JP2768171B2 - Sleep timer device for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to temperature control during operation of an air conditioner using a sleep timer.

[0002]

2. Description of the Related Art An air conditioner having a compressor, an evaporator, and a condenser automatically controls the operation of a compressor and the operation of an indoor blower fan according to a signal from a temperature control means that receives temperature data from a temperature sensor. hand,
This is to maintain the indoor air at a constant temperature.

[0003] Such a temperature control means is operated even during sleep. Normally, in order to prevent excessive cooling during sleep, when the sleep operation switch is operated, the temperature control means is set by the temperature setting means. The display temperature is controlled so as to be a plus temperature that is higher by 1 to 2 degrees than the displayed temperature.

In addition, when the air conditioner is operated by the sleep operation switch for a long time, the room temperature is controlled to be increased by a predetermined temperature after a predetermined time.

[0005]

When the good night driving switch is operated as described above, it is preferable that the temperature at which the air conditioner is operated becomes high because the person is sleeping at a low momentum, but this is preferable. This is a setting unique to the air conditioner. For this reason, the temperature often drops during bedtime and becomes cold, and conversely, the phenomenon that the temperature rises and the person feels uncomfortable sleeping often occurs.

[0006] These phenomena are due to the mismatch between the setting of the air-conditioning room and the air conditioner.
It is often the case that the user gets up and changes the set temperature.

[0007]

SUMMARY OF THE INVENTION The present invention senses the condition of a room used by an air conditioner and performs optimum temperature control. The compressor 1 for compressing a refrigerant, an evaporator 2, a condenser 3, A temperature sensor 5 for measuring indoor air temperature and a temperature setting for setting a desired indoor temperature in an air conditioner having an indoor blower fan 4 mounted near the evaporator 2 to cool indoor air by a refrigerating cycle. Means 6 and a timer 7 for counting the time during bedtime operation and instructing operation of the air conditioner for a designated time
A sleep operation switch 8 for activating a timer 7 to start operation at bedtime;
A storage unit 9 for storing the temperature of the temperature sensor 5 when the user operates the storage unit 9 and a comparing unit 10 for comparing the temperature stored in the storage unit 9 with the temperature of the temperature sensor 5 are provided. A sleep timer device for an air conditioner that activates the comparison means 10 after a lapse of time and changes the indoor set temperature during sleep operation based on the output of the comparison means 10.

[0008]

When the air conditioner is actuated by operating the good night operation switch 8, the temperature control means is not actuated immediately by adding one to two degrees to the set temperature as in the conventional product. The temperature at this time is temporarily stored in the storage unit 9 and the operation is performed so that the temperature of the temperature setting unit 6 becomes equal to the temperature. After a certain period of time, the temperature sensor 5 and the temperature data 9 in the storage unit 9 are compared with each other. , And the temperature can be controlled according to the conditions of the room to be used.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 1 is a compressor, 2 is an evaporator, 3 is a condenser, and the refrigerant is sent to the condenser 3 at a high temperature and high pressure in the compressor 1, where it is radiated by cooling and radiating heat. When the liquidized refrigerant is vaporized in the evaporator 2, the blower fan 4 cools the room air passing through the evaporator 2, and the gasified refrigerant is returned to the compressor 1.

Reference numeral 5 denotes a temperature sensor for detecting the temperature of the room air before being cooled by the evaporator 2, and 6 denotes a temperature setting means for setting the temperature of the room. The air conditioner uses the temperature data of the temperature sensor 5 to set the temperature. A temperature control unit that inputs both temperature data controls ON / OFF of the compressor 1 and the amount of air blown by the blower fan 4 so that the temperature is set by the unit 6.

Reference numeral 7 denotes a timer for counting the night operation time. The operation of the air conditioner is stopped by stopping the compressor 1 when the timer 7 counts up. Further, the timer 7 outputs an output signal at a specific time during the sleep operation by the good night operation switch 8, changes the air volume and control temperature of the blower fan 4, and uses the same for controlling the air conditioner.

Reference numeral 9 denotes a storage unit for storing the temperature data of the temperature sensor 5 when the sleeping operation is started by the good night operation switch 8, and reference numeral 10 denotes comparison means for comparing the temperature data of the temperature sensor 5 with the temperature data of the storage unit 9. The comparison means 10 is activated by the output of the timer 7 20 minutes after the sleep operation is started by the good night operation switch 8, and reads the temperature data of the temperature sensor 5, the storage section 9 and the temperature setting means 6. Then, the control rule during the sleep operation is determined based on the difference between the temperature data of the temperature sensor 5 and the temperature data of the storage unit 9 and the difference between the temperature data of the temperature sensor 5 and the set temperature data of the temperature setting unit 6. .

That is, even if the operation is started, the room temperature continues to rise, and when the room temperature after 20 minutes is higher than the set temperature, the cooling requirement is large, and the set temperature of the temperature setting means is prioritized. The operation of outputting the temperature data added from the actually set temperature data from the temperature setting means 6 to the temperature control means during the bedtime operation is stopped, and the set temperature data of the temperature setting means 6 is directly used as the temperature data during the bedtime operation. Output as

Next, even during the bedtime operation, there is almost no change in the room temperature in a balanced manner. When the room temperature after 20 minutes is almost the same as the set temperature, or when the bedtime operation is performed, the room temperature drops favorably. Even if the room temperature after 20 minutes is higher than the set temperature, it soon approaches the set temperature, so the cooling requirement is not so strong. As in the conventional case, the temperature setting means 6 during the sleep operation increases the temperature by one degree every 30 minutes. The data is output to the temperature control means.

On the other hand, when the room temperature is satisfactorily lowered during the bedtime operation and the room temperature after 20 minutes is almost the same as the set temperature, the necessity for cooling is small. The temperature data obtained by adding 0.5 degrees every 6 minutes is output to the temperature control means.

If the maximum value of the temperature data output from the temperature setting means 6 to the temperature control means is set to the maximum plus value, it is possible to cope with long-term bedtime operation. It is practical to set by degrees.

Furthermore, if the continuous operation is set for the first 20 minutes during the bedtime operation irrespective of the temperature data of the temperature sensor 5, accurate indoor temperature conditions can be surely known, and the temperature control performance can be improved. It is possible to set many control rules while improving.

[0018]

As described above, according to the present invention, even if the air conditioner is put to sleep by operating the sleep operation switch 8, the operation is performed in the same manner as the normal operation for the first fixed time, and from the start of the sleep operation. The air-conditioning performance of the room using the air conditioner could be easily known from the change in the room temperature after a certain time.

Further, the air conditioning performance of the room becomes clear, and the plus set state with respect to the set temperature during the sleep operation of the sleep operation switch 8 after a certain period of time can be set to the optimum state by the degree of lowering of the room temperature. The temperature rises too much during bedtime to make it hard to sleep, and conversely, the temperature falls too low to feel cold, and comfortable bedtime can be achieved.

[Brief description of the drawings]

FIG. 1 is a piping diagram showing a refrigeration cycle of an air conditioner of the present invention.

FIG. 2 is a block diagram of a control unit of the air conditioner of the present invention.

FIG. 3 is a flowchart of a control unit of the air conditioner of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Compressor 2 Evaporator 3 Condenser 4 Blower fan 5 Temperature sensor 6 Temperature setting means 7 Timer 8 Sleeping operation switch 9 Storage part 10 Comparison means

Claims (1)

(57) [Claims] 1. An air conditioner having a compressor 1 for compressing a refrigerant, an evaporator 2, and a condenser 3, having an indoor blower fan 4 mounted near the evaporator 2, and cooling indoor air by a refrigerating cycle. Temperature sensor 5 for measuring the air temperature of the vehicle, temperature setting means 6 for setting a desired indoor temperature, and a timer 7 for counting the time during bedtime operation and instructing the operation of the air conditioner for a designated time.
A sleep operation switch 8 for activating a timer 7 to start operation at bedtime;
A storage unit 9 for storing the temperature of the temperature sensor 5 when the user operates the storage unit 9 and a comparing unit 10 for comparing the temperature stored in the storage unit 9 with the temperature of the temperature sensor 5 are provided. A sleep timer device for an air conditioner that activates the comparison means 10 after a lapse of time and changes the indoor set temperature during sleep operation based on the output of the comparison means 10.