JPH1016548A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small air cleaner, of low noise and of low air pressure by furnishing an air blasting part with a fan built in it and an air duct into which air is blasted from this air blasting part, forming a side wall of the air duct of a filter and making the outer surface side of this filter a diffuser. SOLUTION: It is furnished with a housing 1 an upper part of which is an air blasting part 1a with a cross flow type fan 2 built in it and a lower part of which is an air duct 1b, a front surface of the air blasting part 1a is a suction port 10 and an air blasting port 20 is provided on the back side of a lower surface. An upper end opening of the air duct 1b is connected to the air blasting port 20, front and rear side walls are formed of filters 3, 3, and a lower end opening is closed by a cover 1c. Additionally, an activated carbon filter 30 is arranged on an upper end opening part connected to the air blasting part 20. When the fan 2 is driven, air sucked from the suction port 10 passes the filters 3, 3 after smell is removed by the activated carbon filter 30, and accordingly, dust in the air is removed and the air is blasted from diffusers 11, 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier, and more particularly to an air purifier used for purifying air in a vehicle cabin.

[0002]

2. Description of the Related Art As an air purifier installed in a vehicle cabin, an air purifier shown in FIG. 13 has been conventionally provided. This air purifier is mounted on a rear tray 90 that separates a trunk room 9 behind a seat 8 from a vehicle interior. A suction port 10 is provided in a housing 1 in which a suction port 10 and a blowing port 11 are open on the upper surface. A sirocco-type fan 2 is installed directly below the air conditioner, and a filter 3 is installed immediately below the air outlet 11. After passing through the wind tunnel 12 and the filter 3, the air flows into the vehicle interior from the outlet 11. In the figure, 13 is a packing, 14 is a grill, 15 is a grill packing, 16
Is a mounting bracket.

[0003]

In this case, the opening area of the outlet 11 cannot be made larger than the size of the housing 1, and the filter 3 becomes smaller accordingly. For this reason, the pressure loss in the housing 1 is large, so that the noise is increased and the wind pressure of the wind blown from the outlet 11 is also increased. Also, the housing 1 is configured such that the installation portion of the fan 2 and the installation portion of the filter 3 are connected by an air tunnel portion 12, but the wind tunnel portion 12 only connects such two members.
Is required, which results in an increase in the size of the housing 1 and also limits the usable vehicles.

[0004] The present invention has been made in view of such a point, and an object of the present invention is to provide an air purifier which is small in size, the installation place is not limited, and has low noise and low wind pressure.

[0005]

According to the present invention, there is provided a blower unit having a built-in fan, and a wind tunnel into which air is blown from the blower unit. Is characterized in that the outer surface side is a blowing port. By using the side wall of the wind tunnel as a filter and the outer surface side of the filter as an outlet, the opening area of the outlet and the filter area can be made larger than the entire shape.

[0006] In this case, it is preferable that the filtration area of the filter is larger than the opening area of the suction port in the blowing section. Further, it is more preferable that not only the side wall of the wind tunnel but also the wall surface at the back end is formed by a filter and the outer surface side of the filter is used as the outlet. A pre-filter having a lower pressure loss than the filter may be disposed between the filter and the blower.

[0007] With regard to the mounting and fixing of the air purifier, when one surface of the blower section is a fixed surface and the surface on the same side as the fixed surface in the wind tunnel is the outlet, the above surface of the wind tunnel is It is preferable that the fixed surface of the blower is not parallel to the fixed surface. A hook for hooking and locking may be provided as a mounting member. In this case, it is preferable that the hook be slidable with respect to the blower or the wind tunnel.

An arm having a mounting hole at the tip may be provided as a mounting member. In this case, the arm may be rotatable with respect to a blower or a wind tunnel.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described. The air purifier shown in FIGS. 1 and 2 has a blower section 1a having a cross-flow type fan 2 built in the upper part and a wind tunnel 1b in the lower part. The blower section 1a has a suction port 10 on the front surface and a blow port 20 on the back side of the lower surface.

The wind tunnel 1b is formed by connecting an upper end opening to an air outlet 20, and front and rear side walls are formed by filters 3 and 3,
A lower end opening is closed by a cover 1c, and an activated carbon filter 30 for deodorization and deodorization is provided in an upper end opening connected to the air outlet 20. In this air purifier, the outer surface of each filter 3 serves as a blow-out port 11, and a protective cover 31 made of a resin molded product or a metal plate having a predetermined opening ratio is provided on the outer surface of the filter 3. Is provided, and a filter 3 due to external stress or the like is provided.
Is prevented from being deformed.

When the fan 2 is driven, the air sucked from the suction port 10 on the front surface is filtered by the activated carbon filter 30 to remove the odor, and then passes through the filters 3 and 3 on both front and rear sides of the wind tunnel 1b, so that the air in the air is removed. The dust is removed, and the dust also exits through the outlets 11 on both front and rear sides. The outlet 11 is larger than the opening area of the inlet 10.
Because the opening area of the filter and the filtration area of the filter 3 are larger and the cross-flow type fan 2 capable of reducing the wind speed as compared with the air volume is used, the wind pressure And the noise level is low.

In FIG. 3, the pressure loss is reduced by increasing the thickness before and after the wind tunnel 1b to increase the internal space of the wind tunnel 1b, and at the same time the arrangement space for the activated carbon filter 30 is increased. As shown in FIG. 4, if the filter 3 is arranged also at the lower end corresponding to the rear end of the wind tunnel 1 b and the outer surface thereof is used as the outlet 11, the total area of the outlet 11 can be further increased, and the filter 3 Area also increases. In this case, the filter 3 disposed at the lower end of the wind tunnel 1b
Is preferably connected to the filter 3 located on the front and rear side walls of the wind tunnel 1b in a circular arc.

To install the air purifier thus constructed in the interior of a vehicle, it is preferable to attach a hook 4 as shown in FIG. The hook 4 fixed to the upper surface of the housing 1 by the screw 41 and extending rearward is inserted into the entrance of the window glass 60 of the door panel 6 as shown in FIG. 7 and hooked and locked, or as shown in FIG. It is suspended in the passenger compartment by hooking and locking the upper end.

At this time, since the air purifier also has the outlet 11 at the back thereof, the hole 40 of the hook 4 into which the screw 41 is inserted is formed as an elongated hole as shown in FIG. If this is done, as shown in FIG. 7, even when the thickness L of the door panel 6 is large, it can be mounted with a space secured between the door panel 6 and the door panel 6. FIG.
As shown in FIG. 10, a U-shaped arm 5 connected to both side surfaces of the housing 1 may be used as a mounting member. The arm 5 is hung on a member in the vehicle compartment and suspended. The arm 5 of the illustrated example is provided with a horizontally long mounting hole 51 at the end thereof, and the leg of the headrest 80 mounted on the upper end of the seat 8 is inserted into the mounting hole 51 as shown in FIG. 8 so that it can be mounted on the back side.

The arm 5 is connected to the housing 1 by a shaft 50. If the arm 5 can be rotated about the shaft 50 with respect to the housing 1, the arm 5 and the housing 1 are connected to each other. By changing the angle, the housing 1 can be supported at an appropriate angle, and the size of the gap between the rear surface of the seat 8 and the rear surface of the housing 1 can be changed.

The rear surface of the blower 1a of the housing 1 is
When mounting in a state where it is in contact with
As shown in FIG. 2, the back surface of the wind tunnel 1b and the back surface of the blower 1a are non-parallel (to form an obtuse angle in the illustrated example).
By doing so, it is possible to prevent the back surface with the outlet 11 from being blocked by the wall surface.

[0017]

As described above, according to the present invention, the air blower includes a fan and a wind tunnel into which air is blown from the blower. The side wall of the wind tunnel is formed by a filter, and the outer surface of the filter is formed. Since the side is used as the outlet, the opening area of the outlet and the filter area can be made larger than the overall shape, so that low noise and low wind pressure can be achieved. In addition, since there is no useless space in the housing, the housing can be small and the installation place is not limited.

In this case, the noise and the wind pressure can be further reduced by setting the filtration area of the filter to be larger than the opening area of the suction port in the blower. If not only the side wall of the wind tunnel but also the wall at the back end is formed with a filter, and the outer surface of the filter is used as the outlet, the opening area of the outlet and the filter area can be further increased. Can be further reduced.

A pre-filter having a lower pressure loss than the filter may be provided between the filter and the blower. Clogging of the filter is less likely to occur. With respect to the mounting and fixing of the air purifier, when one surface of the blowing unit is a fixed surface, and the surface on the same side as the fixed surface in the wind tunnel is the outlet, the above-described surface of the wind tunnel and the blowing unit If the surface to be fixed is not parallel, it is possible to prevent the outlet from being blocked by the mounting surface.

If a hook for hooking and locking is provided as a mounting member, installation becomes easy. In addition, if the hook is slidable with respect to the blower or the wind tunnel, the installation location can be further determined, and the outlet can be prevented from being blocked by the mounting surface. Installation is easy even if an arm with a mounting hole at the tip is provided as a mounting member, and if the arm is freely rotatable with respect to the blower or the wind tunnel, the installation location will not be further limited. It is possible to prevent the outlet from being blocked by the mounting surface.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an example of an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a longitudinal sectional view of another example of the above.

FIG. 4 is a longitudinal sectional view of still another example of the above.

FIG. 5 shows the one provided with the above hook, and (a)
Is a front view, (b) is a side view, and (c) is a plan view.

FIG. 6 shows another example having the same hook as above.
(a) is a front view, (b) is a side view, and (c) is a plan view.

FIG. 7 is a cross-sectional view showing an example of attachment using hooks.

FIG. 8 is a side view showing another example of attachment using hooks.

FIGS. 9A and 9B show an arm provided with an arm, wherein FIG. 9A is a front view and FIG. 9B is a side view.

FIG. 10 is a plan view of the same.

FIG. 11 is a side view showing an example of mounting using an arm.

FIG. 12 is a side view showing another example.

13 (a) is a longitudinal sectional view, and FIG. 13 (b) is a cutaway side view, showing a conventional example.

[Explanation of symbols]

 1a blower 1b wind tunnel 2 fan 3 filter 11 outlet

Claims (9)

[Claims] 1. A blower unit having a built-in fan and a wind tunnel into which air is blown from the blower unit. The wind tunnel has a side wall formed by a filter and an outer surface of the filter serving as a blowout port. An air purifier characterized by the following. 2. The air purifier according to claim 1, wherein a filtration area of the filter is larger than an opening area of a suction port in a blowing section. 3. The air purifier according to claim 1, wherein a wall surface at a rear end portion of the wind tunnel is also formed of a filter, and an outer surface side of the filter is an outlet. 4. The air purifier according to claim 1, wherein a pre-filter having a lower pressure loss than the filter is disposed between the filter and the blower. 5. An apparatus according to claim 1, wherein one surface of the blower is a fixed surface and a surface of the wind tunnel on the same side as the fixed surface is an outlet, wherein the surface of the wind tunnel and the fixed surface of the blower are provided. The air purifier according to any one of claims 1 to 4, wherein? 6. The air purifier according to claim 1, further comprising a hook for hooking and locking as a mounting member. 7. The air purifier according to claim 6, wherein the hook is provided so as to be slidable with respect to the blower or the wind tunnel. 8. An arm having a mounting hole provided at a distal end thereof as a mounting member.
An air purifier according to any one of claims 1 to 5. 9. The air purifier according to claim 8, wherein the arm is provided so as to be rotatable with respect to the blower or the wind tunnel.