KR101205320B1 - Air conditioning system for automotive vehicles - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner, and aims to prevent an increase in cations generated from an ion generator while actively responding to changes in an environment inside a vehicle to an environment suitable for increasing cations.

In order to achieve the above object, the present invention includes an ion generator that emits negative and positive ions in the inner passage of the air conditioning case, and the ion generator is negative, which is a clean mode or negative to increase the discharge amount of the positive ions. A vehicle air conditioner operating in an ion mode for reducing the amount of discharge of cations, the vehicle air conditioner comprising: a cation increasing environment detecting means for detecting whether an environment in a vehicle is suitable for increasing cations; When the data input from the cation increase environment sensing means is changed to data suitable for cation increase, it is provided with a controller for controlling the ion generator to reduce the amount of cation generated by the ion mode, cation increase environment detection means, the vehicle interior The humidity sensor for detecting the relative humidity of the controller, the controller alternately controls the ion generator in the clean mode and ion mode, the relative humidity in the cabin input from the humidity sensor is the first reference humidity built in the controller When the relative humidity is 40% or less or the relative humidity of 80% or more, which is the second reference humidity set higher than the first reference humidity, the ion generator is controlled in the ion mode; The ion mode conversion time of the ion generator due to the cation increasing environment is controlled to be included in the clean mode control time.

Description

Air Conditioning System for Vehicles {AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to a vehicle air conditioner, and more particularly, to a vehicle air conditioner capable of preventing an increase in cation generated from an ion generator while actively dealing with it even if the environment inside the vehicle is changed to an environment suitable for cation increase. It is about.

The automobile is provided with an air conditioner for cooling and heating the inside of the room. As shown in FIG. 1, the air conditioning apparatus includes an air conditioning case 10, and a blower 20 is installed in the air conditioning case 10.

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 air and then sucks the inside and outside air in the air conditioner case 10. Blow into the inner passage (12).

The air conditioner includes an evaporator 30 installed in the inner passage 12 of the air conditioner 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 12. Thus, cooled air can be introduced into the interior of the vehicle.

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

The ion generator 40 includes an anion discharge electrode 42 and a cation discharge electrode 44 extending at intervals toward the inner passage 12. The anion and cation discharge electrodes 42 and 44 emit high voltage pulses directly into the air of the inner passage 12 to generate anions and cations, respectively.

The ion generator 40 introduces the generated negative and positive ion particles into the evaporator 30. Therefore, bacteria, fungi and odors inhabiting the evaporator 30 are disinfected and deodorized. This improves the cleanliness of the air supplied to the vehicle interior.

On the other hand, the ion generator 40 is alternately controlled in alternating between the clean mode and the ion mode.

Clean mode is to increase the amount of negative and positive ions to increase the effect of sterilization of indoor air.The mode of negative and positive ions is about equal, and the mode of ion decreases the amount of negative and positive ions to discharge into the room. This mode is to reduce the number of anions than the cation.

The ion generator 40 is alternately controlled in the clean mode and the ion mode, thereby increasing the sterilization and deodorization effect of the indoor air as much as possible and at the same time reducing the generation of cation water harmful to the human body.

However, the conventional ion generator 40 has a structure that generates negative and positive ions only as set in advance without considering the surrounding environment affecting negative and positive ion particles, so that the surrounding environment may be changed to increase cation. In this case, it is pointed out that it is not possible to cope with this.

That is, according to the recent research results, the anion water is decreased and the cationic water is increased when the humidity in the air is very high or very low and at low pressure. Therefore, as the humidity is very high or very low and the low pressure, it is reported as an environment superior to the cation.

In view of this fact, the conventional ion generator 40 generates negative and positive ions only as preset without considering the surrounding environment affecting the negative and positive ion particles, so that the surrounding environment is suitable for increasing the cation. For example, when the humidity is very high or very low and the pressure is changed to low pressure, the number of cations is rapidly increased.

In particular, in a clean mode where the number of cations is increased, when the surrounding environment is changed to a low humidity or a high humidity and a low pressure state, the number of cations is further increased. Because of this disadvantage, a large amount of cations flow into the cabin. It has been pointed out that the problem of creating a harmful environment inside the vehicle.

The present invention has been made to solve the conventional problems as described above, the object is to minimize the amount of cation generated by converting the ion generator into the ion mode when the environment in the vehicle is changed to the environment suitable for cation increase, The present invention provides a vehicle air conditioner.

Another object of the present invention is to provide a vehicle air conditioner that can significantly reduce the number of cations introduced into the vehicle by minimizing the amount of cations generated when the environment inside the vehicle is changed to an environment suitable for increasing the cation. .

It is still another object of the present invention to provide a vehicle air conditioner that can prevent the harmful environment from being created harmfully by greatly reducing the number of cations introduced into the vehicle interior.

In order to achieve this object, the vehicle air conditioner of the present invention, the ion generator for emitting negative and positive ions in the inner passage of the air conditioning case, the ion generator is a clean mode to increase the discharge amount of negative, positive ions A vehicle air conditioner operated in a clean mode or an ion mode for reducing an amount of positive ions, the vehicle air conditioner comprising: a cation increasing environment detecting means for detecting whether an environment inside a vehicle is suitable for increasing a cation; And a controller configured to reduce the amount of cation generated by converting the ion generator into an ion mode when the data inputted from the cation increasing environment sensing means is changed to data suitable for cation increase.

Preferably, the cation increasing environment detection means, the humidity sensor for detecting the relative humidity in the vehicle, the controller, the relative humidity in the vehicle input from the humidity sensor is less than or equal to a predetermined first reference humidity The ion generator is controlled in an ion mode when the second reference humidity is higher than the first reference humidity.

According to the vehicular air conditioner according to the present invention, when the environment in the vehicle is changed to increase the cation, the ion generator is converted into the ion mode to reduce the amount of cation generated, so that the environment in the vehicle is suitable for the increase of the cation. Even if there is a change, there is an effect to proactively cope with it.

In addition, when the environment inside the vehicle is changed to increase the cation, the number of cations introduced into the vehicle is greatly reduced, so that the number of cations in the vehicle increases even though the environment in the vehicle is suitable for the increase of the cation. Do not let. Therefore, there is an effect that the interior of the vehicle is not harmfully created.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings (the same components as those in the prior art are denoted by the same reference numerals).

First, prior to looking at the features of the vehicle air conditioner according to the present invention, a brief look at the ion generator of the vehicle air conditioner with reference to FIGS.

The ion generator 40 includes an anion discharge electrode 42 and a cation discharge electrode 44. The anion and cation discharge electrodes 42 and 44 are arranged side by side at intervals with respect to each other, and extend toward the inner passage 12 of the air conditioning case 10.

In particular, it extends up and down side by side toward the inside of the inner passage 12, and emits high voltage pulses directly in the air of the inner passage 12 to generate anions and cations, respectively.

Meanwhile, as shown in FIG. 3, the ion generator 40 is alternately controlled in a clean mode and an ion mode.

Clean mode is to increase the amount of negative and positive ions to increase the effect of sterilization of indoor air.The mode of negative and positive ions is about equal, and the mode of ion decreases the amount of negative and positive ions to discharge into the room. This mode is to reduce the number of anions than the cation. In general, clean mode and ion mode operate repeatedly at regular intervals.

Next, the features of the vehicle air conditioner according to the present invention will be described in detail with reference to FIGS. 2 and 3.

First, referring to FIG. 2, the air conditioner of the present invention includes a cation increasing environment detecting means 50 for detecting whether an environment in a vehicle is suitable for increasing cation.

The cation increasing environment sensing means 50 is composed of a humidity sensor 52. The humidity sensor 52 is installed near the driver's seat, detects the relative humidity in the vehicle cabin, and then inputs the detected relative humidity to the controller 60 to be described later.

Referring again to FIG. 2, the air conditioner of the present invention includes a controller 60 for controlling the ion generator 40 by processing data input from the cation increasing environment detecting means 50.

The controller 60 is equipped with a microprocessor and includes a comparator 62 and a controller 64.

Comparing unit 62, the second reference humidity set in the relative humidity in the cabin input from the humidity sensor 52 of the cation increasing environment detection means 50 is less than or equal to the first reference humidity set in advance or higher than the first reference humidity. Compare whether or not it is abnormal.

As a result of the comparison in the comparison unit 62, the control unit 64 determines that the environment in the vehicle is suitably changed to increase the number of cations if the relative humidity in the vehicle is less than or equal to the first reference humidity or more than the second reference humidity. It is determined that the ion generator 40 is controlled to the "ion mode".

Therefore, it is possible to reduce the amount of negative and positive ions generated by the ion generator 40. As a result, the number of cations flowing into the vehicle interior is greatly reduced. This inherently blocks the increase in the number of cations, thus preventing the interior environment of the vehicle from being harmfully formed.

On the other hand, the controller 60, if the relative humidity in the cabin input from the humidity sensor 52 exceeds the first reference humidity or less than the second reference humidity, that is, if the return between the first reference humidity and the second reference humidity The ion generator 40 is returned to its original mode by determining that the cation increasing environment is lost.

Then, the controller 60, as shown in Figure 3, in the process of the ion generator 40 is controlled in the "clean mode", the ion generator 40 to the "ion mode" (A) by the humidity change. When converted, the control so that the "ion mode" conversion time of the ion generator 40 by the change of humidity is included in the "clean mode" control time. This is to avoid affecting the conversion cycle of the overall ion mode and clean mode.

The first reference humidity built in the controller 60 is set to 40% relative humidity, and the second reference humidity is set to 80% relative humidity.

This is because a low humidity environment with a relative humidity of 40% or less and a high humidity environment with a relative humidity of 80% or more are found to be suitable for increasing the number of cations. In particular, in a high-humidity environment with a relative humidity of 80% or more, the water particles in the air become large, resulting in a very large cluster of water molecules. As a result, the surrounding ions become cationic one-sided.

For reference, the anion was found to be most stable when combined with water in a small cluster of 0.5 to 1 nm, with a relative humidity of 40 to 60% corresponding to a cluster size of 0.5 to 1 nm. Therefore, when the relative humidity is 40 to 60%, the surrounding ions are changed to the anion one side.

Next, a control method of the vehicle air conditioner having such a configuration will be described with reference to FIGS. 2 and 4.

First, in a state in which the ion generator 40 is turned on (S101), it is determined whether the ion generator 40 is controlled in a clean mode (S103).

As a result of the determination, if it is controlled in the clean mode, it is determined whether the relative humidity in the vehicle interior input from the humidity sensor 52 is equal to or less than the first reference humidity (S105). For example, it is determined whether the relative humidity is 40% or less.

As a result of the determination, if the first reference humidity is equal to or less, it is determined that the interior of the vehicle is changed to an environment suitable for increasing the cation, and the ion generator 40 is controlled to the "ion mode" (S107).

Then, the ion generator 40 reduces the number of cations while being converted to the "ion mode". As a result, even if the environment in the vehicle is suitable for increasing the cation, the number of cations introduced into the vehicle is drastically reduced. As a result, the environment in the vehicle interior is not harmfully created.

On the other hand, if the determination result is not less than the first reference humidity (S105-1), it is determined again whether the relative humidity in the vehicle room input from the humidity sensor 52 is greater than or equal to the second reference humidity (S109). For example, it is determined whether the relative humidity is 80% or more.

As a result of the determination, if the second reference humidity is equal to or higher, it is determined that the environment in the vehicle room has been changed to increase the cation, and the ion generator 40 is controlled to the ion mode (S107).

Then, the ion generator 40 is converted to the ion mode to reduce the number of cations. As a result, even if the environment in the vehicle is suitable for increasing the cation, the number of cations introduced into the vehicle is greatly reduced.

According to the present invention having such a configuration, since the ion generator 40 is converted to an "ion mode" when the environment in the vehicle is changed to be suitable for increasing the cation, the amount of cation generated is minimized. Even if it is appropriate to increase, it can actively cope with it.

In addition, even if the environment inside the vehicle is suitably changed to increase the cation, while actively coping with it, the structure greatly reduces the number of cations flowing into the vehicle. It doesn't work. Therefore, even though the environment in the vehicle is suitable for increasing the cation, the environment in the vehicle is not harmfully formed.

Next, Figure 5 is a view showing another embodiment of a vehicle air conditioner according to the present invention.

In another embodiment of the present invention, the cation increasing environment detecting means 50 further includes an air pressure sensor 54.

Atmospheric pressure sensor 54, a kind of pressure sensor, serves to detect the air pressure in the vehicle interior and input to the controller (60).

When the air pressure data in the vehicle is input from the air pressure sensor 54, the controller 60 determines whether the input air pressure is equal to or less than the preset standard air pressure. The ion generator 40 is controlled to be in the "ion mode" by determining that it is changed to be suitable to increase the power.

Then, the ion generator 40 reduces the amount of negative and positive ions generated. As a result, the number of cations in the compartment does not increase, even though the air pressure in the compartment changes suitably to increase the cation. Therefore, the indoor environment of the vehicle is not harmfully created.

On the other hand, the reference air pressure built in the controller 60 is preferably set to 1013mmbar, which is atmospheric pressure. This is because a low pressure of 1013 mmbar or less has been found to be a suitable environment for increasing the number of cations.

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 described in the claims.

1 is a view showing a conventional vehicle air conditioner,

2 is a view showing the vehicle air conditioner according to the present invention,

3 is a graph showing that the ion generator constituting the air conditioning apparatus of the present invention is alternately controlled in a clean mode and an ion mode;

4 is a flowchart showing a vehicle air conditioner control method according to the present invention;

5 is a view showing another embodiment of a vehicle air conditioner according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: air conditioning case 12: internal passage

20: blower 30: evaporator

40: ion generator 42: anion discharge electrode

44: cation discharge electrode 50: cation increase environment sensing means

52: humidity sensor 54: barometric pressure sensor

60: controller 62: comparison unit

64: control unit

Claims (5)

An inner passage 12 of the air conditioning case 10 includes an ion generator 40 that emits negative and positive ions, and the ion generator 40 includes a clean mode that increases the discharge amount of negative and positive ions. In the vehicle air conditioner operating in the ion mode to reduce the amount of discharge of cations, Cation increase environment detecting means (50) for detecting whether the environment in the vehicle is an environment where cations increase; And a controller 60 which controls to reduce the amount of cation generated by switching the ion generator 40 to an ion mode when the data inputted from the cation increasing environment detecting means 50 is changed to increase cation. , The cation increasing environment detecting means 50, the humidity sensor 52 for detecting the relative humidity in the vehicle interior, The controller 60 alternately controls the ion generator 40 in a clean mode and an ion mode, but has a first relative humidity built into the controller 60 inputted from the humidity sensor 52. When the relative humidity, which is a reference humidity, is 40% or less, or when the relative humidity, which is the second reference humidity set higher than the first reference humidity, is 80% or more, the ion generator 40 is controlled in an ion mode; And the ion mode conversion time of the ion generator 40 by the cation increasing environment is included in the clean mode control time. delete delete The method of claim 1, The cation increasing environment detecting means 50 further includes a barometric pressure sensor 54 for detecting the air pressure in the vehicle interior, The controller (60), the air conditioner for the vehicle, characterized in that for controlling the ion generator 40 in the ion mode when the air pressure in the cabin input from the air pressure sensor (54) is less than a predetermined reference pressure. delete

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