizer”) of the vehicle air conditioning system according to the present invention is driven by being supplied with the power of the vehicle battery 70. If caught, it can be sterilized periodically or continuously.

for teeth; Sterilization apparatus 100 according to the present invention, the start detection unit 160 for detecting whether the vehicle is started, the timer 170 for measuring the vehicle running time, and the temperature detection for detecting the temperature of the evaporator 50 A sensor 140, a mode selection switch 150 for setting a sterilization mode, an ultraviolet lamp 130 provided in the vicinity of the evaporator 50, and an oscillation transformer for supplying operating power to the ultraviolet lamp 130. 120, the optical sensor 190 for detecting whether the ultraviolet lamp 130 is substantially lit, and the oscillation transformer 120 so that the ultraviolet lamp 130 is turned on or off periodically or continuously to sterilize The control unit 110 to control the driving, the detailed structure of each component is as follows.

First, the start detection unit 160 is connected to the input side of the control unit 110, and when the driver turns the vehicle on by means of the start key, the power line required for the key box It is connected to IG (ignition) -1 to detect whether the vehicle is started. That is, when the driver turns on the vehicle, the positive current continuously flows from the vehicle battery 70 to the IG-1 power line, while the vehicle is shut off when the vehicle is turned off. With this in mind, if the start detection unit 160 is electrically connected to the IG-1 power line, it is possible to easily detect whether the vehicle is started without modifying the vehicle electronics box.

In addition, the timer 170 is also connected to the input side of the control unit 110, to measure the running time of the vehicle after the vehicle start is detected through the start detection unit 160. That is, the timer 170 is immediately driven when the detection signal of the start detection unit 160 is input, through which the running time of the vehicle can be measured.

As described above, the ultraviolet lamp 130 is disposed around the evaporator 50 disposed in the cooling duct 31 to sterilize the evaporator 50. That is, the ultraviolet lamp 130 is driven by being supplied with a high voltage through the oscillation transformer 120 which is driven by the DC 12 Volt power supply from the vehicle battery 70, in this case irradiated with light having a wavelength of approximately 180 ~ 450nm do. Therefore, not only the surface of the evaporator 50 is sterilized, but also various organic substances in the air introduced through the cooling duct 31 are decomposed, which will be described in detail in the operation description.

In addition, the optical sensor 190 is for detecting whether the ultraviolet lamp 130 is substantially lit. In the present invention, when the ultraviolet lamp 130 is driven, the light sensor 190 senses the light irradiated therefrom to the controller 110. It was composed of a photodiode capable of transmitting a signal. The optical sensor 190 is installed in close proximity to the ultraviolet lamp 130 to easily detect the light emitted from the ultraviolet lamp 130. Therefore, when the ultraviolet lamp 130 is turned on and the light is irradiated, the optical sensor 190 sends a signal to the controller 110 that the ultraviolet lamp 130 is actually turned on, while the ultraviolet lamp 130 is turned on. If not, the optical sensor 190 sends a signal to the control unit 110 that the ultraviolet lamp 130 is turned off. In addition, the controller 110 controls the lighting of the notification lamp 181 to be described later based on a signal input through the optical sensor 190. In the exemplary embodiment of the present invention, the light sensor 190 (photodiode) has been described as detecting whether the ultraviolet lamp 130 is turned on. However, other sensing means such as an illumination sensor detects whether the ultraviolet lamp 130 is turned on. Of course you can.

On the other hand, the temperature sensor 140 is also disposed around the evaporator 50 to detect its surface temperature, which detects the temperature of the evaporator 50 in the automatic mode to be described later to be transmitted to the control unit 110 as an electrical signal. The controller 110 may intermittently turn on / off the ultraviolet lamp 130 based on this.

The mode selection switch 150 is an automatic mode (S60; see FIG. 3) and an ultraviolet lamp capable of turning on / off the ultraviolet lamp 130 according to the temperature of the evaporator 50 detected through the temperature sensor 140. This is to set the continuous mode 130 (see FIG. 3) which can continuously turn on the 130. The mode selection switch 150 is operated by a user, and is already programmed in the memory 111 of the controller 110 such that the automatic mode S60 or the continuous mode S70 is set alternately with each press. .

In addition, the control unit 110 after the start of the vehicle is detected through the start detection unit 160, the ultraviolet lamp 130 in the mode (automatic mode (S60) or continuous mode (S70)) set through the mode selection switch 150. ) To control the on / off, when the automatic mode (S60) is set to the on / off control of the ultraviolet lamp 130 according to the temperature change of the evaporator 50 detected through the temperature sensor 140, When the continuous mode S70 is set, the ultraviolet lamp 130 is continuously controlled on.

In addition, the memory 111 of the controller 110 is programmed to continuously turn on the UV lamp 130 for a set time regardless of whether the mode is set to sterilize the evaporator 50 when the vehicle is started. . In the embodiment of the present invention was configured to enter the set mode after the ultraviolet lamp 130 continuously operated for 5 minutes, which is the evaporator 50 in the state that bacteria and fungi can inhabit at room temperature when the vehicle is started. To sterilize.

In addition, the output side of the controller 110, the display unit 180 (LCD) for visually confirming the operation mode and time to the user, and the oscillation transformer for driving the ultraviolet lamp 130 by receiving power from the vehicle battery 70 120 is connected. Since the oscillation transformer 120 has been described while describing the ultraviolet lamp 130, a detailed description thereof will be omitted.

The display unit 180 is preferably disposed in the vehicle interior so that the driver can easily check the vehicle interior, and the notification lamp 181 is configured to indicate whether the ultraviolet lamp 130 is turned on. In the embodiment of the present invention, the notification lamp 181 is configured as an LED that is controlled on / off based on the signal input to the controller 110 from the optical sensor 190. That is, the controller 110 continuously drives the notification lamp 181 when the signal is turned on from the optical sensor 190 while the power is applied to the ultraviolet lamp 130. Even when power is supplied to the UV lamp 130, the OFF signal of the UV lamp 130 is input from the optical sensor 190. Accordingly, when the OFF signal of the UV lamp 130 is input even when power is supplied to the UV lamp 130, the UV lamp 130 may be determined to have reached the end of its life or does not operate due to a failure. . The display unit 180 provided with the notification lamp 181 is preferably installed so that a driver or the like can easily check the vehicle interior. On the other hand, when the power supply to the UV lamp 130 is normally cut off, the notification lamp 181 is also programmed to be turned off regardless of the input signal of the optical sensor 190.

As a result, whether or not the ultraviolet lamp 130 of the sterilization apparatus 100 disposed in the engine room of the vehicle is operating normally can be easily confirmed through the notification lamp 181 of the display unit 180.

Next, a control operation of the sterilization apparatus according to the present invention according to whether the vehicle is started (driving) will be described with reference to FIG. 3.

First, when the driver boards the vehicle and turns on the vehicle, it is determined whether the vehicle is started (S10).

When it is determined that the vehicle is started in the vehicle start determination step (S10), the controller 110 operates the timer 170 to obtain vehicle driving time information (S20), and the evaporator 50 constituting the vehicle air conditioning system. Carrying out the first step of driving the ultraviolet lamp 130 to sterilize (S30). At this time, the ultraviolet lamp 130 is driven by the power is supplied from the oscillation transformer 120, the control unit 110 in the vehicle start determination step (S10) in the vehicle starting through the start detection unit 160 (ON) ), The oscillation transformer 120 is driven by receiving power from the vehicle battery 70.

In more detail, when the vehicle is started, a lamp primary driving step (S30) for driving the ultraviolet lamp 130 is primarily performed together with driving the timer 170, and thus generated in the ultraviolet lamp 130. Bacteria and fungi on the surface of the evaporator 50 are sterilized by the sterilizing wavelengths, which cannot be inhabited. That is, the ultraviolet lamp 130 emits ultraviolet rays having a wavelength of approximately 180 to 450 nm.

Due to the ultraviolet light, electrons and electron holes are formed on the surface of the evaporator 50 to form hydroxy radicals (-OH) and super oxides having strong oxidation power. These hydroxy radicals and super oxides oxidize and decompose organic compounds into water and carbon dioxide. Therefore, when the ultraviolet lamp 130 is operated, the contaminants around the evaporator 50 are changed into harmless water and carbon dioxide gas. That is, since bacteria and odor molecules in the air are also organic compounds, they are oxidized / decomposed when irradiated to the ultraviolet lamp 130, so that the sterilized air can be supplied to the interior of the vehicle when the air conditioning system is activated.

This ramp primary driving step (S30) proceeds until the vehicle running time passes the set time. That is, after the ramp primary driving step S30 is executed, the controller 110 determines whether the vehicle driving time has elapsed through the timer 170 (S40). If it is determined that the vehicle driving time has passed the set time in the vehicle driving time determination step (S40), the controller 110 determines the mode set by the mode selection switch S50 (S50).

In the embodiment of the present invention, if it is determined that the vehicle driving time has passed 5 minutes in the vehicle driving time determination step (S40), it is programmed to execute the driving mode determination step (S50). 130 is driven for about 5 minutes because the entire evaporator 50 is sterilized. {Also, although not shown in the flowchart of FIG. 3, if the vehicle is turned off before the driving mode determination step S50, the controller 110 is programmed to return to the vehicle starting determination step S10, which is a vehicle operation. This is because the time is short and the pollution degree of the evaporator 50 is not only weak, but already sterilized by the ultraviolet lamp 130.

Subsequently, when the driving mode determination step (S50) is carried out for more than 5 minutes, the UV lamp 130 intermittently in accordance with the mode set by the mode selection switch 150, that is, the temperature change of the evaporator 50. The automatic mode (S60) to turn on / off or the continuous mode (S70) to turn on the UV lamp 130 continuously.

First, a case in which the user sets the automatic mode S60 through the mode selection switch 150 will be described. In this case, the driving mode determination step (S50) is determined as the automatic mode (S60) for controlling the UV lamp 130 on / off according to the temperature change of the evaporator 50, the control unit 110, the temperature sensor 140 The primary temperature detection step (S61) for detecting the temperature of the evaporator 50 through the) and the primary to determine whether the temperature of the evaporator 50 detected in the primary temperature detection step (S61) is 7 ℃ or more. The temperature judging step S62 is executed. If it is determined that the temperature of the evaporator 50 is 7 ° C. or lower in the first temperature determination step S62 of the automatic mode S60, the lamp off step returns to the first temperature detection step 61 after turning off the ultraviolet lamp 130. (S66), on the other hand, if it is determined that the temperature of the evaporator 50 is 7 ° C. or higher in the first temperature determination step (S62), the lamp secondary driving step (S63) for keeping the ultraviolet lamp 130 on is performed. To perform.

If it is less than 7 ℃ in this primary temperature determination step (S62); When the cooling unit of the vehicle air conditioning system is started within 5 minutes of running time of the vehicle and the temperature of the evaporator 50 drops to 7 ° C or lower, and at 7 ° C or lower, additional bacteria and mold propagation are rarely performed. Will be done.

As described above, 7 ° C. as the reference temperature in the first temperature determination step (S62) is because, as described above, when the temperature is 7 ° C. or higher, it is a temperature condition in which bacteria and mold can propagate around the evaporator 50. .

In addition, when the temperature is 7 ° C. or higher in the first temperature determination step S62, the second lamp driving step S63 may be performed to further sterilize the vicinity of the evaporator 50 by keeping the ultraviolet lamp 130 on. That is, the secondary lamp driving step S63 continuously powers the ultraviolet lamp 130 turned on in the lamp primary driving step S61 when the evaporator 50 temperature is 7 ° C. or higher in the first temperature judging step S62. Is to start by supplying.

Subsequently, after the lamp secondary driving step S63, the secondary temperature sensing step S64 for sensing the temperature of the evaporator 50 through the temperature sensor 140, and the secondary temperature sensing step S64. The secondary temperature determination step (S65) for determining whether the evaporator 50 temperature is below 5 ° C is performed.

If the secondary temperature determination step (S65) 5 ℃ or more in the second temperature sensing step (S64) again, if less than 5 ℃ to perform the lamp off step (S66) and then to the primary temperature sensing step (S61) Go back. That is, when the temperature is 5 ° C. or lower in the second temperature determination step (S65), the vehicle running time exceeds 5 minutes and the cooling unit of the vehicle air conditioning system is sufficiently started so that the temperature of the evaporator 50 falls below 5 ° C., and the evaporator ( 50) even if a lot of water droplets condensed at less than 5 ℃ bacteria and fungus breeding is to perform a ramp-off step (S66).

On the other hand, if it is detected that the vehicle start is turned off through the start detection unit 160 while performing the automatic mode (S60), although not shown in the flow chart of Figure 3 to turn off the UV lamp 130 after a predetermined time Carry out further ramp third drive step. That is, if the vehicle operation exceeds 5 minutes, a lot of water droplets will be formed on the surface of the evaporator 50. If the vehicle air conditioning system is stopped while the vehicle is turned off in this state, bacteria and mold may grow in the evaporator 50. Conditions that can be formed.

Therefore, when the vehicle is turned off after 5 minutes of driving, the ultraviolet lamp 130 is turned off after being turned on for a predetermined time (set to 10 minutes in the embodiment of the present invention). Therefore, even after the vehicle is turned off, the UV lamp 130 is further operated for 10 minutes to completely sterilize bacteria and molds that may inhabit the surface of the evaporator 50.

Next, a case in which the user sets the continuous mode S70 through the mode selection switch 150 will be described. In this case, the driving mode determination step (S50) is determined to be a continuous mode (S70) for continuously turning on the ultraviolet lamp 130 irrespective of the temperature change of the evaporator (50), so that the controller 110 drives the lamp primary The lamp-on holding step (S71) for continuously turning on the ultraviolet lamp 130 turned on in step (S30), and whether the start of the vehicle is turned off through the start detection unit 160 after the lamp-on holding step (S71). The vehicle off determination step (S72) for determining and the additional lamp driving step (S73) for turning off the UV lamp 130 after a predetermined time when it is determined that the vehicle starting is turned off in the vehicle off determination step (S72) is performed. Do it.

The continuous mode S70 is for sterilizing the evaporator 50 continuously while the vehicle is started. When the vehicle is judged to be turned on in the vehicle off determination step S72 of the continuous mode S70, the lamp is turned on. The on holding step S71 is continuously maintained.

The lamp addition driving step S73 is substantially the same as the lamp third driving step of the automatic mode S60 described above. In other words, when the vehicle is turned off after driving for more than 5 minutes, the ultraviolet lamp 130 is turned on after a predetermined time (set to 10 minutes in the embodiment of the present invention). Therefore, after the vehicle is turned off, the evaporator 50 is further irradiated for 10 minutes through the ultraviolet lamp 130 to completely sterilize the bacteria and fungi that may inhabit here.

In this way, the surroundings of the evaporator 50 can be completely sterilized before the start of the vehicle is turned on for more than five minutes, and the evaporator 50 and the surroundings thereof are completely sterilized even when the starting of the vehicle is turned off. Accordingly, even if the vehicle is started and the cooling unit is immediately driven, comfortable air can be supplied to the vehicle interior. In addition, when the ultraviolet lamp 130 is driven in the automatic mode (S60) or continuous mode (S70) while the vehicle is running, various organic substances mixed in the air around the evaporator 50 and passing through the cooling duct 31 are decomposed, I can always keep the air in a vehicle comfortable.

On the other hand, if the control unit 110 is applied to the ultraviolet lamp 130 through the oscillation transformer 120, regardless of the automatic mode / continuous mode, when the ultraviolet lamp 130 light signal is input through the optical sensor 190 The notification lamp 181 is continuously turned on. Accordingly, the vehicle driver may know that the ultraviolet lamp 130 is normally driven through the notification lamp 181 that is continuously turned on. On the other hand, even when the power is applied to the ultraviolet lamp 130 side irrespective of the manual mode / continuous mode, the light is not irradiated from the ultraviolet lamp 130, so when the ultraviolet lamp 130 off signal is input to the controller 110, the controller ( In operation 110, the notification lamp 181 is turned on and then blinks to repeatedly turn off. Therefore, the vehicle driver may confirm that the life of the ultraviolet lamp 130 has reached the end of life or failure, and may take measures such as replacing the ultraviolet lamp 130.

1 schematically illustrates a vehicle air conditioning system to which the present invention is applied.

Figure 2 shows only the electrical configuration of the evaporator sterilizer of the vehicle air conditioning system according to the present invention.

3 is a flowchart illustrating a control operation of an evaporator sterilizer of a vehicle air conditioning system according to the present invention.

* Description of the symbols for the main parts of the drawings *

30..Exhaust duct 50..Evaporator

100. Sterilization unit 110. Control unit

120. Oscillation transformer 130. UV lamp

140. Temperature sensor 150. Mode selector switch

160..Startup sensor 170..Timer

180. Display 181. Notification lamp

190..Light sensor

Claims (3)

An evaporator sterilizer 100 of a vehicle air conditioning system for sterilizing an evaporator 50 of a vehicle air conditioning system according to whether a vehicle is started; The evaporator sterilizer 100 is; A start detection unit 160 connected to IG1, which is a power line required to start the vehicle, to detect whether the vehicle is started; An ultraviolet lamp 130 installed around the evaporator 50 and driven by the power of the vehicle battery 70; A temperature sensor 140 installed around the evaporator 50 to detect a temperature of the evaporator 50; According to the temperature of the evaporator 50 sensed by the temperature sensor 140, the automatic mode (S60) capable of turning on / off the UV lamp 130 and the UV lamp 130 are continuously turned on. A mode selection switch 150 for setting to a continuous mode (S70); After the start of the vehicle is detected through the start detecting unit 160, the on / off control of the ultraviolet lamp 130 is controlled in the mode set through the mode selection switch 150, but is set to the automatic mode (S60). In this case, the ultraviolet lamp 130 is turned on / off according to the temperature change of the evaporator 50 detected by the temperature sensor 140, and when the continuous lamp (S70) is set, the ultraviolet lamp 130 is A controller 110 for continuously turning on; An optical sensor (190) connected to the control unit (110) and installed adjacent to the ultraviolet lamp (130) for detecting whether the ultraviolet lamp (130) is turned on; The notification lamp 181 on / off controlled by the controller 110 to display whether the ultraviolet lamp 190 is turned on based on a signal input from the optical sensor 190 to the controller 110. To; Evaporator sterilization apparatus of a vehicle air conditioning system characterized in that it comprises. The method of claim 1, The control unit 110; When power is supplied to the UV lamp 130, when the UV lamp 130 is turned on from the optical sensor 190, the notification lamp 181 is turned on and the power is supplied to the UV lamp 130. Evaporator sterilizer of a vehicle air conditioning system, characterized in that for driving the notification lamp (181) flashes when the input signal of the ultraviolet lamp 130 from the light sensor in the supplied state. The method according to claim 1 or 2, The optical sensor 190 is an evaporator sterilizer of a vehicle air conditioning system, characterized in that consisting of a photodiode for sensing the light irradiated from the ultraviolet lamp 130 to transmit an electrical signal to the control unit (110).

Images