KR20110009386A - Air-cleaning device for evaporator of vehicle and air-cleaning device control method for evaporator of vehicle - Google Patents

Abstract

PURPOSE: A sterilizer for an evaporator of a vehicle air-conditioning system and a control method thereof are provided to supply sterilized air to the inside of a vehicle by sterilizing an evaporator of a vehicle air-conditioning system through automatic control of a sterilizing lamp. CONSTITUTION: A sterilizer for an evaporator of a vehicle air-conditioning system comprises a start-up sensor(160), a rechargeable battery(300), a power supply unit(200), a timer(170), and a controller(110). The start-up sensor senses the on/off of a vehicle according to the power provided from a car battery(80). The rechargeable battery is charged with the power provided from the car battery and supplies auxiliary power. According to the sensing result of the start-up sensor, the power supply unit supplies the power of the car battery in case the vehicle is on and the auxiliary power of the rechargeable battery in case the vehicle is off. The timer measures the on/off time of a sterilizing lamp(130). When the auxiliary power of the rechargeable battery is provided through the power supply unit, the controller repeats operating and halting the sterilizing lamp according to a predetermined time cycle.

Description

Evaporator sterilizer for vehicle air conditioning system and control method thereof {AIR-CLEANING DEVICE FOR EVAPORATOR OF VEHICLE AND AIR-CLEANING DEVICE CONTROL METHOD FOR EVAPORATOR OF VEHICLE}

The present invention relates to a sterilizer for an evaporator of a vehicle air conditioning system and a control method thereof, and more particularly, even when the vehicle is turned off by sterilizing the evaporator constituting the vehicle air conditioning system using a sterilization lamp (ultraviolet lamp). The present invention relates to a sterilization apparatus for an evaporator of a vehicle air conditioning system and a control method thereof for supplying comfortable air to a room.

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.

In order to solve this disadvantage, the applicant has applied for a sterilization apparatus for an evaporator of a vehicle air conditioning system and a control method thereof (Application No. 10-2007-0035876) to secure the rights (Registration No. 10-0745022). According to the control method of the sterilizer for the evaporator of the vehicle air conditioning system disclosed in the applicant's Invention Patent No. 10-0745022; A method of controlling a sterilization device having an ultraviolet lamp disposed around an evaporator and a temperature sensor to sterilize an evaporator of a vehicle air conditioning system according to whether the vehicle is started, determining whether the vehicle is started. A first driving step of driving a timer to check a driving time of the vehicle and first turning on an ultraviolet lamp to sterilize an evaporator if it is determined that the starting of the vehicle is turned on in the starting start determination step and the vehicle starting determination step; The vehicle driving time determination step of controlling the ultraviolet lamp to be turned on continuously until the vehicle driving time elapses after the ramp primary driving step, and the vehicle driving time has elapsed in the vehicle driving time determining step. If judged, turn on / off the UV lamp according to the temperature change of evaporator detected by the temperature sensor. Performing an automatic mode is set to, or characterized by comprising a drive mode determination step of determining whether to perform the continuous mode is set so as to turn on the ultraviolet lamps in a row. In addition, the control method of the sterilizer for the evaporator of the vehicle air conditioning system is characterized in that the third step of driving the lamp further turns off after turning on the ultraviolet lamp for a predetermined time even when the vehicle start is off (OFF).

Accordingly, since the evaporator of the vehicle air conditioning system in which mold and bacteria can inhabit is sterilized, there is an effect of supplying sterilized air to a room while driving a vehicle. In addition, even when the vehicle startup is turned off, by turning the ultraviolet lamp on (OFF) for a predetermined time (about 10 minutes) through the vehicle power supply, the bacteria and mold in the evaporator are sterilized.

However, in the control method of the evaporator sterilizer of the vehicle air conditioning system, when the vehicle is turned off for a long time, the evaporator is exposed to an environment where bacteria and mold can inhabit again. Initially, there is a disadvantage that the unsterilized air is supplied to the room. This disadvantage is that when the vehicle is turned off, the ultraviolet lamp is turned on for a predetermined time (10 minutes in the embodiment) through the vehicle power supply and then turned off, so that the evaporator may inhabit bacteria and mold again in a long time or long parked state. This is because the condition is maintained.

The present invention is to solve this problem; It is an object of the present invention to periodically sterilize an evaporator of a vehicle air conditioning system that can inhabit molds and bacteria through a sterilization lamp even when the vehicle startup is turned off, thereby enabling to supply purified air to the vehicle interior at all times. The present invention provides a sterilizer for an evaporator of a system and a control method thereof.

In addition, another object of the present invention is to provide a sterilization apparatus for an evaporator of a vehicle air conditioning system and a control method thereof in which the discharging phenomenon of the vehicle battery is not generated by periodically operating the sterilization lamp through the rechargeable battery when the vehicle startup is turned off. It is.

According to an aspect of the present invention, A sterilization apparatus for an evaporator of a vehicle air conditioning system for sterilizing the evaporator by driving a sterilization lamp disposed around an evaporator of a vehicle air conditioning system according to a predetermined control program by receiving a vehicle power source of a vehicle battery;

The evaporator sterilizer; A start detection unit detecting a vehicle power provided from the vehicle battery and detecting a vehicle start on / off; A charging battery capable of charging the vehicle power provided from the vehicle battery and providing auxiliary power; A power supply unit for supplying vehicle power of the vehicle battery when the vehicle startup is turned on according to a detection result of the start detection unit and for supplying auxiliary power of the rechargeable battery when the vehicle startup is turned off; A timer for measuring an on / off time of the sterilizing lamp; A control unit which controls the sterilization lamp to be driven after a predetermined time period after the sterilization lamp is continuously driven for a predetermined time when the auxiliary power of the rechargeable battery is supplied through the power supply unit; It is characterized by including.

In addition, when the auxiliary battery of the rechargeable battery is supplied, the control unit continuously drives the sterilization lamp for a predetermined time and then turns off the sterilization lamp for 30 minutes to 60 minutes and then again for 2 to 5 minutes. It is characterized by turning on continuously.

In addition, the present invention is a voltage level detection unit for detecting the voltage level of the vehicle power applied from the vehicle battery, and the vehicle startup is turned on when the voltage level detected by the voltage level detection reader is more than the set voltage level value And a microcomputer for outputting a signal and outputting a signal in which the vehicle startup is turned off when the voltage level is less than or equal to a set voltage level.

In addition, the present invention for achieving the above object; A sterilization lamp disposed around the evaporator of the vehicle air conditioning system, a start detection unit that detects vehicle power on / off by sensing vehicle power provided from the vehicle battery, and charges the vehicle power provided from the vehicle battery to supply auxiliary power. A rechargeable battery that can be provided and a power supply for supplying the vehicle power of the vehicle battery when the vehicle startup is turned on according to the detection result of the start detection unit, and supplying the auxiliary power of the rechargeable battery when the vehicle startup is turned off. A control method of a sterilizer for an evaporator of a vehicle air conditioning system for sterilizing the evaporator by driving the sterilization lamp according to a set control program, comprising:

A vehicle startup determination step of determining whether the vehicle startup is on / off through the start detection unit; A lamp additional driving step of driving the sterilization lamp continuously for a predetermined time by applying an auxiliary power source of the rechargeable battery from the power supply unit when it is determined that the vehicle startup is turned off in the vehicle startup determination step; A lamp driving cycle determination step of determining whether a predetermined time has passed after the lamp additional driving step; If it is determined that the predetermined time has elapsed in the lamp driving cycle determination step, the auxiliary power of the rechargeable battery is applied to drive the sterilization lamp and then off. When the sterilization lamp is turned off, the lamp intermittent returns to the lamp driving cycle determination step. Driving steps; It is characterized by including.

The present invention also provides The predetermined time period of the lamp driving cycle determination step is set to 30 minutes to 60 minutes, and in the lamp intermittent driving step, the sterilization lamp is continuously driven for 2 to 5 minutes and is set to be off.

According to the sterilization apparatus for an evaporator of a vehicle air conditioning system and a control method thereof according to the present invention; As the evaporator of the vehicle air conditioning system in which mold and bacteria can inhabit by automatic control of the sterilization lamp through the control unit is sterilized, there is an effect of supplying sterilized air to the interior of the vehicle. In particular, even when the vehicle is turned off, the sterilization lamp is intermittently driven by the auxiliary battery of the rechargeable battery to sterilize the evaporator of the vehicle air conditioning system, so that purified air can always be supplied to the vehicle interior regardless of the vehicle startup on or off. There are advantages to it.

In addition, the sterilizing apparatus for the evaporator of the vehicle air conditioning system and the control method thereof according to the present invention detects the start-up of the vehicle through the voltage level of the vehicle battery, and if it is determined that the vehicle startup is off, the vehicle power from the vehicle battery By automatically blocking, there is an effect that can fundamentally block the discharge phenomenon of the vehicle battery due to the installation of the sterilizer.

In addition, the sterilizing apparatus for the evaporator of the vehicle air conditioning system and the control method thereof according to the present invention can be used in conjunction with the air conditioning system control apparatus of the vehicle.

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; Figure 1 schematically shows a vehicle air conditioning system to which the present invention is applied, Figure 2 schematically shows only the electrical configuration of the sterilizer for an evaporator according to the present invention, Figure 3 is a start detection unit according to the present invention 4 shows an electric configuration, and FIG. 4 shows a table showing voltage levels of a vehicle battery according to on / off of a vehicle start. And Figure 5 shows the control operation of the sterilizer for an evaporator according to the present invention.

Prior to describing one preferred embodiment according to the present invention; As described in the related art, the vehicle air conditioning system according to the present invention periodically evaporates even when the vehicle is turned off in the sterilizer for the evaporator of the vehicle air conditioning system disclosed in Patent No. 10-0745022, in which the applicant has rights. The technical configuration that can be sterilized (start-off mode) is described as an additional configuration. That is, the present invention receives the vehicle power (vehicle battery power) in the state that the vehicle startup is turned on, but in the state that the vehicle startup is off by operating a sterilization lamp of the sterilizer periodically through a separate rechargeable battery power, always around the evaporator It should be noted that the configuration can be maintained in a purified state. In addition, the vehicle battery is configured to charge the vehicle power when the vehicle generator is started and the vehicle generator is started, and the vehicle power charged in the vehicle battery is an electrical component that forms a sterilization device through a power supply unit of a sterilization device to be described later. To be supplied.

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 and capable of suctioning outside air or a bet, and a blower unit communicating with the suction duct 10. 20), an exhaust duct 30 for guiding the air forcedly blown through the blower unit 20 to 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 unit. 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; Evaporator sterilizer 100 (hereinafter referred to as "sterilization apparatus") of the vehicle air conditioning system according to the present invention is driven by the vehicle power supply of the vehicle battery 80 when the vehicle startup is turned on (ON) and the vehicle startup is off (OFF) When the auxiliary power supply of the built-in separate charging battery 300 is supplied to drive, the evaporator 50, which is concerned about bacterial propagation, can be continuously or periodically sterilized regardless of on / off of vehicle start-up. Can be.

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 sterilization lamp driving time, and the temperature of the evaporator 50 A temperature sensor 140 for detecting the temperature, a mode selection switch 150 for setting a sterilization mode, a sterilization lamp 130 installed in the vicinity of the evaporator 50, and a power supply for the sterilization lamp 130. The oscillation transformer 120 for supplying the battery, the vehicle battery supplied from the vehicle battery 80, the charging battery 300 for supplying the auxiliary power when the vehicle is turned off, and the sterilization lamp 130 continuously or The vehicle power source and the charge battery 300 of the vehicle battery 80 according to the detection result of the control unit 110 and the start detection unit 160 to control the oscillation transformer 120 so as to periodically turn on / off sterilization action A power supply unit 200 for selectively supplying auxiliary power of The detailed structure of each component is as follows.

First, the start detection unit 160 determines whether the vehicle is started according to the voltage level of the power noise from the vehicle power output from the vehicle battery 80, and outputs a start on / off signal according to the determination result.

That is, the vehicle power provided here is directly affected by the operation of the generator 70 (see FIG. 2) of the vehicle. The voltage level of the power noise included in the vehicle power is high in the generator 70 and the generator 70 is operated. It is lower than a certain level without operating. As a result, as shown in FIG. 4, the voltage level V1 of the vehicle power source applied from the vehicle battery 80 while the vehicle startup is ON is higher than the preset reference voltage level Vf. In FIG. 4, V2 represents the voltage level of the vehicle power source applied from the vehicle battery 80 in a state in which vehicle startup is turned off and the generator 80 is not operated.

With this in mind, the start detection unit 160 is designed to determine whether to start the vehicle according to the voltage level of the power noise of the vehicle power output from the vehicle battery 80, without modifying the vehicle electronics box. Whether the vehicle is started can be easily detected. To this end, as shown in FIG. 3, in the exemplary embodiment of the present invention, the start detection unit 160 may include a power supply noise detector 161 for detecting power supply noise included in a vehicle power supply, and a voltage level of the detected power supply noise. The microcomputer 162 may determine whether to start the vehicle by comparing the set reference level. The microcomputer 162 is programmed to output a start-on signal when the voltage level of the power supply noise is higher than the reference level, and output a start-off signal to the power supply unit 200 when the voltage level of the power supply noise is lower than the reference level. .

Therefore, as shown in FIG. 2, when the vehicle startup is turned on, the first switch 220 of the power supply unit 200 is turned on and the vehicle power of the vehicle battery 80 is a rectifier diode 240. After being rectified through) is supplied to the electrical components of the sterilization apparatus (100). In addition, when the vehicle start-on signal is input, the power supply unit 200 turns on the second switch 210. Accordingly, the auxiliary battery is charged in the rechargeable battery 300, and the auxiliary power may be supplied to the electrical components of the sterilizing apparatus 100 through the third switch 230 and the rectifying diode 250. At this time, the auxiliary power of the rechargeable battery 300 is set to be lower than the voltage level of the vehicle power applied from the vehicle battery 80, and thus is not output when the actual vehicle startup is turned on. On the other hand, when the signal for starting the vehicle is turned off and the first switch 220 is turned off, the vehicle power is cut off and the auxiliary power of the rechargeable battery 300 is applied as an electric component of the sterilization apparatus 100. By the set control operation, the sterilization lamp 1300 may be driven.

In addition, the timer 170 is connected to the input side of the control unit 110. After the start of the vehicle is sensed through the start detecting unit 160, the driving time of the vehicle is measured and the driving time of the sterilization lamp 130 is measured. will be. That is, the timer 170 is immediately driven when the detection signal of the start detection unit 160 is input, and thus the driving time of the vehicle can be measured.

As described above, the sterilization lamp 130 is disposed around the evaporator 50 in the cooling duct 31 to sterilize the evaporator 50. In the embodiment of the present invention, the sterilizing lamp 130 is configured as an ultraviolet lamp driving by applying a high voltage through the oscillation transformer 120 is driven by a DC 12Volt power supply from the vehicle battery 70, in this case approximately 180 ~ Irradiate light having a wavelength of 450 nm. 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. As described above, in the embodiment of the present invention, the germicidal lamp 130 has been described as being configured as an ultraviolet lamp (UV LAMP). However, the LED sterilization lamp using the LED may be applied without being limited thereto.

In addition, 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 and transmits it to the control unit 110 as an electrical signal. And, the control unit 110 can be turned on / off the sterilization lamp 130 intermittently based on this.

The mode selection switch 150 is an automatic mode (S60; see FIG. 5) that can turn on / off the sterilization lamp 130 according to the temperature of the evaporator 50 detected through the temperature sensor 140, and the sterilization lamp. This is to set the continuous mode 130 (see FIG. 5) 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 so that the automatic mode S60 or the continuous mode S70 is alternately set each time it is pressed. .

In addition, the control unit 110 is the sterilization lamp 130 in the mode (automatic mode (S60) or continuous mode (S70)) set through the mode selection switch 150 after the vehicle start is detected through the start detection unit (160). ) To control the on / off, or to turn on / off control of the sterilization lamp 130 periodically in the vehicle start-off mode (S80; see FIG. 5), when it is set to the automatic mode (S60). In accordance with the temperature change of the evaporator 50 detected by the temperature sensor 140 to control the sterilization lamp 130 on / off, when set to the continuous mode (S70) to turn on the sterilization lamp 130 continuously To control.

In addition, the memory 111 of the controller 110 is programmed to continuously turn on the UV lamp 130 for a predetermined 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 initial operation of the ultraviolet lamp 130 for 5 minutes, this is the evaporator 50 in the state that the bacteria and mold can be inhabited at room temperature when the vehicle start-up 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 sterilization lamp 130, a detailed description thereof will be omitted. In addition, the display unit 180 may be disposed in the vehicle interior so that the driver can easily check the vehicle interior.

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. 5.

First, when the driver boards the vehicle and starts the vehicle (ON), it is determined whether the vehicle startup is turned on (S10).

When it is determined that the vehicle startup is turned on in the vehicle startup 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. In operation S30, the sterilization lamp 130 for sterilizing is primarily driven. At this time, the sterilization lamp 130 is driven by the power 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) If it is determined that the), the oscillation transformer 120 is driven to receive power from the vehicle battery (80).

In more detail, when the vehicle startup is turned on, the first driving step (S30) of driving the sterilization lamp 130 is primarily performed together with driving the timer 170, which is generated by the ultraviolet lamp 130. Bacteria and fungi on the surface of the evaporator 50 are sterilized by the sterilization wavelength, and thus cannot be inhabited. That is, the germicidal 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 sterilization lamp 130 is operated, the pollutants around the evaporator 50 is 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 germicidal lamp 130 to supply sterilized air 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), which is a sterilization lamp after starting the vehicle ( 130 is driven for about 5 minutes because the entire evaporator 50 is sterilized. {Also, although not shown in the flowchart of FIG. 5, when the vehicle is turned off before the driving mode determination step S50, the control unit 110 returns to the vehicle starting determination step S10 and starts a startup off mode S80 to be described later. It is programmed to execute because the vehicle running time is short, not only is the pollution of the evaporator 50 weak, but also is already sterilized by the sterilization lamp 130.

Subsequently, when the driving mode determination step (S50) is carried out over 5 minutes, the sterilization 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) for continuously turning on the sterilization lamp 130 is executed.

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 on / off control of the sterilization lamp 130 according to the temperature change of the evaporator 50, the control unit 110 in 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 sterilization 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 maintaining the sterilization lamp 130 in an on state 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 the running time of the vehicle and the temperature of the evaporator 50 falls below 7 ° C., at 7 ° C. or lower, additional bacteria and mold propagation are rarely performed. To do.

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, if the temperature is 7 ° C. or higher in the first temperature determination step S62, the second lamp driving step S63 is further performed to further sterilize the evaporator 50 by keeping the sterilization lamp 130 in an on state. That is, the secondary lamp driving step (S63) is continuously supplied to the sterilization lamp 130 turned on in the lamp primary driving step (S61) when the temperature of the evaporator 50 in the first temperature determination step (S62) is 7 ℃ or more. 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 ( Even if a lot of water droplets are formed in 50), the lampoff step (S66) is performed at 5 ° C. or less, since bacteria and mold growth are hardly achieved.

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), it is programmed to execute the start-off mode (S80) to be described later. That is, if the vehicle operation exceeds 5 minutes, a lot of water droplets will be formed on the surface of the evaporator 50. In this state, if the vehicle air conditioning system is stopped while the vehicle is turned off, the evaporator 50 may breed bacteria and mold. Conditions that can be formed.

Therefore, if the vehicle is turned off after driving for more than 5 minutes, as will be described later, in the start-off mode S80, the ultraviolet lamp 130 is turned off after a predetermined time (set to 10 minutes in the embodiment of the present invention). (S81). Therefore, even after the vehicle is turned off, the germicidal lamp 130 is finally operated for 10 minutes to completely sterilize bacteria and fungi 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 as the continuous mode (S70) for continuously turning on the sterilization lamp 130 irrespective of the temperature change of the evaporator 50, so that the control unit 110 drives the lamp primary The lamp on maintenance step (S71) for continuously turning on the sterilization 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 maintenance step (S71). The vehicle off determination step (S72) to be determined is executed. When it is determined that the vehicle start is turned off in the vehicle off determination step S72, the start off mode S80 is executed.

The continuous mode S70 is for sterilizing the evaporator 50 continuously while the vehicle startup is turned on. When the vehicle startup is determined 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.

Next, if it is determined that the vehicle startup is turned on / off in step S10 (S72), the auxiliary power of the rechargeable battery 300 is applied at a predetermined time regardless of the temperature change of the evaporator 50. The case of the start-off mode S80 for intermittently driving the sterilization lamp 130 will be described.

First, in the start-off mode (S80), the power supply unit 200 cuts off the vehicle power from the vehicle battery 80 and applies the auxiliary power charged to the rechargeable battery 300. An additional lamp driving step S81 is performed to turn the lamp 130 on for a predetermined time (in the embodiment of the present invention, set to 10 minutes) and then turn off the lamp 130. Therefore, after the vehicle startup is turned off, the evaporator 50 is further irradiated for 10 minutes through the sterilization lamp 130 to completely sterilize the bacteria and fungi that can inhabit here.

After the lamp additional driving step (S81), the lamp driving cycle determination step (S82) for determining whether a predetermined time has passed after the driving of the sterilization lamp 130 is stopped, and the predetermined time in the lamp driving cycle determination step (S82). If it is determined that the elapsed time is passed, the lamp sterilization lamp 130 is driven again, and then the lamp intermittent driving step S83 is performed.

Lamp driving cycle determination step (S82) is a predetermined time after the vehicle startup is off (30 minutes to 60 minutes in the embodiment of the present invention, preferably set to 30 minutes to 60 minutes.) This is the evaporator 50 This is to prevent the growth of bacteria in the exposed state in the air.

When the lamp intermittent driving step S83 determines that a predetermined time has passed in the lamp driving cycle determining step S82, the auxiliary lamp of the rechargeable battery 300 is applied to drive the sterilizing lamp 130 intermittently for 2 to 5 minutes. After turning off, the sterilization lamp 130 is off again, and returns to the lamp driving cycle determination step (S82).

As such, even when the vehicle startup is turned off, the evaporator 50 and the surroundings thereof are intermittently sterilized by the sterilization lamp 130 intermittently.

Therefore, even if the cooling unit is immediately driven by turning on the vehicle startup, it is possible to always supply comfortable air to the interior of the vehicle. In addition, as described above, while driving the vehicle, the sterilization lamp 130 is driven by performing the automatic mode (S60) or the continuous mode (S70), and mixed in the air passing through the evaporator 50 and the cooling duct 31. By decomposing various organic matters, it is possible to keep the air inside the vehicle always comfortable.

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

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

Figure 3 shows the configuration of the start detection unit in the sterilization apparatus according to the present invention.

4 illustrates a vehicle power supply voltage level of a vehicle battery according to vehicle startup on / off.

5 is a flow chart for explaining the control operation of the evaporator sterilizer of the 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

200. Power supply 300. Rechargeable battery

Claims (5)

Evaporation of the vehicle air conditioning system for sterilizing the evaporator 50 by driving the sterilization lamp 130 disposed around the evaporator 50 of the vehicle air conditioning system according to a set control program by receiving the vehicle power of the vehicle battery 80. In the sterilizer for the equipment; The evaporator sterilizer 100 is; A start detection unit (160) detecting a vehicle power supplied from the vehicle battery (80) to detect a vehicle start on / off; A charging battery 300 capable of charging the vehicle power provided from the vehicle battery 80 and providing auxiliary power; When the vehicle start is turned on according to the detection result of the start detecting unit 160, the vehicle battery is supplied to the vehicle battery 80, and when the vehicle start is turned off, the rechargeable battery 300 is turned off. A power supply unit 200 for supplying an auxiliary power source; A timer 170 for measuring an on / off time of the sterilizing lamp 130; When the auxiliary power of the rechargeable battery 300 is supplied through the power supply unit 200, the sterilization lamp 130 is continuously driven for a predetermined time and then turned off, and the cycle is turned off after a predetermined time. A control unit 110 for driving control of the sterilizing lamp 130; Sterilizer for evaporator of the vehicle air conditioning system, characterized in that it comprises The method of claim 1, In the control unit 110; When the auxiliary battery of the rechargeable battery 300 is supplied, the sterilization lamp 130 is continuously driven for a predetermined time, and then the sterilization lamp 130 is turned off for 30 to 60 minutes and then again for 2 to 5 minutes. Sterilizing apparatus for an evaporator of a vehicle air conditioning system, characterized in that for continuously turning on. The method of claim 1, The start detection unit 160; A voltage level detector 161 for detecting a voltage level of the vehicle power applied from the vehicle battery 80; A microcomputer 162 outputting a signal of turning on the vehicle when the voltage level detected by the voltage level detecting unit 161 is equal to or higher than a set voltage level value, and outputting a signal of turning off the vehicle starting when the voltage level is lower than the set voltage level; Sterilizer for evaporator of the vehicle air conditioning system, characterized in that it comprises. Sterilization lamp 130 disposed around the evaporator 50 of the vehicle air conditioning system, the start detection unit 160 for detecting the vehicle start on / off by detecting the vehicle power provided from the vehicle battery 80, the vehicle If the vehicle is turned on according to a detection result of the charging battery 300 and the start detection unit 160 that can provide auxiliary power by charging the vehicle power provided from the battery 80, the vehicle When the vehicle power is supplied to the battery 80 and the vehicle startup is turned off, the power supply unit 200 is provided to supply the auxiliary power of the rechargeable battery 80. In the control method of the sterilizer for the evaporator of the vehicle air conditioning system for sterilizing the evaporator (50) by driving (130); A vehicle startup determination step (S10) (S72) for determining whether the vehicle startup is on / off through the start detection unit (160); When it is determined that the vehicle startup is turned off in the vehicle startup determination step (S10) (S72), the power supply unit 200 applies the auxiliary power of the rechargeable battery 300 to continuously operate the sterilization lamp 130 for a predetermined time. A lamp additional driving step (S81) which is turned off after being driven by driving; A lamp driving cycle determining step (S82) for determining whether a predetermined time has passed after the lamp additional driving step (S81); When it is determined that a predetermined time has elapsed in the lamp driving cycle determination step (S82), the auxiliary battery of the charging battery 300 is applied to drive the sterilization lamp 130 and then off, and the sterilization lamp 130 is turned off. When the lamp intermittent driving step (S83) to return to the lamp driving cycle determination step (S82); Control method of the sterilizer for the evaporator of the vehicle air conditioning system comprising a. The method of claim 3, wherein The predetermined time of the lamp driving cycle determination step (S82) is set to 30 minutes to 60 minutes; In the lamp intermittent driving step (S83), the sterilizing lamp 130 is driven for 2 to 5 minutes in a row after the control method of the sterilizer for an evaporator of a vehicle air conditioning system, characterized in that set to off.

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