JP2006284132A - Air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To condition air to be comfortable for users while improving energy saving with operation depending on an inside air conditioning load even after the operation of an off-timer. <P>SOLUTION: This air-conditioner comprises a near-human-body temperature detecting means 2, an outside air temperature detecting means 3, a suction temperature detecting means 4, a temperature setting means 5, an off-timer means 1, a ventilating means 6 for exhausting inside air to the outside and introducing outside air to the inside, a first contamination degree detecting means 8 for detecting the contamination degree of inside air, a second contamination degree detecting means 8 for detecting the contamination degree of outside air, and a carbon dioxide concentration detecting means 9 for inside air. After the operation of the off-timer, cooling operation, ventilating operation or stop/continuation is performed depending on a temperature near a human body, the conditions of an outside air temperature, the contamination degrees of the inside air and the outside air and the concentration of carbon dioxide in the inside air. Thus, when the air conditioning load is greater, additional cooling operation is performed for users to sleep with no unpleasant feel, and when the air conditioning load is smaller, the outside air is introduced to prevent wasteful energy consumption. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to comfort control of an air conditioner having a cut-off timer function.

FIG. 3 is a control block diagram showing a general configuration of a conventional air conditioner. Conventionally, this type of technique controls forcibly for a certain period of time even after the end of the cut-off timer, and then continues the drying or blowing operation for a certain period of time (see, for example, Patent Document 1).
JP-A-55-102852

  However, in the above-described conventional configuration, the operation before the end of the timer is always continued after the end of the turn-off timer, and thereafter, the cooling or blowing operation is performed for a predetermined time. The air conditioner continues to operate despite the fact that it is no longer necessary to operate, so it has problems in terms of energy conservation, which has become a hot topic in recent years, and health problems in order to keep the user on the wind. It was.

  The present invention solves the above-mentioned conventional problems, and after the turn-off timer expires, indoor air is discharged to the outside without performing additional cooling or dehumidifying operation depending on the indoor / outdoor air conditioning load and the degree of contamination of outdoor air. The purpose is to improve the energy saving and provide comfortable air conditioning for users by introducing outdoor air indoors.

In order to solve the above-described conventional problems, an air conditioner of the present invention includes a human body temperature detecting unit that detects a temperature near the human body, an outside air temperature detecting unit that detects an outdoor temperature, and an intake temperature of the air conditioner. A suction temperature detecting means for detecting air temperature, a temperature setting means for setting a control target room temperature of the air conditioner,
A first dirt degree detecting means for detecting the degree of dirt in indoor air, a second dirt degree detecting means for detecting the degree of dirt in outdoor air, a carbon dioxide concentration detecting means for detecting the carbon dioxide concentration in indoor air, Comparing the operating time with the timer set value, the timer unit that stops the operation of the air conditioner when the timer set value is reached, and the ventilation unit that discharges the indoor air to the outside and introduces the outdoor air into the indoor As an operation mode after the end of the timer operation, the temperature near the human body is higher than the first predetermined temperature, the outdoor temperature is lower than the second predetermined temperature, and the degree of outdoor air contamination is lower than the degree of indoor air contamination. In the case where the carbon dioxide concentration of indoor air is high, outdoor air is introduced indoors by the ventilation means, the temperature in the vicinity of the human body is higher than the first predetermined temperature, and the outdoor temperature is the second place. When the temperature of the outdoor air is lower than that of the indoor air and the level of carbon dioxide in the indoor air is low, or when the temperature in the vicinity of the human body is higher than the first predetermined temperature and the outdoor temperature is the second predetermined temperature. When the temperature is higher than the temperature, control means for performing cooling or dehumidifying operation without performing ventilation is provided.

  As a result, when the air-conditioning load is large or the degree of dirt in outdoor air is high, additional driving is performed, and the user can go to bed without discomfort. In addition, when the air conditioning load is low, it does not operate excessively, exhausts hot indoor air, introduces air that is cooler and less dirty than the outdoors, and improves comfort and wastes energy. Consumption can be prevented.

The air conditioner of the present invention is additionally operated when the air conditioning load is large, and the user can go to bed without discomfort. In addition, when the air conditioning load is low, extra cooling operation is not performed, high-temperature indoor air is discharged, and air that is cooler and less dirty than the outside is introduced to improve comfort and useless energy. Consumption can be prevented.

The present invention includes a human body temperature detecting means for detecting a temperature in the vicinity of a human body, an outside air temperature detecting means for detecting an outdoor temperature, a suction temperature detecting means for detecting a suction temperature of an air conditioner, and a temperature for setting a room temperature. A setting means, a switching timer means for stopping the operation of the air conditioner when the operation time is compared with the timer setting value and the timer setting value is reached, and a ventilation means for introducing the outdoor air into the room, and the switching timer operation After completion, when the temperature near the human body is higher than the first predetermined temperature, the outdoor temperature is lower than the second predetermined temperature, and the degree of dirt of the outdoor air is lower than the degree of dirt of the indoor air, or the carbon dioxide concentration of the indoor air is If it is high, the indoor air is exhausted outdoors by ventilation means and the outdoor air is introduced indoors. Also, the temperature near the human body is higher than the first predetermined temperature, the outdoor temperature is lower than the second predetermined temperature, the degree of dirt of the outdoor air is higher than the degree of dirt of the indoor air, and the carbon dioxide concentration of the indoor air is When the temperature is low, or when the temperature near the human body is higher than the first predetermined temperature and the outdoor temperature is higher than the second predetermined temperature, the cooling operation is performed.

  As a result, when the air conditioning load is large, additional driving is performed, and the user can go to bed without discomfort. Further, when the air-conditioning load is small, it is possible to prevent wasteful energy consumption without impairing comfort by performing ventilation operation without excessive cooling operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a control block diagram of the air conditioner according to Embodiment 1 of the present invention. In FIG. 1, the off timer means 1 always compares the timer set value with the operation time, and transmits a stop signal of the air conditioner to the control means 10 when the timer set time is reached. After receiving this stop signal, the human body temperature detecting means 2, the outside air temperature detecting means 3, the indoor air dirt degree detecting means 7, the outdoor air dirt degree detecting means 8, and the carbon dioxide concentration for detecting the carbon dioxide concentration in the indoor air. The operation of the air conditioner is determined according to each detection value of the detection means 9. About the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  FIG. 2 is a flowchart showing the operation of the air conditioner according to the first embodiment of the present invention. In step 1 and step 2, the cut-off timer time is determined. If the timer time is reached, the air conditioner is stopped in step 3. In step 4, the temperature near the human body is detected. At this time, if the temperature in the vicinity of the human body is lower than the predetermined temperature T1 ° C., it is not necessary to operate the air conditioner. Therefore, in step 6, the stop state by the timer operation is continued. If the temperature in the vicinity of the human body is higher than the predetermined temperature T1 ° C., the outside air temperature is determined in step 5. At this time, if the outside air temperature is higher than the predetermined temperature T2 ° C., it is determined that the air conditioning load is large after the turn-off timer operation, and the air conditioner is cooled in step 7. If the outside air temperature is lower than the predetermined temperature T2 ° C., the degree of contamination of the indoor air and the outdoor air is determined at step 8. If the degree of dirt in the outdoor air is higher than the degree of dirt in the indoor air, the carbon dioxide concentration is determined in step 9, and if the carbon dioxide concentration is low, the cooling operation is performed in step 7. If the carbon dioxide concentration is high, in step 10 Allow the air conditioner to ventilate. If the dirt level of the outdoor air is lower than the dirt level of the indoor air, the air conditioner is ventilated at step 10. As a result, when the degree of dirt in the outdoor air is lower than the degree of dirt in the indoor air, or when the indoor carbon dioxide concentration is high, the indoor hot air is discharged outdoors and the outdoor cold air is introduced indoors. The room temperature can be lowered.

  As described above, in this embodiment, as the operation mode of the air conditioner after the end of the timer operation, when the temperature near the human body is low, the stop state is continued, the temperature near the human body is high, and the outside air temperature is also By performing additional cooling operation in a high air conditioning load state, the user can go to bed without discomfort. Also, if the temperature near the human body is high, the outside air temperature is low, and the degree of dirt in outdoor air is lower than the degree of dirt in indoor air, or if the indoor carbon dioxide concentration is high, ventilation operation is performed, especially in summer. Even if the room temperature rises due to radiant heat from the wall and ceiling of the private room when the air conditioner is stopped after the timer operation, the room temperature can be lowered without performing cooling operation, and comfortable air conditioning can be realized, and it is also wasteful in terms of energy saving It has effects such as preventing energy consumption.

  As described above, the air conditioner according to the present invention additionally performs cooling operation when the air conditioning load is large in the operation mode after the turn-off timer operation, and the user can go to bed without discomfort. In addition, when the air conditioning load is small, ventilation operation is performed instead of cooling operation, so that unnecessary energy consumption can be prevented without excessive cooling operation. It is.

Control block diagram of the air conditioner in Embodiment 1 of the present invention The flowchart which shows operation | movement of the air conditioner in Embodiment 1 of this invention. Control block diagram of conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Time-off timer means 2 Human body vicinity temperature detection means 3 Outside air temperature detection means 4 Suction temperature detection means 5 Temperature setting means 6 Ventilation means 7 First dirt degree detection means 8 Second dirt degree detection means 9 Carbon dioxide concentration detection means 10 Control means

Claims (1)

A human body temperature detecting means for detecting the temperature near the human body, an outside air temperature detecting means for detecting the outdoor temperature, a suction temperature detecting means for detecting the suction temperature of the air conditioner, and a control target room temperature of the air conditioner are set. Temperature setting means, first dirt degree detecting means for detecting the degree of dirt in indoor air, second dirt degree detecting means for detecting the degree of dirt in outdoor air, and carbon dioxide for detecting the carbon dioxide concentration in indoor air The carbon concentration detection means, the shut-off timer means for stopping the operation of the air conditioner when the operation time is compared with the timer set value, and the timer set value is reached, and the indoor air is discharged outdoors and the outdoor air is taken indoors As a mode of operation after the end of the timer operation, the temperature in the vicinity of the human body is higher than the first predetermined temperature, the outdoor temperature is lower than the second predetermined temperature, and the degree of contamination of outdoor air. Is lower than the degree of contamination of indoor air, or when the carbon dioxide concentration of indoor air is high, outdoor air is introduced indoors by the ventilation means, the temperature near the human body is higher than the first predetermined temperature, and the outdoor temperature Is lower than the second predetermined temperature, the degree of dirt in the outdoor air is higher than the degree of dirt in the indoor air, and the carbon dioxide concentration in the indoor air is low, or the temperature near the human body is higher than the first predetermined temperature and the outdoor temperature When the air temperature is higher than the second predetermined temperature, the air conditioner has control means for performing cooling or dehumidifying operation without performing ventilation.

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