JP2011242096A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner that removes floating dust and semi-floating dust around a head to purify the air.SOLUTION: The air cleaner includes: a body part 10 arranged behind the head of a sleeping person 11; a blast means 12 included in the body 10; an air flow cleaning means 13 included in the body 10; a discharge hole 14 constituted in the body part 10 to discharge a cleaning air flow 16; a discharge hole 14 constituted in the body part 10; and a cover part 17 attached to the body part 10 so as to cover above the head of the sleeping person 11. The cleaning air is discharged along the inside wall surface of the cover part 17. The cover part 17 prevents the semi-floating dust 23 having large particles from falling near the head of the sleeping person 11, while the air-curtain like cleaning air flow 16 prevents the floating dust 22 having small particles from flowing near the head.

Description

  The present invention relates to an air cleaning device that generates an air flow to clean a local space in a room.

  Conventionally, as this type of air purifier, there has been a device that generates a clean airflow on a bed from a blowing portion provided on the head side of the bed and cleans the sleeper's head (for example, a patent) Reference 1).

  In FIG. 3, the air purifier includes a main body 2 that extends from the head side of the bed 1 to the lower side of the bed 1, and a blower 3 (not shown) and an air flow cleaner are disposed inside the main body 2. 4 (not shown) is arranged. The main body portion 2 is provided with a suction portion 5, and a blowing portion 6 is provided on the head side of the bed portion 1 of the main body portion 2. The air from which the dust has been removed by the airflow cleaning means 4 (not shown) built in the main body 2 is blown out from the blowing section 6 as a cleaned airflow 7. The cleaned airflow 7 is caused to flow toward the head of the sleeper 8 on the bed 1. The suspended dust around the head of the sleeping person 8 is carried to the foot side by the cleaning airflow 7 and the head around the sleeping person 8 is cleaned.

  The air flow cleaning means 4 removes dust and adjusts the air quality such as adjusting the temperature and humidity, adding negative ions, and adding fragrance. Since the cleaned airflow 7 with adjusted air quality hits the head of the bedridden 8 and is simultaneously sucked into the bedtime 8 by breathing, the comfort of the bedtime 8 is enhanced.

JP 2000-171067 A

  However, the conventional air cleaning device can remove floating dust that floats for a long time and easily rides on the airflow from the sleeper's head, but it is easy to fall because the particles are large and difficult to get on the airflow, such as pollen. In order to remove the floating dust, since the distance between the cleaning air outlet and the semi-floating dust is long, there is a problem that the cleaning air flow needs to be strengthened.

  For example, sleeping sleepers can be prevented from inhaling dust such as pollen and being awakened by an allergic reaction, or at the moment of awakening when the allergic reaction becomes excessive due to the predominance of parasympathetic nerves. In order to prevent the suction of dust, it is necessary to remove not only floating dust but also semi-floating dust from the nose and mouth around the sleeper's head, so-called facial surface. And the floating dust and the semi-floating dust are so far away that the purified airflow that has been blown out diffuses before the target floating dust and semi-floating dust is blown away, and it is essentially unnecessary to apply the clean airflow There was a problem that the sleeping person felt uncomfortable and sleep was disturbed by the cleaning airflow on the face, nose and mouth of the sleeping person inside.

For this reason, there is only a method to blow out the cleaned airflow with a breeze that does not disturb the sleep of the sleeper. It was. Wearing a mask or the like can prevent a sleeping person from sucking floating dust and semi-floating dust, but wearing the mask itself is uncomfortable and has a problem that sleep is disturbed.

  In addition, the airflow that has been adjusted for air quality immediately flows from the periphery of the sleeping person's head to the foot, and at the same time, the airflow is restored to the original state by mixing with the surrounding air. Therefore, even if the air quality is adjusted by the airflow cleaning means, the air quality around the sleeping person's head does not change greatly, and it is difficult to improve comfort.

  In addition, a conventional air purifier that is commercially available is intended to clean the entire room, and has an airflow suitable for cleaning the entire room. In order to locally clean the sleeper's surroundings, there is a problem that it is difficult to create a locally cleaned air flow. Moreover, in order to clean the whole room, there existed the subject that energy increased compared with local cleaning, and cost raised.

  This invention solves the said conventional subject, and it aims at providing the air purifying apparatus which removes and cleans the floating dust and semi-floating dust around a head, without disturbing sleep of a sleeper. .

  In order to solve the above-mentioned conventional problems, an air cleaning device of the present invention is built in a main body part disposed behind a head of a sleeping person, a blowing means built in the main body part, and built in the main body part. Airflow cleaning means, a blowout port configured in the main body portion for blowing out a cleaned airflow, a suction port formed in the main body portion, and a cover attached to the main body portion so as to cover the upper part of the sleeping person's head And the cleaning airflow is blown out along the inner wall surface of the cover portion.

  In this way, by providing a cover so as to cover the upper part of the head of the sleeping person so as to cover the upper part of the head, it is possible to prevent the semi-floating dust from falling around the sleeping person's head or the nose or mouth of the face surface. it can. In addition, the cleaned airflow is blown out along the inner wall surface of the cover portion, so that the cleaned airflow is a layer along the inner wall surface of the cover portion due to the Coanda effect flowing along the curved surface shape of the fluid and the gentle blowout airflow. It becomes a flow.

  The laminar cleaned airflow is blown out from the opening surface that is open toward the head of the sleeping person on the bottom surface side along the wall surface of the cover part, and the laminar flow is gradually spread around the sleeping person's head. Air curtain flow. Because the air curtain that flows out from the inner side of the cover is, the floating dust that could not be prevented by the upper cover part approaches the head area, but it all flows into the air curtain-like cleaning airflow, and the sleeping person's head I can't get close.

  Since suspended dust is easy to ride on the airflow, it can be separated from the sleeper's head by riding this clean airflow. For this reason, since the clean airflow forms a gentle flow in the form of an air curtain along the cover wall surface, the strong clean airflow hits the sleeper's face surface and the sleeper's sleep is not disturbed, so the sleeper's head circumference Can be cleaned and protected. As described above, semi-floating dust with a large particle size is prevented from falling onto the face surface with a cover placed above the head of the sleeping person. The air flow around the sleeping person's head is prevented by the laminar and gentle air curtain airflow that is blown out, and the cleanliness of the air near the sleeping person's head is protected and the comfort is improved. Can do.

The air purifying apparatus of the present invention does not disturb the sleep of the sleeper because it is not necessary to generate a strong cleaning airflow, and protects the air cleanliness around the head of the sleeper to increase the comfort of the sleeper. be able to.

The perspective view of the air purifying apparatus in Embodiment 1 of this invention. Side view of the air purifying apparatus according to Embodiment 1 of the present invention. The front view which shows typically the external appearance structure of the conventional air purifying apparatus

  1st invention is comprised in the main-body part arrange | positioned at the main-body part arrange | positioned at the back of a sleeping person's head, the ventilation means incorporated in the said main-body part, the airflow cleaning means incorporated in the said main-body part, and cleansed. An air outlet that blows out the conditioned air, a suction port configured in the main body, and a cover that is attached to the main body so as to cover the upper part of the head of the sleeping person. By adopting a configuration in which the air is blown along the inner wall surface, it is possible to prevent the semi-floating dust, in which particles are easily dropped by the cover portion, from falling around the sleeping person's head. On the other hand, suspended dust with a small particle and light mass easily floats in the airflow and floats for a long time, so the Coanda effect along the inner wall surface of the cover and the air curtain-like laminar flow of clean airflow caused by gentle air blown the bedtime. Since the person cannot approach the person's face and is blown away, the intrusion around the sleeping person's head can be prevented.

  In the second aspect of the invention, in particular, the shape of the cover of the air purifier of the first aspect of the invention is such that the inner wall surface from the zenith part to the end of the opening face that opens toward the head of the sleeping person on the bottom side is stepped. By adopting a smooth curved shape, the laminar flow of clean air blown out in the form of an air curtain along the inner wall surface of the cover has a smooth curved shape without steps, so that the fluid can be stepped or steep. If there is a bend, it will peel off from the wall surface and become a turbulent state. The airflow that has become a turbulent state becomes difficult to control the direction and flow velocity of the airflow and cannot form a uniform air curtain-shaped airflow. By using a smooth curved cover part without a step, it is possible to form an air flow that is not easily affected by the step or the curved shape and is difficult to peel off. The air curtain-like laminar airflow can be blown out around the sleeping person's head, and the surrounding area of the sleeping person's head can be protected from floating dust.

  According to a third aspect of the present invention, in particular, the cover part of the air purifying device according to the first or second aspect of the present invention has a substantially hemispherical shape so that the air curtain-like layer is more difficult to peel off. A flowing air current can be blown out around the head of the sleeping person, and the surrounding of the sleeping person's head can be protected from airborne dust.

  In the fourth aspect of the invention, in particular, the attachment position of the air outlet of any one of the first to third aspects of the invention is such that the attachment position of the air outlet is from the top of the cover located at the top of the inner surface of the cover to the bottom of the cover The airflow that blows out reaches the inner wall surface of the cover when the distance between the air outlet and the inner wall surface of the cover is long. Since it diffuses and becomes turbulent, it becomes difficult to control the flow velocity and direction of the airflow, and the airflow loss increases. However, the zenith surface is the inner wall surface of the cover closest to the air outlet, and by bringing the air outlet of the main body close to the cover zenith surface, the cleaned airflow immediately passes from the cover zenith surface to the edge of the opening surface that opens. Due to the Coanda effect, the airflow flows along the airflow, so that a more air curtain-like laminar airflow can be blown out around the head of the sleeping person, and the surrounding of the sleeping person's head can be protected from floating dust.

In the fifth aspect of the invention, in particular, the air purifying device according to any one of the first to fourth aspects of the present invention has a function of generating at least one of an ion generation function and a humidification function. The purified air to be blown to the bedridden can be sent to the bedridden air by adding a humidification function and ion generation function to the cleaned airflow as an additional function by the filter unit, The comfort of the sleeping person can be further improved, and the space around the sleeping person can be kept clean.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a perspective view of an air cleaning device according to a first embodiment of the present invention. FIG. 2 shows an example of a side cross-sectional view when the air purifying apparatus according to the first embodiment is installed. As illustrated in FIGS. 1 and 2, the air purifying apparatus of the present invention is not limited to the case of using a futon directly on the floor and going to sleep, but may be installed as a retrofit to an existing bed. Is possible. Further, it can be configured as an integrated bed type, and the functions of each part can be similarly configured. Moreover, since installation and fixing are not necessarily required, it can be carried depending on the place of use, and the functions of each part can be similarly configured.

In FIG. 1, the futon 25 illustrates an example of a situation in which an air purifier is installed and used.
The sleeping person 11 sleeps on the futon 25 in a lying state and uses the air purifier. The air purifier has a main body 10, and the main body 10 is disposed on the back side of the sleeping person 11. A blower 12 (not shown) and an air flow cleaner 13 (not shown) are arranged in the main body 10. A blow-out port 14 is provided in front of the main body 10, and a suction port 15 (not shown) is provided in the back of the main body 10. A cleaning air flow 16 is blown out from the outlet 14 toward the head of the sleeping person 11.

  A cover portion 17 is provided on the front side of the main body portion 10. As the material of the cover portion, a resin material that is generally used is used, and in this embodiment, a transparent resin of an acrylic material is used.

  The air outlet 14 is provided so as to face the inner surface of the cover portion 17, and the air outlet 14 is provided above the main body portion 10 and near the top of the cover portion 17. The cleaned airflow 16 blown out from the blowout port 14 is blown out so as to flow along the inner wall surface of the top part of the cover part 17. The cover portion 17 is open on the bottom side toward the head of the bedridden 11, and the cleaned airflow that has traveled along the inner wall surface of the cover flows out as a laminar flow in the form of an air curtain from the entire opening surface wall surface. ing.

  FIG. 2 shows a side cross-sectional view of the air cleaning device according to Embodiment 1 of the present invention. In FIG. 2, the cover portion 17 is arranged so as to cover the upper part of the head of the lying sleeper 11 and includes the eyes, nose, and mouth of the sleeper 11 that causes an allergic reaction by contact with an allergen such as pollen. The entire head is hidden behind the cover 17 when viewed from above.

  The main body 10 is provided with a blowing means 12 and an air flow cleaning means 13. A blowing port 14 is provided on the front surface of the main body 10, and a suction port 15 is provided on the back surface of the main body 10. A cleaning air flow 16 is blown out from the outlet 14.

The cover 17 has a smooth curved shape with no step on the inner wall surface from the top of the cover to the end of the opening that opens toward the sleeping person's head on the bottom side. Is composed of parts having a substantially hemispherical shape. In addition, if the cover part 17 has the smooth curve shape without a level | step difference, peeling of the cleaning airflow 16 will be suppressed and it will laminate and form an air curtain. The cover part 17 does not need to be an integral part, and need not necessarily be a single part. Even if it is composed of a plurality of parts, it is only necessary to form a smooth curved shape having no step.

  Further, the material of the cover portion 17 may be formed with a smooth curved shape, and in this embodiment, an example using a resin component is shown, but the present invention is limited to a resin component such as acrylic. It is not necessary to be able to maintain a smooth shape such as aluminum parts, iron parts, copper parts, or carbon-based carbon fiber materials, and the performance of the present invention changes. It is not a thing.

  The outlet 14 is attached to an end portion of the opening surface that opens from the zenith portion 19 inside the cover portion 17 located on the uppermost inner surface of the cover portion 17 toward the head of the sleeping person 11 on the bottom surface side 20 of the cover portion 17. It is set as the position which blows off along. The cleaning airflow 16 blown out from the outlet 14 generates a laminar airflow in the form of an air curtain 21 that flows along the inner wall surface of the cover portion 17. Further, floating dust 22 is suspended around the cover portion 17. At the same time, semi-floating dust 23 is falling from above the cover portion 17.

  About the air purifier comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, the sleeping person 11 stays lying on the futon 25. When the air cleaning device is manually activated, the air blowing means 12 operates. At this time, in this Embodiment, it is set as the structure which carries out the start setting of the air purifier by the sleeper 11 or a 3rd person operating manually, However, The bed state which became the lying state of the futon 25 of the sleeper 11 is set. The state to be confirmed is composed of an infrared sensor group consisting of a plurality of elements inside the main body portion 10 of the air purifier and a polygonal Fresnel lens designed to have multiple focal points on the front surface of the infrared sensor. It may be configured to automatically start, stop, and set by detecting with human sensors the discrimination of the sleeping position of the sleeping person 11 and the presence of the bed, the position of the head, and the like.

  Human sensors are not limited to infrared sensors, but are not limited in principle, such as ultrasonic sensors, light-reflective distance sensors, and image sensors, and may be configured using sensors based on other principles. It is.

  Since the cover portion 17 covers the upper part of the head of the sleeping person 11, the semi-floating dust 23 about to fall around the head of the sleeping person 11 hits the outer surface of the covering part 17, so that the semi-floating dust 23 falls on the sleeping person 11. It will not fall to the nose or mouth around the head and face.

  On the other hand, air is sucked in from the suction port 15 by the air blowing means 12, and the air is cleaned by the airflow cleaning means 13, and then the cleaned airflow 16 from the blowout port 14, and the bedside 20 on the bottom side 20 from the zenith 19. The inner wall surface up to the end of the opening surface that opens toward the head is blown out in a laminar flow in the form of an air curtain 21 along the cover inner wall surface of the cover portion 17 having a smooth curved shape without a step. If there is a stepped portion or a sharp bend, the fluid will be peeled off from the wall surface and become a turbulent state. The airflow that has become a turbulent state becomes difficult to control the direction and flow velocity of the airflow and cannot form a uniform air curtain-shaped airflow. At the same time, sudden bending, squeezing, and enlarging result in loss of fluid energy. For this reason, the cover portion 17 formed with a smooth curved shape without a step is less likely to be peeled off due to the influence of the component shape, and can form an air flow with little energy loss.

Further, the cleaned air flow 16 blown from the position where the distance between the air outlet 14 and the inner wall surface of the cover portion 17 is far away depends on the air resistance and the air blowing state due to the nature of the fluid jet before reaching the vicinity of the inner wall surface of the cover portion 17. Since it diffuses and becomes a turbulent flow, it becomes difficult to control the flow velocity and the wind direction of the cleaning airflow 16, and the laminar flow control of the air curtain 21 cannot be performed. Since the energy loss of the airflow increases, it becomes impossible to protect the head around the sleeping person 11.

  However, the zenith portion 19 is the inner wall surface of the cover portion 17 closest to the air outlet 14, and the cleaning air current 16 is blown from the air outlet 14 by bringing the air outlet 14 of the main body portion closer to the zenith portion 19 of the cover portion 17. Immediately after that, the air current flows along the inner wall surface of the zenith portion 19 of the cover portion 17 and flows from the zenith portion 19 to the open end portion of the bottom surface 20 along the shape of the fluid component surface. It can flow along the inner wall surface of the cover part 17. The cleaned airflow 16 that has flowed along the inner wall surface of the cover portion 17 forms a laminar airflow in the form of an air curtain 21. The air curtain 21-like laminar airflow is blown out toward the nose and mouth around the head of the sleeping person 11 and the face.

  The cleaned airflow 16 that flows along the inner wall surface of the cover portion 17 and becomes a laminar flow in the form of the air curtain 21 is the airflow of the air curtain 21 that has a gentle flow velocity from the entire opening surface on the bottom surface side 20 of the cover portion 17. Flows out. The floating dust 22 is dust having a relatively small particle diameter. For example, viruses and allergens with small particle diameters are light in mass, so they float for a long time without falling, and have a slight flow rate due to the airflow of the sleeper 11 and the airflow of a recent house ventilation system. It tries to get close to the head of the bedridden 11 in a small breeze.

  However, since the cleaning airflow 16 is an air curtain 21-like airflow that flows from the entire opening surface, all the floating dust 22 that approaches the periphery of the head of the sleeping person 11 collides with the cleaning airflow 16. Since the suspended dust 22 is easy to ride on the airflow because of its light mass, it is separated from the sleeper 11 around the head by the flow of the cleaned airflow 16. Therefore, it is impossible to approach the face surface around the head of the sleeper 11 by the Coanda effect and the laminar cleaning airflow 16 like the air curtain 21 by the gentle blowout along the inner wall surface of the cover portion 17 and blown away. Therefore, the intrusion around the head of the sleeping person 11 can be prevented, and the cleanliness around the head of the sleeping person 11 is protected.

  By forming the air curtain 21-like cleaning airflow 16, the cleaning airflow 16 having a high flow rate and pressure, that is, a so-called large airflow is not necessary, and therefore the cleaning airflow 16 having a large airflow is hit. The suspended dust 22 can be removed from the head periphery without disturbing the sleep of the sleeper 11. Since both the floating dust 22 and the semi-floating dust 23 are removed from the sleeper 11 around the head, an allergic reaction caused by pollen, for example, can be prevented.

  So-called allergic reactions such as itchy eyes, runny nose, sore throat, itching and inflammation of the nose may cause floating dust 22 or semi-floating dust 23 to adhere to the eyes, or cause a reaction by aspiration from the nose or mouth. Most of them. Therefore, the allergic reaction can be suppressed by preventing the floating dust 22 and semi-floating dust 23 from entering the periphery of the head and the face surface by the cleaning airflow 16 in the form of the air curtain 21. For this reason, the sleeping person 11 can cause an allergic reaction during sleeping and can wake up, or can avoid a situation in which the sleeping person 11 is not able to sleep or sleep, and the comfort of the sleeping person 11 can be improved.

  Further, the air flow cleaning means 13 removes dust with a filter component and simultaneously adjusts the air quality such as humidification adjustment, addition of negative ions, and addition of fragrance.

  The filter component is composed of a high-performance filter such as a HEPA filter that cleans inhaled air. In this embodiment, a filter that removes high-performance dust with a HEPA filter is used. However, if the floating dust 22 and the semi-floating dust 23 are removed and purified air is blown to the blowing means. In addition, other principles and coarse filters may be used, and the present invention is not limited to this embodiment.

In addition, an ion generator that generates ions by applying a voltage is built in the main body unit 10 to adjust humidity humidification or to adjust the air quality by adding negative ions. This ion generator is equipped with a humidifying function that improves the humidification of the ion generation or air humidity.

  As the air humidification method, for example, a humidification method using a Peltier element is used, and the labor of water supply is omitted (not shown). In addition, the aroma is a commercially available product (not shown) that humidifies by an ultrasonic method, and the air quality is improved by adding humidification, ion addition, and aroma component to the cleaned airflow 16.

  In this embodiment, an ion generator equipped with an ion addition function by voltage is used for ion addition and humidification, and an ultrasonic humidification function is added for adding aroma components. However, the present invention is limited to this. Instead, the humidification function, ion addition function, and fragrance component addition function of other principles may be used and configured.

  The clean air flow 16 with the air quality adjusted is stratified by a child flowing along the inner wall surface of the cover part 17, but the cover part 17 does not allow the inside of the cover part 17 and the ambient air outside to intermingle. Since it is prevented, the air quality of the purified air flow 16 does not return to the surrounding air state inside the cover portion 17.

  Further, since the cleaned air flow 16 flowing out from the opening surface of the cover portion 17 is a laminar air flow 18 having a gentle flow velocity, the cleaned air flow 16 stays around the head of the sleeping person 11 for a long time. As a result, the air quality around the head of the sleeping person 11 becomes substantially the same as the air quality of the cleaned air current 16 adjusted by the air current cleaning means 13, and the comfort of the sleeping person 11 is further enhanced.

  Subsequently, the sleeper 11 wakes up after sleeping. Since the parasympathetic nerve is dominant at the moment of waking, the allergic reaction becomes excessive. However, since the area around the head of the sleeping person 11 continues to be cleaned from sleep, no allergic reaction occurs.

  Therefore, the sleeping person 11 can sleep well without being disturbed by sleep, and is awakened clearly and rises after the sympathetic nerve becomes dominant. Therefore, you can get up comfortably and have a comfortable life.

  The configurations in the above-described embodiments can be used in appropriate combinations as needed, and are not limited to the configurations of the embodiments themselves.

  As described above, the air cleaning device according to the present invention can be applied to a device that cleans a local space with an air flow.

DESCRIPTION OF SYMBOLS 1 Bed part 2 Body part 4 Airflow cleaning means 5 Suction part 6 Blowout part 7 Cleaning airflow 8 Sleeping person 10 Main body part 11 Sleeping person 12 Blowing means 13 Airflow cleaning means 14 Air outlet 15 Air inlet 16 Cleaning airflow 17 Cover Part 19 zenith part 20 bottom side 21 air curtain 22 floating dust 23 semi-floating dust 24 cover part zenith part 25 futon

Claims (5)

A main body part arranged behind the head of the sleeping person, a blowing means built in the main body part, an air flow cleaning means built in the main body part, and a blowout configured to be formed in the main body part and blowing out a cleaned air flow A mouth portion, a suction port configured in the body portion, and a cover portion attached to the body portion so as to cover the upper part of the sleeping person's head, and the cleaning airflow is along an inner wall surface of the cover portion Air purifier that is configured to be blown out. The air purifier according to claim 1, wherein the cover portion is configured with a smooth curved shape having no step on an inner wall surface from the zenith portion to the end portion of the opening surface that opens toward the sleeping person's head on the bottom surface side. . The air purifier according to claim 1, wherein the cover portion is configured in a substantially hemispherical shape. The attachment position of the blowout port is configured to be a position where it blows out from the top of the cover located at the uppermost part of the inner surface of the cover portion along the end of the opening surface that opens toward the head of the sleeping person on the bottom surface side of the cover portion. The air purifier according to any one of claims 1 to 3. The air cleaning device according to any one of claims 1 to 4, wherein the main body portion has at least one function selected from an ion generation function, a humidification function, and an aroma function.