JPH0823428B2 - Air conditioner - Google Patents

Description

TECHNICAL FIELD The present invention relates to an air conditioner that utilizes dehumidifying ability for drying clothes.

[Conventional technology]

FIG. 4 and FIG. 5 are configuration diagrams of a conventional dehumidifying operation disclosed in, for example, Japanese Patent Laid-Open No. 57-73339.

In the figure, (61) is a compressor, (62) is a condenser,
(63) is a capillary tube, (64) is an evaporator, and these constitute a refrigerant circuit. This is a normal cooling refrigerant circuit. (65) is a power supply for commercial frequency, etc., and (66) is a power switch. (67) is a thermistor that detects the room temperature,
(68) is a variable resistor for set temperature, both (69) A / D
It is input to the conversion circuit. (70) is a cooling / simple dehumidification operation selector switch, (71) is a thermostat contact, and (72) is a computer circuit. Computer circuit (72) is A / D
Input the conversion circuit (69) and operation selector switch (70), and output the thermostat contact (71). (73) and (74)
Is the indoor fan motor and its operating capacitor, (75) and (76) are the outdoor fan motor and its operating capacitor,
(77) and (78) are the motor of the compressor (61) and its operating capacitor.

Next, the operation will be described. When the power switch (66) is turned on, the A / D conversion circuit (69) and computer circuit (7
2) starts operating, but when the operation changeover switch (70) is on the cooling operation side, the computer circuit (72) displays the room temperature detected by the thermistor (67) and the set temperature indicated by the variable resistor (68). Is input via the A / D conversion circuit (69) and further compared and judged to open and close the thermostat contact (71). The indoor fan motor (73), the outdoor fan motor (75), and the compressor motor (77) are operated / stopped according to closing / opening of the thermostat contact (71), and normal cooling operation is performed.

Next, when the operation changeover switch (70) is on the simple dehumidification operation side, the air conditioner performs the simple dehumidification operation without significantly reducing the indoor temperature. This will be described below with reference to the flowchart of FIG.

When the operation changeover switch (70) is instructed to the dehumidifying operation side, the computer circuit (72) detects the room temperature at that time. Then, the set temperature is calculated based on a predetermined calculation method and stored. At this time, the variable resistor for the set temperature (6
The indicated value in 8) is ignored. Here, the predetermined calculation method is a case where a constant value is subtracted from the room temperature when the simple dehumidifying operation is instructed as shown in FIG. 8 (a in FIG. 8).
Or, when the room temperature at that time is high, a large value is drawn, and when the room temperature at that time is low, a small value is drawn (b in FIG. 8), and the upper and lower limits are set as the modified value. In some cases (c in FIG. 8). When the set temperature is stored, the thermostat contact (71) is closed and the indoor fan motor (73), the outdoor fan motor (75) and the compressor motor (77) start operation. Then, both the temperature and humidity of the air-conditioning room begin to drop and the computer circuit (7
2) continues to monitor the descending room temperature, compares the previously stored set temperature with the newly detected room temperature,
When the room temperature becomes lower than the set temperature, open the thermostat contact (71). Therefore, although the compressor motor (77) stops, when the room temperature rises above the stored set temperature again, the thermostat contact (71) closes and the compressor motor (77) restarts, and the computer The program in the circuit (72) forms a loop. At this time, it goes without saying that the compressor motor (77) is restarted after the timer elapses for the first set time or longer for the so-called 3-minute restart prevention mechanism, that is, for protection of the power breaker. When the air conditioner is controlled as described above, the temperature / humidity characteristics in the air-conditioned room are as shown in FIG.

[Problems to be Solved by the Invention]

Since the conventional dehumidification operation is configured as described above, there is a problem that it will be too cold if the operation is continued and it is necessary to stop the operation after an appropriate time has elapsed when drying clothes in this operation mode. It was

The present invention has been made to solve the above problems, and an object thereof is to obtain an air conditioner that maintains the indoor temperature after the dehumidifying operation at a comfortable temperature in a speedy manner.

[Means for solving the problem]

An air conditioner according to the present invention includes an air conditioner main body that adjusts the temperature and humidity of indoor air, a selection unit that selects an air conditioning operation mode of the main body, and a main body of the main body based on a selection result of the selection unit. An operation control circuit means for controlling the operation, and when the operation control circuit means selects a dry operation mode as an air conditioning operation mode of the main body, the operation of the main body is operated for a predetermined time in the dry operation mode. A drying operation ending means for controlling the temperature and humidity of the indoor air; and a post-processing means for controlling an operation mode of the main body after the drying operation is completed based on the temperature result of the indoor air controlled by the drying operation ending means. It was done.

Further, the post-processing means stops the operation of the main body when the temperature of the room air after the drying operation of the main body is equal to or higher than a preset temperature.

Further, when the temperature of the room air after the completion of the drying operation of the main body is equal to or lower than a preset temperature, the post-processing means operates the overheating part in the main body to blow out warm air from the main body. To control.

[Action]

In the air conditioner according to the present invention, the selecting means selects the air-conditioning operation mode of the air conditioner main body that adjusts the temperature and humidity of the indoor air, and the operation control circuit means operates the air conditioner main body based on the selection result. In controlling
When the drying operation mode is selected as the air conditioning operation mode of the main body of the air conditioner, the drying operation end means of the operation control circuit means operates the main body in the dry operation mode for a predetermined time to control the temperature and humidity of the indoor air. The post-processing unit controls the operation mode after the completion of the drying operation of the air conditioner main body based on the controlled indoor air temperature result to maintain the indoor air temperature.

Further, the post-processing unit stops the operation of the main body when the temperature of the indoor air after the drying operation of the main body is equal to or higher than the preset temperature, so that the temperature of the indoor air is maintained at the preset temperature or higher. .

Further, since the post-processing means controls the warming air to be blown out from the main body by operating the overheating part in the main body when the temperature of the room air after the drying operation of the main body is equal to or lower than the preset temperature. , The temperature of the indoor air is set to a preset temperature or higher.

〔Example〕

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

FIG. 1 is an electric circuit diagram of an air conditioner which is an embodiment of the present invention, FIG. 2 is a configuration diagram of a switch section of FIG. 1, and FIG. 3 is a flow chart for controlling the operation of this embodiment. . In FIG. 1, (52) is a temperature sensitive resistance element which is a temperature detecting means for detecting room temperature, (54) is a humidity sensor which is a humidity detecting means for measuring indoor humidity, and (1) is a clothing drying mode selected. A switch for heating, dehumidifying, and cooling operation is separately provided as shown in FIG. (57) is a fan which is a blowing means for blowing air, and (58) is a heater which is a heating means for raising the room temperature detected by the temperature detecting means (52). Also,
(2) is a microcomputer, input circuit (3)
And a CPU (4), a memory (5) and an output circuit (6). Here, the input circuit (3) has a temperature-sensitive resistance element (52) for detecting the output from the switch section (1) and room temperature.
And the outputs of the humidity sensor (54) are A / D converters (53), (5
5) is entered via. The output from the output circuit (6) controls ON / OFF of the fan (57) and the heater (58). Incidentally, FIG. 3 is a flowchart of the operation control stored in the memory (5) of the microcomputer (2).

Next, the operation will be described. In FIG. 3, the clothes drying operation switch (12) is turned on to start the operation. In the step (31), the temperature detecting means (52) detects the initial room temperature Tas, and in the step (32), the set temperature lower than the initial room temperature Tas by 3.25 ° C. is determined. Set humidity in step (33)
20% is decided. Steps when operation starts (34)
As shown in (1), the room temperature / humidity is detected by the temperature detecting means (52) and the humidity detecting means (54) at regular intervals, and the temperature / humidity is controlled in step (35). If it is determined in step (36) that the operating time has passed 120 minutes, the clothes drying mode is ended in step (37), and post-processing after the clothes drying mode is ended in step (38).
In step (39), the air blowing operation is performed for 5 minutes, and in step (40), the temperature detecting means (52) detects the room temperature Taml.
Room temperature Taml detected as initial room temperature Tas in step (41)
If the temperature difference between and is 1 ° C or less, the operation is stopped (step (46)), but if the temperature difference is larger than 1 ° C, the heating means (58) is turned on in step (42) to perform the blow operation. To start. In step (43), the room temperature Ta is detected by the temperature detecting means (52), and if the room temperature Ta becomes equal to or higher than the initial room temperature Tas in step (44), the operation is stopped (step (46)). In step (45), the operation is forcibly stopped when the blow operation time exceeds 30 minutes. By such post-treatment operation, the room temperature can be restored to the initial room temperature before the drying operation.

Although the clothes drying mode in which the set humidity is set to 20% is shown in the above embodiment, it is possible to obtain the forced dry operation with a time limit different from the conventional dehumidifying operation by changing the set humidity according to the purpose. it can.

〔The invention's effect〕

Since the present invention is configured as described above, it has the effects described below. In the air conditioner body in which the selecting means selects the air conditioner operation mode of the air conditioner body that harmonizes the temperature and humidity of the indoor air and the operation control circuit means controls the operation of the air conditioner body from the selection result. When the drying operation mode is selected as the air-conditioning operation mode, the drying operation end means of the operation control circuit means operates the main body in the drying operation mode for a predetermined time to control the temperature and humidity of the indoor air, The post-processing means controls the operation mode after the end of the drying operation of the air conditioner main body based on the temperature result of the indoor air to maintain the temperature of the indoor air, so that the indoor temperature after the dehumidifying operation is speedily comfortable. A reliable air conditioner can be obtained.

Further, the post-processing unit stops the operation of the main body when the temperature of the indoor air after the drying operation of the main body is equal to or higher than the preset temperature, so that the temperature of the indoor air is maintained at the preset temperature or higher. Therefore, a highly reliable air conditioner that quickly and comfortably warms the room temperature after the dehumidifying operation is obtained.

Further, since the post-processing means controls the warming air to be blown out from the main body by operating the overheating part in the main body when the temperature of the room air after the drying operation of the main body is equal to or lower than the preset temperature. Since the temperature of the indoor air is set to a temperature equal to or higher than a preset temperature, a highly reliable air conditioner that quickly and comfortably warms the indoor temperature after the dehumidifying operation is obtained.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of an embodiment of the present invention, FIG. 2 is a block diagram of its switch part, FIG. 3 is a flow chart for explaining its operation, FIG. 4 is a refrigerant circuit diagram of a conventional example, and FIG. Fig. 6 is the control circuit diagram, Fig. 6 is a flow chart for explaining the operation, Fig. 7 is a characteristic diagram when the set temperature is calculated,
FIG. 8 is a temperature / humidity characteristic diagram of the room. In the figure, (2) is a microcomputer, (52) is a thermal resistance element, (54) is a humidity sensor, (57) is a fan,
(58) is a heater. The same reference numerals in each figure indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuaki Isono 3-18-1, Oka, Shizuoka-shi, Shizuoka Mitsubishi Electric Corporation Shizuoka Plant (72) Hideaki Nagatomo Inventor 3--18, Oka, Shizuoka-shi No. 1 Mitsubishi Electric Co., Ltd. Shizuoka Works (72) Inventor Hidetetsu Ishioka 3-18-1, Oka Shizuoka-shi, Shizuoka Prefecture Mitsubishi Electric Co., Ltd. Shizuoka Works (72) Inventor Toshihiro Tanaka 3-chome Shizuoka City Shizuoka No. 18-1 Mitsubishi Electric Co., Ltd. Shizuoka Works (72) Inventor Katsuyuki Aoki 3-18-1, Oga Shizuoka City, Shizuoka Prefecture Mitsubishi Electric Co., Ltd. Shizuoka Works (56) References JP, U)

Claims (3)

[Claims] 1. An air conditioner main body that adjusts the temperature and humidity of indoor air, a selection unit that selects an air conditioning operation mode of the main unit, and the operation of the main unit is controlled based on the selection result of the selection unit. Operation control circuit means, and when the operation control circuit means selects a drying operation mode as an air conditioning operation mode of the main body, the operation of the main body is operated in a drying operation mode for a predetermined time, and temperature·
It is characterized by further comprising: a drying operation ending means for controlling humidity, and a post-processing means for controlling an operation mode after completion of the drying operation of the main body based on a temperature result of the indoor air controlled by the drying operation ending means. Air conditioner. 2. When the temperature of the room air after the drying operation of the main body is equal to or higher than a preset temperature, the post-processing means,
The operation of the main body is stopped.
Air conditioner described in. 3. The post-processing means, when the temperature of the room air after the completion of the drying operation of the main body is equal to or lower than a preset temperature,
The air conditioner according to claim 1, wherein the heating unit in the main body is operated to control so that warm air is blown out from the main body.