JP2733092B2 - Air purifier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying apparatus for purifying dirty air in a room or the like.

[Conventional technology]

A conventional air purifier has a structure in which dirty air is introduced into an air inlet only by suction force from the air inlet.

For this reason, the air is purified near the air purifier, but there is a problem that the collection efficiency of the dirty air is poor at a location away from the air purifier, and the purification is difficult.

To solve such problems, Japanese Patent Application No. Sho 62-3
No. 32892 proposes a configuration in which a blower unit is provided separately from an intake unit for air purification, and an elongated intake port and a discharge port provided in each of these units are opposed to each other.

According to this, an air curtain-like airflow is formed between the opposed blowing unit and the intake unit, and this airflow has the effect of inducing surrounding dirty air and blocking the flow of the dirty air. Therefore, the efficiency of collecting dirty air in the room is high, and the purification efficiency is improved.

[Problems to be solved by the invention]

However, since the air outlet of the air blowing unit is merely elongated, the air blowing from the air blowing unit 131 diffuses in the horizontal direction and the air flow area 133 becomes substantially triangular as shown in FIG. Therefore, it is necessary to increase the width of the intake unit 32, and there is a problem that the intake unit 32 is increased in size.

That is, the intake unit 132
Since the blast air flow area 133 to be transported to the air intake unit 132 is substantially triangular, there is a problem that the range in which the dirty air is drawn in is small in proportion to the size of the intake unit 132.

Also, as shown in FIG. 37, in a large room 134, when a plurality of pairs of the blower unit 131 and the intake unit 132 are arranged and arranged, if the blower air flow area 133 is triangular, the blind spot deviating from the blower air flow area 133 is formed. The part 135 occurs greatly,
This blind spot 135 has a problem that dirty air cannot be entrained.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air purifying apparatus in which the diffusion of air blown by a blower unit is small, the blown air flow area can be made substantially square, and the efficiency of collecting dirty air can be improved.

[Means for solving the problem]

The air purifying apparatus according to the present invention includes an air intake unit having an air purifying means and an air blowing unit, and has an elongated air inlet of the air intake unit, and has an air outlet of the air blowing unit opposed to at least both ends thereof. The wind speed distribution of the air outlet of the air blowing unit is configured so that the wind speed of the portion facing the both ends in the width direction of the air inlet is increased, and the discharge direction of the air outlet is changed to the high airflow at both ends in the width direction. Is the direction crossing in front of the air outlet.

[Action]

According to the configuration of the present invention, since air is blown from the blower opening of the blower unit in opposition to at least both ends of the elongated suction port of the suction unit, air curtain-like blow is performed. Dirty air is entrained in the blast and is suctioned and purified by the intake unit.

The blower unit is configured so that the wind speed distribution of the blower outlet is such that the wind speed of the portion facing the both ends in the width direction of the intake port is higher, and the discharge direction of the blower port is higher in the wind speed at both ends in the width direction. Since the direction of the air flow intersects in front of the blowing port, the diffusion of the blowing is small, and the air flow area in the shape of an air curtain has a substantially square shape.

〔Example〕

A first embodiment of the present invention will be described with reference to FIGS.

Two air blow units 1 and one air intake unit 2 are provided on the ceiling in the room. The air intake unit 2 has an elongated air inlet 7 extending horizontally, and two air blow units 1 are arranged opposite to both widthwise ends of the air inlet 7. The discharge direction of the air outlets 3 of these air blow units 1 is a direction in which the respective air blows intersect at the front.

As shown in FIGS. 2 and 3, the blower unit 1 includes a fan 9 such as a multi-blade fan in a cylindrical case 10;
It houses the driving motor 8. The air outlet 3 of the air blowing unit 1 has an elongated nozzle shape slightly widened in the horizontal direction. An intake port 11 is provided on a surface of the case 10 opposite to the blow port 3.

As shown in FIGS. 4 and 5, the intake unit 2 has a box-shaped case 13 containing an air purifying means 17, a fan 15, and a motor 16 for driving the fan. The air purifying means 17 includes an electric dust collecting unit 17a and a deodorizing filter 1 interposed between the intake port 7 and the fan 15 as shown in FIG.
Consists of 7b. An air path wall 18 is formed around the fan 15, and a discharge port 14 is formed at one end thereof.

The operation of the above configuration will be described. The air flow discharged from the air outlets 3 of the pair of air blow units 1 is sucked into the elongated air inlets 7 of the air intake unit 2 facing the front, and an air curtain is formed between the air blow units 1 and the air intake unit 2. Is formed.

This curtain-shaped airflow area 5 and its surroundings 6a, 6
The dirty air of b is entrained in the airflow and is sucked into the intake unit 2. Further, air or the like contaminated with the smoke of tobacco becomes an upflow, but is blocked by the blast airflow and is involved in the blast airflow.

The air sucked into the suction unit 2 is dust-removed and deodorized by the electric dust collection unit 17a and the deodorizing filter 17b, and is discharged as clean air.

As described above, since the surrounding dirty air is entrained and sucked by the blowing airflow, the collecting efficiency of the dirty air and the air cleaning efficiency are good.

In this case, since the blowing direction of the blowing unit 1 is set to the direction in which the blowing air flow intersects in front, the diffusion of the blowing is small, and the blowing air flow area 5 in an air curtain shape has a substantially square shape. Therefore, the collection range of the air that is contaminated by the blowing air (the blowing air flow area 5 and its peripheral portions 6a and 6b) can be expanded, and the air cleaning efficiency is further improved. In addition, since the air is not diffused, the size of the intake unit 2 can be reduced.

In this embodiment, two independent blower units 1 are provided. However, if there is a pillar or the like in the installation location, the distance between the blower openings 3 can be freely changed to avoid obstacles.
Moreover, there is an advantage that each blower unit 1 is small in size and easy to handle, and has good workability.

FIG. 6 shows a blower unit according to the second embodiment.
In this example, one blower unit 21 is provided, and blowers 3 are provided at both ends. The pair of air outlets 3 are arranged opposite to both ends in the width direction of the air inlet 7 of the air intake unit 2 (FIG. 1). The fan 29 of the blowing unit 21 is a wide fan provided in the case 20 over both the blowing ports 3,
It is driven by a motor 28.

With such a configuration, the desired airflow can be formed by one blower unit 21, the number of parts is reduced, and the cost is reduced.

FIG. 7 shows a blower unit according to a third embodiment. In this example, a motor 38 is arranged in the center of a case 30 and a fan 39 is attached to a motor shaft protruding from both sides of the motor 38. Other configurations are the same as those of the second embodiment (FIG. 6). Even in the case of such a configuration, one blower unit
It costs only 31 and can be manufactured at low cost.

FIG. 8 shows a blower unit according to a fourth embodiment. In this example, a plurality of auxiliary air outlets 43 are arranged between a pair of air outlets 3. The case 40 includes the second embodiment (the sixth embodiment).
As in FIG. 1, one wide fan 49 and a motor 48 are housed. The auxiliary air outlets 43 are formed smaller than the air outlets 3 at both ends, so that the amount and speed of the discharged air are reduced.

FIG. 9 shows a fifth embodiment. In this example, an auxiliary blowing unit 51 ′ having an auxiliary blowing port 53 is arranged between a pair of blowing units 51. Each blower unit 51,5
The internal structure of 1 'is the same as that of the first embodiment (FIG. 2).

As in the first and second embodiments, a blind spot 5 '(FIG. 9) is formed at the beginning of the blast airflow region 5 only by blowing air from the pair of air outlets 3. The airflow can be formed in the blind spot 5 ′ by blowing air from the blowing port 53. Therefore, the range in which air contaminated by the airflow can be collected is expanded, and the air cleaning efficiency is further increased.
Since the auxiliary air outlet 53 has a lower wind speed than the air from the air outlets 3 at both ends, the air blow does not spread in front of the air flow area 5. The fourth embodiment (FIG. 8) also provides the same advantages as this embodiment.

FIGS. 10 to 13 show a sixth embodiment. In this example, the blowing direction of the blowing port 63 of the blowing unit 61 is variable in the horizontal direction. Inside the case 60 is the central motor 68
Are provided for each blower port 63. As shown in FIG. 11, the air outlet 63 has a pair of vertical movable guide plates 63b rotatably provided around a support shaft 63c between a pair of horizontal fixed guide plates 63a. Both movable guide plates 63b are connected by a connecting piece 63f via a pin 63e.
3e is loosely fitted in the long hole 63d of the fixed guide plate 63a. In addition,
By rotating a variable voltage dividing resistor (not shown) of the motor 68 in conjunction with the rotation of the movable guide plate 63b, the rotation speed of the motor 68 is increased or decreased.

According to this configuration, by adjusting the discharge direction by changing the angle of the movable guide plate 63b, it is possible to adjust the diffusion width of the airflow area 5. For example, as shown in Fig. 12,
When the distance between 61 and the intake unit 2 is long, the angle of inclination θ of the air outlet 63 inward in the air blowing direction is increased, and diffusion is reduced. When the distance is short as shown in FIG. 13, the inclination angle θ is reduced. By adjusting in this way,
Even if the distance between the blower unit 61 and the intake unit 2 changes due to the size of the room to be installed or the like, the diffusion width near the intake unit 2 in the blower airflow region 5 can be kept constant, and a reduction in the collection efficiency can be prevented.

In addition, when the distance is long, the amount of surrounding air is increased, so that the amount of air blown to the intake unit 2 becomes larger than the amount of air that can be sucked by the air intake unit 2 and overflows. Since the number of rotations of the motor 68 of the blower unit 61 is reduced by the variable voltage dividing resistor linked to the direction, the balance between the discharge airflow of the blower unit 61 and the suction airflow of the intake unit 2 is obtained. Therefore, overflow does not occur, and a decrease in collection efficiency can be prevented.

FIG. 14 shows a seventh embodiment. In this example, three sets of the air blowing unit 1 and the air intake unit 2 in the first embodiment are arranged side by side on the ceiling of a large room.

Since the blast air flow area 5 of each set has a substantially square shape, when a plurality of the blast air flow areas 5 are arranged side by side as described above, a blind spot that deviates from the blast air flow area 5 is unlikely to occur, and dirty air is collected from the entire ceiling of the room. You can do a collection.

15 to 19 show an eighth embodiment. In this example, three sets of the blower unit 71 and the intake unit 2 are arranged side by side, and one set of the blower units 71 adjacent to each other is also used. The blowing unit 71 has two blowing ports 63
And each air outlet 63 is adjacent to the intake unit 2
It is opened opposite to. The blower unit 71 is configured such that one motor and a fan (not shown) are used for both the blower ports 63. The air outlet 63 has a vertically movable guide plate 63b rotatably provided between two horizontal fixed guide plates 63a 'as shown in FIG. 19, and has the same structure as the example of FIG. There is.

In the case of this configuration, the number of the blower units 71 can be reduced because the blower unit 71 is also used for the adjacent intake unit 2. As a result, the cost is reduced and
The ceiling surface is neat. Also, as shown in FIG.
When adding the intake unit 2 shown by a chain line, one blower unit 71 shown by a chain line is added, and an intermediate blower unit 71 is added.
It is only necessary to change the direction of one of the air outlets 63. Therefore, expansion can be performed easily. In addition, by changing the direction of the air blow port 63 to concentrate the air blow in the heavily soiled area, the collection efficiency can be increased.

20 to 22 show a ninth embodiment. In this example, an air outlet 83 is provided on the back surface of the air intake unit 82, and the air flow areas 5 are arranged in two places side by side in the air blowing direction of the two air intake units 82.
Is formed. The intake unit 82 is provided with an air outlet 83 on the back side of the intake port 7 and a downward exhaust port 84 as shown in FIG. 22, and other configurations are the same as those in the example of FIG. . A plurality of outlets 84 are provided, each of which can be closed by a lid member (not shown).

In the case of such a configuration, the collection range can be expanded by setting the blowing air flow area 5 to two places in the blowing direction. In this case, since the air intake unit 82 in the intermediate portion also serves as the air blowing means, the number of the air blowing units 1 to be installed can be reduced, which is economical and the ceiling surface is clean.

The intermediate intake unit 82 discharges a part of the sucked air downward from the outlet 84. This is for the following reason. That is, the two suction units 82 are of the same model and have the same suction capacity. However, the middle intake unit 82
Since the blown airflow discharged from the blower outlet 83 entrains the surrounding air, if all the sucked air is blown, the air cannot be sucked by the suction unit 82 on the right side of the drawing and overflow occurs, and the collection efficiency is reduced. In order to prevent this, a part of the suction air is discharged downward.

FIGS. 23 to 28 show a tenth embodiment. In this example, the positive ON 93 is emitted from the air outlet 3 of the air blowing unit 91 to purify the air. That is, FIGS.
As shown in FIG. 26, counter electrodes 94 are provided above and below the blowing port 3 of the blowing unit 91, and a discharge wire 95 is provided between the
By connecting a DC power source E ₁ and V, the positive ions 93 are discharged toward the counter electrode 94 from the discharge line 95 (corona discharge).
Then, the positive ions 93 are emitted from the air outlet 3 by the fan 9. Further, as shown in Figure 27 and FIG. 28, in the interior of the intake port 7 side of the intake unit 92, a positive voltage is applied electrode plate 96 and the negative voltage from the DC power source E ₂ is applied The electrode plates 97 are provided alternately, and the electrode plates 96 and 97 and the deodorizing filter 17b constitute an air purification unit 98.

The operation of the above configuration will be described. Positive ions 93 emitted from the pair of blowing units 91 are dust 99 floating in the air.
(Fig. 25), and the dust 99 is positively charged. The charged dust 99 is sucked into the suction port 7 by the suction force of the negative electrode plate 97 and the fan 15 of the suction unit 92.

In this way, the garbage 99 is charged and sucked,
The collection efficiency of 99 is further improved.

FIG. 29 and FIG. 30 show the intake unit 100 in the eleventh embodiment. 101 is a discharge wire, 102 is a dielectric filter, 1
03 is a conductor. Discharge wire between discharge wire 101 and conductor 103
101 side DC power supply E ₃ so that the positive is connected.
Note that the discharge wire 101, the dielectric filter 102, the conductor 103, and the deodorizing filter 17b constitute an air purification unit 104.

With this configuration, the electric field generated between the discharge line 101 and the conductor 103 causes the dielectric filter 102 to move as shown in FIG.
Are polarized negatively on the intake port 7 side and positively polarized on the opposite side. Therefore, the positively charged dust is sucked by the conductive filter 102 and enters the intake unit 100.

FIG. 31 to FIG. 33 show a blower unit 110 according to a twelfth embodiment. Inside the blower unit 110, the ionizing wire
111 and alternately arranged blast plates 112 and corresponding plates 113
A positive voltage is applied to the ionization line 111 and the corresponding electrode plate 113 by a DC current E ₄ , and a negative voltage is applied to the wind-induced electrode plate 112. Ionization line 111
Positive ions emitted from the blast plate 112 and the corresponding plate 113
Is attracted by the electric field generated between them, thereby generating wind (ion wind). Part of the positive ions is adsorbed by the blast electrode plate 112, and part of the ions is discharged from the air outlet 114 of the air blowing unit 110 by the ion wind, and the floating dust is charged and sucked by the air intake unit.

FIG. 34 and FIG. 35 show a thirteenth embodiment.
This embodiment shows the positional relationship between the blower unit 120 and the intake unit 121, and the blower unit 120 and the intake unit 121 may be any of the above embodiments. That is, the intake unit 121 is provided below the blower unit 120.

With this configuration, for example, the airflow with smoke is carried below the blower unit 120, so that the intake unit 121
By arranging them below, the collection efficiency can be increased. Further, the intake unit 121 discharges the clean air downward to create a circulating airflow.

〔The invention's effect〕

In the air purifying apparatus of the present invention, the air is blown from the blower opening of the blower unit so as to face at least both ends of the elongated inlet of the suction unit. Since the dirty air is entrained in the blown air and is sucked into the intake unit, the collection efficiency of the dirty air is improved, and the air cleaning efficiency is improved.

In this case, the wind speed distribution of the air outlet of the air blowing unit is configured such that the wind speed of the portion facing the both ends in the width direction of the air inlet is increased, and the discharge direction of the air outlet is changed to the wind speed at both ends in the width direction. The direction of the fastest airflow intersects in front of the air outlet, so that the airflow is less diffused and the airflow area in the shape of an air curtain has a substantially square shape. For this reason, the collection range of the dirty air is widened, the air cleaning efficiency is further improved, and the intake unit can be downsized. In addition, since the blast air flow area has a substantially square shape, there is an effect that a blind spot that deviates from the blast air flow area is less likely to occur when a plurality of air flow areas are arranged.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention, FIG. 2 is a perspective view of the blower unit with a case removed, FIG. 3 is a sectional view of the blower unit, and FIG. FIG. 5 is a cross-sectional view of the intake unit, FIG. 6 is a perspective view of the blower unit of the second embodiment, FIG. 7 is a perspective view of the blower unit of the third embodiment,
FIG. 8 is a perspective view of the blower unit of the fourth embodiment, FIG. 9 is a partial perspective view of the fifth embodiment, FIG. 10 is a perspective view of the blower unit of the sixth embodiment, and FIG. The enlarged perspective view of the blow port, FIG. 12 and FIG.
FIG. 14 is a perspective view of the seventh embodiment, FIG. 15 is a perspective view of the eighth embodiment, FIG. 16 is an operation explanatory view thereof, FIG. 17 is a perspective view of the blower unit thereof, and FIG. Is a sectional view of the blower unit, FIG. 19 is an enlarged perspective view of the blower port, FIG. 20 is a perspective view of the ninth embodiment, FIG. 21 is a perspective view of the intake unit, and FIG. 23 is a cross-sectional view of the air intake unit, FIG. 23 is a perspective view of the tenth embodiment, FIG. 24 is a perspective view of the air blow unit with the case removed, FIG. 25 is a cross-sectional view of the air blow unit, and FIG. FIG. 27 is a sectional view of the intake unit, and FIG.
FIG. 28 is a drawing of the suction principle of the suction unit, FIG. 29 is a sectional view of the suction unit of the eleventh embodiment, FIG. 30 is a drawing of the suction principle of the suction unit, and FIG. 31 is a blower of the twelfth embodiment. FIG. 32 is a perspective view of the unit, FIG. 32 is an internal configuration diagram of the blower unit,
FIG. 33 is a diagram showing the principle of ion generation of the blower unit, FIG. 34 is a perspective view of an installed state of the thirteenth embodiment, FIG. 35 is an exploded perspective view thereof, and FIGS. It is a top view of each proposal example. 1 ... blow unit, 2 ... intake unit, 3 ... blow port, 5 ... blow air flow area, 7 ... intake port, 21, 31, 41, 51, 6
1,71,91,110,120 …… Blower unit, 82,92,100,121 ……
Intake unit

Claims (1)

(57) [Claims] An air intake unit having an elongated air inlet and air purifying means is provided, and an air blow unit having air blowers opposed to at least both ends in the width direction of the air intake is provided, and a wind speed of the air blower of the air blow unit is provided. The distribution is configured such that the wind speed of the portion facing the both ends in the width direction of the intake port is increased, and the discharge direction of the blow port intersects the fast airflow at the both ends in the width direction in front of the blow port. Air purifier with the direction to do.