JPH11306853A - Ceiling-mounted luminaire with air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire with an air cleaner, which increases efficiency of air cleaning, aims at lowering the level of pollution in the central part of the room and which is mounted in close adhesion with the ceiling. SOLUTION: A case seals except for an air intake 1 and an air outlet 2 provided on the periphery integrally with the luminaire mounted in close adhesion to the ceiling. the air cleaner convects the air, mainly in the direction of the ceiling to increase efficiency of cleaning and reduced pollution in the central part of the room. Positive use of a photoactive catalyst enables decomposition of tobacco smoke and poisonous fumes as well as dust collection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated lighting device mounted on a ceiling and an air purifier, which is used as a lighting device and, at the same time, a fine dust or odor molecule floating in a room as an air purifier. And remove toxic gases.

[0002]

2. Description of the Related Art In a conventional lighting fixture with an air purifier mounted in close contact with a ceiling, since a suction port is provided at a lower central portion, convection of air from an outlet at a peripheral portion gathers at the central portion, and convection is reduced. If it is strong, the minute dust in the room is collected in the living space near the center and then gradually cleaned, and it has a sufficient effect as an air purifier in that the space where people live is diffused and contaminated. I haven't.

As a result of arranging a filter used for purifying air downward, dust collected on the filter is likely to fall. In addition, the area and shape of the filter are limited, and if the area of the filter is increased or the shape of the filter is reduced, the illuminance of illumination is reduced or an external problem occurs.

In order to make the structure thinner, a sirocco fan which is a multi-blade fan of an air purifier is arranged inside the annular fluorescent lamp, so that the diameter of the sirocco fan is reduced.
Further, since the blowing direction is not narrowed, the blowing direction is diffused, and a large convection cannot be generated due to a small force of the blowing flow. As a result, large convection was not possible, and the speed and effect of cleaning were limited.

[0005] In order to generate a larger convection, the rotation speed of the sirocco fan is excessively increased, and a loud noise is generated due to the generation of a vortex in an opening having a hole.

FIG. 28 is a Japanese Patent Application Laid-Open No. 60-2505.
This shows an example of a conventional ceiling-mounted lighting device with an air purifier that is attached in close contact with the ceiling shown in FIG.
An annular fluorescent lamp 131 is provided around the air purifying unit 130 and is surrounded by a translucent cover 133 having a suction port 132 formed therein. The suction port 132 having the filter 134 is formed at the center of the lower part of the translucent cover 133 and is directly connected to the air cleaner 130. The outlet 135 is provided as a hole in the peripheral portion, and the sirocco fan 13 of the air cleaning unit 130 is provided.
The air flow by 6 hits the periphery of the outlet 135 at the distant peripheral portion, and the blow-off flow whose direction has been diffused and the momentum has diminished blows out. At this time, noise is generated due to the generation of the vortex.

FIG. 29 is a sectional view of an experimental example in which the configuration of the conventional example shown in FIG. 28 is reproduced as faithfully as possible. The annular fluorescent light has been removed. However, diffusion and momentum deterioration in the direction of the blowout flow due to the removal are rather small. In addition, large sirocco fans 137 and motors 138, which are multi-blade fans, are used. Incidentally, those used in the embodiments of the present invention are also used. Filter 14 is placed in the lower central suction port 139.
0 is provided in the upper part of the peripheral portion of the outlet 141 formed by a plurality of holes.

[0008] When an experiment was conducted with the expected sirocco fan airflow generation power of the conventional example, as a result, when the motor 138 of the sirocco fan 137 was driven with a somewhat low input, as shown in FIG. Main convections 142, 143 up to 139 occur. These convections 142, 143 form a small loop. When smoke is generated from the sources 144 and 145 with a thermal power equivalent to one cigarette, the smoke diffuses relatively upward, but the convection 14
2,143, and the effect of air cleaning is reduced. In particular, when the temperature of the room is high or the temperature of the ceiling side is high, the effect is remarkably lost.

In the case of driving with a large power irrespective of the noise level, in this experiment, the sirocco fan 137 was driven with a normal input because of its ability. However, as shown in FIG. 31, relatively large convections 146 and 147 are generated. The rising smoke 148 generated from the source 144 is drawn to the center of the room when entering by the negative pressure of the convection 147, and gradually becomes diffused after the center of the room, which is the main living space of people, is contaminated by diffusion. It is cleaned.

FIG. 32 shows the result of a smoke test of a conventional lighting fixture with a ceiling-mounted air purifier. The smoke generated from the smoke sources 149 and 150 shown in FIGS.
32, 153 and 154, which are the measurement results of 51 and 152.
It takes time to be cleaned as the convection becomes weaker due to contamination by diffusion. The measurement results of the measuring devices 155 and 156 at a distance of 1.5 meters from the central part in FIGS. 30 and 31 are shown by 157 and 158 in FIG. 32, and the contamination state continues for a longer time.

[0011] Further, since the suction port 139 is formed in a downward direction, dust accumulated under the filter 140 sometimes drops, which poses a problem in hygiene. Also, despite the exchange of filters at high places, sufficient attention has not been paid to the work.

When a ring-shaped fluorescent lamp, which is an illuminating lamp, is arranged, it is necessary to place a filter suitable for practical use and a rectangular filter which is easy to produce under the ring-shaped fluorescent lamp in consideration of replacement. Will hinder.

[0013]

The present invention does not cause a relatively large convection of air in the direction of the ceiling to contaminate the living space at the center of the room, thereby reducing noise and increasing the efficiency of cleaning. At the same time, it prevents dust from falling out of the filter and facilitates replacement.

[0014]

In order to achieve the above-mentioned object, in a lighting fixture with a ceiling-mounted air purifier according to the present invention, a plurality of convections of air are collected in a direction toward a ceiling without being collected from below a central portion. In order to generate this, a suction port of an air purifier to be suspended in close contact with the ceiling at the center of the room is provided at the periphery of the lighting equipment.

Further, in order to positively generate air convection in the ceiling direction, a plurality of squeezed outlets are provided at the peripheral edge.
A fine mesh with a large aperture ratio may be placed at the outlet.

The outlet is provided continuously to the straightening pipe of the casing of the sirocco fan or the multi-blade fan, and the narrowed outlet is directed obliquely downward.

[0017] Suction ports for inhaling air are provided at two opposing locations of the rectangular main body of the lighting fixture with an air purifier. Further, a narrow outlet for discharging air is provided at another two opposite locations.

Alternatively, suction ports for sucking air are provided at two opposing positions of a circular main body of the lighting fixture with an air purifier. In addition, a narrow outlet for discharging air is provided at another two opposing locations.

An opening extending from the suction port and a suction opening of the casing of the multi-blade fan are provided at a lower portion of the resin molded body having the casing of the multi-blade fan. Seal tightly.

Alternatively, an opening extending from the suction port and a suction opening of the casing of the multi-blade fan are provided at a lower portion of a resin molded body having a casing of the multi-blade fan, and a lower peripheral portion of the resin molded body has a downwardly convex shape. The cover is tightly fixed, and the area other than the inlet and outlet is sealed.

[0021] Alternatively, the casing of the multi-blade fan is contained inside, except for the suction port and the outlet port, and the lower side is sealed with a light-transmitting cover under the lighting fixture, and the upper side is sealed with another upper cover. The air enters the closed space from the suction port, enters the suction opening of the casing of the multi-blade fan from the space, and exits through the throttled outlet.

Alternatively, the casing includes a multi-blade fan inside, except for a suction port and a discharge port. The lower side is a light-transmitting cover at the lower part of the lighting fixture, and the upper side is an upper cover having a hole at the center. A sealing material is provided between the casings of the multi-blade fan to hermetically seal.

Alternatively, the casing includes a multi-blade fan inside, except for a suction port and a discharge port. The lower side is a translucent cover of a lighting fixture, and the upper side is a side cover and a sealing material provided on the upper end thereof. Press against the ceiling and seal.

Alternatively, the casing of the multi-blade fan is included inside, except for the suction port and the blow-out port, and is sealed with a partition plate above the illuminating lamp and an upper upper cover. At this time, a sheet may be stuck to the partition plate to make the sealing more reliable.

Alternatively, except for the inlet and the outlet,
A sealing material is provided and sealed between the partition plate above the lighting, the upper cover with a hole in the center, and the casing of the multi-blade fan. A sheet may be attached to the partition plate.

The casing of the multi-blade fan is shaped so as to have a lower outer peripheral corner, and is disposed close to the inside diameter of the annular fluorescent lamp. The rectifying tube of this casing passes over the annular fluorescent lamp and is continuously connected to the outlet. And connect.

It is preferable that the height of the rectifying tube be lower than the height of the casing of the multi-blade fan so that the rectifying tube can be easily arranged on the annular fluorescent lamp. In response to the height drop,
It is advisable to increase the width of the flow straightening tube.

Except for the case where the casing of a multi-blade fan is made of a resin molded body, a sealing material is provided around the outlet and the inlet, and the upper cover is closely attached to ensure a tight seal.

The hanger fixed to the ceiling by screws is detachably fixed to the hooks on the peripheral edge to support the whole.

When a resin molded body is used, it is preferable that hooks for fixing the hanger are provided outside the casing of the multi-blade fan at two opposing locations below the lower edge of the resin molded body.

When a filter having a photoactive catalyst is used, the light of a fluorescent lamp is directly or indirectly irradiated in a closed space. At this time, it is preferable to apply a color having high reflectance to the surface of the casing of the multi-blade fan.

To make the filter easily replaceable,
A storage section that allows the filter to be taken in and out of the suction port is provided.

In the case of a circular ceiling-mounted lighting device with an air purifier, the entrance of the storage section may be formed in an arc shape.

When the filter is provided not in the suction port but in the vicinity of the suction opening at the lower part of the casing of the multi-blade fan, it is not necessary to provide a storage portion in the suction port.

When the filter is provided close to the suction opening, a suction port may be provided at the upper part of the peripheral edge of the light-transmitting cover.

It is preferable to provide a resin molded component having a configuration narrowed diagonally downward at the outlet of the resin molded body having the casing of the multi-blade fan.

A substrate provided with electric parts necessary for lighting of the lighting equipment and operation of the air cleaner is disposed in close contact with a lower portion of the resin molded body outside the casing of the multi-blade fan and hermetically sealed.

Then, a switch string is pulled out of the resin molded body from a switch component for lighting a lighting device or operating an air cleaner provided on the substrate.

The sensor is provided on the lower surface of the substrate and is exposed downward at the peripheral portion, and is exposed to the outside at the outermost peripheral portion of the substrate while being separated from the internal sealed space.

An insulated electric cord having a connector is provided on a hanger fixed to the ceiling with screws, and is electrically connected to wiring equipment on the ceiling.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples with reference to the drawings. FIG. 1 is a perspective view of a lighting apparatus with a ceiling-mounted air purifier according to the present invention, and FIG. 2 is a sectional view of FIG. Except for the inlet 1 and the outlet 2, the resin molded body 5 having the casing 4 of the multi-blade fan 3 and the light-transmitting cover 6 are hermetically sealed.

When the multi-blade fan 3 rotates, the air that has passed through the filter 7 at the suction port 1 enters the sealed space 8, further enters the suction opening 9 of the casing 4, and is rotated by the motor 10. It blows out vigorously from the outlet 2 squeezed obliquely downward, which is continuous with the straightening pipe 11 of the casing 4 surrounding the fan 3. Even if the outlet 2 has a fine mesh or the like with a large aperture ratio, the noise level can be kept low.

The multi-blade fan 3 has a relatively large diameter so that the blown air flow cannot be increased.
2 cannot be accommodated within the inner diameter of the annular fluorescent lamp 12.

Further, in order to make the overall structure thin, the lower part of the outer periphery of the casing 4 of the resin molded body 5 has a cornered shape 1.
3, and arranged close to the inner diameter of the annular fluorescent lamp 12, in the case of a square as in this embodiment, the width and height of the filter 7 of the suction port 1 are relatively large without increasing the overall width so much. Even if it is increased, the overall thickness can be reduced. Needless to say, the upper surface portion 17 of the resin molded body 5 mainly means one integrated using another resin plate or metal plate.

In order to closely attach to the ceiling 14, a hanger 16 screwed to the ceiling 14 at the center 15 is used. Hooks 1 fixed at both ends of hanger 16 to resin molded body from portions of upper surface 17 of resin molded body 5 lacking
8 is detachably fixed.

The hanger 16 is provided with an insulated electric cord 20 having a connector 19 so that an AC power can be easily taken from the existing terminal 21 of the ceiling 14.

Since the filter 7 is configured to be inserted into the storage section 22 from the side, it is difficult for the collected dust to drop even during long-term use. Further, the filter 7 can be easily replaced by the drawer 23 in the storage section 22 or independently.

The embodiment of the present invention will be described with reference to the plan view of FIG. 3 and the perspective view of FIG. In FIG. 3, the multi-blade fan is omitted, and the upper surface of the resin molded body 5 is removed. The resin molded body 5 has an outlet 2 continuous with the casing 4 and the flow straightening pipe 11, but the lower part of the peripheral edge of the resin molded body 5 is flattened to form a closed structure.
4 is provided at the outlet.

The air that has entered through the suction port 1 enters the closed space 8 formed by the resin molded body 5 and the translucent cover 6 through the opening 25 below the resin molded body 5, and is sucked into the suction opening 9 of the casing 4. , Through the straightening pipe 11 of the casing 4,
The component parts 24 squeezed downward in a continuous diagonally downward direction vigorously flow diagonally downward.

The suction port 1 is provided with a storage section 22 for allowing the filter 7 to be taken in and out and replacing the filter 7 so as to make it difficult for accumulated dust to fall down.

The closed space formed by the resin molded body 5 and the translucent cover 6 and the bottom 26 of the space formed by the resin molded body 5 independent of the space formed by the casing 4 and the rectifying tube 11 where the air flows vigorously. A hook 18 for detachably fixing a mounting hanger is provided at a location.

In a room, the lighting fixture with a ceiling-mounted air purifier of the present invention is usually installed in the middle of the room at a position close to the ceiling. This location is considered to be best suited for forcing convection of the air in the room. Forced convection can be effectively generated even if the reach of the airflow from the outlet is not large, by providing multiple narrow outlets from the center outward to near the edges of the room This makes it possible to form a convection toward the ceiling-side suction port, which is less affected by the living space of the person.

FIG. 5 is an explanatory diagram of a smoke experiment in which smoke was actually generated and the flow of smoke was observed. Smoke is generated from sources 27 and 28 at a height of 50 cm from the floor 25, 0.8 m from the center and 1.5 m from the center, with a thermal power equivalent to one cigarette. The uniformity of the thermal power is to make the rise of smoke the same. The blown air flow 29 was made obliquely downward at two places of about 30 degrees.

The air is sucked by the negative pressure of the air stream 29,
Relatively strong convections 31 and 32 and slightly weak convection 33 occur as shown in the explanatory diagram of FIG. Since air is sucked in at the suction port 1 near the ceiling 14, convection on the ceiling side is dominant. Even if the smoke from the generation source 27 enters the convection 33, it is sucked into the convection 31 and 32 near the ceiling in a short time and purified. Will be done.

Naturally, the central part of the room is kept clean with almost no pollution due to the diffusion of smoke. Smoke from the source 28 has small or no nearby airflow, but drifts in the corner of the room, but gradually the convection 31,
It is gradually sucked into 32. After being hardly diffused into the center of the room, it enters the suction port 1 near the ceiling 14 and is eventually cleaned.

Although not shown, the smoke generated at the center is also gradually drawn into the convection 33 and enters the strong convections 31 and 32 to be cleaned. As a result, even if smoke is generated from any place, it is cleaned in a process of moving away from the center of the room. These phenomena occur not only in smoke but also in odor molecules, toxic gases or extremely small dust.

FIG. 6 shows the measurement results of the smoke experiment of FIG. 5 for the lighting fixture with a ceiling-mounted air purifier of the present invention. A smoke source equivalent to one cigarette is generated for 5 minutes from a smoke generating source 34 having a height of 0.7 meters 1 meter away from the center of FIG.
Measurements of smoke density at measurement locations 35, 36 and 37 at zero, 1 and 1.5 meters away from the center in meters and are indicated by polygonal lines 38, 39 and 40.

As shown by the polygonal line 38, which is the measurement result at the measurement location 35 at the center of the room, the smoke density is maintained at a low level although there is some fluctuation. This indicates that smoke is hardly diffused and contaminated in the center of the room.

Measurement site 3 0.5 meters away from the center
As shown by the polygonal line 39, which is the measurement result at 6, the measurement reaches the measurement saturation level at first, but is cleaned in a short time.

Measurement site 3 1.5 meters away from the center
As shown by the polygonal line 40, which is the result of the measurement at 7, during the generation of smoke, contamination of the smoke density reaches the measured saturation level. This indicates that significant smoke is being driven into the corners of the room by the outlet stream 29 of air. When the generation of smoke stops, it is cleaned by convection in a relatively short time.

FIG. 7 is a perspective view of a filter used in the embodiment of the present invention. The drawer 42 containing the bellows-shaped filter 41 is stored in the storage section 22 of the suction port 1 shown in FIGS.

FIGS. 8 and 9 show a plan view and a perspective view of another embodiment of the present invention. The resin molded body 45 having the casing 44 of the multi-blade fan 43 is substantially rectangular. A suction port 46 is provided at the opposing location, and a blow-off port 47 narrowed at the opposing location, which is displaced by approximately 90 degrees. Resin molded body 45
Are provided with openings 48 and 49 in the same manner.

This embodiment is slightly different from the embodiment shown in FIGS. 1 and 3 in which the inlet 1 and the outlet 2 are adjacent to each other. Air convection 3 in the ceiling direction in the illustration of the smoke experiment in FIG.
1, 32 and 33 spread a little in the horizontal direction, but since they are the same as the outlet stream 29, the effect and process of purifying smoke and the like hardly weaken or change.
Also, the central part of the room is hardly contaminated.

FIG. 10 shows a casing 51 of the multi-blade fan 50.
Is the same as using the resin molded body 52 having
Instead of the light-transmitting cover 53, a downwardly convex cover 54 is tightly fixed at the lower peripheral portion of the resin molded body 52, and the suction port 55 is formed.
The suction opening 57 of the casing 51 extends from the nearby opening 56.
Seal the space leading to. As a result, it is the same that the portions other than the suction port 55 and the outlet port 58 are sealed.
However, this configuration also has a disadvantage that the whole becomes thick.

Another embodiment of the lighting fixture with a ceiling-mounted air purifier according to the present invention is shown in FIGS. 11, 12 and 13. FIG. Each is an embodiment in the case where the shape is circular. Each of the suction ports 61 and 62 of the resin molded bodies 59 and 60 has an arc shape. It is the same as in each embodiment of the present invention that the blowout ports 63 and 64 narrowed obliquely downward are provided to face each other, and the openings 65 and 66 are provided in the resin molded bodies 59 and 60.

FIGS. 14, 15 and 16 are perspective views showing the configuration of the filter section when the outer shape of the main body is circular. If the drawers 69 and 70 with the filters 67 and 68 in them are straight behind, they are stored in the storage section of the suction port 61 in the embodiment of FIG. Filter 7 in FIG.
1 is drawn in an arc shape behind the drawer 72 in FIG.
It is stored in the storage section of the suction port 62 of the third embodiment so that it can be taken in and out.

When the drawers 69 and 70 having a straight line at the back of FIGS. 14 and 15 are accommodated in the accommodating portion 61 of the inlet of the resin molded body 59 having a circular shape in FIG. Close to the diameter. Therefore, if the overall thickness and outer diameter are not increased, the drawer height cannot be increased so much, and the heights of the filters 67 and 68 cannot be increased too much.

In the case where the drawer 72 at the back of FIG. 16 is an arc-shaped drawer 72, the drawer 72 and the filter 71 can be made relatively large because the drawer 72 is separated from the outer diameter of the internal annular fluorescent lamp.

Another embodiment of the present invention is shown in the sectional views of FIGS. In any of the embodiments, the provision of the outlets 73 and 74 arranged opposite to each other in the resin molded bodies 75 and 76 is the same as in the embodiments described above. However, it differs from the embodiments in that the filters 77 and 78 are installed close under the suction openings 79 and 80.

In the case of the embodiment of FIG. 17, the suction port 81 is provided in the resin molded body 75 in the same manner, but in the case of the embodiment of FIG. 18, the suction port 82 has a plurality of holes to transmit light. The cover 83 is provided on the periphery.

In any of the embodiments, it is needless to say that the present invention is based on the idea of the present invention in which a suction port and a discharge port are provided on the peripheral edge, and a portion other than the suction port and the discharge port is sealed with a cover. However, the method of the embodiment shown in FIGS. 17 and 18 has a disadvantage that dust easily accumulates inside the translucent covers 84 and 83.

FIG. 19 is a plan view showing an embodiment of installing a board of a lighting fixture with a ceiling-mounted air purifier according to the present invention. Casing 87 of multi-blade fan 86 of resin molding 85
A substrate 90 provided with electric components for lighting a lighting device and operating an air purifier is disposed in a lower portion 89 outside the rectifier tube 88.

Further, a through-hole 91 is provided at the bottom 89 of the resin molded body on which the substrate 90 is disposed, and the through-hole 91 is provided at the through-hole 91.
Are placed in close contact with each other and separated without opening a closed space under the resin molded body 85.

It is necessary to provide a sensor for detecting minute dust such as smoke, odor molecules, and flames at the outermost part of the main body as far as possible without being disturbed by the main body. As shown in the plan view of the sensor mounting of the present invention in FIG.
Reference numeral 2 denotes a peripheral portion of the main body which is exposed downward. further,
If the sensor 92 is provided below the substrate 90 in FIG. 19 together with other electric components, it is convenient for assembly.

FIG. 1 shows a portion where the sensor 92 of FIG. 20 is provided.
9 is provided at a peripheral portion of a lower portion 89 of the resin molded body 85 of FIG. 9 and a wall 93 is formed and separated, and a penetrating portion 94 is formed, so that a space closed except for the suction port and the discharge port of the present invention is not opened, and FIG. The sensor 92 can be provided so as to be exposed downward.

Further, the switch string 9 for turning on the lighting equipment and operating the air cleaner provided on the upper surface of the substrate is provided.
5 is taken out of the resin molded body 85.

Another embodiment of the present invention is shown in FIGS. These embodiments are slightly different from the configuration in which the resin molded body and the light-transmitting cover of the lighting fixture seal the portions other than the inlet and the outlet.

FIG. 21 is a sectional view of the multi-blade fan 9.
In the configuration including the casing 97 of the sixth embodiment, a portion other than the inlet 100 and the outlet is closed by the light-transmitting cover 98 and the upper cover 99 of the lower part of the lighting fixture.

FIG. 22 is a plan view of the embodiment of FIG. 21 with the upper cover 99 removed. The inlet 100 and the outlet 101 are provided to face each other. Storage section 103 of filter 102 constituting suction port 100
Then, the casing 97 connected to the outlet 101 may be fixed to the annular peripheral frame 104.

In order to make the sealing more secure, the upper cover 9 is located near the inlet 100 and the outlet 101.
The sealing materials 105 and 106 are provided in a configuration conforming to No. 9. The air sucked from the suction port 100 enters the closed space 107 and the suction opening 10 of the casing 97.
8 again, and vigorously exits obliquely downward from the outlet 101.

The embodiment shown in FIG. 23 and its perspective view in FIG. 24 have a rectangular outer shape, but have the same sealing manner as the embodiment in FIG. With a configuration including a casing 109 inside, the portions other than the suction port 110 and the blowout port 111 are sealed with a light-transmitting cover 112 and a cover 113 on the lower side of the lighting fixture.

The sectional view of the embodiment shown in FIG.
Except for the outlet 14 and the outlet, a sealing material 118 is provided between the upper cover 116 having a light-transmitting cover at the lower portion of the lighting fixture and the upper cover 116 having a hole at the center thereof and the upper surface of the casing 117 to be sealed.

A sectional view of the embodiment of FIG.
19, a sealing material 123 is provided at the upper end of the lower light-transmitting cover 121 and the upper side cover 122 of the lighting fixture except for the suction port 120 and the blow-out port so as to be in close contact with the ceiling 14. Seal tightly.

FIG. 27 shows a sectional view of the casing 1 according to the embodiment.
With the configuration including the inside 24, the portions other than the suction port 125 and the blowout port are sealed with a partition plate 127 above the fluorescent lamp 126 and an upper cover 128. Since the partition plate 127 often has a hole for mounting a component, it is preferable to attach the sheet 129 to secure sealing. Top cover 128
A hole may be formed at the center of the casing 124 and a sealing material may be provided between the casing 124 and the upper surface of the casing 124 to seal the casing. In any case, there is a disadvantage that the overall thickness becomes large.

FIG. 2, FIG. 8, FIG. 11, FIG.
As shown in the embodiments of FIG. 7, FIG. 18, FIG. 21, FIG. 23, FIG. 25, and FIG. 26, the fact that the light from the fluorescent lamp irradiates the filter inner surface directly or by reflection is positively used.

Each filter is provided with fine particles of a photoactive catalyst such as titanium oxide, and is irradiated with ultraviolet light contained in the light of a fluorescent lamp, so as to emit tobacco smoke, formaldehyde and NOx generated from heating or from inside the room. Decomposes and removes toxic gas and odor molecules. In order to irradiate the inside of each filter with the light of the fluorescent lamp in the enclosed space, it is preferable to apply a color having high reflectance such as white or cream to the surface of the casing or the like.

An electrostatic filter in which a polymer fiber subjected to polarization treatment is formed into a nonwoven fabric may be used. This is because the fine dust is collected by the force of static electricity, so that the fine dust can be collected efficiently even if the eyes are slightly rough.

A component which has been reported to have an antibacterial effect or an effect of decomposing odors may be mixed in the filter. For example, it is extracted from tea, purified from crab or shrimp shells, and is already used in filters of conventional air purifiers.

The lighting fixture with a ceiling-mounted air purifier according to the present invention can be installed at an optimum position in the middle of a room with almost no restriction on the installation location of furniture and the behavior of people. In addition, there is almost no discomfort in appearance. And it is effective in a relatively narrow and airtight place such as an apartment.

[0090]

Since the present invention is configured as described above, it has the following effects.

[0091] Since it can also be used as a lighting fixture, it is closely attached to the ceiling in the center of the room. In addition, since air is mainly blown obliquely downward from the air outlet and convection in the direction of the ceiling, small dust, toxic gases and odors are efficiently captured so that the living space for people in the center of the room is the most clean. Can be collected and disassembled.

In particular, when smoking, the diffusion of smoke is small, and the level of contamination is low near the center of the room.

Since the outlet is continuously throttled from the multi-blade fan, the direction and the momentum are strong, a large convection is generated, and the cleaning efficiency is high. In addition, the generation of vortices in the vicinity of the outlet is small, and the noise level is low for the air velocity and the flow rate.

Further, the filter can be easily put in and taken out of the storage section for replacement, and since the filter is mainly located in the horizontal direction, collected dust does not fall down.

[0095] By taking advantage of the fact that the filter at the periphery of the lighting fixture is located in the same enclosed space as the fluorescent lamp, the ultraviolet light from the fluorescent lamp irradiates the inner surface of the filter in the enclosed space. The active catalyst makes it possible to effectively decompose and remove odor molecules and toxic gases.

The multi-blade fan, the casing, the suction port, and the blow-off port are integrally formed of a resin molded body, and the lower portion is hermetically sealed with a light-transmitting cover, so that the number of parts can be reduced and the assembly can be simplified. In this case, it includes integrating the upper surface with a flat plate.

Further, by recessing the portion of the resin molded body adjacent to the annular fluorescent lamp, the overall thickness can be made relatively small.

Since the air suction port is not provided at the center under the translucent cover, there is no other place besides the transparent cover under the fluorescent lamp, which is an illumination lamp, and the illuminance is not reduced. In addition, it does not give a sense of discomfort in design.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of the embodiment of FIG.

FIG. 3 is a sectional view of the embodiment of FIG. 1 excluding a top surface.

FIG. 4 is a perspective view of the embodiment of FIG. 1 excluding a top surface.

FIG. 5 is an explanatory diagram of a smoke experiment of the embodiment in FIG. 1;

6 is a measurement result diagram of the smoke experiment of FIG.

FIG. 7 is a perspective view of a filter unit.

FIG. 8 is a plan view of another embodiment of the present invention, from which the upper surface is removed.

FIG. 9 is a perspective view of the embodiment of FIG.

FIG. 10 is a cross-sectional view of another embodiment of the present invention.

FIG. 11 is a plan view of another embodiment of the present invention except for the upper surface.

FIG. 12 is a perspective view of the embodiment of FIG. 11;

FIG. 13 is a plan view of another embodiment of the present invention except for the upper surface.

FIG. 14 is a perspective view of a filter unit.

FIG. 15 is a perspective view of a filter unit.

FIG. 16 is a perspective view of a filter unit.

FIG. 17 is a sectional view of another embodiment of the present invention.

FIG. 18 is a sectional view of another embodiment of the present invention.

FIG. 19 is a plan view showing an embodiment of substrate installation according to the present invention.

FIG. 20 is a plan view showing an embodiment of mounting a sensor according to the present invention.

FIG. 21 is a sectional view of another embodiment of the present invention.

FIG. 22 is a plan view of the embodiment of FIG. 21 without the upper cover.

FIG. 23 is a sectional view of another embodiment of the present invention.

FIG. 24 is a perspective view of the embodiment of FIG.

FIG. 25 is a sectional view of another embodiment of the present invention.

FIG. 26 is a sectional view of another embodiment of the present invention.

FIG. 27 is a sectional view of another embodiment of the present invention.

FIG. 28 is a cross-sectional view of a conventional lighting fixture with a ceiling-mounted air purifier.

FIG. 29 is a sectional view of an experimental example of a conventional lighting fixture with a ceiling-mounted air purifier.

FIG. 30 is an explanatory diagram of a smoke experiment of a conventional example.

FIG. 31 is an explanatory diagram of a smoke experiment of a conventional example.

FIG. 32 is a measurement result diagram of the smoke experiment of FIGS. 30 and 31.

[Explanation of symbols]

1, 46, 55, 61, 62, 81, 82, 100, 1,
10, 114, 120, 125, 132, 1
39 Suction port 2, 47, 58, 63, 64, 73, 74, 101, 1
11, 135, 141 Outlet 3, 43, 50, 86, 96 Multi-blade fan 4, 44, 51, 87, 97, 109, 117, 119
Casing 5, 45, 52, 59, 60, 75, 76, 85 Resin molded body 6, 53, 83, 84, 98, 112, 115 Translucent cover 7, 41, 67, 68, 71, 77, 78, 102 Filter 9, 48, 49, 56, 65, 66, 108 Suction opening 10, 138 Motor 11 Rectifier tube 12, 131 Ring fluorescent lamp 14 Ceiling 16 Hanger 22, 103 Storage section 23, 42, 69, 70, 72 Drawer 24 Squeezed component parts 90 Substrate 92 Sensor 95 Switch string 99, 113, 116, 128 Upper cover 122 Side cover

Claims (29)

[Claims] 1. A lighting device with a ceiling-mounted air purifier, wherein a discharge port and a suction port connected to a rectifying portion of a casing of a multi-blade fan are arranged on a peripheral edge, and a part other than the discharge port and the suction port is sealed with a cover. . 2. The multi-blade fan according to claim 1, wherein a suction opening of a casing of the multi-blade fan is provided in a closed space.
The lighting fixture with the ceiling-mounted air purifier described in the above. 3. The lighting fixture with a ceiling-mounted air purifier according to claim 1, wherein said outlet is directed obliquely downward and is a narrowed outlet. 4. The ceiling-mounted air according to claim 1, wherein the air outlet is disposed at two opposing locations of a rectangular peripheral portion, and the suction port is disposed at two other opposing locations. Lighting equipment with a purifier. 5. The ceiling-mounted air according to claim 1, wherein the air outlet is disposed at two opposing locations on a circular peripheral portion, and the suction port is disposed at two other opposing locations. Lighting equipment with a purifier. 6. A resin molded body having a casing of the multi-blade fan and a light-transmitting cover of a lighting fixture, except for the outlet and the inlet, which are sealed.
6. The lighting fixture with a ceiling-mounted air purifier according to 5. 7. A ceiling-mounted air cleaner according to claim 1, wherein a downwardly convex cover is provided in close contact with a lower peripheral portion of the resin molded body having the casing of the multi-blade fan. With lighting equipment. 8. The lighting apparatus according to claim 1, wherein the casing of the multi-blade fan is internally provided with a lower light-transmitting cover and an upper cover, and portions other than the suction port and the blow-off port are sealed. The lighting fixture with a ceiling-mounted air purifier according to any one of 1 to 5. 9. A light-transmitting cover at a lower portion of a lighting apparatus, a sealing material between an upper cover having a hole at a center thereof, and an upper surface of a casing of the multi-blade fan, so that the suction port and the suction port are provided. The lighting fixture with a ceiling-mounted air purifier according to claim 1, wherein a portion other than the outlet is sealed. 10. A multi-blade fan casing, wherein a lower translucent cover of a lighting fixture and a sealing material provided at an upper end of an upper side cover are brought into close contact with a ceiling so as to include the casing of the multi-blade fan therein. The lighting fixture with a ceiling-mounted air purifier according to any one of claims 1 to 5, wherein a part other than the suction port and the outlet is sealed. 11. A multi-blade fan casing including a partition plate and an upper cover above an illumination lamp of an illumination device, and a portion other than the suction port and the air outlet is sealed. Item 6. A lighting device with a ceiling-mounted air purifier according to Item 1 to 5. 12. A sealing material is provided between a partition plate above an illumination lamp of a lighting apparatus, an upper cover having a hole in the center thereof, and an upper surface of a casing of the multi-blade fan.
The lighting fixture with a ceiling-mounted air purifier according to claim 1, wherein a portion other than the suction port and the outlet is sealed. 13. The multi-blade fan casing may be formed to have a lower outer peripheral corner, and the bottom of the multi-blade fan casing may be arranged close to the inside diameter of a ring-shaped fluorescent lamp as an illumination lamp. The lighting fixture with a ceiling-mounted air purifier according to any one of claims 1 to 5, wherein 14. A lighting unit with a ceiling-mounted air purifier according to claim 13, wherein a part of the flow straightening tube connected to the casing of the multi-blade fan is lower than the height of the casing of the multi-blade fan. Appliances. 15. The structure according to claim 8, wherein a sealing material is provided in close contact with the outlet and the suction port, and an upper cover is brought into close contact with the sealing material.
The lighting fixture with the ceiling-mounted air purifier described in the above. 16. A hanger fixed to a ceiling by screws is detachably supported at a peripheral portion.
2. The lighting device with a ceiling-mounted air purifier according to item 2. 17. A multi-blade fan, wherein parts for allowing a hanger to be attached and detached are provided at a lower portion of a resin molded body outside the casing of the multi-blade fan.
16. The lighting fixture with a ceiling-mounted air purifier according to 16. 18. The ceiling mount according to claim 1, wherein light of a fluorescent lamp as an illumination lamp is irradiated directly or by reflection to a filter having a photoactive catalyst in a closed space. Lighting equipment with air purifier. 19. The luminaire with a ceiling-mounted air purifier according to claim 1, further comprising a storage section provided in said suction port so that a filter can be taken in and out. 20. The lighting fixture with a ceiling-mounted air purifier according to claim 2, wherein a filter is provided immediately below a suction opening of a casing of the multi-blade fan. 21. The ceiling-mounted air purifier according to claim 1, wherein said suction port is formed by a plurality of holes in a peripheral portion of a light-transmitting cover below the lighting fixture. With lighting equipment. 22. The lighting fixture with a ceiling-mounted air purifier according to claim 11, wherein a sheet is attached to said partition plate. 23. The lighting fixture with a ceiling-mounted air purifier according to claim 5, wherein said suction port is formed in an arc shape. 24. The lighting fixture with a ceiling-mounted air purifier according to claim 1, wherein the casing surface of the multi-blade fan is colored with high reflectance. 25. The lighting fixture with a ceiling-mounted air purifier according to claim 3, wherein a component having a configuration narrowed obliquely downward is provided at the outlet. 26. A substrate provided with electric parts for lighting a lighting device and operating an air purifier is disposed in close contact with a lower portion of a resin molded body outside a casing of the multi-blade fan. The lighting fixture with a ceiling-mounted air purifier according to claim 6. 27. The lighting fixture with a ceiling-mounted air purifier according to claim 26, wherein a switch cord for lighting the lighting fixture or operating the air purifier is drawn out from the switch component of the substrate. 28. The lighting fixture with a ceiling-mounted air purifier according to claim 26, wherein the sensor is fixed to a lower surface of the substrate and is provided so as to be exposed downward at a peripheral portion. 29. The lighting fixture with a ceiling-mounted air purifier according to claim 16, wherein said hanger is provided with an electric cord coated with insulation so as to be connectable to an existing terminal on the ceiling.