JPS58102047A - Air conditioning equipment - Google Patents

Abstract

PURPOSE:To perform agreeable air conditioning from the start of air conditioning operation by a method wherein set temperature is changed based upon the detected result of the difference between room temperature and the set temperature. CONSTITUTION:Room temperature signals from a room temperature sensor 4 are transmitted through a temperature comparator 5 to compare room temperatures with the set temperature to a room temperature setter 6. When the difference between the initial room temperature (a) and the set temperature (b) exceeds a fixed value (about 5 deg.C), the room temperature setter 6 resets the set temperature (b) to the set temperature (c), which is different from the set temperature (b) by about 2-3 deg.C (higher in case of heating as illustrated in the accompanying figure and lower in case of cooling). When room temperature reaches the OFF point (d) of the set temperature (c), a compressor 7 is turned OFF. The room temperature setter 6 detects the first OFF action of the compressor 7 counting from the start thereof and sets back the set temperature (c) to the original set temperature (b).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for an air conditioner, and an object of the present invention is to provide comfortable heating and cooling.

Conventional air conditioners have no control to change the set temperature, so as shown in Figure 4, after the air conditioner starts operating, if the room temperature reaches the OFF point d' near the set temperature C', The heat source was stopped, and then when the oN point e' was reached, the heat source was started again and the same operation was repeated thereafter. For this reason, there was a drawback that the room temperature reached the set temperature from a low state during heating, and then the heat source was turned off, making the occupants feel cold when heating started. (On the other hand, if the room temperature changes from a high state during cooling, you feel hot.) In general, people's sense of heat and cold is not only affected by the indoor temperature, but also by the radiant heat from the walls of the room. It is. In other words, the above drawback tends to occur when the room temperature reaches the set temperature for the first time after the air conditioner starts operating. It represents feeling cold due to radiation. However, after a certain amount of time elapses after the air conditioner starts operating, the wall temperature also rises, so residents can be satisfied with the above settings, and for this reason, residents often do not change the set temperature.

In this way, even if the set temperature is the same, humans perceive it differently after the air conditioner starts operating and after a certain amount of time has passed, but it is troublesome for residents to change the set temperature each time.

The present invention solves the above-mentioned conventional drawbacks by detecting the difference between the room temperature and the set temperature and changing the set temperature. An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, 1 is an air conditioner main body, which has a heat exchanger 2, a blower 3, etc. inside. A thermostat (not shown) installed indoors or inside the main body 1 is equipped with a sensor 4 that detects the room temperature, and the detected room temperature signal is sent to a temperature comparator 5 that compares the room temperature with a set temperature. The temperature is transmitted to the indoor temperature setting device 6 via. In other words, the indoor temperature setting device 6
Normally, the room temperature is set according to the resident's preference, but when the heating operation of the air conditioner body 1 starts, the room temperature detected by the sensor 4 is compared with the set temperature set by the resident. 6, and the difference is a constant value (
If the room temperature is higher than the resident's preferred temperature, the room temperature setting device 6 resets the room temperature to be 2 to 3 dogs higher than the resident's preferred temperature. Further, the indoor temperature setting device 6 detects the first turning off of the compressor 7 and returns the set temperature to the desired room temperature originally set by the occupant.

Therefore, as shown in Fig. 3, after the start of heating operation, if the difference between the initial room temperature a and the temperature set by the occupant is greater than a certain value, the set temperature will be automatically increased by 2 to 3 de from b.
g is reset to a higher C. For this reason, the feeling of cold radiation from the wall surface that occurs after the heating operation starts is caused by the room temperature being 2 to
This is covered by increasing the temperature by 3 degrees. After that, when the room temperature reaches the set temperature COOFF point d, the set temperature returns to b set by the occupant, and the setting of the air conditioner body 1 b is turned on and off, and around this time, the temperature inside the room is The temperature of the wall surface also rises and there is no feeling of cold radiation, so residents can enjoy the comfort of the originally preferred temperature setting.

Although the example above has mainly been explained during heating, exactly the same thing applies to cooling as well. That is, during cooling, if the difference between the initial room temperature and the set temperature is above the above-mentioned certain value, the same effect can be obtained by setting the set temperature 2 to 3 degrees lower.

As is clear from the above explanation, since the air conditioner of the present invention detects the difference between the room temperature and the set temperature and changes the set temperature, a feeling of comfort can be provided both at the start of air conditioning operation and afterward. It is.

[Brief explanation of drawings]

Fig. 1 is a schematic cross-sectional view showing one embodiment of the air conditioner of the present invention, Fig. 2 is a flow rate control block diagram, Fig. 3 is a diagram showing the relationship between room temperature and time showing the effects of the same device, and Fig. 4 is a diagram showing the relationship between room temperature and time. The figure is a diagram showing the relationship between room temperature and time in a conventional air conditioner. 4...Room temperature sensor, 6...Indoor temperature IW
Setting device. Name of agent: Patent attorney Toshio Nakao (・1riki・1
Talented. Figure 1 Figure 13 Figure 4 g! lock

Claims (2)

[Claims] (1) A thermostat installed indoors or inside the main unit to control the room temperature, and an indoor temperature setting device that changes the set temperature when the room temperature reaches the set temperature from a state where the difference between the room temperature and the set temperature is a certain value or more. Air conditioner equipped with. (2) The air conditioner according to claim 1, wherein the indoor temperature setting device changes the set temperature when the room temperature reaches the set temperature for the first time after starting heating or cooling operation.