JPH04203743A - Device and method for controlling operation of air-conditioner - Google Patents

Abstract

PURPOSE:To prevent the occurrence of overcooling and to prevent the occurrence of an evil, such as air-conditioningitis, owing to continuous operation by a method wherein control is effected so that, through the change of a control temperature according to the change of an open air temperature, a difference between an indoor temperature and an open air temperature is prevented from an increase. CONSTITUTION:An open air temperature detected by am open air temperature detecting means 2 is compared with a set temperature set by a temperature setting means 1 by means of a control temperature deciding means 4, and a control temperature is changed from a set temperature according to the open air temperature. A cooling and a heating effect from a point of view of bodily sensation are improved through the change of a control temperature decided by the control temperature deciding means 4 according to a lapse of an operation time detected by an operation time detecting means 7. Namely, a control temperature is changed so that a difference between a room temperature and the open air temperature is adjusted to a constant value even when the open air temperature is changed. A control temperature is decided so that a difference between a set temperature set at an initial stage and the open air temperature is held at a constant value, and based on a deciding result, a room temperature is controlled. This constitution and method prevent the occurrence of overcooling and overheating and the occurrence of an evil, such as air-conditioningitis, and produces an energy-saving effect through provision of a cooling and a heating feeling from a point of view of bodily sensation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an operation control device for an air conditioner and a control method thereof.

Conventional technology Traditionally, summer cooling sickness due to over-operation of air conditioners (too much power) and wasted energy due to overuse of electricity have become social and household problems, and air conditioners with manually set temperature settings have become a problem. Various automatic temperature control functions have been devised to prevent the temperature from becoming too low or too high during heating.

FIG. 7 is a block diagram of a conventional temperature control device. 7th
In the figure, l is a temperature setting means for manually setting the desired temperature, 2 is an outside temperature detection means for detecting the outdoor temperature, 3 is a room temperature detection means for detecting the indoor suction temperature, and 4 is the control target temperature of the air conditioner. control temperature determination means for determining 5
is a compressor operation control means that controls the operation of the compressor 6 by comparing the room temperature detected by the room temperature detection means 3 and the control target temperature determined by the control temperature determination means 4.

Normally, the set temperature set by the user using the temperature setting means 1 becomes the control temperature directly by the control temperature determining means 4 and is compared with the room temperature detected by the room temperature detecting means 3 to control the operation of the compressor. When the user starts using the air conditioner, he/she wants to cool or heat the air conditioner quickly, so the set temperature should be much lower or higher than the room temperature at the start of operation (i.e., approximately equal to the outside temperature). Once the room temperature reaches the set temperature and stabilizes, it tends to become too cold or too warm. Even if the user wants to readjust the set temperature appropriately, it is difficult to know how many times the temperature should be set, and the outside temperature changes considerably even during the day, so the user has to readjust the setting many times. There is the inconvenience of not being able to do so.

Therefore, a control method generally called automatic operation is used in which the set temperature is automatically determined and determined from the outside temperature detected by the outside temperature detection means 2 and the room temperature detected by the room temperature detection means 3 at the start of operation. (Fig. 8 shows the state of the operation control). Even in this case, the set temperature is determined only at the start of operation or every few hours. Further, the set temperature does not change over time and is fixed at a constant value.

Problems to be Solved by the Invention However, as mentioned above, if the set temperature is determined only once at the start of operation or every few hours, it is not possible to follow changes in the outside temperature throughout the day, and the air conditioner cannot be operated continuously in a room. I'm doing it,
If you frequently go in and out of the room, if there is a large difference between the room temperature and the outside temperature, your body will not be able to follow the changes, resulting in what is called air conditioner disease, or the set temperature will remain at a constant low value even if the outside temperature rises. When the air conditioner is running, the compressor operates continuously to keep the room temperature at the set temperature, which consumes a lot of power.

Also, due to the physiological sensory characteristics of humans, if the room temperature is kept constant, it will gradually become difficult to feel coolness or warmth, so it is necessary to set the temperature considerably lower or higher than the outside temperature. There is also an issue.

Means for Solving the Problems The present invention provides an outside temperature detection means for detecting an outside temperature, a temperature setting means for setting a desired temperature, and an outside temperature detected by the outside temperature detection means and a temperature set by the temperature setting means. A control temperature determination means that determines the control temperature by comparing the set temperature that has been set, and a room temperature detected by a room temperature detection means that detects the control temperature and the indoor suction temperature, so that the control temperature is determined. This is an air conditioner operation control device including a compressor operation control means for controlling the operation of the compressor.

The present invention also provides a temperature setting means for setting a desired temperature, an operation time detection means for detecting the operation time of the compressor, and changing the set temperature according to the elapse of the operation time,
A compressor that controls the operation of the compressor to reach the control temperature by comparing the control temperature determination means to determine the control temperature and the room temperature detected by the room temperature detection means for detecting the indoor suction temperature with this control temperature. This is an air conditioner operation control 'fS device comprising an operation control means.

Effect of the present invention With the above-described configuration, when the outside temperature changes while the air conditioner is operating, the control temperature is changed accordingly, and the control is performed so that the difference between the room temperature and the outside temperature does not become large, thereby preventing excessive cooling. - It is possible to prevent harmful effects such as air conditioner sickness caused by continuous operation of the comb, and also to prevent wasteful use of electrical energy.

In addition, by detecting the operating time and changing the control temperature over time, it gives the user a sense of coolness or warmth without lowering or increasing the average value compared to when the control temperature is constant. This has the effect of energy saving.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

First, an embodiment of the operation control device of the present invention will be explained with reference to the block diagram shown in FIG.

In FIG. 1, 1 is a temperature setting means, 2 is an outside temperature detection means, 3 is a room temperature detection means, 4 is a control temperature determination means, 5 is a compressor operation control means, 6 is a compressor, and 7 is an operation time detection means. It is.

The outside air temperature detected by the outside air temperature detection means 2 and the set temperature set by the temperature setting means 1 are compared by the control temperature determining means 4, and the control temperature is changed from the set temperature in accordance with the outside air temperature.

Further, the control temperature determined by the control temperature determining means 4 is changed in accordance with the elapse of the operating time detected by the operating time detecting means 7 to enhance the perceived cooling or heating effect.

FIG. 2 shows an embodiment of the first control method of the present invention, in which the control temperature is changed so that the difference from the room temperature is always constant even if the outside temperature changes. That is, the control temperature is determined so as to keep the difference between the initially set temperature and the outside temperature constant, and the room temperature is controlled based on the determined temperature. Of course, this temperature difference can be changed by the temperature setting means 1. Furthermore, at the time of starting, the initial setting temperature may not be used as the control temperature, but a lower temperature may be used as the control temperature for starting.

FIG. 3 shows an embodiment of the second control method of the present invention, in which the difference between the outside temperature and the control temperature increases as the outside temperature increases, and the difference between the outside temperature and the control temperature decreases as the outside temperature decreases. This changes the control temperature. The control temperature at the time of starting does not necessarily have to match the set temperature; for example, the control temperature may be started from a higher temperature. This has the effect of improving the situation where the control temperature completely slides to the outside temperature and the change in the room temperature becomes too large.

FIG. 4 shows an embodiment of the third control method of the present invention, in which even if the outside temperature is constant, the control temperature is gradually lowered after the start of operation to increase the cooling effect, and then gradually raised. By changing the temperature periodically such as increasing or decreasing the temperature, it is possible to prevent the temperature from getting too cold and to obtain a refreshing feeling when the temperature drops.

FIG. 5 shows an embodiment of the fourth control method of the present invention, in which the control temperature is rapidly and greatly reduced at the start of operation, then slowly increased over time, and then rapidly reduced again. By performing the so-called "fluctuation control", it is possible to obtain a more refreshing feeling than in the embodiment of the third control method.

Figure 6 shows an embodiment of the fifth control method of the present invention, in which the control temperature is kept at L, lower than the set temperature immediately after the start of operation, and is gradually raised as the operation time elapses. Since the temperature rises slowly, the user hardly notices the temperature rise and can save energy.

In addition, although the above embodiment has been described with reference to the operation during cooling operation, the same is true during heating operation except that the direction of temperature change is reversed. Further, although the control temperature is changed in an analog manner, it may be changed digitally in a stepped manner.

Further, although the illustration shows that the control temperature is changed approximately around the set temperature, it may be shifted to one side.

Effects of the Invention As described above, the present invention changes the control target temperature of an air conditioner according to changes in outside temperature and also changes it according to the elapse of operating time, thereby preventing overcooling or overheating. In addition to eliminating IJT and preventing harmful effects such as air-conditioning sickness, energy-saving effects can be obtained by enjoying the sensation of coolness and warmth.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an air conditioner operation control device showing an embodiment of the present invention, FIG. 2 is a time diagram showing an embodiment of the operation control method of the present invention, and FIG. 3 is a block diagram of an air conditioner operation control device showing an embodiment of the present invention. FIG. 4 is a time diagram showing an embodiment of the operation control method of the present invention. FIG. 5 is a time diagram showing an embodiment of the operation control method of the present invention. 6 is a time diagram showing an embodiment of the operation control method of the present invention, FIG. 7 is a block diagram of a conventional operation control device, and FIG. 8 is a time diagram showing a conventional control method. be. l...Temperature setting means, 2...Outside temperature detection means, 3.
... Room temperature detection means, 4... Control temperature determination means, 5...
- Compressor operation control means, 6... Compressor, 7... Operating time detection means. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Time Figure 6 Figure 8 Figure 7

Claims (7)

[Claims] (1) an outside temperature detection means for detecting the outside temperature; a temperature setting means for setting a desired temperature; and comparing the outside temperature detected by the outside temperature detection means and the set temperature set by the temperature setting means; The control temperature determination means for determining the control temperature compares the control temperature with the room temperature detected by the room temperature detection means for detecting the indoor suction temperature, so that the control temperature is reached.
1. An operation control device for an air conditioner, comprising a compressor operation control means for controlling operation of a compressor. (2) The air conditioner operation control device according to claim 1, wherein the control temperature is determined so that the difference between the predetermined temperature derived from the initially set temperature and the outside temperature is always kept constant. control method. (3) Determine the control temperature so that the difference between the predetermined temperature derived from the initially set temperature and the outside air temperature increases as the outside air temperature rises, and decreases as the outside air temperature falls. 2. The method of controlling an operation control device for an air conditioner according to claim 1, further comprising: making a determination. (4) A temperature setting means for setting a desired temperature, an operating time detecting means for detecting the operating time of the compressor, and a control temperature for changing the set temperature as the control temperature according to the elapse of the operating time. The determination means compares this control temperature with the room temperature detected by the room temperature detection means that detects the indoor suction temperature.
An operation control device for an air conditioner, comprising: a compressor operation control means for controlling the operation of the compressor so that the control temperature is achieved. (5) The control method for an air conditioner operation control device according to claim 4, wherein the control temperature determining means periodically changes the set temperature as a center according to the elapse of the operating time. . (6) The air conditioner according to claim 5, wherein the control temperature determining means periodically changes the temperature by slowly increasing it when increasing the temperature and decreasing it rapidly when decreasing the temperature. control method for the operation control device. (7) The operation control device for an air conditioner according to claim 4, wherein the control temperature determining means sets the control temperature to a temperature lower than the set temperature immediately after the start of operation, and then gradually increases the temperature. control method.