JP2003079710A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner with which a smell discharged from the inside of the air cleaner can be surely decomposed in a simple structure and further, the cost is reduced. SOLUTION: The air cleaner is operated by repeating an active state for performing an air cleaning function for a fixed period and a standstill state for stopping the air cleaning function for a fixed period. An ozone generating part 2 is located inside a casing 1 of the air cleaner and generates the ozone gas of prescribed concentration during the period of the standstill state. The remaining smell generated in the casing 1 is decomposed by the ozone generated by the ozone generating part 2 during the period of the standstill state. Air (atmosphere), with which discomfort is suppressed by this ozone decomposition, is exhausted from an air ejecting hole side 1B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier having functions such as an effect of removing odorous substances from indoor air.

[0002]

2. Description of the Related Art A conventional air purifier has a dust collecting function for removing pollutants such as dust, dust and cigarette smoke in the air.
Some have a deodorizing function of removing odorous components in the air such as cigarette odor.

However, in the above-mentioned conventional air purifier, odorous components such as cigarette odor adhering to the inside of the air purifier are discharged from the air suction port when the operation is stopped and from the air jet port when the operation is started. Therefore, there is a problem that the user feels uncomfortable. In addition, if the tobacco tar material is completely accumulated inside the air purifier, it is difficult to suppress the re-emission of odor unless it is extensively cleaned, so the time for cleaning the inside of the air purifier can be reduced. The cost is heavy.

In order to solve such a problem, an odor remaining inside the air purifier is cleaned by a photocatalytic purifying device provided inside the air purifier, and an air purifier is provided. An air purifier having a shutter function in its part to prevent odors leaking to the outside when stopped, and an air purifier having such a purifying device and a shutter function have been realized.

Further, in recent years, an air cleaner utilizing ozone gas has been realized.
An air purifier with a sterilizing function described in JP-A-1-313878 is known. This air purifier with sterilization function has an ozone storage chamber in the air passage adjacent to the dust collection filter, and the blower fan is off (when the air purification mode is off).
In addition, the ozone storage chamber and the dust collecting filter are filled with ozone gas to sterilize the dust collecting filter and the like.

[0006]

However, in the air purifier having the purifying device, the air purifier having the shutter function, or the air purifier having the purifying device and the shutter function, in addition to the dust collecting function and the deodorizing function, A purifying device, a shutter function, or a purifying device and a shutter function must be provided, resulting in a large increase in cost of the air purifier. Further, in the air cleaner having the shutter function, it is impossible to prevent the release of unpleasant odor at the start of operation.

Further, in the air purifier with sterilization function described in the above publication, when the air cleaning mode is off, the ozone storage chamber and the dust collecting filter are filled with ozone gas, and the ozone gas filled in them is air. By taking measures to prevent leakage to the outside of the purifier, the ozone reaction is completely completed inside the air purifier. Therefore, in the air purifier with sterilization function described in the above publication,
Measures must be taken to prevent ozone gas from leaking to the outside of the air purifier, and the air purifier itself must be completely sealed, which in turn makes the air purifier complex and expensive. There is a problem.

The present invention has been made in view of the above, and an object thereof is to decompose an odor emitted from the inside of an air purifier and suppress an unpleasant odor with a simple structure.
Moreover, it is to provide an air purifier with a low cost.

[0009]

[Means for Solving the Problems] In order to solve the above problems,
In order to achieve the object, the air purifier according to the invention of claim 1 is an air purifier that repeatedly operates in an operating state in which the air cleaning function is executed for a certain period and in a stopped state in which the air cleaning function is stopped for a certain period. An ozone generating unit that is disposed in the housing and that generates ozone gas of a predetermined concentration during the period of the stopped state, and emits odor generated in the casing during the period of the stopped state. It is characterized by masking with ozone generated by the ozone generating means.

According to the first aspect of the present invention, the odor generated inside the air purifier is masked by the ozone generated by the ozone generating means during the stopped state in which the air cleaning function is stopped for a certain period. Therefore, the discomfort caused by the odor emitted from the air cleaner can be reduced.

An air purifier according to a second aspect of the present invention is the air purifier according to the first aspect, wherein the air purifier is arranged in the casing and is provided with a suction port of the casing for introducing an external atmosphere. Further comprising a fan that convects the atmosphere in the housing to an ejection port of the housing for discharging the atmosphere in the housing to the outside, and a fan control unit that controls operation or stop of the fan. The fan control means performs control to operate the fan in the operating state, and control to stop the operating fan in the idle state, and when the fan stops. In addition, the odor remaining inside the housing is decomposed by the ozone generated by the ozone generating means.

According to the second aspect of the present invention, when the fan is stopped during the stop state in which the air cleaning function is stopped for a certain period, the odor remaining inside the casing of the air cleaner is
Since it is decomposed by the ozone generated by the ozone generating means, it is possible to reduce the discomfort caused by the odor emitted from the air cleaner.

An air purifier according to a third aspect of the present invention is the air purifier according to the second aspect, wherein the fan control means controls the fan during the idle state during the idle state. When the fan is operated under the control of the fan control means, the amount of ozone discharged from the inside of the housing to the outside via the ejection port of the housing is adjusted, and The odor remaining in the housing and the ozone from the ozone generating means are agitated to accelerate the decomposition of the odor.

According to the third aspect of the present invention, the fan control means controls the fan to operate only for a predetermined period even when the air cleaning function is stopped for a certain period. Therefore, the amount of ozone released to the outside can be adjusted, and the odor remaining in the housing and the ozone from the ozone generating means can be agitated to accelerate the decomposition of the odor. it can.

An air purifier according to a fourth aspect of the present invention is the air purifier according to any one of the first to third aspects, wherein the ozone generated by the ozone generating means is in the idle state. The concentration of is a concentration value such that the ozone concentration in the vicinity of the air cleaner does not affect the human body in the housing.

According to the invention described in claim 4, ozone is generated from the ozone generating means in such a concentration that the ozone concentration in the vicinity of the air cleaner has a concentration value that does not affect the human body. Therefore, the odor inside the air purifier can be decomposed by ozone without adversely affecting the human body due to ozone.

An air purifier according to a fifth aspect of the present invention is the air purifier according to the fourth aspect, wherein the maximum ozone concentration value in the housing is within a range of 0.3 to 0.4 ppm. The concentration of ozone is 0.01 ppm or less at a position at a distance of about 20 cm from the suction port of the casing.

According to the fifth aspect of the invention, from the ozone generating means, the ozone concentration in the vicinity of the air cleaner has a concentration value of 0.01 ppm or less which does not affect the human body. Ozone having a concentration in the range of, for example, 0.3 to 0.4 ppm is generated, so that the odor inside the air purifier can be decomposed by ozone without adversely affecting the human body due to ozone.

An air purifier according to a sixth aspect of the present invention is the air purifier according to any one of the first to fifth aspects, wherein ozone generation control for controlling the ozone generation time for the ozone generating means is performed. It is characterized by further comprising means.

According to the sixth aspect of the invention, the ozone generation control means controls the ozone generation time with respect to the ozone generation means. Therefore, the ozone generation control means controls the ozone generation time according to the degree of contamination inside the air cleaner. It is possible to control the occurrence time of.

An air purifier according to a seventh aspect of the present invention is the air purifier according to any one of the first to sixth aspects, in which ozone generated from the ozone generating means in the housing is generated. It is characterized by further comprising an ozone sensor for detecting the amount.

According to the seventh aspect of the present invention, since the ozone sensor detects the amount of ozone generated from the ozone generating means in the housing, the ozone has reached an excessive amount. Can be detected.

An air purifier according to an eighth aspect of the present invention is an air purifier that repeatedly operates in an operating state in which the air cleaning function is executed for a certain period and in a stopped state in which the air cleaning function is stopped for a certain period. There is provided a plasma generating unit that is disposed in the housing and that generates plasma during the stopped state, and the odor generated in the housing is generated by the plasma generating unit during the stopped state. It is characterized by being decomposed by plasma.

According to the invention as set forth in claim 8, the odor generated inside the air purifier is decomposed by the plasma generated by the plasma generating means during the stopped state in which the air cleaning function is stopped for a certain period. Therefore, the discomfort caused by the odor emitted from the air cleaner can be reduced.

An air purifier according to a ninth aspect of the present invention is the air purifier according to the eighth aspect, wherein the air purifier is arranged in the casing and is provided with a suction port of the casing for letting in an external atmosphere. Further comprising a fan that convects the atmosphere in the housing to an ejection port of the housing for discharging the atmosphere in the housing to the outside, and a fan control unit that controls operation or stop of the fan. The fan control means performs control to operate the fan in the operating state, and control to stop the operating fan in the idle state, and when the fan stops. In addition, the odor remaining inside the housing is decomposed by the plasma generated by the plasma generating means.

According to the ninth aspect of the present invention, the odor remaining inside the housing of the air purifier when the fan is stopped during the stop state in which the air purifying function is stopped for a certain period of time,
Since it is decomposed by the plasma generated by the plasma generating means, it is possible to reduce the discomfort caused by the odor emitted from the air cleaner.

An air purifier according to a tenth aspect of the present invention is the air purifier according to the ninth aspect, wherein the fan control means controls the fan during the pause state during the pause state. By performing control for operating the fan and operating the fan under the control of the fan control means, the odor remaining in the housing and the plasma from the plasma generation means are agitated to accelerate the decomposition of the odor. Is characterized by.

According to the tenth aspect of the invention, the fan control means controls the fan to operate only for a predetermined period even when the air cleaning function is stopped for a certain period. Therefore, the odor remaining in the housing and the plasma from the plasma generating means can be stirred to accelerate the decomposition of the odor.

An air purifier according to an eleventh aspect of the present invention is the air purifier according to any one of the eighth to tenth aspects, wherein plasma generation control for controlling a plasma generation time for the plasma generating means is performed. It is characterized by further comprising means.

According to the eleventh aspect of the present invention, the plasma generation control means controls the generation time of the plasma with respect to the plasma generation means. Therefore, the plasma is controlled according to the degree of contamination inside the air cleaner. It is possible to control the occurrence time of.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an air cleaner according to the present invention will be described in detail below with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 is a configuration diagram showing a configuration of an air cleaner which is Embodiment 1 of the present invention.
In FIG. 1, the air purifier includes an ozone generator 2, a particle component remover 3, a gas component remover 4, and a fan 5 in a housing 1 from an air inlet side 1A toward an air outlet side 1B. And the motor unit 6 are arranged.

The ozone generator 2 generates ozone gas.
The particle component removing unit 3 is composed of an electric dust collecting plate or the like and has a so-called dust collecting function of removing contaminants such as dust, dust and cigarette smoke in the air. The gas component removing unit 4 is composed of an activated carbon filter or the like and has a so-called deodorizing function of removing odorous components in the air such as cigarette odor. The fan 5 is rotated by the drive of the motor unit 6 to convect the air in the housing 1 and discharge the air to the outside. In the first embodiment, an ozone sensor that detects the amount of ozone generated from the ozone generator 2 may be provided. This ozone sensor may be arranged, for example, in the vicinity of the ozone generator 2.

In such an air cleaner, the operating state in which the air cleaning function is executed for a certain period and the stopped state in which the air cleaning function is stopped for a certain period are repeatedly operated. A control system for operating such an air cleaner is shown in FIG. In FIG. 2, the control unit 10 controls the ozone generating unit 2 and the motor unit 6 depending on the operating state or the stopped state as described later.
Is controlled and, if necessary, the ozone generation amount is controlled for the ozone generation unit 2 based on the detection result detected by the ozone sensor 11 arranged in the vicinity of the ozone generation unit 2. In the first embodiment, the air cleaning function includes the dust collecting function and the deodorizing function.

Next, operation control by the control unit 10 of the air purifier will be described with reference to FIG. First, the control unit 1
When the operation start switch is turned on and the operation is started at time t0, the ozone generator 2 is controlled to be in the off state (maintains the off state) and the motor section 6 is turned on. Control (that is, the fan 5 is turned on). Thereby, the ozone generator 2
Does not generate ozone, and the motor 5 drives the fan 5 to rotate. That is, the air purifying function of the air purifier is executed.

Next, when the operating state period T1 elapses from the time point t0 and reaches the time point t1, the control section 10 controls the ozone generating section 2 from the off state to the on state, while the motor section 6 is turned on.
Is controlled from on to off (that is, the fan 5 is turned off). As a result, ozone is generated from the ozone generator 2, and the motor 5 stops, so that the fan 5 also stops. That is, the air purifying function of the air purifier is not executed, and the above-described sleep state is set. In the first embodiment, the odor in the housing 1 of the air purifier is masked by the ozone generated from the ozone generator 2 during the rest period.

When the rest state period T2 elapses from the time point t1 and reaches the time point t2, the control unit 10 terminates the operation control for the current cycle T and, similarly to the above, operates for the next cycle T. Execute control.

Here, the operating state period T1 is the air cleaning mode period T1 in which the air cleaning function (hereinafter referred to as the air cleaning mode) is executed, and the rest state period T2 is the odor masking in which the odor masking mode is executed. The mode period is T2.

In the first embodiment, the odor masking mode is executed after the air cleaning mode (operating state) is finished is that ozone is generated in a constant cycle and is discharged from the inside of the air cleaner. This is to reduce the discomfort by masking the generated odor with a small amount of ozone.

That is, in FIG. 1, when the tar component of tobacco adheres to the inside of the casing 1 of the air purifier, it becomes the source of odor, and at the time of stop (time t1 in FIG. 3), the air suction port side 1A Unpleasant odor is emitted from the air outlet, etc., and when the operation is started (time t0, time t2 in FIG. 3), the air outlet side 1B
Gives off an unpleasant odor. Therefore, ozone is generated to fill the inside of the air purifier with ozone in the odor masking mode (in a stopped state) in every fixed cycle. The odor remaining inside is decomposed by ozone, and the odor emitted to the outside of the air purifier is provided with a masking effect with ozone having an ozone concentration that does not adversely affect the human body. .

Next, in the odor masking mode,
Since the control shown in the following (1) to (4) by the control unit 10 is included, the control method of the control unit 10 in the odor masking mode will be described next.

(1) During the odor masking mode period T2, the ozone generator 2 is controlled to be on and the motor 6 is controlled to be off as described above. This allows
A small amount of ozone generated from the ozone generator 2 decomposes the odor remaining inside the air purifier and masks the odor released to the outside of the air purifier.

(2) During the odor masking mode period T2, the ozone generator 2 is controlled to be on, and the motor 6 is controlled to be on during all or a part of the period T2. As a result, even in the odor masking mode period T2, due to the rotation of the fan 5, air convection occurs inside the air cleaner, and the ozone generator 2
Ozone generated from the air and the odor inside the air purifier (inside the housing 1) are mixed and stirred inside the air purifier, and the decomposition of the odor is promoted. Also, the odor masking mode period T2
The amount of ozone released from the air inlet side 1A can be adjusted by controlling the on-time of the motor unit 6 which is in the on-state, that is, by controlling the rotation time of the fan 5.

(3) During the odor masking mode period T2, the ozone generator 2 is controlled to be on, and the motor 6 is controlled to be on during all or a part of the period T2. Based on the result of ozone detection by the ozone sensor 11, the amount of ozone generated is controlled by turning off the ozone generator 2 for a certain period of time. Accordingly, during the odor masking mode period T2, in addition to the control of the time during which the motor unit 6 is in the ON state, that is, the control of the rotation time of the fan 5, which is described in the control of (2) above, the ozone generation unit 2 controls The amount of ozone generated is controlled, and the air intake side 1A
The amount of ozone released from the can be controlled.

(4) Although the odor masking mode period T2 is fixed (constant) in the control methods (1) to (3) described above, this odor masking mode period T2 is fixed.
The length of is changed and the same control as the control method of (1)-(3) mentioned above is implemented.

Because the degree of contamination inside the air purifier increases as the frequency of use increases (as the operating time increases), a predetermined amount from the ozone generator 2 is determined according to the degree of contamination. The odor masking mode period T2 is set so that a high concentration of ozone is generated (the period T2 becomes longer depending on the frequency of use), and the trace amount of ozone is reacted with the odor remaining inside the air purifier. This is because. Since the odor masking mode period T2 is changed, when the cycle T is fixed, the air cleaning mode period T1 is also changed according to the period T2.

For example, the frequency of use is set to U according to the frequency.
When the relationship of "U1 <U2 <U3" is satisfied when 1, U2, and U3 are set, the odor masking mode period is set to U1.
, T2A corresponding to U2, T2B corresponding to U2, and T2C corresponding to U3, "T2A <T2B <T2
The odor masking mode period may be set so that the relationship “C” is established. Specifically, when the usage frequency changes from U1 to U2, the odor masking mode period is changed from T2A to T2B.

As described above, the control section 10 controls in the odor masking mode period T2 according to any one of the control methods (1) to (4). Of course, in the operation part of the air cleaner, the above (1) to (4)
It is also possible to provide an operation mode switch corresponding to the above control method and control according to the control method corresponding to the operation mode set by the user. In this case, when the operation mode corresponding to the control method of the above (4) is set, the user is in any one of a plurality of preset odor masking mode periods, or set in advance. It suffices to set an arbitrary period within the odor masking mode period range thus set.

In the first embodiment, specifically, the period T is 30 minutes and the odor masking mode period T
2 is about 2 minutes (Ozone is generated for about 2 minutes when the fan is stopped)
As the ozone concentration inside the air purifier,
The concentration value is set to about ppm. Also,
With respect to ozone harmful to the human body, it is preferable to maintain the ozone concentration at a concentration value of 0.01 ppm or less in the vicinity of the human body, for example, when smoking, which is located a predetermined distance from the actual machine (air purifier).

Specifically, the air suction port side 1 of the air purifier
At a distance of about 20 cm from B, the ozone concentration is 0.0
It is preferable to maintain the concentration value of 1 ppm or less. In order to realize this, the control method of (2) or (3) above is effective. By the way, a small amount of ozone of about 0.01 to 0.03 ppm is always present in the atmosphere. Therefore, as described above, at a distance of about 20 cm from the air suction port side 1B, the ozone concentration is 0.01 ppm or less. Maintaining at does not adversely affect the human body.

By the way, the control unit 10 corresponds to the fan control means and ozone generation control means described in the claims.

Next, regarding the result of evaluation of the ozone masking effect, FIG. 4 shows the case of an air cleaner having severe internal dirt, and FIG. 5 shows the case of an air cleaner having a light degree of internal dirt. Shown in. The ozone masking effect is evaluated by confirming the masking effect by sensory evaluation (display of pleasantness / discomfort) while changing the ozone generation time. Incidentally, the ozone generation time is "2 minutes" and "5 minutes" in FIG. 4, and "0.5 minutes" and "1" in FIG.
Minutes, 1.5 minutes and 2 minutes. In addition,
"Dery dirty" corresponds to dirt inside the air purifier when air cleaning is performed for several months (M months) in the smoking space, and "lightly dirty" means operation. It corresponds to the dirt inside the original air purifier.

By the way, in the case of an air cleaner that is extremely dirty,
As is clear from FIG. 4, when the ozone generation time is 2 minutes, the discomfort is low and masking is effectively performed. On the other hand, in the case of an air purifier that is lightly soiled, it is clear from FIG. 5 that masking is effectively performed with less discomfort when the ozone generation time is 1 minute.

FIG. 6 shows how the ozone concentration changes inside the air cleaner when the ozone generation time is set to 2 minutes. When the ozone generation time is 2 minutes, the maximum ozone concentration inside the air cleaner is 0.3 to 0.4 ppm as shown in FIG.

The degree of dirt inside the air cleaner increases as the operating time (usage time) increases, so the ozone generator 2 to 0.3 can be used depending on the degree of dirt.
It is preferable to set the odor masking mode period T2 so that ozone of a concentration of 0.4 ppm is generated, and to react the minute amount of ozone with the odor remaining inside the air cleaner. To realize this, the control method (4) described above is effective. In this case, the ozone generation time is set to 1 minute in the case of the air purifier at the beginning of operation, and the ozone generation time is set to 2 minutes in the case of the air purifier after M months have passed.

As described above, according to the first embodiment, the following operational effects (1) to (6) can be obtained.

(1) Since ozone is generated in the air purifier in a constant cycle, odor emitted from the air purifier can be masked to reduce discomfort. Further, in addition to the dust collecting function and the deodorizing function as in the conventional case, the cost can be suppressed because a device having a purifying device, a shutter function or the like, or a device provided with ozone leakage prevention measures is not required.

(2) Ozone is generated in a constant cycle to decompose odors into ozone inside the air purifier, so that the cost can be suppressed.

(3) By controlling the agitation inside the air purifier and the flow of air with the outside by the fan 5, it is possible to promote the ozone decomposition of odors and efficiently mask the odors.

(4) The ozone concentration inside the air purifier is set to 0.3 to 0.4 ppm in a constant cycle, and the ozone concentration in the vicinity of a distance of 20 cm from the air inlet side 1A is 0.01 ppm or less. By controlling to, it is possible to suppress adverse effects on the human body and unpleasant ozone odor.

(5) Since the generation time of ozone is controlled, the odor can be decomposed by ozone according to the degree of dirt inside the air cleaner.

(6) By providing an ozone sensor in the air cleaner, an excessive amount of ozone can be detected.

(Second Embodiment) FIG. 7 is a configuration diagram showing a configuration of an air purifier according to a second embodiment of the present invention.
The air purifier shown in FIG. 7 has a configuration in which the ozone generator 2 is deleted and the plasma generator 20 is added to the configuration of the air purifier of the first embodiment shown in FIG.
In the figure, parts that perform the same functions as the components shown in FIG. 1 are given the same reference numerals.

When decomposing the odor inside the air purifier,
In the first embodiment, the odor is decomposed by ozone, whereas in the second embodiment, the odor is decomposed by plasma.

The plasma generating section 20 is provided with a discharge line and a metal net so as to face each other through a predetermined gap, and when a high voltage is applied between the discharge line and the metal net, they are unequal. It is a plasma system that decomposes odors by creating an electric field and generating Coulomb force in charged particles to create a very active space. That is, plasma is generated between the discharge wire and the metal net (between the gaps) in the plasma generator 20.

In FIG. 3, T is a cycle, T1 is an operating state period in which the air cleaning function is executed, and T2 is a resting state period in which odor decomposition by plasma is executed.

Now, the control section 10 can perform control according to the control methods (1) to (4) described in the first embodiment during the idle state period T2. In this case, the control unit 1
In the case of 0, instead of the ozone generation unit 2, the plasma generation unit 20 is controlled.

Incidentally, the control unit 10 in the second embodiment.
Corresponds to the fan control means and the plasma generation control means described in the claims.

As described above, according to the second embodiment, the following operational effects (1) to (5) can be obtained.

(1) Since the plasma is generated in the air purifier in a constant cycle, the odor emitted from the air purifier can be decomposed by the plasma, and the air (atmosphere) emitted from the air purifier can be Discomfort can be reduced. Further, in addition to the dust collecting function and the deodorizing function as in the conventional case, the cost can be suppressed because a device having a purifying device, a shutter function or the like, or a device provided with ozone leakage prevention measures is not required.

(2) Since the plasma is generated in a constant cycle and the odor is decomposed by the plasma inside the air cleaner, the cost can be suppressed.

(3) By controlling the agitation inside the air cleaner and the flow of air with the outside by the fan 5, the decomposition of odors by plasma can be promoted.

(4) Since the generation time of plasma can be controlled, the odor can be decomposed by plasma according to the degree of dirt inside the air cleaner.

(5) By using plasma instead of ozone, it is cheaper than a mechanism for generating ozone.
A mechanism for generating plasma can be adopted, and the cost can be suppressed and the odor inside the air cleaner can be decomposed.

[0075]

As described above, according to the first aspect of the present invention, the ozone generating means removes the odor generated inside the air purifier during the suspended state in which the air purifying function is stopped for a certain period. Since the ozone generated is masked by the ozone, the odor emitted from the inside of the air cleaner can be masked by the ozone to reduce the discomfort caused by the odor emitted from the air cleaner.
Further, since it is not necessary to provide a shutter function or a purifying device as in the conventional air purifier or to take measures for preventing ozone leakage, the cost of the air purifying device can be reduced.

According to the second aspect of the present invention, when the fan is stopped during the stop state in which the air cleaning function is stopped for a certain period of time, the odor remaining inside the casing of the air cleaner is generated by the ozone generating means. Since the ozone is decomposed by the generated ozone, it is possible to reduce the discomfort caused by the odor emitted from the air purifier, and also to reduce the cost of the air purifier similarly to the above.

According to the third aspect of the invention, the fan control means controls the fan to operate only for a predetermined period even when the air cleaning function is stopped for a certain period. Therefore, the amount of ozone released to the outside can be adjusted, and the odor remaining in the housing and the ozone from the ozone generating means are agitated to accelerate the decomposition of the odor (ozone decomposition). It is possible to effectively mask the odor with ozone.

According to the invention described in claim 4, ozone is generated from the ozone generating means in a concentration such that the ozone concentration in the vicinity of the air cleaner has a concentration value that does not affect the human body. Therefore, the odor inside the air purifier can be decomposed by ozone without adversely affecting the human body due to ozone, and unpleasant ozone odor can be suppressed.

According to the fifth aspect of the invention, from the ozone generating means, the ozone concentration in the vicinity of the air purifier has a concentration value of 0.01 ppm or less, which does not adversely affect the human body, for example, 0. Since ozone with a concentration within the range of 3 to 0.4 ppm is generated, the odor inside the air cleaner can be decomposed by ozone without affecting the human body due to ozone, and an unpleasant ozone odor can be obtained. Can also be suppressed.

According to the sixth aspect of the present invention, the ozone generation control means controls the ozone generation time with respect to the ozone generation means. Therefore, the ozone generation control means controls the ozone generation time according to the degree of contamination in the air cleaner. Occurrence time can be controlled.

According to the invention described in claim 7, since the ozone sensor detects the amount of ozone generated from the ozone generating means in the housing, it is possible to detect that the ozone has reached an excessive amount. Can be detected.

According to the eighth aspect of the present invention, the odor generated inside the air purifier is decomposed by the plasma generated by the plasma generating means during the stopped state in which the air cleaning function is stopped for a certain period. I am doing so
It is possible to reduce discomfort caused by the odor emitted from the air purifier. Further, since it is not necessary to provide a shutter function or a purifying device as in the conventional air cleaner or to take measures for preventing ozone leakage, the cost of the air cleaner can be reduced.

According to the ninth aspect of the present invention, when the fan is stopped due to the stop state in which the air cleaning function is stopped for a certain period of time, the odor remaining inside the housing of the air cleaner is removed by the plasma generating means. Since the plasma is decomposed by the generated plasma, the discomfort caused by the odor emitted from the air cleaner can be reduced, and the cost of the air cleaner can be reduced similarly to the above.

According to the tenth aspect of the invention, the fan control means controls the fan to operate only for a predetermined period even when the air cleaning function is stopped for a certain period. Therefore, it is possible to stir the odor remaining in the housing and the plasma from the plasma generating means to accelerate the decomposition of the odor.

According to the eleventh aspect of the present invention, the plasma generation control means controls the generation time of the plasma with respect to the plasma generation means. Therefore, according to the degree of contamination of the plasma inside the air purifier, Occurrence time can be controlled.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of an air cleaner that is Embodiment 1 of the present invention.

FIG. 2 is a configuration diagram showing a configuration of a control system for operating the air cleaner shown in FIG.

FIG. 3 is a time chart showing an operation control process by the air cleaner shown in FIG.

FIG. 4 is a diagram showing an example of a result of an ozone masking effect on an air cleaner.

FIG. 5 is a diagram showing an example of a result of an ozone masking effect on an air cleaner.

FIG. 6 is a diagram showing how the ozone concentration inside the air purifier changes.

FIG. 7 is a configuration diagram showing a configuration of an air cleaner that is Embodiment 2 of the present invention.

[Explanation of symbols]

1 case 1A Air inlet side 1B Air outlet side 2 Ozone generator 3 Particle component removal unit 4 Gas component removal section 5 fans 6 Motor part 10 Control unit 11 Ozone sensor 20 Plasma generator

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) // A61L 2/14 A61L 2/14 2/20 2/20 JF term (reference) 4C058 AA19 BB06 BB07 CC08 DD01 JJ14 KK06 4C080 AA04 AA09 BB02 CC01 HH02 KK02 MM08 QQ17 4G075 AA03 AA37 AA61 AA65 BA01 BA05 BB04 BB05 CA15 CA54 EB41 ED02 EE07 FA03 FB02 FC02

Claims (11)

[Claims] 1. An air purifier that is repeatedly operated in an operating state in which the air cleaning function is executed for a certain period and in a stopped state in which the air cleaning function is stopped for a certain period. An ozone generating means for generating an ozone gas of a predetermined concentration during a period is provided, and during the period of the stopped state, the odor generated in the housing is masked by the ozone generated by the ozone generating means. Air purifier to do. 2. From the suction port of the case, which is arranged in the case and allows the outside atmosphere to flow in, to the jet port of the case, which discharges the atmosphere inside the case to the outside,
It further comprises a fan that convects the atmosphere in the housing, and a fan control unit that controls the operation or stop of the fan, wherein the fan control unit controls the operation of the fan in the operating state. In addition to performing the control to stop the fan in operation in the idle state, when the fan is stopped, the odor remaining inside the housing, the ozone generated by the ozone generating means. The air purifier according to claim 1, wherein the air purifier is decomposed. 3. The fan control means performs control to operate the fan during the idle state during the idle state, and the fan is operated by the control of the fan control means, While adjusting the amount of ozone released from the inside of the housing to the outside through the jet port of the housing, the odor remaining in the housing and the ozone from the ozone generating means are agitated to remove the odor. The air purifier according to claim 2, which promotes decomposition. 4. The ozone concentration generated by the ozone generating means in the rest state is such that the ozone concentration in the vicinity of the air cleaner of the self does not affect the human body in the housing. The air purifier according to any one of claims 1 to 3, wherein the air purifier has a concentration value that is a concentration value. 5. The maximum concentration value of ozone concentration in the casing is set to a value in the range of 0.3 to 0.4 ppm, and the ozone concentration at a position of about 20 cm from the suction port of the casing is 0. The air purifier according to claim 4, which has a concentration value of 01 ppm or less. 6. The air purifier according to claim 1, further comprising ozone generation control means for controlling the generation time of ozone with respect to the ozone generation means. 7. The air purifier according to claim 1, further comprising an ozone sensor for detecting an amount of ozone generated from the ozone generating means in the housing. Machine. 8. An air purifier that is repeatedly operated in an operating state in which the air cleaning function is executed for a certain period and in a stopped state in which the air cleaning function is stopped for a certain period, and is arranged in a housing and is in the stopped state. And a plasma generating means for generating plasma during the period, the odor generated in the housing during the stopped state is decomposed by the plasma generated by the plasma generating means. Machine. 9. From the suction port of the case, which is arranged in the case and allows the outside atmosphere to flow in, to the ejection port of the case, which discharges the atmosphere inside the case to the outside,
It further comprises a fan that convects the atmosphere in the housing, and a fan control unit that controls the operation or stop of the fan, wherein the fan control unit controls the operation of the fan in the operating state. In addition to performing the control to stop the fan in operation in the dormant state, when the fan is stopped, the odor remaining inside the housing, the plasma generated by the plasma generating means. The air purifier according to claim 8, wherein the air purifier is decomposed by. 10. The fan control means performs control to operate the fan during the idle state during the idle state, and the fan is operated under the control of the fan control means, whereby the casing is operated. The air purifier according to claim 9, wherein the odor remaining in the body is agitated with the plasma from the plasma generating means to accelerate the decomposition of the odor. 11. The air purifier according to claim 8, further comprising plasma generation control means for controlling a generation time of plasma with respect to the plasma generation means.