JP6908267B2 - Lighting device with air purifying function - Google Patents

Description

The present invention relates to a lighting device with an air purifying function.

A lighting device with an air purifying function that combines lighting and an air purifier is known (see, for example, Patent Document 1).

Such a lighting device with an air purifying function can be arranged without discomfort as lighting for a dining table or the like, and can further purify by sucking environmental air from the lower surface of the device. In particular, when enjoying cooking while cooking at the table, for example, when grilling meat and vegetables on a heated iron plate and eating, if there is a lighting device with an air purification function above the iron plate, the smoke accompanying cooking will be immediately emitted. It is purified and very convenient.

The lighting device with an air purifying function as described above is required to be applied not only in the environment of a dining table but also in various environments. For example, it can be applied to a coffee shop or an eat-in space of a store. As described above, the lighting device with an air purifying function is desired to be applied in various environments.

Japanese Unexamined Patent Publication No. 2014-22104

The appearance and size required for a lighting device with an air purifying function vary depending on the environment to which it is applied and the taste of the user. Due to such diversity, a lighting device with an air purifying function may be required to be compact.

Even when compactness is required, it is necessary to guarantee the air cleaning function. When the environment is sucked from the lower surface like the lighting device with an air purifying function described in Patent Document 1, if the device becomes compact, the suction point becomes smaller, and the air suction efficiency may be reduced. As a result, the air purifying function is deteriorated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting device with an air purifying function in consideration of deterioration of the air purifying function while considering compactness.

The lighting device includes a housing, a filter, lighting, a fan, and a guard portion . The housing is hung from the ceiling and installed at intervals with respect to the ceiling, and intake holes for taking in environmental air are formed laterally with respect to the hanging direction. The filter is arranged in the housing, purifies the air taken in from the intake hole, and forms a flow path through which the purified air flows in the housing. The lighting is located inside the housing. The fan is provided in the flow path or on the extension axis of the flow path, and generates an air flow from the outside of the housing toward the flow path. The guard portion is provided in the filter along the flow path.

According to the lighting device with an air purifying function, an intake hole is formed on the side of the housing. Therefore, even if the projected area of the housing in the hanging direction becomes smaller due to the miniaturization of the lighting device with an air purifying function, it is possible to widely take in air from the side regardless of the area of the projected surface. The intake efficiency can be maintained regardless of the miniaturization, and as a result, the air purification function can be maintained. Even if the lighting device with an air purifying function is not miniaturized, the wide suction port can improve the air purifying function.

It is a perspective view of the lighting apparatus with an air purifying function of this embodiment. It is a perspective view of the lighting apparatus with an air purifying function of this embodiment. It is an exploded perspective view of the lighting device with an air purifying function of this embodiment. It is a partial cross-sectional portion of the lighting device with an air purifying function along the IV-IV line of FIG. It is sectional drawing of the lighting apparatus with an air purifying function along the VV line of FIG. It is a figure which shows the lighting apparatus with an air purifying function provided with a sensor. It is a figure which shows the lighting apparatus with an air purifying function provided with the measuring part and the notification part. It is a perspective view which shows the example of the lighting device with the air purifying function with a guide. FIG. 5 is a cross-sectional view taken along the line IX-IX of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

1 and 2 are perspective views of the lighting device with an air purifying function of the present embodiment, FIG. 3 is an exploded perspective view of the lighting device with an air purifying function of the present embodiment, and FIG. 4 is along line IV-IV of FIG. A partial cross-sectional portion of the lighting device with an air purifying function, FIG. 5 is a cross-sectional view of the lighting device with an air purifying function along the VV line of FIG.

The lighting device 100 with an air purifying function shown in FIGS. 1 to 5 is a so-called hanging type lighting device. In the figure, the wires for hanging, the wiring connected to the rosette fixed to the ceiling surface, the rosette cover, etc. are omitted. The lighting device 100 with an air purifying function is installed at intervals from the ceiling in a state of being suspended from the ceiling. The lighting device 100 with an air purifying function irradiates the illumination light from the lower part in the figure. Further, the lighting device 100 with an air purifying function takes in air from the side of the housing 110, purifies the air by the internal filter 120, and exhausts it from above.

As shown in FIG. 3, the lighting device 100 with an air purifying function includes a housing 110, a filter 120, an inner guard 130, a lighting 140, and an exhaust unit 150.

The housing 110 has a cylindrical shape, and a plurality of intake holes 112 are provided on the entire circumference lateral to the hanging direction of the lighting device 100 with an air purifying function. The intake hole 112 is provided to take in the air of the environment. The number and diameter of the intake holes 112 are appropriately designed depending on the rigidity and durability of the housing 110. For example, the intake hole 112 is formed so that the opening ratio is 30 to 70% in the range where the intake hole 112 is formed. Further, by providing the plurality of intake holes 112, the housing 110 also serves as a filter. At the time of inspiration, it is possible to capture relatively large dust in the environment.

A transparent plate such as resin or glass is attached to the lower end of the housing 110 in the drawing, and the light of the illumination 140 is transmitted downward. Further, a scattering plate 114 is provided from the lower end of the housing 110 toward the upper side. The scattering plate 114 scatters the light of the illumination 140 and reduces the glare when the illumination device 100 with an air purifying function is visually observed. A fitting hole 116 is provided on the upper end side of the housing 110 in addition to the intake hole 112. The fitting hole 116 is formed in a size that matches the diameter of the screw member 156 for attaching to the exhaust portion 150, which will be described later.

The filter 120 is arranged in the housing 110, preferably in close contact with the inner wall of the housing 110. The filter 120 is formed in a cylindrical shape as a whole, and purifies the air sucked from the intake hole 112 of the housing 110 while passing it through the inside of the cylinder. The inside of the cylinder of the filter 120 forms a flow path 126 through which the purified air passes. In addition, in this specification, the flow path 126 does not show only the portion where air actually flows, but shows the entire blow-by portion inside the cylinder of the filter 120. Further, in the following, the term "on the extension axis of the flow path 126" means on the extension line of the central axis of the cylinder of the filter 120.

In this embodiment, the filter 120 includes a dust collecting filter 122 and a deodorizing filter 124. The dust collecting filter 122 is formed in a tubular shape and is arranged on the outer periphery of the deodorizing filter 124. As the dust collecting filter 122, a punching type in which a large number of holes are provided in metal or resin, a cut bend type, a mesh type such as a lath net, a non-woven fabric type, or the like can be adopted. In this embodiment, the dust collecting filter 122 adopts a non-woven fabric type. The dust collecting filter 122 can collect dust and the like finer than the housing 110 that acts as a filter.

The deodorizing filter 124 contains activated carbon or the like, and when the air passes through, it adsorbs the odor contained in the air and separates and removes the odor from the air. The deodorizing filter 124 may be coated with a deodorant to deodorize the attached odorous component.

As shown in FIGS. 3 and 4, the deodorizing filter 124 is a cylindrical filter whose circumference is bent in a bellows shape. The deodorizing filter 124 can be formed, for example, by bending a rectangular filter in a bellows shape and joining both ends. By forming the deodorizing filter 124 in a bellows shape, the surface area can be increased and the deodorizing efficiency can be improved. The deodorizing filter 124 is formed in a cylindrical shape and has a cavity inside. In the present embodiment, the cavity serves as a flow path 126 through which the air purified by the dust collection filter 122 and the deodorizing filter 124 passes. That is, the environmental air outside the housing 110 passes through the dust collecting filter 122 and the deodorizing filter 124 and flows into the flow path 126 as shown by the arrows in FIG.

The filter 120 is not limited to the dust collecting filter 122 and the deodorizing filter 124, and may include a smoke removing filter, a grease filter, and other filters.

The inner guard 130 is arranged in the housing 110. The inner guard 130 has a support portion 132 and a guard portion 134. The support portion 132 is formed in a flat plate shape, for example, and when the inner guard 130 is inserted into the housing 110, the support portion 132 abuts against the scattering plate 114 of the housing 110 and is positioned. The support portion 132 can also support the filter 120. The guard portion 134 has a shape along the flow path 126 formed by the filter 120 and is inserted into the filter 120. The guard portion 134 has a plurality of holes formed on the surface thereof, and allows air purified by the filter 120 to flow into the inner guard 130. The guard portion 134 regulates the position of the filter 120 that is attracted inward by the air flow.

The lighting 140 is, for example, an LED light bulb or an incandescent light bulb. The illumination 140 is inserted into the guard portion 134 of the inner guard 130. It is preferable that at least a part of the light emitting portion of the illumination 140 is exposed below the inner guard 130. Conversely, at least a portion of the illumination 140 is located within the inner guard 130, that is, within the purified air flow path. The wiring that supplies power to the lighting 140 extends from the exhaust section 150.

As shown in FIG. 5, the exhaust unit 150 has a built-in fan 152. The fan 152 is located on the extension axis of the flow path 126 (the portion indicated by the double-headed arrow in FIG. 5). As shown by an arrow in FIG. 5, the fan 152 guides the environmental air outside the housing 110 to the intake hole 112, the filter 120, and the flow path 126, and further forms an air flow to be discharged to the outside of the housing 110. do. The air is discharged from the exhaust port 154 formed on the end face of the exhaust portion 150. In the present embodiment, the exhaust port 154 will be described as being provided on the top surface of the exhaust unit 150 facing the ceiling. However, the exhaust port 154 may be opened toward the periphery (side) of the exhaust portion 150. The driving power of the fan 152 is obtained from a rosette on the ceiling surface (not shown).

A screw member 156 can be attached to the exhaust unit 150 at at least one place. The exhaust unit 150 and the housing 110 are fixed by fastening the screw member 156 to the exhaust unit 150 so as to insert the fitting hole 116 of the housing 110.

According to the lighting device 100 with an air purifying function of the present embodiment configured as described above, the following effects are obtained.

In the lighting device 100 with an air purifying function of the present embodiment, the space of the housing 110 is effectively utilized so that all or a part of almost all the configurations are housed in the housing 110. Therefore, it is possible to improve the designability and designability when the lighting device 100 with an air purifying function is applied in various situations. In particular, by effectively utilizing the space inside the housing 110, it is possible to contribute to the miniaturization of the lighting device 100 with an air purifying function. In the case of a type that hangs from the ceiling like the lighting device 100 with an air purifying function of the present embodiment, since it is installed closer to the user's eyes, there are many requests for miniaturization, and the demand can be met.

Further, according to the lighting device 100 with an air purifying function, an intake hole 112 is formed on the side of the housing 110. Therefore, even if the projected area of the housing 110 in the hanging direction becomes smaller due to the miniaturization of the lighting device 100 with an air purifying function, the air can be widely taken in from the side regardless of the area of the projected surface. The intake efficiency can be maintained regardless of the miniaturization, and as a result, the air purification function can be maintained. Even if the lighting device 100 with an air purifying function is not miniaturized, the air purifying function can be improved by the wide suction port.

Since a plurality of intake holes 112 are formed over the entire circumference of the housing 110, the housing 110 functions as a filter. Therefore, the air purifying function of the internal filter 120 can be assisted.

The illumination 140 is inserted in the flow path 126 formed by the filter 120. Therefore, the air flow path 126 required for the air purifying function is effectively utilized as a place for arranging the lighting 140. By effectively utilizing the space inside the housing 110, it is possible to achieve miniaturization in the extension axis direction of the flow path of the lighting device 100 with an air purifying function. Further, although the wiring and the like of the illumination 140 are protected by resin or the like, since a part of the illumination 140 is in the flow path 126, the illumination 140 can be cooled by the passing air. Cooling can extend the life of the light source and circuit of the illumination 140.

The exhaust port 154 is provided on the top surface of the exhaust unit 150. Therefore, it is difficult for the exhausted air and the air taken in from the intake hole 112 to be mixed. As a result, unpurified environmental air can be efficiently purified.

In the above embodiment, the case where the fan 152 is located on the downstream side on the extension axis of the flow path 126 has been described. However, the fan 152 may be located in the middle of the flow path 126 or on the upstream side on the extension axis of the flow path 126. If a fan 152 is provided in the middle of the flow path 126, miniaturization can be achieved depending on the axial direction.

Further, in the above embodiment, the case where a part of the illumination 140 is arranged in the flow path 126 has been described. However, the entire illumination 140 may be arranged in the flow path 126. Alternatively, the entire illumination 140 may be arranged outside the flow path 126.

Further, in the above embodiment, a mode in which the lighting device 100 with an air purifying function has a deodorizing filter 124 has been described. The lighting device 100 with an air purifying function may have a masking unit for masking in addition to the deodorizing filter 124 or in place of the deodorizing filter 124. The masking unit is, for example, a holding member that holds the air freshener, and is used for air flowing in the flow path 126 in the housing 110 or in the lighting device 100 with an air purifying function provided in the air flow path in the exhaust unit 150. , Confuse the aroma components. This makes it possible to mask the odor in the air, overwrite the odor of the odor with a good scent of the air freshener, and exhaust the air. Further, the lighting device 100 with an air purifying function may have an ion generating unit for removing odors in addition to the deodorizing filter 124 or in place of the deodorizing filter 124. The ion generating unit has, for example, a discharge anode and a discharge cathode, decomposes water molecules and oxygen molecules in the air, and generates hydrogen ions and oxygen ions. The ion generation unit is provided in, for example, the exhaust unit 150, and the generated ions are mixed with the air flowing in the lighting device 100 with an air purifying function to remove bacteria and odors in the air. As described above, the lighting device 100 with an air purifying function may have a masking and deodorizing / sterilizing function by the above method or another method in addition to the cleaning function by the filter 120. When the deodorizing filter 124 is omitted, the flow path 126 is defined as the inside of the cylinder of the dust collecting filter 122.

Further, various improvements and functions can be added to the lighting device 100 with an air purifying function. Hereinafter, a modified example of the lighting device 100 with an air purifying function will be described.

(Modification example 1)
FIG. 6 is a diagram showing a lighting device with an air purifying function provided with a sensor.

In the first modification, the lighting device 100 with an air purifying function has a detection unit 160 for detecting a change in the environment and a control unit 170 for switching the operation or stop of the fan 152 according to the detection result by the detection unit 160. Have more.

As shown in FIG. 6, the detection unit 160 is provided at a position where, for example, a change in the environment can be confirmed from below the housing 110. However, the detection unit 160 may be provided at any of the inside and outside of the lighting device 100 with an air purifying function as long as the change in the environment can be confirmed. When the detection unit 160 is provided outside the lighting device 100 with an air purifying function, the detection unit 160 may be attached to the outside of the housing 110, or may be provided, for example, on a rosette cover, a ceiling surface, a wall surface, or the like. ..

The detection unit 160 is, for example, an odor sensor capable of detecting a change in the amount of odor as a change in the environment. The odor sensor detects a change in the amount of odor by, for example, a change in the dielectric constant of the metal oxide element or the organic semiconductor film element, or a change in the frequency of the crystal oscillator. In addition, the odor sensor may detect the odor by any method.

The control unit 170 is provided in, for example, the exhaust unit 150. The control unit 170 is preferably provided at a position that does not obstruct the air flow. The control unit 170 is connected to the fan 152 and can control the operation or stop of the fan 152.

The control unit 170 operates the fan 152 when the amount of odor detected by the detection unit 160 becomes larger than a predetermined threshold value. On the other hand, when the amount of odor detected by the detection unit 160 becomes less than a predetermined threshold value, the fan 152 is stopped. By switching the operation and stop of the fan 152 in this way, the power consumption of the lighting device 100 with an air purifying function can be saved, and the power cost can be reduced.

(Modification 2)
Also in the second modification, the detection unit 160 is adopted. However, in the second modification, the detection unit 160 is a humidity sensor capable of detecting a change in humidity as a change in the environment. When the lighting device 100 with an air purifying function is applied to a dining table, an eat-in space, or the like, food is placed underneath. Steam is generated from hot dishes. The generated steam contains the smell of food. When the generated steam rises, the humidity around the lighting device 100 with an air purifying function rises. By detecting this increase in humidity, it can be detected as a change in the amount of odor in the environment.

Therefore, similarly to the first modification, the control unit 170 operates the fan 152 when the humidity is greater than a predetermined threshold value, and stops the fan 152 when the humidity is less than the threshold value, so that the steam containing the odor of food is contained. Can be properly eliminated.

(Modification example 3)
The detection unit 160 is also used in the third modification. In the third modification, the detection unit 160 is a motion sensor that detects the presence or absence in the environment as a change in the environment. In the third modification, the control unit 170 can switch between turning on (operating) and turning off (stopping) the illumination 140 in addition to operating and stopping the fan 152. Therefore, the control unit 170 is also connected to the substrate of the illumination 140.

For example, the control unit 170 operates the fan 152 and the lighting 140 when the presence of a person is detected by the detection unit 160. When the presence of a person is not detected by the detection unit 160, the control unit 170 stops the fan 152 and the illumination 140. In this way, when a person brings an odor-producing food or the like into the environment, both lighting and deodorization can be provided. When there are no people, there are no foods that emit odors in the environment, so both lighting and deodorization can be stopped to save electricity.

Unlike this, for example, the control unit 170 may stop the fan 152 while turning on the illumination 140 when the presence of a person is not detected by the detection unit 160. On the contrary, when the presence of a person is detected by the detection unit 160, the control unit 170 turns off the light 140 and drives the fan 152. In this way, only the fan 152 can be operated while the person is not in the environment to purify the air in the environment. The power consumption of the lighting 140 can be saved. Then, when a person comes into the environment, the driving fan 152 is stopped, so that the user can comfortably use the environment in which the air has been purified without worrying about the driving sound of the fan 152. A virtuous cycle is created.

(Modification example 4)
In the fourth modification, the detection unit 160 has a plurality of combinations of the sensors of the first to third modifications. For example, the detection unit 160 has an odor sensor and a motion sensor. In this case, the control unit 170 performs the following control. (1) The control unit 170 operates both the fan 152 and the lighting 140 when the amount of odor is equal to or higher than the threshold value and there is a person. (2) When the amount of odor is less than the threshold value and there is a person, the control unit 170 stops the fan 152 and operates the lighting 140. (3) When the amount of odor is less than the threshold value and there is no person, the control unit 170 stops both the fan 152 and the lighting 140. (4) When the amount of odor is equal to or higher than the threshold value and there is no person, the control unit 170 operates the fan 152 to stop the lighting 140. If the control unit 170 can control the rotation speed of the fan 152 by gradually increasing or decreasing it, the case (4) above may rotate the fan 152 at a higher speed than the case (1) above. good. Fan 15
The higher the speed of rotation 2, the louder the noise generated. However, as in the case of (4) above, if there are no people, there is no problem even if noise is generated, so that the rotation speed of the fan 152 can be increased. By increasing the rotation speed in this way, it is possible to quickly purify the air without people.

Modifications 1 to 4 are merely examples, and various sensors can be combined to detect changes in various environments, and the states of the fan 152 and the lighting 140 can be appropriately switched according to the changes.

(Modification 5)
FIG. 7 is a diagram showing a lighting device with an air purifying function provided with a measuring unit and a notification unit.

In the modified example 5, in addition to the above-described embodiment or the modified examples 1 to 4, the lighting device 100 with an air purifying function has a measuring unit 180 and a notification unit 182 as shown in FIG.

The measuring unit 180 measures the driving time of the lighting device 100 with an air purifying function. The measuring unit 180 is, for example, a timer. The notification unit 182 notifies the user when it is time to replace the filter 120. The notification unit 182 is, for example, a small lamp separate from the illumination 140. When the measurement unit 180 knows the passage of the predetermined time, the notification unit 182 notifies the user of the replacement time of the filter 120 by lighting. Alternatively, the notification unit 182 may continue to be lit until the replacement time and may be turned off when the replacement time is reached.

Further, the measuring unit 180 may measure the rotation time of the fan 152 instead of measuring the time like a timer. In this case, the measuring unit 180 is connected to the fan 152. Since the rotation time of the fan 152 and the amount of air passing through the filter 120 correlate with each other, it is possible to set the replacement time of the filter 120 more accurately than the timer and notify the user.

The notification unit 182 is not limited to light emitting means such as a lamp. The replacement time of the filter 120 may be notified by a sound or an announcement. Alternatively, a message or the like may be notified to the terminal registered by the user via the network.

(Modification 6)
In the above embodiment, the mode in which the purified air is exhausted above the exhaust unit 150 has been described. However, the lighting device 100 with an air purifying function may have a guide for controlling the direction of exhaust gas.

FIG. 8 is a perspective view showing an example of a lighting device with an air purifying function with a guide, and FIG. 9 is a cross-sectional view taken along the line IX-IX of FIG.

As shown in FIGS. 8 and 9, the lighting device 100 with an air purifying function has a disk-shaped guide 190 above the exhaust unit 150. Since the guide 190 is above the exhaust port 154 of the exhaust unit 150, the discharged air hits the guide 190, is turned, and flows laterally as shown by an arrow in FIG. As a result, the exhaust does not hit the ceiling, and the ceiling can be prevented from becoming dirty. Further, the discharged air flows to the side, so that the air before purification can be prevented from moving upward. As a result, the air before purification can be easily guided to the inside of the housing 110.

On the other hand, the guide 190 is not limited to the form shown in FIGS. 8 and 9. For example, when the lighting device 100 with an air purifying function is suspended at a position sufficiently distant from the ceiling, the guide may be formed so that the exhaust is directly above or diagonally above. By making the exhaust upward in this way, the exhaust air is surely separated from the lighting device 100 with an air purifying function and returns to the environment. More specifically, when the exhaust air flows in a direction close to the surface of the lighting device 100 with an air purifying function, the exhaust air is attracted to the surface of the device by the negative pressure. As a result, exhaust air will flow along the surface. Then, the exhaust air goes downward along the housing 110. It may not be preferable that the exhaust air comes toward the table while eating or the like under the lighting device 100 with an air purifying function. However, as described above, by guiding the exhaust directly above or diagonally upward, it is possible to prevent the exhaust air from traveling through the device toward the table.

100 Lighting device with air purifying function,
110 housing,
112 Intake hole,
114 Scatterer,
116 mating hole,
120 filters,
122 Dust collection filter,
124 Deodorizing filter,
126 flow path,
130 inner guard,
132 Support,
134 Guard part,
140 lighting,
150 exhaust section,
152 fans,
154 Exhaust port,
156 screw members,
160 detector,
170 control unit,
180 measuring unit,
182 Notification Department,
190 guides.

Claims (9)

A housing that is suspended from the ceiling and installed at intervals with respect to the ceiling, and an intake hole for taking in environmental air is formed on the side in the hanging direction.
A filter that is arranged in the housing to purify the air taken in from the intake hole and forms a flow path through which the purified air flows in the housing.
The lighting located inside the housing and
A fan provided in the flow path or on an extension axis of the flow path to generate an air flow from the outside of the housing toward the flow path.
A guard portion provided in the filter along the flow path and
Lighting device with air purifying function. The lighting device with an air purifying function according to claim 1, wherein the filter is formed in a tubular shape, and the inner cavity of the tubular shape forms the flow path. The lighting device with an air purifying function according to claim 1 or 2, wherein a plurality of the intake holes are formed over the entire circumference of the housing. The lighting device with an air purifying function according to any one of claims 1 to 3, wherein at least a part of the lighting is inserted in the flow path. A detector that detects changes in the environment and
A control unit that switches the operation or stop of at least one of the lighting and the fan according to the detection result by the detection unit.
The lighting device with an air purifying function according to any one of claims 1 to 4. A measuring unit that measures the drive time and
When the drive time measured by the measuring unit exceeds a predetermined time, a notification unit that notifies the user as the time to replace the filter, and
The lighting device with an air purifying function according to any one of claims 1 to 5. The lighting device with an air purifying function according to any one of claims 1 to 6, further comprising a guide for regulating the flow of the air so that the air passing through the fan goes to the side or the upper side of the housing. .. The lighting with an air purifying function according to any one of claims 1 to 7, wherein the guard portion is formed with a plurality of holes that allow air purified by the filter to flow into the guard portion. Device. The lighting device with an air purifying function according to any one of claims 1 to 8, wherein at least a part of the filter is formed in a bellows shape.

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