JPH01252850A - Display device for airconditioner - Google Patents

Abstract

PURPOSE:To make it possible to use an airconditioner with reliability, by allowing a display means to index the lapse of time required from the present room temperature to a preset room temperature or the operating status up to the preset room temperature from the start of operation. CONSTITUTION:Preset temperature arrival time indicators 12 and 13 comprise LED of seven segments and the like, and indicate time index required until a room temperature has reached a preset value. For example, when an operation change over slide switch 2 is set to cooling at a room temperature of 30 deg.C, and a room temperature setting slide switch 1 is set to 26 deg.C, then cooling operation is carried out, the temperature of the room under airconditioning is gradually lowered by a compressor 9 and a ventilation fan 8. The temperature and humidity at that time are detected by a temperature sensor 10 or a humidity sensor 11. The thus detected values are stored in a microcomputer A. As a result, indicators 4, 5, and 6, which indicate a temperature difference between the preset room temperature and the room temperature, and the time index indicators are lit up.

Description

[Detailed description of the invention] [Industrial application field 1 The present invention relates to a display device for an air conditioner.

[Prior Art] FIG. 11 is a front view of a conventional air conditioner operation panel with a display as shown in, for example, Japanese Utility Model Application Publication No. 61-86635, in which 1 is a slide switch for setting the room temperature;
2 is an operation selection slide switch, 3 is an operation indicator consisting of an LED that lights up during operation, and 4, 5.6 are LETs that display different temperature differences between the set room temperature and the room temperature, respectively.
).

FIG. 12 is a block diagram showing the configuration of a control unit and a display unit in a conventional air conditioner, where 7 is a combination controller that controls the whole, 8 is a blower fan, 9 is a compressor, and 10 is a temperature sensor. , 11 is a humidity sensor.

Next, the operation will be explained. For example, when the room temperature is 30°C, the operation selector slide switch 2 is set to cooling, the room temperature setting slide switch 1 is set to 26°C, and the air conditioner is operated for cooling, the compressor 9, blower fan 8, etc. As a result of this action, the room temperature in the air-conditioned room gradually decreases. The temperature and humidity at this time are detected by the temperature sensor 10 and the humidity sensor 11 and taken into the microcomputer 7. Here, a display 4 that displays the temperature difference between the set room temperature and the room temperature,
Regarding 5°6, lighting control can be performed under the following conditions, for example.

■,...1T-1,z2°C, the display 6 is turned on.

2. When 2°C>IT-T and l≧BIC, the display 5 is turned on.

3,...l When T-Tl + < 1°C,
Turn on the display 4.

Here, T: Room temperature T,: Set room temperature In other words, by knowing the lighting status of indicators 4 and 5.6, it is easy to check to what extent the current room temperature satisfies the target with respect to the set room temperature. be able to.

Problem 1 to be Solved by the Invention Since the conventional air conditioner display device is configured as described above, the room temperature will eventually reach the set temperature as time passes. Users are unable to know how long it will take to reach that point, and may have to wait in vain until the set temperature is reached. There were problems such as giving people a sense of mental distrust.

Additionally, if an air conditioner is mistakenly used in a room that is being air conditioned beyond its capacity, the room temperature will not reach the set temperature and the user will have to wait in vain. Therefore, there was a problem in that it was not possible to judge whether the capacity of the air conditioner was appropriate for the load.

This invention was made to solve the above-mentioned problems, and provides a display device for an air conditioner that allows you to know the time it takes for the room temperature to reach the set temperature or the operating status, and allows you to use the air conditioner with peace of mind. The purpose is to obtain.

[Means for Solving the Problems 1] A display device for an air conditioner according to the present invention is provided with: 1. a display unit that indicates the time until the room temperature reaches a set temperature or the operating status;

[Function 1] In this invention, the display means indicates the time from the current room temperature to the set room temperature, or the operating status from the start of operation until the set room temperature is reached. It becomes possible to grasp the situation and use the air conditioner with peace of mind.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 to 4 show a first embodiment of a display device for an air conditioner according to the present invention, which is capable of displaying an indicator of the time required to reach a set room temperature.

FIG. 1 is a front view of the operation panel of the air conditioner in this embodiment, and as in the conventional case, there are slide switches 1 for setting the room temperature. Operation selection slide switch 2. Operation indicator 3
．． It has temperature difference indicators 4, 5.6. Also, 12.
Reference numeral 13 denotes a set temperature arrival time indicator newly added in this embodiment, which is composed of 7-segment LEDs and the like, and is used to display an indicator of the time required to reach the set room temperature.

FIG. 2 is a block diagram showing the connection relationship between the control section and the display section of the air conditioner in the first embodiment.

In the figure, the microcomputer 7A has a microcomputer 7A that controls the air conditioner and the entire display section.
A is a blower fan 8 which is controlled by the calculation command.
The compressor 9, the temperature difference display 4.5.6, the time index display 12.13, and the operation display 3 are connected to each other, and the microcomputer 7A detects the room temperature and humidity.
Temperature sensor manually operated 10. and humidity sensor 11, and slide switches 1 and 2 for setting room temperature and operation mode.
is connected.

Next, the operation will be explained. For example, at a room temperature of 30°C,
When the operation selection slide switch 2 is set to cooling and the room temperature setting slide switch 1 is set to 26°C to perform cooling operation, the compressor 9, blower fan 8, etc.
As in the past, the room temperature of the air-conditioned room gradually decreases. Further, the temperature and humidity at this time are detected by the temperature sensor 10 and the humidity sensor 11, and are taken into the microcomputer 7A. Accordingly, the display devices 4, 5.6 and the time indicator display device 12.13, which display the temperature difference between the set room temperature and the room temperature, are controlled to light up according to the procedure shown in the flowchart of FIG.

That is, after the operation control of the air conditioner by the microcomputer 7A is started, when an interrupt for display is periodically generated, step S is started from the RESTART position.
1 and subsequent processes are executed.

First, in step S1, it is determined whether the operating mode is cooling. Here, when the air conditioner is not in the cooling mode, that is, in the heating or dry operation mode, the process shifts to a process not shown. Furthermore, when it is determined that the air conditioner is being cooled, the process proceeds to step S2, where the microcomputer 7A samples the room temperature that changes moment by moment at regular intervals, and the transition of temperature change after the start of operation is recorded in the microcomviator 7A. stored in memory.

In the next step S3, it is determined whether the temperature difference indicator 6 is lit. Here, the microcomputer 7A calculates the difference between the room temperature T detected by the sensor 10 and the set room temperature TE set by the slide switch l, and the result is calculated by the IT-T
Determine whether the temperature is E122°C. Here, ITTEI≧
When it is determined that the temperature is 2°C, the display 6 lights up and the process moves to step S4 to predict the time required to reach the set room temperature. That is, the time t required to reach the set room temperature under predetermined conditions obtained from the transition of temperature changes obtained by sampling, that is, the relationship between the temperature changes sampled so far and time, is calculated. A rough predicted value is obtained, and the predicted value is displayed by lighting the display 12. Thereafter, the process moves to the cooling processing routine shown in step S8.

Further, in step S3, the display 6 does not light up.
That is, when it is determined that IT-TEI<2°C, the process proceeds to step S5, and it is determined whether the temperature difference indicator 5 is lit. Here, the detected room temperature T from the sensor 10 and the set room temperature T
It is determined whether the difference from E is IT-TF+≧1'C. When the IT-TE temperature is 151°C, the display 5 lights up and the process moves to step S6 to predict the time required to reach the set room temperature. That is, the required time t is calculated under certain conditions obtained from the relationship between temperature change and time that has been sampled so far, a predicted value is obtained, and this is displayed on the display 13.

Further, when it is determined in step S5 that 1TTtl≧VC, the process proceeds to step S7, and it is determined whether the temperature difference indicator 4 is lit.

That is, when it is determined that l T-T, l < 1°C, the indicator 4 lights up. Regardless of whether the determination result in step S7 is lighting or non-lighting, the process moves to step S8 to perform the cooling process.

Figure 4 is a graph showing the relationship between temperature and time. The transition of temperature change after the start of operation can be roughly predicted based on temperature samples taken at regular intervals under certain conditions. can. Or can be specified in advance.

Therefore, based on this prediction, when the IT-TEl≧2°C condition is reached, an indicator of the time required to reach the ITTEI≧1°C condition can be indicated by lighting the display 12.

Similarly, when +T-T, l≧BiC, from now on I
By lighting up the display 13, an indicator of the time required to reach the state of T-T, l<ioC can be shown.

Note that for the indicator of the required time to be output on the display 12, 13, a value that can be easily correlated with real time can be selected.

In addition, although the above embodiment shows a case where the indicator of the required time is displayed in response to the display of the temperature difference between the set room temperature and the room temperature, the display of the temperature difference and the display of the indicator of the required time are not necessarily one-to-one. There may be a processing procedure that does not correspond to the above.

In this embodiment as described above, since the time indicator until the set room temperature is reached can be displayed, the reliability of the device increases and the device can be used with peace of mind.

Figures 5 to 10 show a second embodiment of the air conditioner display device according to the present invention, which is capable of displaying indicators of the operating status from the start of operation until the set room temperature is reached. It is.

FIG. 5 is a front view of the operation panel of the air conditioner in this embodiment, and similarly to FIG. 1, the slide switches 1 for setting the room temperature. Operation selection slide switch 2. It has temperature difference indicators 4, 5.6.

In addition, 14, 15, and 16 are indicators for operating status indicators newly added in this embodiment, which are composed of LEDs, etc., and indicate the operating status of the air conditioner until the set room temperature or the vicinity of the room temperature is reached. is displayed in three stages.

FIG. 6 is a block diagram showing the connection relationship between the control section and the display section of the air conditioner in the second embodiment.

In the figure, the microcomputer 7B has a microcomputer 7B that controls the air conditioner and the entire display section.
A blower fan 8.B is controlled by the calculation command.
The compressor 9 and the temperature difference display 4.5.6 are connected to the operating status indicator 14.15.16, respectively, and temperature sensors 0 and 16 are connected to the compressor 9 and the temperature difference display 4.5.6, respectively, and the temperature sensors 0 and 16 are connected to each other to detect room temperature and humidity and input them to the microcomputer 7B. A humidity sensor 11 is connected to slide switches 1 and 2 for setting room temperature and operation mode.

Next, the operation of this embodiment configured as described above will be explained.

For example, when the room temperature is 30°C, the operation selector slide switch 2
Set to cooling, and set the room temperature setting slide switch 1 to 26°.
When the air conditioner is set to C and the cooling operation is performed, the room temperature of the air-conditioned room gradually decreases due to the actions of the compressor 9, the blower fan 8, etc., as in the conventional case.

Further, the temperature and humidity at this time are detected by the temperature sensor IO and the humidity sensor 11, and are taken into the microcomputer 7B. Along with this, indicators 4 and 5.6 that display the temperature difference between the set room temperature and the room temperature, and an operating status indicator display 1
4, 15, and 16 are controlled to light according to the means shown in the flowchart of FIG.

That is, after the operation control of the air conditioner by the microcomputer 7B is started, when an interrupt for display occurs periodically, step Sl.
Processing after O is executed.

First, in step 310, it is determined whether the operating mode is cooling. Here, when the air conditioner is not in the cooling mode, that is, in the heating or dry operation mode, the process shifts to a process not shown. If it is determined that the air conditioner is being cooled, the process proceeds to step 11, and the microcomputer 7
, and the transition of temperature change after the start of operation is stored in the memory in the microcomputer 7B.

In the next step 312, it is determined whether the temperature difference indicator 6 is lit. Here, the room temperature T detected by the sensor 10 is
The microcomputer 7B calculates the difference between the temperature and the set room temperature T set by the slide switch 1, and the result is sent to IT-
It is determined whether the temperature is T1122°C. Here, ITTtl
When it is determined that ≧2° C., the display 6 lights up and the process moves to step S13 to obtain a predicted value, and executes a process of displaying an index of the operating state of the air conditioner from this predicted value.

Incidentally, the transition of temperature change after the start of operation is predicted and calculated by the microcomputer 7B under certain conditions based on the temperature sampled at certain time intervals, and is calculated as a characteristic graph as shown in Fig. 8. can be predicted. For example, the time at which the temperature is T can be determined as a predicted value based on the temperature T at time t1 and the temperature T2 at time Lx.

Therefore, this predicted value can also be obtained by using, for example,
Time t from the start of operation until the room temperature becomes almost stable,
divided into three equal parts, and display units 14 and 15.1 corresponding to each
By controlling the lighting of 6, the operating status of the air conditioner is displayed as an indicator.

That is, as shown in FIG. 8, at the initial stage when the elapsed time t from the start of operation is between O≦t<1/3ts, the indicator 14 lights up.

Further, when the elapsed time t is intermediate between 1/3 t s≦L<2/3 t, the indicator 15 lights up.

Furthermore, the elapsed time t is 2/3 t, S≦L≦t.

During the stable period between the two, the indicator 16 lights up.

On the other hand, when the temperature difference becomes 2°C or less as the cooling operation progresses and the determination in step S12 is NO, step S1
Proceeding to step 4, it is determined whether the temperature difference indicator 5 is lit. Here, it is determined whether the difference between the detected temperature T from the sensor 10 and the set room temperature T is 2'C>ITTE121°C. Therefore, when ITTEI≧2°C, the display 5 lights up, and the process proceeds to step S13, where an index display process of the air conditioner operating state with respect to the elapsed time is performed.

After that, the temperature inside the air-conditioned room decreases and the temperature difference is 1"C.
If the temperature difference is below, the process proceeds to step S15, and it is determined whether the temperature difference indicator 4 is lit. That is, the microcomputer 7B takes in the detected temperature T from the sensor IO, compares it with the set room temperature TE, and determines whether 1'>T and l<1°C. If it is determined that 1<BIC, then the display 4 lights up, and the process proceeds to step S13, where an index display process of the operating state of the air conditioner with respect to the elapsed time is performed. Then, when the process in step S13 is completed and the determination result in step S15 is No, step 316
The process advances to the cooling processing routine shown in , and cooling processing is performed.

In this way, the indicators 4, 5.6 and the indicator 14.1
The operating state of the air conditioner can be known from the lighting state of 5.16.

That is, when the display 6 is lit and the display 14 is lit,
The initial state of ≦L<1/3ts indicates that the air conditioner is operating properly.

In addition, the i/3 display device 5 and display device 15 both light up.
The middle period of t ≦ 2/3 ts indicates that the air conditioner is operating properly.

Furthermore, both the display 4 and the display 16 are lit.
The stable period of /3ts≦t≦L is an indicator that the operation of the air conditioner is in a proper operating state.

゛ Table 1 shows display 4, 5.6 and display 14゜15
．． By combining the 16 lighting results, it is possible to indicate whether the air conditioner is being used properly or improperly.

Table 1 As is clear from Table I, it can be determined whether the air conditioner is being used appropriately or inappropriately from the lighting state of each indicator under each condition. This means that when the air conditioner is used in a room that exceeds its capacity, it is possible to easily understand why the room temperature does not reach the set temperature for a long time, and it is possible to ensure the comfort and economy of air conditioning. This will increase your confidence in the air conditioner and allow you to use it with confidence.

In addition, Fig. 9 and Fig. 10 are temperature characteristic diagrams showing an example of application when determining the usage status of the display device. It is a state diagram of ■-(C) of Table I.

In addition, in the above embodiment, the case where the indicator of the operating state is displayed in response to the display of the temperature difference between the set room temperature and the room temperature was shown, but the display of the temperature difference and the display of the indicator of the operating state are not necessarily the same. A processing procedure that does not correspond to pair 1 may be used.

Since the system is configured to display indicators such as the time it takes to reach room temperature or the operating status, the air conditioning status can be grasped, increasing confidence in the air conditioner and allowing it to be used with peace of mind.

[Brief explanation of the drawing]

FIG. 1 is a front view of an operation panel with air all Japanese display according to the first embodiment of the present invention, and FIG. 2 is a block diagram showing the connection relationship between the control section and the display section of the air conditioner according to the first embodiment. , FIG. 3 is a flow chart showing the display processing procedure in the first embodiment, FIG. 4 is a characteristic diagram showing the relationship between time and temperature in the first embodiment, and FIG. 5 is a flowchart showing the display processing procedure in the first embodiment. 6 is a block diagram showing the connection relationship between the control section and the display section of the air conditioner in the second embodiment, and FIG. 7 is a display processing in the second embodiment. A flowchart showing the procedure, FIG. 8 is a characteristic diagram showing the relationship between time and temperature in the second embodiment, and FIGS. 9 and 10 are application examples when determining the usage status of the display device in the second embodiment. FIG. 11 is a front view of an operation panel with a display of a conventional air conditioner, and FIG. 12 is a block diagram showing the connection relationship between the control section and the display section of the air conditioner. 1...Slide switch for setting room temperature, 2...Slide switch for operation selection, 4,5.6...Temperature difference indicator,
7A, 7B...Microcomputer, 10...Temperature sensor, 11...Humidity sensor, 12.13... Set room temperature arrival time indicator indicator, 14, 15.16... Operating status indicator. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In an air conditioner that has multiple indicators that display the difference between the specified set room temperature and the current room temperature that changes from time to time, the time until the room temperature reaches the set temperature corresponding to the display A display device for an air conditioner comprising display means for displaying time or operating status as an indicator.