JPH052255B2 - - Google Patents
Info
- Publication number
- JPH052255B2 JPH052255B2 JP62020135A JP2013587A JPH052255B2 JP H052255 B2 JPH052255 B2 JP H052255B2 JP 62020135 A JP62020135 A JP 62020135A JP 2013587 A JP2013587 A JP 2013587A JP H052255 B2 JPH052255 B2 JP H052255B2
- Authority
- JP
- Japan
- Prior art keywords
- radiant
- radiant heat
- heat
- temperature
- absorbing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 19
- 239000003973 paint Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003595 spectral effect Effects 0.000 claims description 14
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、空気調和装置における室内ユニツト
などに設けられ、壁などの輻射温度を非接触で検
出する輻射温度検出器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a radiant temperature detector that is installed in an indoor unit of an air conditioner and detects the radiant temperature of a wall or the like in a non-contact manner.
（従来の技術）
一般に、例えば空気調和装置において、室内に
設けられる室内ユニツトには、室内の空気温度を
検出する空気温度検出器と共に、壁などの輻射温
度を検出する輻射温度検出器が設けられ、これら
両検出信号に基づいて室内温度を設定温度に調整
するようにしている。そして、上記空気調和装置
における輻射温度検出器には安価に作製できる簡
易型が適用されており、この簡易型輻射温度検出
器には特開昭61−149751号公報に開示されている
ものがある。(Prior Art) Generally, in an air conditioner, for example, an indoor unit installed indoors is equipped with an air temperature detector that detects the indoor air temperature and a radiant temperature detector that detects the radiant temperature of walls, etc. Based on these two detection signals, the indoor temperature is adjusted to the set temperature. A simple type of radiant temperature detector that can be manufactured at low cost is used as the radiant temperature detector in the above-mentioned air conditioner, and this simple type of radiant temperature detector includes the one disclosed in Japanese Patent Application Laid-Open No. 149751/1983. .
この輻射温度検出器は、前面が開口するケース
の収納空間内に温度を検知する温度検知素子が該
収納空間のほぼ中央部に位置するように支持さ
れ、該ケースの前面開口が透明板で覆われる一
方、ケースの背面が断熱材で覆われて形成されて
いる。従つて、壁などの輻射熱は透明板を透過し
た後、収納空間を伝つて温度検知素子に至り、該
温度検知素子が輻射温度を検出している。 This radiant temperature sensor has a case whose front opening is open, and a temperature sensing element for detecting temperature is supported in a storage space located approximately in the center of the storage space, and the front opening of the case is covered with a transparent plate. On the other hand, the back of the case is covered with a heat insulating material. Therefore, after the radiant heat from the wall passes through the transparent plate, it travels through the storage space and reaches the temperature detecting element, and the temperature detecting element detects the radiant temperature.
（発明が解決しようとする問題点）
上述した輻射温度検出器において、温度検知素
子は収納空間の中央に単に支持されているのみで
あり、該検知素子の表面のみが輻射熱、つまり壁
などから出る熱線を受ける受熱面となるので、受
熱量が少なく、正確な輻射温度を検出できず、精
度の良い空調制御等が行えないという問題があつ
た。(Problems to be Solved by the Invention) In the above-mentioned radiant temperature sensor, the temperature sensing element is simply supported in the center of the storage space, and only the surface of the sensing element receives radiant heat, that is, from the wall etc. Since it serves as a heat receiving surface that receives hot rays, the amount of heat received is small, making it impossible to accurately detect the radiant temperature, making it impossible to perform accurate air conditioning control.
また、上記透明板で温度検知素子を覆つている
が、該透明板にはアクリル板のように可視光のみ
を透過し、赤外光を透過しないものがあり、この
アクリル板では赤外光に似た性質の熱線（輻射
熱）が透過しないことになり、輻射温度を検出で
きないという問題がある。 In addition, although the temperature sensing element is covered with the above-mentioned transparent plate, some transparent plates, such as acrylic plates, transmit only visible light and do not transmit infrared light. There is a problem in that heat rays (radiant heat) with similar properties do not pass through, making it impossible to detect the radiant temperature.
更に、収納空間内に温度検知素子を設けている
が、該収納空間内で自然対流が生じ、この対流に
よる熱移動が大きくなり、温度検知素子が真の輻
射温度を検知しないという欠点がある。 Further, although a temperature sensing element is provided within the storage space, there is a drawback that natural convection occurs within the storage space, and heat transfer due to this convection increases, so that the temperature sensing element does not detect the true radiant temperature.
本発明は斯かる点に鑑み、輻射熱吸収板で輻射
熱を受けるようにして多くの受熱量を確保する一
方、該輻射熱吸収板の前方に対流を生起しない厚
さの空気断熱層を介して赤外線の透過膜を張設す
ることにより、簡易な構造でもつて壁などの輻射
温度を正確に検出できるようにすることを目的と
するものである。 In view of these points, the present invention ensures a large amount of heat received by receiving radiant heat with a radiant heat absorbing plate, and at the same time absorbs infrared rays through an air insulation layer having a thickness that does not cause convection in front of the radiant heat absorbing plate. The purpose is to enable accurate detection of the radiant temperature of walls, etc. with a simple structure by providing a permeable membrane.
（問題点を解決するための手段）
上記目的を達成するために、本発明が講じた手
段は、第１図に示すように、前面が開放する収納
室５ｃを有し、断熱材よりなる断熱ケース５が形
成されている。そして、該断熱ケース５の収納室
５Ｃには背面が断熱ケース５で覆われた状態で輻
射熱を吸収する輻射熱吸収板３が張設されてい
る。更に、該輻射熱吸収板３の温度を検知する温
度検知素子２が設けられている。また、上記断熱
ケース５の収納室５ｃ前面には上記輻射熱吸収板
３に対して自然対流が生じない厚さの空気断熱層
９を介して張設され、輻射熱が透過する赤外線透
過性材よりなる輻射熱透過膜８が形成された構成
としている。(Means for Solving the Problems) In order to achieve the above object, the present invention has a storage chamber 5c with an open front, as shown in FIG. Case 5 is formed. A radiant heat absorbing plate 3 for absorbing radiant heat is provided in the storage chamber 5C of the heat insulating case 5 with its back surface covered by the heat insulating case 5. Further, a temperature detection element 2 for detecting the temperature of the radiant heat absorption plate 3 is provided. Further, the front surface of the storage chamber 5c of the heat insulating case 5 is provided with an air heat insulating layer 9 having a thickness that prevents natural convection from occurring with respect to the radiant heat absorbing plate 3, and is made of an infrared transparent material through which radiant heat passes. The structure is such that a radiant heat transmitting film 8 is formed.
（作用）
上記構成により、本発明では、床や壁などから
の輻射熱は、先ず輻射熱透過膜８を透過した後、
空気断熱層９を介して輻射熱吸収板３に入射す
る。そして、輻射熱は輻射熱吸収板３を伝わり、
温度検知素子２がこの輻射熱により輻射温度を検
知する。(Function) With the above configuration, in the present invention, radiant heat from the floor, wall, etc. first passes through the radiant heat permeable film 8, and then
The air enters the radiant heat absorption plate 3 via the air insulation layer 9. Then, the radiant heat is transmitted through the radiant heat absorption plate 3,
The temperature detection element 2 detects the radiant temperature using this radiant heat.
従つて、輻射熱は赤外線であるので、ポリエチ
レンやポリプロピレンなどの輻射熱透過膜８を確
実に透過して輻射熱吸収板３に吸収されることに
なる。しかも、この輻射熱透過膜８と輻射熱吸収
板３との間の空気断熱層９が自然対流を生起しな
い厚さとしているので、輻射熱吸収板３の前面と
外気とが空気の熱伝導だけで確実に熱遮断される
と同時に、輻射熱が確実に伝達することになる。
更に、輻射熱吸収板３がその前面にて輻射熱を受
けて温度検知素子２に伝導するので、受熱面が広
くなり、輻射温度を正確に検出することができ、
空調制御等を精度よく行うことができる。 Therefore, since the radiant heat is infrared rays, it reliably passes through the radiant heat transmitting film 8 made of polyethylene or polypropylene and is absorbed by the radiant heat absorbing plate 3. Moreover, since the air insulation layer 9 between the radiant heat transmitting membrane 8 and the radiant heat absorbing plate 3 has a thickness that does not cause natural convection, the front surface of the radiant heat absorbing plate 3 and the outside air can be reliably connected only by heat conduction of the air. At the same time as heat is cut off, radiant heat is reliably transmitted.
Furthermore, since the radiant heat absorption plate 3 receives radiant heat on its front surface and conducts it to the temperature detection element 2, the heat receiving surface becomes wider and the radiant temperature can be detected accurately.
Air conditioning control etc. can be performed with high precision.
（実施例）
以下、本発明の一実施例を図面に基づいて詳細
に説明する。(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図に示すように、１は空気調和装置などに
おける室内ユニツトに設けられる簡易型の輻射温
度検出器であつて、床や壁などからの輻射熱を温
度検知素子２によつて非接触で検出するものであ
る。 As shown in Fig. 1, 1 is a simple radiant temperature detector installed in an indoor unit such as an air conditioner, and detects radiant heat from the floor, wall, etc. in a non-contact manner using a temperature detection element 2. It is something.
該温度検知素子２は温度を検知する熱電対など
で構成されており、輻射熱吸収板３の中央部に埋
設され、温度検知素子２は前面から背面に亘つて
輻射熱吸収板３で覆われている。そして、該温度
検知素子２は全面で輻射熱吸収板３からの熱（壁
等の輻射熱）を受けるように成つている。該輻射
熱吸収板３は前面に積層形成されて輻射熱を吸収
する塗料層４を有し、この前面にて該塗料層４が
吸収した輻射熱を受けて上記温度検知素子２に伝
達するようにしている。 The temperature detection element 2 is composed of a thermocouple or the like that detects temperature, and is embedded in the center of the radiant heat absorption plate 3, and the temperature detection element 2 is covered with the radiant heat absorption plate 3 from the front to the back. . The temperature sensing element 2 is configured to receive heat from the radiant heat absorbing plate 3 (radiant heat from walls, etc.) over its entire surface. The radiant heat absorbing plate 3 has a paint layer 4 laminated on the front surface to absorb radiant heat, and receives the radiant heat absorbed by the paint layer 4 on the front surface and transmits it to the temperature sensing element 2. .
上記塗料層４は、第２図に示すように、人体の
皮膚や衣服の分光反射率、逆に言うなれば分光吸
収率に概略合致する分光吸収率を有する塗料、例
えば、四弗化エチレン樹脂（PTFE）等の弗素樹
脂と酸化チタン（TiO2）等の顔料とから形成さ
れている。そして、該塗料層４の輻射熱伝達率を
人体等の輻射熱伝達率に略合致させて人体に対す
る輻射温度を精度良く検知するようしている。す
なわち、皮膚や衣服の分光反射率は可視光及び近
赤外光領域で高く、赤外光領域で零に近くなるの
で、上記塗料層４がこの分光反射率に対応するよ
うにし、例えば肌色やクリーム色などとして実際
の人体等に近い分光輻射特性を得るようにしてい
る。仮に、上記塗料層４を黒色塗料とすると、可
視光及び近赤外光領域の反射率が零に近くなり、
太陽光などの高温熱源からの熱を実際の人体等以
上に吸収し、過大評価することになる。そこで、
上述の如く肌色等の塗料層４が施されている。 As shown in FIG. 2, the paint layer 4 is made of a paint having a spectral absorption coefficient that roughly matches the spectral reflectance of human skin or clothing, or conversely, the spectral absorption coefficient, such as tetrafluoroethylene resin. It is formed from a fluororesin such as (PTFE) and a pigment such as titanium oxide (TiO 2 ). The radiant heat transfer coefficient of the paint layer 4 is made to substantially match the radiant heat transfer coefficient of the human body, etc., so that the radiant temperature of the human body can be detected with high accuracy. That is, the spectral reflectance of skin and clothing is high in the visible light and near-infrared light regions, and is close to zero in the infrared light region, so the paint layer 4 is made to correspond to this spectral reflectance, and for example, the paint layer 4 is made to correspond to this spectral reflectance. It is designed to have spectral radiation characteristics similar to those of the actual human body, such as a cream color. If the paint layer 4 is made of black paint, the reflectance in the visible light and near-infrared light regions will be close to zero,
It absorbs more heat from high-temperature heat sources such as sunlight than the actual human body, resulting in an overestimation. Therefore,
As described above, a paint layer 4 of skin color or the like is applied.
上記輻射熱吸収板３は断熱ケース５に収納さ
れ、該ケース５は断熱材により所定厚さに形成さ
れており、後壁部５ａの周囲に側壁部５ｂが連設
されて断面Ｕ字状に形成され、内部が収納室５ｃ
に構成されている。該側壁部５ｂには上記輻射熱
吸収板３が側端にて連接されて張設され、該吸収
板３が後壁部５ａと所定間隔を存して平行支持さ
れ、吸収板３と後壁部５ａとの間が後方空気断熱
層６に成つている。そして、上記ケース５と後方
空気断熱層６とにより上記温度検知素子２を含む
輻射熱吸収板３の側方及び後方が外部熱より遮断
されている。尚、７は輻射熱吸収板３及びケース
５を貫通して導出された温度検知素子２のリード
線である。 The radiant heat absorption plate 3 is housed in a heat insulating case 5, which is made of a heat insulating material and has a predetermined thickness, and has a U-shaped cross section with a side wall 5b continuous around a rear wall 5a. The interior is a storage room 5c.
It is composed of The radiant heat absorption plate 3 is connected and stretched at the side end of the side wall portion 5b, and the absorption plate 3 is supported in parallel with the rear wall portion 5a at a predetermined distance, so that the absorption plate 3 and the rear wall portion 5a forms a rear air insulation layer 6. The case 5 and the rear air insulation layer 6 shield the sides and rear of the radiant heat absorbing plate 3 including the temperature sensing element 2 from external heat. Note that 7 is a lead wire of the temperature sensing element 2 that passes through the radiant heat absorption plate 3 and the case 5 and is led out.
また、上記輻射熱吸収板３の前方には所定間隔
を存して輻射熱透過膜８が断熱ケース５の収納室
５ｃの前面開口を覆つて張設され、該透過膜８と
塗料層４との間が前方空気断熱層９に構成されて
いる。上記輻射熱透過膜８は、ポリエチレンやポ
リプロピレン等の赤外線透過性の樹脂で薄膜に形
成されており、輻射熱を確実に透過して上記輻射
熱吸収板３に供給すると共に、該吸収板３と外気
とを遮断して風などの対流による熱が吸収板３に
伝達されないようにしている。上記輻射熱透過膜
８を例えば30μmの厚さのポリエチレンで形成す
ると、その分光透過率は第３図に示すようにな
り、波数が4000cm-1か500cm-1の赤外線をほぼ90
％透過し、熱線（赤外線）である輻射熱が確実に
透過して輻射熱吸収板３に伝わることになる。ま
た、上記輻射熱透過膜８を波長が６〜7μm以上の
赤外線のみを透過するカツトオンフイルタで形成
してもよく、例えば、シリコン基板で形成する
と、第４図に示すように、波長が6μm以上の赤外
線のみが80％前後透過することになり、輻射熱の
みが確実に輻射熱吸収板３に伝わることになる。 Further, a radiant heat permeable film 8 is stretched in front of the radiant heat absorbing plate 3 at a predetermined interval to cover the front opening of the storage chamber 5c of the heat insulating case 5, and between the permeable film 8 and the paint layer 4. is formed in the front air insulation layer 9. The radiant heat transmitting film 8 is formed of a thin film made of an infrared transmitting resin such as polyethylene or polypropylene, and reliably transmits radiant heat and supplies it to the radiant heat absorbing plate 3, and also connects the absorbing plate 3 with the outside air. This prevents heat due to convection such as wind from being transmitted to the absorption plate 3. When the radiant heat transmitting film 8 is formed of polyethylene with a thickness of 30 μm , for example , its spectral transmittance becomes as shown in FIG.
%, and the radiant heat in the form of heat rays (infrared rays) is reliably transmitted and transmitted to the radiant heat absorbing plate 3. Further, the radiant heat transmitting film 8 may be formed of a cut-on filter that transmits only infrared rays having a wavelength of 6 to 7 μm or more. For example, if it is formed of a silicon substrate, as shown in FIG. Only about 80% of the infrared rays will be transmitted, and only the radiant heat will be reliably transmitted to the radiant heat absorption plate 3.
一方、上記前方空気断熱層９は、輻射熱吸収板
３の前面と外部とを空気層でもつて断熱してお
り、その厚さは自然対流が生じない厚さに設定さ
れている。つまり、第５図に示すように、２枚の
平板を平行に設置した状態において、平板間の距
離を縦軸に、平板間の温度差を横軸にとり、温度
差に伴つて自然対流が生じる平板間の距離は実線
Ａのようになる。この実線Ａより平板間距離が大
きくなると、自然対流が生起してこの対流による
熱移動が大きくなる。そこで、本実施例における
前方空気断熱層９は厚さを厚くすると断熱効果は
大きくなるものの、実線Ａ以上に大きくすると、
断熱層９内で自然対流が生じて輻射熱以外に対流
熱移動が生じるので、５mm〜10mmとして上記吸収
板３に伝わる熱のうち多くが上記透過膜８を透過
した輻射熱となるように構成されている。 On the other hand, the front air heat insulating layer 9 insulates the front surface of the radiant heat absorbing plate 3 from the outside with an air layer, and its thickness is set to a thickness that does not cause natural convection. In other words, as shown in Figure 5, when two flat plates are installed in parallel, the vertical axis is the distance between the plates, and the horizontal axis is the temperature difference between the plates, and natural convection occurs due to the temperature difference. The distance between the plates is as shown by solid line A. When the distance between the plates becomes larger than this solid line A, natural convection occurs and heat transfer due to this convection increases. Therefore, if the thickness of the front air insulation layer 9 in this embodiment is increased, the insulation effect will be increased, but if it is made thicker than the solid line A,
Since natural convection occurs within the heat insulating layer 9 and convective heat transfer occurs in addition to radiant heat, the structure is such that most of the heat transmitted to the absorption plate 3 is 5 mm to 10 mm and becomes radiant heat transmitted through the permeable membrane 8. There is.
次に、この輻射温度検出器１の検出動作につい
て説明する。 Next, the detection operation of this radiation temperature detector 1 will be explained.
先ず、この輻射温度検出器１は空気調和装置の
室内ユニツトに設けられ、壁や床などより出た輻
射熱が熱線として輻射熱透過膜８に伝わることに
なる。そして、該透過膜８はポリエチレンやシリ
コン基板等で形成されているので、輻射熱が確実
に透過し、空気断熱層９を介して塗料層４に伝わ
ることになる。この塗料層４において、人体の皮
膚や衣服等とほぼ同様に輻射熱が吸収された後、
この輻射熱は輻射熱吸収板３に伝わることにな
る。そして、温度検知素子２はこの輻射熱吸収板
３より伝達される輻射熱により輻射温度を検知
し、この温度信号によつて室内ユニツトが制御さ
れることになる。 First, this radiant temperature detector 1 is installed in an indoor unit of an air conditioner, and radiant heat emitted from walls, floors, etc. is transmitted to the radiant heat transmission film 8 as heat rays. Since the permeable film 8 is made of polyethylene, a silicon substrate, etc., the radiant heat is reliably transmitted and transmitted to the paint layer 4 via the air insulation layer 9. After radiant heat is absorbed in this paint layer 4 in almost the same way as human skin and clothing,
This radiant heat will be transmitted to the radiant heat absorbing plate 3. The temperature detection element 2 detects the radiant temperature by the radiant heat transmitted from the radiant heat absorbing plate 3, and the indoor unit is controlled based on this temperature signal.
従つて、この輻射温度検出器１において、輻射
熱吸収板３の前面にて輻射熱を受け、この輻射熱
より温度検知素子２が輻射温度を検知するので、
輻射熱の受熱量が多く、正確な輻射温度が検知さ
れることになる。 Therefore, in this radiant temperature detector 1, the radiant heat is received on the front surface of the radiant heat absorption plate 3, and the temperature detection element 2 detects the radiant temperature from this radiant heat.
The amount of radiant heat received is large, and the radiant temperature can be detected accurately.
また、輻射熱吸収板３の前方は輻射熱透過膜８
で覆われているので、輻射熱が確実に透過して伝
わる他、送風等による外部の対流熱移動の影響が
確実に防止されることになる。更に、輻射熱吸収
板３の側部及び後方は断熱ケース５で覆われてい
るため、外部熱が吸収板３に伝達されることはな
く、しかも、前方空気断熱層９は自然対流が生じ
ない厚さに形成されているから、この対流によつ
て熱が吸収板３に伝わることがなく、温度検知素
子２が輻射熱を正確に検出することになる。 In addition, in front of the radiant heat absorbing plate 3, a radiant heat transmitting film 8 is provided.
, which ensures that radiant heat passes through and is transmitted, and also reliably prevents the influence of external convective heat transfer caused by air blowing, etc. Furthermore, since the sides and rear of the radiant heat absorbing plate 3 are covered with a heat insulating case 5, external heat is not transferred to the absorbing plate 3, and the front air heat insulating layer 9 is thick enough to prevent natural convection. Since it is formed in a straight line, heat will not be transmitted to the absorption plate 3 due to this convection, and the temperature detection element 2 will accurately detect the radiant heat.
第６図は、輻射温度検出器１の性能を調べるた
めの実線結果図である。先ず、横軸にはａ，ｂ，
ｃ，ｄの４つの異なる輻射温度検出器１をとり、
ａは輻射熱透過膜８を設けないもの、ｂは前方空
気断熱層９を２mmとしたもの、ｃは前方空気断熱
層９を５mmとしたもの、ｄは断熱ケース５を２倍
の厚さにしたものである。一方、縦軸には性能値
CSをとり、この性能値CSは次式で与えられ、
CS＝（Ta−Ts）／（Ta−Tr） …
Ta；空気温度
Ts；測定輻射温度
Tr；真の輻射温度
この性能値CSが１に近いほど輻射熱検出器１
の測定値が真の輻射温度に近いことになる。尚、
図中の○印は風速が0.1m／ｓ、ロ印は風速が
1.5m／ｓの場合である。 FIG. 6 is a solid line result diagram for examining the performance of the radiant temperature detector 1. First, the horizontal axis shows a, b,
Take four different radiant temperature detectors 1, c and d,
A is a case in which the radiant heat permeable membrane 8 is not provided, b is a case in which the front air insulation layer 9 is 2 mm, c is a case in which the front air insulation layer 9 is 5 mm, and d is a case in which the insulation case 5 is twice as thick. It is something. On the other hand, the vertical axis shows the performance value.
CS is taken, and this performance value CS is given by the following formula: CS = (Ta-Ts)/(Ta-Tr) ... Ta: Air temperature Ts: Measured radiant temperature Tr: True radiant temperature This performance value CS is 1 The closer it is to the radiant heat detector 1
This means that the measured value is close to the true radiant temperature. still,
The circle mark in the figure indicates the wind speed of 0.1m/s, and the circle mark indicates the wind speed.
This is the case of 1.5m/s.
この第６図の結果より輻射熱透過膜８を設けな
いと（ａ参照）、送風等の影響を大きく受けるこ
とが明らかとなる。また、前方空気断熱層９を第
５図実線Ａを越えないようにして厚くすると（ｂ
及びｃ参照）、精度の良い輻射温度を検出するこ
とになる。更にまた、ケース５を厚くすることに
より（ｄ参照）外部熱が確実に遮断されることが
理解できることになる。これらの実験結果に基づ
いて輻射温度検出器１は外形寸法等を考慮し、空
気断熱層９の厚さ等を設定して構成されることに
なる。 From the results shown in FIG. 6, it is clear that if the radiant heat transmitting film 8 is not provided (see a), the influence of air blowing etc. will be large. Also, if the front air insulation layer 9 is thickened so as not to exceed the solid line A in Figure 5 (b
and c), the radiant temperature can be detected with high accuracy. Furthermore, it can be understood that by making the case 5 thicker (see d), external heat is reliably blocked. Based on these experimental results, the radiant temperature detector 1 is constructed by taking into account the external dimensions and setting the thickness of the air heat insulating layer 9.
尚、本実施例の輻射温度検出器１は空気調和装
置に設けた場合について説明したが、その他輻射
温度を利用して制御する装置に適用してもよいこ
とは勿論である。 Although the radiant temperature detector 1 of this embodiment has been described for the case where it is installed in an air conditioner, it goes without saying that it may be applied to other devices that control using radiant temperature.
また、輻射熱吸収板３と輻射熱透過膜８とは平
行に位置する必要はなく、しかも、平板状の他に
湾曲してもよい。 Further, the radiant heat absorbing plate 3 and the radiant heat transmitting film 8 do not need to be located in parallel, and may be curved instead of being flat.
また、後方空気断熱層６は必ずしも形成する必
要はない。 Further, the rear air insulation layer 6 does not necessarily need to be formed.
（発明の効果）
以上のように、本発明の輻射温度検出器によれ
ば、温度検知素子が輻射熱吸収板の温度を検知す
るようにし、該輻射熱吸収板の前方を空気断熱層
を介して輻射熱透過膜で覆うようにしたために、
輻射熱吸収板がその前面にて輻射熱を受けて温度
検知素子が輻射温度を検知するので、輻射熱の受
熱面積が広くなり、受熱量が多く、正確な輻射温
度を検出することになるから、空調制御等を精度
よく行うことができる。(Effects of the Invention) As described above, according to the radiant temperature detector of the present invention, the temperature detection element detects the temperature of the radiant heat absorption plate, and the radiant heat is emitted from the front of the radiant heat absorption plate through the air insulation layer. Because it is covered with a permeable membrane,
The radiant heat absorbing plate receives radiant heat in front of it, and the temperature detection element detects the radiant temperature, so the radiant heat receiving area is widened, the amount of heat received is large, and the radiant temperature is accurately detected, making it possible to control air conditioning. etc. can be performed with high accuracy.
また、輻射熱透過膜を赤外線透過性材で形成す
るので、輻射熱が確実に透過して吸収板に伝わる
ことになる。更に、空気断熱層を５mm〜10mm等の
所定厚さに形成するので、自然対流が生じること
がなく、対流による熱移動を少なくすることがで
き、輻射温度の精度を向上させることができる。 Furthermore, since the radiant heat transmitting film is formed of an infrared transmitting material, the radiant heat is reliably transmitted and transmitted to the absorption plate. Furthermore, since the air heat insulating layer is formed to a predetermined thickness of 5 mm to 10 mm, natural convection does not occur, heat transfer due to convection can be reduced, and the accuracy of radiant temperature can be improved.
図面は本発明の一実施例を示し、第１図は輻射
温度検出器の縦断面図である。第２図は人体等の
分光輻射特性を示す図、第３図は輻射熱透過膜の
分光透過率を示す図、第４図は他の輻射熱透過膜
の分光透過率を示す図、第５図は空気断熱層の対
流限界値を示す図、第６図は異なる輻射温度検出
器の性能実験の結果図である。
１…輻射温度検出器、２…温度検知素子、３…
輻射熱吸収板、４…塗料層、５…断熱ケース、５
ｃ…収納室、８…輻射熱透過膜、９…前方空気断
熱層。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a radiant temperature detector. Figure 2 is a diagram showing the spectral radiation characteristics of the human body, etc., Figure 3 is a diagram showing the spectral transmittance of a radiant heat transmitting film, Figure 4 is a diagram showing the spectral transmittance of other radiant heat transmitting films, and Figure 5 is a diagram showing the spectral transmittance of other radiant heat transmitting films. FIG. 6, which is a diagram showing the convection limit value of the air insulation layer, is a diagram showing the results of performance experiments of different radiant temperature detectors. 1...Radiation temperature detector, 2...Temperature detection element, 3...
Radiant heat absorption plate, 4...paint layer, 5...insulation case, 5
c...Storage chamber, 8...Radiant heat permeable membrane, 9...Front air insulation layer.
Claims (1)
なる断熱ケース５と、該断熱ケース５の収納室５
ｃ内に背面が断熱ケース５で覆われた状態で張設
されて輻射熱を吸収する輻射熱吸収板３と、該輻
射熱吸収板３の温度を検知する温度検知素子２
と、上記断熱ケース５の収納室５ｃ前面に上記輻
射熱吸収板３に対して自然対流が生じない厚さの
空気断熱層９を介して張設され、輻射熱が透過す
る赤外線透過性材よりなる輻射熱透過膜８とを備
えて構成されていることを特徴とする輻射温度検
出器。 ２ 前記輻射熱吸収板３は、前面に輻射熱を吸収
する塗料層４を有し、該塗料層４はは人体、衣服
等の分光吸収率と略一致する分光特性を有する塗
料で形成されていることを特徴とする特許請求の
範囲第１項記載の輻射温度検出器。 ３ 前記空気断熱層９は、厚さが５〜10mmに形成
されていることを特徴とする特許請求の範囲第１
項記載の輻射温度検出器。[Claims] 1. A heat insulating case 5 made of a heat insulating material and having a storage chamber 5c with an open front, and a storage chamber 5 of the heat insulating case 5.
a radiant heat absorbing plate 3 that absorbs radiant heat with its back surface covered with a heat insulating case 5, and a temperature detection element 2 that detects the temperature of the radiant heat absorbing plate 3.
A radiant heat filter is provided on the front surface of the storage chamber 5c of the heat insulating case 5 through an air heat insulating layer 9 having a thickness such that natural convection does not occur with respect to the radiant heat absorbing plate 3, and is made of an infrared transparent material through which the radiant heat passes. A radiant temperature detector characterized in that it is configured to include a transmission film 8. 2. The radiant heat absorbing plate 3 has a paint layer 4 on the front surface that absorbs radiant heat, and the paint layer 4 is formed of a paint having spectral characteristics that substantially match the spectral absorption rate of the human body, clothing, etc. A radiant temperature detector according to claim 1, characterized in that: 3. Claim 1, wherein the air insulation layer 9 is formed to have a thickness of 5 to 10 mm.
Radiant temperature detector described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62020135A JPS63187129A (en) | 1987-01-30 | 1987-01-30 | Radiation temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62020135A JPS63187129A (en) | 1987-01-30 | 1987-01-30 | Radiation temperature detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63187129A JPS63187129A (en) | 1988-08-02 |
| JPH052255B2 true JPH052255B2 (en) | 1993-01-12 |
Family
ID=12018691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62020135A Granted JPS63187129A (en) | 1987-01-30 | 1987-01-30 | Radiation temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63187129A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627835A (en) * | 2014-10-29 | 2016-06-01 | 北京航天长征飞行器研究所 | Device for enhancing infrared radiation characteristic of space target |
-
1987
- 1987-01-30 JP JP62020135A patent/JPS63187129A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63187129A (en) | 1988-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6389444B2 (en) | Thermal radiation thermometer | |
| US7422365B2 (en) | Thermal imaging system and method | |
| US7815367B2 (en) | Multi-site infrared thermometer | |
| US9591971B2 (en) | Insertion detector for medical probe | |
| US5893833A (en) | Axillary infrared thermometer and cover therefor | |
| JP5491636B2 (en) | Apparatus and method for non-invasive measurement of body material | |
| US20040028116A1 (en) | Ear thermometer probe structure | |
| CN107851355A (en) | There is optical measurement chamber in alarm housing and be the scattered light smoke warner that the housing part locates minute surface on the inside of alarm cover | |
| JPH0789085B2 (en) | Radiation temperature measuring device | |
| JPS63187129A (en) | Radiation temperature detector | |
| JP2004151038A (en) | Stoving type infrared moisture meter | |
| JP3813057B2 (en) | Temperature detector and air conditioner using the same | |
| JPH0778458B2 (en) | Radiation temperature detector | |
| JP2615599B2 (en) | Air conditioner | |
| JP3885323B2 (en) | Radiation thermometer | |
| JP2993106B2 (en) | Non-contact oral thermometer | |
| JPH1151773A (en) | Thermal object measuring device and its temperature correction method | |
| JPH0275916A (en) | Infrared ray detector | |
| JP2001033385A (en) | Method for discriminating surface of coated film of glass | |
| JPH0288929A (en) | Infrared optical device | |
| JP7430956B1 (en) | Radiant heat measuring device and its radiant heat measuring method | |
| JP3149218B2 (en) | Temperature measuring endoscope | |
| JPH04353728A (en) | Radiant-heat temperature sensor | |
| JP2722203B2 (en) | Infrared detector | |
| JPH0694521A (en) | Pyroelectric sensor and air-conditioning controlling method using the same |