JP4280994B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner having a dehumidifying operation function, and more particularly, to an air conditioner capable of performing an efficient dehumidifying operation.

  In a conventional air conditioner having a dehumidifying operation function, the dehumidification amount is calculated from the humidity of the intake air, the humidity of the blown air, or the humidity of the intake air, the humidity of the blown air, and the air volume when operating. Is displayed on the display unit so that the user can easily grasp the driving situation. (For example, see Patent Document 1)

JP 2002-349934 (page 2-6, Fig. 1)

  In an air conditioner having a dehumidifying operation function using a compressor and a blower, the dehumidifying capacity greatly varies depending on the indoor temperature and humidity. The air conditioner having the dehumidifying operation function has a function of displaying the humidity in the room, but with this alone, the user cannot easily grasp the dehumidifying situation. There was a problem that the dehumidifying effect could not be confirmed unless it passed. Therefore, an air conditioner as shown in Patent Document 1 has been proposed. However, in the air conditioner shown in Patent Document 1, the humidity of intake air and the humidity of blown air are measured, and the humidity of both is measured. Or display the dehumidification amount by calculating the dehumidification amount from the measured humidity of the intake air, the humidity of the blown air and the air volume at that time. It was necessary to install a humidity sensor, which had the problem of increasing costs.

  Also, at low temperatures often seen in the snowy country, the dehumidifying capacity is significantly reduced even if dehumidifying operation is performed, so the humidity of the intake air and the humidity of the blown air are difficult to change despite the high humidity. . Therefore, even if the dehumidification amount is calculated and displayed, the calculated dehumidification amount is significantly different from that expected by the user, and the user is distrusted that the dehumidification operation is not performed even though the humidity is high. It also had a problem.

  The present invention has been made in order to solve the above-described problems, and allows the user to easily grasp the dehumidification status during operation, and can be realized at low cost. The purpose is to provide a machine.

  The air conditioner according to the present invention stores a humidity sensor that detects the humidity of room air, a temperature sensor that detects the temperature of the room air, and dehumidification amount data for each temperature and humidity in the dehumidification capability characteristic of the air conditioner. The air conditioner performs dehumidification based on the dehumidification capacity storage unit, the humidity sensor, the temperature and humidity of the indoor air measured by the temperature sensor, and the dehumidification amount data for each temperature and humidity stored in the dehumidification capacity storage unit. Effective dehumidification amount, the optimum temperature at which dehumidification can be performed most efficiently, and the maximum dehumidification amount when the optimum temperature is reached, and the ratio of the effective dehumidification amount in the current dehumidification operation to the maximum dehumidification amount is calculated. And a display unit for displaying a ratio of the effective dehumidifying amount to the maximum dehumidifying amount calculated by the dehumidifying capacity calculating unit.

  According to the air conditioner of the present invention, since the ratio of the effective dehumidifying amount in the current dehumidifying operation to the maximum dehumidifying amount is displayed on the display unit, the user can easily perform even in a state of low temperature and high humidity. Therefore, the user can grasp that the dehumidifying ability has decreased, and the user can perform a more efficient dehumidifying operation by raising the room temperature by some method. In addition, since it is not necessary to install a plurality of humidity sensors, it can be realized at a low cost.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of an air conditioner showing Embodiment 1 of the present invention.
In FIG. 1, 1 is a humidity sensor that detects the humidity of room air, and 2 is a temperature sensor that detects the temperature of room air. The humidity sensor 1 may be a sensor that detects either relative humidity or absolute humidity.

Dehumidifying capacity storage unit 3 stores in advance dehumidifying amount data for each temperature and humidity in the dehumidifying capacity characteristics of the air conditioner. Reference numeral 4 denotes a dehumidifying capacity calculation unit, and 5 denotes an operation control unit. On the output side of the operation control unit 5, a compressor 6, a blower fan 7, a display unit 8, and a buzzer 9 are connected.
The dehumidifying capacity calculation unit 4 reads the effective dehumidifying amount Ha of the air conditioner at the temperature and humidity detected by the humidity sensor 1 and the temperature sensor 2 from the data stored in the dehumidifying capacity storage unit 3. At the same time, the dehumidifying capacity calculation unit 4 stores the maximum dehumidifying amount Hb in the dehumidifying capacity storage unit 3 at the optimum temperature T1 at which the humidity detected by the humidity sensor 1 can be most efficiently dehumidified. Read from. Then, a ratio P of the effective dehumidification amount Ha to the read maximum dehumidification amount Hb is calculated and output to the operation control unit 5. The operation control unit 5 outputs the ratio P of the effective dehumidification amount Ha to the maximum dehumidification amount Hb calculated by the dehumidification capability calculation unit 4 on the display unit 8 for display. When the ratio P is below a certain value, the operation control unit 5 activates the buzzer 9 to generate an alarm.

FIG. 2 is a dehumidification amount-room temperature characteristic diagram of an air conditioner having a dehumidifying operation function.
In general, the dehumidification amount-room temperature characteristic of an air conditioner having a dehumidifying operation function using the compressor 6 is a characteristic diagram as shown in FIG.
In FIG. 2, the horizontal axis represents room temperature in the environment where the dehumidifying operation is performed, and the vertical axis represents the effective dehumidifying amount that can be dehumidified by the air conditioner. As can be seen from this figure, when the humidity is constant, the effective dehumidification amount increases by raising the room temperature. For example, in the air conditioner having a dehumidifying operation function in the present invention, when the relative humidity is 60%, when the room temperature is 10 ° C., about 5 L per day can be dehumidified, but by increasing the room temperature to 30 ° C., It becomes possible to dehumidify about 18 L per day, and the amount of dehumidification changes greatly. Accordingly, it can be seen that raising the room temperature is effective in improving the dehumidifying ability.

FIG. 3 is a control flowchart according to Embodiment 1 of the present invention.
Next, the operation of the first embodiment will be described in detail with reference to FIG.
First, simultaneously with the start of the dehumidifying operation, the temperature and humidity of the room air are measured by the humidity sensor 1 and the temperature sensor 2, and are input to the dehumidifying capacity calculation unit 4 (step S1). Next, the dehumidifying capacity calculating unit 4 stores the effective dehumidifying amount Ha corresponding to the input temperature and humidity, the optimum temperature T1 that can be most efficiently dehumidified, and the maximum dehumidifying amount Hb at the optimum temperature T1. 13 is read from the data stored in 13 (step S2). Here, the optimum temperature T1 has an upper limit at a temperature that is not uncomfortable even in a living environment (30 ° C. in the present invention).

  Based on the result, the dehumidifying capacity calculating unit 4 calculates the ratio P of the effective dehumidifying amount Ha in the current dehumidifying operation with respect to the maximum dehumidifying amount Hb, and outputs it to the operation control unit 5 (step S3). Then, the operation control unit 5 converts the effective dehumidification amount Ha to the input maximum dehumidification amount Hb into a bar graph as shown in FIG. 4, for example, and outputs it to the display unit 8 for effective dehumidification with respect to the maximum dehumidification amount Hb. The ratio P of the quantity Ha is displayed (step S4). Incidentally, FIG. 4 is a display example when the ratio P of the effective dehumidifying amount Ha of the current dehumidifying operation to the maximum dehumidifying amount Hb is 70%. Thereby, the user can grasp | ascertain easily correlating the fall of a dehumidification capability, and the fall of room temperature.

  Next, it is compared and determined whether the ratio P of the effective dehumidification amount Ha to the maximum dehumidification amount Hb is equal to or less than a certain value (60% in the present invention) (step S5). At this time, if P> 60, the process proceeds to step S1. Conversely, when P ≦ 60, the operation control unit 5 outputs the alarm to the buzzer 9. (Step S6)

As described above, according to the air conditioner shown in the first embodiment, since the ratio of the effective dehumidification amount to the maximum dehumidification amount is displayed on the display unit, even in a state such as a low temperature and high humidity state, The user can easily grasp that the dehumidifying ability has decreased, and the user can perform a more efficient dehumidifying operation by raising the room temperature by some method.
In addition, since it is possible to calculate the dehumidifying capacity by providing only one humidity sensor, it is not necessary to install a plurality of humidity sensors, and an air conditioner having a dehumidifying operation function at a lower cost than conventional ones. Can be provided.
Furthermore, the user can easily detect a decrease in the dehumidifying ability due to a decrease in room temperature by listening to the alarm, and can provide a more convenient air conditioner.

Embodiment 2. FIG.
FIG. 5 is a control flowchart according to the second embodiment of the present invention.
In the second embodiment, the contents displayed on the display unit 8 in step S4a are both the optimum temperature T1 when the maximum dehumidification amount Hb is obtained and the ratio P of the effective dehumidification amount Ha to the maximum dehumidification amount Hb. Like to do.
Other than the above, the control is the same as that of the first embodiment shown in FIG.
According to the second embodiment, both the optimum temperature T1 at which the maximum dehumidification amount Hb is obtained and the ratio P of the effective dehumidification amount Ha in the current dehumidification operation with respect to the maximum dehumidification amount Hb are displayed. By grasping the current situation and raising the room temperature, an appropriate response can be performed, and a more efficient dehumidifying operation can be performed.

  In the present invention, the display of the ratio P of the effective dehumidification amount Ha to the maximum dehumidification amount Hb displayed on the display unit 8 and the display of the optimum temperature T1 may be numerical values.

It is a block diagram which shows the structure of the air conditioner which shows Embodiment 1 of this invention. It is a dehumidification amount-room temperature characteristic diagram of an air conditioner having a dehumidifying operation function. It is a control flowchart in Embodiment 1 of this invention. It is a figure which shows the example of a display of the ratio of the effective dehumidification amount with respect to the maximum dehumidification amount in Embodiment 1 of this invention. It is a control flowchart in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Humidity sensor 2 Temperature sensor 3 Dehumidification capacity memory | storage part 4 Dehumidification capacity calculation part 5 Operation control part 6 Compressor 7 Blower fan 8 Display part 9 Buzzer

Claims (3)

A humidity sensor that detects the humidity of the room air, a temperature sensor that detects the temperature of the room air, a dehumidification capability storage unit that stores dehumidification amount data for each temperature and humidity in the dehumidification capability characteristics of the air conditioner, and the humidity sensor The effective dehumidification amount that the air conditioner can dehumidify based on the temperature and humidity of the indoor air measured by the temperature sensor and the dehumidification amount data for each temperature and humidity stored in the dehumidification capacity storage unit, most efficiently A dehumidification capability calculation unit that reads out an optimum temperature at which dehumidification is possible and the maximum dehumidification amount when the optimum temperature is reached, and calculates a ratio of the effective dehumidification amount in the current dehumidification operation to the maximum dehumidification amount, and the dehumidification capability calculation unit An air conditioner comprising: a display unit configured to display a ratio of the effective dehumidification amount to the maximum dehumidification amount calculated in (1). The air conditioner according to claim 1, wherein the display unit displays both the optimum temperature at which the maximum dehumidification amount is obtained and the ratio of the effective dehumidification amount in the current dehumidification operation to the maximum dehumidification amount. The alarm means for generating an alarm when the ratio of the effective dehumidifying amount in the current dehumidifying operation to the maximum dehumidifying amount falls below a certain value is further provided. Air conditioner.

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