JPH11159843A - Outer air temperature indicating/controlling method for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect and indicate the outer air temperature correctly while eliminating erroneous indication by detecting the outer air temperature a predetermined time after starting operation and updating the outer air temperature at a constant time width. SOLUTION: An operation starting time detecting means 71 detects the time Ti elapsed after starting operation of an air conditioner. The outer air temperature is not indicated until the time T1 reaches a set time Ta but 'outdoor detection' is indicated, for example. The outer air temperature is detected by an outer air temperature detecting means 72 at the first time when T1>=Ta is satisfied. Subsequently, the outer air temperature is indicated by an outer air temperature detecting means 74 while sampling constantly through an outer air temperature updating means 74. According to the arrangement, effect of air disturbance is suppressed immediately after starting operation and the outer air temperature can be indicated accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling the display of outside air temperature of an air conditioner.

[0002]

2. Description of the Related Art In a conventional method for controlling the display of the outside air temperature of an air conditioner, as shown in FIGS. 9 and 10, an outside air temperature detecting means 6 usually provided on the suction side of an outdoor heat exchanger.
1 to detect the outside air temperature (steps 11 and 12),
The outside air temperature is displayed by the outside air temperature display means 63 (step 13), and the changing outside air temperature is constantly updated by the outside air temperature updating means 62 (step 14) to display the outside air temperature.

[0003]

However, in the above-mentioned conventional configuration, the outside air temperature is accurately detected and displayed due to the turbulence of the air immediately after the start of operation or the sudden change in the outdoor climate (gust, etc.) during the operation. It was difficult.

[0004] When the compressor is stopped in the thermo-OFF or the timer mode during operation, the outdoor fan is also stopped. In this case, the outdoor fan is more susceptible to the influence of the outdoor climate and the like. It was difficult to accurately detect and display the information.

An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to accurately detect and display an erroneous outside air temperature without displaying it.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention detects the outside air temperature after a certain period of time from the start of operation, and further detects the outside air temperature within a certain period of time. It will be updated.

By using the above means, it is possible to improve the accuracy of the display temperature without being affected by the turbulence of the air immediately after the start of the operation or the sudden change in the outdoor climate (such as a gust) during the operation.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first aspect of the present invention is to detect the outside air temperature after a certain period of time from the start of operation. According to this configuration, the influence of air turbulence immediately after the start of operation is less likely to occur, and the accuracy of the display temperature can be improved.

According to a second aspect of the present invention, the outside air temperature is updated within a certain time width. According to this configuration, it is less likely to be affected by sudden changes in outdoor climate (gusts and the like) during operation, and the accuracy of the display temperature can be improved.

According to a third aspect of the present invention, when the outdoor fan is stopped, the outdoor fan is forcibly driven for a certain time, which is a certain time width, and the outside air temperature is detected and displayed during that time. It is to let. According to this configuration, a stable display of the outside air temperature is made possible by making it hard to be affected by a change in the outdoor climate or the like.

According to a fourth aspect of the present invention, even during the forced operation of the outdoor fan, the outside air temperature is detected and displayed after a certain period of time has elapsed from the start of driving. According to this configuration, it is made harder to be affected by the change of the outdoor climate and the like, and a more stable display of the outside air temperature becomes possible.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 First, a first embodiment of the present invention will be described with reference to FIGS.

The operation of the air conditioner starts (step 2).
1) The time T1 from the start of operation by the operation start time detecting means 71 is detected (step 22). Until T1 reaches the set value Ta, the outside temperature is not displayed (step 23), but is replaced by a display such as "outdoor detection".
Only when T1 ≧ Ta is satisfied, the outside air temperature is detected by the outside air temperature detecting means 72 (step 24),
Then, while always sampling by the outside air temperature updating means 73, the outside air temperature is displayed by the outside air temperature display means 74 (steps 25 and 26).

Embodiment 2 Next, a second embodiment of the present invention will be described with reference to FIGS.

The operation of the air conditioner starts (step 3).
1) The time T1 from the start of operation by the operation start time detecting means 81 is detected (step 32). Until T1 reaches the set value Ta, the outside air temperature is not displayed (step 33), but is replaced by a display such as "outdoor detection".
Only when T1 ≧ Ta is satisfied, the outside air temperature is detected by the outside air temperature detecting means 84 (step 34).
The outside air temperature is displayed by the outside air temperature display means 86 (step 35). In the subsequent update of the outside air temperature, the operation time T2 is detected by the operation time detection means 82, and the outside air temperature is displayed without updating the outside air temperature until T2 reaches the set value Tb. Then, when T2 ≧ Tb is satisfied, the outside air temperature is updated by the outside air temperature updating means 85, and the updated outside air temperature is displayed by the outside air temperature display means 86 (steps 34 to 38). At that time, the operation time T is set by the operation time reset means 83.
2 is reset, and the operation time is detected again.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS.

In the third embodiment, the structures 901 to 903 and 910 to 912 of the second embodiment (step 401)
-405 and 413-415) further compressor OFF
This corresponds to the detection of the outside air temperature during operation. When the compressor is stopped during normal operation, such as when the thermostat is turned off or the timer mode is stopped, the outdoor fan is also stopped. In this case, however, the outdoor fan is more susceptible to changes in outdoor climate, etc. It is difficult to display. Therefore, the compressor OFF operation detecting means 904, the compressor O
The time T3 during which the compressor is off is detected by the FF time detecting means 905 (step 406), and T3 is set to the set value T.
Until the temperature reaches c, the outside air temperature is not updated, and T3 ≧
Outdoor fan driving / stopping means 907 when Tc is satisfied
Thus, the outdoor fan is driven for a predetermined time Td (steps 407 to 409), the outside air temperature is updated by the outside air temperature updating means 911, and the highly accurate temperature is detected by the outside air temperature detecting means 912. The outdoor fan drive time T4 is detected by the outdoor fan drive time detecting means 908 (step 409), and when T4 ≧ Td is satisfied, the outdoor fan is stopped (step 410), and the compressor O
The compressor OFF time T3 and the outdoor fan drive time T4 are reset by the FF time reset means 906 and the outdoor fan drive time reset means 909 (Step 411).
The detection is performed again. If the compressor is turned on before the compressor off time T3 ≧ Tc is satisfied, the compressor off time T3 and the outdoor fan drive time T4 are reset (step 412), and the compressor is turned off every fixed operation time. The process shifts to outside air temperature update and detection.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS.

The fourth embodiment is different from the third embodiment in that the configuration 1001 to 1009 and 1011 to 1013 (steps 501 to 514 and 516) further includes a time setting value for sampling the outside air temperature during the outdoor fan forced drive. Te
Is provided. From the start of the outdoor fan forced drive, the outdoor fan drive time T4 detected by the outdoor fan drive time detection means 1008 is determined by the outdoor fan prescribed drive time detection means 1010 (step 515).
The outside temperature is not updated until T4 reaches the set value Te,
Outside temperature updating means 1012 when T4 ≧ Te is satisfied
The outside air temperature is updated by the
3 allows a highly accurate temperature to be detected. However, Te <
Let it be Td.

[0021]

As is apparent from the above embodiment, the invention according to claim 1 detects and updates the outside air temperature after a certain period of time from the start of the operation, so that the air temperature immediately after the start of the operation is reduced. It is possible to control the display of the outside air temperature with high accuracy of the display temperature by making the influence of the disturbance less likely.

According to the second aspect of the present invention, by detecting and updating the outside air temperature within a fixed time width, it is possible to prevent the outdoor air temperature (such as a gust) from being suddenly changed during operation. In addition, it is possible to perform an outside air temperature display control with a higher display temperature accuracy.

According to a third aspect of the present invention, when the outdoor fan is stopped, the outdoor fan is forcibly driven for a predetermined time width and for a predetermined time, during which the outside air temperature is detected and displayed. By doing so, it is less likely to be affected by changes in the outdoor climate and the like, and stable outdoor air temperature display control can be performed.

According to the fourth aspect of the present invention, even during the outdoor fan forced drive, by detecting and displaying the outside air temperature after a certain period of time has elapsed from the start of the drive, the influence of the outdoor climate change and the like can be further reduced. Thus, it is possible to perform more stable outside air temperature display control.

[Brief description of the drawings]

FIG. 1 is a control flowchart showing a first embodiment of the present invention.

FIG. 2 is a control flowchart showing a second embodiment of the present invention.

FIG. 3 is a control flowchart showing a third embodiment of the present invention.

FIG. 4 is a control flowchart showing a fourth embodiment of the present invention.

FIG. 5 is a control block diagram showing a first embodiment of the present invention.

FIG. 6 is a control block diagram showing a second embodiment of the present invention.

FIG. 7 is a control block diagram showing a third embodiment of the present invention.

FIG. 8 is a control block diagram showing a fourth embodiment of the present invention.

FIG. 9 is a control flowchart showing a conventional example.

FIG. 10 is a control block diagram showing a conventional example.

[Explanation of symbols]

 T1 operation start time T2 operation time T3 compressor OFF time T4 outdoor fan drive time Ta specified operation start time Tb specified operation time Tc specified compressor OFF time Td specified outdoor fan drive stop decision time Te specified outdoor fan drive time

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Masaki Yamamukai 1006 Kazuma Kadoma, Osaka Pref.Matsushita Electric Industrial Co., Ltd. (72) Inventor Takehiko Nitta 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. An outside air temperature detecting means located on a suction side of an outdoor heat exchanger for detecting an outside air temperature, an outside air temperature updating means for constantly updating an outside air temperature, and detecting and updating the detected outside air temperature. An outside air temperature display control method for an air conditioner comprising an operation start time detecting means for detecting a time from the start of operation of an air conditioner having an outside air temperature display means for displaying. 2. The method according to claim 1, further comprising operating time detecting means and operating time resetting means. 3. A compressor OFF operation detecting means and a compressor OF
3. The method for controlling the display of the outside air temperature of an air conditioner according to claim 2, further comprising an F time detecting means, a compressor OFF time resetting means, an outdoor fan driving / stopping means, an outdoor fan driving time detecting means, and an outdoor fan driving time resetting means. . 4. The method according to claim 3, further comprising means for detecting a specified driving time of the outdoor fan.