JP2014040978A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner that has improved comfort and reduced energy consumption by predicting weather.SOLUTION: An air conditioner comprises an indoor unit, an outdoor unit, atmospheric pressure detection means, operation control means, weather prediction means and set temperature correction means. The indoor unit is provided indoors. The outdoor unit is provided outdoors, and a cooling medium circulates through between the indoor unit and the outdoor unit. The atmospheric pressure detection means detects an atmospheric pressure. The operation control means controls operation of the indoor unit and the outdoor unit. The weather prediction means predicts weather using the atmospheric pressure detected by the atmospheric pressure detection means. The set temperature correction means corrects a set temperature set to the indoor unit on the basis of the weather predicted by the weather prediction means.

Description

  The present embodiment relates to an air conditioner.

  Conventionally, the operation of an air conditioner is controlled based on an indoor temperature and a set temperature in which the indoor unit is provided. For example, the air conditioner strengthens the operation when the difference between the room temperature and the set temperature increases, and weakens the operation when the difference between the room temperature and the set temperature decreases. Thus, the air conditioner controls the operation based on the difference between the indoor air temperature and the set temperature, and maintains the indoor temperature. The set temperature is set arbitrarily by the user of the air conditioner.

  However, the indoor temperature varies greatly depending on the weather. In addition, the temperature at which the user feels comfortable varies depending on the weather. For example, even if the room is maintained at a comfortable set temperature during fine weather in summer, it feels chilly at the same set temperature during rainy weather in summer. Thus, there is a problem that the comfortable temperature changes depending on the weather.

JP 2011-99622 A

  Therefore, an object of the present embodiment is to provide an air conditioner that improves comfort and reduces energy consumption by predicting the weather.

  The air conditioner of the present embodiment includes an indoor unit, an outdoor unit, an atmospheric pressure detection unit, an operation control unit, a weather prediction unit, and a set temperature correction unit. The indoor unit is provided indoors. The outdoor unit is provided outdoors, and the refrigerant circulates between the outdoor unit. The atmospheric pressure detection means detects atmospheric pressure. The operation control means controls the operation of the indoor unit and the outdoor unit. The weather prediction means predicts the weather from the atmospheric pressure detected by the atmospheric pressure detection means. The set temperature correction means corrects the set temperature set in the room based on the weather predicted by the weather prediction means.

The schematic diagram which shows the structure of the air conditioner of 1st Embodiment. The block diagram which shows the structure of the air conditioner of 1st Embodiment. Schematic showing the flow of weather prediction by the air conditioner of the first embodiment In the air conditioner of 1st Embodiment, the schematic which shows the relationship between the change of atmospheric pressure, and the judgment of the change of a weather The schematic diagram which shows the outline of the prediction of a weather in the air conditioner of 1st Embodiment. In the air conditioner of 1st Embodiment, the schematic which shows correction | amendment of the preset temperature at the time of air_conditionaing | cooling operation In the air conditioner of 1st Embodiment, the schematic which shows correction | amendment of the preset temperature at the time of heating operation The block diagram which shows the structure of the air conditioner of 2nd Embodiment. Schematic which shows correction | amendment of preset temperature in the air conditioner of 2nd Embodiment. The schematic diagram which shows the display part of a remote control apparatus in the air conditioner of other embodiment.

Hereinafter, a plurality of embodiments of an air conditioner will be described based on the drawings. In addition, the same code | symbol is attached | subjected to the substantially same component in several embodiment, and description is abbreviate | omitted.
(First embodiment)
As shown in FIG. 1, the air conditioner 10 according to the first embodiment includes an indoor unit 11, an outdoor unit 12, and an atmospheric pressure sensor 13 and an operation control unit 14 as atmospheric pressure detection means. The indoor unit 11 is provided in a room such as a house room. The indoor unit 11 has a heat exchanger and a fan (not shown). The outdoor unit 12 is provided outside the house. The outdoor unit 12 includes a compressor (not shown). The air conditioner 10 constitutes a heat pump between the indoor unit 11 and the outdoor unit 12, and the refrigerant circulates between the indoor unit 11 and the outdoor unit 12. The indoor unit 11 sends out cool air or warm air that has passed through the heat exchanger from the air outlet 15 by blowing air with a fan. In the case of the first embodiment, the atmospheric pressure sensor 13 is provided in the indoor unit 11. This atmospheric pressure sensor 13 may be provided not only in the indoor unit 11 but also in the outdoor unit 12.

  The air conditioner 10 according to the first embodiment includes a remote control device 16 (hereinafter, the remote control device is referred to as “remote control”). The remote controller 16 performs bidirectional communication with the indoor unit 11 of the air conditioner 10. The user uses the remote controller 16 to input the operation, stop, set temperature, wind direction, wind speed, operation time, and the like of the air conditioner 10. The remote control 16 has an operation button 17 that receives an input from the user. In addition, the remote controller 16 may be configured not only to accept mechanical input by the operation buttons 17 but also to accept input by a user's voice. The atmospheric pressure sensor 13 is not limited to the indoor unit 11 or the outdoor unit 12 and may be provided in the remote controller 16.

  The remote controller 16 has a display unit 18 and an audio output unit 19 in addition to the operation buttons 17. The operation button 17 receives various inputs such as power on / off of the air conditioner 10 and a set temperature. The display unit 18 displays the operating state of the air conditioner such as a set temperature and an air volume. The sound output unit 19 outputs a buzzer sound for confirming that there is an input with the operation button 17 or a sound for guiding the user.

  The operation control unit 14 is provided in the indoor unit 11 and controls the entire air conditioner 10 including the indoor unit 11 and the outdoor unit 12 by executing a computer program stored in the ROM. The operation control unit 14 is configured by a microcomputer including a CPU, a ROM, and a RAM (not shown). As shown in FIG. 2, the operation control unit 14 realizes the weather prediction unit 21 and the set temperature correction unit 22 by software, hardware, or a combination thereof. The operation control unit 14 is connected to the atmospheric pressure sensor 13, the temperature sensor 23, and the storage unit 24. The operation control unit 14 acquires the atmospheric pressure detected by the atmospheric pressure sensor 13 as an electric signal. The temperature sensor 23 detects the temperature of the room in which the indoor unit 11 is provided, that is, the room temperature. The temperature sensor 23 is provided in the indoor unit 11 or the remote controller 16. Note that the atmospheric pressure sensor 13 and the temperature sensor 23 may be provided separately from the indoor unit 11 and the remote controller 16.

  The operation control unit 14 acquires the room temperature detected by the temperature sensor 23 from the temperature sensor 23 as an electrical signal. The storage unit 24 is configured by, for example, a non-volatile memory, and accumulates the atmospheric pressure detected by the atmospheric pressure sensor 13, the room temperature detected by the temperature sensor 23, and the like. The storage unit 24 may be shared with the ROM and RAM of the operation control unit 14. Further, the operation control unit 14 includes a communication unit 25 that communicates with the remote controller 16. Communication unit 25 transmits signals to or receives signals from remote controller 16. The communication unit 25 communicates wirelessly with the remote controller 16 using, for example, infrared rays.

  The operation control unit 14 has at least an automatic operation mode and a manual operation mode. The automatic operation mode is a mode in which the execution of cooling or heating is automatically selected based on the set temperature input from the user so that the room temperature becomes the set temperature, and the indoor unit 11 and the outdoor unit 12 are controlled. is there. In the automatic operation mode, the operation control unit 14 strengthens the operation of the indoor unit 11 and the outdoor unit 12 when the difference between the room temperature and the set temperature increases, and the indoor unit 11 and the outdoor unit when the difference between the room temperature and the set temperature decreases. Decrease the driving of 12. The manual operation mode is a mode in which the indoor unit 11 and the outdoor unit 12 are controlled with priority given to the operation state input by the user. In the manual operation mode, the operation control unit 14 performs either “cooling” or “heating” operation input by the user, for example. When these “cooling” or “heating” are selected, the operation control unit 14 executes “cooling” or “heating”. As described above, in the manual operation mode, the operation control unit 14 performs either “cooling” or “heating” operation with priority on the set temperature, and does not execute the correction of the set temperature based on the predicted weather. .

  The weather prediction unit 21 predicts the weather from the atmospheric pressure detected by the atmospheric pressure sensor 13. Specifically, the weather prediction unit 21 predicts future weather based on the atmospheric pressure accumulated in the storage unit 24. For example, the weather prediction unit 21 predicts the weather after 9 hours based on the atmospheric pressure accumulated in the past 24 hours with the present as a reference. It is well known that there is a correlation between barometric pressure and weather changes. For example, when the atmospheric pressure tends to decrease, the weather tends to collapse, and when the atmospheric pressure tends to increase, the weather tends to recover. Therefore, the weather prediction unit 21 predicts future weather based on the accumulated tendency of the change in atmospheric pressure.

  The set temperature correction unit 22 corrects the set temperature based on the predicted weather predicted by the weather prediction unit 21. The air conditioner 10 has a preset temperature input in advance by a user operation. The user inputs a set temperature to the operation control unit 14 using the remote controller 16 or the like, for example. The operation control unit 14 operates the indoor unit 11 and the outdoor unit 12 based on the input set temperature. Thereby, the room in which the indoor unit 11 is provided is maintained at the set temperature. Specifically, the operation control unit 14 increases the operation of the indoor unit 11 and the outdoor unit 12 when the temperature difference between the room temperature detected by the temperature sensor 23 and the set temperature is large. On the other hand, the operation control unit 14 weakens the operation of the indoor unit 11 and the outdoor unit 12 when the temperature difference between the room temperature and the set temperature is small.

Hereinafter, the flow of processing by the air conditioner 10 having the above configuration will be described.
(Weather forecast processing)
First, the flow of weather prediction by the weather prediction unit 21 will be described with reference to FIG.
It is known that changes in atmospheric pressure correlate with changes in weather. For example, when the atmospheric pressure tends to decrease, it can be regarded as a precursor to worsening weather. Conversely, when the atmospheric pressure tends to rise, it can be regarded as a precursor to the recovery of the weather. Moreover, this change in atmospheric pressure has periodicity. For example, a change in atmospheric pressure with a half-day cycle is considered to be an effect of the attractive force of the sun. On the other hand, a change in atmospheric pressure with a period of more than a day exceeding half a day is related to a change in weather. Based on such a premise, the weather prediction unit 21 predicts the weather.

  The weather prediction unit 21 acquires the atmospheric pressure from the atmospheric pressure sensor 13 every 10 minutes (S101). The weather prediction unit 21 periodically acquires the atmospheric pressure when the air conditioner 10 is powered on. In this case, the air conditioner 10 acquires the atmospheric pressure as long as the power is turned on not only when the operation is turned on but also when the operation is turned off. The weather prediction unit 21 stores the atmospheric pressure acquired by the atmospheric pressure sensor 13 in the storage unit 24 (S102). Thereby, the weather prediction unit 21 accumulates the atmospheric pressure acquired by the atmospheric pressure sensor 13 in the storage unit 24. Note that the time when the atmospheric pressure sensor 13 acquires the atmospheric pressure in S101 is not limited to every 10 minutes.

  The weather prediction unit 21 calculates atmospheric pressure change data, which is a change in atmospheric pressure (S103). Specifically, the weather prediction unit 21 calculates atmospheric pressure change data from the latest atmospheric pressure data acquired in S <b> 101 and the atmospheric pressure data accumulated in the storage unit 24. For example, the weather prediction unit 21 calculates atmospheric pressure change data using the following equation. The atmospheric pressure change data is calculated every time the atmospheric pressure is acquired in S101, that is, every 10 minutes.

Atmospheric pressure change = Latest atmospheric pressure data−Atmospheric pressure data before 3 hours−Half-day period noise coefficient In the above formula, the latest atmospheric pressure data is the atmospheric pressure data acquired in S101. The atmospheric pressure data three hours ago is atmospheric pressure data three hours before the latest atmospheric pressure data is acquired in S101. In the case of the present embodiment, the atmospheric pressure data three hours before is an average value for one hour. That is, it is an average value obtained by averaging the atmospheric pressure data for 1 hour from 2 hours 30 minutes to 3 hours 30 minutes before the latest atmospheric pressure data is acquired in S101. Since the atmospheric pressure has a periodicity of a half-day cycle as described above, the half-day cycle noise coefficient is a coefficient for removing this periodicity as noise. This half-day period noise coefficient is calculated based on, for example, changes in atmospheric pressure data for the past 24 hours.

After calculating the atmospheric pressure change data in S103, the weather prediction unit 21 determines the weather change tendency based on the calculated atmospheric pressure change data. Specifically, the weather prediction unit 21 determines whether the calculated atmospheric pressure change data belongs to Category 1, Category 2, Category 3, Category 4, or Category 5.
The specific category determination will be described with reference to FIG. The weather prediction unit 21 first determines whether or not the calculated atmospheric pressure change is greater than the first determination value D1 (S104). When the atmospheric pressure change is larger than the first determination value D1 (S104: Yes), the weather prediction unit 21 determines that the weather change tendency is “category 1” (S105). This “category 1” corresponds to “rapid weather recovery”. On the other hand, when the atmospheric pressure change is equal to or less than the first determination value D1 (S104: No), the weather prediction unit 21 determines whether the atmospheric pressure change is greater than the second determination value D2 (S106). When the atmospheric pressure change is greater than the second determination value D2 (S106: Yes), the weather prediction unit 21 determines that the weather change tendency is “category 2” (S107). That is, the weather prediction unit 21 determines that the weather change tendency is “category 2” when the atmospheric pressure change is between the first determination value D1 and the second determination value D2. This “category 2” corresponds to “slow weather recovery”.

  When the atmospheric pressure change is equal to or smaller than the second determination value D2 (S106: No), the weather prediction unit 21 determines whether the atmospheric pressure change is larger than the third determination value D3 (S108). When the atmospheric pressure change is larger than the third determination value D3 (S108: Yes), the weather prediction unit 21 determines that the weather change tendency is “category 3” (S109). That is, the weather prediction unit 21 determines that the weather change tendency is “category 3” when the atmospheric pressure change is between the second determination value D2 and the third determination value D3. This “category 3” corresponds to a “stable weather region”.

  Furthermore, when the atmospheric pressure change is equal to or smaller than the third determination value D3 (S108: No), the weather prediction unit 21 determines whether the atmospheric pressure change is larger than the fourth determination value D4 (S110). When the atmospheric pressure change is larger than the fourth determination value D4 (S110: Yes), the weather prediction unit 21 determines that the weather change tendency is “category 4” (S111). That is, the weather prediction unit 21 determines that the weather change tendency is “category 4” when the atmospheric pressure change is between the third determination value D3 and the fourth determination value D4. This “category 4” corresponds to “slow weather deterioration”. When the atmospheric pressure change is equal to or smaller than the fourth determination value D4 (S110: No), the weather prediction unit 21 determines that the weather change tendency is “category 5” (S112). This “category 5” corresponds to “rapid weather deterioration”.

  As described above, the weather prediction unit 21 classifies the weather change tendency from “category 1” to “category 5” based on the atmospheric pressure change. “Category 3” means a “stable weather region” in which the change in atmospheric pressure is between the second judgment value D2 or less and the third judgment value D3 sandwiching “0”, and the weather hardly changes. doing. If the change in atmospheric pressure becomes larger on the positive side than “Category 3”, it is determined that “Category 2” is a “gradual weather recovery” region. When the atmospheric pressure change becomes larger on the positive side than “Category 2”, it is determined as the “Rapid Weather Recovery” region of “Category 1”. On the other hand, if the change in atmospheric pressure is larger on the negative side than “Category 3”, it is determined that “Category 4” is a “slow weather deterioration” region. When the atmospheric pressure change becomes larger on the negative side than “Category 4”, it is determined that the “Category 5” is a “rapid weather deterioration” region.

  The weather prediction unit 21 predicts the weather after 9 hours based on the classified weather change tendency. In the case of the present embodiment, the weather is predicted as one of five types of “sunny mode”, “cloudy mode”, “rainy mode”, “sunny / cloudy mode”, and “cloudy / rainy mode”. As shown in FIG. 5, three types of “sunny mode”, “cloudy mode”, and “rain mode” are set as basic modes in order from the better weather. Two types of “sunny / cloudy mode” are set between these “sunny mode” and “cloudy mode”, and “cloudy / rainy mode” is set between “cloudy mode” and “rainy mode”. Yes.

  Weather prediction by the weather prediction unit 21 will be described with reference to FIG. When the current weather mode is “cloudy mode”, the weather prediction unit determines to shift to “sunny mode” if the atmospheric pressure change is “category 1”. Similarly, when in the “cloudy mode”, the weather prediction unit 21 determines to shift to the “rain mode” if the atmospheric pressure change is “category 5”. Further, when the weather prediction unit 21 is in the “cloudy mode”, if the atmospheric pressure change is “category 2”, it is “sunny / cloudy mode”, and if the atmospheric pressure change is “category 4”, it is “cloudy / rainy”. It is determined that the mode is shifted to “mode”. As described above, the weather prediction unit 21 changes the mode by two when the atmospheric pressure change is “category 1” or “category 5”. The weather prediction unit 21 changes the mode one by one when the atmospheric pressure change is “category 2” or “category 4”. The weather prediction unit 21 does not change the mode when the atmospheric pressure change is “category 3”. Furthermore, the weather prediction unit 21 does not change the mode even when there is no upper or lower mode. For example, if the atmospheric pressure change is “Category 1” or “Category 2” in the “clear mode”, the “clear mode” is maintained without changing the mode.

(Set temperature correction processing)
The set temperature correction unit 22 corrects the set temperature based on the weather predicted by the weather prediction unit 21. Specifically, the set temperature correction unit 22 corrects the current set temperature based on the predicted weather predicted from the atmospheric pressure change 9 hours ago. The set temperature correction unit 22 corrects the set temperature when the air conditioner 10 is in the automatic operation mode. For example, when the user sets the set temperature to “25 ° C.”, the operation control unit 14 controls the indoor unit 11 and the outdoor unit 12 to the cooling operation if the room temperature exceeds “25 ° C.”. On the other hand, if the room temperature is lower than “25 ° C.”, the operation control unit 14 controls the indoor unit 11 and the outdoor unit 12 to perform the heating operation. The set temperature correction unit 22 corrects the set temperature input by the user when the air conditioner 10 is thus automatically operated at the set temperature. In the example shown in FIGS. 6 and 7, the set temperature correction amount is set based on the air conditioning capability of the air conditioner 10. The air conditioner 10 generally has an output as an air conditioning capacity set in a range of 2.2 kW to 7.1 kW. The air conditioning capability of the air conditioner 10 correlates with the size of the room to be air-conditioned. The correction amount set by the set temperature correction unit 22 is set according to the air conditioning capability of the air conditioner 10.

  As shown in FIG. 6, during the cooling operation for lowering the room temperature, the set temperature correction unit 22 corrects the set temperature as follows. The set temperature correction unit 22 has a set temperature from 0.5 ° C. when compared with “sunny mode” or “sunny / cloudy mode” when in “cloudy mode”, “cloudy / rainy mode” or “rainy mode”. Correct to the 1.5 ° C higher side. When the air conditioner 10 is performing a cooling operation, if the weather is “cloudy” or “rainy”, it may feel chilly at the set temperature. Therefore, the set temperature correction unit 22 performs the “sunny mode” or “sunny / cloudy mode” when the predicted weather mode is “cloudy mode”, “cloudy / rainy mode”, or “rainy mode” during the cooling operation. The set temperature is corrected to be higher by 0.5 ° C. to 1.5 ° C. Thereby, the room in which the cooling operation is performed by the air conditioner 10 is maintained at a comfortable temperature regardless of the weather.

  Similarly, the set temperature correction unit 22 corrects the set temperature even during heating operation as shown in FIG. In this case, the set temperature correction unit has a set temperature of 0.5 when compared with “cloudy mode”, “cloudy / rainy mode” or “rainy mode” when in the “clear mode” or “sunny / cloudy mode”. Correct to the lower side. When the air conditioner 10 is performing a heating operation, if the weather is “sunny”, it may feel hot at the set temperature due to sunlight. Therefore, when the weather mode is “fine mode” or “fine / cloudy mode” during the heating operation, the set temperature correction unit 22 has a set temperature compared to “cloudy / rainy mode” or “rainy mode”. Correct to 0.5 ° C lower side. Thereby, the room in which the heating operation is performed in the air conditioner 10 is maintained at a comfortable temperature regardless of the weather.

  The set temperature correction unit 22 corrects the set temperature in a weather-dependent time zone that is easily affected by the weather. The relationship between the set temperature and comfort is greatly affected by sunlight. For example, when the set temperature is adjusted to a sunny day during cooling operation, such as in summer, if the sunlight is blocked such as in cloudy weather or rainy weather, the room temperature is likely to be felt low at the set temperature. On the other hand, during the heating operation, such as in winter, when there is sunlight, the room temperature is easily felt at a set temperature. The effect of such sunshine, that is, the influence of the weather, increases during the daytime even during the day. Conversely, at night, the influence of sunlight, that is, the influence of the weather is reduced. Therefore, the set temperature correction unit 22 executes correction of the set temperature in a weather-dependent time zone that is easily affected by sunlight. For example, when the air conditioner 10 is in the cooling operation, the set temperature correction unit 22 performs the correction of the set temperature using the period between 6 am and 7 pm as a weather-dependent time zone. In addition, when the air conditioner 10 is in the heating operation, the set temperature correction unit 22 performs the correction of the set temperature using the period between 7 am and 5 pm as a weather-dependent time zone. The set temperature correction unit 22 may set the weather-dependent time zone in consideration of the time from sunrise to sunset in each region. The weather-dependent time zone may be configured so that the user can arbitrarily change it according to the lifestyle by inputting from the remote controller 16 or the like.

In the first embodiment, the weather is predicted from the atmospheric pressure detected by the atmospheric pressure sensor 13. The set temperature correction unit 22 corrects the temperature set in the room based on the predicted weather. Accordingly, the set temperature is corrected according to the weather every season, and excessive air conditioning is suppressed. Therefore, comfort can be improved and energy consumption can be reduced.
In 1st Embodiment, the preset temperature correction | amendment part 22 sets the range which correct | amends preset temperature according to the driving | running state of the air conditioners 10, such as cooling and heating, the capability of the air conditioner 10, and the forecasted weather. Set as desired. Therefore, comfort can be improved according to the season and weather, and energy consumption can be reduced.

In the first embodiment, the set temperature correction unit 22 executes the correction of the set temperature in consideration of the influence of sunlight. For this reason, the room temperature is corrected to a weather-dependent time zone in consideration of the influence of sunlight for each season. Therefore, comfort can be improved according to the season and weather, and energy consumption can be reduced.
In the first embodiment, when the operation control unit 14 is executing the automatic operation mode, the set temperature correction unit 22 corrects the set temperature based on the predicted weather. In the automatic operation mode, the operation control unit 14 operates at the corrected set temperature corrected by the set temperature correction unit 22 regardless of the set temperature input by the user. On the other hand, in the manual operation mode in which the user selects the “cooling mode” or the “heating mode” in order to give priority to the set temperature, the operation control unit 14 does not correct the set temperature. Thereby, in the manual operation mode, the set temperature is controlled with the highest priority. Therefore, the room can be controlled to a comfortable temperature based on the user's intention.

(Second Embodiment)
The structure of the air conditioner by 2nd Embodiment is shown in FIG.
In the second embodiment, the air conditioner 10 has an outside air temperature sensor 26 and an illuminance sensor 27 as shown in FIG. The outside air temperature sensor 26 and the illuminance sensor 27 are connected to the operation control unit 14. The outside air temperature sensor 26 detects the outside air temperature, that is, the outside air temperature, and outputs the detected outside air temperature to the operation control unit 14. The illuminance sensor 27 detects outdoor illuminance and outputs the detected illuminance to the operation control unit 14. The air conditioner 10 has a room arrangement acquisition unit 28. The room arrangement acquisition unit 28 inputs the arrangement of the room in which the air conditioner 10 is input by the user from, for example, a dedicated or shared switch to the remote controller 16. Here, the arrangement of the rooms means whether the room in which the air conditioner 10 is set is facing south or facing north. South-facing rooms are more susceptible to sunlight, while north-facing rooms are less susceptible to sunlight. Therefore, the user inputs the arrangement of the room in which the air conditioner 10 is installed to the room arrangement acquisition unit 28 via the remote controller 16.

  As described in the first embodiment, the set temperature correction unit 22 uses the outside air temperature and illuminance sensor 27 detected by the outside air temperature sensor 26 in addition to the ability of the air conditioner 10 and the weather predicted by the weather prediction unit 21. Based on the detected illuminance and the room arrangement acquired by the room arrangement acquisition unit 28, a temperature correction amount is set. Specifically, the set temperature correction unit 22 corrects the set temperature using a correction value set according to each condition as shown in FIG.

  When the air conditioner 10 is performing a cooling operation, if it is a normal set temperature in a south-facing room, the cooling tends to be too strong when there is no sunlight, such as cloudy or rainy. In particular, in the case of the air conditioner 10 having a large capacity, there is a large tendency for cooling to become strong. Therefore, the set temperature correction unit 22 corrects the set temperature to the higher side. Further, when the outside air temperature is low, the sensory temperature due to cooling tends to be further lowered. Therefore, for example, when the outside air temperature is 30 ° C. or less and the capacity of the air conditioner 10 is large, the set temperature correction unit 22 corrects the set temperature to the higher side.

On the other hand, when the air conditioner 10 is performing the heating operation, the influence of sunshine increases in the south-facing room. Therefore, the set temperature correction unit 22 corrects the set temperature to a lower side. Further, when the outside air temperature is high, the sensible temperature due to heating tends to rise more. Therefore, for example, when the outside air temperature is 10 ° C. or higher and the capacity of the air conditioner 10 is large, the set temperature correction unit 22 corrects the set temperature to a lower side.
As described above, in the second embodiment, the set temperature correction unit 22 is based on the information predicted by the various sensors, the room environment input in advance, and the like in addition to the weather predicted by the weather prediction unit 21. Is corrected. Accordingly, the temperature can be corrected more finely, and comfort can be improved and energy consumption can be reduced.

(Other embodiments)
The plurality of embodiments described above can be modified as follows.
For example, as shown in FIG. 10, the display unit 18 of the remote controller 16 may display a weather mark 30. The weather predicted by the weather prediction unit 21 is not only used for correcting the set temperature by the set temperature correction unit 22 but also displayed as a weather mark 30 on the display unit 18 of the remote controller 16. In this case, the display unit 18 corresponds to weather display means. Specifically, the remote controller 16 obtains the weather predicted by the weather prediction unit 21 via the indoor unit 11 and displays the obtained predicted weather on the display unit 18 as the weather mark 30. Thereby, the user can visually know the future weather predicted by the weather prediction unit 21. Further, the remote controller 16 may be configured to output the obtained weather as a sound from the sound output unit 19. For example, by operating an arbitrary operation button 17 of the remote controller 16, the sound output unit 19 outputs the obtained weather as a sound such as “sunny” or “rain”. In this case, the audio output unit 19 corresponds to weather notification means. Thus, the user can audibly know the future weather predicted by the weather prediction unit 21.

  Moreover, in the above-described plurality of embodiments, the description has been made on the assumption that weather prediction is executed. However, for example, an operation button for stopping the weather prediction may be provided on the remote controller 16. In this case, the user can cancel the correction of the set temperature based on the weather prediction by operating an operation button for canceling the weather prediction. For example, atmospheric pressure may change rapidly in a short time due to the approach of a typhoon or a developing low pressure. In such a case, it is conceivable that the weather predicted by the weather prediction unit 21 based on the atmospheric pressure and the actual weather are greatly different. Therefore, by accepting cancellation of the weather prediction from the user, inappropriate correction of the set temperature can be avoided. Therefore, comfortable air conditioning can be maintained regardless of sudden changes in weather.

  As mentioned above, although several embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 10 is an air conditioner, 11 is an indoor unit, 12 is an outdoor unit, 13 is an atmospheric pressure sensor (atmospheric pressure detection means), 14 is an operation control unit (operation control means), 16 is a remote control (remote operation device), 18 Denotes a display unit (weather display means), 19 denotes an audio output unit (weather notification means), 21 denotes a weather prediction unit (weather prediction means), and 22 denotes a set temperature correction unit (set temperature correction means).

Claims (7)

An indoor unit provided indoors;
An outdoor unit provided outdoors and in which a refrigerant circulates between the indoor unit,
Atmospheric pressure detection means for detecting atmospheric pressure;
Operation control means for controlling the operation of the indoor unit and the outdoor unit;
Weather prediction means for predicting the weather from the atmospheric pressure detected by the atmospheric pressure detection means;
Set temperature correction means for correcting the set temperature set in the room based on the weather predicted by the weather prediction means;
Air conditioner equipped with.   The air conditioner according to claim 1, wherein the set temperature correction unit changes a correction range of the set temperature.   The air conditioner according to claim 1 or 2, wherein the set temperature correction means corrects the set temperature in a weather-dependent time zone that is affected by weather during a day.   The air conditioner according to claim 3, wherein the set temperature correction means changes the weather-dependent time zone. The operation control means has an automatic operation mode in which the indoor unit and the outdoor unit are controlled based on the set temperature to automatically maintain the indoor temperature at the set temperature.
The set temperature correction means changes the set temperature set in the room based on predicted weather when the automatic operation means is executing automatic operation of the indoor unit and the outdoor unit. The air conditioner as described in any one of 1-4. A remote operation device that communicates bidirectionally with the indoor unit and inputs an operation to the operation control means,
The air conditioner according to any one of claims 1 to 5, wherein the remote control device includes a weather display unit that visually displays the weather predicted by the weather prediction unit. A remote operation device that communicates bidirectionally with the indoor unit and inputs an operation to the operation control means,
The air conditioner according to any one of claims 1 to 5, wherein the remote control device includes a weather notification unit that notifies the weather predicted by the weather prediction unit by voice.

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