JP2021042936A - Air conditioner - Google Patents

Abstract

To provide an air conditioner that can change an air flow in accordance with a state of the air blown out from a blowout port.SOLUTION: An air conditioner includes: a fan for blowing air so as to blow out the air, which is sucked from a suction port and of which dust is collected by a filter part, from a blowout port; a first detector for detecting a state of air downstream of the filter part; and a control unit for controlling the rotation number of the fan on the basis of a detection value of the first detector.SELECTED DRAWING: Figure 9

Description

The present invention relates to an air conditioner.

For example, Patent Document 1 includes a dirt sensor provided near the suction port and detects the dust concentration in the air, determines the degree of dirt based on the detection value of the dirt sensor, and based on the determined degree of dirt. An air purifier with variable ventilation level is disclosed. The larger the degree of dirtiness, the higher the rotation speed of the blower, and the higher the air flow level, the more the air volume is changed according to the degree of dirtiness.

Japanese Unexamined Patent Publication No. 2016-215117

However, in the air purifier described in Patent Document 1, for example, the filter unit (for example, a dust collecting filter that collects dust, a deodorizing filter that adsorbs odorous components, etc.) has deteriorated due to long-term use, or the filter unit has a filter portion. When odorous components and dust are attached, the sucked air may be blown out toward the room without being purified, thereby diffusing the dust and odorous components into the room.

In view of the above problems, it is an object of the present invention to provide, as an example, an air conditioner capable of changing the air volume according to the state of the air blown out from the outlet.

The air conditioner according to one aspect of the present invention has a fan that sucks air from a suction port and blows out air collected by a filter unit so as to blow it out from an outlet, and a state of air on the downstream side of the filter unit. A first detection unit for detecting the above, and a control unit for controlling the rotation speed of the fan based on the detection value of the first detection unit.

It is a perspective view of the air purifier which concerns on Embodiment 1 of this invention. It is a front view of the air purifier shown in FIG. It is a right side view of the air purifier shown in FIG. It is a top view of the air purifier shown in FIG. It is a VV cross-sectional view of the air purifier shown in FIG. It is a partially enlarged sectional view which shows the outlet of the air purifier shown in FIG. (A) is a perspective view showing the rotation mechanism of the air purifier shown in FIG. 1 (b) is an exploded perspective view showing the rotation mechanism of the air purifier shown in FIG. 1 (c) is shown in FIG. It is a partially enlarged sectional view which shows the rotation mechanism of the air purifier. (A) It is a side sectional view which shows the 1st posture of the operation part of the air purifier shown in FIG. 1 (b) is the side sectional view which shows the 2nd posture of the operation part of the air purifier shown in FIG. .. It is a block diagram which shows the hardware composition of the control part of the air purifier shown in FIG. (A) It is a figure which shows the rotation speed control of a fan according to the degree of pollution of the air on the suction port side of the air purifier shown in FIG. 1 (b) is the air on the suction port side of the air purifier shown in FIG. It is a figure which shows the rotation speed control of a fan according to the dry humidity of. It is a block diagram which shows the functional structure of the control part of the air purifier shown in FIG. It is a flowchart which shows 1st Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. It is a flowchart which shows the 2nd Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. It is a flowchart which shows the 3rd Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. It is a flowchart which shows 4th Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. It is a flowchart which shows the 5th Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. It is a flowchart which shows 6th Embodiment of the abnormality detection processing by the control part of the air purifier shown in FIG. (A) It is a figure which shows the light emitting pattern of the 1st light emitting part of the air purifier shown in FIG. 1 (b) is a figure which shows the light emitting timing of the 1st light emitting part of the air purifier shown in FIG. .. (A) It is a figure which shows the light emitting pattern of the 2nd light emitting part of the air purifier shown in FIG. 1 (b) is the figure which shows the light emitting timing of the 2nd light emitting part of the air purifier shown in FIG. .. (A) It is a figure which shows the light emitting timing of the 1st light emitting part and the 2nd light emitting part when the degree of dirt | dirt | degree of the air purifier shown in FIG. 1 changes to "0", is shown in FIG. It is a figure which shows the light emission timing of the 1st light emitting part and the 2nd light emitting part when the dirt degree of an air purifier changes to "1" (c), and the dirt degree of the air purifier shown in FIG. 1 is "2". It is a figure which shows the light emitting timing of the 1st light emitting part and the 2nd light emitting part when it changes to. It is a flowchart which shows the interlocking process of the light emitting pattern of the 1st light emitting part and the 2nd light emitting part by the control part of the air purifier shown in FIG. (A) It is a figure which shows the 2nd Embodiment of the light emitting pattern of the 1st light emitting part and the 2nd light emitting part of the air purifier shown in FIG. It is a figure showing the image which is recollected for each combination with the light emitting pattern of 2 light emitting part. (A) It is a figure which shows 3rd Embodiment of the light emitting pattern of the 1st light emitting part and 2nd light emitting part of the air purifier shown in FIG. It is a figure showing the image which is recollected for each combination with the light emitting pattern of 2 light emitting part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present specification and drawings, the same or equivalent elements may be designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention may be omitted from the illustration. Furthermore, the forms of the components shown in such embodiments are merely examples, and the present invention is not limited to these forms.

(First Embodiment)
The overall structure of the air purifier 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. In the following description, the side of the air purifier 100 where the suction port 120 is provided is referred to as the rear side or the back side, and the side of the air purifier 100 facing the rear side is referred to as the front side or the front side. The right side of the air purifier 100 means the right side when the air purifier 100 is viewed from the front, and the left side of the air purifier 100 means the left side when the air purifier 100 is viewed from the front. To do. FIG. 1 is a perspective view of the air purifier 100. FIG. 2 is a front view of the air purifier 100. FIG. 3 is a right side view of the air purifier 100. FIG. 4 is a plan view of the air purifier 100. FIG. 5 is a sectional view taken along line VV of the air purifier 100 shown in FIG.

The appearance of the air purifier 100 will be described with reference to FIGS. 1 to 4. The air purifier 100 includes a housing 110. The housing 110 is composed of a front surface 110a, a rear surface 110b, a left side surface 110c, a right side surface 110d, an upper surface 110e, and a bottom surface 110f, and is formed in a substantially frustum shape having an opening in the upper surface 110e. The housing 110 is formed so as to expand outward from the upper part to the lower part. Specifically, the front surface 110a and the rear surface 110b are provided so as to be inclined outward so that the distance between the front surfaces 110a and the rear surface 110b increases toward the lower part. Similarly, the left side surface 110c and the right side surface 110d are provided so as to be inclined outward so that the distance between them increases toward the lower part. The front surface 110a is connected to the left side surface 110c and the right side surface 110d by smooth curved surfaces, respectively. Similarly, the rear surface 110b is connected to the left side surface 110c and the right side surface 110d by smooth curved surfaces, respectively. As described above, the outer peripheral surface surrounding the housing 110 is formed in a substantially rectangular shape in a plan view.

A suction port 120 for taking in air (wind) is formed on the rear surface 110b of the housing 110. The suction port 120 is composed of a plurality of holes formed in a rear panel that is detachably provided in the housing 110. An air outlet 130 for blowing air (wind) is formed on the upper surface 110e of the housing 110. A water supply tank 140 is detachably provided on the right side surface 110d of the housing 110. A grip portion 150 is formed on each of the left side surface 110c and the right side surface 110d of the housing 110, making it easy to carry the housing 110. A plurality of wheels 160 are attached to the bottom surface 110f of the housing 110, which makes it possible to smoothly move the air purifier 100 along the floor surface S. The outlet 130 is provided with a louver 300, which will be described later, for switching the direction of the air (wind) blown from the outlet 130.

A display unit 170 indicating the operating state of the air purifier 100 may be provided on the front surface 110a of the housing 110. As an example, the display unit 170 is configured to include a substrate on which an LED light source is arranged, and irradiates the user with light from the inside of the housing 110 toward the front surface 110a of the housing 110 having translucency. The operating state of the air purifier 100 and the like are displayed.

The internal structure of the air purifier 100 will be described with reference to FIG. The inside of the housing 110 is configured so that air flows from the suction port 120 toward the air outlet 130. Inside the housing 110, a pre-filter 210, a deodorizing filter 220, a dust collecting filter 230, a humidifying unit 240, a blower 250, and a discharge device 260 are provided in this order from the suction port 120 to the air outlet 130.

The pre-filter 210 is for collecting dust (coarse dust) in the passing air. As an example, the pre-filter 210 is formed of a sheet-like mesh such as polypropylene. The pre-filter 210 is attached to the inside of the rear surface 110b of the housing 110 so as to face the suction port 120.

Inside the housing 110, an accommodating portion 110 g for accommodating the deodorizing filter 220 and the dust collecting filter 230 is formed. The accommodating portion 110g is a substantially rectangular parallelepiped recessed space formed at a position facing the suction port 120 of the housing 110 on the rear side of the housing 110. The deodorizing filter 220 and the dust collecting filter 230 are housed side by side in the accommodating portion 110g in order from the upstream side in the air flow direction.

The deodorizing filter 220 is for adsorbing odorous components (for example, acetaldehyde, ammonia, acetic acid, etc.) in the passing air to deodorize the air. As an example, the deodorizing filter 220 has a structure in which a polyester non-woven fabric is attached to a rectangular frame, activated carbon is uniformly dispersed and arranged on the rectangular frame, and the polyester non-woven fabric is covered on the activated carbon.

The dust collection filter 230 is for collecting dust in the passing air, specifically, fine dust and fine particles such as PM2.5 having a particle size smaller than a predetermined particle size (for example, 3 μm). Is. As an example, the dust collecting filter 230 is made of a HEPA (High Effective Particulate Air) filter, and has a structure in which a frame material is welded by hot melt so as to cover the filter medium.

The humidification unit 240 is for humidifying the passing air. The humidifying unit 240 is arranged in front of the accommodating portion 110 g, more specifically in front of the dust collecting filter 230. The humidification unit 240 is composed of a tray 240a for storing water and a humidification filter 240b arranged by immersing the lower part in the water in the tray 240a. The tray 240a is configured to be able to supply water from the water supply tank 140. The humidifying unit 240 vaporizes the water contained in the humidifying filter 240b by blowing air onto the humidifying filter 240b to humidify the air.

The blower 250 is arranged in front of the humidifying unit 240, that is, on the front bottom side of the housing 110. The blower 250 has a fan 250a and a fan motor (not shown) for driving the fan 250a. The fan 250a is formed by a centrifugal fan such as a sirocco fan, and is configured to suck air in the axial direction (front-back direction) and send out air in the circumferential direction (upward).

A partition wall 110h is arranged between the humidifying unit 240 and the blower 250. The partition wall 110h is arranged so as to partition the internal space of the housing 110 back and forth, and the upper portion thereof extends so as to incline rearward. A humidifying unit 240, a dust collecting filter 230, a deodorizing filter 220, and a pre-filter 210 are arranged behind the partition wall 110h. A blower 250 is arranged in front of the partition wall 110h. A plurality of ventilation holes 110i leading to the blower 250 are formed in the partition wall 110h. As a result, the air taken into the housing 110 through the suction port 120 is sucked into the blower 250 through the ventilation hole 110i.

Inside the housing 110, an air passage 200 that communicates from the fan 250a to the air outlet 130 is formed. The air passage 200 includes a first air passage 200a on the upstream side and a second air passage 200b on the downstream side. The first air passage 200a is composed of a partition wall 110h, a fan case 250b for accommodating the fan 250a, and a duct having a substantially rectangular cross section. The upper portion of the fan case 250b (the portion located above the fan 250a) is formed so as to incline from the front to the rear and extend upward like the partition wall 110h, and is attached so as to surround the front surface of the partition wall 110h. Has been done. As described above, the first air passage 200a is configured so that the inclination direction is diagonally upward to the rear as an example. The first air passage 200a is configured to extend diagonally upward and backward, but the present invention is not limited to this, and the first air passage 200a may be configured to extend at least upward.

A discharge device 260 is provided on the upper wall surface of the fan case 250b. As an example, the discharge device 260 is arranged so that a needle-shaped discharge electrode is exposed in the air passage 200, and an ion is generated by applying a high voltage voltage. The ions generated by the discharge device 260 are blown out from the outlet 130 along with the air flow by the blower 250.

A second air passage 200b is connected to the upper end of the fan case 250b and the partition wall 110h (the end in the air blowing direction). The second air passage 200b connects the first air passage 200a and the outlet 130. The housing 110 has an upper cover (not shown) in which the air outlet 130, the second air passage 200b, and the outer peripheral surface of the upper portion of the housing 110 are integrally formed, and the second air passage 200b has a second air passage 200b. It is configured as part of the top cover.

In the above configuration, by rotating the fan 250a, the air sucked from the suction port 120 passes through the pre-filter 210, the deodorizing filter 220, and the dust collecting filter 230 while advancing forward inside the housing 110. It is purified into odor-free and dust-free air and humidified by the humidifying unit 240. Then, the ions generated by the discharge device 260 are added while advancing diagonally upward from the blower 250, and the air containing the ions is blown out from the outlet 130. More specifically, the air containing ions is blown forward or forward and downward from the first outlet 130a described later, and is blown diagonally upward and backward from the second outlet 130b described later.

The air purifier 100 does not have a function of cleaning the pre-filter 210, but is not limited to this. For example, a cleaning device is arranged between the pre-filter 210 and the deodorizing filter 220 to clean the pre-filter. It may be configured to do so. Further, the air purifier 100 has a structure for humidifying air and a structure for generating ions, but the present invention is not limited to this, and for example, it may have only a function of capturing dust in a room. It may have a function of dehumidifying air.

The outlet 130 and the second air passage 200b will be described with reference to FIG. FIG. 6 is a partially enlarged cross-sectional view showing the air outlet 130 of the air purifier 100.

An outlet 130 is formed on the upper surface 110e of the housing 110. As an example, the air outlet 130 is formed over the entire upper surface 110e, and is formed in a substantially rectangular shape elongated in the left-right direction. Therefore, the upper surface 110e is composed of an edge portion constituting the outlet 130. The outlet 130 is formed over the entire upper surface 110e, but is not limited to this, and may be formed on a part of the upper surface 110e.

The second air passage 200b has a curved surface or an inclined surface inclined with respect to the first air passage 200a. As an example, the wall portion 201 constituting the second air passage 200b is curved so as to spread toward the outlet 130. That is, the second air passage 200b has a wall portion 201 formed as a curved surface. The wall portion 201 is formed so that the opening becomes wider as it approaches the outlet 130. The widening of the opening means that the cross-sectional area when the second air passage 200b is cut in the direction orthogonal to the direction in which the air flows (the inclination direction of the first air passage 200a) becomes large. The wall portion 201 is curved so as to project upward inside the housing 110. In other words, the wall portion 201 is formed in a substantially funnel shape that inclines (curves) inward and downward from the outlet 130.

As described above, the second air passage 200b has a wall portion 201 configured as a curved surface, but is not limited to this, and has, for example, an inclined surface inclined with respect to the first air passage 200a. You may. In this case, the wall portion 201 is formed so as to spread toward the outlet 130. Further, the second air passage 200b may have an inclined surface that is inclined with respect to the vertical direction.

The louver 300 is for switching the direction of the air (wind) blown out from the outlet 130. The louver 300 is configured so that the direction of the air (wind) blown out from the outlet 130 can be changed by rotating the louver 300 by a rotation mechanism 400 (see FIG. 7) described later. The louver 300 is provided with an operation unit 350 for setting various operations of the air purifier 100. The setting of various operations of the air purifier 100 refers to, for example, setting of operation start, operation stop, operation mode selection, air volume, wind direction, etc. of the air purifier 100. That is, the louver 300 also has a function as an operation unit 350. The operation unit 350 includes a touch panel as an example. As described above, the louver 300 is configured to have both the function of changing the direction of the wind and the function of setting various operations of the air purifier 100 as described above, thereby reducing the number of components in terms of design. It can be made into a more stylish design. The setting of various operations by the operation unit 350 is performed by the louver 300, but the present invention is not limited to this, and the setting unit other than the louver 300 may be used.

The louver 300 is provided from the air passage 200 to the air outlet 130. More specifically, the louver 300 is provided so as to project from the second air passage 200b to the outside of the housing 110.

The louver 300 has a base 310 formed in a substantially crescent shape in a lateral view by combining two plate-shaped members formed in a bow shape in the front-rear direction. The front plate-shaped member is composed of a curved surface portion 310a that extends from the air passage 200 toward the air outlet 130 and is curved toward the front side of the housing 110. The rear plate-shaped member includes a back surface portion 310b extending from the air passage 200 toward the air outlet 130, and an upper surface portion 310c curved from the back surface portion 310b and extending toward the front side. The substrate 310 is formed in a hollow shape, and a substrate, a touch panel, or the like constituting the operation unit 350 is housed in the hollow portion. More specifically, a substrate or a touch panel constituting the operation unit 350 is superimposed on the upper surface portion 310c, and the user can operate the upper surface portion 310c to perform various operations of the air purifier 100. it can.

The portion of the base 310 on the base 311 side, that is, the portion located on the inner side of the air passage 200, is arranged so as to cross the inside of the second air passage 200b in the left-right direction and is partitioned in the front-rear direction. Further, the base portion 311 side of the substrate 310 is arranged closer to the front portion in the second air passage 200b. Further, the width in the left-right direction of the base 310 on the base portion 311 side is formed so as to increase in the left-right direction in the second air passage 200b from the lower part to the upper part.

As described above, the second air passage 200b is divided back and forth by the substrate 310. Hereinafter, the air passage located in the front portion of the substrate 310 is referred to as a first branch flow path 200c. The first branch flow path 200c mainly refers to a space surrounded by a portion of the wall portion 201 from the front surface to the side surface and a curved surface portion 310a. That is, a part of the louver 300 (curved surface portion 310a) constitutes the first branch flow path 200c. Hereinafter, the outlet of the first branch flow path 200c will be referred to as the first outlet 130a. The air passage located at the rear of the substrate 310 is referred to as a second branch flow path 200d. The second branch flow path 200d mainly refers to a space surrounded by the back surface portion 310b and the portion of the wall portion 201 from the side surface to the back surface. Hereinafter, the outlet of the second branch flow path 200d will be referred to as a second outlet 130b. By rotating the louver 300 by the rotation mechanism 400 (see FIG. 7) described later, the opening areas of the first outlet 130a and the second outlet 130b are changed, respectively. More specifically, as the opening area of one outlet (for example, the first outlet 130a) increases with the rotation of the louver 300, the opening of the other outlet (for example, the second outlet 130b) becomes larger. It is configured to have a small area.

The tip portion 312 side of the base 310, that is, the portion located outside (above) the outlet 130 is formed so as to face the front (front) side of the housing 110. Further, the substrate 310 is formed so that the distance (thickness) between the curved surface portion 310a and the upper surface portion 310c facing each other becomes smaller toward the tip end portion 312 side.

The base 310 extends from the air passage 200 toward the air outlet 130 and is configured to be curved toward the front side of the housing 110, so that the tip portion 312 of the base 310 is the front side constituting the air outlet 130. It is configured to be located substantially above the edge 130c. In the above configuration, the first outlet 130a can blow out the air flowing in the first branch flow path 200c forward by forming an opening on the front side. Further, the substrate 310 extends from the air passage 200 toward the air outlet 130 and has a curved surface portion 310a curved on the front side of the housing 110 so that air can be efficiently sent out to the first air outlet 130a. Can be done. That is, the curved surface portion 310a functions as a guide surface for guiding the air flowing through the first branch flow path 200c to the first outlet 130a.

Further, the air flowing through the second branch flow path 200d is blown out from the second outlet 130b mainly diagonally backward and upward along a direction substantially the same as the inclination direction of the first air passage 200a. At this time, the substrate 310 is arranged closer to the front in the second air passage 200b, and the back surface 310b is formed so as to extend upward (substantially directly above) from the base 311 side, so that the second branch is formed. It does not easily interfere with the air flowing in the flow path 200d. From the above, the air purifier 100 can blow air not only upward but also forward from one air outlet 130 formed on the upper surface 110e.

Hereinafter, the wall portion 201 facing the curved surface portion 310a is also referred to as a first wall portion 201a, and the wall portion 201 facing the back surface portion 310b is also referred to as a second wall portion 201b. The first wall portion 201a refers to a portion that curves inward and downward from the front side edge portion 130c of the outlet 130. The second wall portion 201b refers to a portion that curves inward and downward from the back side edge portion 130d of the outlet 130.

The first wall portion 201a is formed so that the distance between the first wall portion 201a and the curved surface portion 310a is substantially the same. That is, the first wall portion 201a has a curved surface substantially the same as the curved surface portion 310a. As a result, the air flowing through the first branch flow path 200c can be smoothly guided to the first outlet 130a by the first wall portion 201a and the curved surface portion 310a, and the ventilation efficiency can be improved. Further, since a part of the louver 300 (curved surface portion 310a) constitutes the first branch flow path 200c, the direction of the wind can be easily switched only by rotating the louver 300.

In the above configuration, the wall portion 201 is curved so as to spread toward the outlet 130 over the circumferential direction of the outlet 130, but the present invention is not limited to this, and only the first wall portion 201a is curved so as to spread toward the outlet 130. It may be curved so as to spread toward.

Further, the wall portion 201 is formed so that the tangential direction approaches the horizontal direction as it approaches the outlet 130, for example. This makes it possible to smoothly guide the air flowing along the wall portion 201 forward. The wall portion 201 is configured so that the tangential direction approaches the horizontal direction over the circumferential direction. However, the present invention is not limited to this, and only the first wall portion 201a has a tangential direction as it approaches the outlet 130. It may be formed so as to approach the horizontal direction.

Further, the outlet 130 is configured such that, for example, the back side edge portion 130d is higher than the front side edge portion 130c. As a result, the air flowing through the second branch flow path 200d can stably send out the air toward the rear diagonally upward.

As shown in FIGS. 6 and 7 (a), a pair of base 310s are formed so as to project from the curved surface portion 310a toward the wall portion 201 (first wall portion 201a) side (front and lower). A side wall 320 is provided. The pair of side walls 320 are provided at both ends of the substrate 310 in the left-right direction, and are connected to the curved surface portion 310a by a smooth curved surface.

The pair of side walls 320 can prevent the air flowing into the first branch flow path 200c from flowing sideways. Further, in the second posture of the louver 300 described later, when the distance between the tip portion 312 of the substrate 310 and the front side edge portion 130c of the outlet 130 is narrowed and the flow velocity of the blown air is increased, It is possible to suppress the flow of air from the first outlet 130a to the side (for example, to the left or to the right).

In the air passage 200, for example, a damper 330 for changing the flow rate balance of the air flowing through the first branch flow path 200c and the second branch flow path 200d is provided. The damper 330 is formed in a thin plate shape, and the lower portion is rotatably supported in the front-rear direction with the rotation shaft 330a provided at the upper portion as a fulcrum. By rotating the damper 330, the air flow rate balance between the first branch flow path 200c and the second branch flow path 200d is changed.

The damper 330 is provided, for example, around the upper end of the first air passage 200a. The rotation shaft 330a is arranged below the base portion 311 of the base 310, and the damper 330 is configured to be changeable to three positions. More specifically, as the inclination direction of the damper 330 advances toward the first position P1 in which the inclination direction of the first air passage 200a is the same as the inclination direction (diagonally upward behind) and the upstream side (downward) of the air passage 200. , The second position P2 in which the damper 330 is arranged so as to be inclined rearward, and the third position P3 in which the damper 330 abuts on the front wall surface forming the first air passage 200a and is locked. It is composed. At the third position P3, the damper 330 is configured to come into contact with and locked to the locking portion 330b formed on the front wall surface forming the first air passage 200a.

The damper 330 is configured to send a predetermined amount of air to the first branch flow path 200c and the second branch flow path 200d at the first position P1. At the second position P2, the damper 330 increases the flow rate of air flowing through the first branch flow path 200c as compared with the first position P1. The damper 330 is configured so that air does not substantially flow into the first branch flow path 200c at the third position P3. That is, it is configured to allow most of the air to flow through the second branch flow path 200d. As described above, by arranging the damper 330 inside the air passage 200 and configuring the damper 330 so that it can be changed to three positions (three postures), the first branch flow path 200c and the second branch flow path 200d can be formed. The flow balance of the flowing air is being changed.

The air passage 200 is provided with, for example, a first rectifying member 340a for rectifying the air entering the first branch flow path 200c and a second rectifying member 340b for rectifying the air entering the second branch flow path 200d. The first rectifying member 340a is attached to the first wall portion 201a side. The first straightening vane 340a is a grid-like member formed by combining a plurality of straightening vanes so that air can be sent upward (substantially directly above). The second rectifying member 340b is attached to the second wall portion 201b side. The second straightening vane 340b is a grid-like member formed by combining a plurality of straightening vanes so that air can be sent out diagonally upward and backward. The first rectifying member 340a and the second rectifying member 340b are connected at the base portion 311 of the base 310.

The rotation mechanism 400 of the louver 300 will be described with reference to FIG. 7. FIG. 7A is a perspective view showing the rotation mechanism 400 of the air purifier 100. FIG. 7B is an exploded perspective view showing the rotation mechanism 400 of the air purifier 100. FIG. 7C is a partially enlarged cross-sectional view showing the rotation mechanism 400 of the air purifier 100. The louver 300 changes the direction of the air (wind) blown out mainly from the first outlet 130a by rotating the louver 300 by the rotation mechanism 400. The rotation mechanism 400 includes a rotation arm 410, a mounting plate 420, a spring 430, a spring cover 440, and an arm retainer 450.

As shown in FIG. 7A, the rotation mechanism 400 has a pair of rotation arms 410 that rotate the substrate 310. The rotating arm 410 is made of a hollow tubular member and is curved so as to project downward. One end of the rotating arm 410 is rotatably supported in the space behind the first wall portion 201a. The space behind the first wall portion 201a refers to a space surrounded by the first wall portion 201a and the outer peripheral surface (for example, the front surface 110a) of the housing 110. The other end of the rotating arm 410 penetrates the bottom of the base 310 and is fixed to an internal wall surface (not shown). As a result, the louver 300 is configured so that the other end side can rotate in the front-rear direction with one end of the rotating arm 410 as a fulcrum. The rotating arm 410 is attached to each end of the substrate 310 in the left-right direction by the same mechanism.

As shown in FIGS. 7 (b) and 7 (c), one end of the rotating arm 410 is rotatably supported by a mounting plate 420 provided on the back side of the first wall portion 201a. The mounting plate 420 is a plate-shaped member provided so as to project from the first wall portion 201a toward the back side (front). The rotating mechanism 400 has a spring 430 that urges one end of the rotating arm 410 to the mounting plate 420 from the side. A spring cover 440 that abuts on the rotating arm 410 and locks the rotating arm 410 is attached to one end of the spring 430. The spring cover 440 is formed in a cylindrical shape and is supported so as to be rotatable relative to a recess 410a provided at one end of the rotating arm 410. An arm retainer 450 fastened to the mounting plate 420 is attached to the other end of the spring 430. That is, the rotating arm 410 is locked between the mounting plate 420 and the arm retainer 450 by being urged to the mounting plate 420 by the spring cover 440 to which the urging force of the spring 430 is applied. The urging force of the spring 430 refers to an urging force capable of locking the louver 300 in a desired posture.

In the above configuration, when the user applies a force in the direction of pushing or pulling out the louver 300 (base 310), the rotating arm 410 is rotated against the urging force of the spring 430, and the louver 300 is placed in a desired posture. Can be rotated to. Then, the louver 300 can be locked in a desired posture by the urging force of the spring 430. Further, since the rotating arm 410 is configured to be hollow, the lead wire connected to the substrate constituting the operation unit 350 and the substrate of the irradiation unit 600 described later is passed through the inside of the rotating arm 410 to the outside of the air passage 200. I can guide you.

The rotating posture of the louver 300 will be described with reference to FIG. FIG. 8A is a side sectional view showing the first posture of the louver 300. FIG. 8B is a side sectional view showing the second posture of the louver 300.

As shown in FIGS. 6 and 8A, the first posture of the louver 300 refers to a posture in which the tip portion 312 of the base 310 is located substantially above the front side edge portion 130c of the outlet 130. Then, the curved surface portion 310a of the louver 300 and the first wall portion 201a are arranged so that the distance between them is substantially the same. As a result, the air flowing through the first branch flow path 200c is configured to be efficiently blown forward from the first outlet 130a. Here, the tip portion 312 of the curved surface portion 310a is located inside the front side edge portion 130c (housing 110) of the air outlet 130.

As shown in FIG. 8B, the second posture of the louver 300 is a posture in which the louver 300 is rotated so as to be pulled forward from the first posture. More specifically, the second posture is a posture in which the tip portion 312 of the louver 300 (curved surface portion 310a) is positioned in the front direction (front) of the housing 110. The second posture is a posture in which the tip portion 312 of the curved surface portion 310a faces diagonally downward. The tip portion 312 of the curved surface portion 310a is located (protruding) outside the front side edge portion 130c (housing 110) of the air outlet 130. As a result, the air flowing through the first branch flow path 200c is configured to be blown forward and downward from the first outlet 130a. Here, the distance between the curved surface portion 310a and the first wall portion 201a is configured to become narrower toward the tip portion 312.

As described above, the rotation mechanism 400 is configured to be able to rotate the louver 300 from the first posture to the second posture. As a result, in the room where the air purifier 100 is arranged, when it is desired to send air forward, the first posture is used, and when it is desired to send air toward the bottom of the room, the second posture is used. The wind direction can be changed according to. Further, by configuring the rotating mechanism 400 to be accommodated in the space behind the first wall portion 201a, the rotating mechanism 400 can be arranged without difficulty using the existing space. Further, since the operation unit 350 is composed of a touch panel, various operations can be set without pushing the operation unit 350. Therefore, even if the louver 300 is configured to be rotatable, various operations can be set without inadvertently rotating the louver 300. The louver 300 is configured to be rotated manually, but the present invention is not limited to this, and the louver 300 may be configured to be rotated by using a motor or the like.

As shown in FIG. 8, above the first rectifying member 340a, wind is blown into an air passage (first branch flow path 200c) composed of a curved surface portion 310a and a wall portion 201 (first wall portion 201a). A guide portion 500 for guiding is provided in the air passage 200. The guide portion 500 is attached to the first wall portion 201a, the first rectifying member 340a, and the like. The guide portion 500 is a hollow duct-shaped member formed in a fan shape in a side view. The guide portion 500 is configured to take in air from an opening (not shown) formed in the lower portion and to expel air from an opening (not shown) formed in the front portion.

The guide portion 500 has a sliding surface 500a that slidably supports the base 310 in response to the rotation of the louver 300. The sliding surface 500a is composed of an outer peripheral surface of the guide portion 500, more specifically, a surface forming an arc portion in a side view. The lower portion of the sliding surface 500a and the curved surface portion 310a of the louver 300 is formed along a rotation locus centered on the rotation fulcrum of the louver 300. In the first posture of the louver 300, the sliding surface 500a and the lower portion of the curved surface portion 310a of the louver 300 are in close contact with each other. When the louver 300 is rotated forward from the first posture, the curved surface portion 310a of the louver 300 shifts to the second posture while sliding along the sliding surface 500a. In the second posture of the louver 300, the sliding surface 500a and the lower portion of the curved surface portion 310a of the louver 300 are partially in close contact with each other.

As shown in FIG. 8, the curved surface portion 310a of the louver 300 is provided with, for example, a locking portion 310d for restricting backward rotation. The locking portion 310d is formed in the middle of the curved surface portion 310a, and is composed of a stepped portion that locks the upper portion of the guide portion 500. As a result, the louver 300 is regulated so as not to rotate backward from the first posture. Further, at the lower end of the sliding surface 500a, a support portion 500b projecting rearward is formed so as to support the base portion 311 of the louver 300. As a result, the louver 300 can be stably supported in the first posture.

As described above, the sliding surface 500a is formed along the rotation locus of the louver 300, so that the louver 300 can be rotated while being stably supported. Further, even if the louver 300 rotates forward, air can be reliably taken into the first branch flow path 200c through the guide portion 500.

The irradiation unit 600 that irradiates the air passage 200 with light will be described with reference to FIG. In FIG. 8A, the irradiation region of the irradiation unit 600 in the first posture of the louver 300 is schematically represented as a region surrounded by straight lines indicated by reference numerals L1 and L2 (region indicated by diagonal lines). In FIG. 8B, the irradiation region of the irradiation unit 600 in the second posture of the louver 300 is schematically represented as a region surrounded by straight lines (regions indicated by diagonal lines) indicated by reference numerals L3 and L4.

The air purifier 100 has an irradiation unit 600 that irradiates a curved surface provided on the downstream side of the air passage 200 with light. That is, the irradiation unit 600 is configured to irradiate the wall portion 201 formed as the curved surface of the second air passage 200b. Further, as an example, the irradiation unit 600 irradiates light in the back direction (rear) of the housing 110. The air purifier 100 is configured to irradiate the wall portion 201 formed as a curved surface with light, but is not limited to this, for example, as a configuration for irradiating the wall portion 201 formed as an inclined surface with light. May be good.

The irradiation unit 600 is provided on the louver 300 that changes the wind direction, as an example. More specifically, the irradiation unit 600 is provided on the back surface side (back surface portion 310b) of the louver 300. Further, the irradiation unit 600 is arranged below the outlet 130.

The irradiation unit 600 includes, for example, an LED light source (not shown) and a lens (not shown) that bends the light of the LED light source. The LED light source is arranged inside the substrate 310. The lens is arranged inside the substrate 310 on the irradiation side of the light source so as to face the light source. The lens has an optical characteristic of emitting light from an LED light source in a predetermined direction (for example, toward the back surface of the housing 110). The portion of the back surface portion 310b of the substrate 310 that intersects the irradiation direction from the LED light source is formed as a light-transmitting region 600a. The translucent region 600a is formed by molding a translucent glass or resin. A lens is used to emit the light of the LED light source in a predetermined direction, but the present invention is not limited to this, and for example, the plate-shaped member (cover member) constituting the translucent region 600a is formed into a lens shape. It may be processed to emit the light of the LED light source in a predetermined direction.

In the above configuration, the light emitted from the irradiation unit 600 is applied to the wall portion 201 formed as a curved surface via the light transmitting region 600a, more specifically, to the second wall portion 201b side. In this way, the irradiation surface of the light emitted from the irradiation unit 600 is set as a curved surface, and the light is reflected (scattered) on the curved surface to illuminate the vicinity of the outlet 130. Further, by bending the second wall portion 201b so as to spread toward the outlet 130, the user can easily see the light reflected (scattered) by the second wall portion 201b. Further, by bending the second wall portion 201b so that the tangential direction approaches the horizontal direction as it approaches the outlet 130, the light radiated to the end portion of the outlet 130 is reflected (scattered) upward. It becomes easy to be done. Further, by forming the wall portion 201 into a curved surface when viewed from above, the light radiated to the wall portion 201 is easily reflected (scattered) in all directions (front and back, left and right). As a result, the light emitted from the irradiation unit 600 is reduced from being directly exposed to the user's eyes, that is, the light reflected (scattered) by the second wall portion 201b is reduced by the user while reducing the user's feeling of dazzling. Can be easily recognized. Therefore, it is possible to give a soft impression to the user and suppress the deterioration of the atmosphere of the room. Further, the irradiation unit 600 is provided below the outlet 130. Further, an irradiation unit 600 is provided on the back surface side of the louver 300. This makes it possible to reduce the direct exposure of the light emitted from the irradiation unit 600 to the eyes of the user. Further, the outlet 130 is configured so that the back side edge portion 130d is higher than the front side edge portion 130c, so that the light distribution range on the back side side can be widened and the user's visibility is improved. Light.

The irradiation region of the irradiation unit 600 in the first posture and the second posture of the louver 300 will be described with reference to FIGS. 8 (a) and 8 (b). The irradiation unit 600 is configured so that the irradiation region includes at least the second wall portion 201b regardless of the posture of the louver 300. As shown in FIG. 8A, in the first posture of the louver 300, the irradiation region of the irradiation unit 600 is mainly configured to be the second wall portion 201b. That is, in the first posture of the louver 300, the irradiation unit 600 is configured to irradiate the second wall portion 201b with light. As shown in FIG. 8B, in the second posture of the louver 300, the irradiation range of the irradiation unit 600 includes at least the second wall portion 201b. More specifically, the optical axis (not shown) of the irradiation unit 600 is set to be near the end of the second wall portion 201b on the outlet 130 side, that is, the vicinity of the back side edge portion 130d of the outlet 130. It is configured. As a result, the irradiation unit 600 can better illuminate the outlet 130 side. Further, in the second posture of the louver 300, the irradiation unit 600 uses the irradiation unit 600 to cover the wall surface W in the room located above the air outlet 130, for example, behind the housing 110, in addition to the second wall portion 201b. Can illuminate.

As described above, by configuring the second wall portion 201b to irradiate at least the second wall portion 201b regardless of the direction in which the air is blown out (rotational posture of the louver 300), the user feels less dazzling and the user feels dazzling. Can give the impression of soft light. Further, by changing the irradiation location by the irradiation unit 600 according to the direction of blowing air (rotational posture of the louver 300), the user can intuitively grasp the direction of blowing air (wind). Become. In the second posture of the louver 300, the irradiation unit 600 is configured to illuminate the outlet 130 side of the first posture of the louver 300, but the present invention is not limited to this, regardless of the rotational posture of the louver 300. Instead, it may be configured to illuminate the same portion of the second wall portion 201b.

In the following, the irradiation unit 600 will also be referred to as a first light emitting unit 600. Further, as shown in FIGS. 1, 2 and 5, a second light emitting unit 610 that irradiates at least a second light on the floor surface S on which the air purifier 100 is installed is provided. As an example, the second light emitting unit 610 is provided on the lower side of the front surface 110a of the housing 110 over the left and right sides. Since the second light emitting unit 610 has the same configuration as the first light emitting unit 600, the description thereof will be omitted. The second light emitting unit 610 is arranged so that, for example, the irradiation direction is forward (or forward and downward). As described above, by arranging the second light emitting unit 610 so as to irradiate the floor surface S, the light emitted from the second light emitting unit 610 reflects the light on the floor surface S, thereby causing the floor. It can illuminate the vicinity of the surface S.

FIG. 9 is a block diagram showing a hardware configuration of the control unit 700 of the air purifier 100. The air purifier 100 mainly includes a fan 250a, a discharge device 260, an operation unit 350, a first light emitting unit 600, a second light emitting unit 610, a first detection unit, and a second detection unit. A control unit 700, a storage unit 710, a notification unit 720, and a communication unit 730 are provided.

The control unit 700 includes a fan 250a, a discharge device 260, an operation unit 350, a first light emitting unit 600, a second light emitting unit 610, a first detection unit (not shown), and a second light emitting unit 700. It is connected to a detection unit (not shown), a storage unit 710, a notification unit 720, and a communication unit 730. The control unit 700 is composed of, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 700 controls each unit of the air purifier 100 by reading and executing a program stored in the storage unit 710. The storage unit 710 is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and stores a program executed by the control unit 700 and various parameters used by the control unit 700.

The first detection unit is for detecting the state of air on the downstream side of the filter unit, in other words, for detecting the state of air blown out from the outlet 130. That is, the first detection unit detects the state of air on the outlet 130 side. The filter unit refers to one including at least any one of the deodorizing filter 220, the dust collecting filter 230, and the humidifying filter 240b. As the first detection unit, for example, a first dust sensor 620 that detects the dust concentration in the air on the outlet 130 side, a first odor sensor 630 that detects the odor concentration in the air on the outlet 130 side, and the like. A first humidity sensor 640 that detects the humidity of the air on the outlet 130 side can be mentioned. A sensor having at least one of a first dust sensor 620 and a first odor sensor 630 is also referred to as a first dirt sensor. The first pollution sensor detects the pollution state of air on the downstream side of the filter unit. The first humidity sensor 640 detects the humidity of the air on the downstream side of the filter unit.

The first dust sensor 620 is provided on the downstream side of the filter unit in the blowing direction, for example, in the vicinity of the air outlet 130. The first dust sensor 620 detects the concentration of dust contained in the air on the downstream side of the filter unit. More specifically, the concentration of dust contained in the air after passing through the filter unit, for example, the air blown out from the outlet 130 is detected. As an example, the first dust sensor 620 includes an optical sensor having a light emitting element and a light receiving element, and detects the concentration of dust in the air based on the output pulse width output from the light receiving element.

The first odor sensor 630 is provided on the downstream side of the filter unit in the blowing direction, for example, in the vicinity of the air outlet 130. The first odor sensor 630 detects the concentration of the odor component contained in the air on the downstream side of the filter unit. More specifically, it is possible to detect the concentration of an odor component contained in the air after passing through the filter unit, for example, the air blown out from the outlet 130. The first odor sensor 630 includes, for example, a circuit having a metal oxide semiconductor, and detects the odor component based on the change in the resistance value of the metal oxide semiconductor when the odor component is adsorbed.

The first humidity sensor 640 is provided on the downstream side of the filter unit in the blowing direction, for example, in the vicinity of the outlet 130. The first humidity sensor 640 detects the humidity of the air on the downstream side of the filter unit. More specifically, it is possible to detect the humidity of the air after passing through the filter unit, for example, the air blown out from the outlet 130. As the first humidity sensor 640, for example, a capacitance type or electric resistance type humidity sensor using a polymer moisture-sensitive material can be used.

The second detection unit is for detecting the state of air on the upstream side of the filter unit, in other words, for detecting the state of air sucked from the suction port 120. That is, the second detection unit is for detecting the state of air on the suction port 120 side. As the second detection unit, for example, a second dust sensor 650 that detects the dust concentration in the air on the suction port 120 side, and a second odor sensor 660 that detects the odor component concentration in the air on the suction port 120 side. A second humidity sensor 670 or the like that detects the humidity of the air on the suction port 120 side can be mentioned. A sensor having at least one of a second dust sensor 650 and a second odor sensor 660 is also referred to as a second dirt sensor. The second pollution sensor detects the pollution state of air on the upstream side of the filter unit. The second humidity sensor 670 detects the humidity of the air on the upstream side of the filter unit.

The second dust sensor 650 has the same configuration as the first dust sensor 620, and is provided on the upstream side in the blowing direction of the filter unit, for example, in the vicinity of the suction port 120. The second dust sensor 650 detects the concentration of dust contained in the air on the upstream side of the filter unit. More specifically, the dust concentration in the air before passing through the filter unit, for example, the air sucked from the suction port 120 is detected.

The second odor sensor 660 has the same configuration as the first odor sensor 630, and is provided on the upstream side in the blowing direction of the filter unit, for example, in the vicinity of the suction port 120. The second odor sensor 660 detects the concentration of the odor component contained in the air on the upstream side of the filter unit. More specifically, it is possible to detect the concentration of an odor component contained in the air before passing through the filter unit, for example, the air sucked from the suction port 120.

The second humidity sensor 670 has the same configuration as the first humidity sensor 640, and is provided on the upstream side in the blowing direction of the filter unit, for example, in the vicinity of the suction port 120. The second humidity sensor 670 detects the humidity of the air on the upstream side of the filter unit. More specifically, it is possible to detect the humidity of the air before passing through the filter unit, for example, the air sucked from the suction port 120.

The dust sensor described above may be a sensor that senses not only dust but also pollen and PM2.5 fine particles. Further, the odor sensor may be a sensor that senses not only odor but also gas. Further, the first detection unit and the second detection unit may be configured to be provided in an external device. In this case, the detection value of the first detection unit and the detection value of the second detection unit are set to the communication unit. It is configured to be acquired via 730.

The notification unit 720 is for notifying, for example, an abnormal state of the air purifier 100, which will be described later. The notification unit 720 includes, for example, a speaker (not shown) that outputs sound. When an abnormal state of the device described later is detected, the notification unit 720 notifies the user by outputting a specific sound. The notification unit 720 is not limited to the speaker, and may be, for example, a display unit 170, a display (not shown) that displays characters and images, and the like.

The communication unit 730 is for communicating data with an external device (for example, a server device or the like), and is composed of a communication module such as a wireless LAN, for example. The operation unit 350 receives a command from the user and inputs it to the control unit 700. The control unit 700 includes a fan 250a and a discharge device based on the information acquired via the communication unit 730, the information input by the operation unit 350, and the information detected by the first detection unit and the second detection unit. 260, the first light emitting unit 600 and the second light emitting unit 610 are controlled.

With reference to FIG. 10, the air volume control according to the detection value of the second detection unit by the air purifier 100 will be described. FIG. 10A is a diagram showing the rotation speed control of the fan 250a according to the degree of air pollution on the suction port 120 side. FIG. 10B is a diagram showing the rotation speed control of the fan 250a according to the dry humidity of the air on the suction port 120 side.

As shown in FIG. 10A, the air purifier 100 ranks the degree of contamination into a plurality of stages according to the dust concentration in the air. The dust concentration detected by the second dust sensor 650 is normalized, and is ranked as a degree of dirt in three stages of 0 to 2, for example, according to the dust concentration. The degree of contamination is configured so that the dust concentration increases in the order of 0 to 2. For example, when the degree of dirt is "0", it means that the air is in a generally clean state. When the degree of dirt is "1", it means that the air is a little dirty. When the degree of dirt is "2", it means that the air is in a very dirty state. Not only the second dust sensor 650 but also the first dust sensor 620 is ranked according to the dust concentration in the same manner as described above.

In the above configuration, the degree of air pollution is ranked using only the dust sensor, but the present invention is not limited to this, and for example, air is used only with the odor sensor and as in the case of using the dust sensor. You may rank the degree of pollution of the air, the degree of air pollution ranked based on the detection value of the dust sensor, and the degree of air pollution ranked based on the detection value of the odor sensor. You may rank the degree of air pollution comprehensively from.

With reference to FIG. 10A, a normal air volume control according to the degree of air pollution on the suction port 120 side by the air purifier 100 will be described. The control unit 700 controls the rotation speed of the fan 250a according to, for example, the state of air pollution on the suction port 120 side. When the control unit 700 determines that the air on the suction port 120 side is dirty (for example, the degree of dirtiness is "2"), the control unit 700 increases the rotation speed of the fan 250a and the air on the suction port 120 side is clean (for example). When it is determined that the degree of dirtiness is “0”), the fan 250a is controlled so as to reduce the rotation speed of the fan 250a. As a result, the operation can be performed with an appropriate air volume according to the state of air pollution in the room.

As shown in FIG. 10B, the air purifier 100 ranks the dry humidity into a plurality of stages according to the humidity of the air. The detected value detected by the second humidity sensor 670 is normalized, and for example, it is ranked as dry humidity in three stages of 0 to 2 according to the detected value. The dry humidity is configured so that the humidity decreases in the order of 0 to 2. For example, the case where the dry humidity is "0" means a wet state, that is, a state rich in humidity (a state in which the humidity is appropriate). The case where the dry humidity is "1" is a state in the middle zone between wet and dry, and refers to, for example, a slightly dry state. When the dry humidity is "2", it means dryness, that is, a state of poor humidity. Not only the second humidity sensor 670 but also the first humidity sensor 640 is ranked according to the detected value in the same manner as described above.

With reference to FIG. 10B, normal air volume control according to the dry humidity of the air on the suction port 120 side will be described. Here, it is assumed that the humidification operation is performed. The control unit 700 controls the rotation speed of the fan 250a according to, for example, the humidity of the air on the suction port 120 side. When the control unit 700 determines that the air on the suction port 120 side is dry (for example, dry humidity “2”), the control unit 700 increases the rotation speed of the fan 250a, and the air on the suction port 120 side is moist. (For example, when it is determined that the dry humidity is "0"), the fan is controlled so as to reduce the rotation speed of the fan 250a. As a result, the operation can be performed with an appropriate air volume according to the dryness and humidity of the indoor air.

Hereinafter, the abnormality detection process of the air purifier 100 by the control unit 700 will be described. FIG. 11 is a block diagram showing a functional configuration of the control unit 700 of the air purifier 100. As shown in FIG. 11, the control unit 700 includes an acquisition unit 701, a discrimination unit 702, a comparison determination unit 703, and a drive control unit 704. The air purifier 100 is configured to control the rotation speed of the fan 250a based on the air condition on the air outlet 130 side and notify the abnormal state of the air purifier 100. That is, the control unit 700 is configured to control the rotation speed of the fan 250a and notify the abnormal state of the air purifier based on the detection value of the first detection unit.

The acquisition unit 701 acquires the detection value of the first detection unit. That is, the acquisition unit 701 acquires the detection value of the first dust sensor 620, the detection value of the first odor sensor 630, the detection value of the first humidity sensor 640, and the like.

The determination unit 702 determines to which rank the detection value of the first detection unit acquired by the acquisition unit 701 belongs. For example, when determining the degree of air pollution, the determination unit 702 determines the degree of air pollution on the downstream side (outlet 130 side) of the filter unit from the detected value of the first dust sensor 620. When determining the degree of air pollution, not only the detection value of the first dust sensor 620 but also the detection value of the first odor sensor 630 is used to determine the degree of air pollution on the downstream side of the filter unit. May be good. For example, when determining the dry / humidity of air, the determination unit 702 determines the dry / humidity of air on the downstream side (outlet 130 side) of the filter unit from the detected value of the first humidity sensor 640.

The comparison determination unit 703 compares the rank regarding the state of the air on the outlet 130 side determined by the determination unit 702 with a predetermined predetermined rank (threshold value). For example, when the comparison determination unit 703 determines the degree of air pollution on the outlet 130 side by the determination unit 702, the comparison determination unit 703 compares the degree of air pollution on the outlet 130 side with a predetermined predetermined degree of pollution. .. The predetermined degree of dirt refers to, for example, the case where the air is very dirty (the degree of dirt is "2"). When the comparison determination unit 703 determines that the degree of air pollution on the outlet 130 side is equal to or higher than the predetermined degree of pollution, it detects it as an abnormality of the device. Examples of equipment abnormalities include a state in which the filter part has deteriorated due to aged use, a state in which an odor component adheres to the filter part, and a state in which dust adheres to the filter part due to aged use. ..

Further, for example, when the comparison determination unit 703 determines the dry humidity on the outlet 130 side by the determination unit 702, the comparison determination unit 703 compares the dry humidity on the outlet 130 side with a predetermined dry humidity. When comparing the dry humidity, it is assumed that the air purifier 100 is in the humidifying operation by the humidifying filter 240b (humidifying by the humidifying filter 240b). To detect the humidification operation, for example, the rotation of the humidification filter 240b may be detected, or a command regarding the humidification operation from the control unit 700 may be detected. The predetermined dry humidity refers to, for example, the case where the air is very dry (the dry humidity is "2"). When the comparison determination unit 703 determines that the dry humidity on the outlet 130 side is equal to or higher than a predetermined dry humidity, that is, when it determines that the humidity on the outlet 130 side is low, it detects it as an abnormality of the device. Examples of the abnormality of the device include a state in which the humidifying filter 240b has deteriorated due to aged use, a state in which the water in the water supply tank 140 has run out, and the like.

The drive control unit 704 controls the rotation speed (air volume) of the fan 250a. For example, when the comparison determination unit 703 detects that the device is abnormal, the drive control unit 704 lowers the rotation speed of the fan 250a to be lower than the rotation speed during operation (current). The decrease here also includes stopping the fan 250a. By lowering the rotation speed of the fan 250a, for example, it is possible to detect the air condition outside the machine (indoor) while suppressing sending out the odorous component generated from the deteriorated filter part to the outside (indoor). Can be done. Further, by stopping the fan 250a, for example, it is possible to avoid sending out the odor component generated from the deteriorated filter portion to the outside (indoor) of the machine. For example, when the comparison determination unit 703 detects an abnormality in the device, the drive control unit 704 controls the notification unit 720 so as to notify the user of the abnormality in the device. Thereby, for example, the user can be urged to maintain (clean or replace) the filter unit. If the drive control unit 704 is not detected as an abnormality of the device, the drive control unit 704 returns to the normal control.

As described above, by making it possible to detect the state of air on the outlet 130 side (for example, the degree of dirtiness and dry humidity), it is possible to predict an abnormality of the device. Therefore, when it is detected as an abnormality of the equipment, by lowering the rotation speed of the fan 250a, it is possible to suppress the influence of the operation in the state where the abnormality has occurred in the equipment. The control unit 700 is configured to compare with a predetermined rank when controlling the rotation speed of the fan 250a based on the detection value of the first detection unit. Not limited to the method, the control unit 700 controls the rotation speed of the fan 250a based on the detection value of the first detection unit and the detection value of the second detection unit, and notifies the abnormal state of the air purifier 100. It may be configured as follows.

In this case, the acquisition unit 701 acquires the detection value of the corresponding second detection unit in addition to the detection value of the first detection unit. The acquisition unit 701 acquires, for example, the detection value of the first dust sensor 620 and the detection value of the second dust sensor 650, or the detection value of the first odor sensor 630 and the second odor sensor. The detection value of 660 is acquired, and the detection value of the first humidity sensor 640 and the detection value of the second humidity sensor 670 are acquired.

The determination unit 702 determines to which rank the detection value of the second detection unit belongs in addition to the detection value of the first detection unit. For example, when determining the degree of air pollution, the degree of air pollution on the outlet 130 side is determined from the detected value of the first dust sensor 620, and the air on the suction port 120 side is determined from the detected value of the second dust sensor 650. The degree of dirtiness of is determined. Further, when the determination unit 702 determines the dry humidity, the determination unit 702 determines the dry humidity of the air on the outlet 130 side from the detection value of the first humidity sensor 640, and the suction port 120 is determined from the detection value of the second humidity sensor 670. The dry humidity of the air on the side is determined.

The comparison determination unit 703 compares the detection value of the first detection unit and the detection value of the second detection unit. More specifically, the rank regarding the air condition on the suction port 120 side and the rank regarding the air condition on the outlet 130 side determined by the discriminating unit 702 are compared. The comparison determination unit 703 compares, for example, the degree of air pollution on the suction port 120 side and the degree of air pollution on the outlet 130 side determined by the determination unit 702. Then, when it is determined that the degree of air pollution on the air outlet 130 side is equal to or higher than the degree of air pollution on the suction port 120 side, that is, the air on the air outlet 130 side is as dirty as or more than the air on the suction port 120 side. If so, it is detected as an abnormality of the device.

Further, the comparison determination unit 703 compares, for example, the dry humidity on the suction port 120 side and the dry humidity on the outlet 130 side determined by the determination unit 702. When comparing the dry humidity, it is premised that the air purifier 100 is in the humidifying operation by the humidifying filter 240b. When the comparison determination unit 703 determines that the dry humidity on the outlet 130 side is equal to or higher than the dry humidity on the suction port 120 side, that is, the dry humidity on the outlet 130 side is about the same as the dry humidity on the suction port 120 side. Alternatively, if it is drier than the air on the suction port 120 side, it is detected as an abnormality of the device. When the comparison determination unit 703 detects that the device is abnormal, the drive control unit 704 controls the rotation speed of the fan 250a in the same manner as described above.

As described above, the detection value of the first detection unit (rank based on the air condition on the outlet 130 side) and the detection value of the second detection unit (rank based on the air condition on the suction port 120 side) are compared. By doing so, it is possible to accurately predict an abnormality in the device. Therefore, when it is detected as an abnormality of the equipment, by lowering the rotation speed of the fan 250a, it is possible to suppress the influence of the operation in the state where the abnormality has occurred in the equipment.

A first embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 12 is a flowchart showing a first embodiment of the abnormality detection process by the air purifier 100. The control unit 700 controls the rotation speed of the fan 250a based on the detection value of the first detection unit. Here, only the detection value d1 of the first detection unit (for example, the first dust sensor 620) is used, and the detection value d2 of the second detection unit is not used. Further, it is assumed that the dust collecting operation is started and the detection value d1 of the first detection unit is periodically acquired. Here, as a predetermined degree of dirt, the degree of dirt "2" is set as an example.

The acquisition unit 701 has acquired the detection value d1 of the first dust sensor 620 (step S101). The determination unit 702 determines the degree of air pollution D1 on the outlet 130 side based on the detection value d1 of the first dust sensor 620 (step S102). The comparison determination unit 703 determines whether or not the air pollution degree D1 on the outlet 130 side determined by the discrimination unit 702 is equal to or higher than a predetermined pollution degree (threshold value) (step S103). .. When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is equal to or higher than the predetermined pollution degree (Yes in step S103), the drive control unit 704 determines the rotation speed of the fan 250a. The fan 250a is controlled to lower the fan 250a (step S104), the notification unit 720 notifies the user as an abnormality of the device (step S105), and the abnormality detection process ends. When the comparison determination unit 703 determines that the degree of air pollution on the outlet 130 side is not equal to or higher than the predetermined degree of pollution (No in step S103), the abnormality detection process ends.

A second embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 13 is a flowchart showing a second embodiment of the abnormality detection process by the air purifier 100. The control unit 700 controls the rotation speed of the fan 250a based on the detection value of the first detection unit. Here, only the detection value h1 of the first detection unit (for example, the first humidity sensor 640) is used, and the detection value h2 of the second detection unit is not used. Further, it is assumed that the humidification operation is being performed and the detection value h1 of the first detection unit is periodically acquired. Here, the dry humidity "2" is set as the predetermined dry humidity.

The acquisition unit 701 has acquired the detection value h1 of the first humidity sensor 640 (step S201). The discrimination unit 702 discriminates the dry humidity H1 on the outlet 130 side based on the detection value h1 of the first humidity sensor 640 (step S202). The comparison determination unit 703 determines whether or not the dry humidity H1 on the outlet 130 side determined by the determination unit 702 is equal to or higher than a predetermined dry humidity (threshold value) determined in advance (step S203). When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is equal to or higher than the predetermined dry humidity (Yes in step S203), the drive control unit 704 reduces the rotation speed of the fan 250a. The fan 250a is controlled (step S204), and the notification unit 720 notifies the user as an abnormality of the device (step S205), and the abnormality detection process ends. When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is not equal to or higher than the predetermined dry humidity (No in step S203), the abnormality detection process ends.

A third embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 14 is a flowchart showing a third embodiment of the abnormality detection process by the air purifier 100. The control unit 700 controls the rotation speed of the fan 250a based on the detection value d1 of the first detection unit and the detection value d2 of the second detection unit. Here, the detection value d1 of the first detection unit (for example, the first dust sensor 620) and the detection value d2 of the second detection unit (second dust sensor 650) are used. Further, it is assumed that the dust collecting operation is started and the detection value d1 of the first detection unit and the detection value d2 of the second detection unit are periodically acquired.

The acquisition unit 701 has acquired the detection value d1 of the first dust sensor 620 and the detection value d2 of the second dust sensor 650 (step S301). The determination unit 702 determines the degree of air pollution D1 on the outlet 130 side based on the detection value d1 of the first dust sensor 620, and determines the degree of air pollution D1 on the outlet 130 side based on the detection value d2 of the second dust sensor 650 on the suction port 120 side. The degree of air pollution D2 is determined (step S302). The comparison determination unit 703 determines whether or not the air pollution degree D1 on the outlet 130 side determined by the discrimination unit 702 is equal to or higher than the air pollution degree D2 on the suction port 120 side (step S303). When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is equal to or higher than the air pollution degree D2 on the suction port 120 side (Yes in step S303), the drive control unit 704 determines. The fan 250a is controlled so as to reduce the rotation speed of the fan 250a (step S304), the notification unit 720 notifies the user as an abnormality of the device (step S305), and the abnormality detection process ends. When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is not equal to or higher than the air pollution degree D2 on the suction port 120 side (when No in step S303), the abnormality detection process ends. ..

A fourth embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 15 is a flowchart showing a fourth embodiment of the abnormality detection process by the air purifier 100. Here, the detection value h1 of the first detection unit (for example, the first humidity sensor 640) and the detection value h2 of the second detection unit (second humidity sensor 670) are used. Further, it is assumed that the humidification operation is started and the detection value h1 of the first detection unit and the detection value h2 of the second detection unit are periodically acquired.

The acquisition unit 701 has acquired the detection value h1 of the first humidity sensor 640 and the detection value h2 of the second humidity sensor 670 (step S401). The determination unit 702 determines the dry humidity H1 on the outlet 130 side based on the detection value h1 of the first humidity sensor 640, and the dry humidity on the suction port 120 side based on the detection value h2 of the second humidity sensor 670. H2 is discriminated (step S402). The comparison determination unit 703 determines whether or not the dry humidity H1 on the outlet 130 side determined by the determination unit 702 is equal to or higher than the dry humidity H2 on the suction port 120 side (step S403). When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is equal to or higher than the dry humidity H2 on the suction port 120 side (yes in step S403), the drive control unit 704 rotates the fan 250a. The fan 250a is controlled so as to reduce the number (step S404), the notification unit 720 notifies the user as an abnormality of the device (step S405), and the abnormality detection process ends. When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is not equal to or higher than the dry humidity H2 on the suction port 120 side (when No in step S403), the abnormality detection process ends.

A fifth embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 16 is a flowchart showing a fifth embodiment of the abnormality detection process by the air purifier 100. Here, the detection value d1 of the first detection unit (for example, the first dust sensor 620) and the detection value d2 of the second detection unit (second dust sensor 650) are used. Further, it is assumed that the dust collecting operation is started and the detection value d1 of the first detection unit and the detection value d2 of the second detection unit are periodically acquired.

In the fifth embodiment of the abnormality detection process by the air purifier 100, the comparison determination unit 703 first compares the air pollution degree D1 on the air outlet 130 side with a predetermined predetermined pollution degree (threshold value). Only when it is determined that the threshold value is equal to or higher than a predetermined threshold value, the air pollution degree D1 on the outlet 130 side and the air pollution degree D2 on the suction port 120 side are compared. Here, for example, the degree of dirt "1" is set as a predetermined degree of dirt. Then, when it is determined that the degree of air pollution D1 on the outlet 130 side is equal to or higher than the degree of air pollution D2 on the suction port 120 side, the rotation speed of the fan 250a is controlled to be reduced. Further, when it is determined that the air pollution degree D1 on the outlet 130 side is not equal to or higher than the air pollution degree D2 on the suction port 120 side, the rotation speed of the fan 250a is controlled to be increased. In this way, by first comparing with a predetermined threshold value and then comparing the air pollution degree D1 on the outlet 130 side and the air pollution degree D2 on the suction port 120 side, for example, the air outlet When the air on the 130 side is clean, it can be set not to detect an abnormality in the device. Further, when it is determined that the air pollution degree D1 on the outlet 130 side is not equal to or higher than the air pollution degree D2 on the suction port 120 side, that is, the air on the suction port 120 side is more dirty (normal situation). In), it is assumed that the air on the outlet 130 side is not sufficiently cleaned in the current operation with respect to the state of air pollution in the room. Therefore, by increasing the rotation speed of the fan 250a, The room can be properly cleaned.

The acquisition unit 701 has acquired the detection value d1 of the first dust sensor 620 and the detection value d2 of the second dust sensor 650 (step S501). The determination unit 702 determines the degree of air pollution D1 on the outlet 130 side based on the detection value d1 of the first dust sensor 620, and determines the degree of air pollution D1 on the outlet 130 side based on the detection value d2 of the second dust sensor 650 on the suction port 120 side. The degree of air pollution D2 is determined (step S502). The comparison determination unit 703 determines whether or not the air pollution degree D1 on the air outlet 130 side determined by the discrimination unit 702 is equal to or higher than a predetermined air pollution degree (threshold value) (step). S503). When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is equal to or higher than a predetermined air pollution degree (Yes in step S503), the comparison determination unit 703 determines. Further, it is determined whether or not the degree of air pollution D1 on the outlet 130 side is equal to or higher than the degree of air pollution D2 on the suction port 120 side (step S504). When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is not equal to or higher than a predetermined air pollution degree (No in step S503), the abnormality detection process ends. .. When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is equal to or higher than the air pollution degree D2 on the suction port 120 side (Yes in step S504), the drive control unit 704 is a fan. The rotation speed of 250a is controlled to be reduced (step S505), the notification unit 720 notifies the user as an abnormality of the device (step S505), and the abnormality detection process ends. When the comparison determination unit 703 determines that the air pollution degree D1 on the outlet 130 side is not equal to or higher than the air pollution degree D2 on the suction port 120 side (No in step S504), the drive control unit 704 uses the fan 250a. The number of rotations of the above is controlled to be increased by a predetermined amount (step S507), and the abnormality detection process is completed.

A sixth embodiment of the abnormality detection process by the air purifier 100 will be described with reference to FIG. FIG. 17 is a flowchart showing a sixth embodiment of the abnormality detection process by the air purifier 100. Here, the detection value of the first detection unit (for example, the first humidity sensor 640) and the second detection unit (second humidity sensor 670) are used. Further, it is assumed that the humidification operation is started and the detection value h1 of the first detection unit and the detection value h2 of the second detection unit are periodically acquired.

In the sixth embodiment of the abnormality detection process by the air purifier 100, the comparison determination unit 703 first compares the dry humidity H1 on the outlet 130 side with a predetermined dry humidity (threshold value), and determines a predetermined value. Only when it is determined that the humidity is equal to or higher than the dry humidity, the dry humidity H1 of the air on the outlet 130 side and the dry humidity H2 on the suction port 120 side are compared. Here, for example, the dry humidity "1" is set as the predetermined dry humidity. Then, when it is determined that the dry humidity H1 on the outlet 130 side is equal to or higher than the dry humidity H2 on the suction port 120 side, the rotation speed of the fan 250a is controlled to be reduced. Further, when it is determined that the dry humidity H1 on the outlet 130 side is not equal to or higher than the dry humidity H2 on the suction port 120 side, the rotation speed of the fan 250a is controlled to increase. In this way, first, after comparing with a predetermined dry humidity, the dry humidity H1 on the outlet 130 side and the dry humidity H2 on the suction port 120 side are compared. If the air is moist, that is, if the air is properly humidified, it can be set not to detect anomalies in the equipment. Further, when it is determined that the dry humidity H1 on the outlet 130 side is not equal to or higher than the dry humidity H2 on the suction port 120 side, that is, in a situation where the air on the outlet 130 side is humidified (normal situation). In the current operation, it is assumed that the air on the outlet 130 side is not sufficiently humidified, so that the room can be appropriately humidified by increasing the rotation speed of the fan 250a.

The acquisition unit 701 has acquired the detection value h1 of the first humidity sensor 640 and the detection value h2 of the second humidity sensor 670 (step S601). The determination unit 702 determines the dry humidity H1 on the outlet 130 side based on the detection value h1 of the first humidity sensor 640, and the dry humidity on the suction port 120 side based on the detection value h2 of the second humidity sensor 670. H2 is discriminated (step S602). The comparison determination unit 703 determines whether or not the dry humidity H1 on the outlet 130 side determined by the determination unit 702 is equal to or higher than a predetermined dry humidity (threshold value) determined in advance (step S603). When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is equal to or higher than a predetermined dry humidity (Yes in step S603), the comparison determination unit 703 further determines the air outlet. It is determined whether or not the dry humidity H1 on the 130 side is equal to or higher than the dry humidity H2 on the suction port 120 side (step S604). When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is not equal to or higher than a predetermined dry humidity (No in step S503), the abnormality detection process ends. When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is equal to or higher than the dry humidity H2 on the suction port 120 side (Yes in step S604), the drive control unit 704 has the rotation speed of the fan 250a. (Step S605), the notification unit 720 notifies the user as an abnormality of the device (step S605), and the abnormality detection process ends. When the comparison determination unit 703 determines that the dry humidity H1 on the outlet 130 side is not equal to or higher than the dry humidity H2 on the suction port 120 side (No in step S604), the drive control unit 704 determines the rotation speed of the fan 250a. The abnormality detection process is completed by controlling the increase by a predetermined amount (step S607).

In the above configuration, when detecting an abnormality in the device, the control unit 700 uses the degree of dirt and dry humidity ranked according to the detection value by the detection unit (for example, a dust sensor, an odor sensor, or a humidity sensor). However, the present invention is not limited to this, and the detection value of the detection unit may be used as it is.

The first detection unit is not limited to the sensor described above, and may be configured to detect the cumulative operating time of the filter unit, for example. For example, the cumulative operating time of the humidifying filter 240b is detected by the humidifying operation time measured by a timer or the like. Further, the cumulative operating time of the deodorizing filter 220 and the dust collecting filter 230 is detected by the time of the dust collecting operation measured by a timer or the like. The cumulative operating time is reset by, for example, a reset button pressed during maintenance of the deodorizing filter 220, the dust collecting filter 230, and the humidifying filter 240b.

When a configuration for detecting the cumulative operating time of the filter unit is adopted as the first detection unit, the control unit 700 compares the cumulative operating time with a predetermined predetermined value, and the cumulative operating time is compared. When it exceeds a predetermined value, it may be detected as an abnormality of the device. When the control unit 700 detects that the device is abnormal, the rotation speed of the fan 250a is reduced, or the display unit 170, the light emitting unit (first light emitting unit 600, the second light emitting unit 610, etc.) and the notification unit 720 are displayed. It may be used to notify the user of an abnormality in the device. For example, when the cumulative operating time of the humidifying unit 240 exceeds 480 hours, the first light emitting unit 600 emits light in yellow, and when the cumulative operating time exceeds 720 hours, the first light emitting unit 600 turns red. When the cumulative operating time exceeds 960 hours, the rotation speed of the fan 250a may be reduced. The decrease here also includes stopping the fan 250a.

Hereinafter, the light emitting patterns of the first light emitting unit 600 and the second light emitting unit 610 will be described with reference to FIGS. 18 to 21. The control unit 700 controls the light emission of the first light emitting unit 600 and the second light emitting unit 610. The control unit 700 causes the first light emitting unit 600 and the second light emitting unit 610 to emit light in conjunction with each other according to the state of the air flowing through the air purifier 100.

The first light emitting unit 600 is for representing the state of the air blown out from the air outlet 130. The first light emitting unit 600 is, for example, composed of a blue LED light source. The first light emitting unit 600 is composed of a blue LED light source, but the configuration is not limited to this, and the same configuration as that of the second light emitting unit 610 may be used.

The second light emitting unit 610 is for representing the state of the air sucked from the suction port 120. The second light emitting unit 610 is configured to include LED light sources of at least two different colors, and as an example, includes LED light sources of three colors of red, yellow, and blue.

A first embodiment of a light emitting pattern of the first light emitting unit 600 and the second light emitting unit 610 by the control unit 700 will be described with reference to FIGS. 18 and 19. The storage unit 710 stores a plurality of light emission patterns according to the air condition in the storage unit 710. The elements constituting the light emission pattern include the color of light (also referred to as light emission color) and the presence or absence of blinking. When the light emitting unit is blinked, the blinking interval (cycle), the ratio of the lighting time to the extinguishing time, and the like may also be factors constituting the light emitting pattern.

FIG. 18 is a diagram showing a first embodiment of a light emitting pattern of the first light emitting unit 600. FIG. 18A is a diagram showing a light emitting pattern of the first light emitting unit 600. FIG. 18B is a diagram showing the light emission timing of the first light emitting unit 600.

The control unit 700 changes the light emission pattern of the first light emitting unit 600 according to the drive of the discharge device 260. When the control unit 700 detects the drive of the discharge device 260, the control unit 700 controls the first light emitting unit 600 so that the color of the light becomes blue and the light is always lit. The control unit 700 controls the first light emitting unit 600 to turn off when the drive of the discharge device 260 is not detected.

As described above, by controlling the first light emitting unit 600 to emit light according to the drive of the discharge device 260, the air state, more specifically, the state in which ions are added to the air. The user can easily grasp whether or not it is. The state in which ions are added to the air refers to a state in which ions are contained in the flow of air blown out from the outlet 130 by discharging the air sucked from the suction port 120 by the discharge device 260. .. Further, when ions are added to the air, by controlling the first light emitting unit 600 to emit light in a cold color (blue), the user is reminded of a refreshing feeling, and the discharge device 260 is driven. I can remember that I am. When the drive of the discharge device 260 is not detected, the first light emitting unit 600 is controlled to be turned off, but the present invention is not limited to this, and for example, the second light emitting unit is made to emit light in a color other than blue. It may be controlled to. Further, the first light emitting unit 600 controls the light emission according to the drive of the discharge device 260, but the present invention is not limited to this, and for example, the light emission may be controlled depending on whether or not the humidification operation is in progress. Good. In this case, when the control unit 700 detects that the humidification operation is in progress, the control unit 700 controls the first light emitting unit 600 so that the color of the light becomes blue and the light is always lit. Further, the control unit 700 controls so that the first light emitting unit 600 is turned off when it detects that the humidification operation is not in progress.

FIG. 19 is a diagram showing a first embodiment of a light emitting pattern of the second light emitting unit 610. FIG. 19A is a diagram showing a light emitting pattern of the second light emitting unit 610. FIG. 19B is a diagram showing the light emission timing of the second light emitting unit 610.

When the control unit 700 determines that the degree of dirt is "0" based on the detection value of the second dirt sensor (for example, the second dust sensor 650), the color of the light of the second light emitting unit Is controlled to turn blue and to turn off after blinking for a predetermined time. In this case, as long as the degree of dirt does not change from "0", the light-off state is maintained. When the control unit 700 determines that the degree of contamination is "1" based on the detection value of the second dust sensor 650, the color of the light of the second light emitting unit 610 becomes yellow and Control to blink and emit light. In this case, as long as the degree of dirt is "1", it is controlled to blink and emit light. When the control unit 700 determines that the degree of contamination is "2" based on the detection value of the second dust sensor 650, the color of the light of the second light emitting unit becomes red and blinks. Control to emit light. In this case, as long as the degree of dirt is "2", it is controlled to blink and emit light.

As described above, the user can grasp the state of the sucked air, that is, the state of the air in the room by changing the emission color according to the state of air pollution. Further, the cleaner the air, the closer the emission color is to the cold color (blue), so that the user can intuitively grasp that the room is in a clean state. In addition, the more polluted the air is, the closer the emission color is to a warm color (red), so that the user can intuitively grasp that the room is dirty.

With reference to FIG. 20, the interlocking control of the light emitting patterns of the first light emitting unit 600 and the second light emitting unit 610 by the air purifier 100 will be described. FIG. 20A is a diagram showing the light emission timings of the first light emitting unit 600 and the second light emitting unit 610 when the degree of contamination changes to “0”. FIG. 20B is a diagram showing the light emission timings of the first light emitting unit and the second light emitting unit when the degree of contamination changes to “1”. FIG. 20C is a diagram showing the light emission timings of the first light emitting unit and the second light emitting unit when the degree of contamination changes to “2”. In the following, the control unit 700 (more specifically, the comparison determination unit 703) is configured to be able to determine whether or not there is a change in the degree of contamination. Specifically, the storage unit 710 stores the determined degree of dirt, and it is assumed that the presence or absence of a change in the degree of dirt is determined by comparing with the degree of dirt determined immediately before.

The control unit 700 changes the light emission pattern of the second light emitting unit 610 based on the detection value of the second detection unit (for example, the second dust sensor 650). More specifically, first, the degree of dirtiness is determined by the determination unit 702. Then, it is determined whether or not the degree of dirtiness determined by the comparison determination unit 703 has changed. When the comparison determination unit 703 determines that the degree of contamination has changed, the light emission patterns of the first light emitting unit 600 and the second light emitting unit 610 are linked. That is, when the light emitting pattern (mainly the light emitting color) of the second light emitting unit 610 is changed according to the degree of contamination, the control unit 700 changes the light emitting pattern of the first light emitting unit 600. More specifically, when the control unit 700 determines the change in the degree of contamination, the first light emitting unit 600 and the second light emitting unit 610 alternately emit light for a predetermined time (or a predetermined number of times). As described above, the first light emitting unit 600 is controlled. Further, the control unit 700 controls so as to change the blinking pattern of the first light emitting unit 600 according to the determined degree of contamination.

In FIG. 20A, when the control unit determines that the degree of contamination has changed to “0”, the first light emitting unit 600 and the second light emitting unit 610 continuously and alternately emit light. The first light emitting unit 600 is controlled. The blinking interval of the first light emitting unit 600, in other words, the interval of one cycle including the extinguishing time t1 and the lighting time t2 is configured to be the same as the interval of one cycle which is the blinking interval of the second light emitting unit 610. Has been done. Then, the control unit 700 controls to turn off the first light emitting unit 600 when the second light emitting unit 610 is turned on and to turn on the first light emitting unit when the second light emitting unit 610 is turned off. doing.

In FIG. 20B, when the control unit determines that the degree of contamination has changed to "1", the first light emitting unit 600 and the second light emitting unit 610 intermittently and alternately emit light. The first light emitting unit 600 is controlled. The interval of one cycle including the extinguishing time t3 and the lighting time t2 of the first light emitting unit 600 is configured to be twice the interval of one cycle of the second light emitting unit 610. In the light emission pattern of FIG. 20 (b), the ratio of the light off time t3 and the lighting time t2 is changed so as to increase the ratio of the light off time t3 in one cycle as compared with the light emission pattern of FIG. 20 (a). ing. Then, the control unit 700 controls the first light emitting unit 600 and the second light emitting unit 610 to alternately emit light once each time the second light emitting unit 610 blinks twice. There is.

In FIG. 20 (c), when the control unit 700 determines that the degree of contamination has changed to "2", the first light emitting unit 600, the second light emitting unit 610, and the second light emitting unit 610, as in FIG. 20 (b), Is controlled so that it emits light alternately. The interval of one cycle including the extinguishing time t4 and the lighting time t2 of the first light emitting unit 600 is configured to be three times the interval of one cycle of the second light emitting unit 610. In the light emission pattern of FIG. 20 (c), the ratio of the light off time t4 and the lighting time t2 is changed so as to further increase the ratio of the light off time t4 in one cycle as compared with the light emission pattern of FIG. 20 (b). doing. Then, the control unit 700 controls the first light emitting unit 600 and the second light emitting unit 610 to alternately emit light once every time the second light emitting unit 610 blinks three times. There is.

As described above, when the control unit 700 determines that the state of air (for example, the degree of contamination) has changed, the control unit 700 alternately causes the first light emitting unit 600 and the second light emitting unit 610 to emit light, thereby producing air. It is possible to notify the user that the state of is changed. Further, by increasing or decreasing the number of times the light is emitted alternately in a predetermined period according to the degree of pollution, it is possible to easily grasp the current state of the air.

Further, the second light emitting unit 610 irradiates (scatters) light toward the floor surface S on which the air purifier 100 is placed, and the first light emitting unit 600 so that the upper surface 110e of the air purifier 100 shines. By being configured to irradiate (scatter) light, the user can easily grasp the state of light even from a distance. Irradiating light so that the upper surface 110e of the air purifier 100 shines can be rephrased as irradiating light toward the upper surface 110e of the air purifier 100. Here, the first light emitting unit 600 irradiates light so that the outlet 130 formed on the upper surface 110e shines. That is, the first light emitting unit 600 irradiates the light toward the outlet 130. As a result, it is possible to intuitively recognize that one of the light emitting units (first light emitting unit 600) represents the state of the air on the outlet 130 side. Therefore, it can be intuitively recognized that the other light emitting unit (second light emitting unit 610) located at a position downward from one light emitting unit represents the state of air on the suction port 120 side. The first light emitting unit 600 may irradiate light so as to illuminate at least a part of the upper surface 110e.

When it is determined that the degree of contamination has changed, the first light emitting unit 600 and the second light emitting unit 610 are linked and controlled, but the present invention is not limited to this, and for example, the dry humidity has changed. When the above is determined, the first light emitting unit 600 and the second light emitting unit 610 may be linked and controlled.

FIG. 21 is a flowchart showing the interlocking processing of the light emitting patterns of the first light emitting unit 600 and the second light emitting unit 610 by the control unit 700 of the air purifier 100. Here, it is assumed that the dust collecting operation by the air purifier 100 has been started, and the detection value d2 of the second dust sensor 650 is periodically acquired. Further, it is assumed that the storage unit 710 stores at least the degree of dirt D2 determined immediately before.

The control unit 700 acquires the detected value d2 of the second dust sensor 650 (step S701). The control unit 700 determines the degree of dirt D2 from the detected value d2 of the second dust sensor 650 (step S702). The control unit 700 determines whether or not there is a change in the degree of contamination D2 (step S703). When the control unit 700 determines that there is a change in the degree of contamination D2 (Yes in step S703), the control unit 700 changes the light emission pattern of the second light emitting unit 610 (step S704). More specifically, the emission color of the second light emitting unit 610 is controlled to be an emission color according to the degree of contamination. The control unit 700 changes the light emitting pattern of the first light emitting unit 600 according to the change of the light emitting pattern of the second light emitting unit 610. More specifically, it is controlled to change from lighting to blinking light for a certain period of time (step S705), and the interlocking control ends. When the control unit 700 determines that there is no change in the degree of contamination D2 (No in step S703), the interlocking control ends.

A second embodiment of the light emitting pattern of the first light emitting unit 600 and the second light emitting unit 610 will be described with reference to FIG. 22. FIG. 22A is a diagram showing a second embodiment of the light emitting pattern of the first light emitting unit 600 and the second light emitting unit 610, and the first light emitting unit 600 and the second light emitting unit 610 are air. The light emission pattern is changed according to the degree of dirt determined based on the dust concentration inside. That is, it has the same light emission pattern as that of the first embodiment in the second light emitting unit 610. FIG. 22B is a diagram showing an image recalled for each combination of the light emitting pattern of the first light emitting unit 600 and the light emitting pattern of the second light emitting unit 610.

As shown in FIG. 22B, when the first light emitting unit 600 and the second light emitting unit 610 are controlled to emit light in a cold color (blue) (in the case of the pattern "A1"), the suction port 120 It can be recalled that the air on the side and the air outlet 130 side is clean. Further, when the first light emitting unit 600 is controlled to emit light in a cold color (blue) and the second light emitting unit 610 is controlled to emit light in a warm color (yellow or red) (in the case of the pattern "A2"). It can be recalled that the air on the suction port 120 side is dirty, that is, the air in the room is dirty. Further, when the first light emitting unit 600 is controlled to emit light in a warm color (yellow or red) and the second light emitting unit 610 is controlled to emit light in a cold color (blue) (in the case of the pattern "A3"). The air on the outlet 130 side rather than the suction port 120 side is dirty, that is, the dust is not captured normally, an abnormality has occurred inside, and maintenance is required. Can be recalled. Similarly, when the first light emitting unit 600 is controlled to emit light in a warm color (red) and the second light emitting unit 610 is controlled to emit light in a warm color (yellow) (in the case of the pattern "A4"), suction is performed. Recall that the air on the outlet 130 side rather than the mouth 120 side is dirty, that is, the dust is not captured normally, an abnormality has occurred inside, and maintenance is required. can do. Further, when the first light emitting unit 600 is controlled to emit light in a warm color (yellow) and the second light emitting unit 610 is controlled to emit light in a warm color (red) (in the case of the pattern "A5"), the current state In operation, it can be recalled that the air is not completely purified, that is, the air in the room is very dirty.

As described above, the first light emitting unit 600 is configured to represent the state related to air pollution on the outlet 130 side, and the second light emitting unit 610 is configured to represent the state related to air pollution on the suction port 120 side. This makes it easy to recall what kind of dirty state the air flowing through the air purifier 100 is in. Therefore, the state of the indoor environment including the operating state of the air purifier 100 can be easily grasped.

A third embodiment of the light emitting pattern of the first light emitting unit 600 and the second light emitting unit 610 will be described with reference to FIG. 23. FIG. 23A is a diagram showing a third embodiment of the light emitting pattern of the first light emitting unit 600 and the second light emitting unit 610, and the first light emitting unit 600 and the second light emitting unit 610 are air. The light emission pattern is changed according to the dry humidity determined based on the humidity of. FIG. 23B is a diagram showing an image recalled for each combination of the light emitting pattern of the first light emitting unit 600 and the light emitting pattern of the second light emitting unit 610.

When the control unit 700 detects that the air purifier 100 is in the humidifying operation, the control unit 700 controls the first light emitting unit 600 as follows. When the control unit 700 determines that the dry humidity is "0" based on the detection value of the first humidity sensor 640, the light color of the first light emitting unit 600 is set to blue and It is controlled to turn off after blinking for a predetermined time. In this case, as long as the dry humidity does not change from "0", the light-off state is maintained. When the control unit 700 determines that the dry humidity is "1" based on the detection value of the first humidity sensor 640, the light color of the first light emitting unit 600 is changed to yellow and Control to blink and emit light. In this case, as long as the dry humidity is "1", it is controlled to constantly blink and emit light. When the control unit 700 determines that the dry humidity is "2" based on the detection value of the first humidity sensor 640, the color of the light of the first light emitting unit 600 is red. Control to blink and emit light. In this case, as long as the dry humidity is "2", it is controlled to constantly blink and emit light. The light emitting pattern of the second light emitting unit 610 has the same configuration as the light emitting pattern of the first light emitting unit 600, and thus the description thereof will be omitted.

As described above, by changing the emission color according to the humidity, the user can grasp the state of the sucked air, that is, the state of the air in the room. Further, the more appropriately humidified the air is, the closer the emission color is to a cold color (blue), so that the user can intuitively grasp that the room is humidified. In addition, the drier the air, the closer the emission color is to the warm color (red), so that the user can intuitively grasp that the room is in a dirty state.

As shown in FIG. 23 (b), when the first light emitting unit 600 and the second light emitting unit 610 are controlled to emit light in a cold color (blue) (in the case of the pattern "B1"), the suction port 120 It can be recalled that the air on the side and the air outlet 130 side is properly humidified. Further, when the first light emitting unit 600 is controlled to emit light in a cold color (blue) and the second light emitting unit 610 is controlled to emit light in a warm color (yellow or red) (in the case of the pattern "B2"). It can be recalled that the air on the suction port 120 side is still dry, that is, the room is being humidified. Further, when the first light emitting unit 600 is controlled to emit light in a warm color (yellow or red) and the second light emitting unit 610 is controlled to emit light in a cold color (blue) (in the case of the pattern "B3"). Recall that the air at the outlet 130 is drier than the suction port 120, that is, the humidification is not performed normally, an abnormality has occurred inside, and maintenance is required. can do. Similarly, when the first light emitting unit 600 is controlled to emit light in a warm color (red) and the second light emitting unit 610 is controlled to emit light in a warm color (yellow) (in the case of the pattern "B4"), suction is performed. Recall that the air at the outlet 130 is drier than the mouth 120, that is, the humidification is not performed normally, an abnormality has occurred inside, and maintenance is required. be able to. Further, when the first light emitting unit 600 is controlled to emit light in a warm color (yellow) and the second light emitting unit 610 is controlled to emit light in a warm color (red) (in the case of the pattern "B5"), the current state In operation, it can be recalled that the air is not sufficiently humidified, that is, the air in the room is very dry.

As described above, the first light emitting unit 600 is configured to represent the state related to the air humidity on the outlet 130 side, and the second light emitting unit 610 is configured to represent the state related to the air humidity on the suction port 120 side. This makes it easy to recall what kind of humidified state the air flowing through the air purifier 100 is in. Therefore, the state of the indoor environment including the operating state of the air purifier 100 can be easily grasped.

The air purifier 100 may blink the first light emitting unit 600 when various information is acquired via the communication unit 730. As a result, it is possible to easily grasp that the information has been acquired from the external device.

Further, the air purifier 100 controls the light emission of the first light emitting unit 600 and the second light emitting unit 610 according to the detection values of the first detection unit and the second detection unit, but the present invention is limited to this. Instead, the light emission of the first light emitting unit 600 and the second light emitting unit 610 may be controlled based on the information acquired via the communication unit 730.

For example, when an Earthquake Early Warning is acquired via the communication unit 730, the first light emitting unit 600 and the second light emitting unit 610 are controlled to alternately emit red light. At this time, by shortening the blinking time of one cycle of the first light emitting unit 600 and the second light emitting unit 610, that is, by alternately emitting light at high speed, the user can be reminded of an emergency. .. Further, when a heavy rain warning is acquired via the communication unit 730, the first light emitting unit 600 and the second light emitting unit 610 are controlled to alternately emit blue light. At this time, by changing the blinking time of one cycle of the first light emitting unit 600 and the second light emitting unit 610 according to the alarm level (rain intensity), the user is reminded of the current rain intensity. be able to. Further, when the evacuation information is acquired via the communication unit 730, the first light emitting unit 600 and the second light emitting unit 610 are controlled to alternately emit light. At this time, by changing the emission colors of the first light emitting unit 600 and the second light emitting unit 610 according to the evacuation level, the user can be reminded of the current evacuation level. Further, when a lightning warning is obtained via the communication unit 730, the first light emitting unit 600 and the second light emitting unit 610 are controlled to alternately emit light in blue (or yellow). At this time, the lighting time of the first light emitting unit 600 and the second light emitting unit 610 may be partially overlapped with each other.

In the above embodiment, the air purifier 100 is used, but the present invention is not limited to this, and a fan that sucks in air from the suction port and blows out the air in which dust is collected by the filter unit is blown out from the air outlet. Any air conditioner may be used.

The present invention is not limited to the above embodiment, and various modifications are possible. For example, it can be replaced with a configuration that is substantially the same as the configuration shown in the above embodiment, a configuration that exhibits the same action and effect, or a configuration that can achieve the same purpose.

100 air purifier, 110 housing, 110e top surface, 120 suction port, 130 air outlet, 200 air passage, 200a first air passage, 200b second air passage, 201 wall part, 201a first wall part, 201b second Wall part, 250a fan, 260 discharge device, 300 louver, 310a curved surface part, 320 pair of side walls, 350 operation part, 500 guide part, 600 irradiation part (first light emitting part), 610 second light emitting part, 620 1st dust sensor, 630 1st odor sensor, 640 1st humidity sensor, 650 2nd dust sensor, 660 2nd odor sensor, 670 2nd humidity sensor, 700 control unit, 720 notification unit

Claims (5)

A fan that sucks in from the suction port and blows out the air that has collected dust in the filter part so that it blows out from the outlet.
A first detection unit that detects the state of air on the downstream side of the filter unit, and
A control unit that controls the rotation speed of the fan based on the detection value of the first detection unit, and
Air conditioner equipped with. Further, a second detection unit for detecting the state of air on the upstream side of the filter unit is provided.
The air conditioner according to claim 1, wherein the control unit controls the rotation speed of the fan based on the detection value of the first detection unit and the detection value of the second detection unit. The first detection unit includes a first pollution sensor that detects an air pollution state on the downstream side of the filter unit.
The second detection unit includes a second pollution sensor that detects an air pollution state on the upstream side of the filter unit.
When the control unit compares the detected value of the first dirt sensor with the detected value of the second dirt sensor and determines that the air on the downstream side of the filter unit is dirty, the rotation of the fan The air conditioner according to claim 2, which reduces the number. The filter unit includes a humidifying filter that humidifies the air sucked from the suction port.
The first detection unit includes a first humidity sensor that detects the humidity of air on the downstream side of the filter unit.
The second detection unit includes a second humidity sensor that detects the humidity of air on the upstream side of the filter unit.
The control unit compares the detected value of the first humidity sensor with the detected value of the second humidity sensor at the time of humidification by the humidifying filter, and determines that the humidity of the air on the downstream side of the filter unit is low. The air conditioner according to claim 2 or 3, wherein the air conditioner reduces the rotation speed of the fan. Further, any one of claims 2 to 4, further comprising a notification unit that notifies an abnormal state of the air conditioner based on the detection value of the first detection unit and the detection value of the second detection unit. The air conditioner described in.

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