JP4840181B2 - Air cleaner - Google Patents

Description

  The present invention relates to an air cleaner that detects dirt in indoor air and controls airflow using a louver according to the detection result.

  Conventionally, this type of air purifier is known to detect dirt in indoor air, and to automatically control the blowout louver provided at the outlet according to the detection result to clean the air according to the degree of dirt. .

  Hereinafter, the air cleaner will be described with reference to FIGS. 4 and 5. FIG.

  As shown in FIG. 4, by detecting the dust and odor with the sensor while swinging the movable louver 102 provided at the outlet 101 automatically back and forth or right and left to change the air flow in the room, It is configured to quickly search for dirt, stop the movable louver 102 at a position where air dirt of a certain amount or more is detected, create an optimal air flow in the room, and perform a clean operation (see, for example, Patent Document 1).

Further, as shown in FIG. 5, the contamination of the intake air is detected by the dirt sensor 103, and the contamination source of the indoor air is estimated from the detection result, and the blowout into the room is performed by the louver 105 of the outlet 104 according to the estimation result. While changing a wind direction, rotation control of the fan 106 is performed and it is comprised so that a blowing air volume may be adjusted (for example, refer patent document 2).
JP 2006-57919 A JP 2000-130827 A

  In such a conventional air purifier, as shown in Patent Document 1, when the dirt is detected by the sensor, the angle of the swinging movable louver is fixed, but when the dirt of the sucked airflow is detected. When the airflow is blown out of the main body, there is a time lag until the airflow moves through the room and is sucked into the main body, so even if the angle of the blowout louver is fixed when the dirt is detected, the louver is not necessarily There is a problem that it does not always face the direction of the contamination source, and it is required to control the airflow effectively regardless of the position of the contamination source.

  Moreover, in the thing shown by patent document 2, although the position of a stain | pollution | contamination generation source is estimated based on the stain | pollution | contamination peak value and the fall of contamination | pollution intensity | strength, and the wind direction and the air volume are changed, the particle diameter of dust is large. Is not taken into consideration, so it does not sufficiently absorb dirt from large particles and settles on the floor, while it can diffuse reversely to dust and odors from small particles. There is a problem that it is possible to cope with the size of large and small particle sizes dispersed in the room, and it is required to clean the room reliably even when odors are mixed.

  The present invention solves such a conventional problem, and provides an air purifier that generates an airflow suitable for the particle size of the dust and odor, and can efficiently remove dust and odor by the circulating airflow. The purpose is that.

  In order to achieve the above object, the air cleaner of the present invention has a suction port for sucking indoor air, a cleaning means for cleaning the air sucked from the suction port, and a blowing means for ventilating the cleaning means. , A blowout port for blowing out clean air provided on the top surface of the main body into the room, a blowout louver provided in the blowout port, the angle of which can be adjusted in the elevation angle direction, and dust for detecting the particle size of dust in the air A sensor and a control unit that adjusts the angle of the blowing louver in the elevation angle direction according to the size of the particle size of the dust output from the dust sensor.

  Thus, by forming an air flow suitable for the particle size of the dust by controlling the blowing direction by the blowing louver, an air cleaner that can efficiently reach the dust and can be sucked and removed by the circulating air flow can be obtained.

  Another means is that when the control unit determines that the dust sensor has detected a large particle size dust, the elevation direction of the blowing louver is held obliquely upward and forward.

  When it is determined that dust having a large particle size is detected by this means, the air flow is efficiently generated in the dust having a large particle size floating in the low-frequency space by forming an air flow that circulates the low-frequency space air by the blowout louver. An air cleaner that can be reached and sucked into the main body by a circulating airflow and removed can be obtained.

  Another means is that when the control unit determines that the dust sensor has detected a small particle size dust, the elevation direction of the blowing louver is held upward.

  When it is determined that dust with a small particle size is detected by this means, an air flow is efficiently generated to dust with a small particle size floating in the high frequency space by forming an air flow that circulates the high frequency space air with the blowout louver. An air cleaner that can be reached and sucked into the main body by a circulating airflow and removed can be obtained.

  In another aspect, the control unit controls the blowout louver to reciprocate in the elevation direction when determining that the dust sensor has detected a large particle size and a small particle size. .

  When it is determined that dust having a large particle size and a small particle size has been detected by this means, the air flow circulating in the high frequency space and the air flow circulating in the low frequency space are alternately formed by the blowout louver, thereby creating a high frequency space. An air cleaner can be obtained in which the airflow efficiently reaches the dust with the small particle size floating and the dust with the large particle size floating in the low-frequency space, and can be sucked and removed by the circulating airflow.

  According to another aspect, the suction port for sucking room air includes a first suction port provided at the lower front of the main body and a second suction port provided above the first suction port. A suction lid portion that can be opened and closed is provided at the suction port, and the control portion controls opening and closing of the first suction port by the suction lid portion according to the determined particle size of the dust.

  By this means, an air flow suitable for the particle size of the dust is formed by controlling the blowing direction by the blowing louver and the suction direction by the suction lid, so that the air flow efficiently reaches the dust and is sucked into the main body by the circulating air flow and removed An air cleaner that can be obtained is obtained.

  Another means is that if the dust sensor detects that the dust sensor has detected a large particle size dust and if the dust sensor has detected a large particle size and a small particle size dust, The suction port 1 is opened.

  When it is determined that dust with a large particle size has been detected by this means, and when it is determined that dust with both a large particle size and a small particle size has been detected, the airflow circulating in the high-frequency space by the blowout louver and the suction lid And airflow that circulates in the low-frequency space alternately, the airflow efficiently reaches the dust with small particle size floating in the high-frequency space and the dust with large particle size floating in the low-frequency space. An air cleaner that can be sucked into the main body and removed can be obtained.

  Another means is that when the control unit determines that the dust sensor has detected a small particle size dust, the first suction port is closed by the suction lid.

  When it is determined that dust with a small particle size is detected by this means, an air flow is circulated to the dust with a small particle size floating in the high frequency space by forming an air flow that circulates the low frequency space air by the blowout louver and the suction lid. Efficiently, and an air cleaner that can be sucked into and removed from the main body by a circulating airflow is obtained.

  Further, the other means has a gas sensor for detecting the gas concentration in the air, and the control unit adjusts the blowout louver provided at the blowout port in the elevation angle direction according to the detection value of the gas sensor. Is.

  By controlling the air flow suitable for the particle size and odor of dust by this means with the blowout louver, an air cleaner that can efficiently reach the dust and odor and can be sucked into the main body by the circulating air flow and removed can be obtained.

  Further, the other means has a gas sensor for detecting the gas concentration in the air, and the control unit is arranged at the outlet according to the detection value of the gas sensor and the particle size of the dust output from the dust sensor. While adjusting the angle of the provided blow louver in the elevation angle direction, the opening and closing of the suction lid provided in the first suction port is controlled.

  By controlling the air flow suitable for the particle size and odor of dust by this means with the blowout louver and the suction lid, the air cleaner efficiently reaches the dust and odor, and can be sucked into the main body by the circulating air flow and removed Is obtained.

  Another means is that the control unit determines that the dust sensor has detected a large particle size dust and if the gas concentration detected by the gas sensor is greater than or equal to the reference value of the pollutant gas, The blowout louver provided is reciprocally rotated, and the first suction port is opened by the suction lid.

  When it is determined that the dust sensor has detected a large particle size dust by this means, and the gas concentration detected by the gas sensor is greater than or equal to the reference value of the pollutant gas, the high frequency space is defined by the blowout louver and the suction lid. By alternately forming the airflow circulating in the low-frequency space and the airflow circulating in the low-frequency space, the airflow is efficient for odor floating in the high-frequency space, small particle size dust and large particle size dust floating in the low-frequency space. Thus, an air cleaner that can be sucked into and removed from the main body by a circulating airflow is obtained.

  Another means is that when the control unit determines that the dust sensor is not detecting dust and the gas concentration detected by the gas sensor is equal to or higher than the reference value of the pollutant gas, the control unit is configured to provide a blowout louver provided at the blowout port. The first suction port is closed by the suction lid part while being set in the upward direction.

  When it is determined that the dust sensor has not detected dust by this means and the gas concentration detected by the gas sensor is greater than or equal to the pollutant gas reference value, the airflow circulating in the high-frequency space is blown out by the blowout louver and the suction lid. By forming, an air purifier capable of efficiently sucking and removing odor floating in the high-frequency space is obtained.

  Another means is that when the control unit determines that the dust sensor is not detecting dust, and the gas concentration detected by the gas sensor is less than the reference value of the pollutant gas, the control unit is provided with an outlet louver provided at the outlet. While rotating reciprocally, the first suction port is opened by the suction lid.

  When it is determined that the dust sensor is not detecting dust by this means and the gas concentration detected by the gas sensor is less than the reference value of the pollutant gas, the air flow circulating in the high-frequency space by the blowout louver and the suction lid is An air cleaner that can efficiently detect odors floating in the high frequency space, small particle size dust and large particle size dust floating in the low frequency space by alternately forming the airflow circulating in the low frequency space can get.

  According to the present invention, by forming an air flow suitable for the particle size of the dust by controlling the blowing direction by the blowing louver, there is an effect that the air flow efficiently reaches the dust and can be sucked and removed by the circulating air flow to the main body. An air purifier can be provided.

  In addition, when it is determined that dust with a large particle size has been detected, the air flow efficiently reaches the dust with a large particle size floating in the low space by forming an air flow that circulates the low space air by the blowout louver. In addition, it is possible to provide an air purifier that has an effect of being sucked into and removed from the main body by a circulating airflow.

  In addition, when determining that dust with a small particle size has been detected, the air flow efficiently reaches dust with a small particle size floating in the high frequency space by forming an air flow that circulates the high frequency space air with the blowout louver. In addition, it is possible to provide an air purifier that has an effect of being sucked into and removed from the main body by a circulating airflow.

  In addition, when it is determined that dust having a large particle size and a small particle size has been detected, the airflow circulating through the high frequency space and the air flow circulating through the low frequency space are alternately formed by the blowout louver so that it floats in the high frequency space. Thus, an air cleaner can be provided which has an effect that airflow efficiently reaches dust having a small particle size and dust having a large particle size floating in a low-frequency space, and can be sucked and removed by the circulating airflow.

  In addition, by forming an airflow suitable for the particle size of the dust by controlling the blowing direction by the blowing louver and the suction direction by the suction lid, the airflow efficiently reaches the dust and can be sucked into the main body by the circulating airflow and removed An effective air purifier can be provided.

  Further, when it is determined that dust having a large particle size has been detected, and when it is determined that dust having both a large particle size and a small particle size has been detected, an air flow circulating in the high frequency space by the blowout louver and the suction lid portion By alternately forming the airflow that circulates in the low frequency space, the airflow efficiently reaches the small particle size dust floating in the high frequency space and the large particle size dust floating in the low frequency space. Can be sucked into the body and removed.

  When it is determined that dust with a small particle size is detected, an air flow is generated in the dust with a small particle size floating in the high frequency space by forming an air flow that circulates the low frequency space air with the blowout louver and the suction lid. It reaches efficiently and can be sucked and removed by the circulating airflow.

  In addition, by controlling the airflow suitable for the particle size and odor of the dust with the blowout louver, the airflow efficiently reaches the dust and odor, and provides an air purifier that has the effect of being sucked and removed by the circulating airflow it can.

  In addition, by controlling the air flow suitable for the particle size and odor of the dust with the blowout louver and the suction lid, the air effectively reaches the dust and the odor and can be sucked into and removed from the main body by the circulating air flow. A purifier can be provided.

  When the dust sensor determines that dust with a large particle size has been detected and the gas concentration detected by the gas sensor is greater than or equal to the reference value of the pollutant gas, the high frequency space is defined by the blowout louver and the suction lid. By alternately forming the circulating airflow and the airflow circulating in the low-frequency space, the airflow is efficiently applied to the odor floating in the high-frequency space, the small particle size dust and the large particle size dust floating in the low-frequency space. It is possible to provide an air purifier that can be reached and sucked into the main body by a circulating airflow and removed.

  Also, when the dust sensor determines that dust is not detected and the gas concentration detected by the gas sensor is greater than or equal to the pollutant gas reference value, an air flow that circulates in the high-frequency space is formed by the blowout louver and the suction lid. By doing so, it is possible to provide an air purifier that is capable of efficiently sucking and removing odors floating in the high-frequency space.

  In addition, when the dust sensor determines that dust is not detected and the gas concentration detected by the gas sensor is less than the pollutant gas reference value, the air flow circulating in the high-frequency space and the low flow are reduced by the blowout louver and the suction lid. Air purification with the effect of efficiently detecting odors floating in the high-frequency space, small particle size dust and large particle size dust floating in the low-frequency space by alternately forming the airflow circulating in the high-frequency space Can provide a machine.

  The invention according to claim 1 of the present invention includes a suction port for sucking indoor air, a cleaning means for cleaning the air sucked from the suction port, a blowing means for ventilating the cleaning means, and a top surface of the main body. A blowout port for blowing out the clean air provided in the room, a blowout louver provided in the blowout port, the angle of which can be adjusted in the elevation direction, a dust sensor for detecting the particle size of dust in the air, and this According to the size of the particle size of the dust output from the dust sensor, it has a control unit that adjusts the blowing louver in the elevation direction, and the air flow suitable for the particle size of the dust is changed in the blowing direction by the blowing louver. By forming by control, the airflow efficiently reaches the dust, and has an effect that it can be sucked and removed by the circulating airflow.

  In addition, when the control unit determines that the dust sensor has detected a large particle size dust, the control unit is configured to hold the blowing louver in an upward and downward direction and detect the large particle size dust. When the airflow is circulated through the low-pass space air by the blowout louver, the airflow efficiently reaches the large particle size dust floating in the low-passage space, and is sucked into the main body by the circulating airflow. It has the effect that it can be removed.

  In addition, when the control unit determines that the dust sensor has detected a small particle size dust, the control unit is configured to hold the blowing louver in an upright direction, and detect the small particle size dust. If it is determined that the airflow circulates in the high-frequency space by the blowout louver, the airflow efficiently reaches the small particle size dust floating in the high-frequency space, and is sucked into the main body by the circulating airflow. It has the effect that it can be removed.

  In addition, when the control unit determines that the dust sensor has detected dust having a large particle size and a small particle size, the control unit controls the blowout louver to reciprocate in the elevation angle direction. And small particle size dust is detected, the airflow circulating through the high frequency space and the air flow circulating through the low frequency space are alternately formed by the blowout louver, so that the particle size floating in the high frequency space is small. The airflow efficiently reaches the dust and the dust having a large particle diameter floating in the low-frequency space, and has an effect that it can be sucked and removed by the circulating airflow.

  Further, the suction port for sucking room air includes a first suction port provided at the lower front of the main body and a second suction port provided above the first suction port. A suction lid portion that can be opened and closed is provided, and the control portion controls opening and closing of the first suction port by the suction lid portion according to the determined particle size of the dust, and blows out an airflow suitable for the particle size of the dust The air flow efficiently reaches the dust and can be sucked into and removed from the main body by the circulating air flow.

  In addition, when the control unit determines that the dust sensor has detected a large particle size dust and when the control unit determines that a large particle size and a small particle size dust have been detected, the control unit uses the suction cover unit to detect the first suction port. If it is determined that dust having a large particle size has been detected, and if it is determined that dust having both a large particle size and a small particle size has been detected, the blowout louver and the suction lid By alternately forming an airflow that circulates in the high-frequency space and an airflow that circulates in the low-frequency space, the airflow is efficient for dust with small particle size floating in the high-frequency space and dust with large particle size floating in the low-frequency space And has the action of being sucked into the main body by a circulating airflow and removed.

  In addition, when the control unit determines that the dust sensor has detected a small particle size dust, the control unit is configured to close the first suction port by the suction cover unit, and to detect the small particle size dust. When judging, by forming an air flow that circulates the low-pass space air by the blowout louver and the suction lid, the air flow efficiently reaches the small particle size dust floating in the high-pass space, and the circulating air flow reaches the main body It has the effect that it can be removed by suction.

  In addition, it has a gas sensor for detecting the gas concentration in the air, and the control unit is configured to adjust the angle of the blowout louver provided in the blowout port in the elevation direction according to the detection value of the gas sensor, By controlling the airflow suitable for the particle size and odor of the dust with the blowout louver, the airflow can efficiently reach the dust and odor, and can be sucked into the main body by the circulating airflow and removed.

  In addition, it has a gas sensor for detecting the gas concentration in the air, and the control unit is a blowout louver provided at the blowout port according to the detection value of the gas sensor and the particle size of the dust output from the dust sensor Is adjusted in the elevation direction, and the suction lid provided in the first suction port is controlled to open and close, and the air flow suitable for the particle size and odor of the dust is controlled by the blowout louver and the suction lid. By doing so, the airflow efficiently reaches the dust and odor, and has the action of being sucked into the main body by the circulating airflow and removed.

  In addition, when the control unit determines that the dust sensor has detected dust having a large particle size, and the gas concentration detected by the gas sensor is equal to or higher than the contamination gas reference value, the blowout louver provided at the blowout port The first suction port is opened by the suction lid, and the dust sensor detects that dust with a large particle size has been detected, and is detected by the gas sensor. If the gas concentration is higher than the pollutant gas reference value, the air flow that circulates in the high-frequency space and the air current that circulates in the low-frequency space are alternately formed by the blowout louver and the suction lid, so that the odor floating in the high-frequency space The airflow efficiently reaches the dust having a small particle size and the dust having a large particle size floating in the low-frequency space, and can be sucked and removed by the circulating airflow.

  In addition, when the control unit determines that the dust sensor does not detect dust and the gas concentration detected by the gas sensor is equal to or higher than the reference value of the pollutant gas, the control unit moves the blowing louver provided in the blowing port directly upward. The first suction port is closed by the suction lid, and it is determined that the dust sensor is not detecting dust, and the gas concentration detected by the gas sensor is the pollutant gas reference value. When it is above, it has the effect | action that the odor which floats in a high region space can be efficiently attracted | sucked and removed by forming the airflow which circulates through a high region space by a blowing louver and a suction cover part.

  In addition, when the control unit determines that the dust sensor does not detect dust and the gas concentration detected by the gas sensor is less than the contamination gas reference value, the control unit reciprocally rotates the blowout louver provided at the blowout port. In addition, the first suction port is opened by the suction lid, and it is determined that the dust sensor is not detecting dust, and the gas concentration detected by the gas sensor is less than the reference value of the pollutant gas. In some cases, the blowout louver and suction lid part alternately form the airflow circulating in the high-frequency space and the airflow circulating in the low-frequency space, so that the odor floating in the high-frequency space, small particle size dust and the low-frequency space It has an effect that dust having a large particle diameter floating on the surface can be detected efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows a configuration diagram of an air cleaner according to the first embodiment.

  As shown in FIG. 1, the main body 1 of the air cleaner is formed in a substantially box shape, and is provided with a suction port 2 for sucking room air on the front surface or side surface of the main body 1 and a blowout louver 6 on the top surface of the main body 1. A blowout port 5 is provided, and a blowout louver drive unit 11 that adjusts the blowout louver 6 in the elevation direction is provided.

  The main body 1 is provided with a filter 3 as air cleaning means and a fan motor 4 as air blowing means for passing air through the filter 3, and air sucked from the suction port 2 by driving the fan motor 4 passes through the filter 3. Then, it is cleaned and blown out from the outlet 5.

  Further, the main body 1 is provided with a dust sensor 7 for detecting the particle size and concentration of dust in the air, and the control unit 8 controls driving of the blowing louver drive unit 11 in accordance with the detection value of the dust sensor 7. The angle of the blowout louver 6 is adjusted in the elevation direction.

  The dust sensor 7 transmits different output values to the control unit 8 when the particle size of the detected dust exceeds 1.0 μm and 2.5 μm. For example, when the particle size of the detected dust is 2.5 μm or more, two types of output values are output: an output value exceeding 1.0 μm and an output value exceeding 2.5 μm. At this time, when the output frequency within a certain sampling time is equal to or higher than the reference, the control unit 8 determines that dust having a large particle size and a small particle size has been detected.

  On the other hand, when the appearance frequency of the output values of 1.0 μm to 2.5 μm is less than the reference, the control unit 8 determines that dust having a large particle diameter has been detected.

  When the particle size of the detected dust is 1.0 μm or more and less than 2.5 μm, only the output value when it exceeds 1.0 μm is output. At this time, when the output frequency within a certain sampling time is equal to or higher than the reference, the control unit 8 determines that dust having a small particle diameter has been detected.

  When the particle size of the detected dust is less than 1.0 μm, no output value is output to avoid noise. At this time, the control unit 8 determines that dust is not detected.

  Note that the reference values for the sampling time and the output frequency are different values for the large particle size and the small particle size.

  As shown in FIG. 3, in the indoor space, ticks and dead ticks with large particle diameters, pollen, dust, etc. are easily settled and distributed in the low-frequency space in the room. It is known that odors and odors are likely to float and are often distributed in indoor high-frequency spaces.

  In the above configuration, when the control unit 8 determines that the dust sensor 7 has detected a large particle size dust while operating the main body 1 of the air purifier, the blowing louver drive unit 11 is driven to raise and lower the blowing louver 6. The direction is rotated diagonally forward and upward, and the elevation angle is held at about 65 degrees. Thereby, since the air blown out from the blow-off port 5 forms an airflow circulating in the relatively low-frequency space in the room, there are many mite feces and deaths that are distributed and float in the indoor low-frequency space, While entraining dust such as pollen and dust, the airflow reaches the front or side of the main body 1, and the circulating airflow thus formed is sucked into the suction port 2 of the main body 1, and the polluted air whose particle size is increased by the filter 3. Can be cleaned.

  Further, when the control unit 8 determines that the dust sensor 7 has detected a small particle size dust, the blowing louver drive unit 11 rotates the elevation direction of the blowing louver 6 to a position directly above and holds it. As a result, the air blown from the outlet 5 forms an air flow that circulates in the indoor high-frequency space air, so that the tobacco smoke and virus that are distributed in large amounts in the indoor high-frequency space and float. The airflow reaches the front or side surface of the main body 1 while entraining dust and the like, and the circulating airflow formed in this way is sucked into the suction port 2 of the main body 1 to clean the polluted air with a small particle size by the filter 3. can do.

  Further, when the control unit 8 determines that the dust sensor 7 has detected two types of dust having a large particle size and a small particle size, the blowing louver drive unit 11 causes the elevation direction of the blowing louver 6 to be an upward direction and an elevation angle. Reciprocates between about 65 degrees. As a result, the air blown out from the air outlet 5 alternately forms an airflow circulating in the indoor high-frequency space and an airflow circulating in the low-frequency space, so that the particle size distributed and floated in the indoor high-frequency space is small. It was formed in this way while entraining both large and small particle size dust particles when passing through two spaces where dust particles and other dust particles with a large particle size distributed and floating in the indoor low-frequency space are mixed. The circulating airflow is sucked into the suction port 2 of the main body 1, and the contaminated air can be cleaned with the filter 3.

(Embodiment 2)
In the following description of the present embodiment, the same components as those described in the previous embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 1, the suction port 2 of the main body 1 of the air cleaner includes a first suction port 2a provided at the lower front portion of the main body 1 and a second position provided above the first suction port 2a. The first suction port 2a includes a suction lid portion 9 that can be opened and closed, and a suction lid portion drive portion 12 that opens and closes the suction lid portion 9. In the present embodiment, the second suction port 2 b is formed on the side surface of the main body 1.

  Also, a dust sensor 7 for detecting the particle size of dust in the air is provided in the main body 1, and the control unit 8 corresponds to the detection value of the dust sensor 7 by driving the suction lid unit drive unit 12. The first suction port 2a is controlled to be openable and closable by moving the portion 9.

  In the above configuration, when the control unit 8 determines that the dust sensor 7 has detected a large particle size dust while the main body 1 is in operation, the elevation angle of the blowing louver 6 is set obliquely forward and obliquely upward by the blowing louver drive unit 11. Rotate and hold up to about 65 degrees. At the same time, the suction lid portion 9 is driven by the suction lid portion drive section 12 to open the first suction port 2a. Thereby, clean air is blown out from the blower outlet 5 to the indoor low-frequency space, and dust having a large particle size is guided to the suction port 2 of the main body 1, and the first suction port 2 a close to the floor surface is opened. Therefore, dust with a large particle diameter can be mainly sucked from the first suction port 2a and can be cleaned by the filter 3 by increasing the amount of suction air from the first suction port 2a.

  If the control unit 8 determines that the dust sensor 7 has detected a small particle size dust, the blowing louver 6 is rotated by the blowing louver drive unit 11 to the up / down direction and held upward. At the same time, the suction lid 9 is moved by the suction lid drive unit 12 to close the first suction port 2a. As a result, the air blown upward from the air outlet 5 passes through the indoor high-frequency space, guides the small particle size dust to the air inlet 2 of the main body 1, and the first air inlet 2a is closed. Therefore, by increasing the amount of suction air from the second suction port 2b, dust having a small particle diameter can be mainly sucked from the first suction port 2a and cleaned by the filter 3. Can do.

  Further, when the control unit 8 determines that the dust sensor 7 has detected two types of dust having a large particle size and a small particle size, the blowing louver drive unit 11 changes the elevation direction of the blowing louver 6 from an upward direction and an elevation angle. Is controlled to reciprocate between about 65 degrees. At the same time, the suction lid drive unit 12 is driven, and the suction lid 9 opens the first suction port 2a. Thereby, clean air is blown from the blower outlet 5 into the indoor low-frequency space and high-frequency space, and both large and small particle sizes are carried to the circulating airflow, and the two first suction ports 2 a of the main body 1. The second suction port 2b is efficiently sucked and can be cleaned by the filter 3.

(Embodiment 3)
As shown in FIG. 1, a dust sensor 7 for detecting the particle size and concentration of dust in the air and a gas sensor 10 for detecting a gas concentration such as tobacco odor in the air are provided in the main body 1.

  When the gas concentration that is an odor component in the air detected by the gas sensor 10 is equal to or higher than the reference value, the control unit blows out the blowout louver 6 in accordance with both detection values combined with the detection value of the dust sensor 7. The direction is controlled.

  As shown in FIG. 3, it is known that tobacco odors and odors drifting indoors in an indoor space are more likely to float than dust such as pollen, and are distributed in a large amount of indoor high space.

  In the above configuration, the control unit 8 determines that the dust sensor 7 has detected a large particle size dust, and if the gas concentration detected by the gas sensor is greater than or equal to the pollutant gas reference value, the blowing louver drive unit 11. Thus, the blowout louver 6 is controlled so as to reciprocate between a direction in which the elevation is directly above and an elevation angle of about 65 degrees. As a result, clean air is blown out from the air outlet 5 into the indoor high-frequency space and the low-frequency space, and not only the large-size dust is efficiently guided to the suction port 2 by the circulating airflow, but also the indoor high-frequency space. Odor components floating in the air can be guided through the suction port 2, and even in an indoor environment where dust and odor are mixed, a circulating airflow is formed according to the type of dust and the concentration of odor, and efficiently sucked in. It can be cleaned with the filter 3.

  Even if the control unit 8 determines that the dust sensor 7 has detected dust having a large particle size, if the gas concentration detected by the gas sensor is less than the reference value of the pollutant gas, the detection value of only the dust sensor 7 is changed. Similar to the determination, the elevation direction of the blowing direction of the blowing louver 6 is maintained at about 65 degrees.

  The control unit 8 performs the same control as described in the first embodiment regardless of the gas concentration detected by the gas sensor 10 except when the dust sensor 7 detects dust having a large particle diameter. It is.

(Embodiment 4)
As shown in FIG. 1, a dust sensor 7 for detecting the particle size of dust in the air and a gas sensor 10 for detecting a gas concentration in the air are provided in the main body 1.

  The control unit is provided in the blowing direction of the blowing louver 6 and the first suction port 2a corresponding to both the detected value detected by the gas sensor 10 and the detected value detected by the dust sensor 7. It is set as the structure which controls the suction cover part 9 which can be opened and closed, respectively.

  In the above configuration, during operation of the main body 1, the control unit 8 determines that the dust sensor 7 has detected dust having a large particle size, and the gas concentration detected by the gas sensor 10 is greater than or equal to the contamination gas reference value. When the determination is made, the blowout louver 6 is reciprocally rotated by the blowout louver drive unit 11 between the elevation direction and the elevation angle of about 65 degrees. At the same time, the suction lid portion 9 is moved by the suction lid portion drive section 12 to open the first suction port 2a. Thereby, clean air is blown out from the blower outlet 5, and dust of large and small particle diameters mixed in the indoor high-frequency space and low-frequency space and the odor floating in the high-frequency space are efficiently removed at the first two locations of the main body 1. To the suction port 2a and the second suction port 2b, and dust and odors of large and small particle sizes sucked from the first suction port 2a and the second suction port 2b by the circulating airflow are cleaned by the filter 3. be able to.

  When the control unit 8 determines that the dust sensor 7 does not detect dust and determines that the gas concentration detected by the gas sensor 10 is equal to or higher than the pollutant gas reference value, the control unit 8 uses the blowing louver drive unit 11. It rotates to hold the elevation direction of the blowout louver 6 in the upward direction. At the same time, the suction lid 9 is moved by the suction lid drive unit 12 to close the first suction port 2a. Thereby, the air which blows out right above from the blower outlet 5 efficiently reaches the odor floating in the indoor high-frequency space, closes the first suction port 2a, and is provided in the upper part. By increasing the amount of air sucked from the suction port 2 b, odor components can be efficiently sucked into the main body 1 and cleaned by the filter 3.

  When the control unit 8 determines that the dust sensor 7 does not detect dust and determines that the gas concentration detected by the gas sensor 10 is less than the pollutant gas reference value, the control unit 8 moves the blowing louver 6 in the elevation direction. Control is performed so as to reciprocate between an upward direction and an elevation angle of about 65 degrees. At the same time, the suction lid portion 9 is moved by the suction lid portion drive section 12 to open the first suction port 2a. Thereby, the air which blows off from the blower outlet 5 forms alternately the airflow which circulates through the indoor high region space, and the air current which circulates through the low region space. As a result, the indoor air is uniformly sucked, and the odor that is distributed and floats in the high-frequency space in the room is guided to the gas sensor 10, and the tobacco smoke having a small particle size that is distributed in the high-frequency space in the room, The dust sensor 7 is able to guide the dust mixed with viruses, etc., which are distributed in the indoor low-frequency space and floated with large-sized mite feces and dead, pollen, dust, etc., and polluted air was generated. Sometimes it can be detected immediately.

  In other cases, the same control method as in the second embodiment is used regardless of the gas concentration detected by the gas sensor 10.

External perspective view of a partially broken air cleaner of Embodiments 1-4 of the present invention Same block circuit diagram Conceptual diagram of indoor air floating dust and odor distribution Perspective view showing a conventional air purifier Perspective view showing another conventional air cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Suction port 2a 1st suction port 2b 2nd suction port 3 Filter 4 Fan motor 5 Outlet 6 Outlet louver 7 Dust sensor 8 Control part 9 Suction cover part 10 Gas sensor

Claims (12)

A suction port that sucks in indoor air, a cleaning means that cleans the air sucked from the suction port, a blowing means that ventilates the cleaning means, and a clean air provided on the top surface of the main body is blown into the room. A blow-out port for discharging, a blow-out louver provided in the blow-out port, the angle of which can be adjusted in the elevation direction, a dust sensor for detecting the particle size of dust in the air, and the particle size of the dust output from the dust sensor An air cleaner comprising a control unit for adjusting the angle of the blowout louver in the elevation direction according to the size. The air purifier according to claim 1, wherein the control unit holds the blowing louver in an upward and obliquely upward direction when determining that the dust sensor has detected a large particle size dust. The air cleaner according to claim 1, wherein the control unit holds the blowing louver in an upward direction when determining that the dust sensor has detected a small particle size dust. The air cleaner according to claim 1, wherein the control unit controls the blowout louver to reciprocate in the elevation angle direction when it is determined that the dust sensor has detected dust having a large particle size and a small particle size. A suction port for sucking indoor air is composed of a first suction port provided at the lower front of the main body and a second suction port provided above the first suction port, and can be opened and closed to the first suction port. The air cleaner according to claim 1, wherein an air suction lid is provided, and the controller controls opening and closing of the first air inlet by the suction lid in accordance with the determined particle size of the dust. When it is determined that the dust sensor has detected a dust having a large particle size, or when it is determined that a dust having a large particle size and a small particle size has been detected, the control unit opens the first suction port by the suction lid portion. The air cleaner according to claim 5. The air cleaner according to claim 5, wherein when the control unit determines that the dust sensor has detected a small particle size dust, the first suction port is closed by the suction cover. 2. The air purifier according to claim 1, further comprising a gas sensor for detecting a gas concentration in the air, wherein the control unit adjusts an outlet louver provided at the outlet in an elevation angle direction in accordance with a detection value of the gas sensor. Machine. A gas sensor for detecting a gas concentration in the air, and the control unit adjusts the blowout louver provided at the blowout port in the elevation direction according to the detection value of the gas sensor and the detection value of the dust sensor, and The air cleaner according to claim 5, wherein opening and closing control of a suction lid portion provided at one suction port is performed. The control unit determines that the dust sensor has detected a large particle size dust, and when the gas concentration detected by the gas sensor is greater than or equal to the reference value of the pollutant gas, the control unit reciprocally rotates the blowout louver provided at the blowout port. The air cleaner according to claim 9, wherein the first suction port is opened by the suction lid portion. The control unit determines that the dust sensor is not detecting dust, and if the gas concentration detected by the gas sensor is greater than or equal to the reference value of the pollutant gas, the control unit sets the blowout louver provided at the blowout port directly upward. The air cleaner according to claim 9, wherein the first suction port is closed by a suction lid. When the control unit determines that the dust sensor does not detect dust and the gas concentration detected by the gas sensor is less than the reference value of the pollutant gas, the control unit reciprocally rotates the blowout louver provided at the blowout port. The air cleaner according to claim 9, wherein the first suction port is opened by the suction lid portion.

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