JP5160494B2 - Air cleaner - Google Patents

Description

  The present invention relates to an air cleaner that takes in indoor air and cleans it, and more particularly to an air cleaner that sends out ions together with the cleaned air.

  A conventional air cleaner is disclosed in Patent Document 1. This air purifier has an intake port on the front surface of the housing and a blower outlet on the back surface. A blower is disposed in the housing, and a filter that collects dust is provided between the blower and the air inlet. Further, an ion generator that emits positive ions and negative ions is provided in the vicinity of the outlet.

  When the blower is driven, the indoor air taken into the housing from the front through the air inlet is removed by the filter, and the ions are discharged toward the upper side of the air outlet including ions released from the ion generator. As a result, the purified air containing the ions circulates widely in the room and reaches every corner.

  Positive ions and negative ions surround and destroy airborne fungi and viruses such as indoor fungi and viruses. As a result, indoor air can be cleaned and sterilization and odor removal can be performed.

  Moreover, a relaxation effect can be acquired by sending only negative ions into the room by switching the operation mode by the user.

  According to the above conventional air cleaner, ions sent together with air upward from the air outlet circulate greatly along the wall surface of the room. For this reason, ions spread throughout the room, and sterilization, odor removal, and relaxation effects can be obtained. However, there is a problem that ions do not spread quickly to the living space where the person in the center of the room lives, and a comfortable living space cannot be obtained quickly.

  Therefore, Patent Document 2 discloses a first air outlet that blows air that has passed through a filter upward, a second air outlet that blows air that has passed through a filter forward, and a human body sensor that senses the presence of a person. It has been proposed to send air containing ions upward only from the second air outlet when there is a person ahead. According to such control of the air purifier, when a person is in front of the air purifier, ions are quickly distributed in the room, and when there is no person in front, ions are distributed throughout the room. Therefore, an easy-to-use air purifier can be obtained without requiring an operation for switching the air blowing direction.

JP 2002-102327 A JP 2006-46729 A (paragraph [0055], FIG. 8)

  However, according to the air cleaner of Patent Document 2, when there is a person in front of the air cleaner, air is uniformly sent forward from the second air outlet, so that the air blown from the second air outlet There was a problem that it was hard to hit the body and feel cold. This problem was particularly noticeable when the air flow rate was large and the sensible temperature was low.

  The present invention has been made in view of the above-described conventional problems, and provides an air purifier that can efficiently remove floating bacteria and odors in a room while suppressing a person in front of the air purifier from feeling cold. For the purpose.

To achieve the above object, the present invention provides a blower that takes in indoor air and sends it out, a filter that collects dust in the air, and ion generation that releases positive ions and negative ions into the air that has passed through the filter. A device, a first air outlet that blows air that has passed through the filter upward, a second air outlet that blows air that has passed through the filter forward, and a human body sensor that senses the presence of a person in front A temperature sensor for detecting the temperature in the room, a humidity sensor for detecting the humidity in the room, and a damper for switching the air that has passed through the filter to the first air outlet and the second air outlet,
The following formula for Misnar's sensory temperature Sensory temperature = 37-(37-t) / (0.68-0.0014 * h + 1 / A)-0.29 * t * (1-h / 100)
(However, t: indoor temperature (° C), h: indoor humidity (%), v: wind speed around the person (m / s), and the wind speed blown from the outlet and the distance sensor Based on the distance and the value calculated by the experimentally calculated attenuation rate, A: 1.76 + 1.4 * (v ^ 0.75))
When a person is in front and the temperature is below a predetermined value, air is sent out only from the first air outlet. On the other hand, even if there is a person in the front, the temperature is more than the predetermined value. When the air pressure is high, air is sent out from the second air outlet.

  According to this configuration, dust is removed from the air taken in from the air inlet by driving the blower. The positive ions and negative ions released by the ion generator are included in the air from which the dust has been removed. And when the human body sensor detects that there is a person in front of the air purifier, when the sensible temperature is below a predetermined value, air and ions are sent out from the first air outlet, and the sensible temperature is below the predetermined value. When it is higher, air and ions are delivered from the second outlet. At this time, air and ions may also be sent out from the first outlet. The air sent out from the first air outlet circulates greatly along the wall surface in the room. The air sent out from the second air outlet is guided to the living space substantially in the center of the room.

  Further, the present invention is characterized in that air is sent out from both the first and second outlets when there is no person ahead. According to this configuration, when the human body sensor does not detect the presence of a person in front of the air cleaner, air and ions are sent from the first and second outlets. At this time, air and ions may also be sent out from the first outlet.

  In addition, the present invention is characterized in that air is blown out from both the first and second outlets regardless of the presence of a person until a predetermined period elapses after the start of operation. According to this configuration, immediately after the start of operation, positive ions and negative ions are sent out from both the first and second outlets, and the blowing direction is varied according to the detection result of the human body sensor after a predetermined time has elapsed.

  According to the air purifier of the present invention, by calculating the temperature of sensation using the formula of the temperature of sensual temperature in consideration of the temperature and humidity in the room and the wind speed around the person, by controlling the blowing direction of air and ions It is possible to efficiently remove floating bacteria and odors in the room while preventing the person in front of the air cleaner from feeling cold. Specifically, when a person is in front and the sensible temperature is below a predetermined value, air and ions are sent upward only from the first outlet, so that the person in front is not hit by the wind and is cold. Ions can be distributed throughout the room without feeling. On the other hand, even if there is a person in the front, if the temperature is higher than the predetermined value, it will not feel so cold even if it hits the wind, so by sending air and ions forward from the second outlet , Can quickly spread ions to the living space.

  In addition, according to the present invention, when there is no person in the front, air and ions are sent upward and forward from both the first and second outlets, so that the ions can be quickly distributed throughout the room space. Can do.

  Further, according to the present invention, air and ions are sent upward and forward from both the first and second air outlets even if there is a person in front of the air conditioner immediately after the start of operation. It is possible to quickly perform sterilization and odor removal of the entire room including

The perspective view which shows the air cleaner of embodiment of this invention. Side surface sectional drawing which shows the air cleaner of embodiment of this invention The perspective view which shows the ion generator of the air cleaner of embodiment of this invention. The block diagram which shows the structure of the air cleaner of embodiment of this invention. The flowchart which shows operation | movement of the air cleaner of embodiment of this invention. The figure explaining the flow of the indoor air by the air cleaner of embodiment of this invention The figure explaining the flow of the indoor air by the air cleaner of embodiment of this invention The figure explaining the flow of the indoor air by the air cleaner of embodiment of this invention The disassembled perspective view which shows the filter unit for air purification of the air cleaner of embodiment of this invention. The perspective view which shows the pre filter of the air cleaner of embodiment of this invention. The perspective view which shows the deodorizing filter of the air cleaner of embodiment of this invention. The side view which shows the deodorizing filter of the air cleaner of embodiment of this invention. Side surface sectional drawing which shows the deodorizing filter of the air cleaner of embodiment of this invention The perspective view which shows the dust collection filter of the air cleaner of embodiment of this invention. The perspective view which shows the filter holding frame of the air cleaner of embodiment of this invention. The perspective view which shows the frame of the filter unit for air purification of the air cleaner of embodiment of this invention. The perspective view which shows the coupling | bonding state of the frame of the filter unit for air purification of the air cleaner of embodiment of this invention, and a pre filter.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an air cleaner according to an embodiment. In the air cleaner 1, the main body 10 is erected by the support of the base 11. The front surface of the main body 10 is covered with a front panel 12. The front panel 12 is provided with an air inlet 13 for taking in indoor air, and a side air inlet 14 is formed by a gap between the main body 10 and the front panel 12. An operation panel 15 for performing user operations is provided on the upper portion of the main body 10.

  FIG. 2 is a side sectional view showing a state in which the front panel 12 of the air cleaner 1 is removed. A blower 25 that intakes in the axial direction and exhausts in the circumferential direction is provided in the main body 10. The blower 25 is arranged with the intake side facing the intake port 13, and the front surface is covered with a ventilation panel 28 having a ventilation port 27. The ventilation panel 31 forms a ventilation path 31 extending vertically in the rear part of the main body 10.

  The ventilation path 31 is provided with a first air outlet 29 that opens upward, and a second air outlet 30 that is bent obliquely upward and opens forward. In addition, a damper 33 is provided in the middle of the ventilation path 31. When the air is blown out only from the first air outlet 29 by the damper 33, or when air is blown out only from the second air outlet 30, air is blown out from both the first and second air outlets 29 and 30. You can switch in case.

  An ion generator 26 is provided between the blower 25 and the outlet 29. As shown in FIG. 3, the ion generator 26 has an ion generation surface 26 a composed of electrodes that generate ions when a high voltage is applied, and the ion generation surface 26 a is arranged facing the ventilation path 31. By disposing the ion generator 26 between the blower outlet 29 and the blower 25, the disappearance of ions due to the collision with the blower 25 can be prevented. In addition, an electrode for generating ions may be disposed in the ventilation path 31 and the power supply unit of the ion generator 26 may be disposed at another position.

A voltage having an AC waveform or an impulse waveform is applied to the ion generation surface 26 a of the ion generator 26. When the applied voltage of the ion generating surface 26a is positive, positive ions mainly composed of H ⁺ (H ₂ O) _n are generated, and when negative voltage is applied, negative ions mainly composed of O ₂ ⁻ (H ₂ O) _m are generated. Occur. Here, n and m are integers. H ⁺ (H ₂ O) _n and O ₂ ⁻ (H ₂ O) _m agglomerate and surround the surface of airborne bacteria and odor components.

Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are aggregated and formed on the surface of the microorganism or the like by collision. Destroy airborne bacteria and odorous components. Here, n ′ and m ′ are integers. Therefore, indoor sterilization and odor removal can be performed by generating positive ions and negative ions and sending them out from the first and second outlets 29 and 30.

H ⁺ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _m → OH + _1/2 O ₂ + (n + m) H ₂ O (1)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′} → 2 · OH + O ₂ + (n + n ′ + m + m ′) H ₂ O (2)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′} → H ₂ O ₂ + O ₂ + (n + n ′ + m + m ′) H ₂ O (3)

  An air cleaning filter unit 20 and a humidifying unit 21 are disposed between the front panel 12 and the ventilation panel 28. The air cleaning filter unit 20 disposed facing the air inlet 13 (see FIG. 1) is designed to be incorporated into an air cleaner. FIG. 9 shows an exploded perspective view of the air cleaning filter unit 20.

  In the air cleaning filter unit 20, three types of filters, a pre-filter 52, a deodorizing filter 54, and a dust collection filter 55, are arranged in the frame 56 in order from the air suction side. A filter presser 53 is disposed between the prefilter 52 and the deodorizing filter 54.

  FIG. 10 is a perspective view showing the pre-filter 52. The pre-filter 52 is formed by welding a polypropylene mesh 62 to a rectangular frame 61 having four stages and four rows of windows formed of synthetic resin such as ABS. Two projections 63 are provided on both sides of the frame 61, and a knob 64 is provided on the front. The pre-filter 52 can collect large dust in the intake air.

  11 and 12 show a perspective view and a side view of the deodorizing filter 54. The deodorizing filter 54 has a rectangular bag body 41 made of polypropylene fiber or polyester fiber. The bag body 41 is divided into a plurality of storage chambers 42 having a uniform size in the vertical direction. In each storage chamber 42, an adsorbent 18 (see FIG. 13) such as activated carbon is uniformly dispersed and packed. Thereby, each storage chamber 42 swells and the deodorizing filter 54 has irregularities on the surface. The number of storage chambers 42 is not particularly limited. As the adsorbent 18, activated carbon such as coconut palm, coal pitch, polyacrylonitrile, or cellulose can be used.

  FIG. 13 shows a side sectional view of the deodorizing filter 54. Each storage chamber 42 is formed by sewing the front surface side and the back surface side of the bag body 41 together. At this time, the stitches 67 are sewn so as to be inclined. When the deodorizing filter 54 is attached, the adsorbent 68 packed in each storage chamber 42 is lowered by its own weight, and a space portion 42 a is formed above each storage chamber 42. At this time, since the seam 67 is inclined, the adsorbent 18 is packed in the lower portion of the storage chamber 42 above each storage chamber 42.

  As a result, as shown by the arrow α, the air that has entered the deodorizing filter 54 always passes through and is released while in contact with the adsorbent 18, thereby improving the deodorizing effect. Moreover, it is only necessary to arrange the bags 41 in a single row, and the deodorizing filter 54 can be thinned.

  FIG. 14 is a perspective view of the dust collection filter 55. The dust collection filter 55 is composed of a HEPA filter, and a frame material (not shown) is welded by hot melt so as to cover the filter material (not shown). The filter medium is formed by superposing and folding an aggregate made of a polyester / vinylon nonwoven fabric and a melt blown nonwoven fabric. Tremicron (registered trademark) manufactured by Toray Industries, Inc., which has been processed by electric stone as a melt blown nonwoven fabric, is used. In addition, an antibacterial sheet made of a non-woven fabric processed with hydroxyapatite is thermocompression-bonded on the surface of the filter medium. Fine dust is collected by the dust collection filter 55.

  FIG. 15 is a perspective view of the filter pressing frame 53 as viewed from the deodorizing filter 54 side. The filter holding frame 53 has a plurality of rows and a plurality of rows of square holes 65 that allow air to flow into a rectangular frame 64. The height of the square hole 65 is set according to the unevenness of the surface of the deodorizing filter 54.

  Further, on the surface facing the leeward side deodorizing filter 54, a bar-like projection 66 is provided between the square holes 65. The protrusion 66 has the same horizontal width as the filter pressing frame 53 and protrudes in the horizontal direction toward the deodorizing filter 54. The deodorizing filter 54 is pressed by the protrusion 66 to prevent the positional deviation. The protrusion 66 does not necessarily have a bar shape, and may be a protrusion such as a pin.

  FIG. 16 is a perspective view of the frame body 61. The frame 61 is composed of a box 71 having an open windward surface, and a square hole 72 through which air can flow in is formed by a lattice frame 73 on the leeward surface. The thickness of the frame 61 is such that the dust collection filter 55, the deodorizing filter 54, the filter holding frame 53, and the prefilter 52 can be accommodated. Two locking holes 74 are provided on both side surfaces of the box 71. As shown in FIG. 17, the protrusion 63 of the pre-filter 52 is fitted into the locking hole 74, so that the air cleaning filter unit 20 is integrally formed without the internal deodorizing filter 54 and the like falling off.

  A space 32 having a predetermined width is formed between the air cleaning filter unit 20 and the ventilation panel 28. By providing the space portion 32, the air that has passed through the air cleaning filter unit 20 flows smoothly into the vent hole 27, and pressure loss and noise can be reduced.

  The humidifying part 21 arranged at the lower part of the space part 32 is constituted by a humidifying filter 22, a tray 23 and a water tank 24 (see FIG. 1). The water tank 24 stores water for humidification, and is detachably installed on the side of the main body 10. The tray 23 is connected to a water tank 24 and collects water supplied from the tank. The humidifying filter 22 is made of a water-absorbing material having water absorption soaked in the tray 23, and is formed in a folding screen that is bent zigzag in the front-rear direction. Thereby, the humidification filter 22 sucks up the water in the tray 23 and retains it.

  FIG. 4 is a block diagram showing the configuration of the air cleaner 1. In the air cleaner 1, a control unit 40 that controls each unit is provided on the back side of the operation panel 15 (see FIG. 1). A human body sensor 71, a temperature sensor 72, a humidity sensor 73, and a distance measuring sensor 74 provided on the front side of the operation panel 15 are connected to the control unit 40.

  The human body sensor 71 detects whether or not there is a person in front of the air cleaner 1. The temperature sensor 72 detects the temperature in the room. The humidity sensor 73 detects indoor humidity (relative humidity). When the human body sensor 71 detects that there is a person ahead, the distance measuring sensor 74 measures the distance from the second air outlet 30 of the main body 2 to the detected person. Further, the blower 25, the ion generator 26 and the damper 33 are driven under the control of the control unit 40.

  FIG. 5 is a flowchart showing the operation of the air conditioner 1 configured as described above. When the air conditioner 1 is driven, the blower 25 is turned on in Step # 11, and the ventilation path 31 is opened toward both the first and second outlets 29 and 30 by the damper 33 in Step # 12. In step # 13, positive ions and negative ions are released by the ion generator 26.

  Thereby, indoor air is taken into the main body 10 from the air inlet 13. The air taken in from the intake port 13 passes through the air cleaning filter unit 20 as shown by an arrow A (see FIG. 2), and dust is collected, and viruses and allergens are inactivated. The air that has passed through the air cleaning filter unit 20 flows into the ventilation path 31 through the vent hole 27.

  Further, the lower air that has passed through the air cleaning filter unit 20 collides with the humidifying filter 22, and the back side of the humidifying filter 22 is shielded, so that the arrow B along the folded wall surface of the water absorbing material (see FIG. 2). As shown. At this time, the moisture retained in the humidifying filter 22 is taken into the rising air, and the humidified air flows into the ventilation path 31 through the vent 27. The air flowing through the ventilation path 31 contains positive ions and negative ions released from the ion generator 26, and is sent into the room from the first and second outlets 29 and 30.

  As a result, as shown in FIG. 6, the air sent from the first outlet 29 circulates along the wall surface of the room R as indicated by the arrow C, and positive ions and negative ions are distributed throughout the room R. Further, the air sent out from the second outlet 30 leads positive ions and negative ions to the living space near the center of the room R as indicated by an arrow D. Therefore, immediately after the start of the operation of the air conditioner 1, positive ions and negative ions are distributed throughout the room R including the peripheral part of the room R and the living space. As a result, sterilization of airborne microbes floating on the inside of the room due to dust and removal of odors in the room can be performed quickly.

  In step # 14, it is determined whether or not an end operation has been performed. When the end operation is performed, the process ends. In step # 15, it is determined whether 1 minute has elapsed since the start of operation. If the predetermined one minute has not elapsed, the process returns to step # 14 and waits for steps # 14 and # 15 until one minute has elapsed. One minute is an example of a predetermined time.

  When one minute has passed, the process proceeds to step # 16, and it is determined by the detection of the human body sensor 71 whether or not there is a person within 2.5 m ahead of the air cleaner 1. If there is a person within 2.5 m ahead of the air cleaner 1, the process proceeds to step # 17, and if there is no person, the process proceeds to step # 19.

  In step # 17, when the sensible temperature is 22 ° C. or lower, the process proceeds to step S18, and the ventilation path 31 toward the second outlet 30 is closed by switching the damper 33, and only the ventilation path toward the first outlet 29 is provided. Opened. As a result, as shown in FIG. 7, air is sent only upward from the air purifier 1, resulting in an air flow circulating in the room as indicated by an arrow C. Therefore, it is possible to spread ions throughout the room R without the wind hitting the person in front and feeling cold. In addition, 22 degreeC is an example of a predetermined value. This value can be changed by setting according to individual differences. In step # 18, the ion emission concentration of positive ions and negative ions discharged from the first outlet 29 is increased, so that the amount of ions carried by the wind can be prevented from decreasing. As a method for increasing the ion emission concentration, it is conceivable to increase the number of rotations of the blower 25, increase the amount of positive ions and negative ions generated from the ion generator 26, or both. The ion generation amount can be adjusted by providing a plurality of ion generators 26 side by side and increasing or decreasing the number of ion generators to be operated.

Here, the calculation formula of “Missnal's sensory temperature” is used for calculation of the sensory temperature.
Experience temperature = 37-(37-t) / (0.68-0.0014 * h + 1 / A)-0.29 * t * (1-h / 100)
However,
t: Indoor temperature (° C) detected by temperature sensor 72
h: Indoor humidity detected by humidity sensor 73 (%)
v: Wind speed around the person (m / s) calculated based on the attenuation rate calculated by experiment based on the wind speed blown from the outlet and the distance of the distance measuring sensor 74
A: 1.76 + 1.4 * (v ^ 0.75)

  The table below illustrates that even when the temperature / humidity is the same (temperature 25 ° C., humidity 60%), the perceived temperature calculated by the Misnar equation differs depending on the wind speed around the person.

  On the other hand, when the perceived temperature is higher than 22 ° C. in step # 17, the air path is not switched by the damper 33, and as shown in FIG. 6, upward and forward from both the first and second outlets 29 and 30. The air is sent out to return to step # 14, and steps # 14 to # 17 are repeated. Even if there is a person in the front, if the temperature is higher than a predetermined value, the air does not feel so cold even if it hits the wind. Therefore, the air is directed upward and forward from both the first and second outlets 29 and 30. By sending, ions can be quickly spread throughout the living space.

  In step # 19, the ventilation path 31 toward the first outlet 29 is closed by switching the damper 33, and only the ventilation path toward the second outlet 30 is opened. As a result, as shown in FIG. 8, air is sent out only forward from the air purifier 1, and ions quickly reach the living space in the center of the room R as indicated by an arrow D. By steps # 16 to # 19, wind direction varying means for automatically varying the air blowing direction without user operation is configured, and the easy-to-use air conditioner 1 is obtained. In step # 19, the air path is not switched by the damper 33 and air is sent upward and forward from both the first and second outlets 29 and 30 as shown in FIG. May be.

  Since the air containing ions is humidified by the humidifying unit 21, the ions are protected by being surrounded by water molecules. For this reason, the degree to which ions collide with airborne fungi such as fungi and viruses in the air and odorous components to surround them increases. In addition, when ions collide with dust in the air, the lifetime is prolonged because the ions are protected by water molecules. Even when ions collide, the disappearance of ions is reduced because they are protected by water molecules. Therefore, airborne microbes and odorous components in the room can be quickly removed, and ions delivered into the room are spread all over and the ion distribution becomes uniform.

  In step # 20, it is determined whether or not an end operation has been performed. If an end operation has been performed, the process ends. When the end operation is not performed, the process returns to step # 15, and steps # 15 to # 20 are repeatedly performed.

  According to this embodiment, even if there is a person in front of the air purifier 1, when the sensible temperature is higher than a predetermined value, air is sent out only from the second air outlet 30, so that positive ions and negative ions are generated. By sending it out, the living space in front of the air purifier 1 can be sterilized and the odor can be removed quickly. Moreover, the relaxation effect of living space can be rapidly acquired by sending only a negative ion. Thereby, the living space where a person exists can be rapidly made into a comfortable space. In addition, since the ions reach the entire living space by blowing air from the first and second outlets 29 and 30 simultaneously, a comfortable space can be quickly obtained.

  In addition, when there is no person in front of the air cleaner 1, air is sent upward and forward from both the first and second outlets. Sterilization and odor removal can be performed. Moreover, the relaxation effect of the whole room | chamber interior can be acquired by sending only a negative ion.

  In step # 19, air may be sent from both the first and second outlets 29 and 30. Thereby, ions can be quickly distributed throughout the room. At this time, when the air is sent only from the second outlet 30, the amount of ions to be sent upward increases, so that the ions spread to every corner.

  In addition, immediately after the start of operation, air is sent out from the first and second outlets 29 and 30 even if there is a person in front of the air conditioner by turning on the power. Thereby, positive ions and negative ions are quickly spread throughout the room to sterilize and remove odors, and a comfortable room can be quickly obtained.

  ADVANTAGE OF THE INVENTION According to this invention, it can use for an air cleaner and an air conditioner which have a filter, collects dust, and sends out ion to room | chamber interior.

DESCRIPTION OF SYMBOLS 1 Air cleaner 10 Main body part 12 Front panel 13 Air inlet 14 Side air inlet 15 Operation panel 20 Air purifying filter unit 21 Humidifier 22 Humidifying filter 23 Tray 25 Blower 26 Ion generator 27 Vent 28 Vent panel 29 1st blower Exit 30 Second outlet 31 Ventilation path 32 Space 33 Damper 40 Control unit 71 Human body sensor 72 Temperature sensor 73 Humidity sensor 74 Distance sensor

Claims (3)

A blower for sending takes in indoor air, a filter for collecting dust in the air, an ion generating device that emits ion-to the air passing through the filter, towards the air passing through the filter upwards A first air outlet that blows out; a second air outlet that blows out air that has passed through the filter forward; a human body sensor that detects the presence of a person in front; a temperature sensor that detects indoor temperature; and indoor humidity A humidity sensor for detecting air, a distance measuring sensor for measuring a distance to a person detected by the human body sensor, and a damper for switching the air that has passed through the filter to a first air outlet and a second air outlet. ,
The following formula for Misnar's sensory temperature Sensory temperature = 37-(37-t) / (0.68-0.0014 * h + 1 / A)-0.29 * t * (1-h / 100)
(However, t: indoor temperature (° C), h: indoor humidity (%), v: wind speed around the person (m / s), and the wind speed blown from the outlet and the distance sensor Based on the distance and the value calculated by the experimentally calculated attenuation rate, A: 1.76 + 1.4 * (v ^ 0.75))
When the human body is in front and the human body temperature is equal to or lower than the predetermined value, air is sent out only from the first air outlet. An air cleaner, wherein air is sent out from the second air outlet when it is high.   The air cleaner according to claim 1, wherein air is sent out from both the first and second air outlets when there is no person ahead.   3. The air cleaner according to claim 1, wherein air is blown out from both the first and second air outlets regardless of the presence of a person until a predetermined period has elapsed after the start of operation.

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