JP2019173991A - Air intake system - Google Patents

Abstract

To provide an air intake system that can efficiently and stably radiate light to a photocatalyst filter at ventilation.SOLUTION: An intake air duct 2 for communicating between indoor and outdoor is provided with: a photocatalyst filter 5; a wind power generation part 6 for generating power with ventilating air from an outdoor side to an indoor side in the intake air duct 2; and a light source 7 for radiating light to the photocatalyst filter 5 by being fed from the wind power generation part 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an intake system that purifies air taken in from an intake air passage that communicates outdoors and indoors.

  As the above intake system, for example, there is a ventilator disclosed in Patent Document 1. This ventilation device is fixed to the outer surface of the outer wall so as to face the ventilation opening of a ventilation passage (an example of an intake air passage) formed through the outer wall of the building. The ventilation device includes a photocatalyst filter including activated carbon and titanium oxide as a photocatalyst, and a plurality of slats that prevent intrusion of rainwater in a state of covering the outer surface side of the photocatalyst filter, on a mounting member attached to the outer surface of the outer wall. And a hood that covers the upper half of the outer surface of the garage and prevents rainwater from entering. The wings of the gallery are configured so that the surface thereof is formed into a mirror surface, and the reflected light of sunlight reflected by the surface of the wings is irradiated to the photocatalytic filter. The hood has a transparent portion through which sunlight passes over substantially the entire surface.

  Then, when the photocatalytic filter is irradiated with sunlight reflected by the wings and reflected by the blades of the garlic, the photocatalytic titanium oxide undergoes a photoexcitation reaction, and dirt and odor adsorbed on the photocatalytic filter, Hazardous substances such as bacteria are oxidatively decomposed. Eventually, harmful substances are decomposed into harmless carbon dioxide and water and emitted, and harmful substances attached to the photocatalytic filter are removed.

JP 2000-121113 A

  Conventionally, since a ventilator is attached to the outer surface of the outer wall of the building, dirt is likely to adhere to the hood of the ventilator and the louver of the garage, and the light transmittance of the hood is reduced as the dirt adheres. At the same time, the amount of reflected light from the slats decreases. This causes a decrease in the amount of sunlight irradiated to the photocatalytic filter and a variation in the distribution of irradiation light, thereby reducing the oxidative decomposition action of harmful substances due to the photoexcitation reaction of titanium oxide. In addition, since the photocatalytic filter is irradiated with sunlight, the photoexcitation reaction of titanium oxide is reduced or stopped during rainy weather or at night, and there is a disadvantage that the removal time of harmful substances is limited.

  In view of this situation, a main problem of the present invention is to provide an intake system that can irradiate light efficiently and stably with respect to a photocatalytic filter.

  A first characteristic configuration of the present invention includes a photocatalytic filter in an intake air passage that communicates outdoors and indoors, a wind power generator that generates power by ventilation from the outdoor side to the indoor side in the intake air passage, and the wind power generator And a light source that irradiates light to the photocatalytic filter by power feeding from the light source.

According to the above configuration, the photocatalytic filter disposed in the intake air passage adheres and removes dirt, odors, bacteria, and other harmful substances in the air that is sucked into the indoor side from the outdoor side via the intake air passage. Can do. When the photocatalyst filter is irradiated with light from a light source, the photocatalyst contained in the photocatalyst filter causes a photoexcitation reaction, and harmful substances adhering to the photocatalyst filter are oxidized and decomposed. Eventually, harmful substances are decomposed into harmless carbon dioxide and water and emitted, and harmful substances attached to the photocatalytic filter are removed.
In addition, since the light source emits light by power feeding from the wind power generation unit that generates power by ventilation in the intake air passage, light is irradiated from the light source to the photocatalytic filter during ventilation. Thereby, light is irradiated at the time of the ventilation which a harmful substance adheres to a photocatalyst filter most easily, and light can be stably irradiated to a photocatalyst filter using ventilation regardless of day and night.
Therefore, since harmful substances adhering to the photocatalytic filter can be efficiently removed, clean air from which harmful substances have been removed can be stably supplied indoors.

  According to a second characteristic configuration of the present invention, the photocatalytic filter, the light source, and the wind power generation unit are assembled to an indoor unit that is detachably provided in an exposed state on the indoor side with respect to the intake air passage. In the point.

According to the above configuration, the indoor unit in which the photocatalytic filter, the light source, and the wind power generation unit arranged in the intake air passage are assembled can be taken out from the intake air passage to the indoor side, and the indoor unit Since a part of is exposed to the indoor side, the indoor unit can be easily taken out.
Therefore, maintenance and replacement work for the photocatalytic filter, the light source, and the wind power generation unit can be performed efficiently and easily on the indoor side.

  According to a third characteristic configuration of the present invention, the photocatalytic filter, the light source, and the wind power generation unit are assembled to the indoor unit in a state in which the photocatalytic filter, the light source, and the wind power generation unit are arranged in this order from the indoor side to the outdoor side. There is in point.

  According to the said structure, the maintenance with respect to a photocatalyst filter can be efficiently and easily implemented by arrange | positioning the photocatalyst filter whose maintenance frequency is higher than a light source and a wind power generation part in the innermost indoor side of an intake air path. Moreover, since the light source is disposed on the outdoor side of the photocatalytic filter, it is easy to set the photocatalytic filter and the light source in an appropriate arrangement relationship, and light can be reliably irradiated to the entire photocatalytic filter. Furthermore, the wind power generation unit having the longest overall length in the direction of the air path axis can be easily arranged using the space on the outdoor side of the light source in the intake air path.

  The 4th characteristic structure of this invention exists in the point by which the light leakage part which leaks the light of the said light source to an indoor side is provided in the indoor side site | part of the said indoor side unit.

  According to the above configuration, the wind power generation unit normally generates power through ventilation by visually confirming that the light leakage part provided in the indoor side portion of the indoor unit is brightened by the leaked light, and feeding from the wind power generation unit Thus, it can be easily confirmed that the light source emits light normally.

  According to a fifth feature of the present invention, the indoor unit has a first body unit in which the wind power generation unit is assembled, a second body unit in which the photocatalytic filter and the light source are assembled, A third main body unit that is detachable from the indoor side with respect to the intake air passage, and the first main body unit and the second main body unit are detachably assembled to the third main body unit. It is in the point.

  According to the above configuration, the indoor unit can be easily configured simply by assembling the separately configured first main body unit and second main body unit to the third main body unit serving as the outer casing. Further, by taking out the first main body unit and the second main body unit from the third main body unit, a wind power generation unit assembled to the first main body unit, a photocatalytic filter assembled to the second main body unit, and Maintenance for the light source can be performed efficiently and easily.

  A sixth characteristic configuration of the present invention is that the light source is an LED light source, and the LED light source is disposed obliquely with respect to a filter surface of the photocatalytic filter.

  According to the said structure, compared with the case where an LED light source is arrange | positioned with the attitude | position along a orthogonal direction with respect to the filter surface of a photocatalyst filter, for example, the whole filter surface of a photocatalyst filter is irradiated without omission with few LED light sources. be able to.

Sectional drawing at the time of air passage opening which shows the structure of the intake system of this invention Cross-sectional view of air intake block showing the configuration of the intake system Cross section of photocatalyst unit Front view of indoor unit Exploded sectional view of indoor unit Expanded sectional view of the front of the indoor unit Enlarged perspective view of the front of the indoor unit

Embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 and 2 show that an intake air passage 2 that communicates the outdoors and indoors (indoors) is formed on a concrete outer wall 1 of a building such as an apartment. An indoor unit A having an intake system is disposed, and an outdoor unit B for preventing intrusion of rainwater is disposed on the outdoor side of the intake air passage 2.
The intake air passage 2 has a circular first through hole 1a that is formed through the outer wall 1 at an air passage formation position, and a circular passage that is formed through the indoor wall finishing material 3 of the outer wall 1 at an air passage formation position. By inserting a resin-made cylindrical intake sleeve 4 over the second through hole 3a, an internal space of the intake sleeve 4 communicating with the interior and the exterior is formed.
In FIG. 1, the flow of intake air is indicated by arrows.

  In the present embodiment, ventilation is obligatory for 24 hours because the building is a highly airtight building where people live or stay. Ventilation includes type 1 ventilation, type 2 ventilation, and type 3 ventilation. 1st type ventilation is ventilation which performs both the intake from the outdoors, and the exhaust from the indoor with a ventilator. The second type ventilation is ventilation in which intake from outside is performed by a ventilator and exhaust from indoors is performed by natural exhaust. The third type ventilation is ventilation in which intake from the outside is performed by natural intake and exhaust from the interior is performed by a ventilator. In this embodiment, the third type ventilation is adopted.

  The intake system includes a photocatalyst filter 5, a wind power generation unit 6 that generates power by ventilation from the outdoor side to the indoor side in the intake air passage 2, and a light source 7 that irradiates the photocatalyst filter 5 with power supplied from the wind power generation unit 6. And comprising. The photocatalytic filter 5, the light source 7, and the wind power generation unit 6 of the intake system are arranged in this order from the indoor side to the outdoor side of the intake air passage 2. Further, the photocatalytic filter 5, the light source 7, and the wind power generation unit 6 of the intake system are assembled in an indoor unit A that is detachably provided so as to be exposed indoors with respect to the intake air passage 2.

The photocatalytic filter 5 is configured by carrying a photocatalyst on a sheet-like filter base material provided with activated carbon. As a photocatalyst material used for the photocatalytic filter 5, when light having an energy larger than the energy gap between the conductor and the valence band is irradiated, electrons in the valence band are excited, and the conduction electrons and positive electrons are excited. The substance is not particularly limited as long as it is a substance capable of generating pores.
Specific examples of the photocatalytic material include titanium dioxide, zinc oxide, iron oxide, tungsten oxide, gallium phosphide, molybdenum oxide, ruthenium oxide, and germanium oxide. Among these, platinum-doped type tungsten oxide having high activity in the visible light region can be preferably used.

  The photocatalytic filter 5 disposed in the intake air passage 2 can adsorb and remove dirt, odors, bacteria, and other harmful substances in the air that is sucked into the indoor side from the outdoor side via the intake air passage 2. When light is emitted from the light source 7 to the photocatalytic filter 5, the photocatalyst excites electrons in the valence band to generate conduction electrons and holes, and the conduction electrons react with oxygen in the air. Becomes a superoxide anion. On the other hand, holes react with moisture in the air and become hydroxyl radicals. Since these have high oxidizing power, harmful substances adsorbed on the photocatalytic filter 5 are oxidatively decomposed. Eventually, harmful substances are decomposed into harmless carbon dioxide and water and emitted, and harmful substances adsorbed on the photocatalytic filter 5 are removed.

  The light source 7 may be any light source that activates the photocatalyst, and can be appropriately selected according to the photocatalytic material. For example, when the photocatalytic material is titanium oxide, an ultraviolet light source capable of irradiating ultraviolet light is used. Examples of the ultraviolet light source include an ultraviolet LED, a metal halide lamp, a mercury lamp, and an incandescent lamp. When the photocatalytic material is platinum-doped tungsten oxide, a light source that emits visible light of 400 nm or more is used. Examples of visible light sources include white LEDs, fluorescent lamps, and incandescent lamps. In the present embodiment, the LED light source 7 having an emission wavelength peak of 400 nm or more is preferably used.

As shown in FIGS. 1, 2, and 5, the wind power generation unit 6 uses a plurality of blades 62 provided on a rotation shaft 61 along the air passage axis direction of the intake air passage 2 and rotational energy of the rotation shaft 61. And a power generation motor 63 for converting into electric energy. The blade 62 is disposed on the outdoor side in the intake air passage 2, and the power generation motor 63 is disposed on the indoor side in the intake air passage 2.
The plurality of blades 62 rotate integrally with the rotary shaft 61 by ventilation from the outdoor side to the indoor side in the intake air passage 2. The power generation motor 63 is electrically connected to the electric circuit of the LED light source 7, and the electricity generated by the power generation motor 63 is supplied to the electric circuit of the LED light source 7. The LED light source 7 emits light by feeding from the power generation motor 63 and irradiates the photocatalytic filter 5 with visible light.

  As described above, the LED light source 7 emits light by power feeding from the power generation motor 63 of the wind power generation unit 6 that generates power by ventilation in the intake air passage 2, and therefore, from the LED light source 7 to the photocatalytic filter 5 during ventilation. Light is irradiated. Thereby, light is irradiated at the time of the ventilation which a harmful substance adheres to the photocatalyst filter 5 most easily, and light can be stably irradiated to the photocatalyst filter 5 using ventilation regardless of day and night.

  As shown in FIGS. 1, 2, and 5, the indoor unit A is assembled with a resin-made first main body unit 10 to which the wind power generation unit 6 is assembled, a photocatalytic filter 5, and an LED light source 7. The resin-made second main body unit 20 and the resin-made third main body unit 30 provided to be detachable from the indoor side with respect to the intake sleeve 4 constituting the intake air passage 2 are provided. In the third main body unit 30, the second main body unit 20 is assembled in a detachable fitting state. The first main unit 10 is detachably assembled to the outdoor side region in the second main unit 20 and the photocatalytic unit 40 described later is installed in the indoor side region of the second main unit 20. It is assembled in a detachable fit.

  And the indoor side unit A is easily comprised only by assembling the 1st main body unit 10 and the 2nd main body unit 20 which are comprised separately by the above-mentioned structure to the 3rd main body unit 30 used as an outer casing. be able to. Further, by removing the first main body unit 10 and the second main body unit 20 from the third main body unit 30, the wind power generation unit 6 assembled to the first main body unit 10 and the second main body unit 20 are assembled. Maintenance of the photocatalyst filter 5 and the LED light source 7 of the photocatalyst unit 40 can be performed efficiently and easily.

  The photocatalyst filter 5 and the LED light source 7 are configured as one photocatalyst unit 40 as shown in FIG. The photocatalytic filter 5 is arranged in a single layer or a plurality of layers in the indoor side portion of the unit case 41 of the photocatalyst unit 40. Appropriate inclination from the outdoor side with respect to the filter surface of the photocatalyst filter 5 at the four outer peripheral portions of the unit case 41 and displaced by 90 degrees in the circumferential direction centered on the air path axis. An LED light source 7 that irradiates light at an angle (30 to 70 degrees) is disposed.

  With the above-described configuration, for example, the number of LED light sources 7 is smaller than that in the case where the LED light sources 7 are arranged in a posture along the direction orthogonal to the filter surface of the photocatalytic filter 5 (air path axis direction). The entire surface can be irradiated without leakage.

  As shown in FIGS. 1, 2, and 5, the third main body unit 30 includes a third case 31 having a flange 31 </ b> A that comes into contact with the surface 3 b of the wall finishing material 3 from the airway axis direction, And a third cover 32 that covers a part of the outer peripheral portion and the front portion of the large-diameter trunk portion 21A of the second main body unit 20 to be described later that protrudes indoors from the surface 3b of the finishing material 3. The third cover 32 has a quadrangular shape when viewed in the direction of the airway axis. In the center of the front plate portion 32A of the third cover 32, a circular opening 33 in which a circular lid cover 22 of the second main body unit 20 described later is disposed is formed. The inner diameter of the opening 33 is configured to be larger than the maximum outer diameter of the first main body unit 10 and the maximum outer diameter of the second main body unit 20. Therefore, the first main body unit 10 and the second main body unit 20 can be attached and detached through the opening 33 of the third cover 32. The third cover 32 is engaged and connected to the flange portion 31A of the third case 31 so as to be detachable from the airway axis direction.

  As shown in FIGS. 1, 2, and 5, the third cylinder body 31 </ b> B of the third case 31 is formed in a cylindrical shape that can be inserted into the inner peripheral surface of the intake sleeve 4 in a sliding state. A plurality of annular guide plates 34 arranged concentrically with the third cylinder body 31B are provided on the inner surface of the bottom plate part 31C on the distal end side (outdoor side) of the third cylinder body 31B of the third case 31. The protrusion is integrally formed. A large number of third ventilation holes 35 are formed through the bottom plate portion 31 </ b> C of the third case 31. Specifically, the third vent hole 35 includes an inner portion of the annular guide plate 34 having the smallest diameter, an adjacent portion between the annular guide plates 34 adjacent in the radial direction, and an annular guide plate 34 having the largest diameter. The third cylindrical body portion 31B is formed in a distributed manner between the opposed surfaces of the inner peripheral surface of the third cylindrical body portion 31B.

As shown in FIGS. 1, 2, and 5, the second main body unit 20 includes a second case 21 that can be slidably inserted into the inner peripheral surface of the third cylindrical body portion 31 </ b> B of the third main body unit 30. A non-translucent lid cover 22 that can be rotated and closes the opening end 21 a on the indoor side of the second case 21. As shown in FIG. 6, there are four circumferential positions opposite to each other between the inner surface 22 b of the lid cover 22 and the opening end 21 a of the second case 21 by the rotation operation of the lid cover 22 with respect to the second case 21. An engagement protrusion 23 and an engagement protrusion 24 to be detached are formed.
As shown in FIG. 4, rotational operation knobs 22 </ b> A along the diameter direction of the lid cover 22 are integrally formed at two locations in the circumferential direction of the front surface 22 a that is the indoor side of the lid cover 22. When the lid cover 22 is rotated by the pair of rotary operation knobs 22A, the engagement projection 23 (see FIG. 6) of the lid cover 22 is engaged with the engagement projection 24 of the second case 21, and the lid cover The engagement protrusion 23 of the second case 21 is configured to be switchable between an open state in which the engagement protrusion 23 of the second case 21 is disengaged from the engagement protrusion 24 in the circumferential direction.

  As shown in FIGS. 1, 2, and 5, the second case 21 includes a short large-diameter barrel portion 21 </ b> A that is formed to have a larger diameter than the outer diameter of the third cylindrical barrel portion 31 </ b> B of the third main body unit 30. And a long small-diameter barrel portion 21B that is inserted into the third cylinder barrel portion 31B of the third main body unit 30 in a sliding contact state. A plurality of closing bodies 25 capable of closing the third vent hole 35 of the third case 31 are provided in a concentric state at the distal end side (outdoor side) end of the small-diameter trunk portion 21B of the second case 21. ing. Specifically, as shown in FIG. 2, the closing body 25 enters the inner peripheral surface of the annular guide plate 34 having the smallest diameter in a sliding contact state and closes the third vent hole 35 in the central portion. Of the two annular guide plates 34 that are adjacent to each other in the radial direction in an slidable contact state to close the third vent hole 35 of the part, and a maximum diameter An outermost annular closing body 25 that enters the inner surface of the annular guide plate 34 and the inner peripheral surface of the third cylindrical body portion 31B in a sliding contact state and closes the third vent hole 35 of the portion, Have

  The annular guide plate 34 of the third case 31 and the closing body 25 of the second case 21 constitute the air passage opening / closing portion 8 that opens and closes the intake air passage 2. As shown in FIG. 2, the air passage opening / closing section 8 pushes and moves the second main body unit 20 with respect to the third main body unit 30, so that the closing body 25 of the second case 21 becomes a circle of the third case 31. The state of entering the annular guide plate 34 is the air path closing position. Further, as shown in FIG. 1, the second body unit 20 is pulled out and moved with respect to the third body unit 30, and the closing body 25 of the second case 21 is removed from the annular guide plate 34 of the third case 31. The released state becomes the airway opening position.

  Between the second case 21 of the second main body unit 20 and the third case 31 of the third main body unit 30, a pressing operation body 26 (FIG. 6, FIG. 6) fixed to the center of the lid cover 22 of the second main body unit 20. A lock mechanism (not shown) is provided that holds the second case 21 alternately at the air passage opening position and the air passage closing position by repeating the pressing operation (see FIG. 7).

In a state where the air passage opening / closing portion 8 is in the air passage opening position, the lid cover 22 of the second main body unit 20 protrudes forward by a predetermined dimension from the front plate portion 32A of the third cover 32 as shown in FIG. To do. As a result, the photocatalytic filter 5 of the photocatalytic unit 40 passes between the outer peripheral edge portion 22 d of the cover cover 22 and the peripheral edge portion of the opening 33 in the front plate portion 32 </ b> A of the third cover 32, and the inner surface of the cover cover 22. An air outlet 27 is formed through which purified intake air that flows radially outward along the line 22b is blown into the indoor space.
In a state where the air passage opening / closing portion 8 is in the air passage opening position, the light of the LED light source 7 that has passed through the photocatalytic filter 5 of the photocatalytic unit 40 is the outer peripheral edge portion 22d of the lid cover 22 and the front plate portion 32A of the third cover 32. It leaks indoors from the air blower outlet 27 which opens along the circumferential direction between the peripheral parts of the opening 33 in. As shown in FIG. 4, a part of the light of the LED light source 7 leaking indoors from the air outlet 27 is irradiated on the surface of the front plate portion 32 </ b> A of the third cover 32. In FIG. 4, the leakage light irradiation area a is displayed in gray.
Therefore, the 1st light leakage part which leaks the light of LED light source 7 indoors with the air blower outlet 27 formed in the indoor side site | part of the indoor side unit A in the state in which the air path opening / closing part 8 exists in an air path opening position 9A.

  As shown in FIGS. 6 and 7, in the central portion of the inner surface 22 b of the lid cover 22, the intake air that has passed through the photocatalytic filter 5 of the photocatalytic unit 40 radiates radially outward along the inner surface 22 b of the lid cover 22. A circular air flow guide member 28 having a spherical guide surface 28 a that guides the flow is fixed with screws 29. The air flow guide member 28 is made of a transparent resin that can transmit light. The airflow guide member 28 is formed with an annular protrusion 28 </ b> A that fits into a central through hole 22 c formed at the center of the lid cover 22. The indoor front end surface 28 b of the annular protrusion 28 </ b> A of the air flow guide member 28 is flush with the front surface 22 a that is the indoor side of the lid cover 22. In addition, a disk-like pressing operation body 26 made of a non-translucent resin material is fixed in a recess surrounded by the annular protrusion 28A of the air flow guide member 28.

  As shown in FIGS. 6 and 7, the light from the LED light source 7 that has passed through the photocatalytic filter 5 of the photocatalytic unit 40 passes through the air flow guide member 28 attached to the center of the inner surface 22 b of the lid cover 22, As shown in FIG. 4, the air flow guide member 28 leaks indoors from the tip surface 28b of the annular projection 28A. The annular projection 28A of the air flow guide member 28 disposed in the indoor side portion of the indoor unit A is configured as a second light leakage portion 9B that leaks the light from the LED light source 7 to the indoor side.

  Then, by visually checking that the first light leakage portion 9A and the second light leakage portion 9B are brightened by the leakage light of the LED light source 7, the wind power generation unit 6 is normally operated by the ventilation in the intake air passage 2. It is possible to easily confirm that the LED light source 7 emits light normally by power feeding from the wind power generation unit 6 in the power generation state.

  As shown in FIGS. 1 and 2, in the small-diameter barrel portion 21 </ b> B of the second case 21 of the second main body unit 20, the first case 11 of the first main body unit 10 and the outdoor side end portion of the photocatalyst unit 40 described later. Is inserted and arranged. When the first case 11 is inserted and held at a predetermined mounting position in the small-diameter barrel portion 21B of the second case 21, the indoor side end of the first case 11 positions the mounting position of the photocatalyst unit 40 with the unit case 41. The contact portion for positioning is determined by contact.

  As shown in FIGS. 1, 2, and 5, the first main body unit 10 includes a cylindrical first case 11 that can be slidably inserted into the inner peripheral surface of the small-diameter barrel portion 21 </ b> B of the second case 21. The first case 11 is configured as a wind power generation unit in which the blade 62 of the wind power generation unit 6 and the power generation motor 63 are assembled. A tapered air passage restricting guide portion 12 having a smaller air passage diameter toward the indoor side is formed in a portion closer to the indoor side of the inner peripheral surface of the first case 11. By this air path narrowing guide section 12, the intake air that has passed through the air path opening / closing section 8 of the intake air path 2 is guided to flow toward the center side of the photocatalytic filter 5 of the photocatalytic unit 40 in a state where the flow velocity is increased.

  As shown in FIG. 1, the outdoor unit B prevents the intrusion of rain water in a state of covering the gallery 81 having a plurality of blades 81 a that prevent the ingress of rain water and the upper half of the outer surface side of the gallery 81. And a well-structured ventilation unit including a hood 82. The outdoor unit B includes a mounting base 83 fitted and fixed to the outdoor side end of the intake sleeve 4 in contact with the outer surface of the outer wall 1, and a gallery 81 and a hood 82 are supported by the mounting base 83. Yes.

[Other Embodiments]
(1) The buildings targeted by the air intake system of the present invention are ordinary houses, ordinary buildings, condominiums, schools, hospitals, public halls, companies, factories, station buildings, etc. All of the buildings used are included.

  (2) In the above-described embodiment, the photocatalytic filter 5, the light source 7, and the wind power generation unit 6 of the intake system are arranged in this order from the indoor side to the outdoor side, but this order is limited. It is not a thing. Arrangement | positioning of the photocatalyst filter 5, the light source 7, and the wind power generation part 6 can be set arbitrarily.

  (3) In the above-described embodiment, the LED light source 7 is disposed obliquely with respect to the filter surface of the photocatalytic filter 5, but is not limited to this configuration. For example, you may arrange | position the LED light source 7 with the attitude | position along the orthogonal direction (air-path axial direction) with respect to the filter surface of the photocatalyst filter 5. FIG.

(4) In the above-described embodiment, the intake system of the present invention is applied to a building that adopts the third type ventilation in which the intake from the outdoors is performed by natural intake and the exhaust from the interior is performed by the ventilator. It is not limited to. For example, the intake system of the present invention is a building that employs a first type ventilation in which both outdoor intake and indoor exhaust are performed by a ventilator, or outdoor intake is performed by a ventilator and is performed indoors. It can also be applied to buildings that employ type 2 ventilation in which natural exhaust is used.
The intake system of the present invention can also be applied to buildings that do not require 24-hour ventilation.

A Indoor unit 2 Intake air path 5 Photocatalytic filter 6 Wind power generation unit 7 Light source (LED light source)
9A Light leakage part (first light leakage part)
9B Light leakage part (second light leakage part)
10 1st body unit 20 2nd body unit 30 3rd body unit

Claims (6)

  A photocatalytic filter, a wind power generator that generates power by ventilation from the outdoor side to the indoor side in the intake air path, and light to the photocatalyst filter by power supply from the wind power generator. And a light source for irradiating the air intake system.   2. The intake system according to claim 1, wherein the photocatalytic filter, the light source, and the wind power generation unit are assembled to an indoor unit that is detachably provided in an exposed state on the indoor side with respect to the intake air passage.   The intake system according to claim 2, wherein the photocatalyst filter, the light source, and the wind power generation unit are assembled to the indoor unit in a state in which the photocatalytic filter, the light source, and the wind power generation unit are arranged in this order from the indoor side to the outdoor side. .   4. The intake system according to claim 2, wherein a light leakage portion that leaks light from the light source to an indoor side is provided at an indoor side portion of the indoor unit.   The indoor unit includes a first body unit in which the wind power generation unit is assembled, a second body unit in which the photocatalytic filter and the light source are assembled, and an indoor side with respect to the intake air path. And a third main body unit that is detachably attached to the third main body unit, wherein the first main body unit and the second main body unit are detachably assembled to the third main body unit. The intake system according to any one of claims. The intake system according to any one of claims 1 to 5, wherein the light source is an LED light source, and the LED light source is disposed obliquely with respect to a filter surface of the photocatalytic filter.

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