阅读说明：本技术 空调机 (Air conditioner ) 是由 栗原诚 宇野义隆 于 2018-03-01 设计创作，主要内容包括：空调机具有：空气温度检测单元,其检测空气调节对象空间的空气温度；人体检测单元,其检测空气调节对象空间内的人体；推断单元,其推断由人体检测单元检测到的人的冷热感；以及控制单元,其基于由推断单元针对检测到的所有人推断出的冷热感而修正空气温度或者设定温度的值,使用修正后的值而控制制冷循环。(The air conditioner comprises: an air temperature detection unit that detects an air temperature of the air conditioning target space; a human body detection unit that detects a human body in the air conditioning target space; an estimation unit that estimates a thermal sensation of the person detected by the human body detection unit; and a control unit that corrects the value of the air temperature or the set temperature based on the thermal sensation estimated by the estimation unit for all the detected persons, and controls the refrigeration cycle using the corrected value.)

1. An air conditioner is provided with:

an air temperature detection unit that detects an air temperature of the air conditioning target space;

a human body detection unit that detects a human body in the air conditioning target space;

an estimation unit that estimates a thermal sensation of the person detected by the human body detection unit; and

and a control unit that corrects the value of the air temperature or the set temperature based on the thermal sensation estimated by the estimation unit for all the detected persons, and controls the refrigeration cycle using the corrected value.

2. The air conditioner according to claim 1,

the control unit controls the refrigeration cycle so that the highest thermal sensation is converged to a neutral range when the highest thermal sensation among the detected thermal sensations of all persons is lower than the neutral range.

3. The air conditioner according to claim 2,

the control unit corrects the set temperature to a high value according to a difference between the neutral range and the maximum thermal sensation, or corrects the air temperature to a low value according to the difference.

4. The air conditioner according to claim 1,

when the lowest thermal sensation among the detected thermal sensations of all the persons is higher than a neutral range, the control unit controls the refrigeration cycle so that the lowest thermal sensation converges in the neutral range.

5. The air conditioner according to claim 4,

the control unit corrects the set temperature to a low value according to a difference between the neutral range and the lowest thermal sensation, or corrects the air temperature to a high value according to the difference.

6. The air conditioner according to any one of claims 1 to 5,

further comprising:

an air volume adjusting unit that adjusts the volume of blown air; and

an air direction adjusting unit that adjusts the blowing air direction,

the human body detecting unit detects a position of a human,

the estimation means calculates, for each of all the detected persons, a wind speed of wind blowing to the person from the position, and a wind direction and a wind volume with respect to the position, and estimates the thermal sensation using values of parameters including the calculated wind speed.

7. The air conditioner according to claim 6,

the air conditioner also has a blow-out temperature detection unit that detects a blow-out temperature,

the estimation unit estimates the thermal sensation by including the blowing temperature in the parameter.

8. The air conditioner according to claim 6 or 7,

the air conditioner further has a floor temperature detecting unit that detects a floor temperature,

the estimation unit estimates the thermal sensation by including the floor temperature in the parameter.

9. The air conditioner according to any one of claims 6 to 8,

the air conditioner further includes humidity detection means for detecting the air humidity in the air conditioning target space,

the estimation unit estimates the thermal sensation by including the air humidity in the parameter.

10. The air conditioner according to any one of claims 1 to 9,

the air conditioner also has an operation part with a display part,

when the control of the refrigeration cycle is executed using the corrected value of the air temperature or the set temperature, the control unit causes the display unit to display the content of the air conditioning control based on the thermal sensation of the detected owner.

Technical Field

The present invention relates to an air conditioner including a refrigerant circuit.

Background

In a conventional air conditioner, it has been proposed to calculate a thermal sensation estimation value from measurement data of a skin temperature of an arm of a person and control a rotation speed of a compressor based on a deviation between the calculated thermal sensation estimation value and a thermal sensation target value, thereby performing air conditioning (see, for example, patent document 1).

Further, an air conditioner is proposed which comprises: a sensible temperature is calculated from a radiant heat temperature detected by an infrared sensor, the sensible temperature is compared with a threshold temperature, and when the sensible temperature is lower than the threshold temperature, it is determined that the sensible temperature is sufficiently low, and the set temperature is corrected to a high value (for example, see patent document 2).

Patent document 1: japanese laid-open patent publication No. H08-128694

Patent document 2: japanese patent laid-open publication No. 2011-027305

In the techniques disclosed in patent documents 1 and 2, the thermal sensation is estimated from the skin temperature of the arm or the radiant heat temperature in the room, and the deviation between the estimated thermal sensation and the target value of the thermal sensation is obtained to control the air conditioner. These techniques do not consider the case where a plurality of persons are present in the space to be air-conditioned, and are difficult to apply to control for improving the thermal sensation of the plurality of persons present in the space to be air-conditioned.

Disclosure of Invention

The present invention has been made to solve the above-described problems, and provides an air conditioner that brings the thermal sensation of the whole person to the comfortable side for a plurality of persons in a space to be air-conditioned.

The air conditioner of the invention comprises: an air temperature detection unit that detects an air temperature of the air conditioning target space; a human body detection unit that detects a human body in the air conditioning target space; an estimation unit that estimates a thermal sensation of the person detected by the human body detection unit; and a control unit that corrects the value of the air temperature or the set temperature based on the thermal sensation estimated by the estimation unit for all the detected persons, and controls the refrigeration cycle using the corrected value.

According to the present invention, when a plurality of persons in the space to be air-conditioned are detected, the thermal sensations of all the detected persons are estimated, the air temperature or the set temperature is corrected based on the thermal sensations of all the detected persons, and the refrigeration cycle is controlled using the corrected value. Therefore, the detected thermal sensation of all the persons can be brought close to the comfortable side.

Drawings

Fig. 1 is a diagram showing a configuration example of an air conditioner according to embodiment 1 of the present invention.

Fig. 2 is a refrigerant circuit diagram of the air conditioner shown in fig. 1.

Fig. 3 is a functional block diagram showing one configuration example of the control unit shown in fig. 2.

Fig. 4 is a diagram for explaining a relationship between the position of a person in a room and the thermal sensation.

Fig. 5 is a flowchart showing the operation procedure of the air conditioner shown in fig. 1.

Fig. 6 is a table for evaluating a general thermal sensation index PMV.

Fig. 7 is an example of a graph showing the thermal sensation estimated by the estimating unit shown in fig. 3.

Fig. 8 is a table showing an example of a case where the thermal sensation estimated by the estimating unit shown in fig. 3 is applied to the evaluation table.

Fig. 9 is an evaluation table showing transition when the control of step S106 shown in fig. 5 is executed for the thermal sensation shown in fig. 8.

Fig. 10 is a table showing another example in which the thermal sensation estimated by the estimating unit shown in fig. 3 is applied to the evaluation table.

Fig. 11 is an evaluation table showing transition when the control of step S106 shown in fig. 5 is executed for the thermal sensation shown in fig. 10.

Detailed Description