JP6660335B2 - Environmental test equipment - Google Patents

Environmental test equipment Download PDF

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JP6660335B2
JP6660335B2 JP2017065091A JP2017065091A JP6660335B2 JP 6660335 B2 JP6660335 B2 JP 6660335B2 JP 2017065091 A JP2017065091 A JP 2017065091A JP 2017065091 A JP2017065091 A JP 2017065091A JP 6660335 B2 JP6660335 B2 JP 6660335B2
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slit
wall member
wall
test
test chamber
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JP2018169213A5 (en
JP2018169213A (en
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渡辺　正和
正和 渡辺
修一 谷口
修一 谷口
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Espec Corp
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Espec Corp
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Priority to CN201810247067.3A priority patent/CN108693063B/en
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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/0222—Temperature
    • G01N2203/0224—Thermal cycling

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  • Immunology (AREA)
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  • Chemical & Material Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Refrigerator Housings (AREA)

Description

本発明は、試験室を有し、当該試験室内を目標とする温度や湿度に調整する環境試験装置に関するものである。   The present invention relates to an environmental test apparatus that has a test room and adjusts the test room to target temperatures and humidity.

製品や素材等の性能や耐久性等を試験する装置として、環境試験装置がある。環境試験装置は、被試験物が載置される試験室を有し、この試験室内の温度や湿度を所望の試験環境に調整する機能を備えた装置である。試験室内は、被試験物の性能や耐久性等の評価を行うべく、低温環境に制御されたり、逆に高温環境に制御される場合がある。   As a device for testing the performance and durability of products and materials, there is an environmental test device. The environmental test apparatus has a test room in which a test object is placed, and has a function of adjusting the temperature and humidity in the test room to a desired test environment. The inside of the test chamber may be controlled in a low-temperature environment or conversely in a high-temperature environment in order to evaluate the performance and durability of the test object.

環境試験装置は、試験室内に外気と異なる環境を作り出す場合があるから、試験室は断熱壁で覆われている場合が多い。
環境試験装置の断熱壁は、多くの場合、二重構造となっており、その間の空間にグラスウール等の断熱材が内蔵されたものが多い。
即ち断熱壁は、試験室の内面を構成する内壁部材と、試験室の外郭を構成する外壁部材を有する二重構造であり、その間に断熱材充填空間がある。そしてグラスウール等の断熱材が前記断熱材充填空間に充填されている。 Since the environmental test apparatus may create an environment different from the outside air in the test room, the test room is often covered with a heat insulating wall.
Insulation walls of environmental testing devices often have a double structure, and a space between them often contains a heat insulating material such as glass wool.
That is, the heat insulating wall has a double structure having an inner wall member forming the inner surface of the test chamber and an outer wall member forming the outer shell of the test chamber, and there is a heat insulating material filling space therebetween. A heat insulating material such as glass wool is filled in the heat insulating material filling space.

試験室は外部と遮断されていて空気の出入りが少ないことが好ましい。その一方で、試験室内に被試験物を出し入れする必要がある。そのため試験室には扉部材が設けられている。
すなわち試験室は、一面に開口が設けられた試験室本体と、扉部材によって構成されており、試験室本体の開口に扉部材があり、扉部材によって試験室本体の開口を開閉する構造となっている場合が多い。 It is preferable that the test chamber is isolated from the outside and the air flow is low. On the other hand, it is necessary to put the test object in and out of the test room. Therefore, a door member is provided in the test room.
That is, the test chamber includes a test chamber main body having an opening on one surface and a door member.The test chamber main body has an opening provided with a door member, and the door member opens and closes the opening of the test chamber main body. Often have.

試験室本体の開口部は、断熱材充填空間を閉塞する必要から、内壁部材と外壁部材を接続する必要がある。
ここで環境試験装置は、試験室内に高温環境や低温環境を創出するものであるから、試験室の内壁部材は、試験室内に創出される環境に応じて高温状態や低温状態となる。
これに対して、外壁部材は、多くの場合、外気にさらされているので、常温状態である。
そのため内壁部材と外壁部材を直接接続すると、内壁部材の熱や冷熱が、外壁部材に伝導され、試験室内の熱エネルギーや冷熱が外部に放散してしまう。
前記した様に環境試験装置は、試験室内の環境を高温や低温にする場合があり、且つその状態を保持する必要がある場合があるから、内壁部材と外壁部材との接続部分を介した熱伝導を無視することができない。
この問題を解決するため、特許文献１に開示された環境試験装置では、内壁部材と外壁部材を熱伝導率が低い素材で作られた接続部材で接続している。 Since the opening of the test chamber main body needs to close the heat insulating material filling space, it is necessary to connect the inner wall member and the outer wall member.
Here, since the environmental test apparatus creates a high-temperature environment or a low-temperature environment in the test room, the inner wall member of the test room is in a high-temperature state or a low-temperature state according to the environment created in the test room.
On the other hand, the outer wall member is usually at room temperature because it is exposed to the outside air in many cases.
Therefore, when the inner wall member and the outer wall member are directly connected, the heat and cold of the inner wall member are transmitted to the outer wall member, and the heat energy and cold heat in the test chamber are radiated to the outside.
As described above, the environmental test apparatus may set the environment in the test chamber to a high or low temperature, and may need to maintain the state. Therefore, heat generated through the connection between the inner wall member and the outer wall member may be required. Conduction cannot be ignored.
In order to solve this problem, in the environmental test device disclosed in Patent Document 1, the inner wall member and the outer wall member are connected by a connecting member made of a material having low thermal conductivity.

特開２０１３−７２６４８号公報JP 2013-72648 A

特許文献１に開示された環境試験装置では、内壁部材と外壁部材間の熱移動が少なく、試験室の断熱性能が高い。
しかしながら、稀に、接続部材が割れてしまう場合があった。
特に、試験室内の温度変化が速い場合や、試験室の設定温度が高い場合、試験温度の設定温度が低い場合に割れる場合が多かった。また接続部材の割れる位置は、接続部材の角の部位である場合が多かった。 In the environmental test apparatus disclosed in Patent Literature 1, heat transfer between the inner wall member and the outer wall member is small, and the heat insulation performance of the test chamber is high.
However, in rare cases, the connection member may be broken.
In particular, when the temperature change in the test room is fast, when the set temperature of the test room is high, and when the set temperature of the test temperature is low, the crack often occurs. In addition, the position at which the connecting member was broken was often a corner of the connecting member.

接続部材が割れる原因は、内壁部材と接続部材の膨張率の差によるものと想定される。内壁部材は、ステンレススチールに代表される金属によって作られている場合が多い。
一方、接続部材は樹脂によって作られている場合が多い。
本発明者の試算では、仮に内壁部材の一辺の長さ及び接続部材の一辺の長さが共に１０００ｍｍであると仮定し、試験室内の温度が摂氏２５度から１８０度に上昇すると仮定すると、両者の間には、線膨張率の差によって０．４２ｍｍの寸法差が生じる。そのため接続部材に応力が掛かり亀裂が発生してしまうと予想される。
また内壁部材と接続部材は、温度上昇カーブが異なり、両者の温まり方や冷え方が異なる。そのため瞬間的な伸び量や縮み量の差によって接続部材にストレスが掛かるものと予想される。 It is assumed that the cause of the connection member breaking is due to the difference in the expansion coefficient between the inner wall member and the connection member. The inner wall member is often made of a metal typified by stainless steel.
On the other hand, the connection member is often made of resin.
In the estimation of the inventor, it is assumed that the length of one side of the inner wall member and the length of one side of the connection member are both 1000 mm, and assuming that the temperature in the test chamber increases from 25 degrees Celsius to 180 degrees Celsius, Between them, there is a dimensional difference of 0.42 mm due to the difference in linear expansion coefficient. Therefore, it is expected that stress will be applied to the connecting member and cracks will occur.
Further, the inner wall member and the connecting member have different temperature rise curves, and have different heating and cooling methods. For this reason, it is expected that stress will be applied to the connecting member due to an instantaneous difference in the amount of expansion and contraction.

また外壁部材と内壁部材の熱による変形についても亀裂発生の原因の一つであると予想される。
即ち外壁部材は、多くの場合、外気に触れているから、その温度は外気温度に近く、一定の形状を保持している。
これに対して内壁部材は、高温環境や低温環境にさらされるので、熱による膨張や収縮が起きる。そのため、内壁部材と接続部材との接続部分が内壁部材の膨張・収縮によって移動し、内壁部材と外壁部材を繋ぐ接続部材に、応力が掛かる。そして長期に渡って使用する内に、接続部材に亀裂が生じてしまうと予想される。 It is also expected that heat deformation of the outer wall member and the inner wall member is one of the causes of crack generation.
That is, since the outer wall member is often in contact with the outside air, its temperature is close to the outside air temperature and maintains a constant shape.
On the other hand, since the inner wall member is exposed to a high temperature environment or a low temperature environment, expansion and contraction due to heat occur. Therefore, the connecting portion between the inner wall member and the connecting member moves due to the expansion and contraction of the inner wall member, and stress is applied to the connecting member connecting the inner wall member and the outer wall member. It is expected that the connection member will be cracked during use over a long period of time.

本発明は、従来技術の上記した問題点に注目し、内壁部材と外壁部材間を接続する接続部材が割れにくい環境試験装置を提供することを課題とする。 The present invention focuses on the above-mentioned problems of the prior art, and to provide a connecting member unbreakable environmental test device for connecting between the inner wall member and the outer wall member.

上記した課題を解決するための態様は、内部に所望の環境を創出可能であって被試験物を配置する試験室を有し、前記試験室は、少なくとも一面に開口部を有する試験室本体と、当該開口部を開閉する扉部材を有し、試験室本体の少なくとも一部は断熱壁で覆われており、試験室本体の開口部の少なくとも一部の断熱壁は、内壁部材と、外壁部材と、断熱材と、接続部材を有し、前記内壁部材と外壁部材の間に形成された空間に前記断熱材が配され、接続部材によって内壁部材と外壁部材が接続されており、前記接続部材は、複数の辺部を有していて中央が開口した枠を構成するものである環境試験装置において、前記接続部材にスリットまたは切り欠きが形成されていることを特徴とする環境試験装置である。   An aspect for solving the above-described problem has a test chamber in which a desired environment can be created and a test object is arranged, and the test chamber has a test chamber main body having an opening on at least one surface. A door member that opens and closes the opening, at least a part of the test chamber main body is covered with a heat insulating wall, and at least a part of the heat insulating wall of the opening of the test chamber main body includes an inner wall member and an outer wall member. And a heat insulating material and a connecting member, wherein the heat insulating material is disposed in a space formed between the inner wall member and the outer wall member, and the inner wall member and the outer wall member are connected by the connecting member, and the connecting member Is an environmental test apparatus having a frame having a plurality of sides and an open center, wherein a slit or a notch is formed in the connection member. .

ここでスリットは、単なる切れ目であって幅が実質的にゼロであるものを含む。
本発明の環境試験装置では、接続部材にスリットや切り欠きが設けられているので、各辺がある程度動く。そのため接続部材に掛かる応力が緩和され、亀裂が発生しにくい。 Here, the slit includes a slit that is merely a cut and has a width of substantially zero.
In the environmental test apparatus of the present invention, each side moves to some extent because the connection member is provided with the slit and the notch. Therefore, the stress applied to the connection member is reduced, and cracks are less likely to occur.

スリット又は切り欠きは枠の角の部位にあり、スリット又は切り欠きは、試験室本体の内壁部材側が開口し、外壁部材側が閉塞され、いずれの辺部に対しても斜め方向にのびるものであることが望ましい。   The slit or notch is located at a corner of the frame, and the slit or notch is open at the inner wall member side of the test chamber main body, closed at the outer wall member side, and extends obliquely to any side. It is desirable.

ネジ挿通孔を有し、当該ネジ挿通孔はスリット又は切り欠きと連通していることが望ましい。   It is desirable to have a screw insertion hole, and the screw insertion hole communicates with the slit or the notch.

スリット又は切り欠きにシール部材が充填されていることが望ましい。   It is desirable that the slit or the notch is filled with a seal member.

スリット又は切り欠きの前面にカバー部材が設けられていることが望ましい。   It is desirable that a cover member is provided on the front surface of the slit or the notch.

本発明の環境試験装置は、内壁部材と外壁部材間を接続する接続部材が割れにくい。 Environmental testing apparatus of the present invention is less likely cracks connecting member for connecting the inner wall member and the outer wall member.

本発明の実施形態の環境試験装置の斜視図であり、扉部材が開かれた状態を示す。It is a perspective view of an environmental test device of an embodiment of the present invention, and shows a state where a door member is opened. 図１の環境試験装置の内部構造を概念的に示す断面図である。It is sectional drawing which shows notionally the internal structure of the environmental test apparatus of FIG. 図１の環境試験装置の試験室本体の分解斜視図である。FIG. 2 is an exploded perspective view of a test chamber main body of the environmental test device of FIG. 1. 図１の環境試験装置で採用する接続部材の斜視図である。FIG. 2 is a perspective view of a connection member used in the environmental test device of FIG. 1. （ａ）は図４の接続部材の角部を拡大した部分正面図であり、（ｂ）は、同部分のスリットと試験室本体の関係を説明する部分正面図であって（ａ）から接続部材を外してスリットを二点鎖線で記したものである。(A) is a partial front view in which a corner portion of the connection member in FIG. 4 is enlarged, and (b) is a partial front view illustrating a relationship between the slit of the same and the test chamber main body, and is connected from (a). The member is removed and the slit is indicated by a two-dot chain line. 図１の試験室本体の開口部分のＡ−Ａ断面図である。It is AA sectional drawing of the opening part of the test chamber main body of FIG. 図１の試験室本体の開口部分の角の拡大断面斜視図であり、カバー部材を取り外した状態を示す。FIG. 2 is an enlarged sectional perspective view of a corner of an opening portion of the test chamber main body in FIG. 1, showing a state where a cover member is removed. （ａ）、（ｂ）、（ｃ）は、図１の試験室本体の開口部分の角部の挙動を示す説明図である。(A), (b), (c) is explanatory drawing which shows the behavior of the corner part of the opening part of the test chamber main body of FIG. 本発明の他の実施形態で採用する接続部材の角の正面図である。It is a front view of the corner of the connection member adopted by another embodiment of the present invention. 本発明のさらに他の実施形態で採用する接続部材の角の正面図である。FIG. 11 is a front view of a corner of a connection member used in still another embodiment of the present invention.

以下さらに本発明の実施形態について説明する。
最初に本実施形態の環境試験装置１の基本構造について説明する。本実施形態の環境試験装置１は、図１に示すように上部側の試験室領域１００と、下部側の機械領域１０１に分かれている。
試験室領域１００には、図２に示すように断熱壁２によって覆われた断熱槽３が設置されている。断熱槽３は試験室本体２１と扉部材２０によって構成されている。そして当該断熱槽３の一部に試験室５が形成されている。試験室５は、被試験物を設置する空間である。試験室５は試験室本体２１の内壁（正確には内部の仕切り３６が試験室５の奥壁となっている）と扉部材２０によって６面が囲まれた空間である。
正確には、試験室５は試験室本体２１と扉部材２０によって６面が囲まれた断熱空間の一部である。
環境試験装置１は、さらに空調機器１０と送風機１１を備えている。空調機器１０は、加湿装置６、冷却装置７及び加熱ヒータ８によって構成されている。
環境試験装置１には、試験室５と環状に連通する空調通風路１５があり、当該空調通風路１５に前記した空調機器１０と送風機１１が内蔵されている。 Hereinafter, embodiments of the present invention will be further described.
First, the basic structure of the environmental test device 1 of the present embodiment will be described. The environmental test apparatus 1 of the present embodiment is divided into a test chamber area 100 on the upper side and a mechanical area 101 on the lower side as shown in FIG.
In the test room area 100, a heat insulating tank 3 covered with a heat insulating wall 2 is installed as shown in FIG. The heat insulating tank 3 includes a test chamber main body 21 and a door member 20. A test room 5 is formed in a part of the heat insulating tank 3. The test room 5 is a space in which a test object is installed. The test room 5 is a space in which six surfaces are surrounded by the inner wall of the test room main body 21 (accurately, the inner partition 36 is the back wall of the test room 5) and the door member 20.
To be precise, the test room 5 is a part of a heat insulating space whose six surfaces are surrounded by the test room main body 21 and the door member 20.
The environmental test device 1 further includes an air conditioner 10 and a blower 11. The air conditioner 10 includes a humidifier 6, a cooling device 7, and a heater 8.
The environmental test apparatus 1 has an air-conditioning ventilation path 15 that communicates with the test room 5 in a ring shape. The air-conditioning apparatus 10 and the blower 11 are built in the air-conditioning ventilation path 15.

空調通風路１５は、断熱槽３の一部に形成され、空気吹き出し部１６と空気導入部１８の２箇所で試験室５と連通している。
そのため送風機１１を起動すると、試験室５内の空気が空気導入部１８から空調通風路１５内に導入される。そして空調通風路１５が通風状態となり、空調機器１０に空気が接触して熱交換や湿度調整がなされ、空気吹き出し部１６から試験室５内に調整後の空気が吹き出される。
また空調通風路１５の空気吹き出し部１６の近傍に、温度センサー１２と湿度センサー１３が設けられている。
環境試験装置１を使用する際には、送風機１１を運転して空調通風路１５内を通風状態とし、温度センサー１２及び湿度センサー１３の検出値が、設定環境の温度及び湿度に近づく様に空調機器１０を制御する。
その結果、試験室５内に所望の環境が創出される。 The air-conditioning ventilation path 15 is formed in a part of the heat insulating tank 3 and communicates with the test chamber 5 at two points, an air blowing section 16 and an air introducing section 18.
Therefore, when the blower 11 is started, the air in the test chamber 5 is introduced from the air introduction unit 18 into the air-conditioning ventilation passage 15. Then, the air-conditioning ventilation path 15 is in a ventilation state, air is brought into contact with the air-conditioning device 10, heat exchange and humidity adjustment are performed, and the adjusted air is blown out from the air blowing unit 16 into the test chamber 5.
In addition, a temperature sensor 12 and a humidity sensor 13 are provided near the air blowing section 16 of the air conditioning ventilation passage 15.
When the environmental test apparatus 1 is used, the air blower 11 is operated so that the air is passed through the air-conditioning ventilation path 15, and the air-conditioning is performed so that the detection values of the temperature sensor 12 and the humidity sensor 13 approach the temperature and humidity of the set environment. The device 10 is controlled.
As a result, a desired environment is created in the test room 5.

次に、本実施形態の環境試験装置１の試験室本体２１について説明する。試験室本体２１は、内面たる左右の側壁３１，３２、天面壁３３、底面壁３５を有し、正面側は大きく開口している。そして試験室本体２１の開口部１７に扉部材２０が装着され、扉部材２０によって試験室本体２１の開口部１７が開閉される。   Next, the test room main body 21 of the environmental test apparatus 1 of the present embodiment will be described. The test chamber main body 21 has left and right side walls 31 and 32 serving as inner surfaces, a top wall 33, and a bottom wall 35, and the front side is largely open. The door member 20 is attached to the opening 17 of the test chamber main body 21, and the opening 17 of the test chamber main body 21 is opened and closed by the door member 20.

試験室本体２１は、図３の様に内側筐体２２と、外側筐体２３が入れ子状に配された二重構造となっている。そして両者の間にグラスウール等の断熱材２５が充填されている。従って、前記した左右の側壁３１，３２、天面壁３３、底面壁３５等の断面形状は、図６の様に、内側筐体２２によって構成される内壁部材２６と、外側筐体２３によって構成される外壁部材２７によって囲まれた断熱材充填空間３０があり、その断熱材充填空間３０に断熱材２５が充填されたものとなっている。
本実施形態では、内側筐体２２及び外側筐体２３はいずれも金属によって作られたものであり、より詳細にはステンレススチールによって作られている。 The test chamber main body 21 has a double structure in which an inner housing 22 and an outer housing 23 are nested as shown in FIG. A heat insulating material 25 such as glass wool is filled between them. Therefore, the cross-sectional shapes of the left and right side walls 31, 32, the top wall 33, the bottom wall 35, and the like are constituted by the inner wall member 26 constituted by the inner casing 22 and the outer casing 23 as shown in FIG. There is a heat-insulating material filling space 30 surrounded by an outer wall member 27, and the heat-insulating material filling space 30 is filled with a heat insulating material 25.
In the present embodiment, the inner housing 22 and the outer housing 23 are both made of metal, and more specifically, made of stainless steel.

また試験室本体２１の開口部１７においては、内側筐体２２と、外側筐体２３の間に接続部材４０が設けられ、内側筐体２２と外側筐体２３の開口端同士が接続されている。
そのため試験室本体２１の開口部１７の断面形状は、図６の様に、内側筐体２２によって構成される内壁部材２６の端部と、外側筐体２３によって構成される外壁部材２７の端部との間が接続部材４０によって接続され、断熱材充填空間３０が閉鎖されている。 In the opening 17 of the test chamber main body 21, a connection member 40 is provided between the inner housing 22 and the outer housing 23, and the open ends of the inner housing 22 and the outer housing 23 are connected to each other. .
Therefore, as shown in FIG. 6, the cross-sectional shape of the opening 17 of the test chamber main body 21 is the end of the inner wall member 26 formed by the inner housing 22 and the end of the outer wall member 27 formed by the outer housing 23. Are connected by a connecting member 40, and the heat insulating material filling space 30 is closed.

次に接続部材４０について説明する。接続部材４０は、例えば不飽和ポリエステル樹脂の様な合成樹脂を素材とするものである。接続部材４０は、熱伝導率が金属に比べて低い。
接続部材４０の正面形状は、図３、図４の様に額縁に似た枠状体である。即ち接続部材４０は、平行に配された２列の縦辺（辺部）４１、４２と、縦辺４１、４２の両端を繋ぐ横辺（辺部）４３、４５を備えた四角形の枠であり、中央は大きな開口部４７となっている。
接続部材４０の各辺の断面形状は、図６の様に連続した段状の断面形状を有している。すなわち、接続部材４０は、中央の開口部４７側から外側に向けて、内側凹部５５、中間凸部５６、外側凹部５７の順番で形成されている。 Next, the connection member 40 will be described. The connection member 40 is made of a synthetic resin such as an unsaturated polyester resin. The connection member 40 has a lower thermal conductivity than metal.
The front shape of the connection member 40 is a frame-like body similar to a frame as shown in FIGS. That is, the connection member 40 is a rectangular frame having two rows of vertical sides (sides) 41 and 42 arranged in parallel and horizontal sides (sides) 43 and 45 connecting both ends of the vertical sides 41 and 42. There is a large opening 47 at the center.
The cross-sectional shape of each side of the connection member 40 has a continuous stepped cross-sectional shape as shown in FIG. That is, the connection member 40 is formed in the order of the inner concave portion 55, the intermediate convex portion 56, and the outer concave portion 57 from the center opening 47 side toward the outside.

本実施形態では、図４の様に接続部材４０の各角にスリット５０が形成されている。スリット５０の位置は、２列の縦辺４１、４２と、横辺４３、４５の接続部分であって、接続部材４０の４隅の角である。
また前記した様に、接続部材４０は連続した段状の断面形状を有しており、内側凹部５５、中間凸部５６、外側凹部５７を有している。そして前記したスリット５０は、内側凹部５５に形成されている。 In this embodiment, slits 50 are formed at each corner of the connection member 40 as shown in FIG. The position of the slit 50 is a connecting portion between the vertical sides 41 and 42 in two rows and the horizontal sides 43 and 45 and is the corner of the four corners of the connecting member 40.
Further, as described above, the connection member 40 has a continuous stepped cross-sectional shape, and has the inner concave portion 55, the intermediate convex portion 56, and the outer concave portion 57. The slit 50 described above is formed in the inner concave portion 55.

スリット５０は、接続部材４０の開口部４７側に開口しており、奥側が閉塞している。接続部材４０が試験室本体２１に取り付けられた状態を基準とすると、スリット５０は、試験室本体２１の内壁部材２６側に開口しており、外壁部材２７側が閉塞している。
スリット５０の溝幅は任意である。
スリット５０の最奥部は、やや拡径されており、ネジ挿通孔５１（図５参照）となっている。言い換えると、ネジ挿通孔５１は、スリット５０と連通している。
またスリット５０の向きは、いずれの辺に対しても約４５度に傾斜し、斜め方向に延びている。 The slit 50 is open on the opening 47 side of the connection member 40 and is closed on the back side. With reference to the state in which the connection member 40 is attached to the test room main body 21, the slit 50 is opened on the inner wall member 26 side of the test room main body 21, and the outer wall member 27 side is closed.
The groove width of the slit 50 is arbitrary.
The innermost part of the slit 50 is slightly enlarged in diameter, and forms a screw insertion hole 51 (see FIG. 5). In other words, the screw insertion hole 51 communicates with the slit 50.
The direction of the slit 50 is inclined at about 45 degrees to any side and extends in an oblique direction.

接続部材４０は、図３、図６に示すように、試験室本体２１の開口部１７の正面に配されて、内側筐体２２と、外側筐体２３の間の隙間であって、断熱材２５が充填される断熱材充填空間３０を塞ぐように固定されるものである。すなわち、接続部材４０は、外縁が外側筐体２３に沿う大きさに設定され、さらに内縁が内側筐体２２に沿う大きさに設定されている。
なお、内側筐体２２及び外側筐体２３は、図６に示すように、試験室本体２１正面側で折れ曲がった折曲部５８、６５を有し、接続部材４０は、その折曲部５８、６５に対して、ビス等の締結手段を用いて固定されている。
また本実施形態では、内側筐体２２の折曲部５８に接続部材４０の内側凹部５５が接している。また外側筐体２３の折曲部６５に接続部材４０の外側凹部５７が接している。
接続部材４０のスリット５０は、前記した様に内側凹部５５にあり、図５の様に、接続部材４０と内側筐体２２の接触領域（接触幅）の略全域にスリット５０が重なる。 As shown in FIGS. 3 and 6, the connection member 40 is disposed in front of the opening 17 of the test chamber main body 21, and is a gap between the inner housing 22 and the outer housing 23, and is a heat insulating material. It is fixed so as to close the heat insulating material filling space 30 filled with 25. That is, the connection member 40 has an outer edge set to a size along the outer housing 23 and an inner edge set to a size along the inner housing 22.
As shown in FIG. 6, the inner housing 22 and the outer housing 23 have bent portions 58 and 65 bent on the front side of the test chamber main body 21, and the connection member 40 has the bent portions 58 and 65. It is fixed to 65 using fastening means such as screws.
Further, in the present embodiment, the inner concave portion 55 of the connection member 40 is in contact with the bent portion 58 of the inner housing 22. The outer concave portion 57 of the connection member 40 is in contact with the bent portion 65 of the outer housing 23.
As described above, the slit 50 of the connection member 40 is located in the inner concave portion 55, and as shown in FIG. 5, the slit 50 overlaps substantially the entire contact area (contact width) between the connection member 40 and the inner housing 22.

また接続部材４０の各角のスリット５０には、シール材５３が充填されて目地埋め処理がなされている。シール材５３は、シリコン樹脂等のコーキング材である。そのためスリット５０の部分は、コーキング材で埋められており、内外の通気性はない。しかしながら、シール材５３は、柔軟性を持っており、接続部材４０に比べて大きな変形能がある。   The slits 50 at the respective corners of the connection member 40 are filled with a sealing material 53 and subjected to joint filling processing. The sealing material 53 is a caulking material such as a silicone resin. Therefore, the portion of the slit 50 is filled with a caulking material, and there is no air permeability inside and outside. However, the sealing member 53 has flexibility, and has greater deformability than the connecting member 40.

そして本実施形態では、接続部材４０の角の部分にカバー部材６０（図７、図８参照）が設けられ、スリット５０の外側がカバー部材６０で覆われている。そのため、スリット５０はカバー部材６０によって隠され、見栄えがよい。カバー部材６０の全周にもシール材６７が付着している。
カバー部材６０は、正面形状が概ね二等辺三角形の板であり、不飽和ポリエステル等の樹脂で作られている。二等辺三角形の底辺に相当する辺は、円弧状となっている。
カバー部材６０は、三角形の頂点近くの位置に、貫通孔６１が設けられている。 In the present embodiment, a cover member 60 (see FIGS. 7 and 8) is provided at a corner of the connection member 40, and the outside of the slit 50 is covered with the cover member 60. Therefore, the slit 50 is hidden by the cover member 60 and has a good appearance. A sealing material 67 is also attached to the entire periphery of the cover member 60.
The cover member 60 is a plate whose front shape is substantially an isosceles triangle, and is made of a resin such as unsaturated polyester. The side corresponding to the base of the isosceles triangle is an arc.
The cover member 60 is provided with a through hole 61 at a position near the vertex of the triangle.

カバー部材６０は、接続部材４０の角の部分にあり、図７の様にカバー部材６０の貫通孔６１及び接続部材４０のネジ挿通孔５１にネジ６２が挿通されている。そしてネジ６２の先端は、内側筐体２２に達し、内側筐体２２と係合している。
この様に、カバー部材６０は、一本のネジによって接続部材４０の角に取り付けられている。従って、図８に示す様に、カバー部材６０の、頂点から底辺に引いた垂線６６を境にその両翼を翼部６３ａ、６３ｂとすると、一方の翼部６３ａは、接続部材４０の縦辺又は横辺を覆う位置にあり、他方の翼部６３ｂは、接続部材４０の横辺又は縦辺を覆う。カバー部材６０の翼部６３ａ、６３ｂは、接続部材４０とシール材６７で接合されており、密閉性を保ちながら変形性を有する。 The cover member 60 is located at a corner of the connection member 40, and a screw 62 is inserted into the through hole 61 of the cover member 60 and the screw insertion hole 51 of the connection member 40 as shown in FIG. 7. Then, the tip of the screw 62 reaches the inner housing 22 and is engaged with the inner housing 22.
Thus, the cover member 60 is attached to the corner of the connection member 40 by one screw. Therefore, as shown in FIG. 8, when both wings are wing portions 63 a and 63 b at a boundary of a perpendicular line 66 drawn from the top to the bottom of the cover member 60, one wing portion 63 a is connected to the vertical side of the connection member 40 or The other wing portion 63b covers the horizontal side or the vertical side of the connection member 40. The wing portions 63a and 63b of the cover member 60 are joined to the connection member 40 by a sealing material 67, and have a deformability while maintaining a sealing property.

次に、本実施形態の環境試験装置１の接続部材４０の機能について説明する。
本実施形態の接続部材４０は、従来技術と同様、外縁が外側筐体２３によって構成される外壁部材２７に接続されている。また接続部材４０は、従来技術と同様、内縁が内側筐体２２によって構成される内壁部材２６と接続されている。
そのため試験室５内の温度によって、内側筐体２２が歪むと、接続部材４０は内側筐体２２から力を受ける。しかしながら本実施形態では、最も応力が集中するであろう角部にスリット５０が設けられている。そのため角部の応力集中が緩和され、破壊を免れる。 Next, the function of the connection member 40 of the environmental test device 1 of the present embodiment will be described.
The connection member 40 of the present embodiment is connected to the outer wall member 27 whose outer edge is formed by the outer housing 23, as in the related art. The connection member 40 is connected to the inner wall member 26 having an inner edge defined by the inner housing 22 as in the related art.
Therefore, when the inner housing 22 is distorted due to the temperature in the test chamber 5, the connection member 40 receives a force from the inner housing 22. However, in the present embodiment, the slit 50 is provided at a corner where stress is most likely to concentrate. As a result, stress concentration at the corners is reduced, and breakage is avoided.

例えば、図８（ｂ）の矢印の様に内側筐体２２の開口端の各辺が内側に狭まる様に変形した場合、接続部材４０の角は、スリット５０によって、開口端側が縮まる様に変形し、応力集中が緩和される。従って接続部材４０は割れにくい。   For example, when each side of the open end of the inner housing 22 is deformed to be narrowed inward as indicated by an arrow in FIG. 8B, the corner of the connection member 40 is deformed by the slit 50 so that the open end side is contracted. As a result, stress concentration is reduced. Therefore, the connecting member 40 is not easily broken.

逆に図８（ｃ）の矢印の様に内側筐体２２の開口端の各辺が外側に広がる様に変形した場合、接続部材４０の角は、スリット５０によって、開口端側が広がる様に変形し、応力集中が緩和される。従って接続部材４０は割れにくい。   Conversely, when each side of the open end of the inner casing 22 is deformed outward as indicated by the arrow in FIG. 8C, the corner of the connection member 40 is deformed by the slit 50 so that the open end side is expanded. As a result, stress concentration is reduced. Therefore, the connecting member 40 is not easily broken.

また本実施形態では、カバー部材６０の翼部６３ａ、６３ｂは、接続部材４０とシール材６７で接合されており、スリット部が開いたり閉じたりしてもシール材６７は柔軟性があるため、変形に追従することができ、カバー部材６０が割れることもなく密閉性を保持できる。従って、もしスリット部のシールが切れても、カバー部で空気が流通することを防止できる。   Further, in the present embodiment, the wing portions 63a and 63b of the cover member 60 are joined to the connection member 40 with the sealing material 67, and the sealing material 67 is flexible even when the slit portion is opened or closed. It is possible to follow the deformation and to maintain the airtightness without breaking the cover member 60. Therefore, even if the seal of the slit portion is broken, air can be prevented from flowing through the cover portion.

またスリット５０には、シール材５３が充填されているから、スリット５０を通して断熱材充填空間３０の内外を空気が流通することが防がれる。シール材５３は柔軟性があるから、スリット５０が開いたり閉じたりしてもこの変化に追従することができ、スリット５０を通して断熱材充填空間３０の内外を空気が流通することが防がれる。
また何らかの理由によって、シール材５３が切れても、スリット５０の正面にカバー部材６０が設けられているので、ある程度の気密性は確保できる。 Further, since the slit 50 is filled with the sealing material 53, air is prevented from flowing through the slit 50 inside and outside the heat insulating material filling space 30. Since the sealing material 53 is flexible, it can follow this change even when the slit 50 opens or closes, and the air is prevented from flowing through the slit 50 inside and outside the heat insulating material filling space 30.
Even if the sealing material 53 is cut for some reason, the cover member 60 is provided in front of the slit 50, so that a certain degree of airtightness can be secured.

上記した実施形態では、カバー部材６０でスリット５０を覆い隠す構成を採用したが、カバー部材６０は必須ではなく、省略してもよい。
上記した実施形態では、接続部材４０の四隅にスリット５０を設けたが、必ずしも全ての角にスリット５０を設ける必要はない。またスリット５０の位置は、角に限定されるものではなく、辺部であってもよい。
本実施形態では、スリット５０を内壁部材２６側に寄った位置に設けた。この理由は、内側筐体２２が高温や低温に晒されるので、変形しやすく、内側筐体２２の変形に追従させるためにスリット５０を内壁部材２６側に寄った位置に設けたものである。しかしながら本発明は、この構成に限定されるものではなく、スリット５０を内壁部材２６の近傍と外壁部材２７の近傍の双方に設けてもよく、外壁部材２７の近傍だけに設けてもよい。
またスリット５０は、必ずしも、一端が開放されていなくてもよい。 In the above-described embodiment, the configuration is adopted in which the slit 50 is covered by the cover member 60, but the cover member 60 is not essential and may be omitted.
In the above-described embodiment, the slits 50 are provided at the four corners of the connection member 40, but the slits 50 need not always be provided at all corners. The position of the slit 50 is not limited to a corner, but may be a side.
In the present embodiment , the slit 50 is provided at a position closer to the inner wall member 26 side. The reason for this is that the inner casing 22 is exposed to high or low temperature and thus easily deformed, and the slit 50 is provided at a position closer to the inner wall member 26 in order to follow the deformation of the inner casing 22. However, the present invention is not limited to this configuration, and the slit 50 may be provided both in the vicinity of the inner wall member 26 and in the vicinity of the outer wall member 27, or may be provided only in the vicinity of the outer wall member 27.
Further, the slit 50 does not necessarily have to be open at one end.

またスリット５０に代わって、図９、図１０の様に切り欠き７０を設けても応力の緩和に寄与する。
図９に示す態様では、切り欠き７０とネジ挿通孔５１が分離している。図１０に示す態様は、切り欠き７１がより深く、ネジ挿通孔部７２と一体に繋がっている。 In addition, providing the notch 70 instead of the slit 50 as shown in FIGS.
In the embodiment shown in FIG. 9, the notch 70 and the screw insertion hole 51 are separated. In the embodiment shown in FIG. 10, the notch 71 is deeper and is integrally connected to the screw insertion hole 72.

以上説明した実施形態では、接続部材４０の角の部位にネジ挿通孔５１やネジ挿通孔部７２を設けてカバー部材６０を固定したが、ネジ挿通孔５１やネジ挿通孔部７２の位置は限定されるものではなく、他の部位であってもよい。またカバー部材６０の固定方法や、接続部材４０の固定方法は、ネジに限定されるものではなく、鋲等の他の締結要素を採用してもよい。また締結要素によらず、接着剤や半田等によって固定してもよい。   In the embodiment described above, the cover member 60 is fixed by providing the screw insertion holes 51 and the screw insertion holes 72 at corners of the connection member 40. However, the positions of the screw insertion holes 51 and the screw insertion holes 72 are limited. It is not limited to this, and may be another site. The method of fixing the cover member 60 and the method of fixing the connecting member 40 are not limited to screws, and other fastening elements such as tacks may be employed. Further, instead of the fastening element, it may be fixed by an adhesive or solder.

１ 環境試験装置
２ 断熱壁
５ 試験室
１７ 開口部
２０ 扉部材
２１ 試験室本体
２２ 内側筐体
２３ 外側筐体
２５ 断熱材
２６ 内壁部材
２７ 外壁部材
３０ 断熱材充填空間
４０ 接続部材
４１、４２ 縦辺（辺部）
４３、４５ 横辺（辺部）
５０ スリット
５１ ネジ挿通孔
５３ シール材
６０ カバー部材
７０，７１ 切り欠き DESCRIPTION OF SYMBOLS 1 Environmental test apparatus 2 Insulated wall 5 Test room 17 Opening 20 Door member 21 Test room main body 22 Inner case 23 Outer case 25 Heat insulating material 26 Inner wall member 27 Outer wall member 30 Heat insulating material filling space 40 Connecting members 41, 42 Vertical side (Side)
43, 45 Side (side)
Reference Signs List 50 Slit 51 Screw insertion hole 53 Seal material 60 Cover member 70, 71 Notch

Claims (5)

内部に所望の環境を創出可能であって被試験物を配置する試験室を有し、前記試験室は、少なくとも一面に開口部を有する試験室本体と、当該開口部を開閉する扉部材を有し、試験室本体の少なくとも一部は断熱壁で覆われており、試験室本体の開口部の少なくとも一部の断熱壁は、内壁部材と、外壁部材と、断熱材と、接続部材を有し、前記内壁部材と外壁部材の間に形成された空間に前記断熱材が配され、接続部材によって内壁部材と外壁部材が接続されており、前記接続部材は、複数の辺部を有していて中央が開口した枠を構成するものである環境試験装置において、
前記接続部材にスリットまたは切り欠きが形成されていることを特徴とする環境試験装置。 It has a test chamber in which a desired environment can be created and a test object is arranged, and the test chamber has a test chamber main body having an opening on at least one surface, and a door member for opening and closing the opening. At least a part of the test chamber main body is covered with a heat insulating wall, and at least a part of the heat insulating wall of the opening of the test chamber main body has an inner wall member, an outer wall member, a heat insulating material, and a connecting member. The heat insulating material is disposed in a space formed between the inner wall member and the outer wall member, the inner wall member and the outer wall member are connected by a connecting member, and the connecting member has a plurality of sides. In an environmental test device that constitutes a frame whose center is open,
An environmental test apparatus, wherein a slit or a notch is formed in the connection member. スリット又は切り欠きは枠の角の部位にあり、スリット又は切り欠きは、試験室本体の内壁部材側が開口し、外壁部材側が閉塞され、いずれの辺部に対しても斜め方向にのびるものであることを特徴とする請求項１に記載の環境試験装置。   The slit or notch is located at a corner of the frame, and the slit or notch is open at the inner wall member side of the test chamber main body, closed at the outer wall member side, and extends obliquely to any side. The environmental test apparatus according to claim 1, wherein: ネジ挿通孔を有し、当該ネジ挿通孔はスリット又は切り欠きと連通していることを特徴とする請求項１又は２に記載の環境試験装置。   The environmental test apparatus according to claim 1, further comprising a screw insertion hole, wherein the screw insertion hole communicates with the slit or the notch. スリット又は切り欠きにシール部材が充填されていることを特徴とする請求項１乃至３のいずれかに記載の環境試験装置。   The environmental test apparatus according to any one of claims 1 to 3, wherein the slit or the notch is filled with a seal member. スリット又は切り欠きの前面にカバー部材が設けられていることを特徴とする請求項１乃至４のいずれかに記載の環境試験装置。   The environmental test apparatus according to any one of claims 1 to 4, wherein a cover member is provided on a front surface of the slit or the notch.
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