JP2741421B2 - Waterproof cap for transceiver - Google Patents
Waterproof cap for transceiverInfo
- Publication number
- JP2741421B2 JP2741421B2 JP2175652A JP17565290A JP2741421B2 JP 2741421 B2 JP2741421 B2 JP 2741421B2 JP 2175652 A JP2175652 A JP 2175652A JP 17565290 A JP17565290 A JP 17565290A JP 2741421 B2 JP2741421 B2 JP 2741421B2
- Authority
- JP
- Japan
- Prior art keywords
- nose
- transceiver
- chamber
- front chamber
- waterproof cap
- 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 - Fee Related
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Casings For Electric Apparatus (AREA)
- Optical Communication System (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、コンピユーター間の光信号を発光，受光
するトランシーバの開口部を栓する防水キヤツプに関す
るものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof cap for plugging an opening of a transceiver that emits and receives an optical signal between computers.
近年、コンピユーターが各技術分野において、大量に
採用されるようになつており、各コンピユーター間の通
信の頻度が高くなつている。このような各コンピユータ
ー間の通信は、最近では光通信によつて行われるように
なつている。すなわち、コンピユーター内では、電気信
号が用いられているが、他のコンピユーターとの通信
は、上記電気信号を光信号に変えて、出力することが行
われている。また、他のコンピユーターからの光信号
は、光信号を電気信号に変えて入力することがなされて
いる。トランシーバは、このような電気信号と光信号と
の変換素子であり、各コンピユーターの入出力部に付設
されている。2. Description of the Related Art In recent years, computers have been widely adopted in various technical fields, and the frequency of communication between the computers has increased. Such communication between the computers has recently been performed by optical communication. That is, an electric signal is used in a computer, but communication with another computer is performed by converting the electric signal into an optical signal and outputting the optical signal. Also, optical signals from other computers are converted into electrical signals and input. The transceiver is a conversion element between such an electric signal and an optical signal, and is attached to an input / output unit of each computer.
この種のトランシーバは、第６図に示すように、硬質
プラスチツク製の四角筒状ケーシング１の内部を中央隔
壁２により前室３と後室４に二分割し、後室４内に電気
信号と光信号との変換機能を有する半導体素子（図示せ
ず）を収容し、表面の蓋（図示せず）を閉じて密封する
ようになつている。この半導体素子は挿入ピン（図示せ
ず）がトランシーバの裏面から突出しており、ピンの挿
入によりコンピユーターに接続される。そして、上記中
央隔壁２の前室３側の部分には、第７図に示すように、
電気信号を光信号に変換して出力するための筒状発光素
子ノーズ部５が突設されているとともに光信号を電気信
号に変換して入力するため筒状受光素子ノーズ部６が突
設されている。そして、両ノーズ部5,6の根元側には、
それぞれ溝部5a,6aが形成されている。なお、第６図に
おいて、８はトランシーバ取付用のピン、９はコネクタ
プラグとのラツチ用の窓部である。16はコンピユーター
内基板と電気信号の変換を行うリードピンであり、コン
ピユーター内基板とトランシーバとの接続はこのリード
ピン16と取付用のピン８を基板にハンダ付けすることに
より行われている。このハンダ付けの際に一般にぬれ性
向上のためにフラツクスを使用するが、このフラツクス
の残留は電子部品に悪影響を及ぼすため、通常フロンや
水により洗浄される。As shown in FIG. 6, this type of transceiver divides the inside of a rectangular plastic casing 1 made of a hard plastic into two parts, a front chamber 3 and a rear chamber 4 by a central partition wall 2. A semiconductor element (not shown) having a function of converting an optical signal is accommodated therein, and a lid (not shown) on the surface is closed and hermetically sealed. This semiconductor device has an insertion pin (not shown) protruding from the back surface of the transceiver, and is connected to a computer by inserting the pin. As shown in FIG. 7, a portion of the central partition wall 2 on the side of the front chamber 3 is
A cylindrical light emitting element nose portion 5 for converting an electric signal into an optical signal and outputting the same is projected, and a cylindrical light receiving element nose portion 6 for converting an optical signal into an electric signal and inputting the same. ing. And, on the base side of both nose parts 5,6,
Grooves 5a and 6a are formed respectively. In FIG. 6, reference numeral 8 denotes a pin for attaching a transceiver, and 9 denotes a window for latching with a connector plug. Reference numeral 16 denotes a lead pin for converting an electric signal with the board in the computer. The connection between the board in the computer and the transceiver is performed by soldering the lead pin 16 and the mounting pin 8 to the board. When soldering, a flux is generally used to improve the wettability, but the residual flux has an adverse effect on electronic components, and is usually washed with freon or water.
しかしながら、この洗浄の際にフラツクスを含んだフ
ロンや水がノーズ部内に進入，残留し、光入出力を低下
させる問題が生じるため、トランシーバをそのまま洗浄
等に供することはできない。そこで、本発明者は、第６
図に示すように、トランシーバの前室３の入口を硬質ゴ
ム製の防水キヤツプ10の挿入部11の挿入により密封する
ことを着想した。12は操作部、13は滑り止め部、14はノ
ーズ部5,6を収容するノーズ用孔である。しかしなが
ら、この防水キヤツプ10は、硬質ゴム製であり、ゴム材
料の収縮の差等により微妙に寸法が変化する。したがつ
て、ノーズ用孔14の形成位置に微妙にばらつきが生じ、
このばらつきにより、ノーズ用孔14とノーズ部5,6との
密着嵌合状態がばらつき、また、防水キヤツプ10と、ケ
ーシング1,ノーズ部5,6とは材質が異なり、熱膨脹率も
異なることから、材料の膨脹，収縮時にノーズ用孔14と
ノーズ部5,6との密着状態が悪くなり、上記水洗時に水
がノーズ用孔14とノーズ部5,6との間を通り円筒状ノー
ズ部６内に進入しノーズ部内を汚し、光の入出力を低下
させるという問題が生じた。However, during this cleaning, fluorocarbons and water containing flux enter and remain in the nose, causing a problem of lowering the optical input / output, so that the transceiver cannot be directly used for cleaning or the like. Therefore, the present inventor considers the sixth
As shown in the figure, the idea was to seal the entrance of the front chamber 3 of the transceiver by inserting the insertion portion 11 of the waterproof cap 10 made of hard rubber. Reference numeral 12 denotes an operation unit, 13 denotes a non-slip portion, and 14 denotes a nose hole for accommodating the nose portions 5 and 6. However, the waterproof cap 10 is made of hard rubber, and its dimensions are slightly changed due to a difference in shrinkage of the rubber material. Therefore, there is a slight variation in the formation position of the nose hole 14,
Due to this variation, the close fitting state of the nose hole 14 and the nose portions 5 and 6 varies, and the waterproof cap 10 and the casing 1 and the nose portions 5 and 6 are made of different materials and have different thermal expansion rates. When the material expands and contracts, the contact between the nose hole 14 and the nose portions 5 and 6 deteriorates, and water flows between the nose hole 14 and the nose portions 5 and 6 at the time of the above-mentioned water washing, and the cylindrical nose portion 6 and , The inside of the nose portion is contaminated, and the input and output of light is reduced.
この発明は、このような事情に鑑みなされたもので、
トランシーバの水洗等によるフラツクスの除去に際し
て、ノーズ部内に汚水が侵入して光入出力低下を生じさ
せることのないトランシーバ用防水キヤツプの提供をそ
の目的とする。The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a waterproof cap for a transceiver that does not cause sewage to enter the nose portion to cause a decrease in light input / output when removing a flux by washing the transceiver with water.
上記の目的を達成するため、この発明のトランシーバ
用防水キヤツプは、中央隔壁により筒状ケーシング内部
が前室と後室に分割され、後室が半導体素子収容密封室
に形成され、前室側の隔壁に発光素子ノーズ部と受光素
子ノーズ部とが形成されているトランシーバの前室開口
を栓する防水キヤツプであつて、上記前室内に嵌挿され
る弾性挿入部と、その後端に設けられた操作部とを備
え、上記挿入部は、挿入方向に沿つて二股状に分岐さ
れ、一方の分岐部に上記発光素子ノーズ部の外周に密着
嵌合する第１のノーズ用孔が形成されているとともに、
他方の分岐部に受光素子ノーズ部の外周に密着嵌合する
第２のノーズ用孔が形成され、挿入部の根元側の外周が
上記前室の開口の内壁面に密着する密着シール部に形成
されているという構成をとる。In order to achieve the above object, a waterproof cap for a transceiver according to the present invention is characterized in that the inside of a cylindrical casing is divided into a front chamber and a rear chamber by a central partition wall, and a rear chamber is formed in a semiconductor element housing sealed chamber. A waterproof cap for plugging a front chamber opening of a transceiver having a light emitting element nose part and a light receiving element nose part formed on a partition wall, an elastic insertion part fitted into the front chamber, and an operation provided at a rear end thereof. The insertion portion is bifurcated along the insertion direction, and a first nose hole is formed in one of the branch portions so as to closely fit the outer periphery of the light emitting element nose portion. ,
A second nose hole is formed in the other branch portion so as to closely fit the outer periphery of the light receiving element nose portion, and the outer periphery at the base side of the insertion portion is formed in a close contact seal portion which closely adheres to the inner wall surface of the opening of the front chamber. It has a configuration that has been done.
すなわち、この発明のトランシーバ用防水キヤツプ
は、ケーシングの前室開口に挿入する弾性挿入部が、二
股状に分岐され、各分岐部にそれぞれノーズ用孔が形成
されていることから、ノーズ用孔とノーズ部との寸法が
厳密に一致しなくても、二股状に分岐された分岐部自体
の弾性変形により、その誤差を吸収し、ノーズ部とノー
ズ用孔との密着嵌合を良好にする。また、ノーズ部とノ
ーズ用孔と熱膨脹率の差にもとづくノーズ部とノーズ用
孔との密着嵌合状態の悪化も、上記分岐部の弾性変形に
より解消されるようになる。そのうえ、挿入部の根元側
の外周が前室の開口の内周に密着する密着シール部に形
成されていることから、上記水洗の際に圧力が加わつて
も、その密着シール部によつて水の侵入が一次的に防止
される。したがつて、水洗の際に水がノーズ部内に侵入
することがなくなる。That is, in the waterproof cap for a transceiver according to the present invention, the elastic insertion portion to be inserted into the opening of the front chamber of the casing is branched into two branches, and the nose holes are formed in each branch portion. Even if the dimensions of the nose and the nose do not exactly coincide with each other, the error is absorbed by the elastic deformation of the bifurcated branch and the nose and the nose hole are tightly fitted. In addition, the deterioration of the close fitting state between the nose portion and the nose hole due to the difference in the coefficient of thermal expansion between the nose portion and the nose hole can be eliminated by the elastic deformation of the branch portion. In addition, since the outer periphery at the base side of the insertion portion is formed in a close-contact seal portion that is in close contact with the inner periphery of the opening of the front chamber, even if pressure is applied during the above-described water washing, the close-contact seal portion causes water to flow. Is prevented temporarily. Therefore, water does not enter the nose portion during washing.
つぎに実施例について説明する。 Next, examples will be described.
第１図ないし第３図は、この発明の一実施例を示して
いる。すなわち、この実施例のトランシーバ用防水キヤ
ツプ10aは、トランシーバの前室３内に挿入する四角板
状の弾性挿入部11を二股状に分岐させ、一方の分岐部11
aに、発光素子ノーズ部５の外周に密着嵌合する第１の
ノーズ用孔14aを形成するとともに、他方の分岐部11bに
受光素子ノーズ部６に密着嵌合する第２のノーズ用孔14
bを形成している。そして、挿入部11の根元側の外周面
が、第１図および第２図に網目で示すように、前室３の
開口の内壁面に密着する密着シール部15に形成されてい
る。そして、上記両ノーズ用孔14a,14bの内壁面には、
周方向に形成された複数の切り込み溝18が孔の長手方向
に沿つて所定間隔で形成され、溝18と溝18との間の内壁
面の部分が、いわば、Ｏリングの作用をしてノーズ部5,
6の外周に強固に密着し抜け止めするようになつてい
る。1 to 3 show an embodiment of the present invention. That is, the waterproof cap for transceiver 10a of this embodiment is configured such that the rectangular plate-shaped elastic insertion portion 11 inserted into the front chamber 3 of the transceiver is bifurcated into two branches.
a first nose hole 14a closely fitted to the outer periphery of the light emitting element nose portion 5, and a second nose hole 14 closely fitted to the light receiving element nose portion 6 in the other branch portion 11b.
forming b. An outer peripheral surface on the root side of the insertion portion 11 is formed in a close-contact seal portion 15 which is in close contact with the inner wall surface of the opening of the front chamber 3 as shown by a mesh in FIGS. And, on the inner wall surfaces of the nose holes 14a, 14b,
A plurality of cut grooves 18 formed in the circumferential direction are formed at predetermined intervals along the longitudinal direction of the hole, and a portion of the inner wall surface between the grooves 18 acts as an O-ring, so to speak, as a nose. Part 5,
It comes into firm contact with the outer circumference of 6 to prevent it from falling off.
このように構成した結果、第１図の状態において、防
水キヤツプ10aの挿入部11をトランシーバの前室３内に
加圧挿入すると、両ノーズ用孔14a,14bがそれぞれノー
ズ部5,6の外周に強固に密着する。そして、各分岐部11
a,11bの先端の突起部11c,11dが、第７図に示すノーズ部
5,6の根元外周の溝部5a,6aに嵌合し、各分岐部11a,11b
の先端を適正位置に位置決めする。この挿入部11の挿入
の際、ノーズ用孔14a,14bとノーズ部5,6との間に寸法誤
差があつても、各分岐部11a,11bの弾性変形によりその
誤差が吸収され、かつノーズ用孔14a,14bの内壁面に形
成された複数の切り込み溝18の作用と相俟つて強固な防
水がなされる。そして、挿入部11の根元の密着シール部
15は前室３の入口内壁面に密着し、この部分で水の侵入
を阻止する。このように、この実施例のトランシーバ用
防水キヤツプ10aは、防水に際して二段がまえの構成を
とつており、まず根元側の密着シール部15で１次防水を
し、さらにノーズ用孔14a,14bとノーズ部5,6との密着嵌
合により、２次防水をしている。したがつて、強い水流
で水洗しても、水がトランシーバのノーズ部内に侵入す
ることがなく取付用ピン８を利用しコンピユーターに取
り付けられる。As a result of this construction, when the insertion portion 11 of the waterproof cap 10a is press-inserted into the front chamber 3 of the transceiver in the state shown in FIG. 1, the nose holes 14a and 14b are formed on the outer periphery of the nose portions 5 and 6, respectively. Firmly adheres to And each branch 11
The projections 11c and 11d at the tips of the a and 11b are nose portions shown in FIG.
Fit into the grooves 5a, 6a on the outer periphery of the roots of 5, 6 and each branch 11a, 11b
Position the tip of the in a proper position. When the insertion portion 11 is inserted, even if there is a dimensional error between the nose holes 14a, 14b and the nose portions 5, 6, the error is absorbed by the elastic deformation of the branch portions 11a, 11b, and the nose is removed. Strong waterproofing is achieved in combination with the action of the plurality of cut grooves 18 formed on the inner wall surfaces of the use holes 14a and 14b. Then, the close sealing portion at the base of the insertion portion 11
Reference numeral 15 closely adheres to the inner wall surface of the entrance of the front chamber 3, and prevents water from entering at this portion. As described above, the transceiver waterproof cap 10a of this embodiment has a two-stage structure for waterproofing. First, the primary waterproofing is performed by the close contact seal portion 15 on the base side, and the nose holes 14a and 14b are further provided. The secondary waterproofing is achieved by the close fitting of the nose portions 5 and 6 to each other. Therefore, even if the water is washed with a strong current, the water can be attached to the computer using the mounting pins 8 without entering the nose portion of the transceiver.
第４図および第５図は、他の実施例を示している。こ
の実施例は、挿入部11の分岐部11a,11bの相対向する面
に長手方向に沿つて、ノーズ用孔14a,14bに達する切込
み17を形成している。それ以外の部分は、前記実施例と
同様である。このようにすると、ノーズ用孔14a,14bと
ノーズ部5,6との直径の誤差も、上記切込み17によつて
吸収できるようになる。FIG. 4 and FIG. 5 show another embodiment. In this embodiment, cuts 17 reaching the nose holes 14a, 14b are formed in the opposing surfaces of the branch portions 11a, 11b of the insertion portion 11 along the longitudinal direction. The other parts are the same as in the above embodiment. In this way, the notch 17 can also absorb the error in the diameter between the nose holes 14a, 14b and the nose portions 5, 6.
以上のように、この発明のトランシーバ用防水キヤツ
プは、トランシーバの前室内に嵌合される弾性挿入部を
二股状に分岐し、各分岐部にノーズ用孔を形成している
ため、トランシーバの隔壁に設けられた発光素子ノーズ
部および受光素子ノーズ部との間隔と、各分岐部に形成
された第１および第２のノーズ用孔との間隔とが多少ず
れていても、各分岐部が弾性変形してそのずれを吸収す
る。したがつて、防水キヤツプの挿入作業が容易になる
と同時に、ノーズ部の外周に対するノーズ用孔の密着嵌
合が良好になり、良好な水密状態が維持されるようにな
る。また、挿入部の根元側の外周がトランシーバの前室
開口の内壁面に密着する密着シール部に形成されている
ことから、この部分で１次防水される。そして、ここを
透過した水が、ノーズ用孔とノーズ部との密着嵌合によ
つて、２次防水される。したがつて、強力な水洗を施し
ても、水がノーズ部内に侵入して光入出力低下を生じる
ことがない。また、この発明の防水キヤツプはトランシ
ーバの保管の際の入口蓋としても利用することができ、
保管中の塵埃等の侵入の防止効果も奏する。As described above, the transceiver waterproof cap of the present invention branches the elastic insertion portion fitted into the front chamber of the transceiver into two branches and forms a nose hole in each branch portion. Even if the distance between the light emitting element nose part and the light receiving element nose part provided in the diverging part and the distance between the first and second nose holes formed in each branch part are slightly shifted, each branch part is elastic. Deforms to absorb the shift. Accordingly, the work of inserting the waterproof cap is facilitated, and at the same time, the close fitting of the nose hole to the outer periphery of the nose portion is improved, and a good watertight state is maintained. In addition, since the outer periphery of the base side of the insertion portion is formed in the close contact seal portion which is in close contact with the inner wall surface of the front chamber opening of the transceiver, primary waterproofing is performed at this portion. The water that has passed therethrough is secondarily waterproofed by close fitting of the nose hole and the nose portion. Therefore, even if strong washing is performed, water does not intrude into the nose portion to cause a decrease in light input / output. Also, the waterproof cap of the present invention can be used as an entrance cover when storing the transceiver,
It also has an effect of preventing intrusion of dust and the like during storage.
第１図はこの発明の一実施例の使用状態の説明図、第２
図はその平面図、第３図は同じくその外観斜視図、第４
図および第５図は他の実施例の斜視図、第６図はこの発
明の基礎となる防水キヤツプの使用説明図、第７図は第
６図のＡ−Ａ′断面図である。 11……弾性挿入部、11a,11b……分岐部、14a,14b……ノ
ーズ用孔、15……密着シール部FIG. 1 is an explanatory view of a use state of an embodiment of the present invention, and FIG.
FIG. 3 is a plan view of the same, FIG.
FIG. 5 and FIG. 5 are perspective views of another embodiment, FIG. 6 is an explanatory view of use of a waterproof cap on which the present invention is based, and FIG. 7 is a sectional view taken along the line AA 'of FIG. 11 Elastic insertion part, 11a, 11b Branch part, 14a, 14b Nose hole, 15 Close contact seal part
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｈ０４Ｂ 10/26 10/28 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI H04B 10/26 10/28
Claims (2)
と後室に分割され、後室が半導体素子収容密封室に形成
され、前室側の隔壁に発光素子ノーズ部と受光素子ノー
ズ部とが形成されているトランシーバの前室開口を栓す
る防水キヤツプであつて、上記前室内に嵌挿される弾性
挿入部と、その後端に設けられた操作部とを備え、上記
挿入部は、挿入方向に沿つて二股状に分岐され、一方の
分岐部に上記発光素子ノーズ部の外周に密着嵌合する第
１のノーズ用孔が形成されているとともに、他方の分岐
部に受光素子ノーズ部の外周に密着嵌合する第２のノー
ズ用孔が形成され、挿入部の根元側の外周が上記前室の
開口の内壁面に密着する密着シール部に形成されている
ことを特徴とするトランシーバ用防水キヤツプ。The interior of a cylindrical casing is divided into a front chamber and a rear chamber by a central partition wall, and a rear chamber is formed in a sealed chamber for accommodating a semiconductor element, and a light emitting element nose section and a light receiving element nose section are formed in a partition on the front chamber side. A waterproof cap for plugging an opening of a front chamber of a transceiver having a resilient insertion section inserted into the front chamber and an operation section provided at a rear end thereof, wherein the insertion section is inserted in an insertion direction. A first nose hole is formed in one of the branch portions so as to closely fit the outer periphery of the light emitting element nose portion, and the other branch portion has an outer periphery of the light receiving element nose portion. A second nose hole which is fitted tightly with the front end of the insertion chamber, and an outer periphery of a base side of the insertion portion is formed in a close sealing portion which is tightly fitted to an inner wall surface of the opening of the front chamber. Caps.
複数の切込溝が、周方向に沿い、かつ孔の長手方向に所
定間隔で形成されている請求項（１）記載のトランシー
バ用防水キヤツプ。2. An inner wall surface of the first and second nose holes,
The waterproof cap for a transceiver according to claim 1, wherein the plurality of cut grooves are formed along the circumferential direction and at predetermined intervals in the longitudinal direction of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175652A JP2741421B2 (en) | 1990-07-02 | 1990-07-02 | Waterproof cap for transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175652A JP2741421B2 (en) | 1990-07-02 | 1990-07-02 | Waterproof cap for transceiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0463495A JPH0463495A (en) | 1992-02-28 |
| JP2741421B2 true JP2741421B2 (en) | 1998-04-15 |
Family
ID=15999843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2175652A Expired - Fee Related JP2741421B2 (en) | 1990-07-02 | 1990-07-02 | Waterproof cap for transceiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2741421B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6280102B1 (en) | 1998-02-20 | 2001-08-28 | Sumitomo Electric Industries, Ltd. | Optical module product with sealing cap |
| JP2007078938A (en) * | 2005-09-13 | 2007-03-29 | Sumitomo Electric Ind Ltd | Electrooptical coupling device with waterproof receptacle, optical module, and optical plug |
| JP6092609B2 (en) * | 2012-12-19 | 2017-03-08 | 矢崎総業株式会社 | Dust cap and connector engagement body |
| CN115768001B (en) * | 2022-11-25 | 2023-06-06 | 吉林化工学院 | Dampproofing electric instrument panel |
-
1990
- 1990-07-02 JP JP2175652A patent/JP2741421B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0463495A (en) | 1992-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |