JP2000337679A - Control unit for air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent comfortable cool feeling from being spoiled in a case wherein the amount of shifting upon shifting the objective temperature of an air conditioner to a high degree when the cooling operation of an air conditioner and the operation of a fan are effected in parallel. SOLUTION: An air conditioner is provided with an air conditioner temperature setting means 3 for setting the objective temperature of the air conditioner, a fan capacity setting means 5 for setting the capacity of a fan, and an objective temperature shifting means 7 for shifting the objective temperature by determining the shifting amount of the objective temperature to a high degree based on the control information on the objective temperature set value of the air conditioner and the fan air volume set value upon effecting the cooling operation of the air conditioner and the operation of the fan in parallel. The operation of the air conditioner and the operation of the fan are controlled simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioning system for controlling an air conditioner and a blower in an interlocked manner.

[0002]

2. Description of the Related Art Conventionally, a control device for an air conditioning system of this kind is provided with a switch for switching a target temperature of an air conditioner operation as shown in Japanese Patent Publication No. 60-29855, for example. The drive switch of the electric fan is turned on in conjunction with the switch that shifts to a fixed amount. As a result, an energy-saving effect can be obtained while maintaining a cool feeling as compared with a case where a fan such as a fan is not used.

[0003]

However, in the above-described conventional configuration, when a blower is used at the time of cooling, the operation setting such as the temperature setting of the air conditioner, the air flow setting and the air flow setting of the blower set by the user, and the room setting. Regardless of room temperature, the target temperature is shifted higher by a fixed shift amount, so it may feel hotter or colder than before using the blower together, which has the problem of compromising comfort. I was

The present invention solves such a conventional problem. When the air conditioner and the blower are operated in combination, the target of the air conditioner is set at an optimum shift amount according to the operation setting of the air conditioner and the blower and the room temperature. It is an object of the present invention to provide a control device for an air conditioning system that can always achieve both comfort and energy saving by shifting the temperature.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention according to claim 1 is a control device for an air-conditioning system for simultaneously controlling the operation of an air conditioner and a blower, and sets a target temperature of the air conditioner. An air conditioner temperature setting unit that performs air conditioning, and a blower air volume setting unit that sets the air volume of the blower. When both the cooling operation of the air conditioner and the operation of the blower are used, the air temperature is an output value from the air conditioner temperature setting unit. Based on control information of the air conditioner target temperature set value and the blower air flow set value which is an output value from the blower air flow setting means, a shift amount for increasing the air conditioner target temperature set value is determined, and a shift target is determined. It is characterized by having a temperature shift means.

According to a second aspect of the present invention, the target temperature shift means determines the shift amount to be larger as the target temperature set value is lower.

According to a third aspect of the present invention, there is provided a room temperature detecting means for detecting a room temperature, wherein the target temperature shift means sets the room temperature to a predetermined value when the room temperature is higher than the target temperature setting value by a predetermined value or more. After reaching near the target temperature set value, the temperature is shifted to the target temperature.

According to a fourth aspect of the present invention, there is provided an air conditioner air flow rate setting means for setting an air flow rate of the air conditioner, wherein the target temperature shift means is adapted to set the air flow rate of the air conditioner to a predetermined value or more, and When the air volume setting value is equal to or less than a predetermined value, the target temperature is not shifted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 is based on the control information of the target temperature setting of the air conditioner and the air flow rate setting of the blower when the cooling operation of the air conditioner and the operation of the blower are simultaneously used. A control device for an air conditioning system characterized in that the target temperature is shifted higher with a larger shift width as the setting of the blower air flow increases, whereby the air conditioner always cools even if the blower air flow set by the user changes. It has an effect that an energy saving effect can be obtained while keeping the feeling of being constant.

According to a second aspect of the present invention, there is provided a control device for an air conditioning system according to the first aspect, wherein the lower the target temperature, the higher the target temperature is shifted by a larger shift width. Even if the target temperature set by the user changes, the cool feeling is always kept constant, and the effect of saving energy is obtained.

According to a third aspect of the present invention, when the room temperature of the room is higher than the target temperature by a predetermined value or more, the target temperature is shifted after the room temperature approaches the target temperature. When the room temperature is significantly higher than the target temperature, such as when the air conditioner starts operating, the target temperature does not shift to a higher value even when the blower is operated in combination, so that the controller is not used. Has the effect that a person can obtain a sufficient cool feeling faster.

According to a fourth aspect of the present invention, the target temperature is not shifted when the air volume setting of the air conditioner is equal to or more than a predetermined value and the air volume setting of the blower is equal to or less than the predetermined value. This is a control device of the air conditioning system, which allows the target temperature to be increased when the air speed to the user does not increase when the air blower is operated in combination compared to the operation only with the air conditioner, and the sense of coolness does not increase. Since the air conditioner is maintained as it is during operation, it has an effect that a comfortable cool feeling is not impaired.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of an embodiment of a control device for an air conditioning system according to the present invention. In FIG. 1, an operation unit 1 includes an operation selection unit 2, an air conditioner temperature setting unit 3, an air conditioner air volume setting unit 4, and a blower air volume setting unit 5. This is for the user to input each operation setting of both the air conditioner and the blower, and to transmit each operation setting signal to the air conditioner and the blower. The operation selecting means 2 is provided with switches for turning on / off each operation of the air conditioner and turning on / off a blower such as a fan or a ceiling fan, and performs independent operation of the air conditioner or the blower and combined operation of the air conditioner and the blower. It is for selection. The air conditioner temperature setting means 3 allows the user to input and set the target temperature of the air conditioner, the air conditioner air volume setting means 4 allows the user to input and set the air volume of the air conditioner, and the blower air volume setting means 5 Is for inputting and setting the air volume of the blower. Further, the room temperature detecting means 6 is provided with a room temperature sensor at the air inlet of the air conditioner,
It is for detecting the room temperature. The target temperature shift means 7 is provided in the air conditioner, and each operation setting of the operation selection means 2, the air conditioner temperature setting means 3, the air conditioner air flow rate setting means 4, and the blower air flow setting means 5 transmitted from the operation means. For determining the shift width for shifting the target temperature based on the information and the room temperature information from the room temperature detecting means 6 and shifting the target temperature set by the air conditioner temperature setting means 3 to change the setting of the target temperature It is. The air-conditioning function control means 8 controls the air-conditioning function so that the room temperature detected by the room temperature detection means 6 matches the target temperature set by the air conditioner temperature setting means 3 and the target temperature shift means 7. It is. The air conditioner air volume control means 9 controls the number of rotations of the fan of the air conditioner to control the air volume to the air volume set by the air conditioner air volume setting means 4. The blower air volume control means 10 is for controlling the number of revolutions of the fan of the blower to control the air volume set by the blower air volume setting means 5.

FIG. 2 is a time chart showing an example of the control operation during cooling in the present embodiment.

First, at time t0, when the operation of only the air conditioner is turned ON by the operation selecting means 2 by the user, the room temperature detected by the room temperature detecting means 6 is set to the air conditioner temperature setting means 3
The air-conditioning function control unit 8 controls the air-conditioning function so as to match the target temperature setting Ts1 input in step (1). Also,
The air volume of the air conditioner is controlled by the air volume control unit 9 so that the air volume setting Va2 input by the air volume setting unit 4 is obtained. As a result, the room temperature before the operation of the air conditioner decreases with time and stabilizes at the target temperature Ts1.

Thereafter, at time t2, the operation selecting means 2 turns on the operation of the blower in addition to the air conditioner, and performs the combined operation of the air conditioner and the blower. The blower air volume is controlled by the blower air volume control unit 10 so as to be the air volume setting Vf3 input by the blower air volume setting unit 5. The target temperature setting is
At the same time as the operation of the blower, the target temperature T when the air conditioner operates alone
s1 is shifted by + ΔT2 ° C. higher by the target temperature shift means 7, and is changed to the target temperature Ts1 + ΔT2 when the blower is used together.

Further, at time t2, the blower air volume setting is changed by the user from Vf3 to Vf2 to a smaller air volume setting. At this time, the shift amount of the target temperature is changed by the target temperature shift means 7 from + ΔT2 ° C. to a smaller shift amount from + ΔT1 ° C. In this case, the target temperature shift means 7 shifts the target temperature based on the relationship between the optimal target temperature shift amount and the pre-stored blower air flow setting so that the larger the blower air flow setting, the larger the target temperature shift amount. The amount is determined. In other words, the larger the blower air volume, the stronger the wind speed to the user and the more cool feeling. Therefore, even if the target temperature is set higher, the same cool feeling as before the larger blower air flow is obtained. This makes it possible to always maintain the same cool feeling as in the air conditioner alone operation when the air conditioner is used in combination with the air blower, regardless of the blower air volume setting.

Next, at time t3, the blower air volume setting is changed by the user from Vf2 to Vf1 to a smaller air volume setting, and the air conditioner air volume setting is changed by the user from Va2 to Va3 to a higher air volume setting. Is done. At this time, the shift amount of the target temperature is set to 0 ° C. by the target temperature shift means 7, that is, the target temperature Ts1 during the air conditioner alone operation is not shifted.
It is returned to s1. In this case, in the target temperature shift means 7, the air conditioner air flow rate setting is equal to or more than a predetermined value Va3 and the blower air flow rate setting is a predetermined value Vf1.
The following is based on the rule that the shift amount of the target temperature is set to 0 ° C.

This rule will be described in detail. As shown in FIG. 3, the polka dot region is a region where the target temperature is shifted to a higher temperature, and the hatched region is a region where the target temperature shift amount is 0 ° C. In the region where the shift amount of the target temperature is set to 0 ° C., even when the blower is operated in combination, the wind speed to the user does not increase as compared with the operation of only the air conditioner, and the sense of coolness does not increase.
The shift amount cannot be set. At this time, if the wind speed does not increase, the target temperature Ts when the air conditioner operates alone is not set.
If the target temperature is shifted to be higher than 1, a problem arises that the temperature becomes hotter and the sense of coolness is impaired.

FIG. 4 is a time chart showing another example of the control operation during cooling in the present embodiment. First, at the time t0, when the operation of both the air conditioner and the blower is turned on by the operation selecting means 2 by the user, the room temperature detected by the room temperature detecting means 6 is set to the target temperature setting inputted by the air conditioner temperature setting means 3. The air-conditioning function control means 8 controls the air-conditioning function so as to coincide with Ts3. The air volume of the air conditioner is controlled by the air volume control unit 9 so that the air volume setting Va2 input by the air volume setting unit 4 is obtained. Further, the blower air volume is controlled by the blower air volume control means 10 so as to be the air volume setting Vf3 input by the blower air volume setting means 5.

In the above case, the difference (T0-Ts3) between the room temperature T0 and the target temperature setting Ts3 at the time t0 is a predetermined value ΔT
In order to satisfy the above condition, the target temperature shift means 7 sets the shift amount of the target temperature to 0 ° C. even when the blower is operated in combination, and does not shift the target temperature Ts3 in the air conditioner alone operation. The temperature is maintained until time t1 when the room temperature reaches the target temperature setting Ts3 and stabilizes. Then, at time t1,
The target temperature Ts3 is set to + ΔT3 by the target temperature shift means 7.
The target temperature is changed to Ts3 + ΔT3.

That is, when the room temperature is much higher than the target temperature, such as at the start of the cooling operation, the priority is given to giving the user a quicker and more sufficient feeling of coolness. Even in the case of driving, the target temperature is not shifted higher until the room temperature approaches the target temperature and stabilizes, so that the comfort can be prevented from being impaired at the start of driving.

Next, at time t2, the operation of the blower is turned off by the user by the operation selecting means 2, and at the same time, the target temperature is changed from Ts3 to Ts4 by the air conditioner temperature setting means 3. At this time, since the air conditioner operates alone, the shift amount of the target temperature setting is set to 0 ° C. by the target temperature shift means 7, and the target temperature is set to Ts.
3 + ΔT3 is changed to Ts4.

Further, at the time t3, the operation of the blower is turned on again by the operation selecting means 2 by the user. At this time, the shift amount of the target temperature is set to + ΔT4 by the target temperature shift means 7, and the target temperature is changed from Ts4 when the air conditioner operates alone to Ts4 + ΔT4 when the air conditioner is used together. In this case, since the target temperature at the time of the air conditioner alone operation is compared with the previous set value, Ts3 <Ts4, the shift amount of the target temperature is set to + ΔT3> + ΔT4. In other words, the target temperature shift means 7 controls the blower with respect to the previously stored target temperature in the air conditioner alone operation so that the larger the target temperature setting in the air conditioner alone operation, the smaller the target temperature shift amount in the combined use of the blower. The shift amount of the target temperature is determined based on the relationship between the target temperature shift amounts when used together. This is based on the human temperature sensation characteristic that the higher the room temperature, the more the effect of increasing the coolness is reduced even if the amount of increase in the wind speed is the same. Therefore, when the fan is used together, the optimal target temperature shift amount is set according to the level of the target temperature setting, and a comfortable cool feeling can always be maintained.

[0025]

As is apparent from the above embodiment, since the target temperature during the independent operation of the air conditioner is adjusted to the optimum shift amount and shifted, the comfort is always maintained irrespective of the change in the operating conditions of the air conditioner and the blower. Energy saving can be achieved at the same time.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control device of an air conditioning system according to an embodiment of the present invention.

FIG. 2 is a time diagram illustrating an example of a control operation of the same embodiment.

FIG. 3 is a diagram for determining a target temperature shift amount based on a blower air flow set value and an air conditioner air flow set value;

FIG. 4 is a time chart showing an example of a control operation of the same embodiment.

[Explanation of symbols]

 1 operation means 2 operation selection means 3 air conditioner temperature setting means 4 air conditioner air flow setting means 5 blower air flow setting means 6 room temperature detection means 7 target temperature shift means 8 air conditioning function force control means 9 air conditioner air flow control means 10 blower air flow control means

Claims (4)

[Claims] An air conditioner control device for simultaneously controlling the operation of an air conditioner and a blower, comprising: an air conditioner temperature setting means for setting a target temperature of the air conditioner; and a blower air volume setting means for setting an air flow of the blower. An air conditioner target temperature set value, which is an output value from the air conditioner temperature setting means, and a blower, which is an output value from the blower air volume setting means, when both the cooling operation of the air conditioner and the operation of the blower are used. A control device for an air conditioning system, comprising: target temperature shift means for determining a shift amount for increasing the air conditioner target temperature set value based on control information of an air flow set value and shifting the target temperature set value. 2. The control device for an air conditioning system according to claim 1, wherein the target temperature shift means determines the shift amount to be larger as the target temperature set value is lower. 3. Room temperature detecting means for detecting room temperature,
When the room temperature is higher than the target temperature setting value by a predetermined value or more, the target temperature shift means shifts to the target temperature after the room temperature reaches near the target temperature set value. A control device for the air conditioning system according to claim 1. 4. An air conditioner air flow rate setting means for setting an air flow rate of the air conditioner, wherein the target temperature shift means sets the air conditioner air flow rate set value to a predetermined value or more and sets the blower air flow rate set value to a predetermined value or less. The control device for an air conditioning system according to claim 1, wherein the shift of the target temperature is not performed in the case of (1).