JPH03296454A - Air purifying apparatus - Google Patents

Abstract

PURPOSE:To prevent the diffusion of contaminated air by mounting a damper allowing respective air flow ports to selectively communicate with the space on an air suction side and a blowoff part, a sensor detecting the contamination of indoor air and the means controlling the opening and closing of the damper. CONSTITUTION:Revolving type dampers D1-D4 for changing over air paths are arranged to the predetermined part of a master unit 1. Further, sensors 72, 73 detecting the contamination of indoor air are fitted to units 2, 3. Further, a control means 8 controlling the opening and closing of the dampers D1-D4 so as to suck contaminated air from the air flow ports 12, 23, 33 corresponding to sensors 71-73 detecting the contamination of air and to blow off purified air from the production air flow ports 12, 23, 33 other than them is provided. Contaminated air is sucked in this air purifying apparatus through the air flow ports 23, 33 and a suction port 12a and purified to be discharged from a discharge port 12b. By this constitution, contaminated air can be rapidly purified.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an air cleaning device that cleans indoor air using a dust collecting element.

<Conventional technology> Conventionally, indoor air is introduced into the air intake side of the device through an air intake port serving as an air flow path that faces into the room through the ceiling or wall, and the air contained in this introduced air is introduced into the air intake side of the device. After collecting the dust particles with an electrostatic precipitator element,
BACKGROUND ART An air cleaning device is provided that blows the air into a room through a blowout path of the device and an air outlet serving as an air flow path facing into the room.

These types of air purifiers are: ■ Types in which the air outlet and suction ports are integrally provided in the device body, ■ Types in which multiple air suction ports are provided at a location away from the device body, and these are connected through a duct. It is broadly classified into the so-called multi-suction type, which is connected to the main body of the device through a

<Problem to be solved by the invention> All of the above air purifying devices have a configuration that automatically cleans the indoor air by detecting indoor dirt with a sensor installed in the device body. has been done. However, when only one of these is installed in a large room, if there is a source of air pollution such as cigarettes in a location far from the sensor, the contaminated air will not be purified immediately and will be spread throughout the room. There was a problem with putting it away.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an air cleaning device that can quickly clean indoor dirty air without causing it to diffuse.

<Means for Solving the Problems> In order to achieve the above object, the air purifying device of the present invention supplies indoor air to a plurality of air purifiers including at least one air circulation port communicating with the main body of the device via a duct. In an air purifying device, each air is introduced into the space on the air suction side of the device main body through the air circulation opening, and after being purified by the dust collection element, it is blown out indoors or outdoors through the blowout passage of the device main body. A damper that selectively communicates the air flow port with the space on the air intake side and the air outlet, a sensor that is provided for each air flow port and detects indoor air pollution near the air flow port, and a sensor that detects air pollution. A control means is provided for controlling the opening and closing of the damper so that the air circulation port corresponding to the detected sensor communicates with the space on the air suction side, and a predetermined air circulation port other than the air circulation port communicates with the blowout passage. It is characterized by this.

According to the air purifying device with the above configuration, the sensor can:
By individually detecting dirt in the indoor air near each air vent and controlling the opening and closing of the damper using the control means, the air vent corresponding to the sensor that detected air dirt is connected to the air intake side of the device body. It is possible to communicate with the space, thereby allowing dirty indoor air to be introduced into the main body of the device through the air flow port and purified. Further, a predetermined air flow port other than the air flow port that communicates with the space on the air suction side is communicated with the blowout passage, and the purified air is blown indoors or outdoors through the predetermined air flow port. I can put it out.

In this way, the dirty air is guided to the main body of the apparatus through the air flow port close to the air pollution source, so that the dirty air can be quickly cleaned.

<Example> Embodiments will be described in detail below with reference to the accompanying drawings showing examples.

FIG. 1 is a perspective view showing an embodiment of the air cleaning device of the present invention. The above-mentioned air purifying device is a ceiling-embedded type, and includes a parent unit 1 as the main body of the device that introduces and cleans indoor air, and a duct 41 connected to the parent unit 1.
．． Two child units 2 each communicated via 42
．． 3.

The child unit 2.3 includes chamber boxes 2 and 31.
and a decorative panel 22.32 attached to the bottom of this chamber box 21.31, and each decorative panel 22.32 is arranged so as to face the interior of the room.

The decorative panels 22 and 32 have air circulation ports 2 for introducing indoor air into the parent unit 1 and blowing air purified by the parent unit 1 into the room.
3.33 is formed.

Referring also to FIGS. 2 and 3, a decorative panel 11 is provided at the bottom of the parent unit 1 to cover an opening K in the ceiling. 1 or to blow out air purified by the parent unit 1 into the room.
is formed. This air flow port 12 is constituted by an inlet 12a and an outlet 12b that are separated by a predetermined distance. The suction port 12a is provided directly below a first space A1, which will be described later. Further, inside the parent unit 1, a blower fan 5 that introduces indoor air into the parent unit 1 and blows it into the room again, and a pre-filter 61 and an electrostatic precipitator element 6 that purify the introduced air are provided. ing. The electrostatic precipitator element 6 is an electrostatic type that charges dust particles in the air with positive ions and charges a dust collecting electrode plate with negative ions to collect and deposit the dust particles on the dust collecting electrode plate. It is.

Further, on the upstream side of the electrostatic precipitator element 6, there is provided a first space A1 appropriately partitioned by a partition wall 13a, etc., and between this first space A1 and the duct connection port 4a, there is a partition. A second wall partitioned from each other by a wall 13b
A space A2 and a third space A3 are provided. Further, on the air blowing side of the blower fan 5, a blowing passage 14 is provided that guides the air purified through the electrostatic precipitator element 6 to the second space A2 and the blowing outlet 12b.

This blowout passage 14 is constituted by the casing 17 of the parent unit 1, the decorative panel 11, and the partition wall 14L.

One air flow port 23 is communicated with the second space A2 via a duct 41, and the other air flow port 33 is communicated with the third space A3 via a duct 42. In addition, the suction port 12a of the air circulation port 12 has a rectangular guide frame 15.
It is communicated with the introduction space 13 via. Above guide frame 1
5 is provided across the blowout passage 14, and the air sent from the blower fan 5 to the blowout passage 14 is branched to both sides of the guide frame 15, and flows into the first space A1 and the second space A1. can be led to the space A2.

Furthermore, rotary dampers Di, D2. D3 and D4 are appropriately arranged. Among them, the damper D1 is located in the first space A1.
The damper D2 alternately communicates and blocks communication between the first space A2 and the second space A2, and communicates and blocks the second space A2 and the blowout passage 14. Communication and isolation with the third space A3, and! Communication and interruption between the space A3 of s3 and the blowout passage 14 are performed alternately. Further, the damper D3 alternately communicates and blocks the communication between the first space A1 and the suction port 12a. 2 side, the second space A2, and the third space A3 side. In addition, each said Dan X is individually rotated by the motor M provided in each.

Sensors 72 and 73 for detecting indoor air pollution, such as photoelectric smoke detectors, are attached to each of the child units 2.3. This sensor 72.73 faces into the room through the opening of the decorative panel 22.32. Further, the same sensor 71 as described above is also attached near the suction port 12a of the parent unit 1. Note that the air purifying device is automatically operated to clean the dirty air when the front sensors 71, 72, and 73 detect dirt in the indoor air.

The air purifying device has air circulation ports 12, 23, and 3 that correspond to sensors 71, 72, and 73 that detect air pollution.
3, and blow out clean air from other predetermined air circulation ports 12, 23, and 33.
A control means 8 is provided for controlling opening and closing of the dampers D1, D2, D3, and p4. Damper D by this control means 8
1, D2, D3, and D4 can be opened and closed in the following seven ways.

■When all the sensors 71, 72, and 73 detect dirt in the room, as shown in Figure 4, the damper D1 is rotated horizontally to connect the first space A1 and the second space A2. Then, while blocking the second space A2 and the blowout passage 14, the damper D2 is rotated horizontally to communicate the first space A1 and the third space 3, and to connect the first space A1 and the third space 3. The space A3 and the blowout passage 14 are cut off. Further, the damper D3 is rotated vertically to connect the first space A1 and the suction port 12a, and the damper D4 is rotated vertically to connect the air outlet 14 and the air outlet 12b.
communicate with.

As a result, the dirty air in the room is removed from the child units 2 and 3.
air circulation port 23.3B of the main unit 1, and suction port 1 of the main unit 1
The purified air is sucked in through 2a and sent to the parent unit 1.
(See the white arrows in Figure 4, however, the white arrows indicated by broken lines are from the parent unit 1.)
and the air flow related to the child unit 2, and the solid white arrow indicates the air flow related to the child unit 3. Same below).

■When the sensor 72.73 of the child unit 2.3 detects dirt in the room, as shown in Fig. 5, the damper D1 is rotated horizontally to separate the first space A1 and the second space A2. At the same time, the damper D2 is rotated horizontally to communicate the first space A1 and the third space A3, and to block the second space A2 and the blowout passage 14. The space A3 and the outlet passage 14 are cut off. Further, the damper D3 is rotated horizontally to block the first space A1 and the suction port 12a, and the damper D4 is rotated vertically to communicate the blowout path 14 with the blowout port 12b.

As a result, the dirty air in the room is removed from the child units 2 and 3.
The cleaned air is sucked in only through the air flow openings 23, 33 of the main unit 1, and is blown out from the air outlet 12b of the parent unit 1.

■When only the sensor 72 of the child unit 2 detects dirt in the room As shown in FIG. 6, the damper D1 is rotated horizontally to connect the first space A1 and the second space A2. , and while blocking the second space A2 and the blowing passage 14, the damper D2 is rotated vertically to block the first space A1 and the third space A3, and the third space A3 and the blowout passage 14 are communicated with each other. Further, the damper D3 is rotated horizontally to block the first space A1 and the suction port 12a, and the damper D4 is rotated vertically to communicate the blowout path 14 with the blowout port 12b.

As a result, indoor dirty air is sucked in only through the air circulation port 23 of the child unit 2, and purified air is blown out from the air outlet 12b of the parent unit 1.

■If only the sensor 73 of the child unit 3 detects dirt in the room, as shown in Fig. 7, the damper DI is rotated vertically to block the first space A1 and the second space A2. , and communicates the second space A2 with the blowout passage 14, and rotates the damper D2 horizontally to communicate the first space A1 with the third space A3, and communicates with the third space A3. and the blowout passage 14 are cut off. Further, the damper D3 is rotated horizontally to block the first space A1 and the suction port 12a, and the damper D4 is rotated vertically to communicate the blowout path 14 with the blowout port 12b.

As a result, indoor dirty air is sucked in only through the air circulation port 33 of the child unit 3, and purified air is blown out from the air outlet 12b of the parent unit 1.

■When the sensor 71 of the parent unit 1 and the sensor 73 of the child unit 3 detect dirt in the room, as shown in FIG. 8, the damper D1 is rotated vertically and the first space A1
and the second space A2, and the space A2 of 'M42.
At the same time, the damper D2 is rotated horizontally to communicate the first space AI and the third space rjI with the air outlet 14, and the third space A3 and the air outlet 14 are communicated with each other. cut off. Further, the damper D3 is rotated vertically to communicate the first space A1 with the suction port 12a, and the damper D4 is rotated horizontally to block the outlet passage 14 and the outlet 12b. 4 and the second space A2 are communicated with each other.

As a result, indoor dirty air is sucked in through the suction port 12a of the parent unit 1 and the air circulation port 33 of the child unit 3, and purified air is blown out from the air circulation port 23 of the child unit 2. .

■When the sensor 71 of the parent unit 1 and the sensor 72 of the child unit 2 detect dirt in the room, as shown in FIG. 9, the damper D1 is rotated horizontally and the first space A1
and the second space A2, and block the second space A2 and the blowout passage 14, and rotate the damper D2 vertically to connect the first space A1 and the third space A3. The third space A3 and the blowout passage 14 are communicated with each other. Further, the damper D3 is rotated vertically to communicate the first space A] with the suction port 12a, and the damper D4 is rotated horizontally to block the outlet passage 14 and the outlet 12b. In addition, the outlet passage 14 and the third space are communicated with each other.

As a result, indoor dirty air is sucked in through the suction port 12a of the parent unit 1 and the air circulation port 23 of the child unit 2, and purified air is blown out from the air circulation port 33 of the child unit 3. .

■If only the sensor 71 of the parent unit 1 detects dirt in the room, as shown in Figure 1O, rotate the damper D1 vertically to isolate the first space A1 and the second space A2. , and connects the second space A2 and the blowout passage 14, and rotates the damper D2 in a vertical state to block the first space A1 and the third space A3, and to connect the third space A3. and air outlet 14
communicate with.

Also, the damper D3 is rotated vertically to open the first space A1.
At the same time, the damper D4 is rotated horizontally to block the outlet passage 14 and the outlet 12b, and the outlet passage 14 is connected to the second space A2 and the third space A3. communicate.

As a result, indoor dirty air is sucked in through the suction port 12a of the parent unit 1, and purified air is blown out from the air distribution ports 23, 33 of the child units 2, 3.

The following table shows the above controls.

Margin below Note that in the control described in (■) above, the damper D4 may be rotated horizontally, and in this case, the purified air will be blown into the room through the air circulation opening 33 of the coil unit 3. . Furthermore, in the control (2), the damper D4 may also be rotated horizontally, and in this case, purified air will be blown into the room through the air flow opening 23 of the child unit 2. Furthermore, in the control of ■■■, the damper D4 may be rotated to a vertical position, and in this case,
The purified air is blown 8 into the room through the air outlet 12b of the parent unit 1. However, it is preferable to blow out the air from the child unit because there is no possibility that dirty air will be caught in the blown air.

Note that the air purifying device of the present invention is not limited to the above-mentioned embodiments, and for example, the air purifying device of the present invention is
Various design changes were made, such as sucking air only from the child unit 2.3 without installing a can be administered.

<Effects of the Invention> As described above, according to the air purifying device of the present invention, dirty air is guided to the main body of the device through the air circulation port close to the air pollution source, so the dirty air can be quickly purified. In turn, the patented effect of preventing dirty air from being diffused into the room is achieved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the air cleaning device of the present invention, FIG. 2 is a sectional view seen from a plane, and FIG. 3 is a sectional view seen from a side. FIGS. 4 to 10 are cross-sectional views showing each control mode of the damper. 6... Electrostatic precipitator element,

Claims (1)

[Claims] 1. At least one air circulation port (1) communicating indoor air to the device main body (1) via ducts (41, 42).
a plurality of air flow openings (12, 23, 3) including
3) through the space (A) on the air suction side of the device body (1).
1), and the introduced air is passed through the dust collection element (
6), the air outlet passage (1) of the device body (1) is cleaned.
In the air purifying device that blows out indoors or outdoors through a damper (D1) that selectively communicates each air circulation port (12, 23, 33) with the air suction side space (A1) and the blowout passage (14), , D2, D3, D4), and sensors (71, 72) provided for each air outlet (12, 23, 33) to detect indoor air pollution near the air outlet (12, 23, 33). , 73) and the air flow openings (12, 23, 33) corresponding to the sensors (71, 72, 73) that detected air pollution are connected to the air suction side space (A1
), and a predetermined air circulation opening (12, 23, 33) other than the air circulation opening (12, 23, 33) is connected to the blowout passage (
dampers (D1, D2, D3,
D4) A control means (8) for controlling the opening and closing of the air cleaning device.