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An air conditioner

A technology for air conditioners and cabinets, applied to mechanical equipment, space heating and ventilation, heating methods, etc., can solve problems such as increased development costs, user anxiety, and inability to confirm, so as to improve energy saving or satisfaction, and achieve comfort , the effect of maintaining comfort

Active Publication Date: 2010-05-26
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, there is no mention of the activity levels of the people in the room
[0016] In Patent Document 4, it is necessary to set the area characteristic for each detection area in advance, and this function cannot be confirmed in the test operation before and after installation, causing anxiety to the user
In addition, it is necessary to set the presence / absence judgment condition in the area characteristic, so the development burden of the control software increases, and the development cost increases
Also, there is no mention of the activity levels of the people in the room

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] First, use Figure 1 ~ Figure 4 The overall structure of the air conditioner will be described. figure 1 It is a block diagram of the air conditioner of an Example. figure 2 It is a sectional view of the indoor unit of the air conditioner. image 3 It is a sectional view of the outdoor unit of the air conditioner. Figure 4 It is a refrigerant circuit diagram of the air conditioner, (a) is a diagram showing the flow direction of the refrigerant during the cooling and dehumidification operation, and (b) is a diagram showing the flow direction of the refrigerant during the heating operation.

[0101] The connecting pipe 8 for the air conditioner connects the indoor unit 2 and the outdoor unit 6 to perform air conditioning in the room. In the indoor unit 2, an indoor heat exchanger 33 is arranged in the central part of the chassis base 21, and an indoor ventilation fan 311 of a cross-flow fan type with a length approximately equal to the width of the heat exchanger 33 ...

Embodiment 2

[0298] Next, use Figure 48 ~ Figure 50 Example 2 in which the number of infrared sensors is increased will be described. Figure 48 It is a detection range diagram of the infrared detection device of Example 2. Figure 49 It is the detection area division diagram of the detection device. Figure 50 It is the estimation map of the existence area of ​​the detection device, (a) is a schematic diagram of area division, (b) is the existence area when the difference between a and b is large, and (c) is the existence area when the difference between a and b is small .

[0299] Example 2 as Figure 48 As shown, the number of infrared sensors 410 in Embodiment 1 is increased from 2 to 3, and arranged as adjacent left person detection sensor 140a and middle person detection sensor 140b and middle person detection sensor 140b and right person detection sensor 140c The detection ranges of the left person detection sensor 140a and the right person detection sensor 140c at both ends do n...

Embodiment 3

[0309] Next, use Figure 51 ~ Figure 53 Example 3 in which the arrangement of three infrared sensors is changed will be described. Figure 51 It is a schematic diagram of the detection area of ​​the infrared detection device of Example 3. Figure 52 It is the detection area division diagram of the detection device. Figure 53 It is the estimation map of the existence area of ​​the detection device, (a) is a schematic diagram of area division, (b) is the existence area when the difference between a and b is large, and (c) is the existence area when the difference between a and b is small .

[0310] Example 3 as Figure 51 As shown, the arrangement of the human detection sensors 140a-c in Embodiment 2 is changed, and the detection ranges of the adjacent left human detection sensor 140a and middle human detection sensor 140b and the middle human detection sensor 140b and right human detection sensor 140c are arranged. Some overlap, and the detection ranges of the left person ...

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Abstract

The invention discloses an air conditioner which comprises a machine box with an air inlet port and an air outlet port, a heat exchanger arranged inside the machine box, a fan that intakes air from the air inlet port into a room and the exhaust air from the air outlet port after being processed by the heat exchanger, a right and left wind direction board and an up and down wind direction board on an air outlet duct of the fan, and an infrared detection apparatus with an infrared sensor that divides room into a plurality of areas and estimates the existence of personnel in the room, a plurality of prescribed temporary judgment spaces that set in a judgment space that judges the existence of personnel and the existence area; judge the existence of personnel and the existence area; in the situation that output value of the infrared sensor in the temporary judgment space doesn't exceed stipulated threshold value, judges the existence of personnel and the existence area finally based on result of the prescribed plurality of temporary judgment; in the situation that output value of the infrared sensor in the temporary judgment space exceeds stipulated threshold value, take the result judged by the temporary judgment space as final judgment.

Description

technical field [0001] The present invention relates to an air conditioner equipped with an infrared sensor, and particularly relates to improvement of a human detection function. Background technique [0002] The air conditioner circulates indoor air through a heat exchanger, adjusts it by heating, cooling, dehumidifying functions, etc., and blows it into the room to air-condition the room. At this time, if the adjusted airflow can be delivered to the position of the indoor personnel, the indoor personnel do not need to perform tedious operations one by one, which improves the satisfaction of the indoor personnel and only makes the surroundings of the indoor personnel comfortable, so it can save air conditioning machine energy. [0003] As one of them, considering the method of installing an infrared sensor on the air conditioner to detect the position of the people in the room, and increasing or decreasing the wind direction, air volume, air-conditioning and heating capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02F24F13/10
CPCF24F11/30F24F11/62F24F11/79F24F2120/12F24F2120/14
Inventor 松岛秀行能登谷义明上田贵郎
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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