JP3208642B2 - Suction device and air purifier provided with the device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device for sucking locally generated contaminated air and an air cleaner provided with the suction device.

[0002]

2. Description of the Related Art As an example of a conventional example having a suction device,
Describe the air purifier. FIG. 16 shows a conventional air purifier, in which 1 is a hollow main body, 3 is an air suction port provided on the front surface of the main body 1, and 4 is an air outlet provided on the upper surface of the main body 1.

[0003] In the air purifier configured as described above,
As shown in FIG. 16, the air around the air suction port 3 is
The air is sucked from the air suction port 3 by the suction action of a fan (not shown) installed in the inside. This sucked air is
After being filtered and purified by a filter or the like disposed inside the main body 1, it was discharged from the air outlet 4.

In such an air purifier, since a wide range of air is sucked from the entire area around the air suction port 3, the flow rate of the air sucked into the air suction port 3 increases as the distance from the air suction port 3 increases. It decreases sharply. For this reason, contaminated air containing smoke, dust, and the like generated from a place distant from the air suction port 3 cannot be effectively sucked.

[0005]

Since the conventional air purifier is constructed as described above, although the concentration of dirt in the air around the main body gradually decreases, it occurs at a place distant from the main body of the air purifier. Contaminated air containing tobacco smoke, dust and the like diffuses before being sucked into the air purifier, and there is a problem that it is not effectively sucked into the air suction port.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and not only sucks air around the main body but also includes tobacco smoke and dust generated at a place away from the apparatus. It is an object of the present invention to obtain a suction device that effectively sucks contaminated air without diffusing the air, and an air purifier equipped with the suction device.

[0007]

According to a first aspect of the present invention, there is provided a suction device having an air outlet for blowing air in a direction perpendicular to a direction of an air flow sucked from an air inlet. A wall is provided on the back surface, and the air outlet is disposed close to the surface provided with the air inlet.

An air purifier according to a second aspect of the present invention includes a main body having an air inlet and an air outlet, and a filter disposed near the air inlet to filter the sucked air. In the air purifier that blows out the air filtered by the air blower from the air blower, an air blower that blows out the air in a direction perpendicular to the direction of the airflow of the suction is disposed close to the surface provided with the air inlet. The air flow path of the air blown from the air outlet is bent inward in front of the air outlet, and further bent outward to communicate with the outlet.

An air purifier according to a third aspect of the present invention includes a main body having an air inlet and an air outlet, and a filter arranged near the air inlet to filter the sucked air. In the air purifier that blows out the air filtered by the air outlet from the air outlet, the first air outlet that blows out air in a direction perpendicular to the direction of the air flow of suction is provided near the surface provided with the air inlet. And a second air outlet for blowing air in a direction perpendicular to the direction of the air flow of the suction at a place not close to the surface of the air suction port, and a first or second air outlet. A channel switching mechanism for selecting one of the outlets and switching the outlet channel is provided.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a perspective view showing an appearance of a suction device according to a first embodiment of the present invention, and FIG. 2 is a sectional side view. In the figure, 1 is a main body of a suction device, 3 is an air suction port for sucking air, 5 is an air outlet arranged close to the surface provided with the air suction port 3, and 12 is an air suction port. A suction flow path through which the sucked air passes, 13 is an outlet flow path through which air supplied to the air outlet 5 passes, 14 is a suction flow sucked into the air inlet 3, and 15 is a suction flow from the air outlet 5. This is a blowout flow blown in a direction substantially perpendicular to the suction flow 14. Reference numeral 16 denotes an induced flow induced by the outlet stream 15, 16 (a) is an induced stream generated on the front side of the outlet stream 15, and 16 (b) is an induced stream generated on the rear side of the outlet stream 15.

Next, the principle of operation of the induced flow will be described with reference to FIGS. As shown in FIG. 3, it is generally known that when air is blown in a certain direction, the atmosphere of the blowout flow 15 is attracted in a substantially vertical direction toward the blowout flow 15 as shown by an arrow. I have. Therefore,
As shown in FIG. 4, when the blowing flow 15 is blown out in the form of an air curtain, it is considered that an induced flow 16 that is substantially perpendicular to the air curtain is formed. In other words, the outlet flow 15 is located at a location close to the surface on which the air inlet 3 is provided.
Is formed, the atmosphere of the suction device is, as shown in FIG. 2, at the boundary of the outlet flow 15, the induced flow 16 (a) drawn from the front side of the outlet flow 15 and the backflow of the outlet flow 15. An induced flow 16 (b) is formed. Further, even if air is sucked from the air suction port 3, the induced flow 16 (a) is hardly sucked into the air suction port 3, and the flow velocity of the suction flow 14 hardly decreases even if it is separated from the suction device. Therefore, a virtual cavity is formed by the induced flow, and contaminated air or the like generated at a location remote from the suction device main body 1 can be effectively suctioned without diffusing.

The direction in which the blow-off flow 15 is formed does not need to be four directions, but is preferably two or more directions in order to cover the periphery of the air suction port 3 in a wider range. Also,
The shape of the air outlet 5 need not be a continuous shape as shown in FIG. 2, and it goes without saying that the same suction effect can be obtained even if the air outlet 5 is divided into a plurality.

The air outlet 5 is disposed close to the surface on which the air inlet 3 is provided. The portion close to the surface of the air inlet 3 is defined, for example, in the air suction direction. The drawing shows a portion where the sucked air is not diffused by the induced flow 16 generated by the blowout flow 15 blown out in a direction substantially perpendicular to the direction.

Embodiment 2 FIG. FIG. 5 is a perspective view showing an external appearance of a suction device according to a second embodiment of the present invention, in which an air outlet 5 is provided on an entire periphery of a portion close to a surface where an air inlet 3 is provided.
In the figure, reference numeral 1 denotes a main body of the suction device, and reference numeral 15 denotes a blowout flow blown in a direction substantially perpendicular to the suction direction of air.

Next, the operation will be described. Since the air outlet 5 is provided on the entire periphery at a position close to the surface on which the air inlet 3 is provided, the blowout flow 15 is
Is blown in all directions. As a result, the entire circumference of the air suction port 3 is covered with the induced flow, so that the flow velocity of the suction flow 14 is more difficult to decrease as compared with the case of the first embodiment,
Contaminated air generated in a distant place can be effectively sucked without diffusing.

Embodiment 3 FIG. 6 shows a sectional side view according to Embodiment 3 of the suction device of the present invention, and FIG. 7 is a sectional side view.
In the third embodiment, the blowout flow 15
A difference from the above embodiment is that a turning component is added to the above. In the figure, 1 is a main body of the suction device, 3 is an air inlet, 12 is a suction flow channel, 13 is a blow-off flow channel, and 14 is a suction flow. In order to add a swirl component to the blowout flow 15, for example, the shape of the air blowout port 5 is realized by forming the blowout flow 15 obliquely so as to blow obliquely.

Next, the operation will be described. Outlet flow 15
, The density of the blow-off flow 15 in the periphery of the air inlet 3 is further increased as compared with the case where no swirl component is added. Then, as the density of the blowout flow 15 increases, as shown in FIG. 7, the induced flows 16 (a) and 16 (b) induced by the blowout flow 15 also increase. As compared with the case where no suction air flow is provided, the flow velocity of the suction flow 14 is less likely to decrease, and contaminated air or the like generated at a distant place can be effectively sucked without diffusing.

Embodiment 4 FIG. 8 is a perspective view showing an external appearance of a suction device according to a fourth embodiment of the present invention, and FIG. 9 is a sectional side view. In the figure, 1 is the main body of the suction device, 3 is the air inlet, 6 is the wall surface which is a part of the main body arranged on the back of the blowout flow 15, 12 is the suction flow passage, 13 is the blowout flow passage, 14
Is the suction flow. 16 (a) and 16 (b) are induced flows.

Next, the operation of the wall surface 6 will be described. When the outlet stream 15 is blown out in the form of an air curtain, the atmosphere is induced by the outlet stream 15 and the induced flows 16 (a) and 16 (b).
Is formed. Here, as in the present embodiment, by providing the wall surface 6 provided on the main body 1 on the back portion of the blowout flow 15, the atmosphere on the back side of the blowout flow 15 can form the induced flow 16 (b). Absent. Therefore, the blowout flow 15 is not decelerated by entraining the backside atmosphere, and
The flow velocity is less likely to decrease even if the distance from the distance increases. And
As shown by the arrow in FIG. 9, the induced flow 16 (a) increases, the flow velocity of the suction flow 14 is hardly further reduced, and contaminated air generated at a remote place can be effectively sucked without diffusing.

Further, even when a wall surface is provided on a part of the back side of the blow-off flow 15, the flow rate of the suction flow 14 is hardly reduced to some extent. From the wall 6 provided on the back of the outlet flow 15
Desirably has a sufficient size and covers most of the back surface of the outlet flow 15. In addition, it is desirable that the position of the wall surface 6 is not far from the outlet flow 15 in order to suppress the outlet flow 15 from entraining the back atmosphere.

When the main body 1 is installed in front of the floor, wall, ceiling, furniture, etc., the same effect can be obtained without forming the wall surface 6 on the main body 1 because the blowout flow 15 suppresses the entrainment of the atmosphere on the back. Is obtained.

Embodiment 5 FIG. 10 is a cross-sectional side view according to Embodiment 5 of the suction device of the present invention, and is provided with a slide mechanism 18 for adjusting the opening ratio of the air outlet 5. In the figure,
3 is an air inlet, 5 is an air outlet, 6 is a wall disposed on a part of the back surface of the outlet flow 15, 12 is a suction flow passage, 13 is a discharge flow passage, and 14 is a suction flow. 16 (a) and 16
(b) is the induced flow.

Next, the operation of the slide mechanism 18 will be described. By moving the slide mechanism 18 in the front-rear direction, the opening ratio of the air outlet 5 changes, and accordingly, the flow velocity of the outlet flow 15 also increases or decreases. When the air outlets are divided, the slide mechanism 1 is provided for each air outlet.
If the adjustment is provided by providing 8, the distribution of the blowing flow 15 can be changed, and the induced flow 16 corresponding to the area to be sucked can be distributed. Then, the air to be sucked can be effectively sucked without diffusing according to the distance to the air to be sucked.

Also, for example, when the suction device is placed on the floor despite the air outlet being provided on the entire periphery of the air inlet, the blow-off flow 15 can cause the wall, objects, etc. around the main body 1 to be used. In some cases, the air in the area to be sucked is pushed back, or the induced flow 16 (a) is disturbed, so that a sufficient suction effect cannot be obtained. However, a slide mechanism for adjusting the opening ratio of the air outlet. According to the present embodiment, by closing a specific portion of the air outlet 5 by the slide mechanism, the blowout flow 15 can be prevented from being blown out in the direction of a wall or an object, and the wall or the like is provided around the main body. Even when an object or the like exists, the blowoff flow 15 pushes back the air in the area to be sucked or the induced flow 1
6 (a) is prevented.

As means for adjusting the flow velocity of the blow-off flow 15, not only means for changing the opening ratio of the air outlet 5 as in a slide mechanism, but also the amount of air supplied to the air outlet 5 is increased or decreased. It may be adjusted.

Embodiment 6 FIG. FIG. 11 is a cross-sectional side view according to Embodiment 6 of a floor-standing type air cleaner provided with a suction device according to the present invention.
In the figure, reference numeral 5 denotes an air outlet, which is disposed close to the surface on which the air inlet 3 is provided. 6 is a wall surface, 8 is a fan, 9 is a motor for driving the fan 8, 10 is a filter for filtering and purifying contaminants in the air sucked from the air suction port 3, 12 is a suction flow path, and 13 is a blow-off flow. It is a flow path and is bent inward just before the air outlet 5, and further bent substantially perpendicularly to the direction in which air is sucked outward to communicate with the air outlet 5. 14 is a suction flow, 15 is a blowing flow, and 16 (a) is an induced flow. According to the present embodiment,
The air sucked from the air suction port 3 is filtered through a filter and then reused as an outlet stream 15 from the air outlet 5.

Next, the operation will be described. Dirty air in the room where the air purifier is installed or the like is sucked from the air inlet 3 by the suction action of the fan 8 disposed in the suction flow channel 12 inside the main body 1. The sucked air is filtered into clean air through the filter 10 provided in the suction flow channel 12. Therefore, even if the clean air filtered by the filter 10 is discharged again into the room or the like, the room or the like is not polluted.

According to the present embodiment, as shown in FIG.
Since the clean air that has passed through the filter 10 is directly supplied to the outlet flow channel 13, the contaminated air generated at a location far away from the main body 1 can be efficiently sucked in without diffusing. In addition, since the outlet flow channel 13 is bent inward in front of the air outlet 5 and further bent substantially perpendicularly to the direction of sucking air outward, a long air path is provided. And the outlet stream 15 can be guided vertically. The supply of air to the outlet flow channel 13 may be achieved by newly providing a blower fan.

Further, since the air purifier shown in the sixth embodiment is of a floor-standing type, the blow-off flow 15 for blowing to the floor side is not formed.
The air outlet may be provided all around the air inlet, and the outlet flow may be formed all around the air inlet. The position of the air outlet can be appropriately selected depending on the location where the air purifier is installed.

Embodiment 7 FIG. 12 is a perspective view showing Embodiment 7 of the air purifier provided with the suction device according to the present invention, and FIG. 13 is a sectional side view. In the drawing, 1 is a main body of an air purifier, 2 is a grill for preventing a finger or an object from entering the air inlet 3, 4 and 5.
Is an air outlet, 6 is a wall surface, 7 is an operation unit provided with a switch mechanism for operating the device, 8 is a fan, 9 is a motor, and 10 is a contaminated air in the air sucked from the air suction port 3. The filter 11 for purifying is a channel switching mechanism for switching the air outlet, and the air outlet is switched by the channel switching mechanism 11. 12 is a suction flow channel, 13 is a blow-off flow channel, 14 is a suction flow, 15 is a blow-off flow, 16 (a) is an inducing flow, 17 is a blow-off flow blown out from the air outlet 4, The air outlet is changed to the air outlet 4 by the mechanism 11.
It is blown out when you switch to.

Next, the operation of the flow path switching mechanism 11 will be described. When the flow path switching mechanism 11 is at the position (b) in the drawing, the air sucked from the air inlet 3 is blown out as it is from the air outlet 4 to the upper part of the air cleaner main body as the blowout flow 17. In this case, the induced flow 16 (a) is hardly formed, and a wider range of air is sucked than the entire area around the air suction port 3 as indicated by a broken arrow. When the air outlet 4 is used, the air in the entire room in which the main body 1 is installed is gradually purified. However, since the flow rate of the suction flow 14 rapidly decreases as the air flow away from the air inlet 3, the main body 1 is used. When sucking contaminated air such as tobacco smoke generated in a place away from the room, the air is diffused before being sucked. Therefore,
When contaminated air such as tobacco smoke generated at a distant place is sucked without diffusing, it is better to switch the flow path switching mechanism 11 to the position (a) in the figure.

When the flow switching mechanism 11 is switched to the position (a), the air sucked from the air inlet 3 is blocked by the flow switching mechanism 11 and blown out from the air outlet 4. The air is blown out from the air outlet 5 and forms the induced flow 16 (a) by the blowout flow 15. In this case, the flow velocity of the suction flow 14 is hard to decrease even if it is away from the air suction port 3, and contaminated air such as cigarette smoke generated at a place away from the main body 1 can be effectively sucked without diffusing.

Further, by switching the flow path according to the range of the air to be sucked by the flow path switching mechanism 11, an air purifier which is easy to use for the user can be obtained.

Further, the flow path switching mechanism 11 is not limited to the structure shown in FIG. 13, but may have a structure as shown in the sectional view of FIG. 14 (a) or (b).

In the case of a floor-standing type air purifier shown in FIG. 12, if the blow-off flow 15 is not blown out in the floor direction, the blow-out flow 15 collides with the floor or the like and pushes back the air to be sucked. And the induced flow 16 (a) is not disturbed.

Embodiment 8 FIG. FIG. 15 is a cross-sectional side view of an air purifier according to the eighth embodiment. In the figure, 4 and 5 are air outlets, 6 is a wall surface, 8 and 8b are fans, 9 and 9b are fans 8 or 8
b, a filter for filtering and purifying contaminated air in the air sucked from the air suction port 3;
Is a suction flow channel, 13 is a blow-off flow channel, 14 is a suction flow, 15
Is an outlet flow, 16 (a) is an induced flow, and 17 is an outlet flow blown out from the air outlet 4.

If the pressure loss in the outlet flow channel 13 is large and air cannot be sucked in from the air inlet 3 at a sufficient flow rate, a fan 8b for supplying air to the outlet flow channel 13 is provided. Due to the pressure loss of the outlet flow channel 13, the air inlet 3
Therefore, the amount of air sucked does not decrease. In addition, if the air volume of the outlet stream 15 is adjusted by the fan 8b, the outlet stream 15 corresponding to the range of the air to be sucked can be obtained.

When only the fan 8 is driven, the induced flow 16 (a) is hardly formed, and a wide range of air is sucked from the vicinity of the air suction port 3 as indicated by a broken arrow. In this case, the air in the entire room in which the main body 1 is installed is gradually purified. However, since the flow velocity of the suction flow 14 rapidly decreases as the main body 1 moves away from the air suction port 3, the air is generated at a place away from the main body 1. Contaminated air such as smoke from tobacco is diffused before being sucked into the air suction port 3. Therefore, if you want to suck air away from the main body 1,
It is better to drive the fan 8b.

The shape of the air inlet and the shape of the air outlet can be appropriately changed depending on the place to be used, the amount of air to be sucked, and the suction range.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a suction device according to Embodiment 1 of the present invention.

FIG. 2 is a sectional side view showing the suction device according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a principle of generation of an induced flow.

FIG. 4 is a diagram showing a principle of generation of an induced flow.

FIG. 5 is a perspective view showing an external appearance of a suction device according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing an appearance of a suction device according to a third embodiment of the present invention.

FIG. 7 is a sectional side view showing a suction device according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing an appearance of a suction device according to a fourth embodiment of the present invention.

FIG. 9 is a sectional side view showing a suction device according to a fourth embodiment of the present invention.

FIG. 10 is a sectional side view showing a suction device according to a fifth embodiment of the present invention.

FIG. 11 is a cross-sectional side view showing an air purifier provided with a suction device according to Embodiment 6 of the present invention.

FIG. 12 is a perspective view showing an external appearance of an air purifier provided with a suction device according to Embodiment 7 of the present invention.

FIG. 13 is a cross-sectional side view illustrating an air cleaner including a suction device according to a seventh embodiment of the present invention.

FIG. 14 is a sectional side view showing another flow path switching mechanism.

FIG. 15 is a cross-sectional side view showing an air purifier provided with a suction device according to Embodiment 8 of the present invention.

FIG. 16 is a sectional side view showing a conventional air purifier.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body, 2 grills, 3 air inlets, 4 air outlets, 5 air outlets, 6 wall surfaces, 7 operation parts, 8 fans, 9 motors, 10 filters, 11 flow switching mechanism, 12 suction flow channels, 13 Outlet flow channel, 14 suction flow, 15 outlet flow, 16 (a), (b) induced flow, 17
Outlet flow, 18 slide mechanism.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 46/00 F24F 13/06 F24F 13/28

Claims (3)

(57) [Claims] 1. A direction of an air flow sucked from an air inlet.
Equipped with an air outlet that blows air in the vertical direction,
A wall is provided on the back of the air outlet, and the air outlet is provided.
Is arranged in close proximity to the surface on which the air suction port is provided.
And a suction device. 2. A body having an air inlet and an air outlet.
And disposed in the vicinity of the air suction port to filter the suction air.
And a filter that passes through the filter.
Air from the air outlet to the air purifier
In the direction perpendicular to the direction of the suction airflow.
The air outlet for blowing air is provided with the air suction port.
Placed close to a closed surface and blown out from the air outlet.
Air outlet channel is bent inward just before the air outlet
Bend outward and communicate with the outlet.
An air purifier characterized. 3. A body having an air inlet and an air outlet.
And disposed in the vicinity of the air suction port to filter the suction air.
And a filter that passes through the filter.
Air from the air outlet to the air purifier
In the direction perpendicular to the direction of the suction airflow.
A first air outlet for blowing air is provided by the air inlet;
Disposed in close proximity to the surface provided, and on the surface of the air suction port.
Perpendicular to the direction of the air flow of the suction at places not in close proximity
When a second air outlet that blows air in the
To select either the first or second air outlet.
It is characterized by having a flow path switching mechanism that switches the blowing flow path
And air purifier.