JP3019062B2 - Light purification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light purifying device which is disposed in an air purifying device or the like and purifies pollutants in air using a photocatalyst.

[0002]

2. Description of the Related Art For example, an in-vehicle air purifying device applied to an automobile such as a passenger car is disposed in a narrow place such as in an automobile, and therefore, it is preferable that the air purifying apparatus be miniaturized as much as possible.

[0003] Conventionally, a home air purifier has been provided with a photocatalyst carrier for carrying a photocatalyst for purifying pollutants by irradiating ultraviolet rays, and irradiating the photocatalyst with light containing ultraviolet rays. A light source lamp is provided, which purifies pollutants.

[0004] With respect to the light purifying device of the type in which the photocatalyst carrier is arranged in the flow path, it is preferable that the area where the air flow contacts the photocatalyst is as large as possible. For example, a so-called honeycomb structure having a large number of air holes is preferable. Are known.

Referring to FIG. 10, a conventional light purifying apparatus including a honeycomb structure will be described. The air cleaning device 101 includes a photocatalyst carrier 102 and a columnar light source lamp 103. The photocatalyst carrier 102 is a flat plate 1
It has a flat plate-like shape constituted by a honeycomb structure in which 04 and corrugated plates 105 are alternately stacked, and has a ventilation surface 102a substantially orthogonal to the ventilation flow A. This ventilation surface 102
a is partitioned by arranging a number of ventilation holes 106. The photocatalyst is carried on the flat plate 104 and the corrugated plate 105, which are the inner surface 106a of the ventilation hole 106.

The light source lamp 103 is of a straight tube type extending in one direction, and is arranged close to the photocatalyst carrier 102. In this method, the photocatalyst is carried on the flat plate 104 and the corrugated plate 105 that define the ventilation hole 106, and the contact area between the airflow A and the photocatalyst can be kept large, so that the air purifying device 101 has high purification ability.

[0007]

When the conventional system including the above-mentioned honeycomb structure is applied to an air purifying apparatus for a vehicle, a light source lamp 103 is arranged close to the photocatalyst carrier 102 in order to reduce the size of the apparatus. Need to be done.

However, the inner surface 106 of the ventilation hole 106
a, the photocatalyst is supported on the photocatalyst carrier 102
As a result of disposing the light source lamp 1 near the light source lamp 103 as shown in FIG. 11, the light source lamp 1 is placed on the inner surface 106a of the ventilation hole 106 near the end of the photocatalyst carrier 102 (the left and right ends shown in FIG. 11).
The light from the light source 03 is blocked and a shadow region is formed (in FIG. 11, light is indicated by a two-dot chain line). For this reason,
The purifying ability of the air purifying device 101 cannot be kept sufficiently high.

In order to reduce the shadow area of the inner surface 106a of the ventilation hole 106, a large number of light source lamps 10 are used.
Disposing 3 in opposition to photocatalyst carrier 102 is not preferable because it increases the cost of the apparatus.

[0010] The present invention has been made in view of the above problems, and can reduce the shadow formed on the inner surface of the ventilation hole of the photocatalyst carrier, thereby increasing the purifying ability of the air purifier without increasing the cost. An object is to provide a light purification device.

[0011]

In order to achieve the above object, the invention according to claim 1 has a large number of ventilation holes orthogonal to a pair of opposed ventilation surfaces, and the inner surface of these ventilation holes is provided. A photocatalyst carrier that carries a photocatalyst that purifies pollutants by being irradiated with light, and at least one light source lamp that is disposed close to at least one ventilation surface and irradiates the photocatalyst with light, ventilation surface of the carrier is an optical cleaning apparatus characterized by having a curved surface facing the corresponding light source lamp side.

In the structure of the present invention, at least a part of the ventilation surface of the photocatalyst carrier is curved toward the light source lamp, so that the shadow area formed on the inner surface of the ventilation hole is reduced. Therefore,
As a result, it is possible to increase the area of the inner surface of the ventilation hole that is irradiated with light, thereby increasing the purifying ability of the air purifying device without increasing the cost.

The purification of contaminants by the photocatalyst includes at least one of decomposing odor components in the air, killing bacteria and the like in the air, and inactivating the activity of viruses in the air. The purpose is to include. Further, the present invention is not limited to the contaminants in the air but includes purifying contaminants attached to dust and the like in the air.

Further, the curved surface is intended to include not only an element having a curvature but also an arrangement in which a plurality of linear elements are arranged in a curved shape.

Further, the formation of the curved surface is achieved by pressing and bending the photocatalyst carrier in the form of a flat plate by hand, or when the photocatalyst carrier is previously bent so as to assume a curved shape in a free state. including. For, since the applicable by bending press by hand photocatalyst carrier general purpose, it is easy formation of the curved surface.

According to a second aspect of the present invention, in the light purifying apparatus according to the first aspect, the photocatalyst carrier is formed of a laminate in which flat plates and corrugated plates are alternately laminated.

According to the structure of the present invention, the following operation is obtained in addition to the operation described in the first aspect.

Since the photocatalyst carrier made of a laminate is easily bent with a curvature along the laminating direction, a curved surface can be easily formed by pushing and bending the photocatalyst carrier by hand.

Further, in the photocatalyst carrier comprising a laminate,
If the distance between the flat plates is reduced in order to keep the contact area between the ventilation flow and the photocatalyst wide, light does not reach the inner surface of the ventilation hole, and the amount of light irradiation is significantly reduced. Even if the distance between the holes is small, the area where light is irradiated on the inner surface of the ventilation hole is kept large, so that the contact area between the ventilation flow and the photocatalyst should be large while maintaining sufficient light irradiation on the photocatalyst. Can be. Therefore, the purifying ability of the air purifying device can be kept larger.

The optical purifying apparatus according to claim 3, in claim 1 or 2, the light source lamp is a lamp cylindrical, curved surface of the photocatalyst carrying member so as to face the circumferential surface of the light source lamp It is characterized by being bent.

According to the structure of the present invention, the following operation is exhibited in addition to the operation of the first or second aspect of the present invention.

Since the curved surface is bent so as to face the circumferential surface of the lamp, the area of the shadow formed on the inner surface of the ventilation hole is more reliably reduced. The area increases. Therefore, the purifying ability of the device can be further increased.

When the ventilation surface is a curved surface over substantially the entire surface of the photocatalyst carrier, the light irradiation area of the photocatalyst carrier is, for example, about 1.5 times the light irradiation area of the flat plate-shaped photocatalyst carrier. Becomes

According to a fourth aspect of the present invention, there is provided a light purifying apparatus.
In 2 or 3, the curved surface of the photocatalyst carrier is a circumferential surface centered on the light source lamp.

According to the construction of the present invention, claims 1, 2 or 3
The following effects are exhibited in addition to the effects of the described invention.

Since the ventilation surface of the photocatalyst carrier is a circumferential surface centered on the light source lamp, no shadow can be formed on the inner surface of the ventilation hole. As a result, the area of the inner surface of the ventilation hole that is irradiated with light is further increased.

According to a fifth aspect of the present invention, there is provided a light purifying apparatus.
In 2 or 3, the light source lamp is a straight tube type,
The photocatalyst carrier is of a pair opposing in a state sandwiching the light source lamp, at least one of the photocatalyst carrier is characterized in that it comprises a said curved surface.

According to the construction of the present invention, the first, second or third aspect of the present invention
The following effects are exhibited in addition to the effects of the described invention.

Since the pair of photocatalyst carriers are arranged with the light source lamp interposed therebetween, the light can be efficiently radiated to the photocatalyst carriers with a limited number of light source lamps. Up further.

[0030] The present invention is meant to comprise the case in which only one of the pair of the photocatalyst carrying member has a curved surface, and a case where both of the photocatalyst carrying member has a curved surface.
If both the photocatalyst carrying member, has a curved surface,
As a result of an increase in the area irradiated with light in the region where the photocatalyst is carried on the inner surface of the ventilation hole, the purification ability is further improved.

According to a sixth aspect of the present invention, there is provided a light purifying apparatus.
In 2 or 3, the light source lamp is a straight tube type,
A plurality of the photocatalyst carriers are arranged in parallel, and the plurality of curved surfaces arranged on the same side in the ventilation flow direction of the light source lamp.
Has a respective curved surface, it is characterized in that the bent respectively toward the corresponding light source lamp.

According to the structure of the present invention, claims 1, 2 and 3
The following effects are exhibited in addition to the effects of the described invention.

[0033] Since having a curved surface that vent surface of the photocatalyst carrying member corresponding to each of the light source lamp, a result of the area that can be irradiated with light photocatalyst carrier also the apparatus in which a plurality of the light source lamp is arranged is up, reliably apparatus The purifying ability of the is further improved. Furthermore, since a plurality of light source lamps are arranged on the same side of the photocatalyst carrier, an arrangement space can be reduced, and a power supply structure for the photocatalyst carrier can be intensively laid out.

It is to be noted that the photocatalyst carrier is intended to include a case where the whole is made of one sheet and a case where the whole is constituted by combining a plurality of divided bodies.

According to a seventh aspect of the present invention, there is provided a light purifying apparatus.
In 2 or 3, the light source lamp is a straight tube type,
A plurality of photocatalyst carriers are arranged in parallel, and the photocatalyst carrier is bent in a substantially S shape so as to sew between adjacent light source lamps when viewed from the longitudinal direction of the light source lamp. Things.

According to the structure of the present invention, claims 1, 2 and 3
The following effects are exhibited in addition to the effects of the described invention.

Since the light source lamps are arranged so as to face both the ventilation surfaces of the photocatalyst carrier, the light source lamps are arranged all over the inner surface of the ventilation holes as compared with the case where the light source lamps are arranged so as to face one of the ventilation surfaces. Light irradiation can be performed. In addition, if the layout is a substantially S-shaped layout such as sewing between light source lamps,
It can be easily achieved using a single-plate-shaped photocatalyst carrier.

Here, the term "substantially S-shaped" is intended to include an S-shaped one, an asymmetrical one, and a partially straight one.

[0039]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An air purifying apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of a state in which an air purifying apparatus according to one embodiment of the present invention is arranged in a sedan-type passenger car, as viewed from a side of the passenger car. FIG. 2 is an exploded perspective view, partially broken away, of the air cleaning device according to the embodiment of the present invention.

Referring to FIGS. 1 and 2, the present air cleaning device 1 has an elongated, substantially rectangular parallelepiped outer shape.

The air purifying apparatus 1 is installed behind a rear seat 90 of a passenger car C, for example, on a rear tray 91 which is a shelf for small packages. In addition, as a setting place, in addition to the rear tray 91 provided above the rear seat 90 of the rear seat 90 of the sedan-type passenger car C, a detachable cover that covers the baggage accommodating section behind the rear seat of a wagon-type passenger car or the like is provided. It may be on a cover type rear tray.
Further, at least a part of the air cleaning device 1 may be dropped and installed in an opening or a recess formed in the rear tray.

Since the air purifying device 1 is elongated, for example, C
It can be installed in a narrow place such as in a passenger car.
For example, when installing the air cleaning device 1 in a vehicle,
It is installed along the longitudinal direction (arrow X) along the left-right direction of the vehicle.

In the following description, the present air cleaning device 1
The direction will be described based on the state when is installed in the vehicle. That is, the traveling direction of the vehicle is changed in the front-rear direction (arrow Y
Direction), and the left-right direction (arrow X direction) and the up-down direction (arrow Z direction) with respect to the traveling direction of the vehicle are used as they are.

Referring to FIG. 2, air cleaning device 1 includes a casing 2 for partitioning a flow path through which air flow A flows, a dust collection filter 3 for trapping dust in air flow A, Blower fan 4 for generating a ventilation flow A, a pair of photocatalyst carriers 5 and 5 carrying a photocatalyst for purifying contaminants in the ventilation flow A by being irradiated with light including ultraviolet rays, and a pair of photocatalyst carriers A pair of light source lamps 6 and 6 for irradiating light to the light sources 5 and 5 are provided. The dust filter 3, the blower fan 4, the photocatalyst carriers 5, 5 and the light source lamps 6, 6 are housed in the casing 2. Further, the inside of the casing 2 includes a smoke sensor for detecting the smoke component of the tobacco in the ventilation flow A, a driving circuit for causing the light source lamp 6 to emit light, and the like, and a circuit board unit for controlling the air cleaning device 1 ( (Not shown)). Circuit board (not shown)
Is configured to be supplied with power from a battery of the passenger car C via a cigar socket, for example.

In the air cleaning device 1, the suction port 11 and the air outlet 12 are formed on the upper surface 27 of the casing 2, for example, side by side along the longitudinal direction of the casing 2. That is, the inlet 11 and the outlet 12 are each formed of a large number of small openings, and these small openings are arranged side by side. In FIG. 2, only a part of the small openings is disclosed, and a region where the small opening group is arranged is indicated by a dashed line. The above-mentioned flow path is connected to the suction port 11 and extends vertically, the first area (the area shown on the lower right side of FIG. 2 where the ventilation flow A indicated by the dashed-dotted arrow flows) and the air outlet 12 and A second area (a region illustrated on the left side of FIG. 2 in which the ventilation flow A indicated by a dashed-dotted arrow flows).
The whole is substantially U-shaped. The dust collection filter 3 is disposed directly below the suction port 11 in the first area, and the blower fan 4 is disposed below the suction filter 11. The photocatalyst carriers 5, 5 and the light source lamps 6, 6 are arranged in a pair just below the outlet 12 in the second area.

The casing 2 is a hollow box having a substantially rectangular parallelepiped outer shape, and is made of, for example, a metal plate. The casing 2 is formed to be long in one direction, and has a small vertical dimension. In the casing 2, the front surface 22, the rear surface 23, the right surface 24,
The upper surface 27 is detachably disposed on the upper side of each side surface (in FIG. 2, the air cleaning device 1 with the upper surface 27 and the upper photocatalyst carrier 5 removed). Is shown.). Rear surface 23
Has a lower upper end than the front surface 22, and a rear end region of the upper surface 27 is curved downward. Inside the casing 2, a plate-shaped partition member 28 that connects the front surface 22 and the rear surface 23 is provided. The partition member 28 partitions the above-described first area, which is substantially square in plan view, and the second area, which is substantially rectangular in plan view. The first area and the second area are connected to each other through a communication opening (not shown) formed in a region below the partition member 28.

The dust filter 3 is located immediately below the suction port 11 in the casing 2 and has substantially the same shape and size as the first area in plan view. The dust collection filter 3 has a two-layer structure, and has an upper layer 31 that mainly captures dust by vertically passing air, and a lower layer 32 that carries activated carbon and has a deodorizing function.

The structure of the dust filter 3 is not limited to the above. For example, dust in the air may be electrically charged, and a voltage may be applied so as to capture the charged dust. If necessary, the upper layer 31
At least one of the lower layer 32 and the lower layer 32 may be omitted.

The blower fan 4 is arranged below the dust collecting filter 3 and comprises a sirocco fan. The blower fan 4
The fan is rotationally driven in a predetermined rotation direction by a fan motor (not shown) arranged at the center.

As described above, when the blower fan 4 is driven to rotate by the fan motor (not shown), air is sucked into the center of the blower fan 4 from the upper central opening. The air flows radially outward of the blower fan 4 by the sirocco fan, and is sent out toward the second area along the left-right direction. In the second area, the ventilation flow A changes direction upward while spreading left and right in the introduction chamber defined below the second area, and uniformly flows into the photocatalyst carriers 5 disposed above the second area. I do.

As described above, the photocatalyst carriers 5, 5 are a pair, and the upper photocatalyst carrier 51 disposed above the pair of light source lamps 6, 6 and the pair of light source lamps 6, 6
, And a lower photocatalyst carrier 61 disposed below the light source lamps 6.

The upper photocatalyst carrier 51 and the lower photocatalyst carrier 61 are a honeycomb structure having the same structure. In the case of the upper photocatalyst carrier 51, the upper and lower surfaces 54b and 54a are respectively connected to the ventilation surfaces 52b and 52a. It has become
A pair of ventilation surfaces 52a, 52b and the ventilation surfaces 52a, 52
, 2b. The upper photocatalyst carrier 51 is formed in a thin shape and has a size substantially the same as the cross section of the second area of the flow path in plan view. In the rear area, the ventilation surfaces 52a and 52b Curved to the side.

The honeycomb structure will be described using the upper photocatalyst carrier 51. The honeycomb structure is composed of, for example, a large number of parallel flat plates 5 formed of a vinyl chloride resin.
6 and a corrugated plate 57 disposed between the adjacent flat plates 56, 56.
And The honeycomb structure includes a flat plate 56 and a corrugated plate 5.
7 is formed in a plate shape having a lower surface 54a and an upper surface 54b extending in the laminating direction, and a pair of flat plates 56, , 54b are partitioned. On the inner surface 58 of each ventilation hole 53, that is, the surface of the flat plate 56 and the corrugated plate 57 that define the ventilation hole 53,
A photocatalyst that decomposes odorous components and the like when irradiated with light, particularly ultraviolet light, is supported. The stacking direction of the photocatalyst carriers 51 and 61 is included in a plane orthogonal to the longitudinal direction of the light source lamps 6 and 6.

The photocatalyst is a substance that absorbs light such as ultraviolet light and gives the energy to a reactant to cause a chemical reaction. The main functions of this photocatalyst include a deodorizing function by removing odor components, a function of decomposing contaminants that are not odor components, and a function of disinfecting microorganisms and inactivating viruses (so-called sterilization and antibacterial functions). However, these functions are all achieved by the oxidative decomposition function of the photocatalyst.

Here, as a photocatalyst having an oxidative decomposition function, titanium oxide (Ti) having an anatase type crystal structure is used.
O ₂ ). Titanium oxide having this anatase-type crystal structure is preferable in that it can exhibit high purification ability even with weak ultraviolet light. Further, zinc oxide (ZnO), tungsten oxide (WO ₃ ), or the like may be used.

The light source lamp 6 is, for example, a straight tube type cold cathode.
Type fluorescent lamp. As the light source lamp 6, a photocatalyst is used.
It is enough if it can emit light that can be excited
However, it emits light containing ultraviolet light with a wavelength of 320 to 420 nm.
If possible, TiO _TwoUtilizing photocatalysts such as ZnO and ZnO
To efficiently purify pollutants
It is preferred in that respect. In particular, cold cathode fluorescent lamps
Generally smaller and longer lasting than fluorescent lamps
No.

The two light source lamps 6, 6 are parallel to each other,
The direction in which the central axis extends extends along the longitudinal direction of the casing 2. The two light source lamps 6, 6 are arranged at intervals in the front-rear direction so as to cooperate with each other to irradiate substantially the entire surface 54a, 64a on one side of the photocatalyst carriers 51, 61. . in this way,
The two light source lamps 6, 6 can illuminate the lower surface 54 a of the upper photocatalyst carrier 51 above it and the upper surface 64 a of the lower photocatalyst carrier 61 arranged below the light source lamp 6,
Light can be illuminated efficiently using the light applied to the entire periphery of the light source lamp 6. The photocatalysts of the pair of photocatalyst carriers 51 and 61 are activated by receiving mainly ultraviolet rays of the light from the light source lamp 6 to purify pollutants such as odorous components.

FIG. 3 is a schematic sectional view taken along the line II of FIG. 2, showing the positional relationship between the photocatalyst carrier and the light source lamp.
The upper photocatalyst carrier 51 is arranged in the air cleaning device 1 in a state where a flat plate-shaped photocatalyst carrier is pressed and bent in the laminating direction thereof. 2 and 3, with the rear end of the upper photocatalyst carrier 51 applied to the rear end of the casing 2 in which the lower photocatalyst carrier 61 and the pair of light source lamps 6, 6 have already been arranged, When the upper photocatalyst carrier 51 is pressed rearward, the rear region of the upper photocatalyst carrier 51 is curved accordingly. In that state, the upper surface 2
7 is set in the air cleaning device 1 and the upper photocatalyst carrier 51 is held in the air cleaning device 1 in a curved state.

Referring to FIG. 3, as described above, lower photocatalyst carrier 61 is a honeycomb structure formed in a flat plate shape, and both upper and lower surfaces 64b, 64a have ventilation surfaces 62b, 64b.
62a, a pair of ventilation surfaces 62a, 62b,
A large number of ventilation holes 6 orthogonal to the ventilation surfaces 62a, 62b
, 63,... Lower photocatalyst carrier 61
Is formed to have a substantially rectangular planar shape, and has substantially the same size as the cross section of the second area of the flow path.

The ventilation surfaces 52 a, 5 of the upper photocatalyst carrier 51
2b has, in its rear area, curved surfaces 55a and 55b curved toward the light source lamp 6 toward the rear end. The curved surfaces 55 a and 55 b of the photocatalyst carrier 51 are curved so as to face the circumferential surface of the light source lamp 6.

The curved surface 55a of the photocatalyst carrier 51,
The formation of 55b may be previously curved so as to assume a curved shape in a free state.

According to the present embodiment, the photocatalyst carrier 51
Since the ventilation surfaces 52a and 52b are curved toward the light source lamp 6, the shadow area formed on the inner surface 58 of the ventilation hole 53 is reduced (light is shown by a two-dot chain line in FIG. 3). Accordingly, the area of the inner surface 58 of the ventilation hole 53 that is irradiated with light can be increased, and as a result, the purifying ability of the air purifying device 1 can be increased without increasing the cost.

The photocatalyst carrier 5 composed of a laminate is
Since it is easy to bend with a curvature along the stacking direction, if the photocatalyst carrier 5 is pushed and bent by hand, the curved surfaces 55a, 55b
Is easy to form.

Since the curved surfaces 55a and 55b are formed by the photocatalyst carrier 5 made of a laminate, the flat plates 56 and 55
Even if the interval between 56 is small, the area where light is irradiated to the inner surface 58 of the vent hole 53 is kept large. As a result, the contact area between the ventilation flow A and the photocatalyst is increased while the light irradiation amount to the photocatalyst is sufficiently maintained. Things. Therefore, the purifying ability of the air purifying device 1 can be kept larger.

Since the curved surfaces 55a and 55b are curved so as to face the circumferential surfaces of the light source lamps 6 and 6, the area of the shadow formed on the inner surface 58 of the ventilation hole 53 is more reliably reduced. The light irradiation area of the photocatalyst carrier 5 from the light source lamp 6 is further increased. Therefore, the purifying ability of the air purifying device 1 can be further increased.

FIG. 4 is a diagram showing another embodiment of the present invention. 4 differs from the embodiment of FIG. 1 in that the upper photocatalyst carrier 51E is not a curved surface, but
The point is that bent flat surfaces 59a and 59b facing the light source lamp 6 are provided. The photocatalyst carrier 51 is configured by connecting two flat plates 81E, 81E. The bent flat surfaces 59a and 59b are formed of the respective flat surfaces of the respective flat plates 81E connected to each other via the bent portion 60. The bent flat surfaces 59a and 59b of the upper photocatalyst carrier 51E may be formed in advance so as to assume a bent shape in a free state.

In the embodiment shown in FIG. 4, the ventilation surfaces 52a and 52b of the photocatalyst carrier 51 are bent toward the light source lamp 6 as in the embodiment shown in FIG. The area of the shadow formed on the inner surface 58 of the pore 53 is reduced (light is shown by a two-dot chain line in FIG. 4). Accordingly, the area of the inner surface 58 of the ventilation hole 53 that is irradiated with light can be increased, and as a result, the air cleaning device 1 can be increased without increasing the cost.
Can increase the purification ability. Further, since the bent flat surfaces 59a and 59b are provided on the upper photocatalyst carrier 51, the positional relationship between the light source lamp 6 and the ventilation surfaces 52a and 52b can be set with high accuracy.

In the embodiment of FIGS. 1 and 4,
Although two light source lamps 6 were arranged, the present invention is not limited to this.
For example, one may be arranged.

In the above embodiment, only the upper photocatalyst carrier 51 is bent toward the light source lamp 6, but the present invention is not limited to this configuration.

FIG. 5 is a diagram showing another embodiment of the present invention. The embodiment of FIG. 5 differs from the embodiment of FIG. 1 in that curved surfaces 55Aa and 55Ab are provided not only in the rear region of the photocatalyst carrier 51A but also in substantially the entire region. Not only the body but also the curved surfaces 55Aa, 5A on both photocatalyst carriers 51A, 61A.
5Ab, 65Aa and 65Ab are provided. In this embodiment, the curved surfaces 55Aa, 55Ab,
Like the curved surfaces 55a and 55b, the 65Aa and 65Ab are curved so as to increase the degree of opposition.

In the embodiment shown in FIG. 5, in addition to the functions and effects similar to those described in the embodiment shown in FIG. 1, both photocatalyst carriers 51A and 61A have curved surfaces 55Aa and 5A.
Since it has 5Ab, 65Aa, and 65Ab, the area of the inner surface 58 of the ventilation hole 53 where the photocatalyst is supported is further increased in the area irradiated with the ultraviolet light, so that the purification performance of the air cleaning device 1 is further improved. This has the operational effect of performing

Further, the present invention is not limited to the embodiment of FIG. 1, the embodiment of FIG. 4, and the embodiment of FIG. 5, and only the lower photocatalyst carrier may be curved or bent toward the light source lamp. .

FIG. 6 is a diagram showing still another embodiment of the present invention. In this embodiment, as in the embodiment of FIG. 1, two light source lamps 6A and 6B are arranged in parallel. The embodiment shown in FIG. 6 differs from the embodiment shown in FIG. 1 in that the photocatalyst carrier 5B is arranged in a substantially three-shape on the same side of the light source lamps 6A, 6B in the direction of the ventilation flow A. is there. The photocatalyst carrier 5B is arranged downstream of the light source lamps 6A, 6B.

The photocatalyst carrier 5B arranged in a substantially three-letter shape
Converts a pair of divided bodies 51B, 51B of the same shape having curved surfaces 55Ba, 55Bc into curved surfaces 55Ba, 55Bc, respectively.
55Bc is combined with the light source lamps 6A and 6B facing each other. Both divided bodies 51B, 51B
Are joined by a seal (not shown). The ventilation surface 52Ba of the photocatalyst carrier 5B is
It is constituted by 1B curved surfaces 55Ba and 55Bc. The curved surfaces 55Ba and 55Bc are provided with the respective light source lamps 6.
A, 6B, and is suitable for the divided bodies 51B, 51B.
Is formed over the entire area.

The embodiment shown in FIG. 6 has the following functions and effects in addition to the functions and effects similar to those described in the embodiment of FIG. That is, since the ventilation surface 52Ba of the photocatalyst carrier 5B has the curved surfaces 55Ba, 55Bc corresponding to the respective light source lamps 6A, 6B, the photocatalyst carrier is also provided in the air cleaning device 1 in which a plurality of light source lamps 6A, 6B are arranged. As a result of an increase in the area that can be irradiated with light to 5B, an effect of reliably improving the purifying ability of the air purifying device 1 is achieved. Further, since the two light source lamps 6A and 6B are arranged on the same side of the photocatalyst carrier 5B, the arrangement space can be reduced, and the photocatalyst carrier 5B
The power supply structure to the power supply can be intensively laid out.

In the embodiment shown in FIG. 6, the two divided bodies 51B, 51B are combined to form the substantially three-shaped photocatalyst carrier 5B. However, the present invention is not limited to this embodiment. May consist of one piece. In the embodiment of FIG. 6, the photocatalyst carrier 5B has two curved surfaces 55Ba, 55Ba per one ventilation surface 52Ba.
Although the shape is substantially three-shaped having Bc, the present invention is not limited to this mode. For example, the photocatalyst carrier 5B composed of a large number of divided bodies 51B has a shape in which the substantially three-shape is continuous. , The curved surfaces 55Ba, 55Bc,... Should face the corresponding light source lamps 6A, 6B. In the embodiment of FIG. 6, the photocatalyst carrier 5B is arranged downstream of the light source lamps 6A, 6B. However, the present invention is not limited to this mode, and the photocatalyst carrier 5B is arranged upstream of the light source lamps 6A, 6B. May be.

FIG. 7 shows the light source lamp viewed from the longitudinal direction.
FIG. 13 is a diagram showing still another embodiment of the present invention. When viewed from the longitudinal direction of the light source lamps 6A and 6B, the photocatalyst carrier 5C is curved in a substantially S-shape so as to sew between two straight tube-type adjacent light source lamps 6A and 6B arranged in parallel. ing. The embodiment of FIG. 7 has the following functions and effects in addition to the functions and effects similar to those described in the embodiment of FIG. That is, both ventilation surfaces 5 of the photocatalyst carrier 5C are provided.
Since the light source lamps 6A and 6B are arranged so as to oppose the first and second ventilators 2a and 52b, the ventilation holes 5 are all over as compared with the case where the light source lamps 6 are arranged so as to oppose only one ventilation surface.
3 can be irradiated with light. In addition, a substantially S-shaped layout in which the space between the light source lamps 6A and 6B is sewn can be easily achieved by using a single-plate-shaped photocatalyst carrier 5C.

In the embodiment shown in FIG. 7, two light source lamps 6A, 6B are arranged. However, for example, a large number of light source lamps 6A, 6B,. .. Between the light source lamps 6A, 6B,.
C may be arranged so as to sew. Further, in the embodiment of FIG. 7, the photocatalyst carrier 5C is constituted by one photocatalyst carrier. However, the present invention is not limited to this mode, and a plurality of divided bodies having curved surfaces facing in opposite directions to each other. May be combined to form a substantially S-shape.

Although the embodiments shown in FIGS. 5 to 7 show the case where the photocatalyst carriers 51A, 5B and 5C have curved surfaces, the present invention is not limited to this embodiment. FIG.
(C) is a schematic sectional view showing still another embodiment of the present invention. Referring to FIG. 8A, the upper photocatalyst carrier 51F is configured by connecting two flat plates 81F and 81F, and the lower photocatalyst carrier 61F is also connected to the upper photocatalyst carrier 51F in the same manner as the upper photocatalyst carrier 51F. The two flat plates 82F are connected to each other. The photocatalyst carrier 5F is configured by combining the upper photocatalyst carrier 51F and the lower photocatalyst carrier 61F so as to have a rhombic cross section that covers the light source lamp 6. The photocatalyst carriers 51F and 61F are provided with bent flat surfaces facing the light source lamp 6 side. The bent flat surfaces are each flat plate 81F, 81F, each flat plate 82.
F, 82F. The flat plates 81F and 81F are connected to each other via a bent portion 60F. The flat plates 82F and 82F are connected to each other via a bent portion 70F.

Next, referring to FIG. 8 (b), the photocatalyst carrier 5G is disposed in a substantially M-shape on the same side of the light source lamps 6A and 6B in the direction of the ventilation flow A. The photocatalyst carrier 5G, which is disposed in a substantially M-shape, is formed by forming a pair of divided bodies 51G and 51G having the same flat shape with bent flat surfaces toward the light source lamps 6A and 6B. It is configured by combining them in the state where they are located. The bent flat surface of each divided body 51G is composed of two flat surfaces connected to each other via a bent portion 60G.

Referring to FIG. 8 (c), the photocatalyst carrier 5H is formed by
Two straight tube-type adjacent light source lamps 6 arranged in parallel
It is bent in a crank shape so as to sew between A and 6B.
The ventilation surface of the photocatalyst carrier 5H has a bent flat surface composed of the flat surfaces of the flat plates 81H, 81H,... Connected to each other via the bent portion 60H.

FIG. 9 is a diagram showing still another embodiment of the present invention. The embodiment of FIG. 9 differs from the embodiment of FIG. 1 in that the photocatalyst carrier 5D has a hollow cylindrical shape, and in the air cleaning device 1, the flow path is from the end face side of the photocatalyst carrier 5D. The point is that it is formed in a ventilation hole 53D provided in the entire peripheral surface of the photocatalyst carrier 5D. Therefore, the ventilation surfaces 52Da, 52Db of the photocatalyst carrier 5D
Is a circumferential surface as a curved surface centering on the light source lamp 6, and as shown in FIG.
It is constituted by a honeycomb structure laminated in the circumferential direction.

In the embodiment shown in FIG. 9, in addition to the functions and effects similar to those of the embodiment shown in FIG.
Since the ventilation surface 52Da of D is a circumferential surface centered on the light source lamp 6, no shadow can be formed on the inner surface 58D of the ventilation hole 53D. As a result, the area of the inner surface 58D of the ventilation hole 53D which is irradiated with light is further increased. It works. Further, since a large inner peripheral surface can be obtained, the light source lamp 6 can be arranged close to the entire surface of the photocatalyst carrier 5D. Therefore, the air cleaning ability of the air cleaning device 1 is improved.

The present invention is not limited to the above embodiments. For example, when forming a curved flat surface, the divided bodies may be connected to each other. The body may be bent and used. In addition, even if the air conditioner is not disposed in the air purifying device, it may be disposed in an air conditioner having another air purifying function. In addition, various changes can be made within the scope of the present invention.

[0085]

According to the first aspect of the present invention, since the area of the shadow formed on the inner surface of the ventilation hole is reduced, the area of the inner surface of the ventilation hole which is irradiated with light can be increased, resulting in an increase in cost. The purifying ability of the air purifying device can be increased without care.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the photocatalyst carrier made of a laminate can be easily bent in a direction perpendicular to the laminating direction. If the carrier is pressed and bent by hand, it is easy to form a curved surface.

Even if the distance between the flat plates is narrowed, the area where light is irradiated to the inner surface of the vent hole is kept large. The contact area can be increased. Therefore, the purifying ability of the air purifying device can be kept larger.

According to the third aspect of the invention, in addition to the effects of the first or second aspect, the curved surface is bent so as to face the circumferential surface of the light source lamp. As a result, the area of the shadow formed on the inner surface is more reliably reduced, so that the cleaning ability of the apparatus can be further increased.

According to the invention described in claim 4, according to claim 1,
In addition to the effect of the invention described in 2 or 3, in addition to the fact that the ventilation surface of the photocatalyst carrier is a circumferential surface centered on the light source lamp, no shadow can be formed on the inner surface of the ventilation hole, so that the inner surface of the ventilation hole is irradiated with light. Area is further increased.

According to the invention set forth in claim 5, claim 1 and claim 1
In addition to the effects of the invention described in 2 or 3, since the pair of photocatalyst carriers are arranged with the light source lamp interposed therebetween, the light can be efficiently radiated to the photocatalyst carriers with a limited number of light source lamps, increasing the cost. Without purifying, the purifying ability of the device can be further improved.

According to the invention set forth in claim 6, according to claim 1,
In addition to the effect of the invention of 2 or 3, because it has a curved surface that vent surface of the photocatalyst carrying member corresponding to each of the light source lamp, light irradiation photocatalyst carrier also the apparatus in which a plurality of the light source lamp is arranged As a result of the increase in the area, the purifying ability of the apparatus is surely further improved. In addition, as a result of arranging the plurality of light source lamps on the same side of the photocatalyst carrier, the arrangement space can be reduced, and the power supply structure to the photocatalyst carrier can be intensively laid out.

According to the invention described in claim 7, according to claim 1,
In addition to the effect of the invention described in 2 or 3, since the light source lamp is arranged so as to face both ventilation surfaces of the photocatalyst support, it is compared with the case where the light source lamp is arranged so as to face one ventilation surface. Thus, light can be radiated all over the inner surface of the ventilation hole. In addition, a substantially S-shaped layout in which the light source lamps are sewn can be easily achieved by using a single-plate-shaped photocatalyst carrier.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of a state in which an air purifying apparatus according to an embodiment of the present invention is arranged in a sedan-type passenger car, as viewed from a side of the passenger car.

FIG. 2 is a partially exploded perspective view of the air cleaning device according to the embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view taken along a line II of FIG. 2, showing an arrangement relationship between a photocatalyst carrier and a light source lamp.

FIG. 4 is a schematic sectional view showing another embodiment of the present invention.

FIG. 5 is a schematic sectional view showing another embodiment of the present invention.

FIG. 6 is a schematic sectional view showing still another embodiment of the present invention.

FIG. 7 is a schematic sectional view showing still another embodiment of the present invention.

FIG. 8 is a schematic sectional view showing still another embodiment of the present invention.

FIG. 9 is a schematic sectional view showing still another embodiment of the present invention.

FIG. 10 is a schematic perspective view showing an example of a light purifying device in a conventional type air purifying device.

FIG. 11 is a schematic sectional view showing an example of a light purifying device in a conventional type air purifying device.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 air cleaning device 2 casing 3 dust collecting filter 4 blower fan 5, 5B, 5C, 5D, 5F, 5G, 5H photocatalyst carrier 6, 6A, 6B light source lamp 11 suction port 12 outlet 28 partition member 31 upper layer 32 lower layer 51 , 51E Upper photocatalyst carrier 51B, 51G Divided body 52a, 52b, 52Ba, 52Da, 52Db Vent surface 53, 53D Vent hole 55a, 55b, 55Aa, 55Ab, 55Ba, 55
Bc curved surface 56 flat plate 57 corrugated plate 58, 58D inner surface 59a, 59b, 59a, 59b bent flat surface 60, 60F, 60G, 60H, 70F bent portion 61, 61A, 61F lower photocatalyst carrier 62a, 62b ventilation surface 65Aa , 65Ab Curved surface 71 Cigar socket 81F, 81H, 82F Flat plate 90 Rear seat 91 Rear tray A Ventilation flow

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A61L 9/00 A61L 9/18 B01D 53/86 ZAB B01J 35/02

Claims (7)

(57) [Claims] A plurality of ventilation holes (53, 53D) orthogonal to a pair of opposed ventilation surfaces (52a, 52b) are provided.
D) (5, 51, 51A, 5B, 5C, 5D , 6)
1,61A) and at least one light source lamp (6,6A, 6B) arranged in proximity to at least one ventilation surface (52a, 52Ba, 52Da) and irradiating the photocatalyst with light. Ventilation surface of carrier (5,51,51A, 5B, 5C, 5D , 61,61A)
(52a, 52b) (52Ba) (52Da, 52Db) (62a, 62b) have curved surfaces (55a, 55b) (55Aa, 55A) facing the corresponding light source lamps (6, 6A, 6B).
b) (65Aa, 65Ab) ( 55Ba) (55Bc) optical purifying apparatus, comprising a. 2. The photocatalyst carrier (5, 51, 51A, 5B, 5C, 5D, 61,
2. The air purifying apparatus according to claim 1, wherein the air purifier comprises a laminate in which flat plates and corrugated plates are alternately laminated. 3. The light source lamp (6, 6A, 6B) is a cylindrical lamp, and the photocatalyst carrier (5, 51, 51A, 5B, 5C, 5D, 6
1,61A) curved surface (55a, 55b) (55Aa, 55Ab) (65Aa, 65Ab) (55B
3. The light purifying device according to claim 1, wherein a) (55Bc) is bent so as to face a circumferential surface of the light source lamp (6, 6A, 6B). 4. The curved surface (52 Da, 52D) of the photocatalyst carrier (5D).
4. A light purifying device according to claim 1, wherein b) is a circumferential surface centered on said light source lamp. 5. The light source lamp (6) is of a straight tube type, and the photocatalyst carriers (51A, 61A) are a pair of opposing members sandwiching the light source lamp (6). Of the photocatalyst carrier (51A, 61A)
(55Aa, 55Ab) (65Aa, 65Ab) optical purifying apparatus according to claim 1, 2 or 3, wherein in that it comprises. 6. The light source lamps (6A, 6B) are of a straight tube type, and a plurality of the light source lamps (6A, 6B) are arranged in parallel.
(A) Multiple curved surfaces (55Ba, 55Bc) arranged on the same side in the direction
Has a respective curved surface (55Ba, 55Bc) is the corresponding light source lamp (6A, 6B)
The light purifying device according to claim 1, wherein each of the light purifying devices is bent toward the first direction. 7. The light source lamp (6A, 6B) is a straight tube type, a plurality of which are arranged in parallel, and the photocatalyst carrier (5C) is arranged in the longitudinal direction of the light source lamp (6A, 6B). 4. The light purifying device according to claim 1, wherein the light purifying device is bent in a substantially S shape so as to sew between adjacent light source lamps (6A, 6B).