JPH05203244A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner, in which a PMV value is computed without being constrained by the position of installation of a detecting means and the PMV value is controlled at a neutral value and the PMV value is controlled at the neutral value in all living regions even when the PMV value is distributed in air-conditioning space, regarding the air conditioner automati cally controlling indoor environment so as to be made comfortable by the PMV value. CONSTITUTION:An air blower 6 circulating indoor air, a heat exchanging means heating or cooling suction air, an every-zone PMV-value computing means 26 dividing a living region into a plurality of zones and computing the PMV values of each zone, air-quantity adjusting means 12a, 12b adjusting a plurality of the quantities of air blown off corresponding to each zone, and a plurality of air-quantity adjusting control means 27, 28 controlling a plurality of the air-quantity adjusting means so that the PMV values of each zone are made neutral are provided, thus, quickly making the PMV values reach a comfortable region and stabilizing the PMV values in all living regions even when the PMV values are distributed in the living region.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for automatically controlling an indoor environment so that a occupant can feel comfortable.

[0002]

2. Description of the Related Art A conventional air conditioner is controlled to keep a room temperature within a certain temperature range, but it should be designed so as to keep the sensation of warmth and coolness of a person living therein. A comfort index called PMV has been proposed in order to realize such comfort, and one that controls an air conditioner based on this index is disclosed in Japanese Patent Application Laid-Open No. 2-242037.

PMV (Predicted Mean)
Vote) is translated as an average expected thermal sensation report and is an index for evaluating the comfort of thermal environment. It was proposed by Professor Whanger of the Technical University of Denmark and was published in 1984.
It has been internationally standardized as SO-7730. This PMV is a function of temperature, humidity, radiant temperature, and air velocity as environmental factors, and activity amount and clothing amount as human body factors, and can be calculated from these values by the formula described in ISO-7730. .. And this PMV value 0
Is neutral and comfortable, 3 is hot, 2 is warm,
1 is defined as slightly warm, -3 as cold, -2 as cool, and -1 as slightly cool. The description of the formula and the calculation method will be omitted.

The one disclosed in Japanese Patent Laid-Open No. 2-242037 has a detection means for detecting temperature, humidity and radiation temperature in a living area, and PMV value is set from setting means for setting air flow velocity, activity amount and clothing amount. Is calculated, and various air conditioners are cooperatively controlled using the temperature as a control parameter so that the PMV value becomes neutral.

[0005]

However, in the conventional method, since the environmental element in the living area is directly detected, the installation place of the detecting means is restricted and the structure becomes expensive.
Further, as shown in FIG. 10, even if the PMV values are distributed in the air-conditioned space due to differences in radiation temperature and the like, the PMV values are made neutral in all living areas in order to make the PMV values neutral around the detection location. It had the drawback of not being able to.

Further, there is a drawback that air conditioning is performed more than necessary in order to make the PMV value neutral regardless of the zone where people are present and the zone where there is no person in the air-conditioned space.

The present invention is to solve the above-mentioned conventional problems. The PMV value is calculated without being restricted by the installation location of the detecting means, the PMV value is quickly controlled to be neutral, and the PMV value is controlled in the air-conditioned space. PMV in all residential areas, even if distributed
It is an object of the present invention to provide an air conditioner in which the value is controlled to be neutral and the PMV value is controlled to be out of neutral so that unnecessary air conditioning is not performed in a zone where there is no person.

[0008]

In order to achieve this object, an air conditioner of the present invention comprises a blower for circulating indoor air, a heat exchange means for heating or cooling intake air, and
Zone-by-zone PMV value calculation means for dividing the residential area into a plurality of zones and calculating the PMV value of each zone, air volume control means for adjusting the air volume of a plurality of blown air corresponding to each zone, and A plurality of air volume adjustment control means for controlling the plurality of air volume adjustment means are provided so that the PMV value becomes neutral.

In addition, PM is generated by a neural network.
A neuro PMV value calculating means for learning V value calculation in advance and inferring the PMV value of the living area from the input condition is provided.

Further, a plurality of human body detecting means for detecting the presence / absence of a person in each zone, the PMV value of the zone where the person is present is neutral, and the PMV value of the zone where there is no person is the air volume adjusting means so as to be out of the neutral state. A plurality of human body-adaptive air volume adjustment control means for controlling

[0011]

According to the present invention, the residential area is divided into a plurality of zones and the PMV value of each zone is individually controlled by the air volume adjusting means corresponding to each zone, so that the PMV values are distributed. However, the PMV value can be controlled to be neutral in all living areas.

Further, since the PMV value in the living area is preliminarily learned and inferred by the neural network from the limited input conditions that can be detected by the main body of the air conditioner, it is inexpensive without being restricted by the installation location of the detecting means. The PMV value of the living area can be obtained with various configurations.

Further, since the PMV value of the zone where people are present is neutral, and the PMV value of the zone where there is no person is such that the air volume adjusting means is controlled so as to be out of neutral, energy is saved without unnecessary air conditioning. In addition, it is possible to quickly control the PMV value to be neutral in the zone where people are.

[0014]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an air conditioner. In FIG. 1, 1 is a compressor, 2 is a four-way valve, 3 is an indoor heat exchanger which is a heat exchange means for heating or cooling the intake air in the room, 4 is a pressure reducer, and 5 is an outdoor heat exchanger. To form a refrigeration cycle. Reference numeral 6 is an indoor blower that takes in indoor air and blows out air heated or cooled by the indoor heat exchanger 3, and 7 is an outdoor blower. Reference numeral 8 is an indoor unit installed indoors, and 9 is an outdoor unit installed outdoors. Switching between the cooling operation and the heating operation is performed by switching the four-way valve 2 to switch the flow of the refrigerant in the refrigeration cycle.

FIG. 2 is an example of the indoor unit 8 and is a schematic view of a cassette type embedded in the ceiling. Reference numerals 10a and 10b denote air outlets provided in two directions, each of which is an electric louver 11a for changing the wind direction up and down as wind direction changing means.
11b is provided. Further, electric dampers 12a and 12b for adjusting the air volume are provided as the air volume adjusting means. The electric dampers 12a and 12b are driven by a stepping motor or the like, and the opening degree of the damper can be arbitrarily determined.

In this embodiment, the explanation of the stepping motor and the transmission mechanism will be omitted. Reference numeral 13 is a suction port for indoor air, and 14 is a filter for removing dust and dust in the air. Reference numeral 15 is an induction motor of the indoor blower 6. Reference numeral 16 is a heat insulating wall that separates intake air and blown air.

FIG. 3 is a flow chart of air in the vicinity of one outlet 10a. As shown in the figure, the amount of blown air is determined by the angle θ with the vertical of the damper. In this embodiment, θ
Is 0 degrees (100%), 15 degrees (about 80%), 30 degrees (about 70%), and 45 degrees (about 50%).

Since there are two outlets, if the air volume on one side is reduced to 50%, the air volume on the other side becomes approximately 150%.
Also, when the air volume is switched and the "strong" notch is present, the total air volume is 20.
m ³ / min, when the "medium" notch is 16m ³ / min,
With a “weak” notch it is 12 m ³ / min.

FIG. 4 is a schematic diagram of zone division according to this embodiment. Reference numeral 17 denotes a room to be air-conditioned, and the zone is divided into two zones according to the two blowing directions of the indoor unit 8.

FIG. 5 is a functional block diagram of this embodiment.
Reference numeral 18 denotes a first zone state detecting means installed in the living area of the first zone, which is a first zone room temperature detecting means 19, a first zone radiation temperature detecting means 20, a first zone humidity detecting means 21,
It comprises first zone air flow velocity detecting means 22, first zone activity amount setting means 23 and first zone clothing amount setting means 24 which are set by the occupants of the first zone.

Reference numeral 25 is a second zone state detecting means for detecting the state of the second zone in the same manner. Reference numeral 26 is a state information for each zone input from the first and second zone state detecting means 18, 25. PM for each zone to calculate PMV value of
It is a V value calculation means.

Numeral 27 indicates a first zone according to the PMV value of the first zone.
First electric damper control means for controlling the angle of the electric damper 12a, 28 is second electric damper control means for controlling the angle of the second electric damper 12b according to the PMV value of the second zone, and the first and second electric dampers are provided. Control means 27,
28 is controlled so that the PMV value of each zone quickly reaches the comfortable area and stabilizes. Reference numeral 29 is a refrigeration cycle control means for controlling the indoor blower 6, the outdoor blower 7, the compressor 1 and the four-way valve 2, which is also controlled by the PMV value.

An example of the operation of the air conditioner having the above configuration will be described with reference to the drawings by taking heating as an example.

FIG. 6 is a timing chart showing an operation example during the heating operation, where the solid line shows the first zone and the broken line shows the second zone. In this example, the radiation temperature in the second zone is considerably lower than that in the first zone at the start of operation. Therefore, the PMV value in the first zone is -2 (cool), and the PMV value in the second zone is -3 or less (cold).
Becomes

Therefore, the angle θ of the first electric damper 12a
Is controlled to 15 degrees and the angle θ of the second electric damper 12b is controlled to 0 degree, the amount of blown air in the first zone decreases (8 m ³ / min) and the amount of blown air in the second zone increases (12 m ³ / Min). As a result, the PMV value in the second zone rapidly rises. Then, when the difference in the radiation temperature is almost eliminated at the point A and the PMV values become almost the same, the angle θ of the first electric damper 12a and the second electric damper 12b is controlled to 0 degree, so that the blowing air amount of the first zone is controlled. And the amount of blown air in the second zone becomes equal (10
m ³ / min), when the PMV value becomes -1 at point B, the air volume switching is set to "medium", both air volumes are reduced to 8 m ³ / min, and when the PMV value becomes 0 at point C, the operation of compressor 1 is stopped. And the air volume switching is set to "weak", and the air volume is 6m.
Drop to ³ / min to maintain a comfortable state.

As described above, according to this embodiment, the compressor 1
A four-way valve 2, an indoor heat exchanger 3 which is a heat exchange means for heating or cooling the intake air in the room, and a decompressor 4.
A refrigeration cycle configured by connecting the outdoor heat exchanger 5 in an annular shape, an indoor blower 6 that takes in indoor air and blows out air heated or cooled by the indoor heat exchanger 3, an outdoor blower 7, and a ceiling 2 of cassette type indoor unit 8 to be embedded
The outlets 10a and 10b that are provided in each direction to blow out heated or cooled air, the first electric damper 12a and the second electric damper 12b that are provided inside the respective outlets and adjust the air volume of the blown air, and the living area. Zone-by-zone PMV value calculating means 26 for calculating the PMV value of each zone divided into two zones according to the blowing direction of the indoor unit 8 and the first and second electric dampers 12a, 12b are controlled according to the PMV value of each zone. Since the first and second electric damper control means 27 and 28 are provided, even if the PMV values are distributed in the living area, PM is used in the entire living area.
The V value can quickly reach the comfortable area and be stabilized.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.

FIG. 7 is a functional block diagram of this embodiment.
Regarding the zones, only the first zone is shown. Reference numeral 30 denotes a first zone neuro state detecting means, which is a suction temperature detecting means 31 installed at the suction port 13 of the indoor unit 8
The zone radiation temperature detecting means 20, the first zone humidity detecting means 21, the first zone wind speed determining means 32 of the indoor blower 6, the first zone wind direction determining means 33 set by the electric dampers 11a and 11b, and the occupant himself / herself set. It comprises first zone activity amount setting means 23 and first zone clothing amount setting means 24. The suction temperature detection means 31, the first zone radiant temperature detection means 20, the first zone humidity detection means 21, the first zone wind speed determination means 32, and the first zone wind direction determination means 33 are installed in the main body of the indoor unit 8 and are installed at different locations. Not restricted.

Reference numeral 34 is a first zone neuro state detecting means 3
This is a zone-specific neuro PMV value calculating means for preliminarily learning the relationship between the input of 0 and the PMV value of the residential area by a neural network and inferring the PMV value of the residential area from the input of the first zone neuro state detecting means 30. The zone-specific neuro PMV value calculation means 34 expresses a result learned in advance by a neural network by the inventor based on a large number of experimental data. Hereinafter, description of the same configuration as that of FIG. 5 will be omitted.

As described above, according to this embodiment, the suction temperature detecting means 31, the first zone radiation temperature detecting means 20,
The first zone humidity detecting means 21, the first zone wind speed determining means 32, and the first zone wind direction determining means 33 are installed in the main body of the indoor unit 8, and the PMV value of the living area is inferred from the input of the first zone neuro state detecting means 30. By providing the zone-specific neuro PMV value calculating means 34, the PMV value is inferred without directly detecting the environmental elements of the living area, so that it is not necessary to install the detecting means in the living area and the cost is low. be able to.

(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings.

FIG. 8 is a functional block diagram of this embodiment.
Reference numeral 35 is a first zone human body detecting means for detecting the presence or absence of a person in the first zone, and 36 is a second portion for detecting the presence or absence of a person in the second zone.
Zone human body detection means 37 and 38 are provided for the first and second electric dampers 12a and 12 so that the PMV value of the zone where a person is present is neutral and the PMV value of the zone where there is no person is neutral.
It is a human body-adaptive air volume adjustment control means for controlling b. The other configurations are the same as those in FIG. 5, and the description thereof will be omitted.

An operation example of the air conditioner having the above configuration will be described with reference to the drawings by taking heating as an example.

FIG. 9 is a timing chart showing an operation example during the heating operation, where the solid line shows the first zone where there is no person, and the broken line shows the second zone where there is a person. In this embodiment, the PMV values of the first zone where there is no person and the second zone where there is a person are both −3 or less (cold) at the start of operation.

Therefore, the angle θ of the first electric damper 12a
By controlling the angle θ of the second electric damper 12b to 15 ° and the angle θ of the second electric damper 12b to 0 °, the amount of blown air in the first zone decreases (8 m ³ / min) and the amount of blown air in the second zone increases (12 m ³ / Min). As a result, the PMV value in the second zone rapidly rises. And the second at point D
When the PMV value of the zone becomes -1, switch the air volume to "medium".
The first electric damper 12a and the second electric damper 12
By controlling the angle θ of b to 0 degree, both the blowing air volume in the first zone and the blowing air volume in the second zone are 8 m ³
PM in the 1st zone with no people at point E
When the V value becomes -1, the air volume switching is set to "weak", the air volume is both reduced to 6 m ³ / min, and when the PMV value in the second zone where people are at point 0 becomes 0, the operation of the compressor 1 is stopped and it is comfortable. Stay in the state.

As described above, according to this embodiment, the living area is divided into a plurality of zones, and the PMV (Pred) of each zone is divided.
PMV value calculating means 26 for each zone for calculating the icted Mean Vote) value, and the first and second electric dampers 12 for adjusting the blown air volume corresponding to each zone.
a, 12b, first and second human body detecting means 35, 36 for detecting the presence / absence of a person in each zone, and PMV in the zone where a person is present
The value is neutral, and the PMV value in the zone where there is no person is provided with the human body-corresponding air flow rate adjusting control means 37 and 38 for controlling the first and second electric dampers 12a and 12b so as to be out of neutral. Energy saving can be achieved without air conditioning, and the PMV value can be quickly controlled to be neutral in the zone where people are.

Although the first, second and third embodiments have been described above, it is needless to say that the same effect can be obtained by combining the embodiments.

[0039]

As described above, in the air conditioner of the present invention, the blower for circulating the indoor air, the heat exchanging means for heating or cooling the sucked air, and the living area are divided into a plurality of zones. PMV (Predicted Mea)
nVote) value for each zone, PMV value calculating means, air volume adjusting means for adjusting a plurality of blown air volumes corresponding to each zone, and the plurality of air volumes so that the PMV value of each zone becomes neutral. Since a plurality of air volume adjustment control means for controlling the adjustment means are provided, even if the PMV values are distributed in the living area, the PMV values can be quickly reached and stabilized in the comfortable area in the entire living area. ..

Further, the air conditioner of the present invention learns the PMV value calculation in advance by the neural network, and infers the PMV value of the living area from the input condition by the zone neuro P.
Since the MV value calculating means is provided, the PMV value can be preliminarily learned and inferred by the neural network from the limited input conditions that can be detected by the air conditioner main body, and the location of the detecting means is restricted. Instead, the PMV value can be obtained with an inexpensive configuration.

Further, the air conditioner of the present invention has a plurality of human body detecting means for detecting the presence / absence of a person in each zone, the PMV value of the zone where the person is present is neutral, and the PMV value of the zone where there is no person is neutral. Since it is equipped with a plurality of human body-adaptive air volume adjustment control means for controlling each air volume adjustment means so as to be removed,
Energy saving can be achieved without unnecessary air conditioning, and the PMV value can be promptly controlled to be neutral in the zone where people are present.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an air conditioner according to a first embodiment of the present invention.

2A is a schematic cross-sectional view of the cassette type indoor unit of FIG. 1; FIG. 2B is a schematic vertical cross-sectional view of the cassette type indoor unit of FIG.

FIG. 3 is a cross-sectional view of essential parts showing the flow of air near the outlet of FIG. 2 (b).

FIG. 4 is a schematic diagram of zone division in the first embodiment of the present invention.

FIG. 5 is a functional block diagram in the first embodiment.

FIG. 6 is a timing chart showing an operation example during a heating operation in the first embodiment.

FIG. 7 is a functional block diagram of a second embodiment of the present invention.

FIG. 8 is a functional block diagram of a third embodiment of the present invention.

FIG. 9 is a timing chart showing an operation example during a heating operation in the third embodiment.

FIG. 10 is a timing chart showing an operation example of a conventional heating operation.

[Explanation of symbols]

 3 Heat Exchanger 6 Blower 12a, 12b Air Volume Adjusting Means 26 Zone-wise PMV Value Calculating Means 27, 28 Air Volume Adjusting Control Means 34 Zone-wise Neuro PMV Value Calculating Means 35, 36 Human Body Detecting Means 37, 38 Human Body Air Volume Adjusting Means

Claims (3)

[Claims] 1. A blower for circulating indoor air, a heat exchange means for heating or cooling intake air, a living area divided into a plurality of zones, and a PMV (Predi) of each zone.
PMV value calculating means for each zone for calculating a cted mean voltage) value, air volume adjusting means for adjusting a plurality of blown air flow rates corresponding to each zone, and the plurality of PMV values for each zone so that the PMV value becomes neutral. An air conditioner comprising a plurality of air volume adjustment control means for controlling the air volume adjustment means. 2. The air conditioner according to claim 1, further comprising zone-specific neuro PMV value calculating means for preliminarily learning PMV value calculation by a neural network and inferring a PMV value of a living area from an input condition. 3. A plurality of human body detecting means for detecting the presence / absence of a person in each zone, and a PMV value in a zone where a person is present is neutral, and a PMV value in a zone without a person is each air volume adjusting means. The air conditioner according to claim 1, further comprising a plurality of human body-adaptive air volume adjustment control means for controlling the air conditioner.