KR20090005570A - Ionizer of air conditioning system for automotive vehicles - Google Patents

Abstract

An ion generator of air conditioning system for the vehicles is provided that the condition inside the vehicles can be maintained harmless to the human body. An ion generator of air conditioning system for the vehicles comprises a case(10) for air conditioner including a outside air damper(12), an inside air damper(14) and an inner path(16), an intake door(15) moving between an inside air mode location (X) opening the inside air damper and an outside air mode(Y) opening the outside air damper, an ion generator(40) radiating the ozone in the inner path.

Description

IONIZER OF AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

1 is a cross-sectional view showing a general air conditioning system and an ion generator,

2 is a view showing an ion generator of a vehicle air conditioning system according to the present invention;

3 is a flowchart illustrating a method for controlling an ion generator of a vehicle air conditioning system according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: air conditioning case 12: outside air inlet

14: bet prayer entrance 15: intake door

15a: Internal and external air switch 16: Internal passage

20: blower 30: evaporator

40: ion generator 42: main body

44: high voltage generator 46: negative ion discharge electrode

48: cation discharge electrode 50: air mode detection means

60: ozone detection means 70: controller

72: Ion Mode 74: Clean Mode

76: ozone mode 78: control unit

79: ion / clean alternating mode

The present invention relates to an ion generator of a vehicle air conditioning system, and more particularly, to an ion generator of a vehicle air conditioning system capable of efficiently sterilizing and deodorizing various pollutants contained in the outside air.

The vehicle is equipped with an air conditioning system to control the air temperature in the room. This air conditioning system, as shown in Figure 1, has an air conditioning case 10, the air conditioning case 10, the outdoor air inlet 12 for introducing the outside air, and the internal air inlet 14 for introducing the bet And an intake door 15 for selectively opening any one of these internal and external air inlets 12 and 14.

The intake door 15 is rotated to the bet mode position X or to the air mode position Y by operating the internal / external air selector switch 15a in the “bet mode” or “external mode”, where the bet The internal airway inlet 14 is opened at the mode position X, and the outdoor airway inlet 12 is opened at the external air mode position Y. Thus, the bet or the outside air can be selectively introduced.

The air conditioning system includes a blower 20. The blower 20 includes a blower fan 22 and a blower motor 24 for driving the blower fan 22. The blower 20 sucks outside air or inside, and sucks the inside and outside air inside the air conditioning case 10. Blowing into the passage 16.

The air conditioning system includes an evaporator 30 installed in the inner passage 16 of the air conditioning case 10.

The evaporator 30 has a plurality of tubes (not shown) through which the refrigerant can flow, and cools the air passing through the inner passage 16. Thus, cooled air can be introduced into the interior of the vehicle.

The air conditioning system includes an ion generator 40 provided upstream of the evaporator 30.

The ion generator 40 includes a main body 42, a high voltage generator 44 embedded in the main body 42, an anion discharge electrode 46 and a cationic discharge electrode extending at intervals toward the inner passage 16. 48 is provided. In particular, the anion and cation discharge electrodes 46 and 48 emit high voltage pulses directly into the air of the inner passage 16 to generate anions, cations and ozone (O ₃ ), respectively.

The ion generator 40 is operated by operating the ion switch 40a to generate negative, positive ions and ozone, and the generated negative, positive ions and ozone particles inhabit the evaporator 30, including bacteria, mold and odors. It also makes it possible to sterilize and deodorize the air supplied to the room. Therefore, the cleanliness of the air supplied to the room is increased to create a comfortable indoor environment.

By the way, the conventional ion generator 40 generates a constant amount of anions, cations and ozone regardless of the degree of contamination of the air introduced into the air conditioning case 10, so that the contamination of the introduced air is very severe. It is pointed out that it cannot cope with this.

In particular, in the "outdoor mode", when a large amount of contaminants such as bacteria, fungi and odors are contained in the outside air, a large amount of bacteria, molds and odors contained in the outside air may be included with existing negative and positive ions and ozone. It is pointed out that the problem can not be sterilized and deodorized.

On the other hand, by improving the structure of the ion generator 40 may increase the amount of ozone having excellent sterilization and deodorization ability, for example, may increase the amount of ozone generated by increasing the magnitude of the voltage applied to the high voltage generator. However, in this case, there is a problem that excessively harmful ozone is generated, there is a problem that the indoor environment of the vehicle is harmfully formed due to this problem.

The present invention has been made to solve the conventional problems as described above, the object is to increase the amount of ozone generated in the outdoor mode, the vehicle can efficiently sterilize and deodorize various pollutants contained in the outside air To provide an ion generator of the air conditioning system.

Another object of the present invention is to increase the amount of ozone generated in the outdoor mode, but when raised to a concentration harmful to the human body, by reducing the amount of ozone generated, the vehicle air conditioning that can prevent the harmful environment of the vehicle interior It is to provide an ion generator of the system.

In order to achieve the above object, the present invention provides an air-conditioning case having an airway inlet, an internal airway inlet, and an internal passage, and a motion between an airtight mode position for opening the internal airway inlet and an external air mode position for opening the external airway inlet. In-vehicle air conditioning system having an intake door and an ion generator for emitting negative and positive ions (Ion) and ozone (O ₃ ) in the inner passage, the outdoor mode detection for detecting whether the intake door is in the outdoor mode position state Means; Ozone detection means for detecting indoor ozone concentration of the vehicle; A controller for controlling the ion generator in accordance with a detection signal of the outside mode detection means and the ozone detection means; The controller, when a signal is input from the outside mode sensing means, increases the voltage applied to the ion generator to increase the discharge amount of negative and positive ions and ozone, and input from the ozone sensing means in the ozone mode When the indoor ozone concentration is above a predetermined ozone concentration, it is characterized in that it comprises a clean mode for reducing the discharge amount of negative, positive ions and ozone by reducing the voltage applied to the ion generator.

Preferably, the controller, when the signal of the outside mode detection means is erased, the ion mode by applying a lower voltage to the ion generator than in the clean mode to further reduce the discharge amount of negative, positive ions and ozone And an ion / clean alternating mode for alternately controlling the clean mode at predetermined time intervals.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an ion generator of a vehicle air conditioning system according to the present invention will be described in detail with reference to the accompanying drawings (the same components will be described with the same reference numerals).

2 is a view showing the ion generator of the vehicle air conditioning system according to the present invention. First, prior to looking at the features of the ion generator according to the present invention, a brief look at the ion generator of the vehicle air conditioning system with reference to FIG.

The ion generator 40 includes a main body 42, a high voltage generator 44 embedded in the main body 42, an anion discharge electrode 46 and a cationic discharge electrode extending at intervals toward the inner passage 16. 48 is provided.

The ion generator 40 is operated by operating the ion switch 40a to generate negative, positive ions and ozone. Therefore, the generated negative and positive ions and ozone particles enable sterilization and deodorization of the evaporator 30, and deodorization and sterilization of odors, bacteria and mold in the air.

Next, the features of the ion generator of the vehicle air conditioning system according to the present invention will be described in detail with reference to FIG.

First, the ion generator of the present invention is provided with an outside air mode detecting means 50 for detecting whether the intake door 15 is in the outside air mode position (Y) state.

The outside air mode detecting means 50 is constituted by the inside and outside air changeover switches 15a. The internal and external air switch 15a is a switch for selecting the intake door 15 to the external air mode position Y or the internal air mode position X, and the user selects the intake door 15 to the external air mode position Y. Detect switching to

And, the ion generator of the present invention, the ozone detecting means 60 for detecting the indoor ozone concentration of the vehicle.

The ozone detecting means 60 is a kind of gas sensor that senses the concentration of ozone contained in the indoor air and inputs the detected ozone concentration value to the controller 70 to be described later.

The ozone sensor is installed at a position most suitable for detecting an average ozone concentration in a room, for example, a console box between a front seat and a rear seat, which is the center of the room, or a headrest of a driver's seat. desirable.

Referring again to FIG. 2, the ion generator of the present invention includes a controller 70.

The controller 70 is equipped with a microprocessor and includes an ion mode 72 for reducing the amount of negative and positive ions and ozone, and a clean mode for increasing the amount of negative and positive ions and ozone. Clean mode 74, the ozone mode 76 for increasing the amount of negative and positive ions and ozone, and the ion generator 40 according to the position of the intake door 15 and the ozone concentration in the room. ) Is controlled by the ozone mode 76, the clean mode 74, or the ion mode 72.

The ion mode 72 is a mode for reducing the amount of negative and positive ions and ozone to minimize the amount of cations and ozone flowing into the vehicle interior, and includes corresponding ion mode data.

The clean mode 74 is a mode for increasing the amount of negative and positive ions and ozone to increase the sterilization and deodorization effect of pollutants, and incorporates clean mode data corresponding thereto.

The ozone mode 76 is a mode for maximizing the generation of negative and positive ions and ozone to maximize the effect of sterilization and deodorization of pollutants, and includes corresponding ozone mode data.

When a signal is input from the outside mode detection means 50, the controller 78 determines that the outside air having a high degree of air pollution is introduced into the interior of the vehicle at present, and operates the high voltage generator 44 of the ion generator 40 in the ozone mode. Control with 76. In particular, by controlling to the ozone mode 76 based on the ozone mode data, the voltage applied to each of the anion discharge electrode 46 and the cation discharge electrode 48 is increased.

Therefore, a large amount of negative and positive ions and ozone can be generated in each of the anion and cationic discharge electrodes 46 and 48, thereby causing a large amount of negative and positive ions and ozone to generate a large amount of bacteria and mold contained in the outside air. It can effectively sterilize and deodorize odors.

In addition, the controller 78 controls the high voltage generator 44 in the ozone mode 76, and if the indoor ozone concentration input from the ozone sensing means 60 is equal to or higher than the "set ozone concentration", It is determined that the amount of ozone in the room has increased to be harmful to the passengers, and the high voltage generator 44 of the ion generator 40 is controlled in the clean mode 74. In particular, by controlling the clean mode 74 based on the clean mode data, the voltage applied to each of the anion discharge electrode 46 and the cation discharge electrode 48 is reduced.

Therefore, a small amount of negative and positive ions and ozone can be generated in each of the anion and cation discharge electrodes 46 and 48, thereby reducing the amount of ozone introduced into the vehicle interior to the maximum, as a result, in the ozone mode. It is possible to prevent the ozone sudden increase in the room caused by (76), and to prevent the ozone spike in the room, thereby preventing the interior of the vehicle from being harmfully formed by ozone.

Here, in the ozone mode 76, the number of cations and ozone flowing into the vehicle interior is set to maintain approximately 100,000 or more, and in the clean mode 74, the number of cations and ozone flowing into the vehicle interior is approximately 10. It should be set to maintain the full capacity, at this time, when a voltage of about 4.0 kV to the high voltage generator 44 of the main body 42 is controlled in the ozone mode 76, the high voltage generator ( Applying a voltage of about 3.2 kV to 44 controls the clean mode 74.

In addition, the "set ozone concentration" built into the control unit 78 is set to about 0.05 ppm. This is because the safety standard value indoor ozone concentration allowed by the World Health Organization (WHO) is less than 0.05 ppm.

On the other hand, the controller 78 controls the high voltage of the main body 42 based on the ion mode data when the ozone concentration of the ozone detecting means 60 is equal to or higher than the "set ozone concentration" in the state controlled by the ozone mode 76. The generator 44 may be controlled by the ion mode 72.

This, when the indoor ozone concentration is above the "set ozone concentration", by reducing the amount of negative and positive ions and ozone generated in each of the anion and cation discharge electrodes (46, 48) as possible, the harmful environment of the room created by ozone To stop them as quickly as possible.

Here, in the ion mode 72, the number of cations and ozone flowing into the interior of the vehicle should be set to maintain approximately 30,000 or less, at this time, about 2.5 kW to the high voltage generator 44 of the ion generator 40 When the voltage is applied, the ion mode 72 is controlled.

According to the present invention having such a configuration, since the amount of ozone generated is increased in the "outdoor mode", the increased ozone can efficiently sterilize and deodorize various contaminants contained in the outside air.

In particular, when a large amount of bacteria, fungi and odors are introduced into the outside air, these bacteria, fungi and odors can be efficiently sterilized and deodorized. Therefore, the air supplied to the room can be kept comfortable at all times.

In addition, the present invention is to increase the amount of ozone in the "outdoor mode", but when raised to a concentration harmful to the human body, it is a structure that reduces the amount of ozone, thus creating a harmful environment in the room that can be formed according to the increase of ozone You can block in advance. Therefore, the indoor environment of the vehicle can be always maintained in an atmosphere harmless to the human body.

On the other hand, the control unit 78 of the present invention, when the signal of the air mode detection means 50 is erased, that is, when the switch to the bet mode, ion / high voltage generating section 44 of the main body 42 Control is performed in the clean alternating mode 79.

The clean / ion alternating mode 79 is a mode in which the ion mode 72 and the clean mode 74 alternately operate at preset time intervals, and generate negative and positive ions and ions at predetermined time intervals. This mode is to increase or decrease. At this time, of course, the ion / clean alternating mode 79 contains alternating mode data.

The control unit 78 switches the high voltage generator 44 of the main body 42 to the ion mode 72 and the clean mode 74 based on the alternating mode data when the control unit 78 switches from the "outdoor mode" to the "betting mode". By alternating furnace control, the number of cations and ozone flowing into the vehicle interior is minimized without lowering the sterilization efficiency of various pollutants.

On the other hand, the control unit 78 is provided with a timer (not shown) for counting the time to operate the high voltage generator 44 alternately in the ion mode 72 and the clean mode 74 at predetermined time intervals. It is preferable that the set time interval at this time is about 15 minutes.

Next, a control method of the present invention having such a configuration will be described with reference to FIGS. 2 and 3.

First, in a state where the ion generator is ON (S101), the controller 78 determines whether the intake door 15 is in the outdoor mode position Y (S103).

As a result of the determination, if the air mode is Y, the high voltage generator 44 of the ion generator 40 is converted to the ozone mode 76 (S105). Then, each of the anion and cation discharge electrodes 46 and 48 generates a large amount of negative and positive ions and ozone, and the generated large amounts of negative and positive ions and ozone are introduced into the air conditioning case 10. Cleans efficiently while sterilizing and deodorizing. In particular, ozone efficiently sterilizes and deodorizes large quantities of bacteria, molds and odors contained in the outside air.

On the other hand, if the intake door 15 is not the outside mode position Y, that is, the bet mode position X, the controller 78 controls the high voltage generator 44 of the ion generator 40 in a predetermined time interval. In operation S107, the ion mode 72 and the clean mode 74 are alternately operated. Then, each of the anion and cation discharge electrodes 46 and 48 sterilizes and deodorizes the evaporator 30 and the bet efficiently while increasing or decreasing the amount of negative and positive ions and ozone.

2 and 3 again, in the state where the ozone mode 76 is maintained (S105), the controller 78 determines again whether the indoor ozone concentration of the vehicle is higher than or equal to a preset "ozone concentration". (S109).

As a result of the determination, if it is equal to or higher than the set ozone concentration, the high voltage generator 44 of the ion generator is converted into the clean mode 74 (S111). Then, each of the anion and cation discharge electrodes 46 and 48 reduces the amount of negative and positive ions and ozone. Therefore, it is possible to prevent the sudden increase of ozone and prevent the sudden increase of ozone, thereby preventing the interior of the vehicle from being harmfully formed due to ozone.

On the other hand, the control unit 78 may convert the high voltage generation unit 44 of the ion generator to the ion mode 72 in some cases, when the setting ozone concentration is greater than or equal to. Then, each of the anion and cation discharge electrodes 46 and 48 drastically reduces the amount of negative and positive ions and ozone. Therefore, it is possible to quickly block the ozone explosion in the room.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

As described above, according to the ion generator of the air conditioning system for a vehicle according to the present invention, since the ozone generation amount is increased in the outdoor air mode, various pollutants in the outdoor air can be efficiently sterilized and deodorized through the increased ozone. It can be effective.

In addition, when the indoor ozone concentration of the vehicle is increased to a concentration harmful to the human body, it is a structure that reduces the amount of ozone generated, it is possible to block in advance the harmful environment of the room that may occur due to the increase of ozone, thus, the interior of the vehicle There is an effect that can maintain the environment in a harmless environment at all times.

Claims (4)

The air-conditioning case 10 having the outside airway inlet 12, the inside airway inlet 14, and the inner passage 16, the bet mode position X for opening the inside airway inlet 14, and the outside airway inlet ( 12, an intake door 15 which moves between the open air mode positions Y and an ion generator 40 which discharges negative and positive ions and ozone O ₃ to the inner passage 16. In the vehicle air conditioning system provided, Air mode detecting means (50) for detecting whether the intake door (15) is in the air mode position (Y) state; Ozone detecting means (60) for detecting indoor ozone concentration of the vehicle; A controller (70) for controlling the ion generator (40) in accordance with the detection signal of the outside mode detecting means (50) and the ozone detecting means (60); The controller 70, When a signal is input from the outside mode detecting means 50, the ozone mode 76 increases the voltage applied to the ion generator 40 to increase the amount of negative and positive ions and ozone, and the ozone mode 76. When the indoor ozone concentration input from the ozone sensing means 60 is higher than a preset ozone concentration, the clean mode 74 reduces the voltage applied to the ion generator 40 to reduce the amount of negative and positive ions and ozone. A vehicle air conditioning system ion generator comprising a). The method of claim 1, The controller 70, When the signal of the external mode detecting means 50 is erased, an ion mode 72 is further applied to the ion generator 40 to further reduce the discharge amount of negative and positive ions and ozone than the clean mode. And an ion / clean alternating mode (79) for alternatingly controlling the clean mode (74) at predetermined time intervals. The method according to claim 1 or 2, The controller 70, A voltage of 4.0 kV is applied to the ion generator 40 to control the ozone mode 76, and a voltage of 3.2 kV is applied to the ion generator 40 to control the clean mode 74. An ion generator of a vehicular air conditioning system, characterized in that to control the ion mode (72) by applying a voltage of 2.5 kV to the generator (40). The method according to claim 1 or 2, The outside mode detecting means 50, Internal and external air switch 15a for switching the intake door 15 to the external air mode position Y, The internal and external air conversion switch (15a), the ion generator of the vehicle air conditioning system, characterized in that for detecting the user to switch the intake door (15) to the outdoor mode position (Y).

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