JPH06307695A - Air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] No sleep chill due to cooling operation during sleep,
The purpose is to provide an air conditioner that always creates a comfortable sleeping environment. [Structure] FIG. 1 shows a control flowchart for cooling sleep. When the "sleep mode" is selected, the dehumidifying priority operation is always performed at the start of operation for an arbitrary time or until an arbitrary set temperature is reached, and then the operation is switched to the cooling operation. [Effect] During cooling / sleeping, dehumidifying priority operation is always performed at the start of driving, and the cooling operation is started after the indoor heat and the human body's sweat are absorbed to prevent a cold sleep and always provide a comfortable sleeping environment. be able to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner which always provides comfortable temperature and humidity control without chilling during cooling and sleeping.

[0002]

2. Description of the Related Art Up to now, various methods have been considered in order to improve comfort during sleep. FIG. 3 shows an example of conventional control during cooling sleep.

In FIG. 3, during normal cooling operation, ON / OFF of the compressor is repeated within a range of ± Δθ1 of the set temperature.
When the "Good night" button of the air conditioner is pressed at the time of entering T0 at the time of entering the bed, the set room temperature is changed to .theta.SET which is increased by .DELTA..theta. After an arbitrary time (normally 1 hour). At this time, since the set temperature becomes higher than room temperature, the compressor stops. The indoor temperature during cooling sleep is set to θSET, and when the indoor temperature rises over time and reaches θSET + Δθ1 temperature, the compressor turns on and cooling operation starts. After that, when the indoor temperature falls and reaches the temperature θSET-Δθ1, the compressor is turned off again and the cooling operation is stopped. After that, this is repeated during sleep. Further, there is also control means for issuing an operation command to the compressor in response to a signal of a rate of change of the room temperature detected by the room temperature detecting means when the compressor is stopped. As such a known example, Japanese Patent Laid-Open No. 2-10044
There is a gazette.

[0004]

However, in the conventional operation pattern as described above, the operation mode is only the cooling mode, and when cold wind is discharged and directly hits the human body, the sweat generated by the sultry heat cools down and the person cools down. There was a drawback that it would end up. In the conventional example, from midnight to dawn, as the outside air temperature decreases and the load on the room decreases,
Even if the compressor is off, the room temperature does not rise much, but due to the diffusion phenomenon of moisture from the surrounding walls, the humidity rises, creating a very stubborn indoor environment and causing sweating and sleepiness. There was a problem that sometimes a situation such as waking up occurred, and it was not always possible to create a comfortable sleeping environment.

In view of the above problems, it is an object of the present invention to create an always comfortable sleeping environment in which the user does not feel cold in the sleep driving mode. Also, as the outside air temperature decreases and the load on the room decreases, the room temperature does not rise much even when the compressor is off, but the humidity rises due to the diffusion phenomenon of moisture from the surrounding wall, The purpose is to eliminate the feeling of sultry heat even if the indoor environment becomes squeaky.

[0006]

In order to solve the above problems, an air conditioner of the present invention comprises a refrigeration cycle in which a compressor, an outdoor heat exchanger, a pressure reducer and an indoor heat exchanger are sequentially connected by a pipeline. An indoor unit consisting of an indoor heat exchanger, an air blower for an indoor heat exchanger, a reheater such as a heater, and an indoor air blowing circuit, a room temperature detecting means for detecting an indoor temperature, and a room temperature setting means for setting an indoor temperature, The room temperature detected by the room temperature detection means when the compressor is stopped and the compressor is started / stopped by comparing the difference between the temperature set by the room temperature setting means and the room temperature detected by the room temperature detection means during cooling operation. The control means for issuing an operation command to the compressor in response to the signal of the change rate, the indoor humidity detecting means for detecting the indoor humidity, and the humidity setting means for setting the indoor humidity, and the humidity setting means. The control means for comparing the difference between the set humidity and the indoor humidity detected by the humidity detecting means and issuing a start / stop command to the compressor, and a dehumidifying priority operation at the start of the sleep operation mode must be provided. First, the sweat is dried, and then the cooling operation is performed.

[0007]

With the above structure, the air conditioner of the present invention detects the room temperature by the room temperature detecting means, the room temperature setting means for setting the room temperature, and the set temperature and the room temperature detecting means in the room temperature setting means during the cooling operation. Compared with the difference between the room temperature and the operating / stopping command to the compressor, the operating command is sent to the compressor according to the room temperature change rate signal detected by the room temperature detection means when the compressor is stopped. Providing a control means for outputting and an indoor humidity detecting means for detecting the indoor humidity,
A humidity setting means for setting the indoor humidity and a control means for comparing the difference between the set humidity in the humidity setting means and the room humidity detected by the humidity detecting means to issue an operation / stop command to the compressor are provided. Since the dehumidifying priority operation is always provided at the start of the operation in the sleep operation mode and the sweat is first dried, it is possible to create an always comfortable sleeping environment in which there is no chill in the cooling operation during sleep.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a flow chart during cooling sleep of this embodiment. When the "good night mode" is selected, it is confirmed in step 1 (S1) whether the operation elapsed time ΔT has passed an arbitrary time (usually 1 hour). When the operation elapsed time ΔT has elapsed for one hour, the room temperature setting means 15 sets the room set temperature to θSET increased by Δθ in step 2 (S2). Then, step 3 (S3)
Then, the room temperature detected by the room temperature detecting means 14 is compared with the set temperature θSET-Δθ1. If the room temperature has reached a temperature lower than the set temperature θSET-Δθ1, the process proceeds to step 5 to perform compression. A stop signal is sent to the machine 1, but if not, the process proceeds to step 4 (S4) to continue the operation of the compressor 1. After the compressor 1 stops, in step 6 (S6), the room temperature and the set temperature θSET
If the indoor temperature has reached a temperature higher than the set temperature θSET, the process proceeds to step 7 (S7), an operation signal is sent to the compressor 1 and the reheater 12, and the dry operation is performed. If not, step 8
Proceed to (S8). In step 8 (S8), the degree of increase in room temperature is determined. That is, when the rate of change dθ / dt of the room temperature when the compressor 1 is stopped is larger than a predetermined value (dθ / dt) SET, that is, when the room temperature rises rapidly, the process proceeds to step 7 (S7) and the compressor proceeds. 1 and the reheater 12 are sent an operation signal to perform dry operation, but if the rate of change dθ / dt is smaller than a predetermined value (dθ / dt) SET, that is, if the indoor temperature rise is not rapid Goes to step 9 (S9) to compare the indoor humidity W with the set humidity WSET (normally 60%). If the indoor humidity has reached a humidity higher than the set humidity WSET, go to step 9 for compression. An operation signal is sent to the machine 1 and the reheater 12 to perform the dry operation. If not, the process returns to step 6 and the above flow is repeated. When the dry operation is performed in step 7 (S7), the operation proceeds to step 10 (S10), the operation time of the dry operation is measured, and when the set time TA elapses, the operation proceeds to step 11 (S11), where the indoor temperature and the set temperature are set. Comparison with θSET1 is made, and if the room temperature has reached a temperature higher than the set temperature θSET1, the process returns to step 3, otherwise step 12 (S
Proceeding to 12), the indoor humidity is checked, and if the indoor humidity is not lower than the set humidity WSET, the process returns to step 7 and the dry operation is continued. When the indoor humidity is lower than the set humidity WSET in step 12, the process returns to step 3 and the above contents are repeated.

FIG. 2 shows a time chart based on the flowchart of FIG. During normal cooling operation, set room temperature ± △
The cooling operation is repeated in the range of θ1. When the "Good night" button is pressed at the time of T0, the measurement of the operation elapsed time ΔT is started. In this embodiment, the set temperature is set at T1 after one hour has elapsed.
The cooling operation is stopped because the θ is increased to θSET. After that, the room temperature gradually rises and the dry operation is started at T2 when it reaches θSET. Since the dry operation is the dehumidifying priority operation, the room temperature gradually rises and reaches θSET1, but the elapsed time of the dry operation is an arbitrary set time TA (20 in this embodiment).
Since (minutes) has not elapsed, the dry operation is continued until the set time TA, and the dry operation is stopped at T4, and the cooling operation is started. The cooling operation is stopped at T5 when the room temperature drops to θSET-Δθ1. When the room temperature rises again and reaches θSET, dry operation is started and the set time TA is reached at T7.
However, since the room temperature has not reached θSET1, the dry operation is continued. When the room temperature reaches θSET1 T8
Moves to cooling operation. The same operation is repeated thereafter.
Although not shown in the figure, during the "good night" operation, even if the room temperature has not risen to θSET, the rate of increase in room temperature dθ / dt
Is larger than a predetermined value (dθ / dt) SET and the indoor humidity is higher than the set humidity WSET, the dry operation is started.

FIG. 4 is a refrigeration cycle diagram of an air conditioner showing an embodiment of the present invention. In FIG. 4, 1 is a compressor, 2 is an outdoor heat exchanger, 3 is a decompressor, 4 is an indoor heat exchanger, and 5 is an accumulator, which are sequentially connected by a pipe line 6 to form a refrigeration cycle 7.

FIG. 5 is a block diagram of the indoor unit of the air conditioner of this embodiment. In FIG. 5, 4 is an indoor heat exchanger, 10 is an indoor heat exchanger blowing means, 11 is an indoor blowing circuit, and 12 is a reheater such as a heater, which constitutes an indoor unit 13. Reference numeral 14 is a room temperature detecting means for detecting the room temperature, 15 is a room temperature setting means for setting the room temperature, and 18 is a comparison of the difference between the set temperature in the room temperature setting means 15 and the room temperature detected by the room temperature detecting means 14. It is a control unit that issues an operation / stop command to the compressor 1 and also issues an operation command to the compressor 1 in response to a signal indicating the rate of change of the room temperature detected by the room temperature detection unit when the compressor 1 is stopped. Further, the control means 18 is a control means for comparing the difference between the indoor humidity detecting means 16 for detecting the indoor humidity and the indoor humidity setting means 17 for setting the indoor humidity and issuing an operation stop command to the compressor 1. During the dry operation (dehumidification priority operation), the reheater 12 (heater in this embodiment) is energized,
The air once cooled by the indoor heat exchanger 4 is warmed and discharged.

[0013]

According to the present invention, it is possible to provide a always comfortable sleeping environment in which sweat is dried and there is no chill.

[Brief description of drawings]

FIG. 1 is a flow chart during cooling sleep in an embodiment of the present invention.

FIG. 2 is a time chart during cooling sleep in the embodiment of the present invention.

FIG. 3 is a conventional time chart during cooling sleep.

FIG. 4 is a refrigeration cycle diagram of an air conditioner showing an embodiment of the present invention.

FIG. 5 is a configuration diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Compressor, 2 ... Outdoor heat exchanger, 3 ... Decompressor, 4 ... Indoor heat exchanger, 6 ... Pipe line, 10 ... Blower means for indoor heat exchanger, 11 ... Indoor ventilation circuit, 12 ... Reheater, 13 ... Indoor unit, 14 ... Room temperature detecting means, 15 ... Room temperature setting means, 16 ... Indoor humidity detecting means, 17 ... Indoor humidity setting means, 18 ... Control means.

Claims (3)

[Claims] 1. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger are sequentially connected by pipes, the indoor heat exchanger, an indoor heat exchanger blowing means, an indoor blowing circuit, and reheat. An indoor unit consisting of a chamber, a room temperature detecting means for detecting the room temperature, a room temperature setting means for setting the room temperature,
The controller is configured to compare the difference between the set temperature in the room temperature setting means and the room temperature detected by the room temperature detecting means during the cooling operation, and to issue a start / stop command to the compressor. An air conditioner characterized by performing dehumidifying priority operation for an arbitrary time at the start. 2. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a decompressor and an indoor heat exchanger are sequentially connected by pipes, the indoor heat exchanger, an indoor heat exchanger blowing means, an indoor blowing circuit and reheat. An indoor unit consisting of a chamber, a room temperature detecting means for detecting the room temperature, a room temperature setting means for setting the room temperature,
During the cooling operation, the difference between the set temperature in the room temperature setting means and the room temperature detected by the room temperature detection means is compared, and an operation / stop command is issued to the compressor, and the room temperature detection means is used when the compressor is stopped. An air conditioner characterized by comprising a control means for issuing an operation command to the compressor in response to a detected room temperature change rate signal, and performing dehumidification priority operation for an arbitrary time at the start of operation in the sleep operation mode. . 3. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger are sequentially connected by a pipeline, the indoor heat exchanger, an indoor heat exchanger blowing means, an indoor blowing circuit, and reheat. An indoor unit consisting of a chamber, a room temperature detecting means for detecting the room temperature, a room temperature setting means for setting the room temperature,
During the cooling operation, the difference between the set temperature in the room temperature setting means and the room temperature detected by the room temperature detection means is compared, and an operation / stop command is issued to the compressor, and the room temperature detection means is used when the compressor is stopped. In an air conditioner composed of control means for issuing an operation command to the compressor according to the detected rate of change in indoor temperature, an indoor humidity detecting means for detecting indoor humidity is provided to set the indoor humidity. Humidity setting means to perform, comparing the difference between the set humidity in the humidity setting means and the indoor humidity detected by the humidity detecting means, the control means for issuing an operation / stop command to the compressor is provided, and the sleep operation mode An air conditioner characterized by performing dehumidifying priority operation for an arbitrary time at the start of operation.