JPS61173041A - Air conditioner - Google Patents

Abstract

PURPOSE:To always keep an indoor temperature in a condition in which a human body feels comfortable by a method wherein a control temperature of an air conditioner is changed over under a difference between a room temperature and a wall temperature and corrected thereto. CONSTITUTION:For example, in case of air heating condition,an initial set temperature Ts for an air conditioning control part 6 is applied. Although the air temperature TA is relatively fast increased as the heating operation is started, the wall temperature is delayed in its increasing and a cold feeling is applied in response to the radiation heat. In case that a difference between the air temperature TA and the radiation heat TR, that is, a difference DELTAT of an output of the comparator 3 is more than the specified value, correction is performed by a calculator 4 for the initial set value TS given by the setting unit 5 and then a little higher temperature control value TC is applied to the air conditioning control part 6. When the wall temperature is increased to cause a difference between the air temperature TA and the radiation heat TR becomes less than the specified value, the initial set value TS is applied to the air conditioning control part 6 from the calculator 4. When the wall temperature is increased and a difference between the air conditioning temperature TA and the radiation heat TR is less than the specified value, the lower temperature control value TC is applied to the air conditioning control part 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an air conditioner, and more particularly to an air peace device suitable for optimally controlling sensible temperature.

(Technical background of the invention and its problems) Conventional air conditioners detect only the indoor hot water temperature, compare it with the set temperature, turn on and off the air conditioner, and perform variable capacity control. ! The temperature of the lagoon was controlled to a certain level.

It is generally well known that the sensible temperature, that is, the temperature felt by the human body, is affected not only by the air temperature but also by the radiant temperature from surrounding objects into the living space.
Even if the room temperature is the same, if the wall temperature is low, the amount of heat dissipated by radiation increases and the human body feels colder.

Therefore, at the start of heating, the rise in wall temperature is slower than the rise in indoor air temperature, so by raising the air temperature higher than the target set value, the desired warmth FA@ can be obtained, and after a certain period of time, the wall temperature rises. If this happens, you can achieve a certain level of heating by lowering the room temperature so that it does not become too hot. The same is true for cooling, and by setting the air temperature in consideration of changes in wall temperature, a constant feeling of cooling can be obtained.

However, conventionally, room temperature control that takes such sensible temperature into account has been carried out by residents adjusting air conditioning set values based on their own bodily sensations. In other words, in order to obtain the desired sensible temperature, it was necessary to frequently change the set temperature of the air conditioner.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air conditioner that eliminates the problems of the prior art described above and that makes it possible to maintain indoor temperature at a visually comfortable state at all times.

[Summary of the invention]

In order to achieve the above object, the present invention includes a first sensor that detects air temperature and a second sensor that detects radiant temperature from a wall surface.
a comparator that calculates the deviation of the output of the second sensor, and a control unit that controls the air conditioner to adjust the room temperature.
An air conditioner comprising: a setter that provides a temperature set value for the control unit; and a calculator that corrects the temperature set value from the setter based on the deviation obtained by the comparator. This is what we provide.

(Example of the invention) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an air conditioner according to an embodiment of the present invention. In the same figure, the room temperature sensor is the indoor air I! Detect degree TA. Radiant sensor V2 is the radiant heat T of the wall surface
Detect R. Comparator 3 is a room temperature sensor and radiation sensor 2
After receiving each output signal, the air temperature is 11fT and the radiant heat T
Calculate the difference ΔT between R.

The setting device 5 is used to initially set the room temperature control value 8, and transmits a set value operated by the user or a programmed value. The calculator 4 adds the comparison result of the comparator 3 to the initial setting value T from the setting device 5 as a correction Φ, and obtains the actual temperature control value T. Calculate.

The air conditioning control unit 6 receives the temperature control value T from the calculator 4. Based on the signal, the compressor and blower of the air conditioner (not shown) are controlled to be turned on and off, and to switch their capacity.

Now, in this configuration, the operation will be explained using the case of heating operation as an example, according to the control characteristic diagram of FIG. 2. Incidentally, in Fig. 2, the curve [iia is the actual wall temperature, the curve C is the detected radiant heat TR1 of the radiation sensor 2, the curve C is the room temperature when using the conventional control system, the curve d is the air temperature TA detected by the room temperature sensor 1, The curve e is the temperature controlled by an air conditioner (not shown), and ΔK is the air fAr! corresponding to the output from the comparator 3.
This is the deviation between XTA and radiant heat TR.

At the initial stage of heating, the temperature control signal to the air II control unit 6 is given an initial setting value T8, and the I! ! The cell is started. Air temperature T as heating starts
A rises relatively quickly, but on the other hand, the wall temperature rises slowly, making you feel chilly due to radiant heat. Therefore, if the difference between the air temperature TA and the radiant heat TH, that is, the deviation ΔT that is the output of the comparator 3, is greater than a certain value,
The initial setting value T given from the setting device 5 is corrected by the computing device 4, and a higher temperature control value TC is given to the air conditioning control section 6. As a result, the air temperature TA is controlled to be higher than in the past, which compensates for the chilly feeling caused by radiant heat dissipation.

After that, the wall temperature rises and the air temperature [ha and radiant heat TR
When the difference becomes less than a certain value, the air conditioning control 81 is
An initial setting value T8 is given to s6. As a result, the air temperature TA is controlled to the initial setting value.

Furthermore, if heating operation continues, the wall temperature will rise and the radiant heat T
R is also rising. As a result, the amount of heat dissipated from the human body due to radiation decreases, so the body S temperature becomes too hot. Therefore, when the difference between the air temperature TA and the radiant heat TR, that is, the deviation ΔT from the comparator 3, becomes less than a certain value, the calculator 4 corrects the initial setting value T given by the setting device 5. is added to give a lower temperature control value Tc to the air conditioning control section 6. As a result, the air temperature ITA decreases,
In addition to preventing the sensible temperature from becoming too hot, it is possible to eliminate wasteful use of an air conditioner (not shown) that performs more heating than necessary.

As a result of the above-mentioned control, the difference in sensible temperature due to radiation caused by the difference between air temperature and wall temperature after the start of heating operation and after the elapse of time can be automatically adjusted without the user having to adjust the temperature setting device. This makes it possible to perform simple and comfortable air-mi control. On the other hand, once the wall temperature has stabilized, there is no need to generate more heating capacity than necessary, which is also effective from the perspective of energy conservation.

In addition, in the above embodiment, 11'IIJ for the set temperature
Although we have illustrated the case where there are three control modes: a mode that corrects the fourth degree higher, a mode that does not correct it, and a mode that corrects it lower, it is also possible to simplify the configuration by organizing the control modes into two. It is also possible to perform more detailed air conditioning control.

Furthermore, when correcting the initial setting value T8 based on the difference ΔT^ between the air temperature T and the radiant temperature TR, it is better to provide a certain amount of hysteresis as shown in the characteristic diagram of Figure 3. Hunting can be prevented and smooth control can be performed.

In addition, although the above-mentioned embodiment was explained taking the case of heating as an example, it goes without saying that the present invention can be applied in exactly the same manner even during cooling.

〔Effect of the invention〕

As described above, according to the present invention, the sensible temperature due to the difference between the room temperature and the wall temperature is corrected by changing the IUA temperature of the air conditioner, and a constant cooling temperature is maintained! ! It is possible to obtain an air conditioner that not only ensures a roomy feeling but also prevents excessive heating or cooling, which is effective in terms of energy saving.

4゜Personal explanation of the drawings Fig. 1 is a block diagram of an air conditioner according to an embodiment of the present invention, Fig. 2 is a control characteristic diagram for explaining the configuration of Fig. 1, and Fig. 3 is a temperature setting diagram. FIG. 3 is a characteristic diagram showing an example of correction.

1... Room temperature sensor, 2... Radiation sensor, 3... Comparator, 4... Arithmetic unit, 5... Setting device, 6... Empty lol
i control section.

Applicant's agent: Boar Part 2 diagram eiI&! Figure 3

Claims (1)

[Claims] 1. A first sensor that detects air temperature, a second sensor that detects radiant temperature from a wall surface, and a deviation between the outputs of the first sensor and the second sensor is calculated. a comparator, a control unit that controls the air conditioner to adjust the room temperature, a setter that provides a temperature set value for the control unit, and a temperature set value from the setter based on the deviation obtained by the comparator. An air conditioner characterized by comprising: a computing unit for correcting. 2. The air conditioner according to claim 1, wherein the computing unit corrects the temperature setting value in a direction that increases the capacity of the air conditioner when the deviation is greater than a certain value. 3. The air conditioner according to claim 1, wherein the computing unit corrects the temperature setting value in a direction that lowers the capacity of the air conditioner when the deviation is below a certain value.