JPH036457B2 - - Google Patents
Info
- Publication number
- JPH036457B2 JPH036457B2 JP19942084A JP19942084A JPH036457B2 JP H036457 B2 JPH036457 B2 JP H036457B2 JP 19942084 A JP19942084 A JP 19942084A JP 19942084 A JP19942084 A JP 19942084A JP H036457 B2 JPH036457 B2 JP H036457B2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- temperature
- outer cylinder
- container
- amount
- 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
Links
- 238000012360 testing method Methods 0.000 claims description 25
- 230000007613 environmental effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 description 10
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Description
【発明の詳細な説明】
ａ 発明の目的
（産業上の利用分野）
この発明は、電子機器、通信機器、写真機器等
の各種精密機器やその部品の耐圧力、耐温度等の
各種耐久性試験を行なうための耐環境試験器内の
温度を設定値に維持するための温度制御方法に関
する。[Detailed Description of the Invention] a. Purpose of the Invention (Field of Industrial Application) This invention is applicable to various durability tests such as pressure resistance and temperature resistance of various precision equipment such as electronic equipment, communication equipment, and photographic equipment, and their parts. The present invention relates to a temperature control method for maintaining the temperature in an environmental tester at a set value for carrying out the test.
（従来の技術）
耐環境試験器は、例えば第１図に示すように構
成されている。この第１図の試験器は、横型有底
筒状で、開放端を蓋１で密閉できるようにした外
筒２内に、一端開放の内筒３を設け、外筒２を外
から加熱するヒータ４、外筒の下部に溜めた水を
蒸発させるヒータ５を設け、内筒３の奥に開放し
た通気口６に置いたフアン７を内部磁力カツプリ
ング片８ａ、外部磁力カツプリング片８ｂより成
る磁力カツプリングを介して外筒外からモータ９
で駆動するように構成しており、フアン７の付近
にもヒータ１０を設けている。被検物１１は内筒
３内の台１２に載置され、ヒータ４，５，１０を
制御することにより、試験器内の上記雰囲気を不
飽和、飽和、過熱の各状態に調整して被検物の加
速試験を行なう。(Prior Art) An environmental tester is configured as shown in FIG. 1, for example. The tester shown in Fig. 1 has a horizontal bottomed cylinder shape, and an inner cylinder 3 with one end open is provided inside an outer cylinder 2 whose open end can be sealed with a lid 1, and the outer cylinder 2 is heated from the outside. A heater 4 and a heater 5 for evaporating water stored in the lower part of the outer cylinder are installed, and a fan 7 placed in a vent 6 opened at the back of the inner cylinder 3 is connected to a magnetic force consisting of an internal magnetic coupling piece 8a and an external magnetic coupling piece 8b. Motor 9 is inserted from outside the outer cylinder via the coupling ring.
A heater 10 is also provided near the fan 7. The test object 11 is placed on a stand 12 inside the inner cylinder 3, and by controlling the heaters 4, 5, and 10, the atmosphere inside the test chamber is adjusted to unsaturated, saturated, and superheated states. Perform accelerated testing of the specimen.
ところで、このように構成される耐環境試験器
に於いては、加速試験中に被検物１１を活性化す
るため、この被検物１１に通電しながら試験を行
なう場合がある。このため、耐環境試験器を構成
する外筒２に、第２図に詳示するようなプラグ１
３を装着し、このプラグ１３を介して被検物１１
に通電することが従来から行なわれている。この
プラグ１３は、中心に設けた電極棒１４の周囲
を、この電極棒の両端部を除いて碍子或はテフロ
ン等の絶縁材１５で囲み、更にこの絶縁材１５の
中間部外周に、外周に雄ねじ１６と角柱部１７と
を形成した金属製の取付環１８を固定したもの
で、上記雄ねじ１６を外筒２の通孔１９の周縁部
に形成した円筒部２０の内周面の雌ねじ２１に螺
合し緊締することにより、上記外筒２の周壁面を
貫通して装着される。或は第３図に示すように、
絶縁材１５の外周面に形成したフランジ部を外筒
壁面とグランドナツト２５との間で挾持固定する
場合もある。いずれの場合も、外筒２内の被検物
１１に通電する場合は、外筒２内に突出した電極
棒１４の一端と被検物１１とを導線２２（第１
図）により導通し、外筒２外に於いて上記電極棒
１４の他端に一端を接続した別の導線２３の他端
を電源（図示せず）に接続する。 By the way, in the environmental tester configured as described above, in order to activate the test object 11 during an accelerated test, the test may be conducted while the test object 11 is energized. For this reason, a plug 1 as shown in FIG.
3 and connect the test object 11 through this plug 13.
It has been conventional practice to energize. This plug 13 has an electrode rod 14 provided at the center surrounded by an insulating material 15 such as insulator or Teflon, except for both ends of the electrode rod, and furthermore, an electrode rod 14 is placed at the center of the electrode rod, and an insulating material 15 such as insulator or Teflon is placed around the outer periphery of the intermediate portion of the insulating material 15. A metal mounting ring 18 having a male thread 16 and a prismatic portion 17 is fixed. By screwing together and tightening, the outer tube 2 is attached so as to penetrate through the peripheral wall surface of the outer tube 2. Or as shown in Figure 3,
In some cases, a flange formed on the outer peripheral surface of the insulating material 15 is clamped and fixed between the outer cylinder wall surface and the gland nut 25. In either case, when energizing the test object 11 inside the outer cylinder 2, one end of the electrode rod 14 protruding into the outer cylinder 2 and the test object 11 are connected to the conductive wire 22 (first
The other end of another conducting wire 23 whose one end was connected to the other end of the electrode rod 14 outside the outer cylinder 2 is connected to a power source (not shown).
ところが、このようにして加速試験中の被検物
１１に通電すると、次に述べるような不都合を生
じた。即ち、加速試験中の外筒２内は高温多湿の
状態となるが、一部が外筒２外に露出しているプ
ラグ１３は外気によつて冷却されるため、プラグ
１３を構成する絶縁材１５の表面温度が外筒２内
の温度よりも低くなる。このため、外筒２の内側
に露出している絶縁材１５の表面に外筒２内の空
気中に含まれている水蒸気が結露し易く、絶縁材
１５の表面全体に亘つて結露すると電極棒１４と
金属製の外筒２との間の絶縁が不良となつてしま
う。 However, when electricity was applied to the test object 11 during an accelerated test in this manner, the following disadvantages occurred. That is, during the accelerated test, the inside of the outer cylinder 2 is in a high temperature and humid state, but the plug 13, which is partially exposed outside the outer cylinder 2, is cooled by the outside air, so that the insulating material constituting the plug 13 is cooled. 15 becomes lower than the temperature inside the outer cylinder 2. For this reason, water vapor contained in the air inside the outer cylinder 2 is likely to condense on the surface of the insulating material 15 exposed inside the outer cylinder 2, and if dew condenses over the entire surface of the insulating material 15, the electrode rod The insulation between 14 and the metal outer cylinder 2 becomes poor.
このような不都合を解決するため、実願昭58−
85187号（実開昭59−191642号）では、第４図に
示すように、プラグ１３を加熱するヒータ２４を
設け、このプラグ１３の絶縁材１５の表面温度を
外筒２内の空気の温度よりも高くして、絶縁材１
５の表面に外筒２内の空気中に含まれる水蒸気が
結露しないようにすることが考えられている。 In order to solve this inconvenience, a practical application
In No. 85187 (Utility Model Application No. 59-191642), as shown in FIG. Insulation material 1
It is considered to prevent water vapor contained in the air inside the outer cylinder 2 from condensing on the surface of the outer cylinder 5.
（発明が解決しようとする問題点）
ところが、上述のように単にヒータ２４により
プラグ１３を加熱したのでは、次に述べるような
不都合が生じる。(Problems to be Solved by the Invention) However, if the plug 13 is simply heated by the heater 24 as described above, the following problems occur.
即ち、耐環境試験を開始するため、ヒータ４，
５，１０に通電し、外筒２及び内筒３内を高温多
湿の状態にした後は、ヒータ４，５への通電を停
止し、サーモスタツト等の働きによりヒータ１０
への通電を断続させて外筒２内の温度を設定値に
維持するようにしている。一方、外筒２の周囲は
断熱材（図示せず）により断熱されているため、
ヒータ１０への通電を停止している間にも外筒２
内の温度は急には低下せず、大容量（例えば
500W程度）のヒータ１０への通電は極く短時間
しか行なわれない。一方、プラグ１３を加熱する
ための小容量（例えば60W程度）のヒータ２４へ
の通電は、大容量のヒータ１０への通電制御とは
関係なく継続して行なわれるため、プラグ１３の
絶縁材１５を介して外筒２内に伝わる熱量によつ
て、この外筒２内の温度が高くなり、飽和状態に
於いて試験をしなければならない場合にも不飽和
状態となつてしまう。 That is, in order to start the environmental resistance test, the heaters 4,
After the heaters 5 and 10 are energized to make the inside of the outer cylinder 2 and inner cylinder 3 hot and humid, the energization to the heaters 4 and 5 is stopped, and the heater 10 is turned off by the action of a thermostat or the like.
The temperature inside the outer cylinder 2 is maintained at a set value by intermittent energization. On the other hand, since the outer cylinder 2 is insulated with a heat insulating material (not shown),
Even while the power supply to the heater 10 is stopped, the outer cylinder 2
The temperature inside does not drop suddenly, and the large capacity (e.g.
The power supply to the heater 10 (approximately 500W) is carried out only for a very short time. On the other hand, since the power supply to the small capacity (for example, about 60 W) heater 24 for heating the plug 13 is performed continuously regardless of the power supply control to the large capacity heater 10, the insulating material 15 of the plug 13 is continuously energized. The amount of heat transmitted into the outer cylinder 2 through the heat increases the temperature inside the outer cylinder 2, resulting in an unsaturated state even when a test must be conducted in a saturated state.
本発明の耐環境試験器の温度制御方法は、プラ
グ加熱用のヒータへの通電を耐環境試験器内の空
気加熱用のヒータへの通電と関連させて制御し、
上述のような不都合を解消するものである。 The temperature control method for an environmental tester of the present invention controls the energization of the heater for heating the plug in conjunction with the energization of the heater for heating the air in the environmental tester,
This solves the above-mentioned inconvenience.
ｂ 発明の構成
（問題を解決するための手段）
本発明の耐環境試験器の温度制御方法は、耐環
境試験器の容器である外筒２内の設定温度とこの
外筒２内の実際の温度との差から、外筒２内の空
気加熱用の第一のヒータであるヒータ１０と、プ
ラグ加熱用の第二のヒータであるヒータ２４とに
通電すべき総通電量を求め、この総通電量が小さ
い場合には、ヒータ１０への通電を停止したまま
ヒータ２４への通電量のみを上記総通電量に合せ
て調節し、総通電量がヒータ２４への通電のみで
は不足する程度に大きくなつた場合には、このヒ
ータ２４への通電を継続した状態のまま、ヒータ
１０への通電量を総通電量に合せて調節するもの
である。b. Structure of the invention (means for solving the problem) The temperature control method for an environmental tester of the present invention is based on the set temperature in the outer cylinder 2, which is the container of the environmental tester, and the actual temperature in the outer cylinder 2. From the difference in temperature, the total amount of current that should be applied to the heater 10, which is the first heater for heating the air in the outer cylinder 2, and the heater 24, which is the second heater for heating the plug, is calculated. If the energization amount is small, adjust only the energization amount to the heater 24 in accordance with the above-mentioned total energization amount while stopping the energization to the heater 10, so that the total energization amount is insufficient to energize the heater 24 alone. When the amount of current increases, the amount of current applied to the heater 10 is adjusted in accordance with the total amount of current applied, while the current applied to the heater 24 is continued.
第５図は本発明の制御方法により通電量を制御
する場合に於ける総通電量と各ヒータ１０，２４
への通電量との関係を示している。通電量を示す
数値に於いて、０％はヒータへの通電を全く行な
う必要がない事、即ち総通電量が０％の場合、設
定温度と実際の温度とが等しい事を表わしてい
る。又、100％はヒータへの通電を継続したまま
とする必要がある事を示しており、総通電量が
100％の場合、設定温度に比べて実際の温度が相
当に低い事を示している。 FIG. 5 shows the total amount of energization and each heater 10, 24 when the amount of energization is controlled by the control method of the present invention.
This shows the relationship between the amount of current applied to the In the numerical value indicating the amount of energization, 0% indicates that there is no need to energize the heater at all, that is, when the total amount of energization is 0%, the set temperature and the actual temperature are equal. Also, 100% indicates that it is necessary to continue energizing the heater, and the total amount of energization is
100% indicates that the actual temperature is considerably lower than the set temperature.
設定温度と実際の温度との差が小さく、総通電
量が０〜ｘ％の比較的低い値の場合、容量の大き
なヒータ１０への通電は停止したまま、容量の小
さなヒータ２４への通電量を第５図に鎖線ａで示
すように０〜100％の間で変化させる。設定温度
と実際の温度との差が小さく総通電量がｘ〜100
％の比較的高い値の場合、容量の小さなヒータ２
４への通電は縦続（ヒータ２４の通電量100％を
維持）したまま、容量の大きなヒータ１０への通
電量を０〜100％の間で変化させる。 When the difference between the set temperature and the actual temperature is small and the total energization amount is a relatively low value of 0 to x%, the energization to the heater 10 with a large capacity is stopped, and the amount of energization is applied to the heater 24 with a small capacity. is varied between 0 and 100% as shown by the chain line a in FIG. The difference between the set temperature and the actual temperature is small, and the total energization amount is x ~ 100
For relatively high values of %, small capacity heater 2
The amount of current applied to the large capacity heater 10 is varied between 0 and 100% while the current applied to the heaters 4 is maintained in series (maintaining the amount of current applied to the heater 24 at 100%).
ここで、ヒータ２４への通電量が100％となり、
ヒータ１０への通電が開始される点に於ける総通
電量の値ｘは、次の式で求められる。 Here, the amount of electricity supplied to the heater 24 is 100%,
The value x of the total energization amount at the point where energization of the heater 10 is started is determined by the following formula.
ｘ＝αW2／W1＋αW2×100（％）
但し、W1：第一のヒータであるヒータ１０の
容量（Ｗ）
W2：第二のヒータであるヒータ２４の
容量（Ｗ）
α：第二のヒータであるヒータ２４によ
りプラグ１３に加えられた熱量量の
うち、耐環境試験器の容器である外
筒２内の空気に伝えられる熱量の割
合（０＜α＜１）で、実験的に求め
られる。 x = αW 2 /W 1 + αW 2 ×100 (%) However, W 1 : Capacity (W) of heater 10 which is the first heater W 2 : Capacity (W) of heater 24 which is the second heater α: In the experiment, the ratio (0<α<1) of the amount of heat transferred to the air inside the outer cylinder 2, which is the container of the environmental tester, of the amount of heat added to the plug 13 by the heater 24, which is the second heater. is required.
ｃ 発明の効果
本発明による耐環境試験器の制御方法は以上に
述べた通り構成されるため、耐環境試験器の運転
中に試験器の容器内の温度が設定温度よりも高く
なることがなく、蒸気飽和の状態で試験を行なつ
ていて不飽和状態となり、加速試験の信頼性が損
なわれることがない。なお、設定の温度と実際の
温度との差から各ヒータへの通電量を求める事
は、マイクロコンピユータに第５図に示した様な
関係を記憶させることで容易に行なえる。c. Effects of the Invention Since the method for controlling an environmental tester according to the present invention is configured as described above, the temperature inside the container of the tester does not rise higher than the set temperature while the environmental tester is in operation. , the reliability of the accelerated test will not be compromised if the test is conducted in a steam saturated state, resulting in an unsaturated state. Note that determining the amount of current to be applied to each heater from the difference between the set temperature and the actual temperature can be easily done by storing the relationship shown in FIG. 5 in the microcomputer.
第１図は耐環境試験器の縦断側面図、第２図は
通電用プラグの第１例、第３図は同第２例をそれ
ぞれ示す第１図のＡ部拡大断面図、第４図はヒー
タを付設した通電用プラグを示す第２図同様の
図、第５図は本発明の制御方法による各ヒータへ
の通電量の関係を示す線図である。
１：蓋、２：外筒、３：内筒、４，５：ヒー
タ、６：通気口、７：フアン、８ａ：内部磁力カ
ツブリング片、８ｂ：外部磁力カツプリング片、
９：モータ、１０：ヒータ、１１：被検物、１
２：台、１３：プラグ、１４：電極棒、１５：絶
縁材、１６：雄ねじ、１７：角柱部、１８：取付
環、１９：通孔、２０：円筒部、２１：雌ねじ、
２２，２３：導線、２４：ヒータ、２５：グラン
ドナツト。
Fig. 1 is a vertical side view of the environmental tester, Fig. 2 is an enlarged sectional view of section A in Fig. 1, showing a first example of the energizing plug, and Fig. 3 is an enlarged sectional view of the second example. FIG. 2 is a diagram similar to FIG. 2 showing an energizing plug provided with a heater, and FIG. 5 is a diagram showing the relationship between the amounts of energization to each heater according to the control method of the present invention. 1: Lid, 2: Outer cylinder, 3: Inner cylinder, 4, 5: Heater, 6: Vent, 7: Fan, 8a: Internal magnetic coupling piece, 8b: External magnetic coupling piece,
9: Motor, 10: Heater, 11: Test object, 1
2: Base, 13: Plug, 14: Electrode rod, 15: Insulating material, 16: Male thread, 17: Prismatic part, 18: Mounting ring, 19: Through hole, 20: Cylindrical part, 21: Female thread,
22, 23: Conductor wire, 24: Heater, 25: Grand nut.
Claims (1)
多湿の状態として上記被検物の加速試験を行なう
耐環境試験器のうち、容器内の気体を加熱する大
容量の第一のヒータと別に、上記被検物に通電す
るために容器壁面を貫通して設けたプラグを加熱
する小容量の第二のヒータを設けた耐環境試験器
の容器内の温度を制御する方法であつて、上記容
器内の設定温度と実際の温度との差から上記第
一、第二の両ヒータに通電すべき総通電量を求
め、この総通電量が小さい場合には第一のヒータ
への通電を停止したまま第二のヒータへの通電量
のみを調節し、総通電量が大きく第一のヒータへ
の通電を行なう場合には、第二のヒータへの通電
を継続したままとする耐環境試験器の温度制御方
法。1. Among the environmental testers, which perform accelerated testing of the test specimen by placing the test object in a container and keeping the inside of the container in a high temperature and humid state, a large-capacity first heater that heats the gas in the container Separately, a method for controlling the temperature inside the container of an environmental tester equipped with a small-capacity second heater that heats a plug provided through the wall of the container to energize the test object, The total amount of current to be applied to both the first and second heaters is determined from the difference between the set temperature and the actual temperature in the container, and if this total amount of current is small, the first heater is not energized. If the total amount of current is large and the first heater is energized, an environmental resistance test is performed in which the second heater is kept energized. How to control the temperature of the vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19942084A JPS6177741A (en) | 1984-09-26 | 1984-09-26 | Temperature control method of environment resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19942084A JPS6177741A (en) | 1984-09-26 | 1984-09-26 | Temperature control method of environment resistance tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6177741A JPS6177741A (en) | 1986-04-21 |
| JPH036457B2 true JPH036457B2 (en) | 1991-01-30 |
Family
ID=16407505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19942084A Granted JPS6177741A (en) | 1984-09-26 | 1984-09-26 | Temperature control method of environment resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6177741A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4718426B2 (en) * | 2006-12-13 | 2011-07-06 | エスペック株式会社 | Environmental test equipment |
| JP2014066594A (en) * | 2012-09-26 | 2014-04-17 | Hitachi Appliances Inc | Constant-temperature constant-humidity apparatus |
| CN104914036B (en) * | 2015-06-29 | 2017-07-04 | 上海宝钢节能环保技术有限公司 | A kind of pipeline corrosion resistance characteristic pilot system |
| CN108956443B (en) * | 2017-05-22 | 2021-03-26 | 中国科学院上海应用物理研究所 | Fused salt temperature difference corrosion test device |
-
1984
- 1984-09-26 JP JP19942084A patent/JPS6177741A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6177741A (en) | 1986-04-21 |
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