JP4408767B2 - 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.

In addition, a relaxation effect can be obtained by sending only negative ions into the room by switching the operation mode by the user.
JP 2002-102327 A (pages 4 to 10 and FIG. 8)

  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. In addition, since a user operation switches between an operation mode for sending positive ions and negative ions and an operation mode for sending negative ions by a user operation, an air cleaner that is easier to use is required.

  An object of this invention is to provide the air cleaner which can acquire the sterilization and relaxation effect of indoor living space quickly. Moreover, an object of this invention is to provide the air cleaner which can improve usability.

In order 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, an ion generator that releases ions into the air that has passed through the filter, 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 ; When there is a person in the air, air is sent out only from the first air outlet, and when there is no person in front, air is sent out from the second air outlet .

According to this configuration, when the human body sensor detects that a person is in front of the air cleaner, air and ions are sent out only from the first air outlet. When the human body sensor does not detect that a person is in front of the air cleaner, air and ions are sent out from the second outlet. At this time, air and ions may also be sent out from the first outlet.

  Further, the present invention is characterized in that, in the air cleaner having the above-described configuration, a mode in which positive ions and negative ions are released from an ion generator and a mode in which only negative ions are released can be switched alternatively. According to this configuration, when positive ions and negative ions are simultaneously sent into the room, airborne bacteria and odorous components in the room are surrounded and destroyed, and an effect of sterilization and odor removal can be obtained. Moreover, if only negative ions are sent out into the room, a relaxation effect can be obtained.

  According to the present invention, in the air cleaner having the above-described configuration, a damper is provided that guides air that has passed through the filter by switching between the first air outlet and the second air outlet. According to this configuration, the cleaned air and ions are sent out from the first air outlet, and are sent out from the second air outlet by switching the damper.

  In addition, the present invention provides an air cleaner having the above-described configuration, which includes an odor sensor for detecting the amount of odorous components in the air and a dust sensor for detecting the amount of dust in the air. It is characterized in that positive ions and negative ions are simultaneously sent into the room when the amount is higher than the fixed amount, and only negative ions are sent into the room when the amount of odorous components and dust in the room is smaller than the predetermined amount.

  According to this configuration, when the odor sensor detects that the indoor odor component amount is greater than the predetermined amount, or when the dust sensor detects that the indoor dust amount is greater than the predetermined amount, the first and second outlets Positive ions and negative ions are delivered from one or both of the above. Thereby, indoor sterilization and odor removal are performed. When it is detected by the odor sensor that the amount of the odor component in the room is less than the predetermined amount, and when the dust sensor detects that the amount of the dust in the room is less than the predetermined amount, one or both of the first and second outlets are used. Only negative ions are sent out. This provides an indoor relaxation effect.

  The present invention also provides an air purifier having the above-described configuration, which includes an odor sensor for detecting the amount of odorous components in the air, and simultaneously sends positive ions and negative ions into the room when the amount of odorous components in the room exceeds a predetermined amount. At the same time, when the amount of odorous components in the room is smaller than the predetermined amount, only negative ions are delivered into the room.

  According to this configuration, positive ions and negative ions are sent out from one or both of the first and second outlets when the odor sensor detects that the amount of the odor component in the room is larger than the predetermined amount. When it is detected by the odor sensor that the amount of the odor component in the room is less than a predetermined amount, only negative ions are sent from one or both of the first and second outlets.

  Further, the present invention is an air cleaner having the above-described configuration, and includes a dust sensor that detects the amount of dust in the air, and simultaneously sends positive ions and negative ions into the room when the amount of dust in the room is larger than a predetermined amount. When the amount of dust in the room is less than the predetermined amount, only negative ions are sent into the room.

  According to this configuration, positive ions and negative ions are sent from one or both of the first and second outlets when the dust sensor detects that the amount of dust in the room is greater than a predetermined amount. When the dust sensor detects that the amount of dust in the room is less than a predetermined amount, only negative ions are sent from one or both of the first and second outlets.

  In addition, in the air cleaner having the above-described configuration, air is blown from both the first and second air outlets regardless of the presence of a person until the predetermined period elapses after the start of operation. It is characterized in that positive ions and negative ions are simultaneously delivered into the room regardless of the amount of odor components and the amount of dust in the room. According to this configuration, immediately after the start of operation, positive ions and negative ions are sent out from the first and second outlets, and after a predetermined time has passed, depending on the detection results of the human body sensor, dust sensor, odor sensor, etc. The type of ion can be varied.

According to the present invention, a human body sensor that detects the presence of a person is provided on the front surface, and air is sent from only the first air outlet when a person is in front, and air is sent from the second air outlet when no person is in front. Therefore, when there are people in the living space, ions quickly spread through the living space, and when there are no people in the living space, ions spread throughout the room. Therefore, an easy-to-use air purifier can be obtained without requiring an operation for switching the air blowing direction.

  In addition, according to the present invention, the mode for emitting positive ions and negative ions from the ion generator and the mode for releasing only negative ions can be switched alternatively, so that the living space can be quickly sterilized and odor removed. At the same time, the effect of relaxation can be obtained quickly.

  According to the present invention, since the damper that selectively guides the air that has passed through the filter to the first air outlet and the second air outlet is provided, the air can be easily switched forward and upward and sent out.

  In addition, according to the present invention, there is provided an odor sensor that detects the amount of odorous components in the air and a dust sensor that detects the amount of dust in the air, and when the amount of odorous components or dust in the room is greater than a predetermined amount, And negative ions are sent into the room at the same time, and only negative ions are sent into the room when the amount of odorous components and dust in the room is less than the specified amount. If the odor components and dust are reduced and sterilization is not required, a relaxation effect can be obtained. Therefore, an easy-to-use air purifier can be obtained without requiring an operation for switching between modes with different ions.

  In addition, according to the present invention, a odor sensor that detects the amount of odorous components in the air is provided, and when the amount of odorous components in the room is larger than a predetermined amount, positive ions and negative ions are simultaneously sent into the room, and the amount of odorous components in the room. When the amount is less than the predetermined amount, only negative ions are delivered into the room. Therefore, when there are many odorous components, odor removal is performed, and when the odor components are reduced and odor removal is not required, a relaxation effect can be obtained. Therefore, an easy-to-use air purifier can be obtained without requiring an operation for switching between modes with different ions.

  In addition, according to the present invention, a dust sensor that detects the amount of dust in the air is provided, and when the amount of dust in the room is larger than a predetermined amount, positive ions and negative ions are sent into the room at the same time. Since only negative ions are delivered into the room when the amount is less than the fixed amount, sterilization is performed when there is a lot of dust, and a relaxation effect can be obtained when the amount of dust is reduced and sterilization is unnecessary. Therefore, an easy-to-use air purifier can be obtained without requiring an operation for switching between modes with different ions.

  In addition, according to the present invention, immediately after the start of operation, even if there is a person in front of the air conditioner, positive ions and negative ions are sent out from the first and second outlets. Can be quickly sterilized and odor removed.

  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. appear. 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 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 on each side surface. As shown in FIG. 17, the protrusion 63 of the pre-filter 52 is fitted into the locking hole 74, and 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 41, a dust sensor 42, and an odor sensor 43 provided on the front side of the operation panel 15 are connected to the control unit 40.

  The human body sensor 41 detects whether or not there is a person in front of the air cleaner 1. The dust sensor 42 detects whether the amount of dust in the room is larger or smaller than a predetermined amount. The odor sensor 43 detects whether the amount of the odor component in the room is larger or smaller than a predetermined amount. 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 having the above configuration. 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 humidification 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 or not a predetermined time has elapsed since the start of operation. If the predetermined time does not elapse, the process returns to step # 14, and steps # 14 and # 15 are performed until the predetermined time elapses.

  When the predetermined time has elapsed, the process proceeds to step # 21, and it is determined whether or not there is a person in front of the air cleaner 1 based on the detection of the human body sensor 41. If there is no person in front of the air cleaner 1, the process proceeds to step # 22, and if there is a person, the process proceeds to step # 23. In step # 22, 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 opened. As a result, as shown in FIG. 7, air is sent only upward from the air cleaner 1, and the air circulates in the room as indicated by the arrow C, so that the ions are distributed throughout the room R.

  In step # 23, 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. Steps # 21 to # 23 constitute air direction changing means for automatically changing the air blowing direction without user operation, and the easy-to-use air conditioner 1 can be obtained.

  In step # 24, it is determined by the detection of the dust sensor 42 whether the amount of dust in the room is larger or smaller than a predetermined amount. When the amount of dust in the room is larger than the predetermined amount, the process proceeds to step # 27, and when it is small, the process proceeds to step # 25. In step # 25, it is determined by the detection of the odor sensor 43 whether the amount of the odor component in the room is larger or smaller than a predetermined amount. If the amount of the odorous component in the room is larger than the predetermined amount, the process proceeds to step # 27, and if it is less, the process proceeds to step # 26.

  In step # 27, since at least one of the amount of dust and the amount of odorous component in the room is large, positive ions and negative ions are generated by the ion generator 26. This sterilizes airborne microbes floating on the interior of the room and removes odors from the room.

  In step # 26, the amount of dust in the room and the amount of odorous components are small, so that sterilization and odor removal are not necessary. For this reason, only negative ions are generated by the ion generator 26. Thereby, the relaxation effect can be acquired. Note that the steps # 24 to # 27 constitute mode switching means for automatically switching the modes for sending different ions without user operation, and the easy-to-use air conditioner 1 can be obtained.

  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.

  Similarly, when only negative ions are delivered into the room, the ions are similarly surrounded by moisture, and the disappearance of ions due to collision with dust is reduced. Therefore, the relaxation effect can be obtained efficiently and quickly.

  In step # 28, 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 # 21, and steps # 21 to # 28 are repeatedly performed.

  According to this embodiment, when a person is in front of the air purifier 1, air is sent out only from the second outlet 30, so that positive ions and negative ions are sent to the front of the air cleaner 1. It is possible to quickly sterilize the living space and remove odors. 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.

  Further, since air is sent upward from the first air outlet 29 when there is no person in front of the air cleaner 1, sterilization and odor removal of the entire room can be performed by sending positive ions and negative ions. . Moreover, the relaxation effect of the whole room | chamber interior can be acquired by sending only a negative ion.

  In step # 23, air may be sent from 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 first air outlet 29, 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.

  In the present embodiment, the type of ions generated according to the detection results of the dust sensor 42 and the odor sensor 43 is determined, but either one of the sensors is omitted and the type of ions generated according to the detection result of the other sensor. You may decide. In this case, for example, when the amount of dust in the room is small, only negative ions are sent into the room. In addition, when the amount of odorous components in the room is small, only negative ions are sent into the room.

  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.

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 combined state of the frame of the filter unit for air cleaning of an air cleaner of embodiment of this invention, and a play filter.

Explanation of symbols

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 air outlet 31 Ventilation path 32 Space part 33 Damper 40 Control part 41 Human body sensor 42 Dust sensor 43 Odor sensor 52 Prefilter 53 Filter retainer frame 54 Deodorization filter 55 Dust collection filter

Claims (7)

A blower that takes in indoor air and sends it out, a filter that collects dust in the air, an ion generator that discharges ions to the air that has passed through the filter, and an air that has passed through the filter is blown upward. A first air outlet, a second air outlet that blows out the air that has passed through the filter forward, and a human body sensor that senses the presence of a person, and only from the first air outlet when a person is in front An air purifier characterized by delivering air and delivering air from the second outlet when there is no person ahead .   The air cleaner according to claim 1, wherein the mode can be selectively switched between a mode in which positive ions and negative ions are released from the ion generator and a mode in which only negative ions are released.   The air cleaner according to claim 1 or 2, further comprising a damper that switches and guides the air that has passed through the filter to the first air outlet and the second air outlet. Equipped with an odor sensor that detects the amount of odorous components in the air and a dust sensor that detects the amount of dust in the air. When the amount of odorous components or dust in the room exceeds the specified amount, positive ions and negative ions are The air cleaner according to any one of claims 1 to 3, wherein only negative ions are sent into the room when the amount of odor component and dust in the room is smaller than the predetermined amount. . Equipped with an odor sensor that detects the amount of odorous components in the air, and when the amount of odorous components in the room is greater than the predetermined amount, positive ions and negative ions are sent into the room at the same time. The air cleaner according to any one of claims 1 to 3, wherein, when there are few, only negative ions are sent into the room. A dust sensor that detects the amount of dust in the air is provided. When the amount of dust in the room is larger than the predetermined amount, positive ions and negative ions are simultaneously sent into the room, and when the amount of dust in the room is smaller than the predetermined amount, it is negative. The air cleaner according to any one of claims 1 to 3, wherein only ions are delivered into the room. From the start of operation until the predetermined period elapses, air is blown out from both the first and second outlets regardless of the presence of a person, and positive ions are used regardless of the amount of odorous components in the room and the amount of dust in the room. The air cleaner according to any one of claims 4 to 6 , wherein negative ions are simultaneously sent into the room.

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