JP7226751B1 - Air cleaner - Google Patents

Abstract

The present invention provides an air cleaner capable of suppressing a decline in the ability to remove carbon dioxide from the air. An air purifier 100 includes an air purifying filter 31, an absorption unit 20 housing an absorption member that absorbs carbon dioxide, and a housing 10 in which the air purifying filter 31 and the absorption unit 20 are arranged. The casing 10 has a first chamber 13 that allows air to come into contact with the side surface of the absorption unit 20, the top surface of the absorption unit 20, and the bottom surface of the absorption unit 20, and a casing 10 that sucks air into the casing 10 and directs the air to the outside of the casing 10. A fan 40 that discharges air and generates an airflow that passes through the absorption unit 20 and the air purifying filter 31 is provided. [Selection diagram] Figure 2

Description

The present invention relates to air cleaners.

In recent years, efforts to protect the environment have been made socially. In particular, companies and public institutions are making efforts to recover carbon dioxide, which is considered to be a cause of global warming.

For example, Patent Literature 1 discloses an air purifier equipped with a carbon dioxide fixing filter. The carbon dioxide fixing filter includes a storage container and carbon dioxide fixing material pellets stored in the storage container. Then, by driving the fan of the air purifier, the air is passed through the storage container from the side of the storage container, and the carbon dioxide fixing material pellets adsorb and fix carbon dioxide in the air.

JP-A-7-68164

Here, the carbon dioxide fixing material pellets described in Patent Document 1 become saturated by absorbing a certain amount of carbon dioxide. A saturated state is a state in which the amount of carbon dioxide that can be absorbed reaches almost the upper limit, and means a state in which carbon dioxide can hardly be absorbed. In Patent Document 1, the fan of the air purifier is driven to allow air to pass through the storage container from the side surface of the storage container. There are parts that are hard to touch. As a result, the carbon dioxide fixing material pellets are quickly saturated in areas that are likely to be exposed to air. Then, the part of the carbon dioxide fixing material pellets that is likely to come into contact with the air becomes saturated, so the ability of the air purifier to remove carbon dioxide from the air decreases.

This disclosure has been made to solve the above problems, and an object thereof is to provide an air cleaner capable of suppressing a decrease in the ability to remove carbon dioxide from the air.

In order to achieve the above object, an air cleaner according to one aspect of the present disclosure, which is disclosed below,
An air purifying filter, an absorption unit containing an absorption member that absorbs carbon dioxide, and a housing in which the air purifying filter and the absorption unit are arranged, wherein the side surface of the absorption unit and the top surface of the absorption unit and a housing having a space for contacting air with the lower surface of the absorption unit, and a fan for sucking air into the housing and discharging the air to the outside of the housing, wherein the absorption unit and the air cleaning filter are combined. a fan for generating an airflow passing therethrough.

According to the above configuration, the air contacts not only the side surfaces of the absorbent unit but also the upper and lower surfaces of the absorbent unit. It is possible to prevent the occurrence of partial As a result, deterioration of the ability to remove carbon dioxide in the air can be suppressed.

FIG. 1 is a perspective view showing the configuration of an air cleaner 100 according to the first embodiment. FIG. 2 is a cross-sectional view showing the configuration of the air cleaner 100 according to the first embodiment. FIG. 3 is a cross-sectional view schematically showing the structure of the absorbent unit 20 according to the first embodiment. 4 is a plan view of the lid member 21a arranged on the case portion 21. FIG. FIG. 5 is a schematic diagram showing how the absorbent unit 20 is attached and detached. FIG. 6 is a cross-sectional view showing the configuration of an air cleaner 200 according to the second embodiment. FIG. 7 is a cross-sectional view showing the configuration of an air cleaner 300 according to the third embodiment. FIG. 8 is a schematic diagram showing the arrangement relationship between the motor 323a and the shaft member 323. As shown in FIG. FIG. 9 is a cross-sectional view showing the configuration of an air cleaner 400 according to the fourth embodiment. FIG. 10 is a perspective view showing the configuration of an air cleaner 500 according to the fifth embodiment. FIG. 11 is a diagram showing the configuration of an air cleaner 600 according to a first modified example of the first to fifth embodiments. FIG. 12 is a diagram showing the configuration of an air purifier 700 according to a second modification of the first through fifth embodiments. FIG. 13 is a diagram showing the configuration of an absorbent unit 820 according to a third modified example of the first through fifth embodiments. FIG. 14 is a diagram showing the structure of an absorbent unit 920 according to a fourth modified example of the first through fifth embodiments.

Hereinafter, embodiments of the present disclosure will be described based on the drawings. Note that the present disclosure is not limited to the following embodiments, and design changes can be made as appropriate within the scope of satisfying the configuration of the present disclosure. Further, in the following description, the same reference numerals are used in common for the same parts or parts having similar functions in different drawings, and the repeated description thereof will be omitted. Also, each configuration described in the embodiment and modifications may be appropriately combined or changed. Also, in order to make the explanation easier to understand, in the drawings referred to below, the configuration is shown in a simplified or schematic form, or some constituent members are omitted.

[First embodiment]
(Overall configuration of air purifier)
FIG. 1 is a perspective view showing the configuration of an air cleaner 100 according to the first embodiment. FIG. 2 is a cross-sectional view showing the configuration of the air cleaner 100 according to the first embodiment. The air cleaner 100 is a device that removes dust in the air and removes carbon dioxide in the air. The air purifier 100 may be placed indoors or outdoors as a single unit, or may be incorporated in other devices (vending machines, vehicles, aircraft, ships, air conditioners, etc.). When the air purifier 100 is installed outdoors, it is preferable that the housing 10 of the air purifier 100 is waterproof. good.

As shown in FIG. 1 , the housing 10 includes an intake port 11 that draws air into the housing 10 and an outlet port 12 that discharges air to the outside of the housing 10 . Although FIG. 1 shows an example in which the suction port 11 and the discharge port 12 are provided on the same surface of the housing 10, they may be provided on different surfaces.

As shown in FIG. 2 , the air cleaner 100 includes an absorption unit 20 , an air purification filter 31 , an absorption member powder removal filter 32 and a fan 40 . Housing 10 includes first chamber 13 , second chamber 14 , third chamber 15 and fourth chamber 16 . The first chamber 13 , the second chamber 14 , the third chamber 15 and the fourth chamber 16 are provided in order within the ventilation path from the suction port 11 to the discharge port 12 . A suction port filter 11 a is arranged at the suction port 11 . The suction port filter 11 a is a filter for preventing foreign matter from entering the housing 10 through the suction port 11 . In addition, the suction port filter 11 a has higher air permeability than the air cleaning filter 31 and the absorbing member powder removing filter 32 . Note that a louver (not shown) may be arranged on the ejection port 12 .

As shown in FIG. 2, an absorption unit 20 is arranged in the first chamber 13 . An absorbing member powder removal filter 32 is arranged in the second chamber 14 . A fan 40 is arranged in the third chamber 15 . An air cleaning filter 31 is arranged in the fourth chamber 16 .

FIG. 3 is a cross-sectional view schematically showing the structure of the absorbent unit 20 according to the first embodiment. As shown in FIG. 3 , the absorption unit 20 includes a case portion 21 housing an absorption member 24 that absorbs carbon dioxide, a plurality of blade portions 22 and a shaft member 23 . The absorbing member 24 is, for example, a calcium hydroxide-based filter, which changes from "white" to "red, purple, or pink" when carbon dioxide is absorbed. For example, in the first embodiment, the absorbent member 24 is formed in the form of granules, but may be formed in the form of powder or in the form of a single solid. As the absorbing member 24, a material that changes from "red or purple" to "white or pink" upon absorption of carbon dioxide may be used, or a material that changes to a color other than the above may be used. In addition, the method of adsorbing carbon dioxide to the absorbing member 24 is not limited to the adsorption method using a chemical reaction represented by calcium hydroxide or amine, but may be a carbon dioxide repair method using a hollow fiber membrane or the like. may be used, or other methods may be used. In addition, since the chemical reaction system can recover carbon dioxide as a solid (powder), the recovered carbon dioxide can be easily transported and stored.

The plurality of absorbing members 24 are agitated within the case portion 21 by rotating the case portion 21 around the shaft member 23 . As a result, the plurality of absorbing members 24 are mixed, so that the variation in the carbon dioxide absorption amount (saturated state) of the plurality of absorbing members 24 can be suppressed. Although FIG. 3 shows an example in which a plurality of absorbing members 24 are filled up to a part of the case portion 21 , the entire inside of the case portion 21 may be filled with a plurality of absorbing members 24 .

As shown in FIG. 3, the case portion 21 has, for example, a rectangular prism shape. Lid members 21a are arranged on the four surfaces of the case portion 21, respectively. 4 is a plan view of the lid member 21a arranged on the case portion 21. FIG. As shown in FIG. 4, the lid member 21a is provided with a plurality of holes 21b. Each of the plurality of holes 21 b introduces air from outside the case portion 21 into the case portion 21 and discharges the air inside the case portion 21 to the outside of the case portion 21 . As a result, the plurality of absorbing members 24 come into contact with the air via the four surfaces of the case portion 21, so that there are areas in the absorbing unit 20 where the absorbing members 24 are likely to come into contact with air and areas where the absorbing members 24 are less likely to come into contact with air. can be prevented from occurring. As a result, deterioration of the ability to remove carbon dioxide in the air can be suppressed. That is, the first chamber 13 is a space that allows air to contact the side surface of the absorption unit 20, the top surface of the absorption unit 20, and the bottom surface of the absorption unit 20. As shown in FIG. In addition, in the first embodiment, since the absorbing unit 20 rotates, the side surface, the top surface, and the bottom surface are exchanged by rotation.

Further, as shown in FIG. 4, the diameter D1 of the plurality of holes 21b is smaller than the diameter D2 of the absorbing member 24. As shown in FIG. This can prevent the absorbing member 24 from popping out of the hole 21b. Here, although FIG. 4 shows an example in which the hole portion 21b is formed in a circular shape and the absorbing member 24 is formed in an oval shape, the present invention is not limited to this. That is, the hole portion 21b may have an elliptical shape, an elliptical shape, or a polygonal shape such as a triangle or rectangle, and the absorbing member 24 may have a polygonal shape such as a circle, ellipse, triangle or rectangle. may Even in these cases, it is sufficient that the absorbing member 24 and the hole 21b have a dimensional relationship that prevents the absorbing member 24 from popping out of the hole 21b.

The lid member 21 a is made of a transparent member so that the absorbent member 24 inside the absorbent unit 20 can be visually recognized from outside the absorbent unit 20 . As a result, the absorbent member 24 inside the absorbent unit 20 can be visually recognized by the user from outside the absorbent unit 20 , so that the user can select the absorbent member 24 or the absorbent unit 20 according to the state (for example, color) of the absorbent member 24 . can be determined whether or not to replace the Also, the lid member 21a is configured to be attachable/detachable to/from the case portion 21 . Thereby, the absorbing member 24 inside the case portion 21 can be replaced.

FIG. 5 is a schematic diagram showing how the absorbent unit 20 is attached and detached. As shown in FIG. 5 , for example, the absorbing unit 20 is arranged in the case portion 21 by arranging the shaft member 23 in the shaft arrangement portion 17 a formed in the case portion 21 . The shaft arrangement portion 17a is configured as, for example, a groove, a hole, or a notch. As shown in FIG. 2, the shaft member 23 is rotatably arranged in the case portion 21, and when the blade portion 22 hits the airflow generated by the fan 40, the absorption unit 20 (shaft member 23) rotates. . That is, in the first embodiment, the shaft arrangement portion 17a of the case portion 21 and the shaft member 23 constitute a rotation mechanism portion. Further, the shaft member 23 extends in a direction perpendicular to the direction (X2 direction) from the suction port 11 toward the absorption unit 20 and perpendicular to the vertical direction. Although FIG. 2 shows an example in which the absorption unit 20 rotates counterclockwise on the paper surface, it may rotate clockwise. Moreover, in the first embodiment, an example in which four blade portions 22 are provided is shown, but the number of blade portions 22 may be three or less, or five or more.

Further, as shown in FIG. 5, the case portion 21 is formed with a guide portion 17b connected to the shaft arrangement portion 17a. The guide portion 17b may be, for example, a notch extending from the end of the case portion 21 in the X1 direction, or may be a groove. Then, the absorbing unit 20 is attached to and detached from the case portion 21 by moving the absorbing unit 20 along the guide portion 17b. As a result, the absorbing unit 20 containing the absorbing member 24 in the saturated state can be replaced with the absorbing unit 20 containing the new absorbing member 24 .

As shown in FIG. 3 , the blade portions 22 protrude from four corners of the case portion 21 . As a result, the airflow (wind) generated by the fan 40 hits the blade portion 22 . Then, the air current presses the blade portion 22 and the case portion 21 rotates around the shaft member 23 . Accordingly, when the fan 40 is driven, the absorption unit 20 automatically rotates. As the absorbing unit 20 rotates and moves, the way in which the absorbing member 24 contacts the air changes. can be prevented.

As shown in FIG. 2, the absorbing member powder removing filter 32 is located downstream of the airflow generated by the fan 40 from the absorbing unit 20 and upstream of the air cleaning filter 31 from the airflow generated by the fan 40 in a second chamber. It is located at 14. The absorbing member powder removing filter 32 allows the air passing through the absorbing unit 20 to pass therethrough. As a result, even if powder generated by partly chipping off the absorbing member 24 flies out of the hole 21b, the absorbing member powder removal filter 32 can capture the powder. As a result, the fan 40 can be prevented from malfunctioning due to the powder of the absorbing member 24 entering the fan 40, and the clogging of the air cleaning filter 31 caused by the powder of the absorbing member 24 entering can be prevented. be able to.

The fan 40 is driven by being supplied with power, sucks air into the housing 10 and discharges the air out of the housing 10 as shown in FIG. The fan 40 generates an airflow passing through the absorbing unit 20 , the air cleaning filter 31 and the absorbing member powder removing filter 32 . Although FIG. 2 shows the fan 40 as a sirocco fan, it may be a propeller fan, a turbo fan, or the like. In addition, in the first embodiment, the fan 40 is employed such that when the power consumption of the fan 40 is converted to carbon dioxide, the converted amount of carbon dioxide is less than the amount of carbon dioxide that can be absorbed by the absorption unit 20 .

The air cleaning filter 31 is, for example, a filter that captures dust. A HEPA filter can be used as the air cleaning filter 31 . The air cleaning filter 31 has a performance of capturing finer dust than the suction port filter 11 a and the absorbing member powder removal filter 32 . Also, the air cleaning filter 31 is arranged in the fourth chamber 16 downstream of the airflow generated by the fan 40 from the absorption unit 20 . As a result, the air cleaning filter 31 is arranged on the side where the air is discharged from the air cleaner 100 (downstream side of the airflow), so the dust generated inside the air cleaner 100 is discharged to the outside of the air cleaner 100. can be prevented.

Further, as shown in FIG. 2 , the air cleaning filter 31 and the discharge port 12 are provided above both the absorption unit 20 and the suction port 11 in the housing 10 . As a result, it is possible to prevent the dust on the floor surface outside the air cleaner 100 from being blown up by the wind blown from the outlet 12 .

[Second embodiment]
Next, the configuration of the air cleaner 200 according to the second embodiment will be described with reference to FIG. In the second embodiment, the air cleaner 200 is provided with the dehumidifying unit 50 . In addition, the same code|symbol as 1st Embodiment is used for the structure similar to 1st Embodiment, and description is abbreviate|omitted.

FIG. 6 is a cross-sectional view showing the configuration of an air cleaner 200 according to the second embodiment. As shown in FIG. 6 , air cleaner 200 includes dehumidification unit 50 . The dehumidification unit 50 is arranged, for example, upstream of the airflow generated by the fan 40 relative to the absorption unit 20 . Accordingly, by arranging the dehumidifying unit 50 in the suction port 11 of the air cleaner 100 according to the first embodiment, the air cleaner 200 according to the second embodiment can be easily constructed. The dehumidifying unit 50 includes a dehumidifying section 51 including a heat exchanger and the like. The dehumidifier 51 collects the moisture in the air entering the air purifier 200 and sends out the dried air to the absorption unit 20 side. According to the configuration of the second embodiment, it is possible to suppress moisture from being absorbed by the absorbent member of the absorbent unit 20 . As a result, the increase in the weight of the absorbent member due to the absorption of water is reduced, so that the amount of carbon dioxide absorbed by the absorbent member can be easily estimated by measuring the weight of the absorbent member. Other configurations and effects are the same as those of the first embodiment.

[Third embodiment]
Next, the configuration of the air cleaner 300 according to the third embodiment will be described with reference to FIGS. 7 and 8. FIG. In the third embodiment, the air cleaner 300 is provided with a motor 323a that rotates the absorption unit 320 . In addition, the same reference numerals as in the first or second embodiment are used for the same configuration as in the first or second embodiment, and the description thereof is omitted.

FIG. 7 is a cross-sectional view showing the configuration of an air cleaner 300 according to the third embodiment. FIG. 8 is a schematic diagram showing the arrangement relationship between the motor 323a and the shaft member 323. As shown in FIG. As shown in FIG. 7, air purifier 300 includes absorption unit 320 . Unlike the first embodiment, the absorption unit 320 according to the third embodiment is not provided with the blade portion 22 . Further, as shown in FIG. 8, the shaft member 323 of the absorption unit 320 is connected to a motor 323a, and the absorption unit 320 (shaft member 323) is rotated by driving the motor 323a. According to the third embodiment as well, when the absorbing unit 320 rotates and moves, the way in which the absorbing member is exposed to air changes. Therefore, it is possible to prevent the occurrence of a portion that is easily exposed to air and a portion that is difficult to be exposed to air. can. Other configurations and effects are the same as those of the first embodiment.

[Fourth Embodiment]
Next, the configuration of an air cleaner 400 according to the fourth embodiment will be described with reference to FIG. In the fourth embodiment, the air purifier 400 is provided with a carbon dioxide concentration sensor 460 , a control section 470 and a notification section 480 . It should be noted that the same reference numerals as in any one of the first to third embodiments are used for the same configurations as those in any one of the first to third embodiments, and description thereof will be omitted.

FIG. 9 is a cross-sectional view showing the configuration of an air cleaner 400 according to the fourth embodiment. As shown in FIG. 9 , air cleaner 400 includes carbon dioxide concentration sensor 460 , control section 470 , and notification section 480 . The carbon dioxide concentration sensor 460 is arranged, for example, in the second chamber 14 downstream of the absorption unit 20 . Thereby, the carbon dioxide concentration sensor 460 detects the carbon dioxide concentration of the air that has passed through the absorption unit 20 while the fan 40 is being driven. In addition, when the fan 40 is stopped, the carbon dioxide concentration sensor 460 detects that the air from the suction port 11 or the discharge port 12 (air that has not passed through the absorption unit 20) is detected because almost no air passes through the absorption unit 20. ) to detect the carbon dioxide concentration.

Control unit 470 includes a control circuit (processor). The control unit 470 starts the operation of the fan 40 when the concentration of carbon dioxide is equal to or higher than a predetermined value while the fan 40 is stopped. The "predetermined value" may be configured to be changeable to any value by the user, or may be a fixed value, for example. In addition, based on the result of comparison between the carbon dioxide concentration when the fan 40 is stopped and the carbon dioxide concentration when the fan 40 is being driven, the control unit 470 instructs the notification unit 480 to A notification prompting replacement of the member 24 is made. For example, the notification unit 480 is a lamp. The control unit 470 turns on the lamp of the notification unit 480 when the difference value between the carbon dioxide concentration when the fan 40 is stopped and the carbon dioxide concentration when the fan 40 is being driven is within a predetermined range. Light up or blink. The "predetermined range" can be set arbitrarily, and is, for example, in the range of 0 ppm to 100 ppm. Note that the notification unit 480 may be configured as a display. In this case, a message prompting replacement of the absorbent unit 20 may be displayed on the display. Other configurations and effects are the same as those of the first embodiment.

[Fifth embodiment]
Next, with reference to FIG. 10, the configuration of an air cleaner 500 according to the fifth embodiment will be described. In the fifth embodiment, an air purifier 500 is provided with a renewable energy generator 510 . It should be noted that the same reference numerals as in any one of the first to fourth embodiments are used for the same configurations as those in any one of the first to fourth embodiments, and description thereof will be omitted.

FIG. 10 is a perspective view showing the configuration of an air cleaner 500 according to the fifth embodiment. As shown in FIG. 10 , air cleaner 500 includes renewable energy generator 510 . The renewable energy power generation device 510 is, for example, a photovoltaic panel, and the photovoltaic panel is arranged on the upper surface of the housing 10 . Air purifier 500 drives fan 40 with power generated by renewable energy power generator 510 . Further, in the fifth embodiment, the amount of carbon dioxide obtained by subtracting the power generated by the renewable energy power generation device 510 from the power consumption of the fan 40 and converted to carbon dioxide is less than the amount of carbon dioxide that can be absorbed by the absorption unit 20. A renewable energy power generation device 510 is employed. Note that the renewable energy power generation device 510 is not limited to a photovoltaic power generation panel, and may be a windmill, a water turbine, or a device that generates power using geothermal or biomass fuel. According to the configuration of the fifth embodiment, the air purifier 500 can be operated using renewable energy, and the emission of carbon dioxide can be suppressed. Other configurations and effects are the same as those of the first embodiment.

[Modification]
As described above, the above-described embodiments are merely examples for carrying out the present disclosure. Therefore, the present disclosure is not limited to the above-described embodiments, and the above-described embodiments can be appropriately modified and implemented without departing from the scope of the present disclosure.

(1) In the above-described first to fifth embodiments, an example in which the absorbing unit rotates was shown, but the present disclosure is not limited to this. For example, in the air cleaner 600 according to the first modification shown in FIG. 11, the absorption unit 620 is fixed to the housing 10 so as not to rotate. Even in this case, since air is ventilated into the absorbent unit 620 from the side surface, the upper surface, and the lower surface of the absorbent unit 620, it is possible to prevent the occurrence of a portion that is easily exposed to air and a portion that is difficult to be exposed to air within the absorbent unit. .

(2) In the above-described second embodiment, an example in which the dehumidification unit is arranged on the upstream side of the absorption unit has been shown, but the present disclosure is not limited to this. For example, a dehumidification unit 750 may be arranged downstream of the absorption unit 20 as in an air purifier 700 according to a second modification shown in FIG.

(3) In the first to fifth embodiments, an example in which the air purifying filter is arranged downstream of the absorption unit has been shown, but the present disclosure is not limited to this. For example, an air cleaning filter may be arranged upstream of the absorption unit 20 .

(4) In the fourth embodiment, an example in which the carbon dioxide concentration sensor is arranged in the second chamber has been shown, but the present disclosure is not limited to this. The carbon dioxide concentration sensor may be arranged in the first chamber, the third chamber, or the fourth chamber, or may be arranged outside the housing 10 .

(5) In the above-described first to fifth embodiments, an example in which the color of the filter changes from "white" to "red, purple, or pink" is shown, but the present disclosure is not limited to this. For example, an absorbing member that changes from "red or purple" to "white or pink" upon absorption of carbon dioxide may be used.

(6) In the above first to fifth embodiments, an example in which the suction port and the absorption unit are arranged in the lower stage and the discharge port and the air cleaning filter are arranged in the upper stage in the housing is shown, but the present disclosure is limited to this. do not have. For example, in the housing, the suction port and the absorption unit may be arranged on the upper stage, and the discharge port and the air cleaning filter may be arranged on the lower stage.

(7) In the above-described first to fifth embodiments, an example in which a hole is provided in the cover member has been shown, but the present disclosure is not limited to this. For example, as in the absorption unit 820 according to the third modified example shown in FIG. 13, the cover member 821a is not provided with holes, and a plurality of holes (not shown) are formed on the surface 821b of the housing 821 other than the cover member 821a. may be provided.

(8) In the above-described first to fifth embodiments, an example in which the casing of the absorbent unit is formed in a quadrangular prism shape has been shown, but the present disclosure is not limited to this. For example, like an absorption unit 920 according to a fourth modified example shown in FIG. 14, a housing 921 may be formed in a cylindrical shape.

Moreover, the air purifier described above can be explained as follows.

An air purifier according to a first configuration comprises an air purifying filter, an absorption unit containing an absorption member that absorbs carbon dioxide, a ventilation path connecting the air purifying filter and the absorption unit, and rotating the absorption unit. A rotation mechanism, and a fan for generating an airflow in the absorption unit, the ventilation path, and the air cleaning filter are provided (first configuration).

According to the first configuration, air contacts not only the side surfaces of the absorbent unit but also the upper and lower surfaces of the absorbent unit. It is possible to prevent the occurrence of hard-to-touch portions. As a result, deterioration of the ability to remove carbon dioxide in the air can be suppressed.

In the first configuration, the air purifier may further include a rotation mechanism that rotates the absorption unit (second configuration).

According to the second configuration, since the absorption unit rotates and moves to change the way air contacts the absorbent member, it is possible to prevent the occurrence of a portion that is easily exposed to air and a portion that is difficult to be exposed to air. can be done.

In the second configuration, the rotation mechanism may be configured to rotate the absorption unit when the airflow generated by the fan hits the absorption unit (third configuration).

According to the third configuration, there is no need to provide a motor for driving the rotation mechanism. As a result, power consumption of the air cleaner can be reduced.

In the third configuration, the absorption unit may include blades, and the rotation mechanism may include a shaft member that rotates the absorption unit when the airflow generated by the fan hits the blades (fourth configuration). .

According to the fourth configuration, when the airflow is generated by the fan, the absorbing unit can be automatically rotated by the blade portion and the shaft member.

In a fourth configuration, the housing may include a suction port for sucking air into the housing and a discharge port for discharging air to the outside of the housing, and the shaft member may extend in a direction from the suction port toward the absorption unit. may be configured so as to extend in a direction perpendicular to each other (fifth configuration).

According to the fifth configuration, the airflow directed from the absorption port to the absorption unit hits the blade portion, whereby the absorption unit can be rotated by the shaft member.

In any one of the first to fifth configurations, at least part of the absorbent unit may be made of a transparent member so that the absorbent member inside the absorbent unit can be visually recognized from outside the absorbent unit (sixth configuration).

According to the fifth configuration, the absorbent member in the absorbent unit can be visually recognized by the user from outside the absorbent unit. This allows the user to determine whether or not to replace the absorbent member or the absorbent unit according to the state of the absorbent member.

In any one of the first to sixth configurations, the absorbent unit may include a square prism-shaped case portion that houses the absorbent member, and each of the four surfaces of the square prism-shaped case portion has a hole. (seventh configuration).

According to the seventh configuration, even when the absorbing member is accommodated in the case portion, the air can be ventilated from each of the four surfaces of the case portion through the holes.

In any one of the first to seventh configurations, the air purifier may further include a dehumidifier disposed upstream of the airflow generated by the fan from the absorption unit (eighth configuration).

According to the eighth configuration, it is possible to suppress moisture from being absorbed by the absorbent member of the absorbent unit. As a result, the increase in the weight of the absorbent member due to the absorption of water is reduced, so that the amount of carbon dioxide absorbed by the absorbent member can be easily estimated by measuring the weight of the absorbent member.

In any one of the first to eighth configurations, the air purifying filter may be arranged downstream of the airflow generated by the fan from the absorption unit (ninth configuration).

According to the ninth configuration, since the air purifying filter is arranged on the side where air is discharged from the air purifier (downstream side of the airflow), the dust generated inside the air purifier is discharged to the outside of the air purifier. can prevent

In the ninth configuration, the air purifying filter may be provided at a position above the absorption unit in the housing (tenth configuration).

According to the tenth configuration, since the portion on the downstream side of the airflow is arranged upward, it is possible to prevent dust on the floor surface outside the air purifier from being blown up by the wind that has passed through the air purifying filter. can be done.

In any one of the first to tenth configurations, the air purifier is arranged downstream of the airflow generated by the fan from the absorption unit and upstream of the airflow generated by the fan from the air cleaning filter. An absorbing member powder removal filter may be further provided (eleventh configuration).

According to the tenth configuration, even if a part of the absorbent member in the absorbent unit is discharged from the absorbent unit, the absorbent member powder removal filter can remove the absorbent member.

In any one of the first to tenth configurations, the housing may include an inlet for sucking air into the housing and an outlet for discharging air to the outside of the housing, and the air cleaning filter and the outlet may be provided at a position above both the absorption unit and the suction port in the housing (eleventh configuration).

DESCRIPTION OF SYMBOLS 10...Case, 11...Suction port, 12...Discharge port, 13...First chamber, 14...Second chamber, 15...Third chamber, 16...Fourth chamber, 20, 320, 620, 820, 920... Absorption Unit 21, 821, 921 Case portion 21a, 821a Lid member 21b Hole 22 Blade portion 23, 323 Shaft member 24 Absorbing member 31 Air cleaning filter 32 Absorbing member Powder removal filter 40 Fan 50,750 Dehumidifying unit 51 Dehumidifying section 100,200,300,400,500,600,700 Air cleaner

Claims (8)

an air cleaning filter,
an absorption unit containing an absorption member that absorbs carbon dioxide;
a housing in which the air cleaning filter and the absorption unit are arranged, the housing including a suction port for sucking air into the housing;
a fan that sucks air into the housing from the suction port and discharges the air out of the housing, the fan generating an airflow that passes through the absorption unit and the air cleaning filter;
the housing includes a support member that supports the absorption unit so that the absorption unit faces the suction port within the housing;
a gap between the absorption unit and the inner wall of the housing so that the air sucked from the suction port toward the absorption unit is discharged out of the housing via the upper and lower sides of the absorption unit; is provided,
The outer surface of the absorbent unit has holes for venting into the absorbent unit in a portion facing the suction port, an upper portion, and a lower portion,
the support member includes a rotation mechanism that rotates the absorption unit;
The rotating mechanism includes a rotating shaft orthogonal to a direction from the suction port toward the absorbing unit and a vertical direction,
The air purifier according to claim 1, wherein the rotation mechanism section rotates the absorption unit when an airflow generated by the fan hits the absorption unit. the absorption unit includes a vane,
2. The air cleaner according to claim 1 , wherein said rotating shaft rotates said absorbing unit when airflow generated by said fan hits said vanes. 3. The air cleaner according to claim 1 , wherein at least part of said absorption unit is made of a transparent member so that said absorption member inside said absorption unit can be visually recognized from outside said absorption unit. 3. The air purifier according to claim 1 , wherein said absorption unit includes a square prism-shaped case portion that houses said absorption member. The air purifier according to claim 1 or 2 , further comprising a dehumidifying section arranged upstream of the airflow generated by the fan than the absorption unit. 3. The air purifier according to claim 1 or 2 , wherein the air cleaning filter is arranged downstream of the airflow generated by the fan from the absorption unit. 7. The air cleaner according to claim 6 , wherein said air cleaning filter is provided at a position above said absorption unit in said housing. 3. An absorbing member powder removal filter arranged downstream of the absorption unit in the airflow generated by the fan and upstream of the air cleaning filter in the airflow generated by the fan. The air purifier described in .

Images