JPH0774701B2 - Air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner including a sensor switch for changing a set temperature according to a user's feeling.

[Conventional technology]

FIG. 5 is a circuit diagram of a conventional air conditioner equipped with this kind of sensory switch (see Japanese Patent Application No. 60-229071). In the figure, 1 is an operation switch, 2 is a semiconductor temperature sensitive resistance element such as a thermistor for detecting the room temperature of a room to be air-conditioned, and 3 is a temperature sensing resistance element which changes according to the detection signal, that is, the room temperature. A / to convert the resistance value of 2 into a digital value
D (analog / digital) converter, 4 is a switch unit having a plurality of sense switches for changing the set temperature according to the sense of the user, 5 is a microcomputer having means for changing the set temperature, input It has a circuit 6, a CPU (central processing unit) 7, a memory 8 and an output circuit 9. Ten
Is a compressor of a refrigerant circuit controlled by a signal from its output circuit 9.

FIG. 6 shows the configuration of the switch section 4. The switch section 4 is provided with a sensation switch 4a that is operated when feeling that it is hot and a sensation switch 4b that is operated when feeling that it is cold. .

Next, the operation will be described with reference to the flowchart of FIG. This flow chart includes a program for changing the set temperature stored in the memory 8 of the microcomputer 5 in FIG. 5, and here, the case of heating operation will be described.

When the operation switch 1 shown in FIG. 5 is turned on, the operation of the flowchart shown in FIG.
The initial setting temperature is set with. Next, in step 102, the temperature sensing resistor element 2 detects the room temperature, the detection signal is input to the microcomputer 5, and in step 103, the set temperature is compared with the room temperature. Then, a control signal is output from the output circuit 9 in accordance with the operation mode, and the compressor 10 is turned on and off in steps 104 and 105. The following steps 106 to 109 show a flowchart for changing the set temperature, and when it is determined in step 106 that there is an input from the sense switches 4a and 4b,
In step 107, it is determined whether the switch 4a is input when it is hot or the switch 4b is input when it is cold. If it is determined in this step 107 that the input is from the switch 4a when it is hot, the process proceeds to step 108 and the set temperature is changed from the current set temperature by a certain value based on the detected room temperature at that time, and is lowered by, for example, 2 deg.
Also, when it is determined that the input from the switch 4b when it is cold, the process proceeds to step 109 and the current set temperature is changed to a constant value based on the detected room temperature at that time.
eg raise. Then, from the next time, the operation from step 102 is performed again based on the changed set temperature, and the start and stop of the compressor 10 are controlled. In this way, the compressor 10 is controlled, and the indoor temperature is controlled so that the new set temperature is changed according to the feeling of the user.

[Problems to be solved by the invention]

However, in the air conditioner as described above, even when the sense switches 4a and 4b are operated when it feels hot or cold, the set temperature is based on the detected temperature in the room at that time. Since it is only changed by a fixed value,
Especially when the room temperature is extremely high or low, you have to operate the sensory switches 4a, 4b many times until it reaches a comfortable environment temperature, and when the room temperature is almost moderate, change the room temperature slightly. However, in this case, operating the sense switches 4a and 4b causes a large change in the set temperature.

The present invention has been made to solve such a problem, and it is possible to control a comfortable indoor temperature with a small number of operations of the sensory switch, and to slightly change the indoor temperature in an environment of moderate temperature. The purpose is to provide an air conditioner capable of

[Means for solving problems]

The air conditioner of the present invention includes a temperature detector for detecting the indoor temperature, sensor switches that are operated when the user feels hot and cold, and a set temperature that is changed when the sensor switches are operated. And a determining means for determining the change range of the set temperature based on the input signal from the operated sense switch and the input signal from the temperature detector at that time.

[Action]

When each of the sensory switches is operated in hot or cold, the determining means determines the change range of the set temperature based on the input signal from the operated sensory switch and the input signal from the temperature detector at that time, The room temperature is controlled according to the set temperature changed according to the change range. Therefore, when the room temperature is extremely high or low, the change range of the set temperature can be widened by operating each sensory switch, and the room temperature can be slightly changed in a moderate temperature environment. .

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing the basic configuration. In the figure, 11 is a temperature detector for detecting the indoor temperature, 12 is a changing means for changing the set temperature when each of the sensory switches 4a, 4b of the switch section 4 is operated. , 13 are sensor switches 4 whose change width is operated.
The changing means 12 and the deciding means 13 are deciding means for deciding based on the input signals from the a and 4b and the input signal from the temperature detector 11 at that time. The change width determining means 13 has a storage unit (not shown), and the change width data as shown in FIG. 2 is stored in this storage unit. A curve A in FIG. 2 shows data when the sensation switch 4a is operated when it is hot, and a curve B shows data when the sensation switch 4b is operated when it is cold. The other structure is the same as that shown in FIG. 5 of the related art.

Next, the basic operation of the air conditioner configured as described above will be described with reference to the flowchart of FIG.

When the operation switch is turned on as in the conventional case, the operation of the flowchart starts as shown in FIG.
At 101, the default temperature is set. Then in step 102 the room temperature detection signal detected by the temperature detector 11 is input, in step 103 the set temperature and room temperature are compared, a control signal is output according to the operation mode, step 104,
At 105, the compressor is turned on and off. The next step 106 to step 113 is the flow of the operation for changing the set temperature, and if it is determined in step 106 that there is an input from the sense switches 4a and 4b, then in step 107 the sense switch 4a when it is hot Is input or the input is made from the sensor switch 4b when it is cold. If it is determined in step 107 that there is input from the switch 4a when it is hot, step 11
At 0, the change width of the set temperature is obtained from the characteristic curve A of the change width at room temperature shown in FIG. 2, and at step 112, the set temperature is changed by the change width from the current set temperature. The room temperature change width in FIG. 2 is smaller when the room temperature is lower and is larger when the room temperature is higher, when the signal from the sensor switch 4a when the temperature is hot is input. If it is determined in step 107 that the signal from the cold sense switch 4b has been input, step
At 111, the change width is obtained from the characteristic curve B of the room temperature change width shown in FIG. 2, and at step 113, the set temperature is changed from the current set temperature by the change width. Here, as shown in FIG. 2, the room temperature change range when the signal from the sensory switch 4b is input in the cold is larger as the room temperature is lower and smaller as the room temperature is higher. Then, from the next time, the operation from step 102 is performed again at the set temperature changed as described above, and the compressor is turned on and off so that the set temperature and room temperature become constant, and the environment becomes comfortable. Controlled.

FIG. 4 is an explanatory diagram showing a change in room temperature when a heating operation is specifically performed based on the basic operation described above. Here, the rising state and the case where the room temperature is low and the room temperature is high are shown, and the curve C is the set temperature and the curve D is the room temperature. When the heating operation is started with the initial set temperature (here, 20 [℃]) as the target, if there is a signal input from the switch 4b when it is cold when the set temperature is reached, the room temperature (20 [℃] ] As a standard, and the set temperature is increased by the room temperature change width (about 2.2 deg) obtained from the curve B in FIG.
In this case, this new set temperature is 20 + 2.2 = 22.2 [° C]
Becomes If the user is satisfied in the room temperature environment of the set temperature at this time, the compressor is repeatedly driven and stopped based on the set temperature, and the room temperature is automatically controlled to the set temperature.
Next, in this environment, when the user feels heat and operates the switch 4a when it is hot, the room change width obtained by the curve A in FIG. 2 is subtracted from the current set temperature based on the room temperature at that time. Lower the set temperature. This new set temperature is 22.2-1.
8 = 21.4 [° C]. In this way, the temperature change width is determined from the room temperature at that time, so that it is possible to perform highly accurate control in accordance with the user's feeling, as compared with the conventional case where the change width is set to a constant value. Also, the room temperature is, for example, 16
Switch when cold when [℃] and heating environment are low
When there is a signal input from 4b, the set temperature is increased by the room temperature change width obtained from the curve B in FIG. 2, but this change width is 3
It is as large as [deg], and you can approach your favorite environment with a single operation of the sense switch 4b. On the contrary, even if the signal from the switch 4a is input when the room temperature is low and the temperature is high, the room temperature change range is the second
It is as small as about 0.5 deg from the curve A in the figure, the change in the set temperature is small, and it does not largely deviate from the comfortable environment.
This is also the case when the room temperature is high, and when the switch is hot
The room temperature change range is large when there is a signal input from 4a, and the room temperature change range is small when there is a signal input from the switch 4b when it is cold. It does not come off greatly.

All of the above have described the heating operation, but in the case of the cooling operation, the on / off command of the compressor may be reversed.

In the above embodiment, the case where the two sensor switches 4a and 4b that are operated when it feels hot and when it feels cold is described, but further, for example, the sensor switch operated when feeling comfortable. Even if the temperature is added, by setting the room temperature at that time to the set temperature, it is possible to control the environment more closely according to the sense of the user. Also,
I mentioned room temperature control by starting and stopping the compressor,
The same applies to the case of controlling the rotation speed of the compressor. Further, the present invention can be applied not only to an air conditioner using a refrigerant cycle but also to a combustion type, electric heating type or hot water type heating device, and similar effects can be obtained.

〔The invention's effect〕

As described above, according to the present invention, when each of the sensory switches is operated when the user feels it is hot or cold, based on the signal from the sensory switch and the detection signal of the room temperature at that time. Since the change range of the set temperature is determined, the comfortable indoor temperature can be controlled with a small number of sensor switch operations, and the indoor temperature can be changed slightly in a moderate temperature environment. There is an effect that it is possible to easily provide an environment that suits the user's intention without largely deviating from the environment.

[Brief description of drawings]

1 to 4 are views showing an embodiment of the present invention.
FIG. 1 is a block diagram showing a basic circuit configuration, FIG. 2 is a characteristic curve diagram showing data of room temperature change width, FIG. 3 is a flowchart showing basic operation, and FIG. 4 is a case where heating operation is specifically performed. Fig. 5 is a circuit diagram of a conventional air conditioner, Fig. 6 is a diagram of the switch section of Fig. 5, and Fig. 7 shows the operation of the circuit configuration of Fig. 5. It is a flowchart shown. 4a, 4b ...... Sensor switch 11 ...... Temperature detector 12 ...... Change means 13 ...... Determination means The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A temperature detector for detecting an indoor temperature, each sensory switch operated when feeling that it is hot and cold, and a set temperature when these sensory switches are operated. And a changing unit for changing the set temperature based on the input signal from the operated sense switch and the input signal from the temperature detector at that time. Is when the signal is input from the sensor switch that is operated when it feels hot, when the room temperature is higher, the change range is larger, and when the signal is input from the sensor switch that is operated when it feels cold. The air conditioner is characterized in that the change range is increased as the indoor temperature is lower.