JP2017183367A - Communication device protection case and effect measurement method for communication device protection case - Google Patents
Communication device protection case and effect measurement method for communication device protection case Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 159
- 238000000691 measurement method Methods 0.000 title claims 2
- 230000000694 effects Effects 0.000 title description 4
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
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- 238000000034 method Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 31
- 238000005260 corrosion Methods 0.000 abstract description 31
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 38
- 238000012423 maintenance Methods 0.000 description 11
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 235000002639 sodium chloride Nutrition 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
本発明は、腐食性ガスによる通信装置内の金属の腐食を低減させる通信装置保護ケースおよび通信装置保護ケースの効用測定方法に関する。 The present invention relates to a communication device protection case for reducing corrosion of a metal in a communication device by a corrosive gas and a method for measuring the effectiveness of the communication device protection case.
一般的に、通信装置は、電気信号や光信号を受信/発信する回路や冷却ファン等から構成され、金属材料、樹脂等の有機材料、ガラスなどの無機材料が利用されている。 In general, a communication device includes a circuit that receives / transmits an electric signal or an optical signal, a cooling fan, and the like, and uses an organic material such as a metal material or a resin, or an inorganic material such as glass.
これらの材料のうち金属材料では、装置内に入る大気成分によって腐食等が発生する可能性があり、屋外や気密性の悪い環境に設置される通信装置において金属材料の腐食が原因となって故障するなどのケースが報告されている。 Among these materials, in the case of metallic materials, corrosion may occur due to atmospheric components entering the device, and failure may occur due to corrosion of metallic materials in communication devices installed outdoors or in poorly airtight environments. Some cases have been reported.
特に、海岸から近いエリアや工場地帯、温泉地等に近いエリアでは、大気中に金属の腐食原因となる成分が多く含まれる可能性があり、通信装置の使用については厳しい環境になるケースが多い。さらに、集合住宅や工場等において通信装置専用の専用スペースを設けるような場合、専用スペースに設置された換気扇などの影響等で気密性が悪く、通信装置が外気に常に曝され故障が早期に発生する場合があった。 In particular, areas close to the coast, areas close to factories, hot springs, etc. may contain a lot of components that cause metal corrosion in the atmosphere, and there are many cases where the use of communication devices becomes harsh. . In addition, when a dedicated space dedicated to communication devices is provided in an apartment house or factory, etc., the airtightness is poor due to the influence of a ventilation fan installed in the dedicated space, and the communication device is constantly exposed to the outside air, causing failure early. There was a case.
この解決策の有効な例としては、専用スペースの換気扇などに海塩粒子の浸入を防ぐ塩害フィルタを設置したり、専用スペースの入り口を2重扉にしたり、脱硫装置（非特許文献１参照）を設置したりするなどの対策が採られてきた。 As an effective example of this solution, a salt damage filter that prevents intrusion of sea salt particles is installed on a ventilation fan in a dedicated space, a double door is used for the entrance of the dedicated space, or a desulfurization device (see Non-Patent Document 1). Measures such as setting up have been taken.
すなわち、通信装置周辺において、金属腐食の原因となる物質の除去や低減が図られてきた。
しかしながら、既存例では、それぞれ、次のような課題が生じている。
That is, removal and reduction of substances that cause metal corrosion have been attempted around communication devices.
However, in the existing examples, the following problems arise, respectively.
すなわち、塩害フィルタなどを設置する対策では、フィルタの設置箇所以外から流入した腐食因子による影響を抑制することはできない。 That is, in the measure for installing a salt damage filter or the like, it is not possible to suppress the influence of the corrosive factor flowing in from other than the filter installation location.
専用スペースの入り口を2重扉にする対策では、作業者と共に流入する腐食因子を低減することはできない。また、専用スペースの広さや構造によって2重扉への変更が難しい場合がある。 The countermeasures that use double doors at the entrance of the dedicated space cannot reduce the corrosion factors that flow with the workers. In addition, it may be difficult to change to double doors depending on the size and structure of the dedicated space.
脱硫装置などを設置する対策については、脱硫装置が大型のため専用スペースの広さや構造、また、導入価格やランニングコストが高いという課題がある。 As a countermeasure for installing a desulfurization device, there are problems that the desulfurization device is large and the space and structure of a dedicated space, and the introduction price and running cost are high.
また、腐食を低減させるには、例えば、通信装置に腐食しにくい材料や使用したり、腐食しにくい構造を採用することが考えられる。しかし、これでは、通信装置がコストアップするという課題がある。 In order to reduce the corrosion, for example, it is conceivable to use a material that does not corrode or a structure that does not corrode easily for the communication device. However, this has a problem that the cost of the communication apparatus increases.
また、例えば、密閉された空間に通信装置を設置すれば腐食は防げるが、通信装置のメンテナンスができない。また、本当に腐食が低減されているかを確認できない。よって、例えば、通信装置が突然故障する可能性があってもその判断ができないという課題がある。 For example, if a communication device is installed in a sealed space, corrosion can be prevented, but maintenance of the communication device cannot be performed. Moreover, it cannot be confirmed whether corrosion is really reduced. Therefore, for example, there is a problem that even if there is a possibility that the communication apparatus suddenly fails, the determination cannot be made.
本発明は、上記の課題に鑑みてなされたものであり、その目的とするところは、腐食性ガスが存在する環境に設置される通信装置で使用される金属の腐食を容易に低減させる技術および腐食低減の効用測定方法を提供することにある。 The present invention has been made in view of the above-described problems, and the object of the present invention is a technique for easily reducing corrosion of a metal used in a communication device installed in an environment where corrosive gas exists. The object is to provide a method for measuring the effectiveness of reducing corrosion.
上記の課題を解決するために、本発明の通信装置保護ケースは、通信装置の金属を腐食させる腐食性ガスが存在する環境に設置され、前記通信装置を収納する本体部と、前記通信装置を前記本体部に出し入れ可能にする蓋部とを備え、前記腐食性ガスを吸着する腐食性ガス吸着部材が、前記本体部に収納された前記通信装置と前記本体部の間に配置されることを特徴とする。 In order to solve the above problems, a communication device protective case of the present invention is installed in an environment where corrosive gas that corrodes the metal of the communication device is present, and includes a main body portion that houses the communication device, and the communication device. A lid that allows the main body to be taken in and out, and a corrosive gas adsorbing member that adsorbs the corrosive gas is disposed between the communication device housed in the main body and the main body. Features.
本発明の通信装置保護ケースの効用測定方法は、前記通信装置を収納した前記通信装置保護ケースと当該通信装置の隙間に第１のプリント配線板を配置し、前記通信装置保護ケース外に第２のプリント配線板を配置し、前記第１および第２のプリント配線板における金属の状態を目視で比較することを特徴とする。 In the method for measuring the effectiveness of a communication device protection case according to the present invention, a first printed wiring board is disposed in a gap between the communication device protection case housing the communication device and the communication device, and a second outside the communication device protection case. The printed wiring boards are arranged, and the state of the metal in the first and second printed wiring boards is visually compared.
本発明の別の通信装置保護ケースの効用測定方法は、前記通信装置を収納した前記通信装置保護ケースと当該通信装置の隙間にプリント配線板を配置し、前記プリント配線板のプリント配線パターンに接続した導線を前記通信装置保護ケース外に引き出し、前記引き出した導線により前記プリント配線パターンの電気抵抗を測定することを特徴とする。 Another method for measuring the effectiveness of a communication device protection case according to the present invention is to place a printed wiring board in a gap between the communication device protection case housing the communication device and the communication device, and connect to the printed wiring pattern of the printed wiring board. The drawn conductive wire is drawn out of the communication device protection case, and the electrical resistance of the printed wiring pattern is measured by the drawn conductive wire.
本発明によれば、腐食性ガスが存在する環境に設置される通信装置で使用される金属の腐食を容易に低減させる技術および腐食低減の効用測定方法を提供できる。 According to the present invention, it is possible to provide a technique for easily reducing corrosion of a metal used in a communication device installed in an environment where a corrosive gas exists, and a method for measuring the effectiveness of reducing corrosion.
以下、本発明の実施の形態について図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１は、本実施の形態の通信装置保護ケースと通信装置の一例を示す図である。 FIG. 1 is a diagram illustrating an example of a communication device protection case and a communication device according to the present embodiment.
通信装置保護ケース１は、通信装置２を収納する本体部１１と、通信装置２を本体部１１に出し入れ可能にする蓋部１２とを備え、腐食性ガスを吸着する腐食性ガス吸着部材１５が、本体部１１に収納された通信装置２と本体部１１の間に配置される。 The communication device protective case 1 includes a main body portion 11 that houses the communication device 2 and a lid portion 12 that enables the communication device 2 to be inserted into and removed from the main body portion 11, and a corrosive gas adsorbing member 15 that adsorbs corrosive gas is provided. The communication device 2 accommodated in the main body 11 and the main body 11 are disposed.
例えば、本体部１１の奥行は２００ｍｍ程度、幅は１００ｍｍ程度、高さは３００ｍｍ程度である。なお、この寸法は一例であり、通信装置保護ケース１は、通信装置２の大きさに合わせて製作すればよい。 For example, the depth of the main body 11 is about 200 mm, the width is about 100 mm, and the height is about 300 mm. Note that this dimension is an example, and the communication device protection case 1 may be manufactured according to the size of the communication device 2.
通信装置２の電源コードや通信線にはブッシュ１３が嵌められ、本体部１１に通信装置２を収納し、本体部１１と蓋部１２の合わせ目にブッシュ１３を配置し、蓋部１２を閉める。これにより、蓋部１２を閉めた状態であっても、電源コードからの給電、通信線による信号送受信が可能となっている。 A bush 13 is fitted to the power cord or communication line of the communication device 2, the communication device 2 is accommodated in the main body 11, the bush 13 is arranged at the joint of the main body 11 and the lid 12, and the lid 12 is closed. . Thereby, even when the lid 12 is closed, power supply from the power cord and signal transmission / reception via the communication line are possible.
腐食性ガス吸着部材１５は、例えば、腐食性ガスを吸着する粉末や粒子（例えば活性炭など）を内包する紙袋であってもよい。 The corrosive gas adsorbing member 15 may be, for example, a paper bag containing powder or particles (for example, activated carbon) that adsorb corrosive gas.
このように通信装置２と腐食性ガス吸着部材１５を収納し、蓋部１２を閉めた通信装置保護ケース１は、通信装置２の金属を腐食させる腐食性ガスが存在する環境に設置される。例えば、通信局などの中には、このように腐食性ガスが発生する環境に建てられるものもあり、通信装置保護ケース１は、このような通信局で使用される通信装置２を収納する。 The communication device protection case 1 in which the communication device 2 and the corrosive gas adsorbing member 15 are housed in this way and the lid 12 is closed is installed in an environment where corrosive gas that corrodes the metal of the communication device 2 exists. For example, some communication stations are built in such an environment where corrosive gas is generated, and the communication device protection case 1 houses the communication device 2 used in such a communication station.
腐食性ガスは、例えば、硫化水素や塩素を含む。仮に通信装置２に使用されるプリント配線板を腐食性ガスが存在する環境に放置すれば、プリント配線板を構成する銅などの配線が急速に腐食する。また、その他の金属であっても、腐食性ガスの種類によっては、急速に腐食する。 The corrosive gas includes, for example, hydrogen sulfide and chlorine. If a printed wiring board used in the communication device 2 is left in an environment where corrosive gas exists, wiring such as copper constituting the printed wiring board is rapidly corroded. Also, other metals corrode rapidly depending on the type of corrosive gas.
しかしながら、本実施の形態では、通信装置２は、通信装置保護ケース１に収納され、腐食性ガス吸着部材１５が通信装置２と本体部１１の間に配置されるので、通信装置保護ケース１内の腐食性ガスの濃度は通信装置保護ケース１外の濃度より低くなり、プリント基板の配線のような金属の腐食を容易に低減できる。 However, in the present embodiment, the communication device 2 is housed in the communication device protection case 1 and the corrosive gas adsorbing member 15 is disposed between the communication device 2 and the main body 11. The concentration of the corrosive gas is lower than the concentration outside the communication device protective case 1, and the corrosion of the metal such as the wiring of the printed circuit board can be easily reduced.
また、蓋部１２を開ければ、その状態で、または、通信装置２を取り出して、通信装置２のメンテナンスを行うことができる。 If the lid 12 is opened, the communication device 2 can be maintained in that state or by removing the communication device 2.
図２は、好ましい実施例の通信装置保護ケース１を側面側から見た図である。 FIG. 2 is a view of the communication device protective case 1 of the preferred embodiment as viewed from the side.
例えば、本体部１１又は蓋部１２の少なくとも一部が透明に構成される。例えば、本体部１１と蓋部１２とが全て透明なアクリル板などで構成される。そして、通信装置２を収納した通信装置保護ケース１と通信装置２の隙間にプリント配線板１４が配置される。これにより、プリント配線板１４を通信装置保護ケース１の外部から視認することができる。 For example, at least a part of the main body 11 or the lid 12 is configured to be transparent. For example, the main body 11 and the lid 12 are all made of a transparent acrylic plate or the like. And the printed wiring board 14 is arrange | positioned in the clearance gap between the communication apparatus protective case 1 which accommodated the communication apparatus 2, and the communication apparatus 2. FIG. Thereby, the printed wiring board 14 can be visually recognized from the outside of the communication device protective case 1.
なお、通信装置保護ケース１の一部を透明にした場合、プリント配線板１４は、透明な部分を通して視認可能に位置に配置される。 When a part of the communication device protection case 1 is made transparent, the printed wiring board 14 is disposed at a position so as to be visible through the transparent part.
通信装置保護ケース１の効用を測定するには、例えば、通信装置２の保守者が、このようなプリント配線板１４における銅のプリント配線パターンなどを、通信装置２を使用しつつ、例えば、定期的に目視で確認する。 In order to measure the utility of the communication device protection case 1, for example, a maintenance person of the communication device 2 uses a copper printed wiring pattern on the printed wiring board 14 while using the communication device 2, for example, periodically. Check visually.
例えば、プリント配線パターンの腐食が少なければ、通信装置保護ケース１が効用を発揮していることとなる。よって、腐食により通信装置２が突然故障する可能性は低いと判断できる。 For example, if the corrosion of the printed wiring pattern is small, the communication device protective case 1 is effective. Therefore, it can be determined that the possibility that the communication device 2 suddenly fails due to corrosion is low.
一方、プリント配線パターンの腐食が多い場合、例えば、図らずも通信装置保護ケース１に孔などが空き、腐食性ガスが多く進入している可能性や腐食性ガス吸着部材１５の効用が低い可能性がある。この場合には、通信装置２の故障の可能性が高まるので、通信装置保護ケース１の修理などの善後策を講じることができる。 On the other hand, when there is a lot of corrosion of the printed wiring pattern, for example, there is a possibility that the communication device protective case 1 has a hole or the like, and a lot of corrosive gas has entered or the utility of the corrosive gas adsorbing member 15 is low. There is sex. In this case, since the possibility of failure of the communication device 2 increases, it is possible to take good measures such as repair of the communication device protection case 1.
図３（ａ）は、通信装置保護ケース１に収納する前のプリント配線板１４の状態を示し、図３（ｂ）は、通信装置保護ケース１に入れて２２３３時間（９３日）経過後のプリント配線板１４の状態を示し、図３（ｃ）は、通信装置保護ケース１に収納せず、腐食性ガスの中に放置し、２２３３時間（９３日）経過後のプリント配線板１４の状態を示す。 3A shows the state of the printed wiring board 14 before being housed in the communication device protection case 1, and FIG. 3B shows the state after 2233 hours (93 days) have passed since the communication device protection case 1 was placed. The state of the printed wiring board 14 is shown. FIG. 3C shows the state of the printed wiring board 14 after 2233 hours (93 days) after being left in a corrosive gas without being stored in the communication device protective case 1. Indicates.
図３（ａ）のプリント配線板１４におけるプリント配線パターンには、図３（ｂ）や（ｃ）に見られる黒い部分（腐食部分）が見られない。 In the printed wiring pattern on the printed wiring board 14 in FIG. 3A, the black portion (corrosion portion) seen in FIGS. 3B and 3C is not seen.
一方、図３（ｂ）や（ｃ）には、黒い部分（腐食部分）が見られるが、その面積は、（ｂ）の方が少ない。 On the other hand, although a black part (corrosion part) is seen in FIG.3 (b) and (c), the area is smaller in (b).
通信装置保護ケース１に腐食性ガスが進入するが、通信装置保護ケース１内の腐食性ガスの濃度は外部における腐食性ガスの濃度より低く、通信装置保護ケース１や腐食性ガス吸着部材１５が効用を発揮していると考えられる。 Although the corrosive gas enters the communication device protection case 1, the concentration of the corrosive gas in the communication device protection case 1 is lower than the concentration of the corrosive gas outside, and the communication device protection case 1 and the corrosive gas adsorbing member 15 It is thought that the utility is demonstrated.
例えば、通信装置２の保守者がこのような効用を確認するためには、予め、通信装置２を収納した通信装置保護ケース１と通信装置２の隙間にプリント配線板１４（第１のプリント配線板）を配置し、通信装置保護ケース１外に別のプリント配線板１４（第２のプリント配線板）を配置する。こうすれば、第１のプリント配線板は、図３（ｂ）のように変化し、第２のプリント配線板は、図３（ｃ）のように変化する。 For example, in order for the maintenance person of the communication device 2 to confirm such utility, the printed wiring board 14 (first printed wiring board) is previously provided in the gap between the communication device protection case 1 housing the communication device 2 and the communication device 2. Board) and another printed wiring board 14 (second printed wiring board) is arranged outside the communication device protection case 1. If it carries out like this, a 1st printed wiring board will change like FIG.3 (b), and a 2nd printed wiring board will change like FIG.3 (c).
例えば、通信装置保護ケース１の一部が透明な場合、保守者は、その透明な部分を通して、第１のプリント配線板を目視する。保守者は、第２のプリント配線板を、通信装置保護ケース１外において直接目視する。そして、保守者は、第１および第２のプリント配線板における金属の配線の状態を目視で比較する。 For example, when a part of the communication device protection case 1 is transparent, the maintenance person visually observes the first printed wiring board through the transparent part. The maintenance person directly looks at the second printed wiring board outside the communication device protection case 1. Then, the maintenance person visually compares the state of the metal wiring on the first and second printed wiring boards.
例えば、第１のプリント配線板（図３（ｂ））の方が、第２のプリント配線板（図３（ｃ））よりもプリント配線パターンの腐食が少なければ、通信装置保護ケース１や腐食性ガス吸着部材１５が効用を発揮しており、腐食により通信装置２が突然故障する可能性は低いと判断できる。 For example, if the first printed wiring board (FIG. 3B) has less corrosion of the printed wiring pattern than the second printed wiring board (FIG. 3C), the communication device protective case 1 or corrosion It can be determined that the possibility of sudden failure of the communication device 2 due to corrosion is low because the reactive gas adsorbing member 15 is in effect.
一方、プリント配線パターンの腐食が同等の場合、前述のように、図らずも通信装置保護ケース１に腐食性ガスが多く進入している可能性や腐食性ガス吸着部材１５の効用が低い可能性がある。この場合には、通信装置２の故障の可能性が高まるので、通信装置保護ケース１の修理などの善後策を講じることができる。 On the other hand, when the corrosion of the printed wiring pattern is equivalent, as described above, there is a possibility that a lot of corrosive gas has entered into the communication device protective case 1 or the utility of the corrosive gas adsorbing member 15 is low. There is. In this case, since the possibility of failure of the communication device 2 increases, it is possible to take good measures such as repair of the communication device protection case 1.
なお、通信装置保護ケース１に透明な部分がない場合、保守者は、第１のプリント配線板（図３（ｂ））を通信装置保護ケース１から出し、目視により、第２のプリント配線板（図３（ｃ））と比較すればよい。よって、透明な部分はなくても同様の判断が行える。 When the communication device protection case 1 does not have a transparent portion, the maintenance person takes out the first printed wiring board (FIG. 3B) from the communication device protection case 1 and visually checks the second printed wiring board. What is necessary is just to compare with (FIG.3 (c)). Therefore, the same determination can be made even if there is no transparent portion.
また、通信装置保護ケース１に透明な部分があるないに関わらず、その効用を確認すべく、以下のようにしてもよい。 In addition, regardless of whether the communication device protection case 1 has a transparent portion, the following may be performed in order to confirm the utility.
保守者は、プリント配線板のプリント配線パターンに所定の間隔をおいて２つの導線の一方端を接続する。そして、通信装置保護ケース１内の通信装置２と通信装置保護ケース１の隙間にプリント配線板を配置し、各導線の他方端は通信装置保護ケース１外に引き出しておく。 The maintenance person connects one end of the two conductive wires to the printed wiring pattern of the printed wiring board at a predetermined interval. And a printed wiring board is arrange | positioned in the clearance gap between the communication apparatus 2 and the communication apparatus protection case 1 in the communication apparatus protection case 1, and the other end of each conducting wire is pulled out of the communication apparatus protection case 1.
そして、保守者は、例えば、定期的に、通信装置保護ケース１外で、各導線の他方端間の電気抵抗、すなわち、通信装置保護ケース１内に配置したプリント配線板のプリント配線パターンの電気抵抗を測定する。 The maintenance person, for example, periodically, outside the communication device protection case 1, the electrical resistance between the other ends of the respective conductors, that is, the electrical wiring pattern printed on the printed wiring board disposed in the communication device protection case 1. Measure resistance.
電気抵抗が当初と同等なら、通信装置保護ケース１や腐食性ガス吸着部材１５が効用を発揮しており、通信装置２が突然故障する可能性は低いと判断できる。 If the electrical resistance is equal to the initial value, it can be determined that the communication device protection case 1 and the corrosive gas adsorbing member 15 are in effect, and the communication device 2 is unlikely to fail suddenly.
一方、プリント配線パターンの電気抵抗は腐食により増加するので、電気抵抗が当初より増加していた場合、前述のように、図らずも通信装置保護ケース１に腐食性ガスが多く進入している可能性や腐食性ガス吸着部材１５の効用が低い可能性がある。この場合には、通信装置２の故障の可能性が高まるので、通信装置保護ケース１の修理などの善後策を講じることができる。 On the other hand, since the electrical resistance of the printed wiring pattern increases due to corrosion, if the electrical resistance has increased from the beginning, as described above, a large amount of corrosive gas may have entered the communication device protective case 1 unexpectedly. And the utility of the corrosive gas adsorbing member 15 may be low. In this case, since the possibility of failure of the communication device 2 increases, it is possible to take good measures such as repair of the communication device protection case 1.
または、以下のようにプリント配線板の絶縁抵抗を測定し、絶縁抵抗により、通信装置保護ケース１の効用を確認してもよい。 Alternatively, the insulation resistance of the printed wiring board may be measured as follows, and the utility of the communication device protection case 1 may be confirmed by the insulation resistance.
保守者は、プリント配線板において絶縁された２つのプリント配線パターンに１対１で２つの導線の一方端を接続する。そして、通信装置保護ケース１内の通信装置２と通信装置保護ケース１の隙間にプリント配線板を配置し、各導線の他方端は通信装置保護ケース１外に引き出しておく。 A maintenance person connects one end of two conducting wires on a one-to-one basis to two printed wiring patterns insulated on the printed wiring board. And a printed wiring board is arrange | positioned in the clearance gap between the communication apparatus 2 and the communication apparatus protection case 1 in the communication apparatus protection case 1, and the other end of each conducting wire is pulled out of the communication apparatus protection case 1.
そして、保守者は、例えば、定期的に、通信装置保護ケース１外で、各導線の他方端間の電気抵抗、すなわち、通信装置保護ケース１内に配置したプリント配線板の絶縁抵抗を測定する。 And a maintenance person measures the electrical resistance between the other ends of each conducting wire, ie, the insulation resistance of the printed wiring board arrange | positioned in the communication apparatus protection case 1, regularly, for example outside the communication apparatus protection case 1. .
絶縁抵抗が当初と同等なら、通信装置保護ケース１や腐食性ガス吸着部材１５が効用を発揮しており、通信装置２が突然故障する可能性は低いと判断できる。 If the insulation resistance is equal to the initial value, it can be determined that the communication device protection case 1 and the corrosive gas adsorbing member 15 are in effect, and the communication device 2 is unlikely to break down suddenly.
一方、２つのプリント配線パターン間に腐食が発生すると、腐食により生成された生成物によりプリント配線パターン間の絶縁抵抗が低下するので、絶縁抵抗が当初より低下していた場合、前述のように、図らずも通信装置保護ケース１に腐食性ガスが多く進入している可能性や腐食性ガス吸着部材１５の効用が低い可能性がある。この場合には、通信装置２の故障の可能性が高まるので、通信装置保護ケース１の修理などの善後策を講じることができる。 On the other hand, when corrosion occurs between the two printed wiring patterns, the insulation resistance between the printed wiring patterns decreases due to the product generated by the corrosion, so when the insulation resistance has decreased from the beginning, as described above, Unexpectedly, there is a possibility that a lot of corrosive gas has entered the communication device protection case 1 and the utility of the corrosive gas adsorbing member 15 may be low. In this case, since the possibility of failure of the communication device 2 increases, it is possible to take good measures such as repair of the communication device protection case 1.
以上のように、本実施の形態の通信装置保護ケースによれば、腐食性ガスが存在する環境に設置される通信装置で使用される金属の腐食を容易に低減できる。 As described above, according to the communication device protection case of the present embodiment, it is possible to easily reduce the corrosion of the metal used in the communication device installed in an environment where corrosive gas exists.
また、本実施の形態の腐食低減の効用測定方法によれば、腐食性ガスが存在する環境に設置される通信装置で使用される金属の腐食低減の効用を測定できる。 Further, according to the method for measuring the utility of reducing corrosion according to the present embodiment, it is possible to measure the utility of reducing the corrosion of a metal used in a communication device installed in an environment where corrosive gas exists.
したがって、塩害フィルタ、専用スペースの2重扉、脱硫装置などが不要となる。 Therefore, a salt damage filter, a double door with a dedicated space, a desulfurization device, and the like are not required.
１ 通信装置保護ケース
２ 通信装置
１１ 本体部
１２ 蓋部
１４ プリント配線板
１５ 腐食性ガス吸着部材
DESCRIPTION OF SYMBOLS 1 Communication apparatus protective case 2 Communication apparatus 11 Main body part 12 Cover part 14 Printed wiring board 15 Corrosive gas adsorption member
Claims (5)
前記腐食性ガスを吸着する腐食性ガス吸着部材が、前記本体部に収納された前記通信装置と前記本体部の間に配置される
ことを特徴とする通信装置保護ケース。 Installed in an environment where corrosive gas that corrodes the metal of the communication device exists, and includes a main body portion that houses the communication device, and a lid portion that allows the communication device to be taken in and out of the main body portion,
The communication device protective case, wherein the corrosive gas adsorbing member that adsorbs the corrosive gas is disposed between the communication device housed in the main body and the main body.
前記通信装置を収納した前記通信装置保護ケースと当該通信装置の隙間であり且つ前記透明な部分を通して視認可能に位置に、前記腐食性ガスにより腐食する金属を含むプリント配線板を配置した
ことを特徴とする請求項１記載の通信装置保護ケース。 At least a part of the main body or the lid is transparent,
A printed wiring board containing a metal corroded by the corrosive gas is disposed at a position that is a gap between the communication device protection case housing the communication device and the communication device and is visible through the transparent portion. The communication device protective case according to claim 1.
前記通信装置を収納した前記通信装置保護ケースと当該通信装置の隙間に第１のプリント配線板を配置し、
前記通信装置保護ケース外に第２のプリント配線板を配置し、
前記第１および第２のプリント配線板における金属の状態を目視で比較する
ことを特徴とする通信装置保護ケースの効用測定方法。 A method for measuring the utility of a communication device protective case according to claim 1,
A first printed wiring board is arranged in a gap between the communication device protection case housing the communication device and the communication device,
Arranging a second printed wiring board outside the communication device protection case;
The method for measuring the utility of a communication device protective case, wherein the metal states of the first and second printed wiring boards are compared visually.
前記第１のプリント配線板における金属の状態を前記透明な部分を通して目視する
ことを特徴とする請求項３記載の通信装置保護ケースの効用測定方法。 At least a part of the main body or the lid is transparent,
The utility measurement method for a communication device protective case according to claim 3, wherein the metal state of the first printed wiring board is visually observed through the transparent portion.
前記通信装置を収納した前記通信装置保護ケースと当該通信装置の隙間にプリント配線板を配置し、前記プリント配線板のプリント配線パターンに接続した導線を前記通信装置保護ケース外に引き出し、前記引き出した導線により前記プリント配線パターンの電気抵抗または前記プリント配線板の絶縁抵抗を測定する
ことを特徴とする通信装置保護ケースの効用測定方法。 A method for measuring the utility of a communication device protective case according to claim 1,
A printed wiring board is arranged in a gap between the communication device protection case housing the communication device and the communication device, and a lead wire connected to the printed wiring pattern of the printed wiring board is drawn out of the communication device protection case, and the drawn out A method for measuring the utility of a communication device protective case, wherein the electrical resistance of the printed wiring pattern or the insulation resistance of the printed wiring board is measured by a conductive wire.
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| JPS59192877U (en) * | 1983-06-10 | 1984-12-21 | 富士通電装株式会社 | Protective enclosure for outdoor equipment |
| JPH06140771A (en) * | 1992-10-23 | 1994-05-20 | Nec Corp | Casing structure of outdoor communication apparatus |
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