JP2020199149A - Air cleaning device - Google Patents

Abstract

To supply clean air from which a virus has been removed around persons even in an atmosphere where the virus is present.SOLUTION: There is provided an air cleaning device 10 according to the present disclosure, which is portable and comprises: a housing 20 having an inflow port 23A for inflow of outside air and an outflow port for outflow of inside air, in which a channel 24 for communicating the inflow port 23A and the outflow port is provided; a virus adsorbing material 30 which is provided at a position where the channel 24 is partitioned into the inlet port 23A side and the outlet port side, and which can adsorb and remove a virus; and a pre-adsorption sensor 41 which is provided at a position facing the outside air or a position facing the inside air before passing through the virus adsorbing material 30 and can detect a virus; a fan 50 for feeding the inside air after passing through the virus adsorbing material 30 to the outlet; a battery 60 capable of supplying electric power to the fan 50; and a control unit 90 which operates the fan 50 in a state where a virus is detected by the pre-adsorption sensor 41, and stops the fan 50 in a state where a virus is not detected by the pre-adsorption sensor 41.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an air purifier.

Conventionally, as an adsorption removing material for adsorbing and removing influenza virus, those described in Japanese Patent Application Laid-Open No. 2013-635 (Patent Document 1 below) are known. This adsorption removing material uses a carbonic material obtained by carbonizing wood selected from the group consisting of oak, oak, pine, sugi, Acer mono, and Quercus acutissima at a temperature of 500 to 800 ° C. On the other hand, as an air purification device that holds chlorine-based compounds in the air as bound chlorine on a filter to deodorize and sterilize, those described in JP-A-2017-209225 (Patent Document 2 below) are known.

Japanese Unexamined Patent Publication No. 2013-635 JP-A-2017-209225

When the above adsorption removing material is applied to the above air purification device, an air purification device that adsorbs and removes influenza virus and deodorizes and sterilizes chlorine compounds in the air can be obtained. However, since there is no means for detecting influenza virus, the device must be constantly operated regardless of the presence or absence of the virus, which increases power consumption. In addition, since it is not a portable device, it is not possible to receive clean air without viruses when going out.

The air purifier of the present disclosure is a portable air purifier, which has an inflow port for inflowing outside air and an outflow port for outflowing inside air, and has an internal flow path for communicating the inflow port and the outflow port. A virus adsorbent that is provided at a position that divides the flow path into the inlet side and the outlet side and can adsorb and remove the virus, and a position that faces the outside air or the above. A pre-adsorption sensor that is provided at a position facing the inside air before passing through the virus adsorbent and can detect the virus, a fan that sends the inside air after passing through the virus adsorbent to the outlet, and the fan. A battery capable of supplying power to the device and a control unit that operates the fan when the virus is detected by the pre-adsorption sensor and stops the fan when the virus is not detected by the pre-adsorption sensor. It is an air purifier equipped.

According to the present disclosure, it is possible to supply clean air from which the virus has been removed to the surroundings of a person even in an atmosphere in which the virus is present.

FIG. 1 is a partially cutaway sectional view showing the internal structure of the air purifier. FIG. 2 is a block diagram showing the electrical configuration of the air purifier. FIG. 3 is a diagram showing a usage example of an air purifier.

[Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
(1) The air purifier of the present disclosure is a portable air purifier, which has an inflow port for inflowing outside air and an outflow port for outflowing inside air, and a flow for communicating the inflow port and the outflow port. A housing provided with a path inside, a virus adsorbent provided at a position for partitioning the flow path into the inlet side and the outlet side, and capable of adsorbing and removing viruses, and facing the outside air. A pre-adsorption sensor that is provided at a position or a position facing the inside air before passing through the virus adsorbent and capable of detecting the virus, and a fan that sends the inside air after passing through the virus adsorbent to the outlet. A battery capable of supplying power to the fan, and a control unit that operates the fan when the virus is detected by the pre-adsorption sensor and stops the fan when the virus is not detected by the pre-adsorption sensor. It is an air purifier equipped with.

When a virus is detected by the pre-adsorption sensor, the fan operates, and when the pre-adsorption sensor does not detect the virus, the fan stops, so that the power consumption of the battery can be suppressed. As a result, even a portable air purifier does not have to worry about battery power consumption. In addition, since it is portable, clean air from which the virus has been removed is supplied around the person even in an atmosphere where the virus is present, and virus infection is prevented.

(2) The control unit includes a post-adsorption sensor that is provided at a position facing the inside air after passing through the virus adsorbent and can detect the virus, and a notification unit that notifies that the virus is abnormal. When the virus is detected by the sensor after adsorption, it is preferable to notify the notification unit that the virus is abnormal.

If a virus is detected in the inside air after passing through the virus adsorbent, it is possible that the virus has not been removed normally by the virus adsorbent. In that case, the air purifier can be stopped by notifying the abnormality by the notification unit.

(3) A plurality of solenoid valves provided on the inlet side and the outlet side of the virus adsorbent and capable of opening and closing the flow path are provided, and the control unit is in a state where the fan is operating. It is preferable to open the plurality of solenoid valves and close the plurality of solenoid valves when the fan is stopped.

When the fan is operating, it is necessary to keep multiple solenoid valves open so as not to obstruct the flow of inside air. On the other hand, since it is not necessary to let the inside air flow when the fan is stopped, deterioration of the virus adsorbent can be suppressed by closing a plurality of solenoid valves.

(4) The housing has a U-shape that can be hung on the neck, and the inflow port is arranged at a folded-back portion located between one end and the other end of the housing, and the outflow port. Is preferably arranged at at least one of one end and the other end of the housing.

Hanging the housing around the neck makes it easier to carry the air purifier, and at least one outlet is located near the person's mouth, making it easier to breathe clean air through the mouth.

[Details of Embodiments of the present disclosure]
A specific example of the air purifier 10 of the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

<Air purifier>
As shown in FIGS. 1 and 2, the air purifier 10 controls the housing 20, the virus adsorbent 30, the sensor 40, the fan 50, the battery 60, the solenoid valve 70, the notification unit 80, and the like. It is configured to include a part 90. The air purifier 10 has a U-shape as a whole, and as shown in FIG. 3, it is a handy type air purifier 10 that can be carried around the neck. Since the internal structure of the air purifier 10 is symmetrical, the internal structure on the left side of the drawing will be described as a representative below, and the description of the internal structure on the right side of the drawing may be omitted.

<Case>
The housing 20 has a U-shape that can be hung around the neck, and is a case made of synthetic resin, a case made of aluminum alloy, or the like. The housing 20 has one end 21, the other end 22, and a folded-back portion 23 located between the one end 21 and the other end 22. The housing 20 has a hollow structure, and a flow path 24 is provided inside the housing 20.

One end 21A is provided with a one-side outlet 21A, and the other end 22 is provided with another outlet 22A. The folded-back portion 23 is provided with an inflow port 23A. The inflow port 23A is an opening through which outside air flows in, and the outflow ports 21A and 22A are openings through which inside air flows out. The outside air is the air outside the housing 20, and the inside air is the air inside the housing 20.

The flow path 24 includes a one-sided flow path 24A from the inflow port 23A to the one-sided outflow port 21A and a other-sided flow path 24B from the inflow port 23A to the other-side outflow port 22A. The inflow port 23A is arranged so that the one-side flow path 24A and the other-side flow path 24B are equidistant. The one-side flow path 24A communicates the inflow port 23A and the one-side outflow port 21A, and the other-side flow path 24B communicates the inflow port 23A and the other-side outflow port 22A.

<Virus adsorbent>
One virus adsorbent 30 is provided in each of the one-side flow path 24A and the other-side flow path 24B. The virus adsorbent 30 is provided at a position that partitions the one-side flow path 24A into the inflow port 23A side and the one-side outflow port 21A side. Therefore, the air that has flowed into the one-side flow path 24A from the inflow port 23A passes through the virus adsorbent 30 and then heads for the one-side outlet 21A, and is discharged from the one-side outlet 21A to the outside of the housing 20. The virus. The virus adsorbent 30 is, for example, a virus adsorption filter using hydroxyapatite. For example, a protein existing on the surface of an influenza virus binds to hydroxyapatite, so that the influenza virus in the air is adsorbed on the virus adsorbent 30 and removed.

<Battery>
Although not shown, the battery 60 is housed inside the housing 20, and is, for example, an alkaline dry battery, a manganese dry battery, a nickel hydrogen battery, a lithium battery, or the like. Further, the battery 60 may be a power storage element in which power is supplied using a USB cable or the like.

<Sensor>
The sensor 40 includes a pre-adsorption sensor 41 provided at a position facing the outside air through the inflow port 23A, and a post-adsorption sensor 42 provided at a position facing the inside air after passing through the virus adsorbent 30. A pair of post-adsorption sensors 42 are provided corresponding to the pair of virus adsorbents 30. The sensor 40 is a sensor in which a virus can be detected by supplying electric power from the battery 60, and for example, a detection element in which graphene is modified with a sugar chain is used.

<Fan>
The fan 50 includes a pair of pre-suction fans 51 arranged on the downstream side of the pre-suction sensor 41 and a pair of post-suction fans 52 arranged on the downstream side of the pair of post-suction sensors 42. The pair of post-suction fans 52 are provided corresponding to the pair of post-suction sensors 42. The fans 51 and 52 operate when power is supplied from the battery 60, and stop when the power supply is stopped. The pre-adsorption fan 51 sends the air that has flowed into the one-side flow path 24A from the inflow port 23A toward the virus adsorbent 30. After adsorption, the fan 52 sends the air that has passed through the virus adsorbent 30 toward one end 21 and causes the air to flow out of the housing 20 from the one-side outlet 21A.

<Solenoid valve>
The solenoid valve 70 includes a pre-adsorption solenoid valve 71 provided on the upstream side of the virus adsorbent 30, and a post-adsorption solenoid valve 72 provided on the downstream side of the virus adsorbent 30. Each of the solenoid valves 71 and 72 operates by being supplied with electric power from the battery 60, and can open and close the one-side flow path 24A. Air can pass through the virus adsorbent 30 when the solenoid valves 71 and 72 are open, but one side flow path 24A on the upstream side and the downstream side of the virus adsorbent 30 when the solenoid valves 71 and 72 are closed. Is closed, so that air cannot pass through the virus adsorbent 30.

<Notification unit>
The notification unit 80 notifies that an abnormality occurs when an abnormality occurs, and the notification means may be sound, vibration, light, or a combination thereof or the like. The notification unit 80 operates by being supplied with electric power from the battery 60, and executes the notification means.

<Electrical configuration of air purifier>
Next, the electrical configuration of the air purifier 10 will be described. As shown in FIG. 2, the electrical configuration of the air purifier 10 includes a control unit 90, a solenoid valve 70, a fan 50, a sensor 40, a notification unit 80, and a battery 60. The overall operation control of the air purifier 10 is performed by the control unit 90.

When a virus such as influenza virus is detected by the pre-adsorption sensor 41 of the sensors 40, a detection signal is sent to the control unit 90. The control unit 90 sends an open / close signal to the solenoid valve 70 based on the detection signal from the pre-suction sensor 41. The solenoid valve 70 performs an opening / closing operation based on an opening / closing signal from the control unit 90. The control unit 90 supplies electric power from the battery 60 to the fan 50 by, for example, ON / OFF control of the switching element.

When a virus such as influenza virus is detected by the sensor 42 after adsorption among the sensors 40, a detection signal is sent to the control unit 90. The control unit 90 sends a notification signal to the notification unit 80 based on the detection signal from the sensor 42 after adsorption. The notification unit 80 performs a notification operation based on the notification signal from the control unit 90.

<Operation of air purifier>
Next, the operation of the air purifier 10 will be described. In the following, the operation in the one-side flow path 24A will be described as a representative, and the description of the operation in the other side flow path 24B will be omitted. When the virus is not detected by the pre-adsorption sensor 41, the air purifier 10 is in the standby state, so that the power consumption can be suppressed. That is, the air purifier 10 operates only when a virus is detected by the pre-adsorption sensor 41.

When a virus is detected by the pre-adsorption sensor 41, the pre-adsorption fan 51 and the post-adsorption fan 52 operate to start blowing air. Then, the outside air is taken into the one-side flow path 24A from the inflow port 23A, and the air is sent to the virus adsorbent 30 by the pre-adsorption fan 51. In the process of passing the air through the virus adsorbent 30, the virus in the air is adsorbed by the virus adsorbent 30 and removed. The clean air from which the virus has been removed is sent to one end 21 by the fan 52 after adsorption, and is blown out from the one-side outlet 21A to the outside of the housing 20. As shown in FIG. 3, the clean air blown out to the outside of the housing 20 is supplied around a person to prevent virus infection.

When the amount of virus adsorbed by the virus adsorbent 30 becomes saturated, or when some abnormality occurs in the virus adsorbent 30 and the virus cannot be adsorbed, the virus is detected by the sensor 42 after adsorption, and the notification unit 80 detects the abnormality. An alarm is issued to indicate. When an alarm occurs, the operation of the air purifier 10 is stopped. When the air purifier 10 is not used, the pre-adsorption solenoid valve 71 and the post-adsorption solenoid valve 72 are closed to close the one-sided flow path 24A in order to prevent the virus adsorbent 30 from deteriorating.

<Other embodiments>
(1) Although the pre-adsorption sensor 41 is provided at a position facing the outside air in the above embodiment, the pre-adsorption sensor may be provided at a position facing the inside air before passing through the virus adsorbent 30.

(2) Although the flow path 24 is composed of the one-side flow path 24A and the other-side flow path 24B in the above embodiment, the flow path may be composed of only the one-side flow path 24A.

(3) Although the housing 20 is U-shaped in the above embodiment, it may be an I-shaped or T-shaped housing, and in that case, a strap may be used to hang it from the neck.

10 ... Air purifier 20 ... Housing 21 ... One end 21A ... One side outlet 22 ... The other end 22A ... Other side outlet 23 ... Folded part 23A ... Inflow port 24 ... Flow path 24A ... One side flow path 24B ... Other side flow path 30 ... Virus adsorbent 40 ... Sensor 41 ... Pre-adsorption sensor 42 ... Post-adsorption sensor 50 ... Fan 51 ... Pre-adsorption fan 52 ... Post-adsorption fan 60 ... Battery 70 ... Electromagnetic valve 71 ... Pre-adsorption electromagnetic valve 72 ... After adsorption electromagnetic valve 80 ... Notification unit 90 ... Control unit

Claims (4)

It ’s a portable air purifier,
A housing having an inflow port for inflowing outside air and an outflow port for outflowing inside air, and an internal flow path for communicating the inflow port and the outflow port.
A virus adsorbent that is provided at a position that divides the flow path into the inlet side and the outlet side and can adsorb and remove the virus.
A pre-adsorption sensor that is provided at a position facing the outside air or a position facing the inside air before passing through the virus adsorbent and can detect the virus.
A fan that sends the inside air after passing through the virus adsorbent to the outlet,
A battery that can supply power to the fan and
An air purifier including a control unit that operates the fan when the virus is detected by the pre-adsorption sensor and stops the fan when the virus is not detected by the pre-adsorption sensor. A post-adsorption sensor that is provided at a position facing the inside air after passing through the virus adsorbent and can detect the virus.
It is equipped with a notification unit that notifies that it is abnormal.
The air purifier according to claim 1, wherein the control unit notifies the notification unit that the virus is abnormal when the virus is detected by the adsorption sensor. A plurality of solenoid valves provided on the inlet side and the outlet side of the virus adsorbent and capable of opening and closing the flow path are provided.
The air according to claim 1 or 2, wherein the control unit opens the plurality of solenoid valves when the fan is operating and closes the plurality of solenoid valves when the fan is stopped. Cleaner. The housing has a U-shape that can be hung around the neck.
The inflow port is arranged at a folded-back portion located between one end and the other end of the housing.
The air purifier according to any one of claims 1 to 3, wherein the outlet is arranged at at least one of one end and the other end of the housing.

Images