KR100656005B1 - Device for sterilization evaporator of air conditioner and method for control the same - Google Patents

Abstract

The present invention relates to an apparatus for sterilizing an evaporator of an air conditioning system and a method of controlling the same. In an air conditioning system in which a plasma reactor is positioned at a front end portion of an evaporator, an ozone discharge door is further installed at a rear end of the evaporator, thereby providing a general mode (normal and heating and heating). Mode), do not operate the plasma reactor, only in the evaporator sterilization mode to turn on the plasma reactor to sterilize the evaporator by ozone, and then to discharge the residual ozone after the evaporator sterilization to the outside, The purpose of the present invention is to provide an evaporator sterilizer and a control method of the air conditioning system, which can prevent the phenomenon which may enter the room and damage the driver and the passenger.

Air Conditioning System, Plasma Reactor, Ozone Exhaust Door, Evaporator Sterilization

Description

Device for sterilization evaporator of air conditioner and method for control the same}

1 and 2 is a schematic diagram showing a mode for cooling and heating as an evaporator sterilization apparatus of an air conditioning system according to the present invention,

Figure 3 is an evaporator sterilization apparatus of the air conditioning system according to the present invention, the configuration of the same state as in the cooling mode of Figure 1,

4 and 5 is a schematic view showing the evaporator sterilization mode of the evaporator sterilization apparatus of the air conditioning system according to the present invention,

6 to 8 is a schematic diagram illustrating an operating state during heating and cooling of the existing air conditioning system,

Figure 9 is a schematic diagram showing an air conditioning system of the type including a plasma reactor in the existing air conditioning system.

<Explanation of symbols for the main parts of the drawings>

10 blower 12 evaporator

14 heater 16 filter

18: first mode door 20: second mode door

22: duct for cooling air passage 24: first sensor

26: second sensor 28: ozone catalyst

30: plasma reactor 32: controller

34: ozone emission door

The present invention relates to an apparatus for sterilizing an evaporator of an air conditioning system and a method of controlling the same. More particularly, in an air conditioning system including a plasma reactor at a front end of an evaporator, an ozone discharge door is further provided at a rear end of the evaporator, and an evaporator sterilization mode. Ozone generated from plasma reactor is removed by sterilizing evaporator which is main pollutant by removing ozone and harmful gas and external odor. Then, it is allowed to escape to the outside without entering the room. The present invention relates to an evaporator sterilization apparatus of an air conditioning system and a method of controlling the same, which are turned off to prevent ozone from entering the room.

Usually, the vehicle air purification is performed by mounting a filter as an air purifier for outside air or bet in the vehicle air conditioning system.

6 to 8 are diagrams schematically showing a vehicle air conditioning system according to the prior art. Referring to this, the conventional air conditioning system includes a blower 10, an evaporator 12, and a heater 14. The front of the blower 10 is equipped with a filter 16 for removing dust of the inlet air.

In addition, in order to distinguish between air flow paths during cooling and heating, a pair of mode doors are mounted, and the first mode door 18 and the second mode door 20 are disposed at the front and rear positions of the heater 14. It is mounted to open the inlet and outlet of the heater 14 at the time of heating and to seal the cooling air passage duct 22, and to seal the heater 14 at the time of cooling and to open the duct 22 for the cooling air passage. It works.

The filter 16 only serves to filter only particles having a large particle such as dust or various pollutants when the outside air is introduced into the air conditioning system, and removes harmful gases or various mold bacteria and odors introduced from the outside. There is a problem that can not.

In particular, there is no defense against the odor of the air conditioner, in which the driver or passenger is very uncomfortable when starting the air conditioner with the most consumer complaints about the air conditioning system. The root cause of this odor is that the air conditioner evaporator provides conditions suitable for the breeding / growing of the fungus that enters the fungus, not only near the evaporator but also inside the air conditioning system. As the fungus is propagated as the blower is operated, there is a problem that the bad smell and headache and discomfort caused by the inhalation of passengers.

In view of these problems, the applicant of the present invention sterilizes the inlet air through the plasma reactor and at the same time easily removes harmful gases and external odors, a vehicle air conditioner having a plasma reactor that can comfortably maintain the vehicle interior air. No. 2003-0101678) has already been filed.

As shown in FIG. 9, a vehicle air conditioner having a previously-applied plasma reactor includes a heater, an evaporator, a blower, and a filter member. A sensing member including a first sensor 24 positioned at a rear end of the evaporator 12 or a second sensor 26 located at a rear end of the evaporator 12 or at a rear end of the ozone catalyst 28 to sense an air pollution level; A plasma reactor (30) mounted between the filter member and the evaporator to purify the inlet air; A controller (32) for controlling the operation of the plasma reactor (30) by checking the pollution level of the inlet air through the sensing signal of the sensing member; And a separate ozone catalyst 28 mounted to remove ozone generated in the plasma reactor 30.

The previously described reactor has a disadvantage that the plasma reactor, the evaporator, and the ozone catalyst are arranged in order along the indoor inflow direction of air on the flow path.

The ozone catalyst installed at the rear of the evaporator is made of a wide surface area carrier and coated with an ozone catalyst material on the surface to increase the chemical reaction. The weight of the whole system due to the carrier (catalyst coating) increases, and the carrier ( Catalytic coating) need to secure space for installation, the object is added to the flow path has additional drawback resistance, there is a disadvantage such as increased cost due to the carrier (catalyst coating).

In view of these drawbacks, the ozone catalyst is excluded from the construction of the air conditioning system of the existing vehicle equipped with the ozone catalyst, and the ozone catalyst is coated on the whole or part of the evaporator located at the rear end of the plasma reactor, A vehicle air conditioning system equipped with an ozone catalyst coating layer that sterilizes the inlet air and easily removes harmful gases and external odors, as well as weight reduction, ventilation resistance, and cost reduction. I have suggested.

Usually, ozone causes irritation of the respiratory organs or eyes when the concentration rises above a certain level, causing coughing and tingling of the eyes, and in severe cases, causing damage to the human body. It should not be allowed to enter.

Therefore, the air conditioning system of the vehicle provided with the ozone catalyst coating layer forms an ozone catalyst coating layer on the surface of the evaporator to decompose ozone generated from the plasma reactor, but some undecomposed residual ozone is introduced into the room to the driver and the passenger. There are disadvantages that can cause damage.

The present invention has been made in order to solve the above disadvantages, in the normal mode (normal and heating mode) do not operate the plasma reactor, in the sterilization mode of the evaporator by ozone sterilization of the evaporator is made by turning on the plasma reactor only And the evaporator sterilizer of the air conditioning system to prevent the residual ozone from entering the room and causing damage to the driver and passengers by allowing the ozone to be discharged to the outside after sterilization of the evaporator. The purpose is to provide a control method.

Evaporator sterilization apparatus of the air conditioning system according to the present invention for achieving the above object is: a first sensor for sensing the pollution of the inlet air located at the front or rear end of the filter member, and sensing the pollution of the air located at the rear end of the evaporator A sensing member consisting of a second sensor; A plasma reactor mounted between the filter member and the evaporator to purify the inlet air; A controller for checking the pollution level of the inlet air through a sensing signal of the sensing member to control on / off operation of the plasma reactor; A heater arranged at a rear end of the evaporator; In the air conditioning system of the vehicle comprising a first mode door and a second mode door installed in the front and rear positions of the heater to determine the heating and cooling path,

An ozone exhaust door is mounted on the duct between the rear end of the heater arranged at the rear end of the evaporator and the second mode door, and an actuator for opening or closing is mounted on the hinge shaft of the ozone exhaust door. It is characterized in that the actuator is connected to the output side of the controller for opening and closing control of the discharge door.

Control method of the evaporator sterilization apparatus of the air conditioning system according to the present invention for achieving the above object:

In the heating or cooling mode of the air conditioning apparatus, turning off the plasma reactor according to a control signal of the controller so that ozone does not flow into the room; In the evaporator sterilization mode of the air conditioner, turning on the plasma reactor by a control signal of the controller;

Operating the second mode door positioned at the rear end of the heater to block the exit path and the first mode door positioned at the front end of the heater to open the inlet path; Opening an ozone discharge door installed on a duct between the rear end of the heater and the second mode door in communication with the outside; Sterilizing the evaporator contaminated by harmful gas and odor by ozone generated in the plasma reactor; After the sterilization of the evaporator residual ozone is characterized in that the step consisting of being discharged to the outside through the ozone discharge door in the open state.

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

1 and 2 are schematic diagrams showing an evaporator sterilization apparatus of an air conditioning system according to the present invention, and a cooling and heating mode, and FIG. 4 shows an evaporator sterilization mode of an air conditioning system according to the present invention. Schematic diagram.

Typically, the vehicle air conditioning system comprises a blower 10, an evaporator 12 and a heater 14, and a filter 16 for removing dust is mounted in front of the blower 10.

As a configuration for implementing the present invention, located in the front or rear end of the filter 16, the first sensor 24 for sensing the pollution of the inlet air and the rear end of the evaporator 12 for sensing the pollution of the air A sensing member composed of a second sensor 26; A plasma reactor (30) mounted between the filter (16) and the evaporator (12) to purify the inlet air; And a controller 32 that controls the on / off operation of the plasma reactor 30 by checking the pollution level of the inlet air through the sensing signal of the sensing member.

In addition, the rear end of the evaporator 12 is arranged with a heater 14, the opening and closing of the inlet and the outlet of the heater 14, the agent for opening and closing the cooling air passage duct 22 directly connected to the room The first mode door 18 and the second mode door 20 are rotatably mounted at the front and rear positions of the heater.

Here, the ozone discharge door 34 is mounted between the first mode door 18 and the second mode door 20.

The hinge shaft of the ozone discharge door 34 is further equipped with an actuator (not shown) for opening or closing, or is connected to a link with an existing actuator (not shown), and controls the opening and closing of the ozone discharge door 34. The actuator is in turn connected to the output side of the controller 32.

The present invention is divided into an operation mode of turning off the plasma reactor during cooling and heating to fundamentally block ozone from entering the room, and an operation mode of turning on the plasma reactor to sterilize the contaminated evaporator.

Here, the state in which the above operation mode is made is as follows.

In the heating or cooling mode of the air conditioning apparatus, the plasma reactor 30 is turned off by the control signal of the controller 32 so that ozone does not flow into the room.

That is, as shown in FIGS. 1 to 3, since the inflow air is introduced into the room during the cooling and heating mode, and cooling or heating of the room is performed, ozone should not be included in the indoor inflow air. In accordance with the control signal of 32, the plasma reactor 30 is automatically turned off.

At this time, during cooling, the first mode door 18 and the second mode door 20 seal the inlet and outlet of the heater 14 and simultaneously open the cooling air passage duct 22 communicating directly to the room. do.

In the evaporator sterilization mode of the air conditioner, the plasma reactor 30 is turned on by the control signal of the controller 32.

At the same time, the second mode door 20 located at the rear end of the heater 14 blocks the exit path by the control signal of the controller 32.

In addition, the first mode door 18 located at the front end of the heater 14 opens the inlet path and closes the passage 22 directly communicating with the room.

In this way, the inlet air does not flow into the room at all by the first mode door 18 and the second mode door 20.

At this time, the ozone discharge door 34 is opened in communication with the outside, the actuator connected to the rotation point of the ozone discharge door 34 is driven according to the control signal of the controller 32, the ozone discharge door 34 Will be opened.

Therefore, the sterilization of the evaporator 12 contaminated by harmful gas and odor by the ozone generated in the plasma reactor 30 is performed.

Subsequently, the remaining ozone after the sterilization of the evaporator 12 is discharged to the outside through the ozone discharge door 34 in the open state.

As such, in the sterilization mode of the evaporator 12, ozone generated in the plasma reactor 30 is not introduced into the room, but is discharged to the outside through the ozone discharge door 34, so that residual ozone is introduced into the room and the driver And it is possible to prevent the phenomenon that may damage the passengers at source.

As described above, according to the evaporator sterilization apparatus and control method of the air conditioning system according to the present invention, the plasma reactor is turned on only in the evaporator sterilization mode without operating the plasma reactor in the normal mode (normal and heating and heating mode). After the sterilization of the evaporator by ozone is made, the residual ozone after the sterilization of the evaporator can be discharged to the outside, thereby preventing the residual ozone from entering the room and damaging the driver and passengers.

Claims (2)

A sensing member comprising a first sensor positioned at a front end or a rear end of the filter member to sense a pollution level of the inlet air, and a second sensor located at a rear end of the evaporator to sense a pollution level of air; A plasma reactor mounted between the filter member and the evaporator to purify the inlet air; A controller for checking the pollution level of the inlet air through a sensing signal of the sensing member to control on / off operation of the plasma reactor; A heater arranged at a rear end of the evaporator; In the air conditioning system of the vehicle comprising a first mode door and a second mode door installed in the front and rear positions of the heater to determine the heating and cooling path, An ozone exhaust door is mounted on the duct between the rear end of the heater arranged at the rear end of the evaporator and the second mode door, and an actuator for opening or closing is mounted on the hinge shaft of the ozone exhaust door. Evaporator sterilizer of the air conditioning system, characterized in that for connecting the actuator to the output side of the controller for controlling the opening and closing of the discharge door. In the heating or cooling mode of the air conditioning apparatus, turning off the plasma reactor according to a control signal of the controller so that ozone does not flow into the room; In the evaporator sterilization mode of the air conditioner, turning on the plasma reactor by a control signal of the controller; Operating the second mode door located at the rear end of the heater to block the exit path and at the same time the first mode door located at the front end of the heater to open the inlet path; Opening an ozone discharge door installed on a duct between the rear end of the heater and the second mode door in communication with the outside; Sterilizing the evaporator contaminated by harmful gas and odor by ozone generated in the plasma reactor; Residual ozone after the sterilization of the evaporator is released to the outside through the ozone discharge door in the open state control method of the evaporator sterilizer of the air conditioning system.

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