JP7407343B2 - dust collector - Google Patents

Description

The present invention relates to a dust collector.

A central dust collector is known that allows dust to be swept directly into a suction port provided on a wall to facilitate cleaning (for example, Patent Document 1). The central dust collection device described in Patent Document 1 has a suction port that is provided on the wall (floor side) of each living room in a building structure, etc. and can sweep dust, and a dust duct (air path) from the suction port of each living room. and a dust collector that communicates with each other through the The dust collector is equipped with a blower, and by driving the blower, a suction airflow is created inside the dust collector, and the dust swept into the suction port of each room is guided into the dust collector via the dust duct, and the dust is sent to the dust collector box. It is collected in.

Microfilm of Utility Application No. 52-039940 (Utility Application No. 53-134555)

In the conventional central dust collector described above, the length of the dust duct from the suction port provided in each room to the dust collector varies from room to room. This creates a difference in the volume of the blower leaking into the living room, which may cause noise problems in different living rooms.

In addition, the above-mentioned conventional central dust collector has a collection mechanism to prevent the dust sucked into the dust collector from passing through the fan section where the blower is located and causing performance deterioration (for example, a decrease in suction performance). It is necessary to install a filter between the dust box and the fan section. However, during repeated operations, the filter may become clogged, leading to performance deterioration.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a dust collector that can suppress noise and stably maintain high dust collection performance.

In order to achieve this objective, the dust collector of the present invention includes a housing, a suction port, a blowout port, a first nozzle, and a discharge port. The housing has a suction space. The suction port is provided in the casing at the lower end of the wall surface of the building structure on the indoor side, and is capable of taking in dust while sucking air from the room into the suction space. The blow-off port is provided on the wall above the suction port in the vertical direction, and blows out the first pressurized air from the wall into the room. The first nozzle is provided on the first side wall of the housing, and blows out the second pressurized air in a first direction from the first side wall toward a second side wall facing the first side wall. The discharge port is provided in the second side wall and discharges dust together with the second pressurized air and the air sucked into the suction space. The suction port extends along the first direction between the first side wall and the second side wall, and is attracted from the outside into the suction space by the second pressurized air blown out from the first nozzle. Breathe in the air.

According to the present invention, it is possible to realize a dust collector that can suppress noise and stably maintain high dust collection performance.

FIG. 1 is a schematic connection diagram of a dust collection system including a dust collection device according to Embodiment 1 of the present invention. FIG. 2(a) is a perspective view of the dust collector, FIG. 2(b) is a perspective view of the dust collector with the wall removed, and FIG. 2(c) is a perspective view of the dust collector with the wall removed. FIG. 3 is a perspective view of the dust collector in a state in which a discharge duct is attached. FIG. 3 is a side view of the dust collector viewed from the discharge port side. FIG. 4(a) is a view of the air flow when pressurized air is blown out from the first nozzle, as seen from the exhaust port side of the dust collector, and FIG. 4(b) is a diagram showing the air flow when pressurized air is blown out from the first nozzle. FIG. 3 is a diagram showing the flow of air when air is blown out, as seen from an angle of the dust collector. FIG. 5(a) is a side view showing the flow of air outside the casing when the first air outlet is not provided, and FIG. 5(b) is a side view showing the air flow from the first air outlet to the floor outside the casing. FIG. 5(c) is a side view showing the flow of air outside the housing when the first pressurized air is blown out in the second direction along the surface, and FIG. It is a side view showing the flow of air outside the housing when the first pressurized air is blown out in a third direction along the wall surface. FIG. 6 is a schematic connection diagram of a dust collection system including a dust collection device according to Embodiment 2 of the present invention. FIG. 7(a) is a top view showing the flow of air outside the housing when the third pressurized air is blown out from the second outlet in the fourth direction toward the dust collector along the floor surface. , FIG. 7(b) is a side view showing the flow of air outside the casing when the third pressurized air is blown out from the second outlet in a fourth direction toward the dust collector along the floor surface. FIG. 8 is a diagram showing a configuration example of a discharge duct connected to a dust collector according to a modification. FIG. 9 shows the case in a modified example of the dust collection system according to Embodiment 2 of the present invention, with the blowing direction of the first pressurized air 60 switched to the third direction 34 when a person is detected. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. It should be noted that the embodiments described below each represent a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components shown in the following embodiments are merely examples and do not limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims representing the most significant concept of the present invention will be explained as arbitrary constituent elements. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and redundant explanations will be omitted or simplified.

(Embodiment 1)
First, with reference to FIG. 1, a schematic configuration of a dust collection system 1 including a dust collection device 20 according to Embodiment 1 of the present invention will be described. FIG. 1 is a schematic connection diagram of the dust collection system 1.

The dust collection system 1 is a system that is built in a building structure 40 and collects dust swept out in a living room 5 of the building structure 40. The dust collection system 1 takes in dust by a dust collector 20 provided for each of the plurality of living rooms 5, and collects the dust through a discharge duct 14 attached to each dust collector 20 into a collection box 15. Collect at.

The dust collection system 1 includes a compressor 2, an air tank 3, a distributor 16, a regulator 10, a solenoid valve 11, a supply duct 12, and a switch 13 in addition to the dust collector 20, discharge duct 14, and collection box 15 described above. It consists of Further, as part of the dust collector 20, a first air outlet 50 is provided.

The compressor 2 compresses air to generate pressurized air (compressed air), and is installed outdoors in the building structure 40. By installing the compressor 2 outdoors of the building structure 40, it is possible to suppress the noise generated when compressing air in the compressor 2 from leaking indoors. Note that the dust collector 20 uses compressed air that has been compressed to a high pressure of 0.1 to 0.3 [MPa].

Note that the compressor 2 may be installed in a shed built as a structure separate from the building structure 40. Moreover, the compressor 2 may be installed indoors in the building structure 40 (for example, in the machine room 4 provided in the building structure 40) by taking soundproofing measures.

The air tank 3 is connected to the output side of the compressor 2 to store the pressurized air generated by the compressor 2, and is installed outdoors of the building structure 40. The compressor 2 cannot always output pressurized air because it takes time to compress air. By accumulating the pressurized air generated by the compressor 2 in the air tank 3, pressurized air is stably output from the air tank 3.

Note that the air tank 3 may be installed in a shed built as a structure separate from the building structure 40, or may be installed indoors of the building structure 40, such as the machine room 4. Moreover, in the dust collection system 1, the air tank 3 does not necessarily need to be provided.

The pressurized air accumulated in the air tank 3 is sent to the distributor 16. The distributor 16 distributes pressurized air to each dust collector 20, and is installed in the machine room 4 provided within the building structure 40. The pressurized air distributed by the distributor 16 is supplied to each dust collector 20 via a supply duct 12 provided corresponding to each dust collector 20. By providing the distributor 16 indoors in the building structure 40, a user who is inside the building structure 40 and uses the dust collection system 1 can easily repair the distributor 16.

Note that the distributor 16 may be installed indoors in the building structure 40 other than the machine room 4, or may be installed outdoors in the building structure 40. The outdoor area of the building structure 40 may be inside a separately built shed, or may be under the floor 7 or attic 8 of the building structure 40.

The supply duct 12 is a duct that supplies pressurized air distributed by the distributor 16 to the corresponding dust collector 20. A supply duct 12 extending from the distributor 16 extends from the machine room 4 to the attic 8 and is connected to the corresponding dust collector 20 through the inside of the wall 9 constituting the living room 5. Note that the dust collector 20 is also configured inside the wall 9. Therefore, pressurized air can be supplied from the distributor 16 to each dust collector 20 without the supply duct 12 being visible to people inside the building structure 40, so that the aesthetic appearance of the inside of the building structure 40 is spoiled. can be suppressed.

A regulator 10 and a solenoid valve 11 are provided in the middle of each supply duct 12. The regulator 10 adjusts the pressure of pressurized air supplied from the distributor 16 to the dust collector 20 . By adjusting the pressure of the pressurized air with the regulator 10, the volume of pressurized air blown out by the dust collector 20 can be easily adjusted.

The electromagnetic valve 11 is a valve for opening or closing the flow path of pressurized air in the supply duct 12 by opening and closing the solenoid valve 11 . A switch 13 is provided in each room 5 in which the dust collector 20 is provided. The switch 13 is for opening and closing the solenoid valve 11 of the supply duct 12 connected to the dust collector 20 of the corresponding room 5.

When the switch 13 is turned on by the user, the solenoid valve 11 of the supply duct 12 connected to the dust collector 20 of the corresponding living room 5 opens, and the pressurized air flow path in the supply duct 12 is opened. Pressurized air is supplied to the dust collector 20. On the other hand, when the switch 13 is turned off by the user, the solenoid valve 11 of the supply duct 12 connected to the dust collector 20 of the corresponding room 5 is closed, and the pressurized air flow path in the supply duct 12 is closed. Then, the supply of pressurized air to the dust collector 20 is stopped.

The regulator 10 and the solenoid valve 11 are provided in the machine room 4 so that a user who is inside the building structure 40 and uses the dust collection system 1 can easily repair the regulator 10 and the solenoid valve 11. It has become.

Note that the regulator 10 and the solenoid valve 11 may be installed indoors in the building structure 40 other than the machine room 4, or may be installed outdoors in the building structure 40. The outdoor area of the building structure 40 may be inside a separately built shed, or may be under the floor 7 or attic 8 of the building structure 40. Further, the regulator 10 and the solenoid valve 11 do not necessarily need to be installed at the same location. However, if the regulator 10 and the solenoid valve 11 are installed at the same location, the ease of repair can be improved.

The dust collector 20 is installed inside the wall 9 constituting the living room 5, and the dust collector 20 is installed at the lower end of the wall surface 9a facing the living room 5 on the indoor side. The dust swept out in the living room 5 is taken in.

The dust collector 20 has the first air outlet 50 as described above. The first air outlet 50 is provided on the wall surface 9a at a position vertically above the suction port 21 and a predetermined distance away from the suction port 21. A supply hose branched from the supply duct 12 is connected to the first outlet 50, and pressurized air is supplied from the supply hose. The first air outlet 50 blows out the first pressurized air 60 (see FIG. 5) from the wall surface 9a toward the interior of the living room 5, at least while the dust collector 20 is taking in dust.

Other detailed configurations of the dust collector 20 will be described later with reference to FIGS. 2 and 3.

The dust taken in by each dust collector 20 is collected together with second pressurized air 61 (described later) blown out by the dust collector 20 and induced air attracted by the second pressurized air 61. It is sent to a collection box 15 via a discharge duct 14 provided corresponding to the device 20. Each discharge duct 14 extends from the dust collector 20 provided inside the wall 9 to the collection box 15 through the underfloor 7 of the building structure 40 . Therefore, the dust can be transported from the dust collector 20 to the collection box 15 without the discharge duct 14 being visible to at least the people in the living room 5, so that at least the aesthetic appearance of the living room 5 can be suppressed from being impaired.

Only one collection box 15 is provided in the dust collection system 1, and this one collection box 15 collects the dust taken in by each dust collection device 20 and sent through the corresponding discharge duct 14. to recover. The discharge duct 14 is connected to the collection box 15 so as to drop the dust carried from the corresponding dust collector 20 from the top to the bottom of the collection box 15 together with the second pressurized air 61 and the induced air. Thereby, dust can be reliably dropped into the trash can provided in the collection box 15.

On the other hand, the collection box 15 is provided with an air vent (not shown), and the second pressurized air 61 and induced air sent through the discharge duct 14 are discharged from the air vent. Therefore, it is possible to prevent the collection box 15 from becoming pressurized.

The collection box 15 is installed at the entrance 6 of the building structure 40. By installing it at the entrance 6, the collected dust can be easily carried outside without polluting each living room 5 of the building structure 40. Note that the collection box 15 does not necessarily need to be installed at the entrance 6 and may be installed outdoors of the building structure 40. Further, a plurality of collection boxes 15 may be provided. However, in order to reduce the effort required to collect dust, it is desirable that there be only one collection box 15.

Next, the detailed configuration of the dust collector 20 according to the first embodiment will be described with reference to FIGS. 2 and 3. 2(a) is a perspective view of the dust collector 20, FIG. 2(b) is a perspective view of the dust collector 20 with the wall surface 9a removed, and FIG. 2(c) is a perspective view of the dust collector 20 with the wall surface 9a removed. 9a is removed, and is a perspective view of the dust collector 20 with the exhaust duct 14 attached to the dust collector 20. FIG. Moreover, FIG. 3 is a side view of the dust collector 20 viewed from the discharge port 28 side. Note that the first air outlet 50 is omitted in both FIGS. 2 and 3.

As shown in FIG. 2, the dust collector 20 includes a wall surface 9a, a first side wall 23, a second side wall 24 facing the first side wall 23, and a third side wall facing the wall surface 9a (opposite to the suction port 21). A housing 20a having a suction space 26 is formed by the third side wall 22, the top plate 25, and the bottom plate 31. The wall surface 9a is the wall surface of the wall 9 forming the living room 5 in the building structure 40. The first side wall 23 is a side wall provided on the right side when the housing 20a is viewed from the wall surface 9a side of the living room 5. The interior of the casing 20a is hollow, and the hollow forms a suction space 26. Note that a space 26a is formed on the back side of the first side wall 23, in which a supply hose (not shown) for supplying pressurized air to a first nozzle 29, which will be described later, is arranged.

A suction port 21 is provided in the housing 20a at the lower end of the wall surface 9a on the indoor side of the living room 5 (a position in contact with the floor surface 7a of the living room 5). The suction port 21 extends between the first side wall 23 and the second side wall 24 along a first direction 32 from the first side wall 23 to the second side wall 24, and is connected to the outside (i.e., inside the living room 5). This opening is capable of taking in dust swept out in the living room 5 into the suction space 26 while sucking air into the suction space 26 from the inside. The suction port 21 is a single rectangular opening having a predetermined opening height (for example, 10 mm), but may be composed of a plurality of openings.

Further, as shown in FIGS. 2 and 3, the first side wall 23 is provided with a first nozzle 29. The first nozzle 29 is connected to the first side wall above the suction port 21 (on the top plate 25 side) and on the suction port 21 side (wall surface 9a side) from the third side wall 22 on the opposite side to the suction port 21. The pressurized air supplied from the supply duct 12 is blown out into the suction space 26 in a first direction 32 from the supply duct 23 toward the second side wall 24 . The first nozzle 29 extends from the first side wall 23 in the first direction 32 , and its tip is located approximately in the middle between the first side wall 23 and the second side wall 24 . That is, on the side above the suction port 21 and close to the suction port 21, pressurized air is supplied from the first nozzle 29 as the second pressurized air 61 from approximately the middle portion between the first side wall 23 and the second side wall 24. It's blown out.

The housing 20a of the dust collector 20 is provided with four nozzle holes 23a in the first side wall 23, as shown in FIG. The structure is such that one nozzle can be attached to each nozzle hole 23a. In the dust collector 20 according to the first embodiment, the first nozzle 29 is attached to the nozzle hole 23a on the wall surface 9a side and on the upper side (top plate 25 side) among the respective nozzle holes 23a. Further, the other three nozzle holes 23a are not equipped with nozzles and are covered with lids. Thereby, the suction space 26 and the space 26a can be separated, and the induced airflow 41 can be efficiently generated in the suction space 26.

The top plate 25 is provided with a hole 27 through which a supply hose (not shown) for supplying pressurized air to the first nozzle 29 passes. The supply duct 12 is connected to a supply hose in front of the dust collector 20 , which passes through the hole 27 and is connected to the first nozzle 29 at the first side wall 23 . Thereby, the pressurized air sent from the supply duct 12 is supplied to the first nozzle 29, and the second pressurized air 61 is blown out from the tip.

In addition, in FIG. 2, four holes 27 are made in the top plate 25. As mentioned above, the housing 20a of the dust collector 20 is configured to be able to attach up to four nozzles that blow out pressurized air, and pressurized air is supplied to each of the four nozzles. This is to allow the supply hose to pass through. Therefore, the number of holes 27 may be changed depending on the number of nozzles connectable to the housing 20a. Note that the holes 27 that are not used through which the supply hoses are passed are covered and closed.

Furthermore, only one hole 27 through which the supply duct 12 passes instead of the supply hose may be provided. In this case, a supply hose may be connected to the supply duct 12 between the top plate 25 and the first side wall 23, and pressurized air may be supplied from the supply hose to the first nozzle 29. Pressurized air may be supplied by direct connection to the first nozzle 29.

Further, as shown in FIG. 2(a), a discharge port 28 is formed in the second side wall 24 of the dust collector 20. The exhaust port 28 collects dust taken into the suction space 26 along with the second pressurized air 61 blown out from the first nozzle 29 and the air (induced air) sucked into the suction space 26 from the suction port 21. This is an opening for discharging the device 20. As shown in FIG. 2(c), the exhaust duct 14 is attached to the exhaust port 28, and the dust discharged from the exhaust port 28 is sent to the suction space 26 through the second pressurized air 61 and the suction port 21. It is carried to the collection box 15 via the discharge duct 14 on the sucked induced air.

Next, the operation and effects of the dust collector 20 configured as described above will be explained with reference to FIGS. 4 and 5. First, with reference to FIG. 4, the dust suction action by the first nozzle 29 will be described. FIG. 4(a) is a diagram of the air flow when the second pressurized air 61 is blown out from the first nozzle 29, as seen from the exhaust port 28 side of the dust collector 20, and FIG. FIG. 3 is a diagram illustrating the air flow when the second pressurized air 61 is blown out from the first nozzle 29 when the dust collector 20 is viewed from an angle. In addition. Although the second pressurized air 61 is not shown in FIG. 4, the second pressurized air 61 is supplied at the center of the first nozzle 29 in a direction from the back side of the page to the front side (direction perpendicular to the page). ) is flowing.

When the second pressurized air 61 is blown out from the first nozzle 29, the surrounding area becomes low pressure due to the high-speed airflow caused by the blown out second pressurized air 61, and as shown in FIG. 4(a), the surrounding air is An induced airflow 41 that flows toward the second pressurized air 61 blown out from the first nozzle 29 is generated. This induced airflow 41 causes the entire suction space 26 to have a low pressure, and an airflow 42 is generated that sucks induced air from the interior of the living room 5 into the suction space 26 through the suction port 21. The dust collector 20 is swept out in the living room 5, and the generated airflow 42 can take in dust collected near the suction port 21 from the suction port 21 into the suction space 26.

The dust taken into the suction space 26 is discharged from the discharge port 28 together with the second pressurized air 61 blown out from the first nozzle 29 and the induced air sucked into the suction space 26 from the suction port 21, and is discharged from the discharge duct. 14 and is collected into a collection box 15.

In this way, the dust collector 20 can take in and collect dust from the living room 5 simply by blowing out pressurized air, making it possible to eliminate the need for the blower used in conventional dust collectors. Therefore, the dust collector 20 can suppress noise without worrying about sound leakage caused by the blower. Moreover, since the dust collector 20 does not use a blower, a filter can also be eliminated. Therefore, the dust collector 20 can stably maintain dust collection performance without deterioration of performance due to filter clogging.

Next, with reference to FIG. 5, the action and effect of blowing out the first pressurized air 60 from the first blow-off port 50 will be described. FIG. 5A is a side view showing the flow of air outside the housing 20a (on the indoor side of the living room 5) when the first air outlet 50 is not provided. FIG. 5(b) shows the flow of air outside the housing 20a when the first pressurized air 60 is blown out from the first outlet 50 in the second direction 33 along the floor surface 7a outside the housing 20a. FIG. FIG. 5(c) shows the flow of air outside the housing 20a when the first pressurized air 60 is blown out from the first outlet 50 in the third direction 34 along the indoor wall surface 9a of the living room 5. FIG.

When the dust collector 20 is not provided with the first outlet 50, as shown in FIG. They originate from various directions. As a result, even if a predetermined amount of second pressurized air 61 is blown out from the first nozzle 29 in the dust collector 20, the induced air flow 42 is not generated on the floor surface 7a of the living room 5, which is outside the housing 20a. There is a risk that the wind volume will be weak. Therefore, the dust collected on the floor surface 7a of the living room 5 may not be sufficiently taken into the suction space 26 of the dust collector 20.

Therefore, in the dust collector 20, as described above, the first air outlet 50 is provided on the wall surface 9a above the suction port 21 in the vertical direction, and the first pressurized air 60 is blown out from the wall surface 9a toward the interior of the living room 5. . For example, in the dust collector 20, the first pressurized air 60 is blown out from the first air outlet 50 in the second direction 33 along the floor surface 7a outside the housing 20a. In this case, as shown in FIG. 5(b), the air in the living room 5 outside the housing 20a is attracted by the blown out first pressurized air 60 and moves in the second direction 33 together with the first pressurized air 60. A flowing air stream 62 is generated. Since an air curtain is formed by the flow of the first pressurized air 60 and the airflow 62, it is possible to suppress the air above the air curtain from flowing into the suction port 21.

In the dust collector 20, the first pressurized air 60 may be blown out from the first air outlet 50 in a diagonally upward direction rather than the second direction 33 along the floor surface 7a outside the housing 20a. In this case, the air in the living room 5, which is the outside of the housing 20a, is attracted by the blown out first pressurized air 60 and moves along with the first pressurized air 60 in the direction in which the first pressurized air 60 is blown out. A flowing air stream 62 is generated. Since an air curtain is formed by the flow of the first pressurized air 60 and the airflow 62, it is possible to suppress the air above the air curtain from flowing into the suction port 21.

Further, in the dust collector 20, the first pressurized air 60 may be blown out from the first outlet 50 in the third direction 34 along the wall surface 9a. In this case, as shown in FIG. 5(c), the air in the living room 5 is attracted by the blown out first pressurized air 60, and an airflow 63 is generated that flows in the third direction 34 together with the first pressurized air 60. Here, the air induced by the airflow 63 flows from a distant position on the wall surface 9a of the living room 5 toward the first air outlet 50 along the floor surface 7a. Since this airflow 63 forms an air curtain along the floor surface 7a, it is possible to suppress air above the air curtain from flowing into the suction port 21.

In this way, the first air outlet 50 is provided on the wall surface 9a above the suction port 21 in the vertical direction, and the first pressurized air 60 is blown out from the wall surface 9a toward the interior of the living room 5, thereby forming an air curtain. Air above the curtain can be prevented from flowing into the suction port 21. Therefore, the target of the attracted air sucked in from the suction port 21 by the attracting action of the dust collector 20 can be limited to the air in the space between the air curtain and the floor surface 7a.

As a result, when air containing dust is sucked into the suction port 21 due to the attraction, more of the air sucked into the suction port 21 is drawn from the floor surface 7a side, so that it is blown out from the first nozzle 29. Even if the blowing conditions of the second pressurized air 61 are constant, the floor surface 7
The speed of the airflow 42 flowing through a can be increased. Therefore, the dust collected on the floor surface 7a of the living room 5 can be sufficiently taken into the suction space 26 of the dust collector 20, and high dust collection performance can be achieved.

In addition, since the first air outlet 50 is provided on the wall surface 9a at a position a predetermined distance away from the suction port 21, air near the floor surface 7a is attracted by the first pressurized air 60, and the suction port 21 It is possible to suppress the amount of induced air sucked into the air from decreasing.

(Embodiment 2)
In the dust collection system 1a according to the second embodiment of the present invention, so that the dust collection device 20 can automatically collect dust on the floor surface 7a, a wall surface 9b opposite to the wall surface 9a on which the dust collection device 20 is installed is , differs from the first embodiment in that a second outlet 51 is provided to blow out pressurized air (third pressurized air 64) toward the dust collector 20. The configuration of the dust collection system 1a other than this is the same as the dust collection system 1 according to the first embodiment. Hereinafter, the content already explained in Embodiment 1 will be omitted from being explained again, and the points different from Embodiment 1 will be mainly explained.

A dust collection system 1a according to Embodiment 2 of the present invention will be described with reference to FIG. 6. FIG. 6 is a schematic connection diagram of a dust collection system 1a including a dust collection device according to Embodiment 2 of the present invention. In addition, in FIG. 6, the dust collector 20 etc. installed in other rooms are omitted.

The dust collection system 1a according to the second embodiment performs dust collection operation by automatic control so that the dust collection device 20 can automatically collect dust on the floor surface 7a when no one is in the room. It is a system that can execute More specifically, the dust collection system 1a has a configuration in which a second outlet 51 is added as a part of the dust collector 20 to the dust collection system 1 according to the first embodiment.

The second air outlet 51 is provided at the lower end of the indoor side of the wall surface 9b facing the wall surface 9a on which the dust collector 20 is installed (on the floor surface 7a side of the wall surface 9b). The second outlet 51 is connected to a supply duct 12 extending from the distributor 16 (a duct different from the supply duct 12 connected to the dust collector 20), and the second outlet 51 is connected to at least While the dust collector 20 is taking in dust, the third pressurized air 64 is blown out from the wall surface 9b toward the suction port 21 of the dust collector 20.

Next, with reference to FIG. 7, the action and effect of blowing out the third pressurized air 64 from the second blow-off port 51 will be described. FIG. 7(a) shows the flow of air outside the casing 20a when the third pressurized air 64 is blown out from the second outlet 51 in the fourth direction 35 toward the dust collector 20 along the floor 7a. FIG. FIG. 7(b) shows the flow of air outside the housing 20a when the third pressurized air 64 is blown out from the second outlet 51 in the fourth direction 35 toward the dust collector 20 along the floor 7a. FIG. Here, when the dust collection system 1a is performing automatic control, the first pressurized air 60 blown out from the first outlet 50 is directed in a second direction along the floor surface 7a outside the housing 20a. 33 (or more diagonally upward than the second direction 33).

When the dust collector 20 starts collecting dust, as shown in FIG. 7(a), the dust collector 20 generates an airflow 42 of induced air from inside the living room 5 at the suction port 21. As shown in FIG. 7(b), in the dust collector 20, the first pressurized air 60 is blown out from the first outlet 50 in the second direction 33 along the floor surface 7a outside the housing 20a. As a result, the air in the living room 5, which is the outside of the housing 20a, is attracted by the blown out first pressurized air 60, and an airflow 62 that flows in the second direction 33 together with the first pressurized air 60 is generated. As a result, an air curtain is formed by the flow of the first pressurized air 60 and the airflow 62, and air above the air curtain is suppressed from flowing into the suction port 21.

On the other hand, in the dust collector 20, by blowing out the third pressurized air 64 from the second outlet 51 in the fourth direction 35 toward the dust collector 20 along the floor surface 7a, the third pressurized air 64 is The air flows along the floor 7a between the first pressurized air 60 blown out from the first outlet 50 and the floor 7a. Then, the dust on the floor surface 7a is carried to the vicinity of the dust collector 20 by the flow of the third pressurized air 64 blown out. The dust carried near the dust collector 20 is sucked into the dust collector 20 by the induced air flow 42. In other words, in the dust collection system 1a, the third pressurized air 64 blown out from the second outlet 51 automatically removes dust existing in areas that are not affected by the induced air flow 42 without human intervention. can be recovered.

Note that the second air outlet 51 does not need to be provided on the wall surface 9b facing the wall surface 9a on which the dust collector 20 is provided, and may be provided so as to go from the second air outlet 51 toward the dust collector 20 along the floor surface 7a. As long as the third pressurized air 64 can be blown out, the second outlet 51 may be provided on another wall surface. Alternatively, it may be provided at a location other than the wall surface. Furthermore, the second air outlet 51 may be provided at a plurality of locations.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. This can be easily inferred. For example, each embodiment adds one or more parts of the configuration of another embodiment to that embodiment, or replaces one or more parts of the configuration of the other embodiment. Accordingly, the embodiment may be modified and configured. Further, the numerical values listed in each of the above embodiments are merely examples, and it is of course possible to employ other numerical values.

For example, in the first embodiment, pressurized air is supplied from the supply duct 12 to the first outlet 50, and the first pressurized air 60 is blown out from the first outlet 50 using the pressurized air. explained. On the other hand, by taking out the second pressurized air 61 and induced air flowing through the discharge duct 14 and supplying a part of these air taken out from the discharge duct 14 to the first outlet 50, the first outlet 50 The first pressurized air 60 may be blown out from. FIG. 9 is a diagram showing an example of the configuration of the discharge duct 14 of this modification.

As shown in FIG. 8, the exhaust duct 14 of this modification includes an air flow path 14a that bends the flow of the second pressurized air 61 and induced air discharged from the exhaust port 28, and a collection box 15 in which dust is collected. It is constituted by an air flow path 14b directed toward the air flow path 14b. When part of the flow of the second pressurized air 61 and the induced air containing dust discharged from the discharge port 28 is bent by the air flow path 14a, the dust is transferred to the second pressurized air 61 due to the centrifugal force generated based on its weight. It is blown away from the pressurized air 61 and the induced air, circulates through the air flow path 14b, and is collected in the collection box 15. Then, the second pressurized air 61 and a portion of the induced air from which the dust has been blown are supplied to the first outlet 50 .

In this way, the second pressurized air 61 and induced air discharged from the discharge port 28 of the dust collector 20 can be effectively utilized, so that the second pressurized air 61 and induced air are not discharged to the outside in vain. can be suppressed.

In the second embodiment described above, when the dust collection system 1a executes the dust collection operation by automatic control, the first pressurized air 60 blown out from the first outlet 50 is It was set to blow out in the second direction 33 (or diagonally upward than the second direction 33) along the floor surface 7a. On the other hand, when the person 70 approaches the vicinity of the dust collector 20, the direction of the first pressurized air 60 blown out from the first outlet 50 is changed from the second direction 33 to the direction along the wall surface 9a. It may be possible to switch in three directions 34. FIG. 9 shows a state in which the blowing direction of the first pressurized air 60 is switched to the third direction 34 when a person 70 is detected in a modified example of the dust collection system 1a according to the second embodiment of the present invention. FIG. 3 is a side view showing the flow of air outside the housing.

As shown in FIG. 9, in the modified example of the dust collection system 1a, as part of the dust collection device 20, a detection unit 52 that detects a person 70 in the vicinity of the dust collection device 20, and a first A switching unit 53 that switches the direction in which the pressurized air 60 is blown out is provided.

The detection unit 52 is a human sensor, and is provided on the wall surface 9a at a position vertically above the first air outlet 50 and away from the first air outlet 50 by a predetermined distance. The sensitivity of the detection unit 52 is adjusted so as to detect a person 70 who has come within a range of about 1.5 [m] from the dust collector 20. Then, the detection unit 52 outputs detection information to the switching unit 53 when the person 70 is detected.

The switching part 53 is attached to the opening part of the first outlet 50, and applies the first pressurization from the first outlet 50 in the second direction 33 along the floor surface 7a (or diagonally upward than the second direction 33). A first state in which the air 60 is blown out and a second state in which the first pressurized air 60 is blown out from the first outlet 50 in the third direction 34 along the wall surface 9a are switched. Specifically, when the switching unit 53 does not receive detection information from the detection unit 52, the switching unit 53 switches the blowing direction of the first pressurized air 60 to the second direction 33. Then, the dust collection system 1a executes the dust collection operation in the state shown in FIG. 7(b). On the other hand, when the switching unit 53 receives the detection information from the detection unit 52, the switching unit 53 switches the blowing direction of the first pressurized air 60 from the second direction 33 to the third direction 34. Then, the dust collection system 1a continues the dust collection operation in the state shown in FIG. In the modified example of the dust collection system 1a, when the person 70 approaches the vicinity of the dust collector 20 as described above, the first pressurized air 60 is blown out in the third direction 34. It is possible to prevent the air 60 from hitting the person 70 and making him feel uncomfortable.

The dust collector according to the present invention can be applied to a dust collector that collects dust swept out inside a building structure.

1 Dust collection system 1a Dust collection system 2 Compressor 3 Air tank 4 Machine room 5 Living room 6 Entrance 7 Under the floor 7a Floor 8 Attic 9 Wall 9a Wall 9b Wall 10 Regulator 11 Solenoid valve 12 Supply duct 13 Switch 14 Discharge duct 15 Collection box 16 Distributor 20 Dust collector 20a Housing 21 Suction port 22 Third side wall 23 First side wall 23a Nozzle hole 24 Second side wall 25 Top plate 26 Suction space 26a Space 27 Hole 28 Discharge port 29 First nozzle 31 Bottom plate 32 First Direction 33 Second direction 34 Third direction 35 Fourth direction 40 Building structure 41 Induced airflow 42 Airflow 50 First outlet 51 Second outlet 52 Detection section 53 Switching section 60 First pressurized air 61 Second pressurized air 62 Airflow 63 Airflow 64 Third pressurized air 70 people

Claims (5)

a casing having a suction space;
a suction port that is provided in the casing at a lower end on the indoor side of a wall surface of the building structure and that is capable of taking in dust while sucking air from the room into the suction space;
a first blowout port provided on the wall surface vertically above the suction port and blows out first pressurized air from the wall surface toward the room;
a first nozzle that is provided on a first side wall of the housing and blows out second pressurized air in a first direction from the first side wall to a second side wall opposite to the first side wall;
an exhaust port provided on the second side wall to discharge the dust together with the second pressurized air and the air sucked into the suction space;
The suction port extends along the first direction between the first side wall and the second side wall, and is attracted by the second pressurized air blown out from the first nozzle to draw the air from the outside. Inhale the induced air into the suction space,
The first blowout port is provided on the wall surface at a position a predetermined distance from the suction port,
An air curtain is formed by blowing out the first pressurized air from the first outlet,
The dust collector is characterized in that the air curtain suppresses air above the air curtain from flowing into the suction port . The first air outlet is characterized in that the first pressurized air is blown out from the first air outlet in a second direction along a floor surface outside the housing or diagonally upward than the second direction. The dust collector according to claim 1. a casing having a suction space;
a suction port that is provided in the casing at a lower end on the indoor side of a wall surface of the building structure and that is capable of taking in dust while sucking air from the room into the suction space;
a first blowout port provided on the wall surface vertically above the suction port and blows out first pressurized air from the wall surface toward the room;
provided on a first side wall of the housing, from the first side wall to a second side wall facing the first side wall;
a first nozzle that blows out second pressurized air in a first direction;
an exhaust port provided on the second side wall to discharge the dust together with the second pressurized air and the air sucked into the suction space;
The suction port extends along the first direction between the first side wall and the second side wall, and is attracted by the second pressurized air blown out from the first nozzle to draw the air from the outside. Inhale the induced air into the suction space,
The first air outlet blows out the first pressurized air from the first air outlet in a second direction along a floor surface outside the casing or obliquely upward than the second direction,
In the room, further comprising a second outlet that blows out third pressurized air toward the intake port,
The dust collector, wherein the third pressurized air flows along the floor between the first pressurized air blown out from the first outlet and the floor. a first state in which the first pressurized air is blown out from the first outlet in the second direction or obliquely upward than the second direction; and a third direction from the first outlet in a third direction along the wall surface. a switching unit that switches between a second state in which the first pressurized air is blown;
a detection unit that detects a person around the first air outlet;
Furthermore,
The dust collector according to claim 3, wherein the switching unit switches to the second state when the detection unit detects a person. The dust collector according to claim 1, wherein the first blow-off port blows out the first pressurized air in a third direction along the wall surface.

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