KR19980084136A - How to determine operation mode of multi-chamber air conditioner - Google Patents

Abstract

The present invention relates to a method of judging the operation mode of a multi-chamber air conditioner, which enables the operation mode to be determined by temperature change without performing signal exchange between the outdoor unit and the indoor period, and to perform the operation control operation accordingly. Starting by entering the operation mode, recognizing the operation mode of the other room other than the indoor unit, comparing the operation mode of the indoor room unit with the operation mode of the other room indoor unit, different operation between the room and the room based on the result of the operation mode comparison Since it is determined that the mode is the operation mode of the indoor unit indoor operation, so that it can improve the reliability and can lower the cost of the product.

Description

How to determine operation mode of multi-chamber air conditioner

The present invention relates to an air conditioner, and more particularly, to a method of determining an operation mode of a multi-chamber air conditioner.

In general, air conditioners are classified into cooling, heating, and heating / cooling units, each of which is divided into a unitary type and a separate type, among which a separate type air conditioner is connected to a single coupling type in which the outdoor unit and the indoor unit are connected one-to-one. It consists of a multi-bond type (henceforth a multi thread type).

At this time, the outdoor unit is composed of a compressor, a condenser and four sides as a means for converting the heat of the outdoor, the indoor unit is composed of an evaporator and a fan as a means for converting the indoor heat.

The air conditioner is operated in cooling, heating, and artificial intelligence mode according to a user's command input.

For example, when the user inputs the AI mode command, the cycle is automatically operated according to the season. In summer, the cycle is operated by evaporation → compression → condensation → expansion. It is operated by heating cycle of heat pump which is reversely circulated by refrigerating cycle by switching to.

And since the multi-chamber air conditioner has one outdoor unit, heterogeneous operation, that is, two indoor units cannot simultaneously perform cooling and heating cycles.

As described above, in the air conditioner provided with one outdoor unit and three indoor units (first, second and third indoor units), the first and second indoor units are operating in the same operation mode, and the third indoor unit is operated. If it is not assumed, the method of determining the operation mode in the third indoor unit is as follows.

First, when the user inputs an arbitrary operation mode to the third indoor unit, the third indoor unit outputs operation data corresponding to the user operation mode to the microcomputer of the outdoor unit.

The outdoor unit compares and determines whether operation data indicating an operation state of another indoor unit stored in the microcomputer and operation data of the third indoor unit are the same operation or heterogeneous operation.

At this time, when the operation mode of the indoor period is the same, the refrigerant is transferred by opening a flow path from the outdoor unit to the third indoor unit according to the same operation mode.

However, when the operation mode of the indoor period is heterogeneous operation, data about the heterogeneous operation from the outdoor unit is received in the third indoor unit and displayed as heterogeneous operation with other indoor units, and at the same time, the third indoor unit is heterogeneous with other indoor units. Since the operation, the input operation mode is automatically stopped.

As another example of a conventional operation mode determination method of a multi-chamber air conditioner, an air conditioner heterogeneous operation control method for controlling an operation mode based on an outdoor temperature when a heterogeneous operation signal is input from each indoor unit ( Application number P94-10209) compares the reference temperature and the outdoor temperature for the heterogeneous operation when the mode data for the heterogeneous operation is input from the other indoor unit during the operation in the arbitrary mode. Or determine whether the operation is heterogeneous, and performs the appropriate operation mode corresponding thereto.

As another example, an air conditioner capable of simultaneously cooling and heating can be realized in Korean Patent Application No. 90-1134, Japanese Patent Application Laid-Open No. 5-118625, and Japanese Patent Application Laid-Open No. 4-371763.

That is, the above-described prior art (domestic patent application No. 90-1134, Japanese Laid-Open Patent Publication No. 5-118625, Japanese Laid-Open Patent Publication No. 4-371763) grasps the load variation of the other indoor unit in its indoor unit and determines whether or not the load is changed. Therefore, to operate the same as other indoor units.

If the other indoor unit is operating in an arbitrary operation mode, the indoor unit detects the operating load of the other indoor unit and switches to the operation mode of the other indoor unit regardless of its own operation mode to perform the same operation mode.

Embodiments of the multi-chamber air conditioner according to the related art as described above transmit and receive the operation mode-related signal between the outdoor unit and the indoor period, and determine the operation mode according to the outdoor temperature or operate according to the change of load based on this. Control operations such as switching modes are performed.

Embodiments of a multi-chamber air conditioner according to the prior art have the following problems.

First, since a communication line is used to transmit and receive a driving mode related signal, when a plurality of indoor units are used, its configuration and installation are complicated and costs are increased.

Second, when transmitting data through multiple communication lines, data transmission error may occur because perfect transmission and reception are impossible, and thus an abnormal phenomenon of the system may occur due to impossible operation mode detection.

Third, if the operation mode of other indoor unit is detected by detecting the load variation, it is undesired operation because the operation mode of the indoor unit is changed to the operation mode of other indoor unit unconditionally even though the operation mode of the other indoor unit is heterogeneous operation. There is a problem of operating in the mode.

Accordingly, the present invention has been made to solve the above-mentioned problems. As a result, the multi-room air can be used to determine the operation mode according to the temperature change without signal exchange between the outdoor unit and the indoor period, and to display the operation mode to the control operation and the user accordingly. It is an object of the present invention to provide a method of determining an operation mode of a harmonic.

1 is a flowchart illustrating a method of determining an operation mode of a multi-chamber air conditioner according to the present invention.

The present invention starts by inputting an arbitrary operation mode into the indoor room of the air conditioner, recognizing the operation mode of the other room indoor unit other than the indoor unit, comparing the operation mode of the indoor room unit with the operation mode of the other room indoor unit, operation It is characterized in that it comprises a step of operating in the operation mode of the indoor room indoor judging the different operation mode between the room and the other room according to the mode comparison result.

Hereinafter, an operation mode determination method of a multi-chamber air conditioner according to the present invention will be described with reference to the accompanying drawings.

1 is a flowchart illustrating a method of determining an operation mode of a multi-chamber air conditioner according to the present invention.

In the method of determining a driving mode of the multi-room air conditioner according to the present invention, as shown in FIG. 1, when a user first sets a driving mode through an input device of an indoor unit selected from a plurality of indoor units, the indoor unit according to the set driving mode Start driving (S11).

Then, the microcomputer of its indoor unit (hereinafter, referred to as fruit room) first recognizes whether the determination of the operation mode of the indoor unit (hereinafter, referred to as other room) in operation is completed (S12).

When the operation mode determination is not completed, the pipe temperature of the fruit room is compared with X1 ° C. (S13).

At this time, the X1 ℃ is the normal fruit room piping temperature to determine the heating mode of the other room when the other room to perform the heating operation, typically set the piping temperature of the room room to about 40 ℃.

Subsequently, in the comparison, if the piping temperature of the own room is X1 ° C. or more, the operation mode of the other room is determined as heating, whether the operation mode of the room is set to the artificial intelligence mode (S27) and whether the operation mode of the room is set to the heating mode. It is determined whether or not (S28).

If the operation mode of the own room is the AI operation mode or the artificial intelligence operation mode, but not the heating operation, since the operation mode of the own room is the same as the operation mode of the other room in operation previously performs the same operation (S30).

Contrary to the above, if the operation mode of the fruit room is not the AI operation mode or the heating operation mode, it is a heterogeneous operation because it is a different operation mode from other rooms, and the operation mode input to the fruit room is canceled and the indication of heterogeneous operation is displayed. (S32).

On the other hand, if the piping temperature of the fruit room is lower than X1 ° C and lower than X2 ° C (S13, S14), it is determined that the operation mode of the other room is a perfect cooling mode state, the fruit room according to the cooling operation regardless of the operation mode of the fruit room It is determined whether the operation mode of the artificial intelligence operation (S23) or the operation mode of the room is cooling (S24).

At this time, X2 ℃ is the pipe temperature of the circulating refrigerant determined by the own room when the other room is performing the cooling operation, it is typically set to the pipe temperature of the refrigerant '-5 ℃'.

In the determination, if the operation mode of the own room is the artificial intelligence operation mode or the cooling operation even if not the artificial intelligence operation mode, the operation of the same mode is performed because the operation mode of the own room is the same as the operation mode of the other room in operation (S30). ).

Contrary to the above, if the operation mode of the fruit room is not the AI operation mode or the cooling operation mode, it is determined that the operation mode of the fruit room is different from the operation mode of the other room. To display (S31).

When the piping temperature of the fruit room is lower than X1 ° C. and belongs to an intermediate temperature range higher than X2 ° C. (S13 and S14), the compressor operation command is output to cause the refrigerant to be circulated so that the refrigerant is circulated (S15). It is determined whether the operation mode of the own room input by the user is cooling or heating (S16).

If the operation mode of the fruit room is cooling, immediately measure the pipe temperature (T1) of the fruit room (S18), if the operation mode of the fruit room is switched to the four sides of the reverse cycle cycle, that is, heating cycle (S17), The pipe temperature T1 of the fruit room is measured (S18).

Subsequently, the circulating operation of the refrigerant by the compressor is performed for a predetermined time (S19), and after the time elapses, the pipe temperature T2 of the fruit room is measured accordingly (S20).

As such, when the temperature values of the refrigerant circulated to the indoor unit are measured, large and small sizes are determined between the pipe temperatures T1 and T2 of the own room (S21).

Here, when T1 of the pipe temperature is large, it is again determined whether the difference T1-T2 of the pipe temperature is larger than a predetermined temperature value ΔT (S22).

In the judgment, if the difference (T1-T2) of the pipe temperature is larger than the predetermined temperature value (ΔT), it is determined that the operation mode of the other room is the cooling operation mode, whether the operation mode of the own room is the artificial intelligence mode, It is tested whether the mode is cooling (S23, S24).

Subsequently, when the operation mode of the own room is the artificial intelligence mode and the cooling operation mode, it is determined that the operation mode of the own room is the same operation mode as the operation mode of the other room, and the same room operation is performed in the same manner as the operation state of the other room (S30). ), If the operation mode is not the artificial intelligence mode and the cooling operation mode, the cooling operation mode of the own room is canceled, and at the same time, the other room is displayed that the room and the heterogeneous operation (S31).

The predetermined temperature value [Delta] T is an amount of change in pipe temperature that is changed by heating or cooling operation, and is usually about 10 占 폚.

On the other hand, if the predetermined temperature value ΔT is large in comparing the difference T1-T2 between the fruiting pipe temperature and the predetermined temperature value ΔT, it is determined whether the pipe temperature T2 is larger than X3 ° C obtained by the experimental value (S25). ).

At this time, the experimental value temperature X3 ℃ represents the minimum limit of the heating temperature operated in the indoor unit, it is usually set to about 30 ℃.

Subsequently, when the pipe temperature T2 is large, the operation mode of the other room is recognized as heating to determine whether the operation mode of the own room is set to the artificial intelligence mode (S27) and whether the operation mode of the own room is set to the heating mode (S28). .

If the operation mode of the own room is the AI operation mode or the artificial intelligence operation mode, but not the heating operation, since the operation mode of the own room is the same as the operation mode of the other room in operation previously performs the same operation (S30).

Contrary to the above, if the operation mode of the fruit room is not the AI operation mode or the heating operation mode, it is a heterogeneous operation because it is a different operation mode from other rooms, and the operation mode input to the fruit room is canceled and the indication of heterogeneous operation is displayed. (S32).

However, if the experimental value temperature X3 ° C is large, it is determined that the operation mode of the other room is the cooling operation mode, and it is tested whether the operation mode of the own room is the artificial intelligence mode or the operation mode of the own room (S23, S24).

Subsequently, when the operation mode of the own room is the artificial intelligence mode and the cooling operation mode, it is determined that the operation mode of the own room is the same operation mode as the operation mode of the other room, and the same room operation is performed in the same manner as the operation state of the other room (S30). ), If the operation mode is not the artificial intelligence mode and the cooling operation mode, the cooling operation mode of the own room is canceled, and at the same time, the other room is displayed that the room and the heterogeneous operation (S31).

As a case different from the above process, if the pipe temperature T2 becomes large in large and small plate sizes between the pipe temperatures T1 and T2 of the fruit room, the difference between the pipe temperatures calculated as T2-T1 is the predetermined temperature value ΔT. It is determined whether it is larger (S26).

Predetermined temperature value (DELTA) T here is about 10 degreeC similarly to the above.

In the judgment, if the difference T2-T1 of the pipe temperature is greater than the predetermined temperature value ΔT, it is determined that the operation mode of the other room is the heating operation mode, and whether the operation mode of the own room is the artificial intelligence mode or the operation of the own room. It is tested whether the mode is cooling (S27, S28).

Subsequently, when the operation mode of the own room is the artificial intelligence mode and the heating operation mode, it is determined that the operation mode of the own room is the same operation mode as the operation mode of the other room, and the same room operation is performed in the same manner as the operation state of the other room (S30). When the operation mode is not the artificial intelligence mode and the heating operation mode, the heating operation mode of the own room is canceled, and at the same time, the other room is displayed as the room and heterogeneous operation (S32).

On the other hand, if the predetermined temperature value ΔT is large in comparison between the difference T2-T1 of the fruiting pipe temperature and the predetermined temperature value ΔT, it is determined whether the pipe temperature T2 is larger than X4 ° C. determined by the experimental value (S29). ).

At this time, the experimental value temperature X4 ℃ represents the maximum limit value of the cooling temperature operated in the indoor unit, and is usually set to about 20 ℃.

Subsequently, when the pipe temperature T2 is large, the operation mode of the other room is recognized as cooling to determine whether the operation mode of the own room is set to the artificial intelligence mode (S23) and whether the operation mode of the own room is set to the heating mode (S24). Therefore, the rest of the algorithm is performed in the same manner as described above.

The operation mode determination method of the multi-chamber air conditioner according to the present invention has the following effects.

First, since the operation mode is directly determined by measuring the temperature of the pipe and the operation control operation is performed accordingly, the error occurrence rate of the air conditioner operation can be minimized to improve reliability.

Second, since the communication line is not used, it can be widely applied regardless of the increase and type of indoor nose.

Third, since the communication line and its additional components are not used, it is easy to install, regardless of the installation place, and the manufacturing and installation costs can be significantly reduced, thereby reducing the cost of the product.

Claims (17)

Starting by entering an arbitrary operation mode in the indoor room of the air conditioner; Recognizing a driving room indoor mode other than the indoor unit; Comparing the operation mode of the indoor indoor unit with the recognized operation mode of the other room indoor unit; It is determined that the same operation mode between the room and the other room according to the comparison result to operate in the operation mode of the indoor room indoor unit or determine that the operation mode is different, comprising the step of stopping the operation of the indoor room indoor room How to determine the operation mode of the unit. The method of claim 1; Recognizing other room indoor unit operation mode other than the indoor unit Determining whether a driving mode determination of the other room indoor unit in operation is completed; Measuring piping temperature 'T1' of the own room according to a determination result of the step of determining whether the operation mode determination of the other room indoor unit is completed; The 'T1' is a method of determining the operation mode of the multi-chamber air conditioner, characterized in that it comprises a step of sequentially comparing the X1 ℃ and X2 ℃ to determine the operation mode of the other room. The method of claim 1; Recognizing other room indoor unit operation mode other than the indoor unit Determining whether a driving mode determination of the other room indoor unit in operation is completed; Measuring the pipe temperature 'T1' of the own room if the operation mode determination of the other room indoor unit is not completed; Determining that the operation mode of the other room is heating when the 'T1' is greater than or equal to X1 ° C; If the 'T1' is less than or equal to X2 ℃ operating mode determination method of the multi-room air conditioner comprising the step of determining that the operation mode of the other room is cooling. The method of claim 1; Recognizing other room indoor unit operation mode other than the indoor unit Determining whether a driving mode determination of the other room indoor unit in operation is completed; Measuring the pipe temperature 'T1' of the own room if the operation mode determination of the other room indoor unit is not completed; Measuring the pipe temperature 'T2' of the fruit room after a predetermined time by operating the compressor if the 'T1' is not above X1 ° C but below X2 ° C; Comparing the 'T1' and 'T2' step of determining the operation mode of the other room according to the comparison result characterized in that the operation mode determination method of the multi-room air conditioner. The method of claim 4; After the compressor is driven for a certain time, the step of measuring the piping temperature 'T2' of the fruit room is Method of determining the operation mode of the multi-chamber air conditioner, characterized in that for operating the compressor and the four sides when the operation mode of the room is heating and measuring the 'T2' after a certain time. The method of claim 1; Recognizing other room indoor unit operation mode other than the indoor unit Determining whether a driving mode determination of the other room indoor unit in operation is completed; Measuring the pipe temperature 'T1' of the own room if the operation mode determination of the other room indoor unit is not completed; Determining that the operation mode of the other room is heating when the 'T1' is greater than or equal to X1 ° C; Determining that the operation mode of the other room is cooling when the 'T1' is less than or equal to X2 ° C; Measuring a pipe temperature 'T2' of the fruit room after the compressor is operated for a predetermined time; Comparing the 'T1' and 'T2' step of determining the operation mode of the other room according to the comparison result characterized in that the operation mode determination method of the multi-room air conditioner. The method of claim 6; Determining the operation mode of the other room according to the comparison result of the 'T1' and 'T2' Determining whether 'T1' is 'T2' or more; Determining whether a difference between 'T1' and 'T2' is greater than or equal to 'ΔT' according to a determination result of determining whether 'T1' is greater than or equal to 'T2'; Judging the operation mode of the multi-room air conditioner according to the determination result of the step of determining whether the difference between the 'T1' and 'T2' is greater than or equal to 'ΔT'. Way. The method of claim 6; Determining the operation mode of the other room according to the comparison result of the 'T1' and 'T2' Determining whether 'T1' is 'T2' or more; Determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT' when 'T1' is greater than or equal to 'T2' as a result of determining whether 'T1' is greater than or equal to 'T2'; As a result of determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', if the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', the operation mode of the other room is determined to be cooling. Operation mode determination method of the multi-chamber air conditioner, characterized in that consisting of a step. The method of claim 6; Determining the operation mode of the other room according to the comparison result of the 'T1' and 'T2' Determining whether 'T1' is 'T2' or more; Determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT' when 'T1' is greater than or equal to 'T2' as a result of determining whether 'T1' is greater than or equal to 'T2'; As a result of determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', if the difference between 'T1' and 'T2' is smaller than 'ΔT', whether 'T2' is greater than or equal to X3 ° C. Determining whether or not; Determining whether the operation mode of the other room is heating when 'T2' is greater than or equal to X3 ° C as a result of determining whether the 'T2' is greater than or equal to X3 ° C; As a result of determining whether the 'T2' is greater than or equal to X3 ° C, if the 'T2' is less than X3 ° C, the operation mode of the multi-room air conditioner is characterized in that the operation mode of the other room is determined to be cooling. Judgment method. The method of claim 9; Wherein X3 ℃ is the minimum value of the pipe temperature during heating operation, 25 ℃ ~ 35 ℃ and ΔT is 7 ℃ ~ 13 ℃ operating mode determination method of the air conditioner. The method of claim 6; Determining the operation mode of the other room according to the comparison result of the 'T1' and 'T2' Determining whether 'T1' is 'T2' or more; Determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT' if 'T1' is not greater than 'T2' as a result of determining whether 'T1' is greater than or equal to 'T2'; As a result of determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', if the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', the operation mode of the other room is determined to be heating. Operation mode determination method of the multi-chamber air conditioner, characterized in that consisting of a step. The method of claim 6; Determining the operation mode of the other room according to the comparison result of the 'T1' and 'T2' Determining whether 'T1' is greater than or equal to 'T2'; Determining whether 'T1' is greater than or equal to 'T2' and determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT' if 'T1' is not greater than 'T2'; As a result of determining whether the difference between 'T1' and 'T2' is greater than or equal to 'ΔT', if the difference between 'T1' and 'T2' is smaller than 'ΔT', whether 'T2' is greater than or equal to X4 ° C. Determining whether or not; Determining whether the operation mode of the other room is cooling when 'T2' is less than X4 ° C as a result of determining whether the 'T2' is greater than or equal to X4 ° C; Judgment of the operation mode of the multi-room air conditioner is characterized in that the step of determining whether the 'T2' is X4 ℃ or more when the 'T2' is X4 ℃ or more is determined that the operation mode of the other room is heating. Way. The method of claim 12; The X4 ℃ is the maximum limit value of the pipe temperature during cooling, 15 ℃ ~ 25 ℃ operating mode determination method of the air conditioner characterized in that the air conditioner. The method of claim 1; Comparing the operation mode of the indoor indoor unit and the recognized operation mode of the other room indoor unit is Determining that the fruit room is the same operation mode as the other rooms when the piping temperature of the fruit room is equal to or greater than X1 ° C. and the fruit room operation mode is artificial intelligence or heating, and operating the fruit room indoor unit in operation mode; The method of determining the operation mode of the multi-room air conditioner when the pipe temperature of the fruit room is equal to or higher than X1 ° C. and the operation mode of the fruit room is cooled, determining that the fruit room is a different operation mode from other rooms. . The method of claim 1; Comparing the operation mode of the indoor indoor unit and the recognized operation mode of the other room indoor unit is Determining that the fruit room is in the same operation mode as the other rooms when the pipe temperature of the fruit room is equal to or lower than X2 ° C. and the operation mode of the fruit room is artificial intelligence or cooling; The method of determining the operation mode of the multi-room air conditioner, characterized in that if the piping temperature of the own room is less than X2 ℃ and the operating mode of the own room is heating, it is determined that the own room is a different operation mode from other rooms. . The method of claim 1; Comparing the operation mode of the indoor indoor unit and the recognized operation mode of the other room indoor unit is Determining that the fruit room is the same operation mode as the other rooms when the piping temperature of the fruit room is equal to or greater than X1 ° C. and the fruit room operation mode is artificial intelligence or heating, and operating the fruit room indoor unit in operation mode; Stopping the operation of the indoor indoor unit by determining that the own room is in a different operation mode from the other rooms when the piping temperature of the fruit room is X1 ° C. or more and the operation mode of the fruit room is cooled; Determining that the fruit room is in the same operation mode as the other rooms when the pipe temperature of the fruit room is equal to or lower than X2 ° C. and the operation mode of the fruit room is artificial intelligence or cooling; The method of determining the operation mode of the multi-room air conditioner, characterized in that if the piping temperature of the own room is less than X2 ℃ and the operating mode of the own room is heating, it is determined that the own room is a different operation mode from other rooms. . The method of claim 16; The X1 ℃ is the pipe temperature of the other room according to the heating operation and 35 ℃ ~ 45 ℃ and the X2 ℃ is the pipe temperature of the other room according to the cooling operation and operating mode of the multi-room air conditioner, characterized in that -10 ℃ ~ 0 ℃ Judgment method.