JP2511680Y2 - Constant temperature and humidity - Google Patents
Constant temperature and humidityInfo
- Publication number
- JP2511680Y2 JP2511680Y2 JP1990082004U JP8200490U JP2511680Y2 JP 2511680 Y2 JP2511680 Y2 JP 2511680Y2 JP 1990082004 U JP1990082004 U JP 1990082004U JP 8200490 U JP8200490 U JP 8200490U JP 2511680 Y2 JP2511680 Y2 JP 2511680Y2
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- Prior art keywords
- temperature
- tank
- humidity
- saturated air
- constant
- Prior art date
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、各種電気、電子機器、その部品、各種材料
等につき、それらを予め定めた温湿度雰囲気にさらし
て、温度および湿度の影響を調べたり、スクリーニング
等を行うための恒温恒湿器に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention exposes various electric and electronic devices, their parts, various materials, etc. to a predetermined temperature and humidity atmosphere to prevent the influence of temperature and humidity. The present invention relates to a thermo-hygrostat for investigation and screening.
この種の恒温恒湿器には種々のタイプのものがある。
その一つに、二温度法により所定の温湿度雰囲気を得る
もの、さらに詳言すると、恒温恒湿槽内温度を所定温度
に制御しつつ該槽内へ飽和空気発生槽から所定温度の飽
和空気を導入して所定の温湿度雰囲気を得るものが知ら
れている。There are various types of thermo-hygrostats of this type.
One of them is to obtain a predetermined temperature and humidity atmosphere by the two-temperature method, and more specifically, to control the temperature inside the constant temperature and humidity chamber to a predetermined temperature, and to the inside of the saturated air generating tank, saturated air of a predetermined temperature. It is known to introduce the above to obtain a predetermined temperature and humidity atmosphere.
しかしながら、従来、この種の恒温恒湿器では、温
度、湿度を変更するために、恒温恒湿槽内温度および飽
和空気温度を変更するような場合、例えば第２図に示す
ように、恒温恒湿槽内温度Ｔが目標値T0へ向け変化し、
Ｐ点において飽和空気温度ｔ以下になっても、飽和空気
の供給を停止していなかったため、このような事態が生
じると、恒温恒湿槽内に結露が発生し、精度の高い雰囲
気が得られなかった。However, conventionally, in the thermo-hygrostat of this type, when the temperature inside the thermo-hygrostat and the saturated air temperature are changed in order to change the temperature and the humidity, for example, as shown in FIG. The temperature T in the wet tank changes toward the target value T 0 ,
Since the supply of the saturated air was not stopped even at the saturated air temperature t or lower at the point P, when such a situation occurs, dew condensation occurs in the constant temperature and humidity chamber, and a highly accurate atmosphere can be obtained. There wasn't.
この問題を解決する方法として、飽和空気温度ｔを先
ず目標値t0へ向け制御し、温度ｔが温度T0以下になった
あとで、恒温恒湿槽内温度Ｔを目標値T0へ向け制御する
ことが考えられる。しかし、これでは温湿度の変更に時
間がかかりすぎるという問題がある。As a method of solving this problem, first, the saturated air temperature t is controlled toward the target value t 0, and after the temperature t becomes equal to or lower than the temperature T 0 , the temperature T inside the constant temperature and humidity chamber is controlled toward the target value T 0 . It is possible to control. However, this has a problem that it takes too long to change the temperature and humidity.
このような問題は、温度Ｔおよびｔを上昇させる場合
において、温度ｔの上昇速度が温度Ｔの上昇速度よりも
早い場合にも生じる。Such a problem also occurs when the temperatures T and t are increased and the rate of increase of the temperature t is faster than the rate of increase of the temperature T.
そこで本考案は、前記二温度法による恒温恒湿器であ
って、結露発生の恐れがなく、また、結露を発生させる
ことなく、従来に比べ速やかに温湿度を変更できるもの
を提供することを目的とする。Therefore, the present invention provides a thermo-hygrostat according to the two-temperature method, in which there is no risk of dew condensation, and the temperature and humidity can be changed more quickly than before without dew condensation. To aim.
本考案は前記目的に従い、 第１温度検出手段及び第１温度制御操作端を有する恒
温恒湿槽と、 第２温度検出手段及び第２温度制御操作端を有し、供
給されてくる空気を飽和空気にして送り出す飽和空気発
生槽と、 前記飽和空気発生槽から飽和空気を前記恒温恒湿槽へ
供給するパイプと、 前記パイプの途中に設けられた弁と、 前記第１温度検出手段で検出される前記恒温恒湿槽内
温度が前記第２温度検出手段で検出される前記飽和空気
発生槽内温度以下のときは、前記弁を全閉とする制御部
とを備えたことを特徴とする恒温恒湿器を提供するもの
である。According to the above object, the present invention has a constant temperature and humidity chamber having a first temperature detecting means and a first temperature control operating end, and a second temperature detecting means and a second temperature control operating end to saturate the supplied air. A saturated air generating tank that sends out as air, a pipe that supplies saturated air from the saturated air generating tank to the constant temperature and constant humidity tank, a valve provided in the middle of the pipe, and the first temperature detecting means A constant temperature and humidity chamber internal temperature is equal to or lower than the saturated air generation chamber internal temperature detected by the second temperature detecting means, a constant temperature control unit for fully closing the valve. It provides a constant humidity chamber.
本考案恒温恒湿器によると、正常な運転においては、
二温度法に従い、前記第１温度制御操作端により恒温恒
湿槽内温度が所定の温湿度に応じた槽内目標温度に向け
制御される一方、前記第２温度制御操作端により、前記
飽和空気発生槽内温度、換言すれば前記恒温恒湿槽内へ
導入される飽和空気温度が前記所定の温湿度に応じた、
且つ、前記槽内目標温度より低い飽和空気目標温度に向
け制御され、かくして恒温恒湿槽内に所定の温湿度雰囲
気が得られる。According to the constant temperature and humidity chamber of the present invention, in normal operation,
According to the dual temperature method, the temperature inside the constant temperature and humidity chamber is controlled toward the target temperature inside the chamber according to the predetermined temperature and humidity by the first temperature control operating end, while the saturated air is controlled by the second temperature control operating end. The temperature in the generation tank, in other words, the saturated air temperature introduced into the constant temperature and constant humidity tank corresponds to the predetermined temperature and humidity,
Further, the temperature is controlled toward the saturated air target temperature lower than the in-tank target temperature, and thus a predetermined temperature and humidity atmosphere is obtained in the constant temperature and humidity chamber.
しかし、何らかの事情により、第１温度検出手段で検
出される恒温恒湿槽内温度が第２温度検出手段で検出さ
れる飽和空気発生槽内温度以下なると結露が発生してく
るので、恒温恒湿槽内温度が飽和空気発生槽内温度以下
のときは、前記弁が全閉され、恒温恒湿槽への飽和空気
の供給が停止される。恒温恒湿槽内温度が飽和空気温度
より再び高くなると、恒温恒湿槽への飽和空気の供給が
再開される。かくして恒温恒湿槽内での結露発生が十分
抑制され、それだけ精度の高い温湿度雰囲気が得られ
る。However, if for some reason the temperature inside the constant temperature and humidity chamber detected by the first temperature detection unit becomes lower than the temperature inside the saturated air generation chamber detected by the second temperature detection unit, dew condensation will occur. When the temperature inside the tank is equal to or lower than the temperature inside the saturated air generation tank, the valve is fully closed and the supply of saturated air to the constant temperature and constant humidity tank is stopped. When the temperature inside the constant temperature and humidity chamber becomes higher than the saturated air temperature again, the supply of the saturated air to the constant temperature and humidity chamber is restarted. Thus, the occurrence of dew condensation in the constant temperature and humidity chamber is sufficiently suppressed, and a highly accurate temperature and humidity atmosphere can be obtained.
また、温湿度変更にあたり、恒温恒湿槽内温度および
飽和空気温度を変更する場合、前記弁の開閉により結露
の発生を見ることなく、速やかに目標値へ向け前記両温
度を変更することができる。Further, in changing the temperature and humidity, when changing the temperature inside the constant temperature and humidity chamber and the saturated air temperature, it is possible to quickly change the both temperatures toward the target value without observing the occurrence of dew condensation by opening and closing the valve. .
以下、本考案の実施例を第１図を参照して説明する。 An embodiment of the present invention will be described below with reference to FIG.
この恒温恒湿器は、恒温恒湿槽１と飽和空気発生槽２
を備えている。This thermo-hygrostat consists of a thermo-hygrostat 1 and a saturated air generator 2
It has.
恒温恒湿槽１は、断熱扉11を有し、断熱壁12に囲まれ
ており、加熱器およひ冷却器を含む温度制御操作端13を
備えている。The constant temperature and humidity chamber 1 has a heat insulating door 11, is surrounded by a heat insulating wall 12, and has a temperature control operation end 13 including a heater and a cooler.
一方、飽和空気発生槽２は、密閉されており、内部に
水または氷Ｗを収容できるように構成されており、水ま
たは氷Ｗの温度を制御する加熱器および冷却器を含む温
度制御操作端21を付設してある。On the other hand, the saturated air generation tank 2 is hermetically sealed and configured to accommodate water or ice W therein, and a temperature control operation end including a heater and a cooler for controlling the temperature of the water or ice W. 21 is attached.
また、この発生槽２は、途中に常開電磁弁22を有する
パイプ23にて槽１に連通しているとともに、乾燥空気発
生槽３からパイプ31を介して乾燥空気を供給されるよう
になっている。Further, this generating tank 2 is connected to the tank 1 by a pipe 23 having a normally open electromagnetic valve 22 in the middle thereof, and dry air is supplied from the dry air generating tank 3 through a pipe 31. ing.
槽１の温度制御操作端13は温度調節器４からの指示に
基づいて動作し、槽２の温度制御操作端21は温度調節器
５からの指示に基づいて動作する。The temperature control operating end 13 of the tank 1 operates based on an instruction from the temperature controller 4, and the temperature control operating end 21 of the tank 2 operates based on an instruction from the temperature controller 5.
温度調節器４には槽１内に設置した温度検出端14およ
び温度設定兼弁制御部６も接続されている。温度調節器
５には槽２内の水または氷収容部分に設置した温度検出
端24および前記温度設定兼弁制御部６も接続されてい
る。温度検出端24は実質上飽和空気温度を検出すること
になる。The temperature controller 4 is also connected to a temperature detecting end 14 installed in the tank 1 and a temperature setting / valve control unit 6. The temperature controller 5 is also connected to a temperature detection end 24 installed in the water or ice storage portion in the tank 2 and the temperature setting / valve control unit 6. The temperature detection end 24 substantially detects the saturated air temperature.
温度設定兼弁制御部６は、槽１内の目標温度および槽
２内の目標温度を設定できるように構成されているとと
もに、槽１内の温度検出端14による検出温度Ｔと槽２内
の温度検出端24による検出温度ｔを比較し、検出温度Ｔ
が検出温度ｔ以下になると、電磁弁22を閉じるように構
成されている。The temperature setting / valve control unit 6 is configured to set the target temperature in the tank 1 and the target temperature in the tank 2, and detects the temperature T detected by the temperature detecting end 14 in the tank 1 and the temperature in the tank 2. The detected temperature t by the temperature detecting end 24 is compared,
When the temperature becomes equal to or lower than the detected temperature t, the solenoid valve 22 is closed.
以上説明した恒温恒湿器によると、槽１内の温度は、
温度設定兼弁制御部６において入力した目標温度に向け
制御される。詳言すると、調節器４が槽１内の温度検出
端14において検出される検出温度Ｔを見つつ、温度制御
操作端13の動作を制御することにより、目標温度に向け
制御される。According to the thermo-hygrostat described above, the temperature in the tank 1 is
The temperature setting / valve control unit 6 is controlled toward the target temperature input. More specifically, the controller 4 controls toward the target temperature by controlling the operation of the temperature control operation end 13 while watching the detected temperature T detected at the temperature detection end 14 in the tank 1.
一方、槽２内の温度は、温度設定兼弁制御部６におい
て入力した目標温度に向け制御される。詳言すると、調
節器５が槽２内温度検出端24による検出温度ｔを見つ
つ、温度制御操作端21の動作を制御することにより、目
標温度に向け制御される。On the other hand, the temperature in the tank 2 is controlled toward the target temperature input in the temperature setting / valve control unit 6. More specifically, the controller 5 controls the operation of the temperature control operation end 21 while observing the temperature t detected by the temperature detection end 24 in the bath 2, so that the temperature is controlled toward the target temperature.
一方、温度検出端14および24で検出された温度は、調
節器４、５を介して制御部６へ入力され、制御部６では
これら両温度を比較し、槽１内の検出温度Ｔが槽２内の
検出温度ｔ以下になると、電磁弁22を閉じ、飽和空気発
生槽２から恒温恒湿槽１への飽和空気供給を停止する。
この停止により、恒温恒湿槽１内の結露発生は防止さ
れ、槽１内には精度の高い所望の温度湿度雰囲気が得ら
れる。温度Ｔが温度ｔよりも高くなると、弁22は再び開
かれる。On the other hand, the temperatures detected by the temperature detecting ends 14 and 24 are input to the control unit 6 via the controllers 4 and 5, and the control unit 6 compares these temperatures and the detected temperature T in the tank 1 is calculated as follows. When the temperature becomes equal to or lower than the detected temperature t in 2, the solenoid valve 22 is closed and the supply of saturated air from the saturated air generating tank 2 to the constant temperature and constant humidity tank 1 is stopped.
Due to this stop, dew condensation in the constant temperature and constant humidity tank 1 is prevented, and a highly accurate desired temperature and humidity atmosphere can be obtained in the tank 1. When the temperature T becomes higher than the temperature t, the valve 22 is opened again.
恒温恒湿槽１内における温湿度を変更するため、槽１
内温度および槽２内温度を上昇させる場合において、槽
２内の温度上昇が槽１内の温度上昇より速いために槽１
内温度が槽２内温度（即ち飽和空気の温度）以下になる
と、直ちに弁制御部６は電磁弁22を閉じて、飽和空気の
供給を停止する。該飽和空気供給停止後、再び槽１内温
度が槽２内温度よりも高くなると、再び弁制御部６は電
磁弁22を開き、飽和空気の供給を開始させる。In order to change the temperature and humidity inside the constant temperature and humidity chamber 1,
When the internal temperature and the internal temperature of the tank 2 are increased, the internal temperature of the internal tank 2 rises faster than the internal temperature of the internal tank 1.
As soon as the internal temperature becomes equal to or lower than the internal temperature of the tank 2 (that is, the temperature of saturated air), the valve control unit 6 closes the electromagnetic valve 22 and stops the supply of saturated air. After the supply of the saturated air is stopped, when the temperature in the tank 1 becomes higher than the temperature in the tank 2, the valve control unit 6 opens the electromagnetic valve 22 again to start the supply of the saturated air.
このように電磁弁22の開閉により、槽１内における結
露発生を防止しつつ、速やかに槽１内温度および槽２内
温度（飽和空気温度）を目標温度へ向け制御することが
でき、それだけ槽１内の温湿度を速やかに変更すること
ができる。By opening and closing the solenoid valve 22 in this way, it is possible to quickly control the temperature inside the tank 1 and the temperature inside the tank 2 (saturated air temperature) toward the target temperature while preventing the occurrence of dew condensation inside the tank 1, and only that much. The temperature and humidity in 1 can be changed quickly.
一方、槽１内の温湿度を変更するために、槽１内温度
および槽２内温度を下降させる場合において、槽１内温
度の降下速度が速く、槽１内温度が槽２内温度以下にな
ると、そのときも制御部６は電磁弁22を閉じ、槽１への
飽和空気供給を停止する。これによって槽１内における
結露発生は防止される。On the other hand, when the temperature inside the tank 1 and the temperature inside the tank 2 are lowered in order to change the temperature and humidity inside the tank 1, the rate of decrease of the temperature inside the tank 1 is high, and the temperature inside the tank 1 becomes equal to or lower than the temperature inside the tank 2. In that case, the control unit 6 also closes the electromagnetic valve 22 at that time and stops the supply of the saturated air to the tank 1. This prevents the occurrence of dew condensation in the tank 1.
飽和空気供給停止後、再び槽１内温度が槽２内温度よ
り高くなると、制御部６は再び電磁弁22を開き、飽和空
気の供給を開始させる。After the supply of the saturated air is stopped, when the temperature inside the tank 1 becomes higher than the temperature inside the tank 2, the controller 6 opens the solenoid valve 22 again to start the supply of the saturated air.
このようにして、槽１内に結露の発生を見ることな
く、速やかに槽１内温度および槽２内温度（飽和空気温
度）を目標温度に到達させることができ、それだけ槽１
内の温湿度の変更を速やかに行うことができる。In this way, the internal temperature of the tank 1 and the internal temperature of the tank 2 (saturated air temperature) can be quickly reached to the target temperature without observing the occurrence of dew condensation in the tank 1.
The temperature and humidity inside can be changed quickly.
なお、本考案は前記実施例に限定されるものではな
く、他にも種々の態様で実施することができる。It should be noted that the present invention is not limited to the above embodiment, and can be implemented in various modes other than the above.
前記実施例では、温度設定兼制御部６が設けられてお
り、ここで槽１内温度および槽２内温度を設定するよう
にしたが、例えば、ここでは槽１内温度の設定と目標湿
度の設定を行うようにしてもよい。その場合には、この
部分６は槽１内の目標温度と目標湿度とから槽２内温度
を算出し、これを調節器５へ与えるように構成すればよ
い。In the above-described embodiment, the temperature setting / control unit 6 is provided and the temperature inside the tank 1 and the temperature inside the tank 2 are set here. However, for example, here, the temperature inside the tank 1 and the target humidity are set. You may make it set. In that case, this portion 6 may be configured to calculate the temperature inside the tank 2 from the target temperature and the target humidity inside the tank 1 and to supply this to the controller 5.
さらに、前記実施例における温度調節器４および５の
一方または双方を制御部６と組み合わせて、一つの制御
部の形に構成してもよい。Further, one or both of the temperature controllers 4 and 5 in the above embodiment may be combined with the control unit 6 to form a single control unit.
また、槽１、槽２の温度制御操作端13、21は槽内温度
を直接制御するが、槽１、２をブライン槽中に埋沈さ
せ、該ブラインの温度を制御することで槽内温度を制御
してもよい。Further, the temperature control operation ends 13 and 21 of the tank 1 and the tank 2 directly control the temperature inside the tank. However, by immersing the tanks 1 and 2 in a brine tank and controlling the temperature of the brine, the temperature inside the tank is controlled. May be controlled.
以上説明したように本考案によると、二温度法による
恒温恒湿器であって、結露発生が無く、正確に所望の温
湿度雰囲気を得ることができ、また、結露を発生させる
ことなく、従来に比べ速やかに温湿度を変更できる恒温
恒湿器を提供することができる。As described above, according to the present invention, the constant temperature and humidity chamber by the two-temperature method is capable of accurately obtaining a desired temperature and humidity atmosphere without the occurrence of dew condensation, and without causing dew condensation. It is possible to provide a thermo-hygrostat capable of changing the temperature and humidity more quickly than
第１図は本考案の一実施例の概略構成図、第２図は恒温
恒湿槽内の温湿度を変更する場合における恒温恒湿槽内
温度および飽和空気温度の変化状態の例を示すグラフで
ある。 １…恒温恒湿槽 13…温度制御操作端 14…温度検出端 ２…飽和空気発生槽 21…温度制御操作端 22…電磁弁 24…温度検出端 ３…乾燥空気発生槽 ４、５…温度調節器 ６…温度設定兼弁制御部FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, and FIG. 2 is a graph showing an example of changes in the temperature inside the constant temperature and humidity chamber and the saturated air temperature when the temperature and humidity inside the constant temperature and humidity chamber are changed. Is. 1 ... Constant temperature and humidity chamber 13 ... Temperature control operation end 14 ... Temperature detection end 2 ... Saturated air generation tank 21 ... Temperature control operation end 22 ... Solenoid valve 24 ... Temperature detection end 3 ... Dry air generation tank 4, 5 ... Temperature adjustment Unit 6 ... Temperature setting and valve control unit
Claims (1)
を有する恒温恒湿槽と、 第２温度検出手段及び第２温度制御操作端を有し、供給
されてくる空気を飽和空気にして送り出す飽和空気発生
槽と、 前記飽和空気発生槽から飽和空気を前記恒温恒湿槽へ供
給するパイプと、 前記パイプの途中に設けられた弁と、 前記第１温度検出手段で検出される前記恒温恒湿槽内温
度が前記第２温度検出手段で検出される前記飽和空気発
生槽内温度以下のときは、前記弁を全閉とする制御部と
を備えたことを特徴とする恒温恒湿器。1. A constant temperature and humidity chamber having a first temperature detection means and a first temperature control operation end, and a second temperature detection means and a second temperature control operation end, wherein the supplied air is saturated air. A saturated air generating tank, a pipe for supplying saturated air from the saturated air generating tank to the constant temperature and constant humidity tank, a valve provided in the middle of the pipe, and the first temperature detecting means for detecting the saturated air. When the temperature inside the constant temperature and humidity chamber is equal to or lower than the temperature inside the saturated air generation chamber detected by the second temperature detecting means, a control unit for fully closing the valve is provided. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082004U JP2511680Y2 (en) | 1990-07-31 | 1990-07-31 | Constant temperature and humidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082004U JP2511680Y2 (en) | 1990-07-31 | 1990-07-31 | Constant temperature and humidity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441728U JPH0441728U (en) | 1992-04-09 |
| JP2511680Y2 true JP2511680Y2 (en) | 1996-09-25 |
Family
ID=31628437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990082004U Expired - Lifetime JP2511680Y2 (en) | 1990-07-31 | 1990-07-31 | Constant temperature and humidity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511680Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2502240B2 (en) * | 1992-04-14 | 1996-05-29 | 株式会社第一科学 | Dew condensation prevention method for constant temperature and humidity chamber |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6174034U (en) * | 1984-10-23 | 1986-05-19 | ||
| JPS61178134U (en) * | 1985-04-24 | 1986-11-06 |
-
1990
- 1990-07-31 JP JP1990082004U patent/JP2511680Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441728U (en) | 1992-04-09 |
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