JPH0498024A - Air conditioning device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner having an air cleaner for purifying air.

[Conventional technology]

Generally, indoor spaces such as buildings are equipped with air conditioners to make the living environment comfortable.

Examples of such conventional air conditioners include JP-A-58-217131 and JP-A-58-12.
One disclosed in Japanese Patent No. 9430 and the like is known.

FIG. 14 shows such an air conditioner, and in the figure, reference numeral 11 indicates an air conditioned space.

This air-conditioned space 11 has two air outlets 1 that blow out air.
3 and an intake port 15 for sucking air are provided, and these outlet ports 13 and suction ports 15 are connected to an air conditioner 21 via a supply duct) 17 and a ventilation duct) 19, respectively.

The air conditioner 21 includes a blower 23 that pumps air, an air cleaner 25 that removes dust from the air, and a heat exchanger 27 such as a cooling coil. A deodorizing filter made of, for example, an activated carbon filter is disposed in the air cleaner 25 in order to remove odors such as cigarette smoke and body odor.

Further, the ventilation duct 19 is connected to an exhaust duct 31 in which an exhaust fan 29 is arranged and an outside air duct 33 that introduces outside air. In the ventilation duct 19 and the outside air duct 33 between the exhaust duct 31 and the outside air duct 33, a first damper 35. Second dampers 37 are respectively arranged. Exhaust fan 29° first damper 35. Second dampers 37 are respectively arranged. Exhaust fan 29. The first damper 35 and the second damper 37 are controlled by a control device into which a signal from a CO2 sensor placed in the air-conditioned space 11 is input, for example.

In the air conditioner configured as described above, air is supplied to the air cleaner 25 by the blower 23. Air that is blown into the air conditioned space 11 from the air outlet 13 through the supply duct 17 and circulated in the air conditioned space 11 is sucked through the suction port 15 and introduced into the air conditioner 21 through the ventilation duct 19.

On the other hand, when the CO2 concentration in the air-conditioned space 11 becomes high, the exhaust fan 29 is driven by the control device into which the signal from the CO-sensor is input, and the first damper 35
is closed, the second damper 37 is opened, outside air is introduced into the air-conditioned space 11 through the outside air duct 33, the air in the air-conditioned space 11 is exhausted to the outside through the ventilation duct 19 and the exhaust duct 31, and the air-conditioned space 11 is ventilated. Ru.

In the air conditioner configured as described above, the air cleaner 25
The deodorizing filter 28 can remove cigarette odor, body odor, and the like.

[Problem to be solved by the invention]

However, in such conventional air conditioners, the air in the air conditioned space 11 is normally operated in a stationary manner, circulating between the air conditioner 21 and the air conditioned space 11, and the ventilation of the air conditioned space 11 is stopped when the COz concentration becomes high. For example, if a person with strong body odor enters the room or if the number of people smoking cigarettes suddenly increases, the air-conditioned space 11 can be ventilated quickly in response to the odor. First, there is a problem in that air contamination in the air-conditioned space 11 spreads due to air circulation.

In particular, the air conditioner 21 is installed in an air conditioned space 11 consisting of many rooms.
In most cases, the air-conditioned space 11 consisting of one room is air-conditioned at the same time, so if the air in the air-conditioned space 11 consisting of one room becomes contaminated,
There was a problem of air pollution spreading throughout the area.

The present invention has been made in order to solve the above-mentioned problems, and provides an air conditioner that can effectively prevent air pollution in the entire air-conditioned space by introducing purified air into the air conditioner. The purpose is to

[Means for Solving the Problem] The air conditioner according to claim 1 includes an air conditioner that introduces conditioned air into an air conditioned space, circulates the air conditioned air, and introduces the circulated conditioned air from the air conditioned space. and an air cleaner that suctions and purifies the air in the air-conditioned space and discharges the purified air into the air-conditioned space.

The air conditioner according to claim 2 includes an air conditioner that introduces conditioned air into an air conditioned space, circulates the air in the air conditioned space, and introduces the circulated conditioned air from the air conditioned space, and sucks air in the air conditioned space. and an air cleaner that purifies the air and introduces the purified air into the air conditioner.

The air conditioner according to claim 3 is the air conditioner according to claim 1 or 2, wherein a sensor for sensing the degree of contamination in the air conditioned space is disposed in the air conditioned space, and a signal from the sensor is used to detect the degree of contamination in the air conditioned space. The controller activates the air purifier when the level of contamination within the air reaches a certain level.

[For production]

The air conditioner according to claim 1 includes: an air conditioner that introduces conditioned air into the conditioned space, circulates the conditioned air, and introduces the circulated conditioned air from the conditioned space; and an air conditioner that sucks and cleans the air in the conditioned space. Since the configuration includes an air purifier that discharges this clean air into the air-conditioned space, the air in the air-conditioned space is sucked and purified by the air purifier, and this clean air is discharged into the air-conditioned space. Clean air is sucked in by the air conditioner to condition the air conditioned space.

The air conditioner according to claim 2 includes: an air conditioner that introduces conditioned air into the conditioned space, circulates the conditioned air, and introduces the circulated conditioned air from the conditioned space; and an air conditioner that sucks and purifies the air in the conditioned space. Since the configuration includes an air purifier that discharges this clean air to the air conditioner, the air in the air conditioned space is sucked and purified by the air purifier, and this clean air is directly introduced into the air conditioner. The air-conditioned space is air-conditioned by this.

The air conditioner according to claim 3 is the air conditioner according to claim 1 or 2, in which a sensor for sensing the degree of contamination in the air conditioned space is disposed in the air conditioned space, and a signal from the sensor is used to detect the degree of contamination in the air conditioned space. When the degree of contamination exceeds a certain level, the control device activates the air purifier, and the signal from the sensor that detects the degree of contamination in the air-conditioned space indicates that the degree of contamination in the air-conditioned space has exceeded a certain level. In this case, the air cleaner is activated by the control device to purify the air within the conditioned space.

[Example] Hereinafter, the details of the present invention will be explained with reference to the drawings.

FIG. 1 shows a first embodiment of an air conditioner according to the present invention, and in the figure, reference numeral 41 indicates floor slabs formed at predetermined intervals in the vertical direction of a building.

Ceiling plates 43 are arranged below the floor slab 41 at predetermined intervals, and a space is formed below the ceiling plate 43, and this space is an air-conditioned space 45.

An air conditioner 47 that introduces conditioned air into the air-conditioned space 45 and circulates it through the air-conditioned space 45, and that draws out the circulated conditioned air from the air-conditioned space 45 is disposed on the side of the air-conditioned space 45.

That is, the air conditioner 47 is connected to an air outlet 49 that opens toward the air-conditioned space 45 and a duct 53,55 that is connected to the suction port 51, and the conditioned air blown out from the air outlet 49 is
The air circulates through the air-conditioned space 45 and is sucked through the suction port 51, and is introduced into the air conditioner 47.

An air cleaner 57 is arranged on the ceiling plate 43 to suck and purify the air in the air-conditioned space 45 and to discharge the purified air into the air-conditioned space 45.

This air purifier! As shown in FIGS. 2 and 3, 57 is a centrifugal blower 59 made of a sirocco fan, for example.
and a purifier main body 63 in which the filter 61 is housed, a blow-off duct 67 that connects the purifier main body 63 and the clean air blower 8065, and a suction duct 71 that connects the purifier main body 63 and the air suction port 69. It is configured.

The centrifugal blower 59 has a suction lower 3 that sucks the air.
The filter 61 is disposed facing the opposite side to the connection position of the suction duct 71, and the filter 61 is disposed in the air circulation passage of the purifier main body 63.
is located.

As shown in FIGS. 4 and 5, this filter 61 is composed of a pre-filter 75, a main filter 77, and a deodorizing filter 79, and the pre-filter 75... Main filter 77, deodorizing filter 7
9 are sequentially stacked and removably fixed to each other.

The pre-filter 75 uses fibers mixed with an antibacterial agent as a filtering material. For example, the filtering material is antibacterial ester cotton made by kneading and spinning fine particulate inorganic antibacterial agent into polyester. The prefilter 75 is supported by a rectangular frame 80 to form a unit 1
It is possible to regenerate without impairing antibacterial properties by sucking and removing adhering dust with a vacuum cleaner or washing with tap water every 2 months.

The main filter 77 is a charged filter made of a charged filter material, and is also supported by the rectangular frame 81 and formed into a unit. This charged filter cannot be regenerated, and if its performance deteriorates due to dust adhesion, it must be replaced with a new one, and its lifespan is usually about 6 months to 1 year, depending on the frequency of operation. .

The deodorizing filter 79 uses activated carbon fibers that can be regenerated by heating as a filter medium, and maintains a pleated shape by mechanically bonding a heat-resistant net to a fibrous activated carbon mat. This activated carbon filter can be regenerated by heating with hot air, and can be reused several times by heating and regenerating normally every 3 to 9 months.

As shown in FIG. 5, the filter 61 has support fittings 83 protruding from three sides of a rectangular frame 82 that supports the thickest deodorizing filter 79, and a pre-filter member is inserted from one side without the support fittings 83. 75 and the main filter member 77, the pre-filter member 75. A main filter member 77° and a deodorizing filter member 79 are removably fixed to each other.

Further, as shown in FIG. 2, a sound absorbing device 84 for absorbing sound generated from the centrifugal blower 59 is arranged in the blow-off duct 67. This sound absorbing device 84 is constructed by forming a wall forming a circulation path for clean air with a sound absorbing member, and this sound absorbing member is made of an inner steel plate in which a large number of holes 87 are formed, as shown in FIG. A sound absorbing material 90 such as glass wool is interposed between the outer steel plate 88 and a normal outer steel plate 89. Furthermore, as shown in FIG.
In order to effectively absorb sound, a sound-absorbing biased flow section 90 is formed by the above-mentioned sound-absorbing member in the center of the clean air circulation path.

Furthermore, as shown in FIG. 2, the cleaner main body 63 is formed of the above-mentioned sound absorbing member,
A protrusion 91 made of a sound absorbing member that protrudes toward the suction lower 3 is formed on the cleaner main body 63 facing the suction lower 3, and the sound generated by the centrifugal blower 59 is effectively absorbed.

Furthermore, as shown in FIG. 1, sensors 93.95.97 are arranged on the ceiling plate 43 to detect the degree of contamination within the air-conditioned space 45. It is connected to a control device 99 that operates the air cleaner 57 when the degree of contamination in the air cleaner 45 exceeds a certain level.

That is, the ceiling panel 43 is equipped with a human body sensor 93 that uses, for example, infrared rays to determine whether or not there is a person in the air-conditioned space 45.
．． A flame sensor 95 that detects cigarette burning and an odor sensor 97 that detects cigarette odor and building material odor are arranged.

In the air conditioner configured as described above, as shown in FIG. 7, first, the human body sensor 93 determines whether or not there is a person in the air conditioned space 45. When there is a person in the air-conditioned space 45, the control device 99 operates the air cleaner 57 at low power. Here, operating the air purifier 57 on low mode means
This means operation in a state where the rotational force of the centrifugal blower 59 in the air cleaner 57 is low.

When the air cleaner 57 is operated, the centrifugal blower 59 rotates, and air is forcibly introduced through the air suction port 69 and into the cleaner body 63 via the suction duct 71. Here, since the air passes through the filter 61, it is filtered and purified. The purified air enters the centrifugal blower 59 from the air suction lower 3 of the centrifugal blower 59 on the opposite side to the suction duct 71, and is discharged into the air-conditioned space 45 via the blow-off duct 67 and the blow-off port 65.

Then, if the flame sensor 95 has reacted or the odor sensor 97 has exceeded the reference value, and a certain period of time has passed after the air purifier 57 was stopped, the control device 99 causes the air purifier 57 to is operated at high power, and the operation is stopped after a predetermined period of time has elapsed.

In this case, the flame sensor 95 was chosen to operate at high power.
．． This is because there is a high possibility that the odor sensor 97 will cause the air in the air-conditioned space 45 to become contaminated.

Here, operating the air purifier 57 on high means that the air purifier 57 is operated at high power.
This means operation in a state where the rotational force of the centrifugal blower 59 in 7 is high.

In addition, in order for the air purifier 57 to be operated, a certain period of time must have elapsed after the air purifier 57 was stopped.
Furthermore, the reason why the air purifier 57 is configured to stop after a predetermined period of time has elapsed is because the flame sensor 95 and odor sensor 97 are delicate and may malfunction.
This is to prevent continued operation.

This air purifier 57 can also be operated manually, and in the case of manual operation, simply press a switch installed on the wall, etc.
The air cleaner 57 can be operated and stopped.

Therefore, in the air conditioner configured as described above, the air conditioner 47 introduces conditioned air into the air conditioned space 45 and circulates the air conditioned air in the air conditioned space 45, and the air conditioner 47 introduces the circulated conditioned air from the air conditioned space 45. an air cleaner 57 that suctions and cleans the air inside, and discharges this clean air into the air-conditioned space 45; a sensor 93,95,97 that detects the degree of contamination in the air-conditioned space 45; and these sensors 93,95. The sensor 93 detects the degree of contamination in the air-conditioned space 45. When the degree of contamination in the air-conditioned space 45 exceeds a certain level based on the signal from 95.97, the air cleaner 57 is activated by the control device 99, and the air-conditioned space 4
The air in the air conditioner 5 is sucked and purified, and this clean air is discharged into the air conditioned space 45.
7, the air conditioned space 45 is air-conditioned, and the purified air is introduced into the air conditioner 47 to effectively prevent air contamination in the entire air conditioned space 45.

That is, when the inside of the air-conditioned space 45 becomes contaminated, the air cleaner 57 is activated and clean air is discharged into the air-conditioned space 45, and this clean air is sucked into the air conditioner 47 through the air suction port 69, so that, for example, body odor is removed. Even if a person with strong cigarette smoke enters the room or the number of people who smoke cigarettes suddenly increases, the air conditioned space 45
can be quickly cleaned in response to the occurrence of odors.

Therefore, even when the air conditioner 47 simultaneously air-conditions the air-conditioned space 45 consisting of many rooms, air pollution generated in one room is introduced into the air conditioner 47 with a lower degree of contamination. The air conditioner 47 circulates conditioned air to a large number of rooms. Therefore, it is possible to effectively prevent static electricity pollution from spreading throughout many rooms.

In addition, sensors 93, 95.97 are arranged in the air-conditioned space 45 to detect the degree of contamination in the air-conditioned space 45, and signals from these sensors 93, 95, 97 are used to detect the air-conditioned space 45.
Since the air cleaner 57 is activated by the control device 99 when the degree of contamination inside the air conditioned space 45 exceeds a certain level, for example, when there is no person inside the air conditioned space 45 or when the air in the air conditioned space 45 is clean, In this case, the air cleaner 57 does not operate, and the air cleaner 57 can be used economically.

FIG. 8 shows a second embodiment of the air conditioner of the present invention. In this embodiment, a suction duct 105 of an air conditioner 104 is provided between the floor slab 101 and the ceiling plate 103. still,
The same parts as in the first embodiment are given the same numbers and the explanation will be omitted.

A blow-off duct lo9 of an air cleaner 107 arranged on the ceiling plate 103 is opened in the duct 105.

That is, the air cleaner 107 has a suction duct 1 connected to the suction port 111 of the ceiling plate 103, as shown in FIG.
13 are connected, and this suction duct 113 connects to the purifier main body 1.
14, the end of which is connected to a duct (10
A blowout duct 109 opening into the inside of the air conditioner 5 is connected thereto.

In the air conditioner configured as above, the air conditioned space 113
Human body sensor 115 and flame sensor 117 that detect the degree of contamination inside
．． The air-conditioned space 113 is detected by the signal from the odor sensor 119.
If the degree of contamination within the
1, the air cleaner 107 is activated, and the air conditioned space 113 is
The air inside is suctioned and purified, and this clean air is directly introduced into the air conditioner 104, which air-conditions the air-conditioned space 113.

Therefore, purified air can be introduced into the air conditioner 104 to effectively prevent air contamination in the entire air-conditioned space 113.

In this case, it is possible to prevent air pollution from spreading to other rooms more than in the first embodiment.

That is, since air purified by the air cleaner 107 is directly introduced into the air conditioner 123, purified air is constantly introduced into the air conditioner 104.

In the first embodiment, an example was explained in which the tubular suction duct 71 and the blow-off duct 67 were connected to the purifier main body 63, but the present invention is not limited to the above embodiment. As shown in FIG. 12 and FIG. 12, even if two centrifugal blowers 133 are arranged inside the cleaner body 131 and the suction duct 135 and the blow-off duct 137 are integrally formed inside the cleaner body 131, the first embodiment Almost the same effect as the example can be obtained. In this case, centrifugal air blower @13
3 may be one, or the number may be changed depending on the air volume.

Further, in the above embodiment, the human body sensors 93, 115. Flame sensors 95, 117° and odor sensors 97, 119 are arranged, and these sensors 93, 115,
Although the example in which the air cleaner 57.107 is controlled by the signals from 95, 117, 97.119 has been described, the present invention is not limited to the above embodiment.
If only the odor sensor is placed and the air purifier is controlled, the first
Following the process shown in Figure 3, the operation of the air cleaner is stopped.

〔Effect of the invention〕

The air conditioner according to claim 1 includes: an air conditioner that introduces conditioned air into the conditioned space, circulates the conditioned air, and introduces the circulated conditioned air from the conditioned space; and an air conditioner that sucks and cleans the air in the conditioned space. Since the configuration includes an air purifier that discharges this clean air into the air-conditioned space, the air in the air-conditioned space is sucked and purified by the air purifier, and this clean air is discharged into the air-conditioned space. Clean air is sucked in by an air conditioner to condition the air conditioned space.
Thereby, purified air can be introduced into the air conditioner to effectively prevent air contamination in the entire air-conditioned space.

The air conditioner according to claim 2 includes: an air conditioner that introduces conditioned air into the conditioned space, circulates the conditioned air, and introduces the circulated conditioned air from the conditioned space; and an air conditioner that sucks and purifies the air in the conditioned space. Since the configuration includes an air purifier that discharges this clean air to the air conditioner, the air in the air conditioned space is sucked and purified by the air purifier, and this clean air is directly introduced into the air conditioner. The air-conditioned space is air-conditioned, and purified air is thereby introduced into the air conditioner, thereby effectively preventing air contamination in the entire air-conditioned space.

The air conditioner according to claim 3 is the air conditioner according to claim 1 or 2, in which a sensor for sensing the degree of contamination in the air conditioned space is disposed in the air conditioned space, and a signal from the sensor is used to detect the degree of contamination in the air conditioned space. When the degree of contamination exceeds a certain level, the control device activates the air purifier, and the signal from the sensor that detects the degree of contamination in the air-conditioned space indicates that the degree of contamination in the air-conditioned space has exceeded a certain level. In this case, the air cleaner is operated by the control device to purify the air in the air-conditioned space, and the air cleaner can be operated only when necessary for economical use.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a first embodiment of an air conditioner according to the present invention. FIG. 2 is a partially cutaway plan view of the air cleaner shown in FIG. 1. FIG. 3 is a partially cutaway side view of the air cleaner shown in FIG. 1. FIG. 4 is a plan view showing the filter of FIG. 1. FIG. 5 is a partially cutaway perspective view of the filter shown in FIG. 4. FIG. 6 is a longitudinal cross-sectional view showing the sound absorbing member of the muffler and the main body of the cleaner. FIG. 7 is a flowchart showing the operation stoppage of the air cleaner. FIG. 8 is an explanatory diagram showing a second embodiment of the air conditioner of the present invention. FIG. 9 is a partially cutaway plan view of the air cleaner shown in FIG. 8. FIG. 10 is a partially cutaway side view of the air cleaner shown in FIG. 8. FIG. 11 is a plan view showing an example in which the suction duct and the blowout duct are integrally provided in the main body of the cleaner. FIG. 12 is a cross-sectional view of the main body of the cleaner shown in FIG. 11. FIG. 13 is a flow chart showing the operation stoppage of the air cleaner when only the odor sensor is disposed on the ceiling. FIG. 14 is an explanatory diagram showing a conventional air conditioner. [Explanation of symbols of main parts] 45.113...Air conditioned space 47.104...Air conditioner 57°99°93°95°97°07...Air cleaner 21...Control device 15. ...Human body sensor 17...Flame sensor 19...Odor sensor.

Claims (3)

[Claims] (1) An air conditioner that introduces conditioned air into an air-conditioned space and circulates the air-conditioned space, and introduces the circulated conditioned air from the air-conditioned space; and an air conditioner that sucks and purifies the air in the air-conditioned space and purifies the air An air conditioner comprising: an air cleaner that discharges air into the air conditioned space. (2) an air conditioner that introduces conditioned air into the conditioned space and circulates the conditioned air and introduces the circulated conditioned air from the conditioned space; and an air conditioner that sucks and purifies the air in the conditioned space and purifies the air. An air conditioner comprising: an air cleaner that introduces air into the air conditioner. (3) A sensor is placed in the air-conditioned space to detect the degree of contamination in the air-conditioned space, and a signal from this sensor indicates that when the degree of contamination in the air-conditioned space exceeds a certain level, the control device The air conditioner according to claim 1 or 2, wherein the air cleaner is operated by.