JPH10110995A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save energy in an air conditioner by providing it with the temperature variation of 1/f fluctuation and reducing the load in indoor air conditioning without giving uncomfortableness to human body. SOLUTION: This air conditioner can not only quicken control responsiveness but also realize the temperature variation of 1/f fluctuation, while keeping such condition that the set average room temperature is raised by 1 deg.C, being equipped with a memory 14a where a set temperature changing pattern such as that the indoor temperature variation at cooling comes to 1/f fluctuation and that it raises the average value of a set temperature by 1 deg.C and a set- quantity-of-air changing pattern including a blast stop mode are programmed in advance, a set temperature changing means 15a which changes the set temperature, according to the set temperature changing pattern and the set-quantity-of- air changing pattern that the memory 14a outputs, and a set-quantity-of-air changing means 18a which changes the set quantity of air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a home air conditioner,
The present invention relates to an air conditioner such as a commercial package air conditioner.

[0002]

2. Description of the Related Art Conventionally, temperature control of an air conditioner, for example, a home air conditioner has been performed so as to keep a set temperature constant. What fluctuates room temperature based on it is being devised.

[0003] This is because if a person is in a room for a certain period of time or longer, the user will not be conscious of coolness and warmth under the initially set thermal conditions due to thermal acclimation (accustomedness), and the feeling of comfort will be reduced. In order to prevent this, the temperature of the room is changed to give a stimulus to the occupant, and as a result, an air conditioner that the occupant feels comfortable is provided. Conventionally,
As this type of air conditioner, there is an air conditioner disclosed in JP-A-4-84058 or the like.

Hereinafter, the conventional air conditioner will be described with reference to the drawings. 13 is a schematic configuration diagram illustrating a refrigeration cycle of a conventional air conditioner, FIG. 14 is a control block diagram of temperature fluctuation control of the conventional air conditioner, and FIG. It is a time-lapse variation characteristic diagram. In FIG. 13, 1 is an outdoor unit of the air conditioner, and 2 is an indoor unit of the air conditioner. 3 is a variable capacity compressor that controls the capacity by changing the rotation speed and voltage. 4 is a four-way valve that switches between cooling operation and heating operation. 5 is an outdoor unit that exchanges heat between refrigerant and outdoor air. A heat exchange means, 6 is an outdoor expansion means composed of a capillary, an electric expansion valve, etc., 7 is an outdoor air blowing means which is composed of a fan motor and a fan and blows air to the outdoor heat exchange means 5, and has a compressor 3 and a four-way valve 4 , The outdoor heat exchange means 5, the outdoor expansion means 6, and the outdoor air blowing means 7
Is housed inside.

[0005] Further, 8 is an indoor heat exchanging means for exchanging heat between the refrigerant and the indoor air, 9 is an indoor expansion means which comprises an electric expansion valve or the like and controls the flow rate of the refrigerant by controlling the opening degree and the like. Reference numeral 10 denotes an indoor blower, which includes a fan motor and a fan, and blows air to the indoor heat exchanger 8. The indoor heat exchanger 8, the indoor expander 9, and the indoor blower 10 are provided.
Are housed inside the indoor unit 2.

Further, reference numeral 11 denotes an indoor temperature detecting means which is installed on an indoor wall surface or a suction port of the indoor unit 2 to detect the indoor temperature, and 12 comprises a display panel, a switch and the like, and a set temperature input for setting the indoor temperature to a desired temperature. Means 13 is an operation control device for controlling the operation of the air conditioner.

In FIG. 14, reference numeral 14 denotes a set temperature such as + 1 ° C. for 15 minutes → −1 ° C. for 10 minutes → ± 0 ° C. for 15 minutes so that the fluctuation power spectrum of the room temperature becomes 1 / f fluctuation. A memory in which a set temperature change pattern including a change width and a holding time is pre-programmed, and 15 is a memory which stores a set temperature set by the set temperature input means 12.
4 is a set temperature changing unit that changes according to the output from the control unit 4. Numeral 16 denotes a difference between the indoor temperature detected by the indoor temperature detecting means 11 and the set temperature output by the set temperature changing means 15, for example, the rotation speed of the variable capacity compressor 3, the flow rate of the refrigerant flowing through the indoor expansion means 9, and the like. Is a capacity control means for controlling the air conditioner to change the capacity of the air conditioner. The operation control device 13 includes:
As shown in FIG. 14, the memory 14, the set temperature changing means 1
5. Capability control means 16.

Here, the change range of the set temperature in the change pattern of the set temperature programmed in the memory 14 often takes a value within ± 1 ° C. which is generally called an appropriate room temperature change range.

The operation of the air conditioner configured as described above will be described below. First, the set temperature T _S is input by the set temperature input means 12, and the outdoor unit 1 and the entire indoor unit 2 are driven to perform a cooling operation. After the room temperature reaches T _S ° C and stabilizes, the set temperature changing means 15 changes the set temperature according to the set temperature change pattern output from the memory 14.

For example, the output of the memory 14 is + 1 ° C. · 15
In the case of minutes, the set temperature is changed to T _S +1. Therefore, a temperature difference of 1 ° C. occurs between the room temperature T _S and the set temperature T _S +1. The capacity control means 16 decreases the opening degree of the indoor expansion means 9 constituted by an electric expansion valve, for example, which reduces the number of revolutions of the variable capacity compressor 3 according to the temperature difference, thereby reducing the refrigerant flow rate. The room temperature is increased to T _s +1 by reducing the capacity of the air conditioner by such a method.

Next, after the elapse of the holding time in the set temperature change pattern, for example, 15 minutes, the output of the memory 14 is
The set temperature is changed to T _S −1 by 1 ° C. for 10 minutes,
The capacity control means 16 increases the capacity of the air conditioner and similarly lowers the room temperature to T _S -1.

As described above, the set temperature is changed based on the set temperature change pattern programmed in the memory 14, and the room temperature is changed by repeatedly raising and lowering the room temperature. Since it is proportional to 1 / f, that is, 1 / f fluctuation, it is possible to provide a temperature fluctuation that is acceptable to many residents.

[0013]

However, in the above-mentioned conventional configuration, the difference between the set temperature programmed in the memory 14 and the room temperature is about 1 to 2 ° C. even if the difference is large. The amount of change in the number of rotations of the variable compressor 3 and the degree of opening of the indoor expansion means 9 is relatively small, and there is a disadvantage that the speed of change in performance, that is, the speed of fluctuation of room temperature, is slow. For example, it takes 20 to 30 minutes to realize the fluctuation of the amplitude of about 1 ° C., so that there is a drawback that a minute change in room temperature cannot be created, and the change in room temperature cannot be sensed by a human body.

An object of the present invention is to solve the conventional problem and to realize a room temperature change rate that is large so that a human body can feel the room temperature change, and realizes a small 1 / f fluctuation room temperature change. . Further, it is an object of the present invention to provide an air conditioner that can obtain a cooling sensation effect without causing discomfort to the human body and obtain an equivalent thermal sensation even when the average room temperature rises by 1 ° C., and can save energy.

Further, in the above-described conventional configuration, for example, when the indoor air-conditioning load is very small, the temperature fluctuation control is performed from a state where the rotation speed and frequency of the variable capacity compressor 3 are very small. In many cases, a lower limit is set for the rotation speed or frequency of the compressor 3.
Although it is possible to increase the rotation speed or the frequency while the room temperature is decreasing in the temperature fluctuation control, it is difficult to decrease the rotation speed or the frequency while the room temperature is increasing. Therefore, when the temperature fluctuation control is performed from a small load, there is a disadvantage that the rotation speed or the frequency of the variable capacity compressor 3 increases on average, and conversely, the input increases.

[0016] The present invention solves the conventional problems.
An object of the present invention is to prevent the problem of an increase in the input by stopping the output of the memory and stopping the temperature fluctuation control when the indoor air-conditioning load is extremely small in realizing the temperature fluctuation of / f fluctuation.

Further, in the above-described conventional configuration, in order to allow the human body to feel the fluctuation of the room temperature, if the means for increasing the rotation speed or the frequency of the variable capacity compressor 3 is increased in order to accelerate the change in the room temperature, There is also a disadvantage that the rotation speed or the frequency is unnecessarily increased, the efficiency as a cycle is reduced, and the input is increased.

Another object of the present invention is to provide an air conditioner that can achieve further energy saving while realizing a temperature fluctuation of 1 / f fluctuation and does not cause discomfort to the human body.

[0019]

In order to achieve this object, the present invention provides a memory in which a set temperature change pattern and a set air volume change pattern are pre-programmed, wherein the set temperature average value after the change in the set temperature change pattern is equal to the set temperature. The present invention is characterized in that the mode is higher by 1 ° C. than the set temperature set by the input means, and the set air volume change pattern includes a mode in which air is stopped for a predetermined time.

Thus, in addition to the change in capacity by the capacity control means according to the difference between the set temperature and the room temperature, the change in the blown air temperature due to the change in air volume by the flow rate control means according to the difference between the set temperature and the room temperature. In this case, a change in performance occurs, and the speed at which the indoor temperature fluctuates comprehensively increases, so that the effect that the temperature fluctuation can be felt by the human body can be obtained. Moreover,
Since the capacity can be forcibly reduced to 0 by stopping the air blowing, the room temperature rise can be increased, and the room temperature rapidly decreases immediately after the air blowing is started again, so that a finer room temperature fluctuation can be obtained. Thus, the effect that the room temperature fluctuation can be freely realized is obtained.

In addition, by raising the average value of the set temperature by 1 ° C. from the set temperature set by the set temperature input means, the average room temperature is raised by 1 ° C. while adding 1 / f fluctuation to the room temperature. Can be held. According to the experimental results of the inventors, the temperature fluctuation of 1 / f fluctuation that can be experienced by the human body has been confirmed to have the effect of stimulating the sensation of heat of the occupants and making the occupants feel cooler during cooling. Even if it rises, the same coolness is felt, and the advantage that the air conditioning load can be reduced and energy can be saved can be obtained.

Further, according to the present invention, there is provided an indoor load detecting means for detecting an indoor air-conditioning load, and a set temperature changing pattern and a set air volume changing pattern by a memory when the indoor air-conditioning load detected by the indoor load detecting means is smaller than a predetermined value. A memory output control means for stopping the output is provided.

In this way, while realizing the temperature fluctuation of 1 / f fluctuation, when the indoor air conditioning load is extremely small, the output of the memory is stopped to stop the temperature fluctuation control, thereby preventing the problem of an increase in input. can do.

Further, according to the present invention, when the room temperature detected by the room temperature detecting means is equal to or lower than a preset temperature, the set temperature changing width in the set temperature changing pattern outputted by the memory is reduced, and the room temperature detecting means is provided. When the room temperature detected by the above is higher than a preset temperature, there is provided a set temperature pattern control means for enlarging only a set temperature change range on the lower side of the room temperature in the set temperature change pattern outputted by the memory. It was done.

In this way, when the room temperature is equal to or lower than the predetermined value, the set temperature change width is reduced, so that unnecessary increase in the rotation speed or frequency of the variable capacity compressor is suppressed,
Cycle efficiency can be increased to further save energy. Also, when the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the rotation speed or frequency of the variable capacity compressor does not increase and the indoor temperature becomes excessive. Even if the temperature rises, the room temperature can be quickly returned to an appropriate range by expanding only the set temperature change range on the room temperature lower side, so that the 1 / f fluctuation temperature fluctuation that can be experienced by the human body can be properly adjusted. It can be realized within the room temperature range.

Further, the present invention provides a set temperature pattern control means for reducing a set temperature change width in a set temperature change pattern outputted by a memory when the room temperature detected by the room temperature detecting means is lower than a preset temperature. When the room temperature detected by the room temperature detection means exceeds a preset temperature, the air flow pattern control means for shortening the air supply stop time in the set temperature change pattern output from the memory is provided. Things.

Thus, when the room temperature is equal to or lower than the predetermined value, the set temperature change width is reduced, so that unnecessary increase of the rotation speed or frequency of the variable capacity compressor is suppressed,
Cycle efficiency can be increased to further save energy. Also, when the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the rotation speed or frequency of the variable capacity compressor does not increase and the indoor temperature becomes excessive. Even if the temperature rises, the room temperature can be quickly returned to an appropriate range by shortening the ventilation stop time, thereby realizing a temperature fluctuation of 1 / f fluctuation that can be sensed by the human body within the appropriate room temperature range. be able to.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a set temperature input means for setting a room temperature to a desired temperature, a set air volume input means for setting an air volume of an air conditioner to a desired air volume, and a method for controlling a room temperature fluctuation during cooling. A memory in which a set temperature change pattern and a set air volume change pattern are pre-programmed so as to cause / f fluctuation, and a setting in which the set temperature set by the set temperature input means is changed according to the set temperature change pattern output from the memory. Temperature changing means, setting air volume changing means for changing the set air volume set by the set air volume input means according to a set air volume changing pattern output from the memory, and capacity control according to a difference between the set temperature and the room temperature. And a flow rate control means for controlling the flow rate, and the setting after the change in the set temperature change pattern programmed in the memory. The temperature average value is higher by 1 ° C. than the set temperature set by the set temperature input means, and the set air volume change pattern programmed in the memory includes a mode for stopping air blowing for a predetermined time. An air conditioner characterized by the following.

Further, not only the control response is accelerated to increase the fluctuation speed of the room temperature, but also the minute temperature fluctuation is realized by including the stoppage of the air blow, and the fluctuation of the room temperature can be realized freely. In addition, an increase in the fluctuation speed of the indoor temperature allows the human body to experience the temperature fluctuation. In addition, the average room temperature is raised by 1 ° C. while adding 1 / f fluctuation to the room temperature by making the average of the set temperature after the change 1 ° C. higher than the set temperature set by the set temperature input means. Thus, a cooling effect can be obtained without giving discomfort to the human body and energy can be saved.

Further, a set temperature input means for setting the indoor temperature to a desired temperature, a set air flow input means for setting the air flow of the air conditioner to a desired air flow, and a fluctuation of the indoor temperature during cooling to 1 / f fluctuation. And a memory in which a set temperature change pattern that raises the set temperature average value by 1 ° C. and a set air volume change pattern including a blow stop mode are pre-programmed, and the set temperature set by the set temperature input means is output by the memory. Setting temperature changing means for changing according to a set temperature changing pattern to be set; setting air flow changing means for changing a set air flow set by the set air flow input means according to a set air flow changing pattern output from the memory; An indoor load detecting means for detecting a load; and an indoor air-conditioning load detected by the indoor load detecting means when the indoor air-conditioning load is smaller than a predetermined value. Memory output control means for stopping the output of the set temperature change pattern and the set air flow degree change pattern by the re-operation, capacity control means for performing capacity control according to the difference between the set temperature and the room temperature, and air flow control means for performing air flow control; An air conditioner comprising:

When the temperature fluctuation of 1 / f fluctuation is realized, if the indoor air-conditioning load is very small, the output of the memory is stopped to stop the temperature fluctuation control, thereby preventing the problem of an increase in input. You can do it.

Further, a set temperature input means for setting the indoor temperature to a desired temperature, a set air flow input means for setting the air flow of the air conditioner to a desired air flow, and a 1 / f change in the indoor temperature during cooling.
A memory preprogrammed with a set temperature change pattern that causes fluctuations and raises the set temperature average by 1 ° C. and a set air volume change pattern including a blow-off mode, an indoor temperature detection unit that detects an indoor temperature, and the indoor temperature When the room temperature detected by the detection means is equal to or lower than a predetermined temperature, the set temperature change width in the set temperature change pattern output by the memory is reduced, and the room temperature detected by the room temperature detection means is the predetermined temperature. When the temperature exceeds the set temperature change pattern, the set temperature pattern control means for expanding only the set temperature change width on the room temperature lower side in the set temperature change pattern output by the memory, and the set temperature set by the set temperature input means are set to the set temperature. A set temperature changing means for changing according to a set temperature change pattern output by the temperature pattern control means; Setting air volume changing means for changing the set air volume set by the set air volume input means in accordance with a set air volume changing pattern output from the memory; and capacity control means for performing capacity control in accordance with a difference between a set temperature and a room temperature. And an air volume control means for performing air volume control.

When the room temperature is equal to or lower than the predetermined value, the set temperature change width is reduced, so that the unnecessary increase in the rotation speed or frequency of the variable capacity compressor is suppressed, and the cycle efficiency is increased to further save energy. Can be achieved. Also, when the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the rotation speed or frequency of the variable capacity compressor does not increase and the indoor temperature becomes excessive. Even if it rises, by expanding only the set temperature change range on the room temperature lower side,
Since the room temperature can be quickly returned to the proper range, the temperature fluctuation of 1 / f fluctuation that can be sensed by the human body can be realized within the proper room temperature range.

Further, a set temperature input means for setting the indoor temperature to a desired temperature, a set air flow input means for setting the air flow of the air conditioner to a desired air flow, and a fluctuation of the indoor temperature during cooling to 1 / f fluctuation. A memory in which a set temperature change pattern and a set air volume change pattern including a ventilation stop mode are set in advance so as to increase the set temperature average value by 1 ° C .; an indoor temperature detecting means for detecting an indoor temperature; The set temperature pattern control means for reducing the set temperature change width in the set temperature change pattern output by the memory when the room temperature detected by the above is equal to or lower than a predetermined temperature, and the room temperature detected by the room temperature detecting means is set in advance. When the temperature exceeds the set temperature, the set wind for shortening the air blowing stop time in the set air volume change pattern output by the memory Pattern control means, set temperature change means for changing the set temperature set by the set temperature input means according to a set temperature change pattern output by the set temperature pattern control means, and set temperature by the set air volume input means. A set air volume changing means for changing a set air volume according to a set air volume change pattern output by the set air volume pattern control means; a capacity control means for performing capacity control according to a difference between a set temperature and a room temperature; and performing an air volume control. An air conditioner comprising air flow control means.

When the room temperature is equal to or less than the predetermined value, the change in the set temperature is reduced, so that the increase in the number of revolutions or frequency of the variable capacity compressor is suppressed, the cycle efficiency is increased, and further energy saving is achieved. Can be planned. Also, when the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the rotation speed or frequency of the variable capacity compressor does not increase and the indoor temperature becomes excessive. Even if the temperature rises, the room temperature can be quickly returned to an appropriate range by shortening the ventilation stop time, so that the temperature fluctuation of 1 / f fluctuation that can be experienced by the human body can be realized within the appropriate room temperature range. Becomes

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air conditioner according to the present invention will be described below with reference to the drawings. The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a schematic configuration diagram showing a refrigeration cycle of an air conditioner according to Embodiment 1 of the present invention. FIG. 2 is a control block diagram of the temperature fluctuation control according to the embodiment. FIG. 3 is a time-lapse characteristic diagram of a set temperature change, a set air volume change, and a room temperature change according to the embodiment.

In FIG. 1, reference numeral 13a denotes an operation control device for controlling the operation of the air conditioner. In FIG. 2, 14a
For example, a set temperature change pattern and a set air flow change pattern including a set temperature change width, a set air flow change width, and a holding time such as + 2 ° C., −1 step, 15 minutes → −1 ° C., +1 step, 10 minutes are programmed in advance. Memory. Here, the set temperature change pattern programmed in the memory 14a is characterized in that the set temperature average value after the change is 1 ° C. higher than the set temperature set by the set temperature input unit 12. Further, the set air volume change pattern programmed in the memory 14a is characterized in that the air flow is stopped for a predetermined time.

Reference numeral 15a denotes set temperature changing means for changing the set temperature according to the set temperature change pattern output from the memory 14a. Reference numeral 17 denotes a set air volume input means which includes a display panel, switches, and the like, and sets an indoor air volume.
Is a set air volume changing unit that changes the set air volume set by the set air volume input unit 17 according to the set air volume change pattern output from the memory 14a. Reference numeral 19 denotes an air volume control unit that controls the air volume of the indoor air blowing unit 10 according to the output of the set air volume changing unit 18a. As shown in FIG. 2, the room temperature control device 13a includes a memory 14a and a set temperature changing unit 1.
5a, capacity control means 16, and set air volume changing means 18a
And the air volume control means 19.

The operation of the air conditioner configured as described above will be described below with reference to the time-lapse characteristic diagram of FIG.

The set temperature T _{S is} set by the set temperature input means 12.
Is input, and the set air volume F _{S is} set by the set air volume input means 17.
Is input to drive the outdoor unit 1 and the indoor unit 2 as a whole to perform a cooling operation. After the room temperature reaches T _S and stabilizes, the set temperature changing means 15a changes the set temperature according to the set temperature change pattern output from the memory 14a, and the set air volume change means 18a changes the set temperature output from the memory 14a. The set air volume is changed according to the air volume change pattern.

For example, when the target room temperature is T _S + 2 ° C., the set temperature is T _S + 2 ° C., and the set air volume is F _S −
It becomes 1. Therefore, the capacity decreasing speed due to the decrease in the set air volume is added to the capacity decreasing speed due to the increase in the set temperature, that is, the increasing speed of the room temperature is also increased.

Similarly, when the room temperature is lowered, for example, when the target room temperature is T _S -1 ° C., the set temperature is T _S -1 ° C. and the set air volume is F _S +1. Therefore, the capacity increasing speed due to the increase in the set air volume is added to the capacity increasing speed due to the decrease in the set temperature, that is, the decreasing speed of the room temperature also increases.

Further, in the set temperature change pattern programmed in the memory 14a, the set temperature average value after the change is 1 ° C. higher than the set temperature set by the set temperature input means 12, so that the temperature fluctuation control is performed. While maintaining the average room temperature raised by 1 ° C., it can be maintained.

In addition, since the set air volume change pattern output from the memory 14a includes a mode in which air is stopped for a predetermined period of time, no air is blown while the air is stopped, the air conditioning capacity becomes 0, and the room temperature can be rapidly increased. it can. On the other hand, during the stoppage of the airflow, the indoor heat exchange means 8 does not perform heat exchange, so that the temperature of the indoor heat exchange means 8 is greatly reduced. Immediately after that, the blowing temperature is greatly reduced and the capacity is rapidly increased, so that the room temperature is rapidly lowered. That is, it is possible to rapidly raise and lower the room temperature, and it is possible to realize a free and fine room temperature change that cannot be achieved by the conventional control response as the room temperature change. Also,
For example, by stopping the air supply for a predetermined time during the room temperature rise, by simultaneously switching to the room temperature decrease and restarting the air supply, not only can the room temperature at the time of room temperature increase be further increased, but also the room temperature can be raised immediately after the switch to the room temperature decrease. It is possible to greatly reduce the temperature, and it is possible to realize a minute fluctuation in room temperature. In addition, the control response can be further accelerated.

For example, if the target indoor temperature is T _S −
In the case of 1 ° C., the difference between the room temperature and the set temperature is increased by making the set temperature change range larger than the target room temperature change range, such as setting the set temperature to T _S -3 ° C. 16, the amount of change in the variable capacity compressor 3 and the indoor expansion means 9 can be increased, and the control response can be further accelerated.

As described above, by changing the set air volume including stopping the air blowing in addition to the set temperature change, it is possible to increase the changing speed of the room temperature and to realize a fine change in the room temperature, and to realize the free room temperature fluctuation. It is possible to obtain the effect of realizing, and also to obtain the effect that the human body can sense the indoor temperature fluctuation.

In addition, since the average room temperature can be maintained in a state of being raised by 1 ° C. while realizing the temperature fluctuation of 1 / f fluctuation which can be sensed by the human body, the sensation of heat of the resident is stimulated, There is also obtained an advantage that a cooling effect, that is, a cooling effect can be obtained. Moreover, even if the average room temperature rises by 1 ° C., the same coolness is felt, and the effect of reducing the air conditioning load and saving energy can be obtained.

Here, the room temperature fluctuation of 1 / f fluctuation refers to the power spectrum of the room temperature fluctuation whose frequency f
It shows temperature fluctuations that are proportional to one part. However, the frequency f is proportional to the 1 / 0.55th power, that is, 1 /.
Usually, 1 / f ^0.9 to 1 / f ^1.1 such as a temperature fluctuation of f ^1.05 is also included as a temperature fluctuation of approximately 1 / f fluctuation.

Embodiment 2 FIG. 4 is a schematic configuration diagram showing a refrigeration cycle of an air conditioner according to Embodiment 2 of the present invention. FIG. 5 is a control block diagram of the temperature fluctuation control according to the embodiment. FIG. 6 is a flowchart of the temperature fluctuation control and the memory output control according to the embodiment.

4 and 5, reference numeral 13b denotes an operation control device for controlling the operation of the air conditioner. Reference numeral 20 denotes an indoor load detecting means for detecting an indoor air conditioning load.

The indoor load detecting means 20 detects both the degree of opening of the indoor expansion means 9 and the number of revolutions or the frequency of the variable capacity compressor 3 as the magnitude of the air conditioning capacity balanced with the indoor air conditioning load. However, the same effect can be obtained by detecting only the rotation speed or frequency of the variable capacity compressor 3 and only the opening of the indoor expansion means 9. In addition, there is no problem even with the alternative means such as the indoor temperature detection means 11 and the outside air temperature detection.

Reference numeral 21 denotes a memory output control means for stopping the output of the set temperature change pattern and the set air volume change pattern by the memory 14a when the indoor air-conditioning load detected by the indoor load detecting means 20 is smaller than a predetermined value.

As shown in FIG. 5, the operation control device 13b comprises a memory 14a, a memory output control means 21, a set temperature change means 15a, a capacity control means 16, a set air volume change means 18a, and an air volume control means. It consists of 19.

The operation of the air conditioner configured as described above in relation to temperature fluctuation control and memory output control will be described below with reference to the flowchart of FIG.

The memory 1 in the set temperature changing means 15a
4a outputs the set temperature T according to the set temperature change pattern.
Change the _S, and the set air volume increases, lowering the room temperature by changing the set airflow F _S by setting air volume change pattern memory 14a outputs the change means 18a, to provide a temperature fluctuation of 1 / f fluctuation (step 11).

Here, the indoor air-conditioning load 1 is detected by the indoor load detecting means 20 (step 12), and is compared with a preset load L preset by the memory output control means 21 (step 13). When the load l is small, that is, when L> l (step 14 branches to YES), the memory output control means 21
The output of the set temperature change pattern and the set air volume change pattern according to 4a is stopped (step 15). That is, by stopping the output of the memory 14a, the temperature fluctuation control is stopped.

Therefore, although the indoor air-conditioning load is very small and the air-conditioning load is reduced by performing the temperature fluctuation control, the average rotation speed or frequency of the variable capacity compressor 3 cannot be reduced, and the input is conversely reduced. Even in the case of an increase, the output of the memory 14a, that is, the temperature fluctuation control can be stopped to prevent the input from increasing.

The value of the set load L is, for example, 20% of the rated capacity of the air conditioner.
It is desirable to determine an optimum value from the control range of the variable capacity compressor 3, experiments, and the like.

As described above, when the air-conditioning load is very small, the output of the memory 14a, that is, the temperature fluctuation control is stopped to prevent the input from increasing, and in other cases, the temperature fluctuation control is continued, whereby the overall operation is continued. The effect is that the effective energy saving can be achieved.

In this embodiment, the memory 14a
And the memory output control means 21 have different configurations,
Even when the memory 14a has the function of the memory output control means 21 and has the same configuration, the same effect can be obtained.

(Embodiment 3) FIG. 7 is a schematic configuration diagram showing a refrigeration cycle of an air conditioner according to Embodiment 3 of the present invention. FIG. 8 is a control block diagram of the temperature fluctuation control according to the embodiment. FIG. 9 is a flowchart of the set temperature change width control according to the embodiment.

In FIGS. 7 and 8, reference numeral 13c denotes an operation control device for controlling the operation of the air conditioner. 22c reduces the set temperature change width in the set temperature change pattern output from the memory 14a when the room temperature detected by the room temperature detecting means 11 is equal to or lower than a preset temperature, and furthermore, the room detected by the room temperature detecting means 11 This is a set temperature pattern control means for expanding only the set temperature change range on the room temperature lower side in the set temperature change pattern output by the memory 14a when the temperature exceeds a preset temperature.

Reference numeral 15c denotes a set temperature changing means for changing the set temperature set by the set temperature input means 12 according to the output of the set temperature pattern control means 22c. The operation control device 13c includes, as shown in FIG.
And a set temperature pattern control unit 22c, a set temperature change unit 15c, a capacity control unit 16, a set air volume change unit 18a, and an air volume control unit 19.

FIG. 9 shows the operation of the part related to the set temperature change width control in the air conditioner configured as described above.
This will be described with reference to the flowchart of FIG.

The memory 1 in the set temperature changing means 15c
4a outputs the set temperature T according to the set temperature change pattern.
Change the _S, and the set air volume increases, lowering the room temperature by changing the set airflow F _S by setting air volume change pattern memory 14a outputs the change means 18a, to provide a temperature fluctuation of 1 / f fluctuation.

Here, the room temperature t is detected by the room temperature detecting means 11 (step 21), and is compared with the set room temperature T preset by the set temperature pattern control means 22c (step 22). Also when the room temperature t is low, that is, when t ≦ T (step 23).
Is branched to the YES side), and the set temperature change width of the set temperature change pattern output from the memory 14a is reduced (step 2).
4). For example, when the set temperature change pattern output from the memory 14a is + 3 ° C. → −3 ° C. → + 2 ° C., for example, +
The range of the set temperature change is reduced to 2 ° C. → −2 ° C. → + 1 ° C. Accordingly, the difference between the room temperature and the set temperature is reduced by reducing the range of the change in the set temperature, so that the unnecessary increase in the rotation speed or frequency of the variable capacity compressor 3 is suppressed, and further energy saving is achieved. Can be achieved.

On the other hand, when t is higher than the set room temperature T, that is, when t> T (step 23 branches to NO side), the set temperature pattern changing means 22c sets the room temperature in the set temperature pattern output from the memory 14a. Only the set temperature change width on the lower side is increased (step 2
5). For example, when the set temperature change pattern output from the memory 14a is + 3 ° C. → −3 ° C. → + 2 ° C., for example, +
Only the set temperature change range on the room temperature lowering side is expanded such as 3 ° C. → −5 ° C. → + 2 ° C. For this reason, when the indoor air-conditioning load increases rapidly and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the increase in the rotation speed or frequency of the variable capacity compressor 3 is suppressed. Even if the room temperature rises excessively without increasing the capacity, the room temperature can be quickly returned to an appropriate range.

For the value of the set room temperature T, for example, the set temperature T _S set by the set temperature input means 12
It is desirable to set an appropriate value such as T _S + 2 ° C. with respect to the temperature, which does not cause discomfort to the human body, through experiments or the like.
Also, it is desirable to set appropriate values for the reduction width and the expansion width of the set temperature change width in advance through experiments and the like.

As described above, when the room temperature is equal to or less than the predetermined value, the set temperature change width is reduced, so that the unnecessary increase in the rotation speed or frequency of the variable capacity compressor 3 is suppressed.
Cycle efficiency can be increased to further save energy. Conversely, even if the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or if the indoor temperature rises excessively without increasing the capacity because the set temperature is excessively reduced, By expanding only the temperature change range on the lower side, the room temperature can be quickly returned to an appropriate range, thereby realizing a temperature fluctuation of 1 / f fluctuation that can be experienced by the human body within the appropriate room temperature range. Is obtained.

In this embodiment, the memory 14a
And the set temperature pattern control means 22c have different configurations.
The same effect can be obtained even if the same configuration is provided by providing the function of c. Alternatively, a plurality of set temperature change patterns having different set temperature change widths may be programmed in the memory 14a in advance, and the set temperature change pattern may be selected according to the room temperature detected by the room temperature detecting means 11. The effect of is obtained.

(Embodiment 4) FIG. 10 shows Embodiment 4 of the present invention.
FIG. 1 is a schematic configuration diagram showing a refrigeration cycle of an air conditioner according to the first embodiment. FIG. 11 is a control block diagram of the temperature fluctuation control according to the embodiment. FIG. 12 is a flowchart of the set temperature change width control and the set air volume change control according to the embodiment.

In FIGS. 10 and 11, reference numeral 13d denotes an operation control device for controlling the operation of the air conditioner. 22d
Is a set temperature pattern control means for reducing the set temperature change width in the set temperature change pattern output from the memory 14a when the room temperature detected by the room temperature detection means 11 is equal to or lower than a preset temperature, and 23d is the room temperature detection means 11 Is a set air volume pattern control means for shortening the air supply stop time in the set air volume change pattern output by the memory 14a when the detected room temperature exceeds a preset temperature.

Reference numeral 15d denotes a set temperature changing means for controlling the set temperature set by the set temperature input means 12 according to the output of the set temperature pattern control means 22d. 1
Reference numeral 8d denotes a set air volume changing unit that controls the set air volume set by the set air volume input unit 17 according to the output of the set air volume pattern control unit 23d. The operation control device 13d includes:
As shown in FIG. 11, a memory 14a, a set temperature pattern control unit 22d, a set temperature change unit 15d, a capacity control unit 16, a set air volume pattern control unit 23d,
It comprises a set air volume changing means 18d and an air volume control means 19.

The operation of the air-conditioning apparatus having the above-described configuration will now be described with reference to the flowchart of FIG.

In the set temperature changing means 15d, the memory 1
4a outputs the set temperature T according to the set temperature change pattern.
_S is changed, and the set air volume change means 18d changes the set air volume F _{S according} to the set air volume change pattern output from the memory 14a to raise and lower the room temperature, thereby providing a temperature fluctuation of 1 / f fluctuation.

Here, the room temperature t is detected by the room temperature detecting means 11 (step 31), and is compared with the set room temperature T preset by the set temperature pattern control means 22d (step 32). Also when the room temperature t is low, that is, when t ≦ T (step 33).
Branch to YES side), the set temperature pattern control means 22d
Then, the set temperature change width of the set temperature change pattern output from the memory 14a is reduced (step 34). For example, the set temperature change pattern output from the memory 14a is +
When 3 ° C. → −3 ° C. → + 2 ° C., for example, + 2 ° C. → −2
The range of the set temperature change is reduced, such as ℃ → + 1 ° C. Accordingly, the difference between the room temperature and the set temperature is reduced by reducing the range of the change in the set temperature, so that the unnecessary increase in the rotation speed or frequency of the variable capacity compressor 3 is suppressed, and further energy saving is achieved. Can be achieved.

On the other hand, when t is higher than the set room temperature T, that is, when t> T (step 33 branches to the NO side), the set air flow pattern control means 23d stops air blowing in the set air flow pattern output from the memory 14a. The time is reduced (step 35). For example, the memory 14a
When the blow stop time is 2 minutes in the set temperature pattern output by the controller, the blow stop time is reduced to 1 minute, and the strong wind operation is performed for the remaining 1 minute. For this reason, when the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or when the set temperature is excessively reduced, the increase in the rotation speed or frequency of the variable capacity compressor is suppressed. Even if the room temperature rises excessively without increasing the room temperature, the room temperature can be quickly returned to the appropriate range. Also,
For example, by setting the blowing stop time to 0 minutes, it is possible to more quickly lower the room temperature.

The value of the set room temperature T is, for example, the set temperature T _S set by the set temperature input means 12.
It is desirable to set an appropriate value such as T _S + 2 ° C. with respect to the temperature, which does not cause discomfort to the human body, through experiments or the like.
Also, it is desirable to set appropriate values in advance for the reduction width of the set temperature change width, the reduction time of the ventilation stop time, and the like from experiments and the like.

As described above, when the room temperature is equal to or less than the predetermined value, the set temperature change width is reduced, so that the unnecessary increase in the rotation speed or frequency of the variable capacity compressor 3 is suppressed.
Cycle efficiency can be increased to further save energy. Conversely, even if the room air-conditioning load suddenly increases and the room temperature rises excessively, or if the room temperature rises excessively without increasing the capacity due to excessive reduction of the set temperature, the capacity can be varied. Even if the rotation speed or frequency of the type compressor does not rise and the room temperature rises excessively,
Since the indoor temperature can be quickly returned to an appropriate range by shortening the ventilation stop time, the effect that 1 / f fluctuation temperature fluctuation that can be sensed by the human body can be realized within the appropriate indoor temperature range. can get.

In this embodiment, the memory 14a
And the set temperature pattern control unit 22d and the set air volume pattern control unit 23d are separately configured, but the memory 14a may have the function of the set temperature pattern control unit 22d or the set air volume pattern control unit 23d, and may have the same configuration. An equivalent effect can be obtained. Also, a plurality of set temperature change patterns having different set temperature change widths are programmed in the memory 14a in advance, and the room temperature detecting means 1
Even if the set temperature change pattern is selected according to the room temperature detected in step 1, the same effect can be obtained. In addition, for example, a plurality of set air volume change patterns having different air blow stop times are programmed in the memory 14a in advance,
The same effect can be obtained even if the set air volume change pattern is selected according to the room temperature detected by the room temperature detecting means 11.

[0082]

As described above, according to the present invention, by changing the set air volume including the stop of the air blowing in addition to the set temperature change, the indoor temperature is changed while maintaining the room temperature raised by 1 ° C. As the speed is increased, a minute change in room temperature can be realized. Therefore, since the human body can experience a change in indoor temperature, the effect of stimulating the sensation of heat of the occupant to make the occupant feel cooler during cooling, that is, a cooling effect can be obtained. That is, even if the room temperature rises by 1 ° C., the same coolness is felt, and the advantageous effect that the air conditioning load can be reduced and energy can be saved can be obtained.

In the case where the temperature fluctuation of 1 / f fluctuation is realized, when the indoor air-conditioning load is very small, the output of the memory is stopped to stop the temperature fluctuation control, thereby preventing the problem of an increase in input. Therefore, the effect that total energy saving can be achieved can be obtained.

Further, when the room temperature is equal to or lower than a predetermined value, the set temperature change width is reduced to suppress a wasteful increase in the number of revolutions or frequency of the variable capacity compressor. Efficiency can be enhanced to further save energy. Conversely, when the indoor air-conditioning load increases rapidly and the indoor temperature rises excessively,
Even if the room temperature rises excessively due to a decrease in capacity due to excessive reduction of the set temperature, the room temperature can be quickly returned to the appropriate range by expanding only the set temperature change range on the lower room temperature side. Therefore, the effect that the temperature fluctuation of 1 / f fluctuation which can be sensed by the human body can be realized within an appropriate room temperature range can be obtained.

When the room temperature is equal to or lower than a predetermined value, the set temperature change width is reduced to suppress a wasteful increase in the number of revolutions or frequency of the variable capacity compressor, thereby improving cycle efficiency. It is possible to further increase energy saving. Conversely, even if the indoor air-conditioning load suddenly increases and the indoor temperature rises excessively, or if the indoor temperature rises excessively due to a decrease in capacity due to excessive reduction of the set temperature, the ventilation stop time Is shortened, the room temperature can be promptly returned to the proper range, so that the effect that the temperature fluctuation of 1 / f fluctuation that can be sensed by the human body can be realized within the proper room temperature range can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a refrigeration cycle according to Embodiment 1 of an air conditioner of the present invention.

FIG. 2 is a control block diagram of temperature fluctuation control according to the embodiment.

FIG. 3 is a time-lapse characteristic diagram of a set temperature change, a set air volume change, and a room temperature change according to the embodiment.

FIG. 4 is a schematic configuration diagram showing a refrigeration cycle according to Embodiment 2 of the air conditioner of the present invention.

FIG. 5 is a block diagram of temperature fluctuation control and memory output control according to the embodiment.

FIG. 6 is a flowchart of temperature fluctuation control and memory output control according to the embodiment.

FIG. 7 is a schematic configuration diagram showing a refrigeration cycle according to Embodiment 3 of the air conditioner of the present invention.

FIG. 8 is a control block diagram of temperature fluctuation control according to the embodiment.

FIG. 9 is a flowchart of a set temperature change width control according to the embodiment.

FIG. 10 is a schematic configuration diagram showing a refrigeration cycle according to Embodiment 4 of the air conditioner of the present invention.

FIG. 11 is a control block diagram of temperature fluctuation control according to the embodiment.

FIG. 12 is a flowchart of a set temperature change width control and a set air volume change control according to the embodiment.

FIG. 13 is a schematic configuration diagram showing a refrigeration cycle of a conventional air conditioner.

FIG. 14 is a control block diagram of conventional temperature change control of an air conditioner.

FIG. 15 is a characteristic diagram of a set temperature and a room temperature of a conventional air conditioner over time.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Indoor temperature detection means 12 Set temperature input means 14, 14a memory 15a, 15c, 15d Set temperature change means 16 Capacity control means 17 Set air flow input means 18a, 18d Set air flow change means 19 Air flow control means 20 Indoor load detection means 21 Memory Output control means 22c, 22d Set temperature pattern control means 23d Set air volume pattern control means

Claims (6)

[Claims] 1. A set temperature input means for setting an indoor temperature to a desired temperature, a set air flow input means for setting an air flow of an air conditioner to a desired air flow, and an indoor temperature fluctuation during cooling becomes 1 / f fluctuation. A memory in which a set temperature change pattern and a set air volume change pattern are pre-programmed; set temperature change means for changing a set temperature set by the set temperature input means in accordance with a set temperature change pattern output by the memory; A set air volume changing unit that changes a set air volume set by a set air volume input unit according to a set air volume change pattern output from the memory; and a capacity control unit that performs capacity control according to a difference between a set temperature and a room temperature. Air flow control means for performing air flow control, and wherein the set temperature average value after change in the set temperature change pattern programmed in the memory is Air characterized by being 1 ° C. higher than the set temperature set by the set temperature input means, and wherein the set air volume change pattern programmed in the memory includes a mode for stopping air blowing for a predetermined time. Harmony machine. 2. A set temperature input means for setting the room temperature to a desired temperature, a set air volume input means for setting the air volume of the air conditioner to a desired air volume, and the fluctuation of the indoor temperature during cooling becomes 1 / f fluctuation; A memory in which a set temperature change pattern that raises the set temperature average value by 1 ° C. and a set air volume change pattern including a blow stop mode are pre-programmed, and a setting in which the memory outputs the set temperature set by the set temperature input unit. A set temperature change unit that changes according to a temperature change pattern; a set air volume change unit that changes a set air volume set by the set air volume input unit according to a set air volume change pattern output by the memory; and an indoor air conditioning load. An indoor load detecting means for detecting, and setting by the memory when an indoor air-conditioning load detected by the indoor load detecting means is smaller than a predetermined value. A memory output control unit for stopping output of the temperature change pattern and the set airflow change pattern; a capacity control unit for performing capacity control according to a difference between the set temperature and the room temperature; and an airflow control unit for performing airflow control. An air conditioner characterized by the following. 3. A set temperature input means for setting an indoor temperature to a desired temperature, a set air flow input means for setting an air flow of the air conditioner to a desired air flow, and a fluctuation in indoor temperature during cooling becomes 1 / f fluctuation; A memory preprogrammed with a set temperature change pattern for increasing the set temperature average value by 1 ° C. and a set air volume change pattern including a ventilation stop mode, an indoor temperature detecting means for detecting an indoor temperature, and the indoor temperature detecting means A set temperature pattern control means for controlling a set temperature change width in a set temperature change pattern output from the memory in accordance with the room temperature detected by the controller; and a set temperature pattern control means for setting the set temperature set by the set temperature input means. A set temperature changing means for changing in accordance with a set temperature change pattern output by Setting air volume changing means for changing the volume in accordance with a set air volume changing pattern output by the memory; capacity controlling means for performing capacity control in accordance with a difference between the set temperature and the room temperature; and air volume controlling means for performing air volume control. An air conditioner, comprising: 4. The set temperature pattern control means,
When the room temperature detected by the room temperature detecting means is equal to or lower than the preset temperature, the set temperature change width in the set temperature change pattern output from the memory is reduced, and the room temperature detected by the room temperature detecting means is set in advance. 4. The air conditioner according to claim 3, wherein when the temperature is exceeded, only the set temperature change width on the room temperature lower side in the set temperature change pattern output by the memory is expanded. 5. A set temperature input means for setting an indoor temperature to a desired temperature, a set air flow input means for setting an air flow of an air conditioner to a desired air flow, and a fluctuation in indoor temperature during cooling becomes 1 / f fluctuation; A memory in which a set temperature change pattern that raises the set temperature average value by 1 ° C. and a set air volume change pattern including a blow-off mode are pre-programmed, an indoor temperature detecting unit that detects an indoor temperature, and the indoor temperature detecting unit detects the temperature. Set temperature pattern control means for controlling a set temperature change width in a set temperature change pattern output from the memory according to the detected indoor temperature, and a set air volume output from the memory according to the indoor temperature detected by the indoor temperature detecting means A set air volume pattern control unit for controlling the air supply stop time in the change pattern; and a setting set by the set temperature input unit. Setting temperature changing means for changing a temperature in accordance with a set temperature changing pattern outputted by the set temperature pattern controlling means; and a set airflow changing means for outputting the set airflow set by the set airflow input means to the set airflow pattern controlling means. An air conditioner comprising: a set air volume changing unit that changes according to a pattern; a capacity control unit that performs capacity control according to a difference between a set temperature and a room temperature; and an air volume control unit that performs air volume control. . 6. The set temperature pattern control means,
When the room temperature detected by the room temperature detection means is equal to or lower than a preset temperature, the set temperature change width in the set temperature change pattern output by the memory is reduced, and the set air volume pattern control means includes: The air conditioner according to claim 5, wherein when the room temperature detected by the temperature detecting means exceeds a preset temperature, the air supply stop time in the set air volume change pattern output by the memory is shortened.