JPH08219522A - Air-conditioner and air-conditioning system - Google Patents

Abstract

PURPOSE: To condition the air of a room to be in a comfortable state so that a user thereof feels comfortable. CONSTITUTION: A constant speed machine 11B to which an outdoor air temperature transmission request is transmitted from an indoor unit 10B given an instruction to start an operation in a cooling mode transmits the outdoor air temperature transmission request to a boiler 12 through a communication line 55B and the boiler 12 transmits the outdoor air temperature transmission request to an outdoor unit 11A through a communication line 55A. The unit 11A transmits to the boiler 12 an outdoor air temperature taken in from an outdoor air temperature thermistor 110A and the boiler 12 transmits the outdoor air temperature to the constant speed machine 11B. The constant speed machine 11B transmits to the unit 10B the outdoor air temperature which it receives. In the case when a comfortable temperature based on the received outdoor air temperature is different from a set temperature set by a user, the unit 10B and the constant speed machine 11B set the comfortable temperature as the set temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and an air conditioner system, and more particularly to an air conditioner and an air conditioner system for controlling air conditioning in a room.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner, the temperature and humidity inside a room are set on the basis of a state variable representing the air conditioning state inside the room, for example, the temperature and humidity set inside the room. Air-condition so that the temperature and humidity are set.

Here, for example, when the outdoor temperature is extremely high, such as during a hot summer, the set temperature set by the user who enters the room provided with the air conditioner from the outdoor is much lower than the outdoor temperature. It is usual to set the temperature.

However, even if the set temperature is much lower than the outdoor temperature, the air conditioner air-conditions the indoor temperature to the set temperature. The air-conditioning condition is cold and makes the user feel uncomfortable. Therefore, the user will perform the operation again to raise the set temperature.

Similarly, even when the outdoor temperature is extremely low such as during a severe winter, the user sets the temperature to a temperature much higher than the outdoor temperature, and the indoor air-conditioning state at the set temperature becomes the above. The user feels hot and uncomfortable, and the user operates again to lower the set temperature.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air conditioner capable of performing air conditioning in a room so that a user who uses the room feels comfortable. To do.

[0007]

In order to achieve the above object, the invention according to claim 1 uses an outdoor temperature detecting means for detecting an outdoor temperature, and the use of the indoor area based on the detected outdoor temperature. And a control means for controlling the air conditioning in the room based on the calculated state variable.

According to a second aspect of the present invention, the first air conditioner, the second air conditioner, the first air conditioner and the second air conditioner are used for air conditioning at least during heating operation. A heat source unit for supplying hot water, a communication unit for communicating data between the first air conditioner and the heat source unit and between the second air conditioner and the heat source unit; 1. An air conditioning system comprising: an air conditioner of No. 1 and an outdoor temperature detecting means for detecting an outdoor temperature provided in the heat source device, wherein the first air conditioner is the first air conditioner. A user using the room based on at least one of the outdoor temperature detected by the outdoor temperature detection means provided in the heat source machine and communicated by the outdoor temperature detection means provided in the machine and the communication means. Find a state variable that you feel comfortable with The air conditioning in the room is controlled based on the state variable, and the second air conditioner is communicated by the communication unit and is operated by the outdoor temperature detecting unit provided in the first air conditioner and the heat source unit. Based on at least one of the detected temperatures outside the room, a state variable that the user who uses the room feels comfortable is obtained, and the air conditioning in the room is controlled based on the obtained state variable.

According to a third aspect of the present invention, the first air conditioner, the second air conditioner, the first air conditioner and the second air conditioner are used for air conditioning at least during heating operation. A heat source unit for supplying hot water, a communication unit for communicating data between the first air conditioner and the heat source unit and between the second air conditioner and the heat source unit; An outdoor air conditioner provided with either one of the air conditioner and the heat source device for detecting an outdoor temperature, wherein the first air conditioner is the outdoor air conditioner. When the temperature detection means is provided in the first air conditioner, the outdoor temperature detected by the outdoor temperature detection means, and when the outdoor temperature detection means is provided in the heat application device, the communication means Is detected by the outdoor temperature detecting means. Seeking user comfort and feel state variables utilizing said chamber based on the outdoor temperature, and controlling the air conditioning of the room on the basis of the state variable determined, the second
The air conditioner determines the state variable that the user who uses the room feels comfortable based on the outdoor temperature that is communicated by the communication means and is detected by the outdoor temperature detection means, and based on the obtained state variable. The air conditioning in the room is controlled.

[0010]

According to the first aspect of the invention, the outdoor temperature detecting means detects the outdoor temperature. The control means obtains a state variable that a user who uses the room feels comfortable based on the outdoor temperature detected by the outdoor temperature detecting means, and controls the air conditioning in the room based on the obtained state variable.

Here, the state variable is a variable which is predetermined on the basis of the outdoor temperature detected by the outdoor temperature detecting means and which represents the air conditioning state of the room which the user who uses the room feels comfortable. For example, in the cooling mode, the heating mode, the automatic mode, etc., the temperature at which the user feels comfortable (comfort temperature), and in the dry mode, the humidity at which the user feels comfortable (comfort humidity) and these In this mode, there is a motor rotation speed (comfort speed) corresponding to the air volume that the user feels comfortable.

Therefore, for example, when the target temperature set at the start of the operation in the cooling mode is different from the comfortable temperature obtained based on the detected outdoor temperature, the comfortable temperature is set again as the target temperature, The cooling mode operation is performed so as to reach the set temperature (comfort temperature).

As described above, the state variable that the user who uses the room feels comfortable is obtained based on the outdoor temperature detected by the outdoor temperature detecting means, and the air conditioning in the room is controlled based on the obtained state variable. Therefore, it is possible to make the air conditioning in the room comfortable for a user who enters from the outside.

According to a second aspect of the present invention, there is provided a first air conditioner provided with an outdoor temperature detecting means for detecting an outdoor temperature, a second air conditioner not provided with the outdoor temperature detecting means and an outdoor area. An outdoor temperature detecting means for detecting the temperature of the air conditioner is provided, and the first air conditioner and the second air conditioner are provided with a heat source device that supplies hot water for air conditioning at least during heating operation (operation in the cooling mode). .

Here, the communication means communicates data between the first air conditioner and the heat source device and between the second air conditioner and the heat source device.

Therefore, in the first air conditioner, the outdoor temperature can be input from the outdoor temperature detecting means provided in the first air conditioner, and the outdoor temperature detecting means provided in the heat source device can be used. The detected outdoor temperature can be communicated and received by the communication means.

Therefore, the first air conditioner is an outdoor unit communicated by the outdoor temperature detecting means and the communication means provided in the first air conditioner and detected by the outdoor temperature detecting means provided in the heat source device. At least one of the temperatures, that is, for example, the outdoor temperature detected by the outdoor temperature detecting means provided in the first air conditioner, and the outdoor temperature detecting means provided by the communication means and provided by the heat source equipment. Based on the determined outdoor temperature and the average value of these outdoor temperatures, a state variable that a user who uses the room feels comfortable is obtained, and the air conditioning in the room is controlled based on the obtained state variable.

Further, the second air conditioner can receive the outdoor temperature detected by the outdoor temperature detecting means provided in the first air conditioner and the heat source device by communicating with the communicating means. .

Therefore, the second air conditioner has at least one of the outdoor temperatures communicated by the communication means and detected by the outdoor temperature detection means provided in the first air conditioner and the heat source device, that is, For example, the outdoor temperature detected by the outdoor temperature detecting means provided in the first air conditioner, the outdoor temperature detected by the outdoor temperature detecting means provided in the heat source device, and the average value of these outdoor temperatures. Based on this, a state variable that the user who uses the room feels comfortable is obtained, and the air conditioning in the room is controlled based on the obtained state variable.

The state variable has the same meaning as the state variable according to the first aspect of the invention. As described above, the first air conditioner provided with the outdoor temperature detecting means can make the indoor air-conditioning state comfortable for the user who enters from the outside. Further, the second air conditioner not provided with the outdoor temperature detecting means is the outdoor temperature which is communicated by the communicating means and detected by the outdoor temperature detecting means provided in the first air conditioner and the heat source device. Therefore, the air conditioning in the room can be made comfortable to the user who has entered the room, as in the air conditioner provided with the outdoor temperature detecting means.

The invention according to claim 3, the first air conditioner,
A heat source device that supplies hot water for air conditioning to at least the heating operation (operation in the cooling mode) to the second air conditioner, the first air conditioner, and the second air conditioner that are not provided with the outdoor temperature detecting means. I have it. Here, the outdoor temperature detecting means for detecting the outdoor temperature is provided in either the first air conditioner or the heat source device.

Here, in the first air conditioner, when the outdoor temperature detecting means is provided in the first air conditioner, the outdoor temperature can be input from the outdoor temperature detecting means. Further, the first air conditioner can receive the outdoor temperature detected by the outdoor temperature detecting means by the communication means when the outdoor temperature detecting means is provided in the heat source device.

Thus, the first air conditioner thus obtains the state variable that the user who uses the room feels comfortable based on the input or received outdoor temperature, and the indoor state based on the obtained state variable. Control air conditioning.

Further, the second air conditioner receives the outdoor temperature detected by the outdoor temperature detecting means provided in either the first air conditioner or the heat source equipment by communicating with the communicating means. can do.

Accordingly, the second air conditioner is detected by the outdoor temperature detecting means provided in one of the first air conditioner and the heat source device which are thus communicated and received by the communication means. Based on the obtained outdoor temperature, a state variable that a user who uses the room feels comfortable is obtained, and the air conditioning in the room is controlled based on the obtained state variable.

As described above, since the first air conditioner and the second air conditioner can receive the outdoor temperature by being communicated by the communication means even if the outdoor temperature detecting means is not provided, Similar to the air conditioner provided with the temperature detecting means, the air conditioning in the room can be made comfortable for the user who enters from the outside.

[0027]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, the air conditioning system of the present embodiment has an indoor unit 10A in which a single unit is provided in each of a plurality of rooms [three rooms in the present embodiment (not limited to three rooms)]. 10B, 10C, an outdoor unit 11A installed outdoors, constant speed machines 11B, 11C, and a boiler 12. The outdoor unit 11A is a unit (hereinafter, referred to as an inverter type) that can change the frequency of the power supply that controls the compressor 26 described later. On the other hand, the constant speed machines 11B and 11C are those in which the frequency of the power source for controlling the compressor 26 cannot be changed (hereinafter, referred to as constant speed type).
The indoor unit 10A and the outdoor unit 11A are
It constitutes the first air conditioner of the present invention. Further, the indoor unit 10B and the outdoor unit 11B, and the outdoor unit 10C and the outdoor unit 11C are respectively the second of the present invention.
Constitutes an air conditioner.

Indoor unit 10A and outdoor unit 11
Each of the A, the indoor unit 10B and the constant speed machine 11B, the indoor unit 10C and the constant speed machine 11C has a wiring for information communication for communicating information such as outside air temperature (outdoor temperature), as will be described later. Hereinafter referred to as a communication line.) 14A,
It is connected by 14B and 14C. The outdoor unit 11A and the boiler 12 are connected to the communication lines 55A1 and 55A2.
Are connected by a communication line 55A. Further, the constant speed machine 11B and the boiler 12 are connected to the communication lines 55B1 and 55B2.
Are connected by a communication line 55B. The constant speed machine 11C and the boiler 12 are connected to the communication lines 55C1 and 55C2.
Are connected by a communication line 55C. The outdoor unit 1 is connected via the communication lines 55A, 55B, 55C.
1A and constant speed machines 11B and 11C transmit instruction information to the boiler to instruct hot water to a low temperature or a high temperature.

The outdoor unit 11A is provided with an outside air temperature sensor 110A for detecting the outside air temperature, as will be described later. Further, as will be described later, the boiler 12 has
An outside air temperature sensor 110B for freezing prevention is provided.

Further, the air conditioning system is provided with a refrigerant circulation path for circulating a refrigerant in each of the indoor unit 10A and the outdoor unit 11A, the indoor unit 10B and the constant speed machine 11B, and the indoor unit 10C and the constant speed machine 11C. .
First, with reference to FIG. 2, a refrigerant circulation path for circulating a refrigerant between the indoor unit 10A and the outdoor unit 11A will be described. That is, as shown in FIG. 2, the indoor unit 1
At 0A, an indoor heat exchanger 16 is provided in the air passage of a single unit so that the evaporator in the refrigeration cycle is arranged to be on the windward side of the radiator to which hot water is supplied. The evaporator includes a refrigerant coil and evaporates the refrigerant flowing in the refrigerant coil to perform heat exchange. Further, the radiator includes a hot water coil, and heat is exchanged by the hot water flowing in the hot water coil. A fan driven by a fan motor 70E, which will be described later, is provided near the indoor heat exchanger 16 to blow air through the indoor heat exchanger 16.

The evaporator of the indoor heat exchanger 16 is connected to the valve 20 of the outdoor unit 12 via a refrigerant pipe 18A composed of a thick pipe. The valve 20 is a muffler 2
2, an accumulator 24, a compressor 26, an outdoor heat exchanger 28 having a refrigerant coil for exchanging heat with the refrigerant flowing in the refrigerant coil, and a capillary tube 30.
It is connected to the valve 32 via (pressure reducing device). The valve 32 is a refrigerant pipe 34A formed of a thin tube.
By being connected to the evaporator of the indoor heat exchanger 16 via the, a closed refrigerant circulation path, that is, a refrigeration cycle is formed. A fan driven by a fan motor 112A, which will be described later, is provided near the outdoor heat exchanger 28 to blow air through the outdoor heat exchanger 28.

The indoor unit 10B and the constant speed machine 11
B, the refrigerant circulation path for circulating the refrigerant in each of the indoor unit 10C and the constant speed machine 11C is the above-mentioned refrigerant circulation path (see FIG. 2).
1), but instead of the refrigerant pipe 18A and the refrigerant pipe 34A, as shown in FIG.
The refrigerant pipes 18B and 18C and the refrigerant pipes 34B and 34C are provided.

Further, the air conditioning system is provided with a hot water circulation passage for circulating hot water between each of the indoor units 10A, 10B, 10C and the boiler 12. First, with reference to FIG. 3, a hot water circulation path for circulating hot water between the indoor unit 10A and the boiler 12 will be described. That is, this FIG.
As shown in, the radiator of the indoor heat exchanger 16 is connected to the hot water inlet nipple 38 of the outdoor unit 12 via the hot water pair tube 36A. Hot water inlet nipple 38
Is connected to a hot water outlet nipple 46 via a pressure tank 40 having a pressure cap 41, a pump 42, and a hot water heat exchanger 44. The hot water outlet nipple 46 is connected to the radiator of the indoor heat exchanger 16 via the variable flow valve 62 for controlling the flow rate of the hot water flowing through the hot water circulation path and the hot water pair tube 48A, thereby sealing the hot water circulation path. Are formed.

The hot water heat exchanger 44 is heated by the burner 50 (heated by gas or kerosene) to generate hot water. The pressure tank 40 of the hot water circulation path is connected to the drain tank 52 connected to the drain via the pressure cap 41, and the hot water circulation path is connected to the pressurizing inlet via the injection pipe 56 having the check valve 54. Tap water or the like is injected into the hot water circulation path through an injection pipe 56. Further, the hot water circulation path is connected to a floor mat for floor heating via a branch pipe 60 equipped with a thermal valve 58. Note that 61
Is a low temperature thermistor, and 63 is a high temperature thermistor.

In this hot water circulation path, when the water temperature rises and the internal pressure reaches a predetermined value (for example, 0.9 kg / cm ² ) or more, the pressure valve of the pressure cap 41 operates, and hot water flows from the pressure relief port to the drain tank 52. Inflow. On the other hand, when the operation is stopped and the temperature of the hot water drops and the internal pressure of the hot water circulation path drops below a predetermined value, the negative pressure valve operates and the drain tank 5
Hot water is recovered from 2.

The hot water circulation path for circulating hot water through each of the indoor units 10B, 10C and the boiler 12 has the same structure as the above-mentioned refrigerant circulation path (see FIG. 3), but is shown in FIG. As described above, the hot water pair tube 36A,
Instead of 48A, hot water pair tubes 36B and 48B and hot water pair tubes 36C and 48C are provided.

Next, the indoor units 10A, 10B, 10
The electric circuit of C will be described. However, since they have the same configuration, the electric circuit of the indoor unit 10A will be described below, and the electric circuit of the constant speed machines 10B and 10C will be omitted. That is, FIG. 4 shows an electric circuit of the indoor unit 10A, and this electric circuit includes a power supply board 70 and a control board 72. The power board 70 includes a fan motor 70 for adjusting the amount of air supplied to the room.
A drive circuit 70A to which E is connected, a motor power supply circuit 70B that generates electric power for driving various motors, a control circuit power supply circuit 70C that generates electric power for a control circuit, and a serial circuit that generates electric power for a serial circuit. A circuit power supply circuit 70D is provided.

The control board 72 is provided with a serial circuit 72A connected to the serial circuit power supply circuit 70D, a drive circuit 72B for driving the motor, and a microcomputer 72C. Drive circuit 7
2B includes an upper and lower flap motor 74A for moving the flap up and down, left and right flap motors 74B, 74C, a floor sensor motor 74D for rotating and driving a floor sensor for detecting the temperature of the entire floor surface, and a flow rate. The variable valve 62 is connected.

The microcomputer 72C also includes a display board 76.
Area for displaying the temperature detection area of the floor surface provided on the sensor substrate 78, which is connected to the display LED for displaying the operation mode etc., the optical sensor, and the receiving circuit for receiving the operation signal from the remote controller. The LED and the floor sensor are connected. In addition, the microcomputer 7
2C includes a room temperature sensor 80A for detecting room temperature, a heat exchanger temperature sensor 80B for detecting the temperature of the refrigerant coil of the indoor heat exchanger 16, and a humidity sensor 80C for detecting indoor humidity.
And a self-diagnosis LED provided on the switch board 82, an operation changeover switch for changing over the operation mode, and a self-diagnosis switch. The operation mode switch is provided with an operation mode display, and the current operation mode is displayed by the display LED provided on the display substrate 76. This operation changeover switch can be changed over by remote operation by a remote controller equipped with an operation mode changeover switch (not shown), but can also be changed over manually.

Next, the outdoor unit 11A and the constant speed machine 11
The electric circuits of B and 11C will be described. First, the electric circuit of the outdoor unit 11A will be described. That is, FIG. 5 shows an electric circuit of the outdoor unit 11A, and this electric circuit includes a rectifying circuit 100 and a control board 102. The electric circuit of the outdoor unit 11A is
In ~, it is connected to the electric circuit of the indoor unit 10A of FIG.

The control board 102 has a communication line 14
A serial circuit 102A connected to the serial circuit power supply circuit 70D of the indoor unit 10A via A, a serial circuit 102E connected to a serial circuit 152A (see FIG. 7) of the boiler 12 described later, and a noise filter 102B for removing noise. , 102C, 102D, inverter 1
A switching power supply circuit 102E and a microcomputer 102F that generate electric power for switching 04 are provided.

The serial circuit power supply circuit 70D and the serial circuit 102A of the indoor unit 10A are connected to the communication line 1
A serial signal (outside air temperature information described later) by PCM (pulse code modulation) is transmitted via 4A (see FIGS. 4 and 5).

An inverter 104 is connected to the switching power supply circuit 102E, and a compressor 26 for compressing a refrigerant is connected to the inverter 104.

Further, the microcomputer 102F includes an outside air temperature thermistor 110A for detecting the outside air temperature, a coil temperature thermistor 110B for detecting the temperature of the refrigerant coil of the outdoor heat exchanger 28, and a compressor temperature thermistor 110C for detecting the temperature of the compressor. It is connected. Note that 112A is a fan motor, and 112B is a fan motor capacitor.

Next, the electric circuits of the constant speed machines 11B and 11C will be described. Since they have the same configuration, the electric circuit of the constant speed machine 11B will be described below. That is, FIG. 6 shows an electric circuit of the outdoor unit 11B, and includes the control board 102 of the outdoor unit 11A described above. Note that the electric circuit of the outdoor unit 11B is also connected to the electric circuit of the constant speed machine 10B in.

The control board 102 has a serial circuit 10 similar to the electric circuit of the outdoor unit 11A described above.
2A, serial circuit 152B of the boiler 12 (see FIG. 7)
Circuit 102C, noise filter 1 connected to
02B, a microcomputer 102F and a switch circuit 102S are provided. The compressor 26 is connected to the switch circuit 102S. The outdoor unit 11B,
11C serial circuit 102A and constant speed machine 10B, 10C
The serial circuit power supply circuit 70D includes communication lines 14B, 1
A serial signal (outside air temperature information described later) by PCM (pulse code modulation) is transmitted via 4C (see FIGS. 4 and 6).

The microcomputer 102F is connected to the coil temperature thermistor 110B and the compressor temperature thermistor 110C similar to the electric circuit of the outdoor unit 11A described above. In addition, 112A is a fan motor, 11
2B is a fan motor capacitor.

Next, the electric circuit of the boiler 12 will be described.
That is, as shown in FIG. 7, the electric circuit of the boiler 12 includes the control board 150. On the control board 150, a power supply circuit 150A connected to a burner controller 152, a serial circuit 152A connected to the serial circuit 102E of the outdoor unit 11A,
A serial circuit 152B connected to the serial circuit 102C of the constant speed machine 11B and a serial circuit of the constant speed machine 11C (see FIG. 6).
Corresponding to the serial circuit 102C) of the serial circuit 152C and the microcomputer 150C to which these are connected
Is provided.

The hot water boiler temperature thermistor 154, the display substrate 156 and the outside air temperature thermistor 110B described above are connected to the microcomputer 150C.

The power supply circuit 150A is used to supply power to the microcomputer 150C and commercial power to the burner controller 152 using commercial power. In addition, serial circuits 152A, 152B, 152C
The serial circuits 102E and 102C, and the serial circuit of the constant speed machine 11C (corresponding to the serial circuit 102C of FIG. 6) are the outdoor unit 11A and the constant speed machines 11B and 11C.
Is an interface circuit for bidirectional communication between each of the above and the boiler 12. That is, the outdoor unit 11A
Serial circuit 102A and boiler 12 serial circuit 1
52A is connected via the communication lines 55A1 and 55A2. Similarly, the serial circuit of the constant speed machine 11B and the serial circuit 1 of the boiler 12
52B, the serial circuit of the constant speed machine 11C and the serial circuit 152C of the boiler 12, respectively,
5B1 and 55B2 are connected via communication lines 55B, ', and' communication lines 55C1 and 55C2. The microcomputer 150C transmits the temperature of the hot water of the boiler 12 detected by the hot water boiler temperature thermistor 154 to the microcomputer 102F via the communication lines 55A, 55B, 55C. On the other hand, the microcomputer 102F (FIGS. 5 and 6)
Command information for making hot water a high temperature (for example, 82 ° C.) and command information for making hot water a low temperature (for example, 62 ° C.) are transmitted. Then, the microcomputer 150C controls the burner controller 152 based on the received signal. Further, during the ignition of the burner, the display LE of the display substrate 156 is
Turn on D.

Next, the operation of this embodiment will be described with reference to the indoor unit 1
0A, 10B, 10C microcomputer 72C control routine (FIG. 8), constant-speed machines 11B, 11C microcomputer 102F control routine (FIG. 9), boiler 12 microcomputer 150C
Control routine (FIG. 10) of the outdoor unit 11A
This will be described with reference to the flowchart showing the 2F control routine (FIG. 11). In addition, the air conditioning system of the present embodiment can perform the operation in the cooling mode, the heating mode, the dry mode, and the automatic mode. First, the operation in the cooling mode will be described.

For example, the indoor units 10A, 10B, 1
When any of the receiving circuits of 0C receives the operation signal (the signal including the information of the setting of the set temperature T _j and the instruction of the operation in the cooling mode) from the remote controller, the operation is started, and step 202 (FIG. 8). In the reference), it is determined whether or not the own indoor unit is connected to the outdoor unit 11A. Here, when the receiving circuit of either the indoor unit 10B or 10C receives the operation signal from the remote controller, the indoor unit 10B or 10C is not connected to the outdoor unit 11A, and thus step 202
Is affirmative and the routine proceeds to step 204. On the other hand, when the reception circuit of the indoor unit 10A receives the operation signal from the remote controller, the indoor unit 10A is not connected to the outdoor unit 11A, and thus the step 2
The judgment of 02 is denied and the routine proceeds to step 206.

In step 204, the outside air temperature transmission request is sent via the communication line 14B or the communication line 14C to the constant speed machine 11B.
(Or the constant speed machine 11C). On the other hand, step 20
In 6, the outside air temperature transmission request is transmitted to the microcomputer 102F through the serial circuit 72A, the serial circuit power supply circuit 70D (see FIG. 4), and the serial circuit 102A (see FIG. 5).

In the next step 208, it is judged whether or not the outside air temperature T ₀ is received. If the judgment is affirmative, the set temperature T _j is fetched in step 210.

At the next step 212, the comfortable humidity T _i is fetched from the RAM (not shown) of the microcomputer 72C based on the outside air temperature T ₀ . Here, the comfortable temperature T _i is a temperature at which a person who enters the room from the outside at the temperature (outside air temperature) T ₀ feels comfortable, and is as shown in Table 1 below. , Microcomputer 7 of constant speed machine 10B, 10C
This data is stored as a map in the RAM (not shown) of 2C. It should be noted that, instead of storing it as a map in this way, an expression expressing the relationship between the outside air temperature T ₀ and the comfortable temperature T _i may be stored.

[0056]

[Table 1] In the next step 214, it is judged whether or not the set temperature T _j and the taken-in comfortable temperature T _i are different. When the set temperature T _j and the comfortable temperature T _i are the same, the set temperature T _j set by the remote controller is equal to the temperature that a person entering the room feels comfortable, and the set temperature in the room needs to be changed. Therefore, the present routine is terminated and the cooling mode operation is performed so that the temperature _{inside the} room becomes the set temperature _j . On the other hand, when the set temperature T _j is different from the comfortable temperature T _i , the set temperature T set by the remote controller is set.
_{Since j} is not a temperature at which a person who has entered the room feels comfortable, in step 212, the comfortable temperature T _i is reset as the set temperature T _j , the routine ends, and the room temperature is set to the comfortable temperature T _i . The cooling mode operation is performed so that the set temperature is reached.

Here, the operation in the cooling mode will be described. First, the operation in the cooling mode by the indoor unit 10A and the outdoor unit 11B will be described. That is, the refrigerant is controlled to circulate through the refrigerant circulation path described above, the refrigerant is condensed in the outdoor heat exchanger 28, the refrigerant is evaporated in the indoor heat exchanger 16, and the indoor air is cooled. Set temperature T
_{Let j} .

At this time, fuzzy control of the compressor 26 may be performed. That is, the difference between the present room temperature and the set temperature is calculated, and the change amount of this difference per unit time is calculated. Then, the frequency change amount is obtained from the map of the frequency change amount of the compressor 26 which is previously determined by the fuzzy inference rule according to this difference and the change amount of this difference per unit time, and the inverter is controlled to control the compressor. Perform frequency control.

Next, the indoor unit 10B and the constant speed machine 11
The operation in the cooling mode by B (the indoor unit 10C and the constant speed machine 11C) will be described. That is, the indoor unit 10
The microcomputer 72C of B (indoor unit 10C) takes in the room temperature from the room temperature sensor 80A at predetermined time intervals, and outputs this information to the serial circuit 72A and the serial circuit power supply circuit 70.
D (see FIG. 4) and serial circuit 102A (see FIG. 6)
Via the microcomputer 1 of the constant speed machine 11B (constant speed machine 11C)
02F, and the microcomputer 102F turns on and off the switch circuit 102S and controls the compressor 26 so that the room temperature becomes the set temperature T _j .

Next, a control routine for the constant speed machines 11B and 11C will be described. The control routine of the constant speed machine 11B starts when an outside air temperature transmission request is received from the indoor unit 10B via the communication line 14B, and the constant speed machine 11BC control routine starts from the indoor unit 10C via the communication line 14C. When an outside air temperature transmission request is received, the process starts, and in step 230, serial communication is performed via the communication line 55B (in the control routine of the constant speed machine 11B) and the communication line 55C (in the control routine of the constant speed machine 11C). Circuit 102C
(See FIG. 6), an outside air temperature transmission request is transmitted to the microcomputer 150C of the boiler 12 via the serial circuit 152B (for the control routine of the constant speed machine 11B) and the serial circuit 152C (for the control routine of the constant speed machine 11C). To do. In the next step 232, it is determined whether or not it has received the ambient temperature T ₀ from the boiler 12, when receiving the ambient temperature T _0, in step 234, the indoor unit through the communication line 14B to the outside air temperature T ₀ 10B is transmitted (in the case of the control routine of the constant speed machine 11B), is transmitted to the indoor unit 10C via the communication line 14C (in the case of the control routine of the constant speed machine 11C), and this processing is ended.

Next, the control routine of the microcomputer 150C of the boiler 12 will be described. This routine is for the outdoor unit 1
The process starts when an outdoor air temperature transmission request is received from 1B or the outdoor unit 11C, and in step 218, the address of the connection terminal of one of the communication lines 55B and 55C to which the outdoor air temperature transmission request is transmitted is stored. As a result, either the outdoor unit 11B or 11C that has transmitted the outdoor air temperature transmission request is stored.

At the next step 220, whether or not it is specified that the outside air temperature is not taken in from the outside air temperature thermistor 110B provided in the boiler 12 and the outside air temperature is taken in from the outside air temperature thermistor 110A provided in the outdoor unit 11A. To judge. If the determination is affirmative, in step 222, the outside air temperature transmission request is transmitted to the communication line 55A.
To the outdoor unit 11A via. On the other hand, when the outside air temperature thermistor 110B provided in the boiler 12 is designated to take in the outside air temperature, at step 228, the outside air temperature is taken from the outside air temperature thermistor 110B, and the routine proceeds to step 226.

[0063] In step 224, it is determined whether or not it has received the ambient temperature T ₀ via the communication line 55A from the outdoor unit 11A, when receiving the ambient temperature T _0, step 226
Then, based on the stored address (step 218),
The outside air temperature T ₀ is transmitted to the outdoor unit 11B or the outdoor unit 11C via the communication line 55B or the communication line 55C,
This process ends.

Finally, the control routine of the outdoor unit 11A will be described. This routine is executed by the microcomputer 72C of the indoor unit 10A via the serial circuit 72A, the serial circuit power supply circuit 70D, the serial circuit 102A or from the microcomputer 150C of the boiler 12 to the serial circuit 152.
The process starts when the outside air temperature transmission request is received via A, the serial circuit 152A, and the serial circuit 102E, and in step 238, the outside air temperature thermistor 110A outputs the outside air T.
₀ is taken in, and in step 240, it is determined whether or not an outside air temperature transmission request is received from the indoor unit 10A. If the determination is affirmative, in step 242, the outside air temperature T ₀ is transmitted to the indoor unit 10A. Then, this process ends.

On the other hand, when the outside air temperature transmission request is received from the boiler 12, the determination at step 240 is denied, and in this case, at step 244, the outside air temperature T ₀ is set.
To end the present process.

As described above, according to this embodiment, when the set temperature set by the operation signal transmitted from the remote controller is different from the comfortable temperature, the comfortable temperature is reset as the set temperature and the indoor temperature is set to the comfortable level. Since the air conditioning control is performed so that the set temperature is reset to the temperature, it is possible to automatically set the air conditioning state in the room to a state where the user feels comfortable to use.

Therefore, in comparison with a conventional air conditioner that performs air conditioning control so that the temperature is simply set, the conventional air conditioner makes the air condition in the room cold for the user even when the room temperature reaches the set temperature. While it feels hot and uncomfortable,
In the present embodiment, since the set temperature is set to the comfortable temperature, there is an excellent effect that the user feels that the air-conditioned state of the room is comfortable when the temperature of the room reaches the set temperature.

In this way, the comfortable temperature is set as the set temperature, and the air-conditioned state of the room that has reached the set temperature is felt to be comfortable for the user. Therefore, like the conventional air conditioner,
Even if the set temperature is reached, it is possible to prevent the user from performing a re-operation such that the user feels uncomfortable and raises or lowers the set temperature, and operability is improved.

Further, in the above-described embodiment, the outside air temperature can be taken in from the boiler 12 or from the air conditioner equipped with the inverter type outdoor unit via the communication line using the boiler 12 as a relay point. Even an air conditioner equipped with the constant speed machine can perform fine control like an air conditioner equipped with an inverter type outdoor unit.

When the outside air temperature is high, the user usually sets the indoor temperature to a temperature much lower than the comfortable temperature. Therefore, if the indoor temperature setting temperature is set to the comfortable temperature, that much It saves power consumption.

In the embodiment described above, the operation in the cooling mode has been described. However, the present invention is not limited to this, and the operation in the heating mode, the dry mode and the automatic mode may be similarly performed. That is, the comfortable temperature and the comfortable humidity based on the outside air temperature (the humidity that the user feels comfortable based on the outside air temperature) are R as in the above-described embodiment.
It should be stored in AM. The relational expression between the outside air temperature and the comfortable temperature or the comfortable humidity may be stored in the RAM. Then, in the operation of each mode, when the set temperature and the set humidity set by the remote controller are different from the comfortable temperature and the comfortable humidity, the comfortable temperature and the comfortable humidity are set as the set temperature and the set humidity,
Operate in each mode.

The operation in each mode is as follows. That is, the indoor unit 10A and the outdoor unit 1
In the dry mode operation by 1A, the refrigeration cycle is controlled so that the refrigerant circulates and the hot water circulation path circulates the hot water, and the conditioned air cooled and dehumidified by the evaporator is reheated by the radiator. By supplying the conditioned air after that to the room, the indoor humidity is set to the set humidity (comfort humidity).

The conditioned air cooled and dehumidified by the evaporator is reheated by the radiator, and the conditioned air is supplied to the room for the following reason.
That is, since the cooling capacity is determined by the rotation speed of the fan, if the fan is operated intermittently at a low speed so that the room temperature does not fall below the set temperature, the room temperature will rise and fall depending on the size of the room and the outside air temperature, while the compressor must be used for dehumidification. Since the capacity of No. 1 cannot be decreased below the minimum capacity, the room temperature may be decreased by 1 to 2 ° from the set temperature, or about 3 ° in some cases.

Therefore, the dehumidified air cooled by the refrigerant coil of the indoor heat exchanger is warmed by the hot water coil provided in the indoor heat exchanger so as not to drop below the set temperature.

The refrigerant may simply circulate in the refrigeration cycle described above, and the compressor may be operated with the minimum capacity so that the rotation speed of the fan is low (for example, weak) to intermittently operate the fan. .

Further, fuzzy control of the compressor 26 and fuzzy control of the flow rate variable valve 62 may be performed. That is, in the fuzzy control of the compressor 26, first, the difference between the current humidity and the preset humidity is calculated, and the change amount of this difference per unit time is calculated. Then, the frequency change amount is obtained from the map of the frequency change amount of the compressor 26 which is previously determined by the fuzzy inference rule according to this difference and the change amount of this difference per unit time, and the inverter 104 is controlled to control the compressor 26.
Frequency control. In the fuzzy control of the flow rate variable valve 62, first, the difference between the current room temperature and the preset temperature is calculated, and the change amount of this difference per unit time is calculated. Then, the valve opening / closing change amount is calculated from the map of the valve opening / closing change amount of the flow rate variable valve 62 which is previously determined by the fuzzy inference rule according to the difference and the change amount of the difference per unit time. The variable flow valve 62 is controlled according to the amount of change.

Next, the indoor unit 10B and the outdoor unit 11B (the indoor unit 10C and the outdoor unit 11)
The dry mode operation according to C) will be described. That is,
In this dry mode operation, the switch circuit 102S is controlled so that the refrigerant circulates in the refrigeration cycle described above and the compressor 26 is operated with the minimum capacity, and the rotation speed of the fan is set to a low speed (for example, weak). Run the fan intermittently.

Next, the indoor unit 10A and the outdoor unit 11A, the indoor unit 10B and the outdoor unit 11B.
The operation in the heating mode by the outdoor unit 10C and the outdoor unit 11C will be described. That is, in the heating mode operation, the boiler 12 is instructed to start the operation, and the hot water is generated in the boiler 12. Then, the generated hot water is circulated in the hot water circulation path and sent to the indoor heat exchanger built in the indoor unit.

The fuzzy control of the flow rate variable valve 62 may be performed. That is, first, the difference between the current room temperature and the preset temperature is calculated, and the change amount of this difference per unit time is calculated. Then, the valve opening / closing change amount is calculated from the map of the valve opening / closing change amount of the flow rate variable valve 62 which is previously determined by the fuzzy inference rule according to the difference and the change amount of the difference per unit time. The variable flow valve 62 is controlled according to the amount of change.

In the above-mentioned embodiment, the set temperature of the room is changed to the comfortable temperature and the humidity of the room is changed to the comfortable humidity based on the outside air temperature taken in from the outdoor unit. However, the present invention is not limited to this. Instead, the set temperature of the indoor temperature may be changed to the comfortable temperature and the indoor humidity may be changed to the comfortable humidity based on the average value of the outside air temperature taken in from the outdoor unit and the outside air temperature taken in from the boiler 12.

Further, although the air conditioning system using the outdoor unit provided with the outside air temperature thermistor has been described, the present invention is not limited to this, and is also applied to the air conditioning system in which only the boiler is provided with the outside air temperature thermistor. can do.

Further, in the above-mentioned embodiment, the air conditioning system including the indoor unit and the outdoor unit, the two indoor units and the constant speed machine has been described, but the present invention is not limited to this, and the outside air temperature thermistor is provided and the compressor is provided. Similarly, only in an air conditioner having an inverter circuit for controlling the frequency of the power supply for controlling
In the operations of the cooling mode, the heating mode, the dry mode, and the automatic mode, the set temperature of the room may be changed to the comfortable temperature and the comfortable humidity based on the outside air temperature.

Furthermore, in the above-described embodiment, the explanation has been given of changing the set temperature in the room to the comfortable temperature and the set humidity in the room to the comfortable humidity based on the outside air temperature, but the present invention is not limited to this. Further, the air volume may be similarly set. That is, the rotation speed (comfort speed) of the motor for rotating the fan, which is predetermined based on the outside air temperature and which gives the air volume that the user feels comfortable, may be stored in the RAM as in the above-described embodiment. .
The relational expression between the outside air temperature and the comfortable speed may be stored in the RAM. Then, in each mode of operation, when the set rotation speed set by the remote controller is different from the comfortable speed, the comfortable speed is set as the set rotation speed, and the operation in each mode is performed.

[0084]

As described above, according to the first aspect of the invention, the state variable that the user who uses the room feels comfortable is obtained based on the outdoor temperature detected by the outdoor temperature detecting means, and the obtained state variable is obtained. Since the air conditioning in the room is controlled based on the variable, the air conditioning in the room can be made comfortable for the user entering from the outside.

According to the second aspect of the present invention, the first air conditioner provided with the outdoor temperature detecting means can make the indoor air-conditioning state comfortable for a user entering from outside. Further, the second air conditioner not provided with the outdoor temperature detecting means is the outdoor temperature communicated by the communicating means and detected by the outdoor temperature detecting means provided in the first air conditioner and the heat source device. Since it is possible to receive the information, there is an effect that the air conditioning in the room can be made to be a comfortable state for the user who has entered from the outside like the air conditioner provided with the outdoor temperature detecting means.

According to the third aspect of the present invention, the first air conditioner and the second air conditioner can receive the outdoor temperature through the communication means even if the outdoor temperature detecting means is not provided. Therefore, it is possible to make the air conditioning in the room feel comfortable to the user who has entered from the outside like the air conditioner provided with the outdoor temperature detecting means.
Has the effect.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a refrigerant circuit diagram of the air conditioner of the embodiment of the present invention.

FIG. 3 is a hot water circuit diagram of the air conditioner of the embodiment of the present invention.

FIG. 4 is an electric circuit diagram of an indoor unit of the air conditioner of the above embodiment.

FIG. 5 is an electric circuit diagram of an outdoor unit of the air conditioner of the above embodiment.

FIG. 6 is an electric circuit diagram of the constant speed machine of the air conditioner of the above embodiment.

FIG. 7 is an electric circuit diagram of the boiler of the above embodiment.

FIG. 8 is a flowchart showing a control routine of the indoor unit.

FIG. 9 is a flowchart showing a control routine of the constant speed machine.

FIG. 10 is a flowchart showing a boiler control routine.

FIG. 11 is a flowchart showing a control routine of the outdoor unit.

[Explanation of symbols]

10A Indoor unit (first air conditioner) 11A Outdoor unit (first air conditioner) 10B, 10C Constant speed machine (second air conditioner) 11B, 11C Outdoor unit (second air conditioner) 12 Boiler (heat source machine) 55A, 55B, 55C Communication line (communication means) 110A, 110B Outdoor air temperature thermistor (outdoor temperature detection means)

Claims (3)

[Claims] 1. An outdoor temperature detecting means for detecting an outdoor temperature, and a state variable that a user who uses the room feels comfortable based on the detected outdoor temperature, and based on the obtained state variable. An air conditioner comprising: a control unit that controls the air conditioning in the room. 2. A first air conditioner, a second air conditioner, a heat source device for supplying hot water for air conditioning to at least the first air conditioner and the second air conditioner at the time of heating operation. Between the first air conditioner and the heat source device and the second
A communication means for communicating data between the air conditioner and the heat source device, and an outdoor temperature detecting means provided in the first air conditioner and the heat source device for detecting an outdoor temperature. The air conditioner system according to claim 1, wherein the first air conditioner has an outdoor temperature that is communicated by the outdoor temperature detecting means and the communication means provided in the first air conditioner and is provided in the heat source device. Based on at least one of the outdoor temperatures detected by the detection means, a state variable that a user who uses the room feels comfortable is obtained, and air conditioning in the room is controlled based on the obtained state variable. The air conditioner is based on at least one of the outdoor temperature communicated by the communication unit and detected by the outdoor temperature detection unit provided in the first air conditioner and the heat source unit. An air conditioning system characterized in that a state variable that a user who uses the room feels comfortable and that the air conditioning in the room is controlled based on the obtained state variable. 3. A first air conditioner, a second air conditioner, a heat source device for supplying hot water for air conditioning to at least the first air conditioner and the second air conditioner at the time of heating operation. Between the first air conditioner and the heat source device and the second
Communication means for communicating data between the air conditioner and the heat source device, and an outdoor temperature detection for detecting an outdoor temperature provided in any one of the first air conditioner and the heat source device. An air conditioning system comprising: a first air conditioner, wherein the outdoor temperature detecting means is a first air conditioner;
When the air conditioner is installed, the outdoor temperature detected by the outdoor temperature detecting means, and when the outdoor temperature detecting means is installed in the heat application device, communication is performed by the communication means and the outdoor temperature is detected. Based on the outdoor temperature detected by the temperature detecting means, a state variable that a user who uses the room feels comfortable is obtained, and the air conditioning of the room is controlled based on the obtained state variable. The machine determines a state variable that a user who uses the room feels comfortable based on the outdoor temperature that is communicated by the communication means and that is detected by the outdoor temperature detecting means, and determines the indoor state based on the obtained state variable. An air conditioning system characterized by controlling the air conditioning of.