JPH0229942B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air conditioner.

BACKGROUND ART Conventionally, methods have been proposed in which physiological information about the human body is directly detected and equipment is controlled based on the information to improve comfort. For example, in 1987-
In JP 104717, it is assumed that there is a strong correlation between the skin surface temperature of the human body and the sense of comfort, and the skin temperature is detected and the equipment is controlled based on the detected value.

Further, Japanese Patent Laid-Open No. 56-63510 discloses a means for obtaining a feeling of comfort by detecting the state of sweating and changing the amount of air blown accordingly.

Problems to be Solved by the Invention However, the above-mentioned means have the following problems.

(1) Means for detecting skin temperature In general, skin temperature under comfortable conditions varies from person to person.
It has a distribution as shown in FIG. However, the values used to control the equipment are average values obtained through subjective reporting experiments with a large number of subjects, and do not take into account differences between men and women of all ages or individual differences. Therefore, even if a device is controlled based on such a universal value, the environment created by the device may not be comfortable for everyone.

(2) Means for detecting sweating The human body's sweating is already quite unpleasant, and even if you control the equipment after detecting sweating, the feeling of comfort will not last long. , the disadvantage is that the discomfort of sweating continues intermittently.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air conditioner that provides a comfortable environment for the user regardless of individual differences, and that maintains this condition continuously.

Means for Solving the Problems In order to achieve this object, the present invention provides a perspiration detection means for detecting perspiration of a human body, a physical quantity detection means for detecting a physical quantity of an air-conditioned room or a human body, and a perspiration detection means for detecting perspiration of a human body. a calculation section that performs calculations based on the detection result of the physical quantity detection means when a predetermined perspiration is detected; a storage section that stores the calculation results of the calculation section; and a detection of the contents of the storage section and the physical quantity detection means. and a control unit that controls the equipment based on the results.

Operation In the above configuration, while the device is operating, physical quantities such as temperature, humidity, or body temperature in the air-conditioned room are detected at the time when sweating of the user is detected, and calculations such as multiplying the detection result by a predetermined coefficient are performed. By comparing the calculation results with subsequent physical quantities such as temperature and humidity and controlling the operation of the equipment, air conditioning is performed without causing unpleasant conditions such as sweating.

Embodiment Hereinafter, as an embodiment of the present invention, a case where the perspiration state and the room temperature are detected and the deflection control of the blown airflow is performed will be described with reference to FIGS. 1 to 5.

In FIG. 1, reference numeral 1 denotes an air conditioner main body of the present invention, which has a heat exchanger 2, an air blower 3, etc. inside. A wind direction control blade 5 is provided at the air outlet 4 as a means for deflecting the air flow. The wind direction control blade 5 is connected to a motor 7 via a shaft 6 and rotates automatically.
Further, the suction port 8 is provided with a thermistor 9 as a physical quantity detection means for detecting the indoor temperature.

FIG. 2 shows a circuit diagram of the sweat detection means 10, which includes an electrode 11, a constant pressure source 12, an ammeter 13, and a current value change due to a change in resistance of the electrode 11 attached to the skin surface. Comparator 14
Consists of.

FIG. 3 is a block diagram of the control device 15, the perspiration detection means 10, and the calculation unit 1 that calculates the output of the thermistor 9 when the perspiration detection means 10 detects a predetermined perspiration.
6, a storage section 17 that stores the calculation results of the calculation section 16, and a motor control section 18 that controls the rotation of the motor 7 based on the contents of the storage section 17 and the instantaneous indoor temperature detected by the thermistor 9.

The operation when performing cooling operation in the above configuration will be explained.

During normal cooling operation, the direction of the blown airflow is directed upwards in the room as shown in Figure 4 to reduce the indoor temperature distribution, and the cold air from the blown airflow is directed directly to the human body 19.
This prevents the cold wind from causing discomfort.

During this cooling operation, when the human body 19 feels hot and sweats, the resistance value between the electrodes 9 attached to the skin surface decreases and the current value increases. This is measured by the ammeter 13, and the comparator 1 confirms that the value indicates the sweating state.
Judgment is based on 4. At that point, a predetermined value of the room temperature detected by the thermistor 9 is sensed by the calculation unit 16 and stored in the storage unit 17 .

Then, the motor control unit 18 rotates the motor 7, thereby rotating the wind direction control blades 5 so that the direction of the blowing airflow is directed downward as shown in FIG.
Discomfort is eliminated by directly applying cold air to 9 for a predetermined period of time.

After that, the temperature inside the room fluctuates depending on factors such as turning the compressor on and off and opening and closing the door, but the thermistor 9
By rotating the wind direction control blade 5 in the above method when detecting the value stored in the storage unit 17,
Thereafter, it will be possible to eliminate discomfort before sweating begins.

By rotating the wind direction control blades 5, the blowing airflow is applied to the human body 19. When the set temperature is set relatively high in the on-off control, the device's differential causes the airflow to be applied to the human body 19 near the on-point of the heat source. When the temperature reaches a high temperature, discomfort arises due to the heat, but at this time, the above control eliminates this discomfort, so even if the set temperature is set high, you will not feel discomfort and can drive energy-savingly. It also has this effect.

Effects of the Invention As described above, the air conditioner of the present invention provides the following effects.

(1) Since the device is configured to detect perspiration that corresponds to discomfort in the human body and control the device based on the results, it is possible to avoid individual differences that are a problem with methods based on statistically determined comfort ranges. It is possible to judge the discomfort of all people and take appropriate control over it.

(2) Detect the physical quantities of the air-conditioned room or the human body at the time sweating is detected, calculate and correct the detection results and store them, and then compare the stored contents with the subsequent physical quantities of the air-conditioned room or the human body. Since the equipment is controlled, discomfort in the human body is detected before sweating begins, and appropriate measures are taken against it, so a comfortable indoor environment that does not cause discomfort can be maintained at all times.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an air conditioner showing an embodiment of the present invention, FIG. 2 is a circuit diagram of the sweat detection means in the same device, FIG. 3 is a control block diagram in the same device, and FIG. 4 is the same. 5 is a cross-sectional view showing the state of airflow during normal cooling operation by the device; FIG. 5 is a cross-sectional view showing the state of airflow during cooling operation when the device detects perspiration and predicts sweating; and FIG. It is a distribution map showing individual differences in perceived skin temperature. DESCRIPTION OF SYMBOLS 1...Air conditioner main body, 5...Wind direction control blade as a means of a control device, 7...Motor, 9...
Thermistor, 10... Sweating detection means, 15... Control device, 16... Arithmetic unit, 17... Storage unit, 18
...Motor control section.

Claims (1)

[Scope of Claims] 1. Perspiration detection means for detecting perspiration of a human body, physical quantity detection means for detecting a physical quantity of an air-conditioned room or the human body, and said physical quantity detection means when said perspiration detection means detects a predetermined perspiration. a calculation unit that performs calculations based on the detection results of the calculation unit, a storage unit that stores the calculation results of the calculation unit, and a control unit that controls the equipment based on the contents of the storage unit and the detection results of the physical quantity detection means. An air conditioner equipped with a control device consisting of. 2 Physical quantity detection means include temperature, humidity,
The air conditioner according to claim 1, which detects one or more of radiation amount and wind speed. 3. The air conditioner according to claim 1, wherein the control section is a blowout airflow deflecting means that deflects the direction of the blowout airflow.