JPH02302539A - Air cleaner - Google Patents

Abstract

PURPOSE:To conduct excellent heat exchange between indoor air to be discharged and air to be taken onto the indoor side by a construction wherein a heat exchanger having first and second air passages intersecting each other perpendicularly is disposed inside a casing and the first air passage is made to communicate with an air intake port for ventilation and the second air passage with a suction port by a damper mechanism. CONSTITUTION:For a ventilating operation, dampers 61 and 62 are shaken horizontally to open air passages 41 and 42 of a heat exchanger 4. Thereby an intake port 13 for ventilation is made to communicate with a blowoff port 12 and a suction port 11 with a discharge port 14 for ventilation, and each of tans 3 and 5 is driven. In the air passages 41 and 42 of the heat exchanger 4, indoor air and outdoor air are made to pass therethrough crosswise respectively, so that heat exchange be executed. For an operation both for aircleaning and ventilation, the damper 62 is turned to be vertical to cut off the suction port 11 from the air passage 42 of the heat exchanger 4, while the damper 61 is shaken to open both the suction port 11 and the air passage 41, and the suction port 11 and the intake port 13 are made to communicate with the blowoff port 12.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is an air purifier, specifically, an electric dust collector and a fan are installed inside a casing equipped with an indoor air intake port and an indoor air outlet. , the indoor air taken in from the suction port is
5. The present invention relates to an air cleaner that purifies the air and blows it out indoors from the outlet.

(Prior art) Conventionally, this type of air purifier has been developed, for example, in
As described in Publication No. 33 and shown in Figure 6,
Indoor air suction ports (a) are installed on the upper and lower walls of the casing (C).
) and an air outlet (b) into the room, and these air inlets (a
) and the air outlet (b), an electrostatic precipitator (S) and a fan (F) are installed in the caning (C), and an exhaust A damper (D
P) and an on-off valve (V) to open and close each valve separately.

In this way, when operating in the air purification mode when the indoor air is contaminated, each of the ducts (DI) (
DP) is closed by the damper (DP) and the on-off valve (V), the fan (F) and the dust collector (S)
The indoor air sucked in from the suction port (a) is cleaned by the electrostatic precipitator (S), and the indoor air is cleaned by the electric precipitator (S).
b), and when operating in the ventilation mode when the indoor air is too polluted, the damper (DP) is switched. to open the exhaust duct (Dl),
And, the indoor air from the suction port (a) is discharged to the exhaust duct (Di), while the on-off valve (Di)
V) with the air supply duct) (DP) in an open state,
The room is ventilated by taking outdoor air into the room through this air supply duct (DP).

(Problem to be Solved by the Invention) However, in the above air purifier, the above-mentioned exhaust and air supply ducts)
(Di) and (DP) are simply arranged in a double-tube shape, so especially when operating in the ventilation mode, the indoor air discharged to the outside from the exhaust duct (DI) and the air supply duct ) The exchange efficiency with the outdoor air taken into the indoor side from CD2) is poor, that is, the conditioned indoor air is υF discharged to the outdoor side, and the outdoor air is directly taken into the indoor side. , there was a problem that it was uneconomical.

The present invention was made in view of the above-mentioned problems, and its purpose is to reduce the difference between the indoor air discharged to the outside of the room and the outdoor air taken into the room when operating in the ventilation mode. It is an object of the present invention to provide an air cleaner that can perform good heat exchange between air cleaners, improve heat exchange efficiency, and operate economically.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an electrical outlet in a casing (1) having an indoor air inlet (11) and an indoor air outlet (12). The air purifier is equipped with a dust collector (2) and a fan (3), and is configured to purify the indoor air taken in from the suction port (11) and blow it into the room from the blowout port (12), (1) is provided with a ventilation air intake (13) and an exhaust air outlet (14), and these intakes (13) and tJF outlet (14) are provided.
) is provided with a heat exchanger (4) having a first air passage (41) and a second air passage (42) orthogonal to each other; An air supply chamber (15) is formed on the inlet side of the first air passage (41), and an exhaust chamber (16) is formed on the outlet side of the second air passage (42), and this υ1 air chamber (16) An exhaust fan (5) is installed inside, and the first air passage (41) is connected to the outlet ( 12), and a damper mechanism (6) that opens and closes the second air passage (42) with respect to the suction port (11).

In addition, the above air purifiers also have an indoor pollution sensor (8
) and a contamination gas sensor (9), and the operation of the contamination sensor (8) causes the dust collector (2) and the fan (3) to
and the damper mechanism (6) to operate the first and second air passages (41) (of the heat exchanger 75 (4)).
42), and connect the suction port (11) to the dust collector (2).
The fan (3) and the exhaust fan (5) are driven by the air purifying operation mode and the operation of the polluted gas sensor (9), and the damper mechanism (6) is operated so that each of the air passages ( 41) Open (42) and open the suction port (1
1) to the second air passage (42), and the air outlet (12)
a ventilation operation mode in which the air is communicated with the first air passageway (41), and...the pollution sensor (8) and the pollution gas sensor (9).
), the dust collector (2) and the fan (3) are driven, the damper mechanism (6) is operated, the second air passage (42) is closed, and the first air passage (41) is opened. The air outlet (12) is connected to the inlet (11) and the first air passage (41).
) may be provided with an operation mode switching device for switching to a combined operation mode of air lh purification and ventilation.

Furthermore, an outdoor contamination sensor (10) is installed in the air supply chamber (15).
), and on the other hand, the operation mode switching device may be provided with a dust collector start/stop means for driving the electrostatic precipitator (2) by the operation of the pollution sensor (10) in the ventilation operation mode.

(Function) In the above air cleaner, two first and second air passages (41) which are orthogonal to each other are provided inside the caning (1).
A heat exchanger (4) having a heat exchanger (42) is disposed, and a switching operation of the damper mechanism (6) causes the first air passage (
41) is communicated with the ventilation air intake (13), and the second air passage (42) is communicated with the suction port (11), so when ventilating room air, the suction The indoor air discharged to the outdoor side from the port (11) and the outdoor air taken into the indoor side from the intake port (13) are connected to each air passage (41) of the heat exchanger (4), respectively.
(42) in a perpendicular manner, and during this passage, good heat exchange is performed between the indoor air and outdoor air, resulting in economical operation.

In addition, the indoor pollution sensor (8) is added to the above air purifier.
and a pollutant gas sensor (9), and the electrostatic precipitator (2) and the fan (3) are operated by the action of the pollutant sensor (8).
) and operate the damper mechanism (6) to open the first and second air passages (41) (4) of the heat exchanger (4).
2) is closed and the suction port (11) is connected to the dust collector (2), and the polluted gas sensor (9) is operated. ), the damper machine +:i (6) is operated to open each of the air passages (41) and (42), and the suction port (11) is connected to the second air passage (42), and the air outlet is connected to the second air passage (42). (12) to the first air passage (41) and the operation of the pollution sensor (8) and the pollution gas sensor (9),
3) to operate the dash bar mechanism (6),
Combination of air purification and ventilation in which the second air passage (42) is closed, the first air passage (41) is opened, and the outlet (12) is communicated with the suction port (11) and the first air passage (41). When the vehicle is equipped with an operation mode switching device that switches between different operation modes, it is possible to perform optimal operation in various operation modes depending on the indoor air condition.

Furthermore, an outdoor contamination sensor (10) is installed in the air supply chamber (I5).
), and on the other hand, when the operation mode switching device is provided with a means for starting and stopping the electrostatic precipitator (2) for driving the electrostatic precipitator (2) by the operation of the pollution sensor (10) in the ventilation operation mode, the operation mode switching device During operation, depending on the contamination state of the outdoor air taken into the room, the outdoor air can be purified by the dust collector (2) and taken into the room.

(Example) The air cleaner shown in Figs. 1 to 3 has a casing (1
) are formed in the upper and lower walls of the indoor air inlet (11) and the outlet (11) for indoor air, respectively, and between these (11) and (12), the inside of the casing (1) is formed. To,
Electrostatic precipitator (2) equipped with multiple electrodes and circulation fan/
(3).

Therefore, in the above air purifier, a ventilation air intake port (13) and an exhaust air υF outlet (14) which are opened to the outdoor side are formed on the upper back wall side of the casing (1). These intake ports (13) and discharge ports (14)
A heat exchanger (4) for exchanging heat between indoor air and outdoor air during operation in the ventilation mode is disposed inside the casing (1) near the casing (1).

As shown in Figure 4, this heat exchanger (4) is
A plurality of flat plate-like members (4a) carrying lithium chloride, glue gel, etc., and a plurality of corrugate members bent into a bellows shape using the same material as the plate-like members (4a) ( 4b), and each full gate member (
4b) are interposed between each of the plate-like members (4a) in a sandwich-like manner so that the rhyme directions thereof are alternately different, and each of the full-gate members (4b) and each of the plate-like members (4a), a plurality of first air passages (41) and second air passages (42) extending perpendicularly to each other are formed independently.

Then, the heat exchanger (4) having the following configuration was installed at 111
■The casing (1) is arranged in an inclined manner in the middle part in the front and rear direction, and the upper and lower 2 Two partition walls (1a) (lb) are provided, each partition wall (la) (lb
) respectively connect the intake port (13) and the exhaust port (14).
), an air supply chamber (15) and an exhaust chamber (16) are defined, and the heat exchanger (4) is connected to the air supply chamber (15).
The inlet side of the first air passage (41) in the heat exchanger (4) faces the exhaust chamber (16), and the exhaust chamber (16) faces the outlet side of the second air passage (42) in the heat exchanger (4). (16) is provided with an exhaust fan (5).

In addition, a heat exchanger (
4), the first air passage (4) is installed on the 111■ side.
A damper device $74 (6) is installed that can open and close the outlet side of 1) and the inlet side of the second air passage (42).

The damper mechanism (6) consists of two first and second dampers (E31) (62), and each of these dampers (6
1) (62) are swingably supported on the 111i side corners of the heat exchanger (4), and the heat exchanger (4) The first air passage (41) is opened and closed with respect to the air outlet] (12), and the second air passage (42) is 1) DtJ interleaved with respect to the suction (11) after 1J. Do it like this. Each of the dampers (61) and (62) is driven to swing through a link mechanism using a motor or a solenoid as a driving source.

Further, a remote control box (7) is attached to the lower side of the wall (B) to which the casing (1) is fixed, and the remote control box (7) controls the electrostatic precipitator (2) and each fan (3). (5) can be operated manually.

Next, the operation of the air cleaner configured as above will be explained.

First, when operating in the air jW purification mode in a case where the indoor air is 2 watts, as shown in Figure 1,
The first and second dampers (61) and (62) constituting the damper mechanism (6) are respectively swung vertically, and the outlet of each air passage (41) and (42) of the heat exchanger (4) is and the entrance side are respectively closed, and the said casing (
The fan (3) and the electrostatic precipitator (2) are driven while the suction port (11) of 1) is communicated with the blowout port (12). As expected, the indoor air sucked through the suction port (11) is purified by the dust collector (2) and sent to the air outlet (1).
2) is blown into the room.

In addition, when the indoor air is too polluted, to operate in the ventilation mode, each of the dampers (61) and (82) is swung horizontally as shown in The first and second air passages (41) of the heat exchanger (4)
) (42) are opened, and this first air passage (41
); the ventilation intake (13) is communicated with the air outlet (12) of the casing (1);
The inlet (11) is communicated with the ventilation outlet (14) via the air passage (42), and in this state flii
In this way, the indoor air flows from the suction port (11) to the second air passage (42) as shown by the solid arrow in the figure. The outdoor air is discharged through the intake port (14) as shown by the dotted arrow in the same figure.
3) through the first air passage (41) to the air outlet (12).
), that is, the heat exchanger (4
In each of the air passages (41) and (42) of ), the indoor air and outdoor air are passed orthogonally, respectively, and during such passage, good heat exchange is performed between the indoor air and outdoor air. .

Furthermore, when operating in the combined operation mode of air purification and ventilation, the damper mechanism (6
) by vertically swinging the second damper (62) of the suction port (11) and the second air passage (62) of the heat exchanger (4).
42), and the first damper (6
1), the suction port (11) and the heat exchange i! 3 (4
) are swung so as to open both the first air passage (41), and the suction port (11) and the intake port (13) are respectively communicated with the blowout port (12). The fan (3) and the electric precipitator (2) are driven, and by doing so, the indoor air from the suction port (11) is directed to the intake port as shown by the solid line arrow in the same figure. The outdoor air from the inlet (13) is blown out into the room from the outlet (12) as indicated by the dotted arrow in the figure.

In addition, in the above air purifier, as shown in each figure, the suction port (11) is located inside the upper part of the casing (1).
An optical indoor light sensor (8) for detecting indoor air pollution, such as cigarette smoke, is installed near the indoor air sensor (8). An infrared pollutant gas sensor (9) is installed to detect pollutant gases such as Co, NO, SO2, etc.
Note i: Automatically drive the U air dust collector (2) and fans (3) and (5), and automatically open and close each damper (6, 1) (62) of the damper mechanism (6). An operation mode switching device may also be provided.

As described above, when providing the operation mode switching device having the pollution sensor (8) and the pollution gas sensor (9),
It is now possible to automatically and selectively perform the aforementioned air purification operation mode, ventilation operation mode, and combination operation mode of air purification and ventilation, so that the above-mentioned various Optimal driving is possible through the driving mode.

Furthermore, an optical outdoor contamination sensor (10) for detecting the contamination state of outdoor air is disposed in the air supply chamber (15) defined in the upper part of the casing (1). It is also possible to provide the mode switching device with a dust collector start/stop means for driving the dust collector (2) based on the detection result of the pollution sensor (10) in the ventilation operation mode. During operation in the ventilation mode, the outdoor air can be purified by the dust collector (2) and introduced into the room depending on the contamination state of the outdoor air.

In the above embodiment, the blowing fan (3) and the exhaust fan (5) are connected to the air outlet (
12) and in the exhaust chamber (16), each of the above-mentioned fans (3) and (5)
As shown in the figure, they may be arranged on the same axis inside the casing (1) and driven by one drive shaft motor (M). The air supply chamber (1a) is defined by a partition wall (1a) on the upper side.
5), and the exhaust chamber (16) defined by another partition wall (1b) is formed on the lower side of the air supply chamber (15), and the lower part of the exhaust chamber (15) is The exhaust fan (5) is disposed coaxially with the ventilation fan (3) on the side,
Each of the fans (3) and (5) may be rotationally driven by the drive motor (M) provided at an intermediate portion of each of the fans (3) and (5).

In the embodiments shown in each figure, a pre-filter (2A) and a deodorizing filter (2) are installed above and below the electrostatic precipitator (2).
B).

(Effects of the Invention) As explained above, the air cleaner of the present invention has a suction port (
11) and a casing (1) having an air outlet (12),
Ventilation air intake (13) and exhaust air outlet (14)
A heat exchanger (4) is provided with a first air passage (41) and a second air passage (42) orthogonal to each other on the inner side of the intake port (13) and the discharge port (14). ), and an air supply chamber (15) is provided on the inlet side of the first air passage (41) and on the outlet side of the second air passage (42) by partition walls (la) and (lb). Each exhaust chamber (16) is divided into sections, and each exhaust chamber (16) is equipped with an exhaust fan (5), while the outlet side of the first air passage (41) and the entrance of the second air passage (42) On the side, the first air passage (
41) to the air outlet (12), and the second air passageway (42) to the suction port (11), the damper mechanism (6) When indoor air is ventilated by the switching operation, the outdoor air flowing through the first air passage (41) of the heat exchanger (4) and the indoor air flowing through the second air passage (42) This enabled good heat exchange between the two, making it possible to operate economically.

In addition, the indoor pollution sensor (,8
) and a pollutant gas sensor (9) are respectively provided, and the operation of the pollution sensor (8) drives the electrostatic precipitator i (2) and the fan (3), and the damper mechanism (6)
each air passageway (41) of the heat exchanger (4) by operating the
(42), and the suction port (11) is connected to the dust collector (2).
), the fan (3) and the exhaust fan (5) are driven by the operation of the polluted gas sensor (9), and the damper mechanism (6) is operated to 41) and (42) respectively, and the suction port (11) is connected to the second air passage (42), and
The dust collector (2
) and the fan (3), and the damper mechanism (6)
is operated to close the second air passage (42), open the first air passage (41), and connect the air outlet (12) to the suction opening (
11) and the first air passageway (41), depending on the indoor air condition,
This allows for optimal operation through various operation modes.

Furthermore, an outdoor contamination sensor (10) is installed in the air supply chamber (15).
), and when the operation mode switching device is provided with a dust collector start/stop means for driving the electrostatic precipitator (2) by the operation of the pollution sensor (10) in the ventilation operation mode, During operation, depending on the level of contamination of the outdoor air taken into the room, the outdoor air can be purified by the dust collector (2) and then taken into the room.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing the overall structure of the air purifier according to the present invention, and shows an operating condition 9 in the air purifying operation mode, and FIGS. 2 and 3 are views of the air purifier. It is a sectional view of only the main parts, and Figure 2 shows the ventilation operation mode, and
Figure 3 shows the operating conditions in the combined operation mode of air purification and ventilation, Figure 4 is a slope view of the heat exchanger used in the air cleaner, and Figure 5 shows another embodiment. A vertical cross-sectional view, FIG. 6 is a cross-sectional view showing a conventional example. (1) 1.1 casing (11)... Suction port (12) Gas outlet (13) Φ... Air intake for ventilation (14)... Air outlet for ventilation ( 15)...φ・Air supply chamber (16)・@Fist exhaust chamber (1a)・・・Partition wall (lb)---・・Partition wall (2)・・・eElectric precipitator (3)・... Fan (4) ... Life fist, heat exchanger (41), first air passage (42), fist e, second air passage (5), Φ, force, exhaust fan (6), --- Damper mechanism (8) --- Indoor pollution sensor (9) --- 1 Contaminant gas sensor (10) --- AS Outdoor pollution sensor Figure 2 Figure 3

Claims (1)

[Claims] 1) Indoor air intake port (11) and indoor air outlet (12)
) and an electrostatic precipitator (2) inside the casing (1).
and a fan (3), the air cleaner is configured to purify the indoor air sucked in from the suction port (11) and blow it out indoors from the blowout port (12), wherein the casing (1) includes: , a ventilation air intake (13) and an exhaust air outlet (14) are provided, and a first air passage (41
) and a second air passage (42), and an air supply chamber is provided on the entrance side of the first air passage (41) by partition walls (1a) (1b). (15), an exhaust chamber (16) is formed on the exit side of the second air passage (42), and an exhaust fan (5) is installed in the exhaust chamber (16), while the first air The first air passage (41) is opened and closed with respect to the outlet (12) on the outlet side of the passage (41) and the inlet side of the second air passage (42), and the second air passage ( 42) into the suction port (11)
) An air purifier characterized by being provided with a damper mechanism (6) that opens and closes the air purifier. 2) Indoor pollution sensor (8) and pollution gas sensor (9)
), the electrostatic precipitator (2) and the fan (3) are driven by the operation of the pollution sensor (8), and the damper mechanism (6) is operated to open the first and second air passages (41) (4).
2) is closed and the suction port (11) is communicated with the dust collector (2); and the polluted gas sensor (2) is closed.
9) drives the fan (3) and exhaust fan (5), operates the damper mechanism (6), and operates the first and second exhaust fans.
a ventilation operation mode in which the air passages (41) and (42) are opened and the inlet (11) is communicated with the second air passage (42) and the outlet (12) is communicated with the first air passage (41); The operation of the pollution sensor (8) and the pollution gas sensor (9) drives the dust collector (2) and the fan (3), operates the damper mechanism (6), and opens the second air passage (42).
Close the first air passage (41) and open the air outlet (12).
2. The air cleaner according to claim 1, further comprising an operation mode switching device for switching the air cleaner to a combined operation mode of air purification and ventilation in which the air cleaner communicates with the suction port (11) and the first air passage (41). 3) The air supply chamber (15) is equipped with an outdoor pollution sensor (8a), and the operation mode switching device includes an electrostatic precipitator (
3. The air cleaner according to claim 2, further comprising dust collector start/stop means for driving the dust collector.