JP3109666B2 - air purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier used in a passenger car or a house, and more particularly to an air purifier using a photocatalyst.

[0002]

In recent years, attention has been paid to the environmental purification action of a photocatalyst such as titanium oxide. For example, titanium oxide causes an oxidation-reduction reaction, particularly an oxidation reaction, on the surface when irradiated with ultraviolet rays, and oxidizes water to generate hydroxyl radicals. This breaks down organic compounds and converts them to carbon dioxide and water. As a result, an environmental purification action such as antibacterial action, decomposition of bad smell and dirt is obtained.

[0003] A photocatalyst having such an environment purifying action is also applied to an air purifier. In a conventional air purifier using a photocatalyst, a cardboard or a cardboard-like nonwoven fabric is used as a carrier for supporting the photocatalyst. I was Then, an air flow is passed through the cardboard or the nonwoven fabric by a blower.

However, in the case of using a non-woven fabric as a carrier for supporting the photocatalyst, the non-woven fabric has poor light transmittance, so that light is applied to the photocatalyst on the front side of the nonwoven fabric, but not so much light is applied to the photocatalyst on the back side of the nonwoven fabric. Absent. Therefore, an effective purifying action cannot be obtained in combination with the fact that the nonwoven fabric is originally thin. In addition, since the nonwoven fabric has a large airflow resistance, a large air volume cannot be obtained, and the operating efficiency of the blower also deteriorates. And, the smaller the air volume, the smaller the air purified by the photocatalyst. on the other hand,
One way to improve translucency or reduce airflow resistance is to roughen the nonwoven fabric.However, when the coarseness is increased, air passing through the nonwoven fabric without being catalyzed by the photocatalyst is used. And an effective purifying action cannot be obtained. Further, when paper is used as the carrier, the paper is an organic substance and is immersed in the photocatalyst, so that a large amount of the photocatalyst cannot be supported in order to have a certain life. Therefore, the purifying action per unit area is reduced.

[0005] The present invention is intended to solve such a problem, and a first object of the present invention is to improve the purifying ability of an air purifier using a photocatalyst. further,
A second object of the present invention is to prevent a white photocatalyst from obstructing a driver or the like particularly in an air purifier used in an automobile or the like. A third object is to facilitate the incorporation of a carrier supporting a photocatalyst. Also,
A fourth object is to facilitate incorporation of the power supply of the blower.

[0006]

The air purifier according to the first aspect of the present invention has the following objects to attain the first and second objects.
A purifier body having an intake portion and an exhaust portion, a blower provided in the purifier body to blow air from the intake portion to the exhaust portion, and provided in an air passage from the intake portion to the exhaust portion in the purifier body. A photocatalyst carrier carrying a photocatalyst, wherein the photocatalyst carrier is made of a metal block having a number of parallel air holes, and a photocatalyst is supported on the inner surface of the air holes. On the outside, a line-of-sight blocking louver that is opaque or translucent to visible light and transmits ultraviolet light is disposed.

[0007] When light hits the photocatalyst carried on the photocatalyst carrier, air is purified on the surface of the photocatalyst by the catalytic action. Further, when the blower is driven, air is sucked into the purifier main body from the suction part and discharged out of the purifier main body from the exhaust part. At this time, the air passes through the photocatalyst carrier. Thereby, the purified air is sent from the exhaust unit. The photocatalyst carrier is made of a metal block having a large number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. The contact area with the catalyst also increases, and the catalytic action is enhanced. In addition, the ventilation resistance in the photocatalyst carrier is reduced, and therefore, the air flow is increased, and the purification action is further improved. Furthermore, since the metal block body is an inorganic substance, it is not soaked by the photocatalytic action, and thus can carry a large amount of the photocatalyst. In addition, since electrons released by the action of the photocatalyst are captured, a decrease in the capacity of the photocatalyst is suppressed. Furthermore, for example, when the photocatalyst is white, such as titanium oxide, and when the air purifier is used on the rear dashboard or rear tray in a car, the photocatalyst reflected on the rear window is passed through the rearview mirror. However, by providing a line-of-sight louver that is opaque or translucent to visible light and transmits ultraviolet light outside the photocatalyst carrier, sunlight, especially catalytic action It is possible to shield the photocatalyst from the driver's line of sight while irradiating the photocatalyst with ultraviolet light. Also, in the louver,
It also has the effect of protecting the photocatalyst from external forces.

According to a second aspect of the present invention, there is provided a purifier body having an intake unit and an exhaust unit, and a cleaner provided in the purifier body, wherein the purifier has an intake unit and an exhaust unit. An air blower for blowing air, and a photocatalyst carrier carrying a photocatalyst provided in an air passage from the intake section to the exhaust section in the purifier main body, wherein the photocatalyst carrier is made of a metal having a number of parallel air holes. A photocatalyst carried on the inner surface of the air passage, and disposed below a rear window in an automobile, wherein the photocatalyst carrier and the exhaust portion are provided above the purifier body. Along with disposing, outside the photocatalyst carrier, a line-of-sight shielding louver that rises toward the rear window is disposed, and the angle of the rear window with respect to the horizontal plane is α,
When the angle of the line-of-sight louvers with respect to the horizontal plane is β, the length from the photocatalyst carrier side edge to the leading edge of the line-of-sight louvers is w, and the pitch between the line-of-sight louvers arranged in the horizontal direction is p, These α, β, w, and p are p ≦ w (co
sβ + sinβ / tan2α).

When light is applied to the photocatalyst supported on the photocatalyst carrier, air is purified on the surface of the photocatalyst by the catalytic action. Further, when the blower is driven, air is sucked into the purifier main body from the suction part and discharged out of the purifier main body from the exhaust part. At this time, the air passes through the photocatalyst carrier. Thereby, the purified air is sent from the exhaust unit. The photocatalyst carrier is made of a metal block having a large number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. The contact area with the catalyst also increases, and the catalytic action is enhanced. In addition, the ventilation resistance in the photocatalyst carrier is reduced, and therefore, the air flow is increased, and the purification action is further improved. Furthermore, since the metal block body is an inorganic substance, it is not soaked by the photocatalytic action, and thus can carry a large amount of the photocatalyst. In addition, since electrons released by the action of the photocatalyst are captured, a decrease in the capacity of the photocatalyst is suppressed. Furthermore, for example, when the photocatalyst is white such as titanium oxide, the photocatalyst reflected on the rear window can be seen by the driver through the rearview mirror and may be annoying. Louvers, and p ≦ w (cos β + sin β / tan)
By satisfying the relationship of 2α), the driver's line of sight through the rear-view mirror and the rear window is shielded from the photocatalyst by the line-of-sight louvers while the sunlight is applied to the photocatalyst. The louver also has a function of protecting the photocatalyst from external force.

According to a third aspect of the present invention, in the air purifier of the first or second aspect of the present invention, the inclination angle of the line-of-sight louver with respect to a horizontal plane is set to 50 to 60 °.

In Japan, the altitude (elevation angle) of the sun in the mid-south of the spring or autumn equinox is about 50 to 60 °, and if the inclination angle of the line-of-sight louver with respect to the horizontal plane is almost the same, Throughout the year, the photocatalyst can receive sunlight efficiently.

An air purifier according to a fourth aspect of the present invention is the air purifier of the first aspect.
In order to achieve the third object, a purifier body having an intake part and an exhaust part, a blower provided in the purifier body to blow air from the intake part to the exhaust part, and the intake part in the purifier body A photocatalyst carrier provided in the air passage from the to the exhaust unit and carrying a photocatalyst, the photocatalyst carrier is a metal block having a number of parallel air holes, the inner surface of the air holes A photocatalyst is supported, and the purifier main body includes a first main body member and a second main body member that are connected to each other, and the photocatalyst carrier is disposed in a frame formed on one main body member by the air. Along with fitting in the axial direction of the through-hole, the photocatalyst carrier is sandwiched between a crosspiece bridged over the frame of the one main body member and the other main body member in the axial direction of the air through-hole. is there.

When light strikes the photocatalyst carried on the photocatalyst carrier, the catalytic action purifies the air on the surface of the photocatalyst. Further, when the blower is driven, air is sucked into the purifier main body from the suction part and discharged out of the purifier main body from the exhaust part. At this time, the air passes through the photocatalyst carrier. Thereby, the purified air is sent from the exhaust unit. The photocatalyst carrier is made of a metal block having a large number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. The contact area with the catalyst also increases, and the catalytic action is enhanced. In addition, the ventilation resistance in the photocatalyst carrier is reduced, and therefore, the air flow is increased, and the purification action is further improved. Furthermore, since the metal block body is an inorganic substance, it is not soaked by the photocatalytic action, and thus can carry a large amount of the photocatalyst. In addition, since electrons released by the action of the photocatalyst are captured, a decrease in the capacity of the photocatalyst is suppressed. Further, the photocatalyst carrier can be easily assembled to the purifier body. In addition, a block body having a large number of parallel air holes, particularly a honeycomb-shaped block body has a strong stress in the axial direction of the air holes, but by sandwiching the photocatalyst carrier in this direction, the photocatalyst carrier is securely held. While being able to hold | maintain, the damage of a photocatalyst carrier can be prevented.

According to a fifth aspect of the present invention, in the air purifier of the fourth aspect, the first main body member comprises a main body case, and the second main body member has a louver. A louver forming body to be fitted, a fan housing is sandwiched between the main body case and the louver forming body, and a step formed on a side wall of the main body case and an outer wall surface of the fan housing and the louver forming body; The photocatalyst carrier is sandwiched between them.

[0015] Thus, the structure for assembling the photocatalyst carrier to the purifier body is further simplified, and the structure for assembling the blower housing to the purifier body is also simple.

According to a sixth aspect of the present invention, in the air purifier of the fifth aspect of the present invention, the louver forming body is mounted on the upper side of the main body case, and the suction portion is provided at a central portion of a lower portion of the main body case. The blower housing is attached to a central portion in the main body case, and an upper portion of the blower housing is fitted into a hole formed in a central portion of the photocatalyst carrier.

Thus, the central portion of the photocatalyst carrier can be held by the blower housing, so that the holding can be made more reliable. Further, since the air passage is formed by the side wall of the main body case and the side wall of the blower housing, all the air passes through the photocatalyst carrier, and moreover, uniformly passes through the entire photocatalyst carrier. Further, no matter which side of the side surface of the purifier body is attached to the wall in the vehicle interior, a certain amount of airflow can be secured as compared with the case where the blower is not provided at the center.

According to a seventh aspect of the present invention, in the air purifier of any one of the first to sixth aspects, in order to achieve the fourth object, a plate-shaped solar cell as a power supply of the blower is provided. And a plurality of louvers provided outside the photocatalyst carrier, wherein the solar cell is held by fitting into notches formed in the plurality of louvers.

Since this air purifier uses a photocatalyst, it is used in a place where light can be received from the beginning. However, if a solar battery is used as a power supply for the blower, another power supply is unnecessary. In addition, by fitting and holding the solar cell in the notch formed in the plurality of louvers, the solar cell can be easily assembled to the purifier body.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the air purifier of the present invention will be described below with reference to FIGS.
Reference numeral 1 denotes a purifier main body. The purifier main body 1 has a main body case 2 as a first main body member made of plastic or the like having an open upper surface. Legs 3 are formed at four corners on the lower surface of the main body case 2 so as to protrude. The height h of the leg 3 is about 10 mm. At the center of the bottom wall of the main body case 2, a lattice-shaped intake port 4 forming an intake section is formed.

A blower housing 11 is attached to the center of the main body case 2. The blower housing 11 has a box shape with an open lower surface, and a plurality of protrusions 12 formed on the lower surface of the side wall are fitted into fixing recesses 13 formed on the inner surface of the bottom wall of the main body case 2. It is stopped. In addition, the blower housing 11 is
, A plurality of ventilation holes 14 are formed in the side wall of the blower housing 11. In addition, these vents
An upwardly-facing horizontal step 15 is formed on the outer surface of the side wall of the blower housing 11 at a position higher than 14. The step 15 is located on the same horizontal plane as the upper end surface 5a of the side wall 5 of the main body case 2. In the blower housing 11, a blower 18 including an electric motor 16 and a fan 17 rotationally driven by the motor 16 is housed.

Reference numeral 21 denotes a photocatalyst carrier as a filter. The photocatalyst carrier 21 is formed of a flat block made of aluminum (including an aluminum alloy) which is a metal. The photocatalyst carrier 21 has a honeycomb shape, and has a large number of parallel elongated hexagonal prism-shaped air holes 22. The width of the photocatalyst carrier 21 is the smallest in the vertical direction, but the axial direction of the air hole 22 is the vertical direction. Titanium oxide as the photocatalyst 23 is supported on the surface of the photocatalyst carrier 21 including the inner surfaces of the air holes 22 in a film form. Since titanium oxide is white, the photocatalyst carrier 21 also has a white appearance. In the center of the photocatalyst carrier 21, a hole 24 vertically penetrating the upper part of the blower housing 11 is formed.

Reference numeral 31 denotes a louver forming body serving as a second main body member. The louver forming body 31 is attached to the opening side, that is, the upper side of the main body case 2.
This constitutes the exhaust part 32. The louver forming body 31 includes a peripheral cylindrical frame portion 33, a plurality of crosspieces 34 provided between upper portions of a pair of side walls of the frame portion 33, and a plurality of directional portions orthogonal to the crosspieces 34. And a louver 35 for line-of-sight shielding. These louvers 35 are located above the crosspiece 34.

The photocatalyst carrier 21 is provided with the air holes 22.
Frame portion 33 of the louver forming body 31 on the side surface along the axial direction of
Is fitted inside. The main body case 2 and the louver forming body 31 are connected to each other by fitting a frame 33 of the louver forming body 31 to the outside of the side wall 5 of the main body case 2. In this state, the upper part of the blower housing 11 is fitted into the hole 24 of the photocatalyst carrier 21, and the photocatalyst carrier 21 is connected to the upper end face 5 a of the side wall 5 of the main body case 2 and the blower housing 11.
Of the louver forming body 31 is entirely sandwiched between the step portion 15 of the louver forming body 31 and the step portion 15. That is, the direction of the sandwiching is the axial direction of the air passage hole 22 of the photocatalyst carrier 21. Thereby, the photocatalyst carrier 21
Are fixed to the purifier body 1 and assembled. The blower housing 11 is also fixed by being sandwiched between the bottom wall of the main body case 2 and the louver forming body 31.

This air purifier is used, for example, placed on a rear dashboard or a rear tray in an automobile. The window-shaped louver 35 located outside the photocatalyst carrier 21 has a window-like shape. Light rays substantially parallel to the louver 35 pass, but not light rays intersecting with each other, so that the white photocatalyst carrier 21 enters the field of view of the driver 43 via the rear window 41 and the rear-view mirror 42 located above the white photocatalyst carrier 21. It is for preventing.

The louver forming body 31 is, for example, a molded article of plastic. The material, especially the material of louver 35,
It is preferable that the material be opaque or translucent with respect to visible light, while it allows ultraviolet light causing the catalytic action of titanium oxide to pass well. In this embodiment, an acrylic resin (polymethyl methacrylate) is used. Acrylic resin is
For example, the transmittance of ultraviolet rays is higher than that of polycarbonate. Further, it is preferable to perform a non-glare (non-reflection) process on the upper surface 35a of the louver 35.

The louver 35 is inclined at a predetermined angle β with respect to the horizontal plane. However, when the louver 35 is used on a rear dashboard or a rear tray in an automobile, the louver 35 is positioned rearward, that is, in the rear window 41. The air purifier is disposed in a direction to ascend in the direction. Rear window
This is because the light coming from the light source 41, particularly the sunlight L, passes between the louvers 35 and strikes the photocatalyst carrier 21. Then, as shown in FIG. 5, the angle of the rear window 41 with respect to the horizontal plane is α, the length of the louver 35 from the edge of the photocatalyst carrier 21 side to the leading edge is w, and the pitch between the louvers 35 arranged in the horizontal direction is When p, these α, β, w, and p satisfy p ≦
w (cosβ + sinβ / tan2α)... Assuming that the line of sight V of the driver 43 between the rear-view mirror 42 and the rear window 41 is horizontal, the photocatalyst carrier 21 is shielded from the line of sight V of the driver 43 by the louver 35 by satisfying the above relationship. For example, β
In the case where = 54 °, α = 28 °, and w = 10 mm, p may be set to 11.3 mm or less. In recent passenger cars, α is about 30 ° and the latitude of Japan is about 30 to 40 °, so β is preferably about 50 to 60 °.

Further, a flat solar cell 46 serving as a power source for the electric motor 16 is mounted above the louver 35 at a position above the blower housing 11.
For this attachment, a cutout portion 47 for fitting the solar cell 46 is formed above the plurality of louvers 35. Recesses 48 are respectively formed at lower portions on both sides of the notch portion 47, and both side surfaces of the notch portion 47 above the recesses 48 are inclined surfaces 49 having a narrower space downward. I have. The space between both side surfaces of the notch 47 is slightly larger than the width of the solar cell 46 in the upper part and the concave part 48, and is slightly smaller than the width of the solar cell 46 in the lower part of the inclined surface 49. At the time of mounting the solar cell 46, when the solar cell 46 is fitted into the notch 47 from above, the louver 35 is elastically deformed, and the solar cell 46 rides over the lower part of the inclined surface 49, on the lower surface of the notch 47. And the solar cell 46
Are fitted into both recesses 48 respectively. As a result, the solar cell 46 is held by the louver 35.

The solar cell 46 is electrically connected to the motor 16 located directly below the solar cell 46 by an electric wire 50. In the present embodiment, no switch is provided between the solar cell 46 and the motor 16, and the motor 16 operates when the solar cell 46 generates power. A switch may be provided between them.

Next, the operation of the above configuration will be described. The present air purifier can be used in an appropriate place such as an automobile or a house. Hereinafter, a case where the air purifier is used by placing it on a rear dashboard or a rear tray in the automobile will be described.

When light such as sunlight L impinges on the solar cell 46 through the rear window 41, the solar cell 46 generates power and the blower 18 operates. By the operation of the blower 18, as shown by an arrow in FIG.
Through the gap between the installation surface 51 (the upper surface of the dash boat or the rear tray) formed by the above and the lower surface of the main body case 2, the air is taken into the blower housing 11 in the main body case 2 from the intake port 4 and the fans 17, Blower housing 11
Through the air holes 14, and further through the air holes 22 of the photocatalyst carrier 21 to form a louver forming body 31 as an exhaust part.
Is discharged to the outside.

When the photocatalyst 23 carried on the photocatalyst carrier 21 is exposed to light such as sunlight L, particularly ultraviolet rays, the organic compound is decomposed on the surface of the photocatalyst 23 by the catalytic action of the photocatalyst 23, and deodorization and the like are caused. Purification is performed. That is, the air is purified while passing through the photocatalyst carrier 21 in the air passage in the purifier body 1, and the purified air is blown into the room.

According to the configuration of the above embodiment, the photocatalyst carrier 21
Is made of a honeycomb-shaped aluminum block body, has a number of parallel air holes 22, and carries the photocatalyst 23 on the surface including the inner surface of the air holes 22, so that the photocatalyst carrier is made of non-woven fabric. Photocatalyst 23
And the contact area between the photocatalyst 23 and the air also increases, and therefore, the catalytic effect of the photocatalyst 23 increases, and thus the purification effect also increases significantly. Then, the entire photocatalyst carrier 21 can be reduced in size and the entire air purifier can be reduced in size as compared with the area where the photocatalyst 23 acts. Further, since the air holes 22 are straight, the air flow resistance in the photocatalyst carrier 21 is reduced, and the air smoothly passes through the photocatalyst carrier 21, so that the air volume is increased and the purification action is further improved. Since the output of the blower 18 can be relatively small, the size of the blower 18 can be reduced, and power consumption can be reduced.

Further, since the photocatalyst carrier 21 is made of an inorganic substance, it is difficult to be immersed by the photocatalysis. Further, since the photocatalyst carrier 21 is made of a conductor, the photocatalyst 23 captures electrons released by the action of the photocatalyst 23, and thus suppresses a decrease in performance of the photocatalyst 23. In addition, when the material of the honeycomb-shaped block body is metal, compared to the case of using paper or the like,
There is also an advantage that the wall around the air hole 22 can be made thin. Furthermore, the honeycomb-shaped aluminum block has advantages that it is lightweight, has relatively high strength, and is easy to manufacture.

When dust adheres and accumulates on the outer surface of the photocatalyst carrier 21, ie, the upper surface in this embodiment, there is a possibility that the dust will hinder the light from hitting the photocatalyst 23. However, in the air purifier of the present embodiment,
Since the air passes through the photocatalyst carrier 21 from the bottom to the top, even if the dust 52 adheres to the lower surface, that is, the back side of the photocatalyst carrier 21, the dust 52 to be attached to the photocatalyst carrier 21 is blown off, and the photocatalyst carrier 21 Dust 52 is unlikely to accumulate on top. Therefore, the purifying action by the activity of the photocatalyst 23 can be maintained for a long time without particularly performing cleaning. Further, since the photocatalyst 23 is easily separated from the photocatalyst carrier 21, it is advantageous that the photocatalyst carrier 21 is not easily clogged even if the photocatalyst carrier 21 is not washed. It is also an advantage that the airflow resistance is hardly reduced and the appearance is not conspicuous.

Further, since the blower 18 is disposed at the center of the purifier body 1 and the photocatalyst carrier 21 is disposed therearound, the air can be uniformly dispersed throughout the photocatalyst carrier 21 and blown. . Also, no matter which side of the side surface of the purifier body 1 is attached to the wall in the vehicle interior, a certain amount of airflow can be secured as compared with the case where the blower is not in the center. Also, in terms of design,
The symmetrical arrangement in which the blower 18 and a solar cell 46 provided above the blower 18 are located at the center is preferable.

Further, the louvers 35 provided above or outside the photocatalyst carrier 21 can shield the photocatalyst 23 from the line of sight V of the driver 43 while directing the sunlight L on the photocatalyst 23. That is, if the photocatalyst 23 made of white titanium oxide of the present air purifier placed on the rear dashboard or rear tray in the car reflects off the rear window 41 and the rearview mirror 42 and is seen from the driver 43, it is annoying. become. If the surface of the photocatalyst carrier 21 is colored in order to prevent this, light, especially ultraviolet rays, cannot pass, and the effect of the photocatalyst 23 cannot be obtained. On the other hand, if the louver 35 is used as in the present air purifier, the reflection of the window can be prevented without impairing the effect of the photocatalyst 23. To shield the photocatalyst 23 from the line of sight V of the driver 43, as described above, the angle of the rear window 41 with respect to the horizontal plane is α, the angle of the louver 35 with respect to the horizontal plane is β, Let w be the length up to and p be the pitch between the louvers 35 arranged in the horizontal direction.
It suffices that w and p satisfy the relationship of p ≦ w (cos β + sin β / tan 2α).

Further, in Japan, the altitude (elevation angle) of the sun in the mid-south of the spring or autumn equinox is about 50 to 60 °, but since this is almost the same as the angle β of the louver 35, it is almost equal to that of Japan. Throughout the year, the photocatalyst 23 can receive the sunlight L most efficiently in the region of the latitude zone. Furthermore, the angle α of the rear window 41 of recent automobiles is often about 30 °, and from this, it is preferable to set the angle β of the louver 35 to about 50 to 60 ° in order to satisfy the above relationship. . The angle β of the louver 35 is more preferably about 54 °. 90 ° -54 ° = 36 ° is the average latitude in Japan.

Furthermore, by using a material that is opaque or translucent to visible light and transparent to ultraviolet light as a material for the louver 35, the photocatalyst 23 can be used without obstructing the driver 43. In addition, it is possible to satisfactorily irradiate ultraviolet light which causes a catalytic action. In addition, by applying non-glare processing to the upper surface 35a of the louver 35, it is possible to prevent reflection of the window due to reflection, and to prevent the louver 35 itself which is in the field of view of the driver 43 via the rear window 41 and the rearview mirror 42 from being obstructed. it can.

Although the photocatalyst 23 is easily peeled off from the photocatalyst carrier 21, the louver 35 also has a function of preventing any object from coming into contact with the photocatalyst 23.

The photocatalyst carrier 21 made of a block body
Fits into the frame 33 of the louver forming body 31, and
The photocatalyst carrier 21 can be easily attached to the purifier body 1 because it is sandwiched between the step portion 15 formed on the upper end surface 5a of the side wall 5 of the main body case 2 and the outer surface of the side wall of the blower housing 11 and the bar portion 34 of the louver forming body 31. Can be assembled. Further, since dedicated special parts such as screws are not required for assembling the photocatalyst carrier 21, the configuration for assembling the photocatalyst carrier 21 can be simplified, and the cost can be reduced. Furthermore, the photocatalyst carrier 21 formed of a honeycomb-shaped block body has a strong stress in the axial direction of the honeycomb, that is, the axial direction of the air through hole 22, but by sandwiching the photocatalyst carrier 21 in this direction, the photocatalyst carrier 21 can be securely held. In addition to holding, the photocatalyst carrier 21 can be prevented from being damaged. Moreover, since the blower 18 is disposed at the center of the purifier main body 1 as described above, the center of the photocatalyst carrier 21 can be held by the blower housing 11, so that the holding can be made more reliable.

Further, since an air passage is formed by the side wall 5 of the main body case 2 and the side wall of the blower housing 11, all the air passes through the photocatalyst carrier 21 and further uniformly passes through the entire photocatalyst carrier 21.

The blower housing 11 is also provided in the main body case 2.
And the louver forming body 31, and the blower housing 11 is fixed by fitting the convex portion 12 and the concave portion 13.
Is prevented from rotating, so that the blower housing 11 can be easily assembled. Further, since a dedicated component such as an adhesive tape is not required for fixing the blower housing 11, the cost can be reduced.

As described above, the main body case 2, the blower housing 11 and the photocatalyst carrier are basically only fitted.
Since the assembly 21 and the louver forming body 31 are assembled, when the assembly needs to be disassembled, the disassembly can be easily performed. In particular,
The photocatalyst carrier 21 can be easily removed by removing the louver forming body 31 from the main body case 2.

Further, the present air purifier uses the photocatalyst 23, so that it is used in a place where light can be received. However, since the solar battery 46 is used as the power supply of the blower 18, the air purifier can be used if there is light. Can be used, no other power supply is required, and it is economical. In addition, since the notches 47 are formed in the plurality of louvers 35 and the solar cells 46 are fitted and held in these notches 47, the solar cells 46 can be easily assembled to the purifier body 1. The solar cell 46 can be assembled with a simple configuration without using separate components such as an adhesive tape.

Further, since the solar cells 46 are disposed immediately above the blower 18, the wires 50 for wiring between the solar cells 46 and the blower 18 can be shortened.

FIG. 6 shows a second embodiment of the air purifier of the present invention. The air purifier of the second embodiment is mounted directly on the interior side of a window glass 56 such as a side window of an automobile. In this case, the vertical direction of the air purifier in the first embodiment is made horizontal, and
The photocatalyst contact body 21 side, which is the exhaust part 32 side, is directed to the window glass 56 side, that is, the vehicle outside. A hook 57 that is hooked on the upper edge of the window glass 56 is provided at an upper portion of the cleaner body 1 so as to be attached to the window glass 56.
A suction cup 58 that adsorbs to the window glass 56 is provided at a lower portion of the window.

As described above, if the air purifier can be directly attached to the window glass 56, the present air purifier can be installed in an automobile without a rear tray. In addition,
The louver 35 is for preventing the photocatalyst 23 from entering the field of view of the driver or the like, and thus the louver 35 is not necessarily required in the case of the second embodiment.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example,
In the above-described embodiment, the case where the air purifier is used in the vehicle compartment has been described as an example. However, the air purifier of the present invention can be used in an appropriate place such as a house other than a car.

In the above embodiment, a honeycomb-shaped aluminum block was used as the photocatalyst carrier, but the photocatalyst carrier is not limited to this. For example, the shape of the air passage is not limited to a hexagonal prism, but may be an arbitrary shape such as a quadrangular prism or a triangular prism. The material of the photocatalyst carrier is not limited to aluminum,
Metals are preferred.

[0051]

According to the first aspect of the present invention, there is provided an air purifier having a purifier body having an intake section and an exhaust section, a blower provided in the purifier body to blow air from the intake section to the exhaust section, and the purifier. A photocatalyst carrier provided in a main body in an air passage from the intake section to the exhaust section and carrying a photocatalyst, wherein the photocatalyst carrier is formed of a metal block having a large number of parallel air holes; A photocatalyst is supported on the inner surface of the through-hole, and a line-of-sight shielding louver that is opaque or translucent to visible light and transmits ultraviolet light is disposed outside the photocatalyst carrier. As a result, the contact area between the photocatalyst and the air also increases, and the airflow resistance in the photocatalyst carrier decreases, thus improving the purification ability. further,
The metal block body is not immersed by photocatalysis,
Therefore, a large amount of the photocatalyst can be supported. Further, since the electrons released by the action of the photocatalyst are captured, a decrease in the performance of the photocatalyst can be suppressed. Furthermore, even if the air purifier is used on a rear dashboard or a rear tray in a car, for example, by using a louver for blocking eyes, the photocatalyst is exposed to sunlight, particularly ultraviolet rays that cause catalysis, while the rear is exposed. The photocatalyst reflected on the window can be seen from the driver through the rear-view mirror and can be prevented from becoming annoying. In addition, the louver can protect the photocatalyst from external force.

A second aspect of the present invention provides a purifier body having an intake section and an exhaust section, a blower provided in the purifier body for blowing air from the intake section to the exhaust section, and A photocatalyst carrier that is provided in an air path to an exhaust unit and carries a photocatalyst, wherein the photocatalyst carrier is
An air purifier comprising a metal block having a number of parallel air holes, carrying a photocatalyst on an inner surface of the air holes, and disposed below a rear window in an automobile. In addition to disposing the photocatalyst carrier and the exhaust portion at the upper part of the container body, disposing a line-of-sight shielding louver rising toward the rear window outside the photocatalyst carrier, and setting the angle of the rear window with respect to the horizontal plane to α Where β is the angle of the line-of-sight louvers with respect to the horizontal plane, w is the length of the line-of-sight louvers from the photocatalyst carrier side edge to the tip edge, and p is the pitch between the line-of-sight louvers arranged in the horizontal direction. And α, β, w, and p have a relationship of p ≦ w (cos β + sin β / tan 2α), so that the area where light is applied to the photocatalyst increases and the contact area between the photocatalyst and air also increases. Listen Nari, also the ventilation resistance in the photocatalyst carrier is reduced, thus,
Purification ability is improved. Furthermore, the metal block body
It is not immersed by the photocatalysis, so that a large amount of the photocatalyst can be supported. Further, since the electrons released by the action of the photocatalyst are captured, a decrease in the performance of the photocatalyst can be suppressed. Further, the line of sight louvers can shield the driver's line of sight from the photocatalyst through the rear-view mirror and the rear window while irradiating sunlight to the photocatalyst. Also,
The louver can protect the photocatalyst from external force.

According to a third aspect of the present invention, in the air purifier of the first or second aspect, the angle of inclination of the line-of-sight louvers with respect to a horizontal plane is set to 50 to 60 °, thereby achieving a level comparable to that of Japan. In the region in the latitude zone, the photocatalyst can receive sunlight efficiently.

According to a fourth aspect of the present invention, there is provided a purifier body having an intake section and an exhaust section, a blower provided in the purifier body to blow air from the intake section to the exhaust section, and A photocatalyst carrier that is provided in an air path to an exhaust unit and carries a photocatalyst, wherein the photocatalyst carrier is
The air purifier comprises a metal block having a number of parallel air holes, and a photocatalyst is supported on the inner surface of the air holes. The purifier main body and the second main body member and the second main body member are connected to each other. A main body member, and the photocatalyst carrier is fitted in a frame portion formed in one main body member in the axial direction of the air passage hole, and the photocatalyst carrier is attached to the one side in the axial direction of the air passage hole. It is sandwiched between the crosspiece erected on the frame portion of the main body member and the other main body member, and the area where the light hits the photocatalyst increases, the contact area between the photocatalyst and air also increases, The ventilation resistance in the photocatalyst carrier is reduced, and thus the purification ability is improved.
Further, the metal block body is not immersed by the photocatalytic action, so that a large amount of the photocatalyst can be supported.
Further, since the electrons released by the action of the photocatalyst are captured, a decrease in the performance of the photocatalyst can be suppressed. Furthermore, the photocatalyst carrier can be easily assembled to the purifier body, and in particular,
By sandwiching the photocatalyst carrier in the axial direction of the air hole, the photocatalyst carrier can be reliably held and the photocatalyst carrier can be prevented from being damaged.

According to a fifth aspect of the present invention, in the air purifier of the fourth aspect, the first main body member comprises a main body case, and the second main body member has a louver. A louver forming body to be fitted, a fan housing is sandwiched between the main body case and the louver forming body, and a step formed on a side wall of the main body case and an outer wall surface of the fan housing and the louver forming body; The photocatalyst carrier is sandwiched between the photocatalyst carriers, no special parts for assembling the photocatalyst carrier are required, the configuration for assembling the photocatalyst carrier to the purifier body is further simplified, and the blower housing is cleaned with the purifier. The structure for assembling to the main body can be simplified.

According to a sixth aspect of the present invention, in the air purifier of the fifth aspect of the present invention, the louver forming body is attached to an upper side of the main body case, and the air intake portion is provided at a lower central portion of the main body case. The blower housing is attached to a central portion in the main body case, and an upper portion of the blower housing is fitted into a hole formed in a central portion of the photocatalyst carrier, so that the photocatalyst carrier can be more securely held. At the same time, an air passage is formed by the side wall of the main body case and the side wall of the blower housing, so that all air can pass through the photocatalyst carrier, and can evenly pass through the entire photocatalyst carrier. No matter which side of the side surface is attached to the wall in the vehicle interior, a certain amount of airflow can be secured as compared with the case where the blower is not at the center.

According to a seventh aspect of the present invention, in the air purifier of any one of the first to sixth aspects, a plate-shaped solar cell as a power supply of the blower and a plurality of solar cells disposed outside the photocatalyst carrier are provided. Louvers, the solar cells are fitted and held in notches formed in a plurality of the louvers, an air purifier can be used as long as there is light, energy savings, and solar cells Can be easily assembled to the purifier body with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is a perspective view of a photocatalyst carrier showing a first embodiment of the present invention.

FIG. 4 shows the first embodiment of the present invention, and is a front view partially in section showing a method of mounting a solar cell.

FIG. 5 is an explanatory view of the operation of the louver according to the first embodiment of the present invention.

FIG. 6 is a side view, partly in section, showing a second embodiment of the present invention.

[Explanation of symbols]

2 Body case (first body member) 4 Intake port (suction part) 5 Side wall 11 Blower housing 15 steps 18 Blower 21 Photocatalyst carrier 22 Air through hole 23 Photocatalyst 31 Louver forming body (Second body member) 32 Exhaust part 35 Gaze shielding louver (louver) 41 Rear window 46 Solar cell 47 Notch α Angle of rear window with respect to horizontal plane β Angle of gaze shielding louver with respect to horizontal plane w W Length p Pitch between horizontal line-of-sight louvers

Claims (7)

(57) [Claims] 1. A purifier body having an intake section and an exhaust section, a blower provided in the purifier body to blow air from the intake section to the exhaust section, and a wind from the intake section to the exhaust section in the purifier body. A photocatalyst carrier provided in the path and supporting a photocatalyst, the photocatalyst carrier is formed of a metal block having a number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. An air purifier, further comprising a line-of-sight louver that is opaque or translucent to visible light and transmits ultraviolet light outside the photocatalyst carrier. 2. A purifier body having an intake section and an exhaust section, a blower provided in the purifier body to blow air from the intake section to the exhaust section, and a wind from the intake section to the exhaust section in the purifier body. A photocatalyst carrier provided in the path and supporting a photocatalyst, the photocatalyst carrier is formed of a metal block having a number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. An air purifier disposed below a rear window in an automobile, wherein the photocatalyst carrier and the exhaust portion are disposed above the purifier main body, and outside the photocatalyst carrier, toward the rear window. Louvers for gaze shielding,
The angle of the rear window with respect to the horizontal plane is α, the angle of the line-of-sight louvers with respect to the horizontal plane is β, the length from the photocatalyst carrier side edge to the front edge of the line-of-sight louvers is w, and the line-of-sight louvers arranged in a horizontal direction When the pitch between them is p, these α, β, w, and p are p ≦ w (cos β + sin β
/ Tan2α). 3. An angle of inclination of the line-of-sight louver with respect to a horizontal plane is set to 50 to 60 °.
Or the air purifier according to 2. 4. A purifier body having an intake section and an exhaust section, a blower provided in the purifier body to blow air from the intake section to the exhaust section, and a wind from the intake section to the exhaust section in the purifier body. A photocatalyst carrier provided in the path and supporting a photocatalyst, the photocatalyst carrier is formed of a metal block having a number of parallel air holes, and the photocatalyst is supported on the inner surface of the air holes. , The purifier body,
A first main body member and a second main body member which are connected to each other, wherein the photocatalyst carrier is fitted in a frame formed in one main body member in the axial direction of the air through hole, and the photocatalyst is An air purifier characterized in that a carrier is sandwiched between a crosspiece bridged over a frame portion of the one main body member and the other main body member in the axial direction of the air passage hole. 5. The first main body member comprises a main body case, and the second main body member comprises a louver forming body having a louver and fitted to the main body case, and the louver forming body and the louver forming body. The fan housing is sandwiched between the body and a body, and the photocatalyst carrier is sandwiched between a step formed on a side wall of the main body case and an outer wall surface of the blower housing and the louver forming body. 4. The air purifier according to 4. 6. The photocatalyst, wherein the louver forming body is mounted on an upper side of the main body case, the air intake section is provided in a central part of a lower part of the main body case, and the blower housing is mounted on a central part in the main body case. The air purifier according to claim 5, wherein an upper portion of the blower housing is fitted into a hole formed in a center portion of the carrier. 7. A photovoltaic device comprising: a plate-shaped solar cell serving as a power supply of the blower; and a plurality of louvers disposed outside the photocatalyst carrier, wherein the solar cell has a cutout formed in the plurality of louvers. The air purifier according to any one of claims 1 to 6, wherein the air purifier is held by being fitted into the air purifier.