JP2702834B2 - Control device for air conditioner - Google Patents

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 conditioner.

[0002]

2. Description of the Related Art In recent years, there has been a demand for air conditioning for general households and industries to satisfy both improvement in comfort and improvement in energy saving.

Conventionally, a control device of this type of air conditioner has
The following configuration was common. This will be described with reference to FIGS.

As shown in FIG. 1, a control device of a conventional air conditioner includes an operation changeover switch 101 for switching operation modes such as cooling and heating, an operation mode indicator 102 for displaying a current operation mode, and a temperature setting device. Setting switch 1 to be performed
03, a set temperature display 104 for displaying the set temperature,
It has an air volume switch 105 for switching the air volume, an air volume indicator 106 for displaying the current air volume, a communication port 107 connected to the air conditioner body, and a CPU 108 connected to each of these. .

[0005] In the above configuration, the CPU 108 outputs to the corresponding displays (102, 104, 106) in response to the user's input from the respective switches (101, 103, 105) and the contents of the input to the communication port. The data is transmitted from 107 to the air conditioner body 109.

In the air conditioner main body 109, air conditioning is performed by heating, cooling or blowing air based on the contents received from the control device 110 of the air conditioner.

[0007] The air conditioner main body 109 usually has room temperature measuring means 111, compares the set temperature with the room temperature, and operates, for example, as follows. If the room temperature is 2 ° C higher than the set temperature, perform the cooling operation. If the room temperature is 2 ° C lower than the set temperature,
Perform heating operation. If the difference between the room temperature and the set temperature is within 2 ° C., the cooling operation and the heating operation are not performed, and the air blowing operation is performed.

[0008]

In such a conventional control device for an air conditioner, for example, when the room temperature rises more than the set temperature due to sudden increase in the amount of solar radiation, the set temperature is not appropriate. Therefore, even if the air conditioner is also appropriately performing the cooling operation, if the user feels hot, the set temperature is lowered.

After a while, the room temperature becomes too low below the proper temperature, and the user feels cold and rises again to the set temperature. At this time, the temperature is often set to be higher than the appropriate temperature, and the same problem occurs. As described above, the conventional air conditioner control device has a problem that comfort is impaired and energy saving is impaired by useless cooling and heating operations.

An object of the present invention is to solve the above-mentioned problems, and a first object of the present invention is to provide a control device for an air conditioner in which a user does not needlessly change a set temperature.

A second object of the present invention is to minimize adverse effects even if the user unnecessarily changes the set temperature.

[0012]

A first means for achieving the first object of the present invention is a heat source device state detecting means,
Operation mode detection means, operation state detection means for detecting whether the air conditioner is trying to lower, raise, or maintain the current temperature of the air-conditioned space from the heat source device state and the operation mode , and operation It is configured to include status display means.

[0013] A second means for achieving the second object is to provide a control apparatus for an air conditioner according to the first aspect of the present invention.
When the air conditioner is trying to lower the temperature of the air-conditioned space , the air conditioner detects the operating state of the air conditioner from the operation mode, and when the air conditioner is trying to raise the temperature of the air-conditioned space, A weighting means for ignoring the request for increasing the set temperature is provided.

[0014]

According to the first aspect of the present invention, the user is informed that the air conditioner is operating properly by the first means described above, and unnecessary changes in the set temperature are prevented, thereby improving comfort and the like. It is possible to provide a control device for an air conditioner without impairing energy saving.

Further, according to the configuration of the second means, the weighting means requests that the set temperature be lowered when the air conditioner is trying to lower the temperature of the air-conditioned space, and that the air conditioner is going to raise the temperature of the air-conditioned space. Sometimes the request to increase the set temperature is ignored, so that the user cannot change the set temperature excessively to the air conditioner that is operating properly, thereby preventing the comfort and energy saving performance from being impaired. Is what you can do.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

An operation changeover switch 1 for switching operation modes such as cooling and heating, an operation mode indicator 2 for displaying a current operation mode, and a setting switch 3 for setting temperature.
A set temperature display 4 for displaying a set temperature, an air flow switch 5 for switching an air flow, an air flow display 6 for displaying a current air flow, a communication port 7 connected to the air conditioner 15 main body, It has a status display 8 and a CPU 9 connected to each of them.

The operation mode detecting means 10 and the state detection of the heat source device
Both compressor state detecting means 11 as output means are connected to the communication port 7.

The operating state detecting means 12 connected to both the operating mode detecting means 10 and the compressor state detecting means 11 is further connected to the operating state display 8,
The operating state display means 13 is composed of these components.

As shown in FIG. 1, the control device 14 of the present air conditioner is different from the control device of the conventional air conditioner in that the air conditioner intends to lower or raise the temperature of the air-conditioned space. The operation state display means 13 for displaying whether the current state is to be maintained is added.

FIG. 2 shows an external view. With the above configuration, the operation mode detecting means 10 and the compressor state detecting means 1
1 is connected to the communication port 7, decodes a signal received from the air conditioner 15, and inputs the signal to the operating state detecting means 12.

The operating state detecting means 12 determines whether the air conditioner is trying to lower, raise, or maintain the current state of the air-conditioned space according to the flow chart of FIG. The operation state display 8 is driven based on the operation state to display the operation state.

The flow of FIG. 3 will be described. In step 21, it is determined whether or not the output of the compressor state detecting means 11 is OFF. If the result is OFF, the process proceeds to step 22, and if not, the process proceeds to step 23. What
The output of the compressor state detecting means 11 is inoperable.
In the case of failure, it is handled in the same way as OFF.
In the case of a failure in which F is impossible, it is handled as not being OFF.

In step 22, the operation status indicator 8 is driven to display the current status. In step 23, it is determined whether or not the output of the operation mode detecting means is cooling. If cooling, the process proceeds to step 24, and if heating, the process proceeds to step 25.

Step 24 drives the operating status indicator 8 to indicate that the temperature is to be lowered.

Step 25 drives the operating state indicator 8 to indicate that the temperature is to be raised.

As described above, according to the control device for the air conditioner of the first embodiment of the present invention, when the user changes the setting of the air conditioner, the current air conditioner lowers the temperature of the conditioned space. It is possible to distinguish the operating state of whether it is trying to increase, to raise, or to maintain the current status, so that unnecessary changes in the set temperature are prevented and the comfort and energy saving are impaired. It is possible to provide a control device for an air conditioner that does not have any problem.

The operation mode detecting means 10 of this embodiment
In the above, the signal received from the air conditioner main body 15 via the communication port 7 is decoded and input to the operating state detecting means 12. You may input into the detection means 12.

The compressor state detecting means 11 of this embodiment also decodes a signal received from the air conditioner body 15 via the communication port 7 and inputs the signal to the operating state detecting means 12. The state of the compressor may be detected from the power supply and input to the operating state detecting means. Also, the compressor status
If it is not possible to turn off, it outputs OFF and the compressor
Output ON if the status is a failure that cannot be turned OFF.
It may be.

Further, with respect to an air conditioner that does not depend on a compressor, the operating condition of the heat source unit of the air conditioner is controlled by the air conditioner.
Conditions that correspond to any of the operating conditions such as heating and cooling of the Japanese machine
If there is a heat source device status detection means to detect whether it is in a state
A similar effect can be expected .

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. As shown in the drawing, the weighting means 16 is connected between the setting switch 3 and the CPU 9 in the first embodiment, and the operating state detecting means 12 is connected to the operating state indicator 8 together with the weighting means 16. The same functional portions as in the first embodiment are assigned the same reference numerals as in the first embodiment, and detailed description is omitted.

When the operating state detecting means 12 outputs that the operating state is about to decrease the temperature, the CPU only issues a request other than a request to lower the set temperature from the setting switch.
9, when the operating state detecting means 12 outputs that the operating state is about to increase the temperature, only the request for increasing the set temperature from the setting switch is issued to the CPU.
9 and a weighting means 16 which has no effect in other cases.

As described above, according to the control apparatus for an air conditioner of the second embodiment of the present invention, the setting is made when the temperature of the air conditioner is about to be lowered in accordance with the operation state of the air conditioner. The air conditioner can ignore the request for lowering the temperature and the request for increasing the set temperature when the air conditioner is trying to increase the temperature of the conditioned space, and even if the user unnecessarily changes the set temperature, In addition, adverse effects on comfort and energy saving can be minimized.

[0034]

As is apparent from the above embodiments, according to the present invention, when the user changes the setting of the air conditioner, the current air conditioner attempts to lower the temperature of the conditioned space. An air conditioner that does not impair comfort and energy saving by preventing unnecessary changes in set temperature, etc. Can be provided.

In addition, an air conditioner control device which has an effect of reducing unnecessary deterioration of set temperature by a user in accordance with the operating condition of the air conditioner, thereby reducing the loss of comfort and energy saving. Can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control device for an air conditioner according to a first embodiment of the present invention.

FIG. 2 is an external view of the same.

FIG. 3 is a flowchart of the same.

FIG. 4 is a block diagram of a control device for an air conditioner according to a second embodiment of the present invention.

FIG. 5 is a block diagram of a conventional control device for an air conditioner.

FIG. 6 is an external view of the same.

[Explanation of symbols]

 13 Operating state display means 14 Control device for air conditioner 15 Air conditioner 16 Weighting means

Claims (2)

(57) [Claims] 1. An air conditioner that is trying to lower or raise the temperature of an air-conditioned space based on a heat source device state detecting means, an operation mode detecting means, and a heat source device state and an operation mode. Operating state detecting means for detecting whether the heat source
A control device for an air conditioner , wherein operating state display means is executed after detection means . 2. A request for lowering the set temperature when the air conditioner is trying to lower the temperature of the air-conditioned space by detecting the operation state of the air conditioner from the heat source device state and the operation mode.
The control device for an air conditioner according to claim 1, further comprising a weighting unit that ignores a request for increasing the set temperature when the temperature of the air conditioner is increasing.