JPH03220795A - Anchor and waterproof structure of wire rod - Google Patents
Anchor and waterproof structure of wire rodInfo
- Publication number
- JPH03220795A JPH03220795A JP2015675A JP1567590A JPH03220795A JP H03220795 A JPH03220795 A JP H03220795A JP 2015675 A JP2015675 A JP 2015675A JP 1567590 A JP1567590 A JP 1567590A JP H03220795 A JPH03220795 A JP H03220795A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- potting
- wire rod
- waterproof
- epoxy resin
- 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.)
- Granted
Links
- 238000004382 potting Methods 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 17
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 17
- 229920002050 silicone resin Polymers 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- 238000004078 waterproofing Methods 0.000 claims description 12
- 230000035515 penetration Effects 0.000 claims description 11
- 230000014759 maintenance of location Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 239000000945 filler Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電気、電子、光部品などを内蔵した筐体の側
壁に、電線、光ケーブル等の線材を貫通し、それらの線
材を引留め、且つその線材貫通部を防水する線材の引留
・防水構造に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention is a method for passing wires such as electric wires and optical cables through the side wall of a housing containing electric, electronic, optical components, etc., and securing the wires. , and relates to a wire retention/waterproof structure that waterproofs the wire penetration portion.
（従来の技術） 従来の線材の引留・防水構造には次のものがあった。(Conventional technology) Conventional wire retention/waterproof structures include the following:
■、線材がクランプ等の器具で引留められ、同線材にシ
ーリング材が塗布されて防水されるもの。■The wire is held in place by a device such as a clamp, and a sealing material is applied to the wire to make it waterproof.
■、防水機能を主とした充填材が線材と側壁との隙間に
充填されて、同充填材により線材の引留めを兼ねるよう
にしたもの。■A filler with a waterproof function is filled in the gap between the wire and the side wall, and the filler also serves to hold the wire in place.
■、引留機能を主とした充填材が線材と側壁との隙間に
充填されて、同充填材により防水を兼ねるようにしたも
の。■The gap between the wire rod and the side wall is filled with a filler that primarily has a retaining function, and the filler also serves as waterproofing.
（発明が解決しようとする課題）
前記した従来の引留・防水構造には夫々以下のような問
題があった。(Problems to be Solved by the Invention) The conventional retaining/waterproof structures described above each have the following problems.
前記■のものでは、複数本の線材を同時にクランプする
場合、クランプ力がばらつき易く、均一にクランプする
ことが困難である。また、複数本の線材の夫々を一つず
つクランプすると、機構が複雑で大掛かりになる。With the method (2) above, when clamping a plurality of wires at the same time, the clamping force tends to vary and it is difficult to clamp them uniformly. Furthermore, if each of the plurality of wire rods is clamped one by one, the mechanism becomes complicated and large-scale.
前記■のものでは、充填材の筐体の側壁及び線材への接
着性、密着性が重要であり、また耐環境性という点から
も弾力性のあるシリコンゴム等が充填材として用いられ
ることが多く、従って引留力か弱い。In the case of item (iii) above, adhesion and adhesion of the filler to the side wall of the casing and the wire are important, and elastic silicone rubber or the like may be used as the filler from the viewpoint of environmental resistance. A lot, so the retention force is weak.
前記■のものでは、強い引留力が要求されるため、充填
材に材料強度の強いものが用いられるが、筐体との接着
力に問題があり、ヒビ割れも発生し易く、従って防水性
に難点がある。In the above item (■), a strong retaining force is required, so a strong material is used for the filler, but there is a problem with the adhesive strength with the casing, and cracks are likely to occur, resulting in poor waterproofness. There are some difficulties.
（発明の目的）
本発明の目的は線材の引留力に優れ、且つ防水性が高く
、しかも構造が簡潔である線材の引留・防水構造を提供
することにある。(Objective of the Invention) An object of the present invention is to provide a wire retaining/waterproof structure that has excellent wire retaining force, high waterproofness, and a simple structure.
（課題を解決するための手段）
本発明の線材の引留・防水構造は、第１図のように筐体
１の側壁２に、線材３を貫通可能で、且つ同線材３を引
留めると共に防水構造とする線材貫通部４が形成されて
なる線材の引留・防水構造において、前記線材貫通部４
の内側と外側とにポツティング槽５．７が形成され、前
記内側のポツティング槽５内に、硬化前の粘度が１００
０００ｃｐｓ以下で、硬化後にゴム弾性体となって前記
線材貫通部４を防水する防水用シリコーン樹脂６がポツ
ティングされ、前記外側のポツティング槽７内に、硬化
前の粘度が１０００００ｃｐｓ以下で、硬化後の引張強
さが２８０〜９１０ｋｇ／ｃｒｎ’となって線材３を引
留める引留用エポキシ樹脂８がポツティングされてなる
ことを特徴とするものである。(Means for Solving the Problems) As shown in FIG. 1, the wire retaining/waterproofing structure of the present invention is capable of penetrating the wire 3 into the side wall 2 of the casing 1, retaining the wire 3, and making it waterproof. In a wire rod retention/waterproof structure in which a wire rod penetration part 4 is formed, the wire rod penetration part 4
Potting tanks 5.7 are formed on the inside and outside of the potting tank 5, and the inside potting tank 5 has a viscosity of 100
000 cps or less, a waterproof silicone resin 6 which becomes a rubber elastic body after curing and waterproofs the wire rod penetration part 4 is potted into the outer potting tank 7, and has a viscosity of 100,000 cps or less before curing, and a silicone resin 6 after curing. This wire is characterized by being potted with a retaining epoxy resin 8 having a tensile strength of 280 to 910 kg/crn' and retaining the wire 3.
（作用）
本発明の線材の引留・防水構造では前記のように防水用
シリコーン樹脂６と引留用エポキシ樹脂８とが別々にポ
ツティングされるので、外側の引留用エポキシ樹脂８が
外力を吸収或は分担し、内側の防水用シリコーン樹脂６
まで外力が及ばない。また、外側の引留用エポキシ樹脂
８を通過した水分も内側の防水用シリコーン樹脂６で遮
断することができ、筐体ｌの中まで水分が入ることがな
い。(Function) In the wire rod retention/waterproof structure of the present invention, the waterproof silicone resin 6 and the retention epoxy resin 8 are potted separately as described above, so the outer retention epoxy resin 8 absorbs external force or Partially waterproof silicone resin inside 6
No external force can reach that point. In addition, moisture passing through the outer retaining epoxy resin 8 can be blocked by the inner waterproofing silicone resin 6, so that moisture does not enter into the casing l.
（実施例）
第１図は本発明の線材の引留・防水構造を実施化した筐
体の一例である。(Example) FIG. 1 is an example of a casing in which the wire retaining/waterproofing structure of the present invention is implemented.
同図に示す１は筐体であり、その内側にプリント基板１
０が内装され、四本の線材３（この場合は電線）の内側
の端末が同プリント基板１０にハンダ付けされ、同線材
３が筐体１の側壁２を貫通して外部に配線されている。1 shown in the figure is a housing, and there is a printed circuit board 1 inside it.
0 is installed inside, the inner terminals of four wires 3 (in this case electric wires) are soldered to the printed circuit board 10, and the wires 3 penetrate the side wall 2 of the housing 1 and are wired to the outside. .
この実施例では線材３として表面がエツチング加工され
た外径３．５φのテフロン線材が使用されている。In this embodiment, a Teflon wire having an outer diameter of 3.5φ and having an etched surface is used as the wire 3.
また、同図の４は前記線材を引留めると共に、筐体１の
内外を防水する線材貫通部である。そして本発明では同
線材貫通部４の内側と外側とに一つのポツティング槽５
．７が設けられている。この実施例では両ポッティング
槽５．７の間には隔壁１１が設けられており、同隔壁１
１には線材３の外径に合せた通孔１２が形成され、同通
孔１２内に線材３が貫通されている。Further, reference numeral 4 in the figure is a wire penetration portion that holds the wire and waterproofs the inside and outside of the casing 1. In the present invention, one potting tank 5 is provided on the inside and outside of the wire rod penetration part 4.
．． 7 is provided. In this embodiment, a partition wall 11 is provided between both potting tanks 5.7.
1 is formed with a through hole 12 that matches the outer diameter of the wire 3, and the wire 3 is passed through the through hole 12.
前記内側のポツティング槽５内には、防水用シリコーン
樹脂６がポツティングされて硬化し、筐体ｌの内外が防
水される。この防水用シリコーン樹脂６は硬化前の粘度
がｌ ０００００ｃｐｓ以下で、硬化後にゴム弾性体と
なるものである。A waterproofing silicone resin 6 is potted into the inner potting tank 5 and hardened, thereby making the inside and outside of the casing l waterproof. This waterproof silicone resin 6 has a viscosity of 100,000 cps or less before curing, and becomes a rubber elastic body after curing.
また、前記外側のポッティング槽７内には引留用エポキ
シ樹脂８がポッティングされて硬化し、同樹脂８により
線材３が引留められる。この引留用エポキシ樹脂８は硬
化前の粘度がｌ ０００００ｃｐｓ以下で、硬化後の引
張強さが２８０〜９１０ｋｇ／ｃｒｎ”となるものであ
り、この実施例ではスタイキャスト２０５７ （商品名
・エマーツン・カミングジャパン株式会社製品）が使用
されている。この実施例では、引留用エポキシ樹脂８と
線材３との接触長さは７ｍｍであった。Further, a retaining epoxy resin 8 is potted into the outer potting tank 7 and hardened, and the wire 3 is retained by the resin 8. This retaining epoxy resin 8 has a viscosity of 100,000 cps or less before curing, and a tensile strength of 280 to 910 kg/crn after curing. Japan Co., Ltd. product) is used. In this example, the contact length between the retaining epoxy resin 8 and the wire 3 was 7 mm.
前記のように構成される本発明の線材の引留・防水構造
において、前記線材３を２０ ｍ ｍ ／ ｍ ｉｎの
速度で引抜いてその引留力を近回調べた所、夫々８．６
ｋｇｆ、７．８ｋｇｆ、７．６ｋｇｆ、？ｔ５ｋｇｆ、
７．３ｋｇｆ、７．６ｋｇｆ、８．Ｏｋｇｆなる数値が
得られ、実用上問題のないレベルであることが分かった
。In the wire rod retaining/waterproofing structure of the present invention configured as described above, the wire rod 3 was pulled out at a speed of 20 mm/min and the retaining force was recently examined and found to be 8.6.
kgf, 7.8kgf, 7.6kgf,? t5kgf,
7.3kgf, 7.6kgf, 8. A numerical value of Okgf was obtained, which was found to be at a level that poses no problem in practical use.
また−３０〜８０℃までの冷却・加熱温度をかけた後、
筐体ｌの内部に１ｋｇ／ｃｔｒｌ”の圧力を掛けて水中
に浸漬させ、内部からの気泡洩れテストを行ったところ
、気泡の洩れがなく気密性、防水性が確認された。Also, after cooling and heating temperatures from -30 to 80℃,
When a pressure of 1 kg/ctrl was applied to the inside of the casing l and the housing was immersed in water, a bubble leakage test from the inside was conducted, and no air bubbles leaked, confirming airtightness and waterproofness.
この実施例では線材３の表面をエツチング加工して使用
したが、そのようにすれば線材３と同樹脂６．８との接
着力が向上するため、前記引留力及び防水性が向上する
。In this embodiment, the surface of the wire 3 was etched and used, but by doing so, the adhesion between the wire 3 and the same resin 6.8 is improved, so that the above-mentioned retaining force and waterproof property are improved.
また、防水性シリコーン樹脂６とポツティング槽５との
接着力を高めて防水性を向上させる為に、同ポッティン
グ槽５の内壁面にブライマーを塗布してから同樹脂６を
ポツティングしてもよし１゜
なお、前記隔壁１１は第１図において、外側のポツティ
ング槽７の外側或は、内側のポツティング槽５の内側に
設けてもよい。In addition, in order to increase the adhesive strength between the waterproof silicone resin 6 and the potting tank 5 and improve waterproofness, it is also possible to apply a brimer to the inner wall surface of the potting tank 5 before potting the resin 6. Note that the partition wall 11 may be provided outside the outer potting tank 7 or inside the inner potting tank 5 in FIG.
（発明の効果）
本発明の線材の引留・防水構造では筐体ｌの線材貫通部
４の内側のポツティング槽５に防水用シリコーン樹脂６
が、同貫通部４の外側のポツティング槽７に引留用エポ
キシ樹脂８が夫々別々にポツティングされて硬化してい
るので、以下のような効果がある。(Effects of the Invention) In the wire rod retention/waterproof structure of the present invention, the waterproofing silicone resin 6 is placed in the potting tank 5 inside the wire rod penetration part 4 of the housing l.
However, since the retaining epoxy resin 8 is individually potted and cured in the potting tank 7 outside the through-hole 4, the following effects are obtained.
■、外側の引留用エポキシ樹脂８が線材３に掛る外力を
吸収或は分担するので、内側の防水用シリコーン樹脂６
まて外力が及ばない。■Since the outer restraining epoxy resin 8 absorbs or shares the external force applied to the wire 3, the inner waterproofing silicone resin 6
Well, no external force can reach it.
■ 外側の引留用エポキシ樹脂８を通過した水分が内側
の防水用シリコーン樹脂６により遮断されるため、筐体
１の中まで水分が入ることがなく、十分な防水性を得る
ことができる。(2) Since moisture passing through the outer retaining epoxy resin 8 is blocked by the inner waterproofing silicone resin 6, moisture does not enter into the casing 1, and sufficient waterproofness can be obtained.
■、クランプ等の器具を必要とせず、構造が簡潔になり
、ひいては安価で、実用化し易い。(2) No tools such as clamps are required, the structure is simple, and it is inexpensive and easy to put into practical use.
第１図は本発明の線材の引留・防水構造の一実施例を示
す断面図である。
１は筐体
２は側壁
３は線材
４は線材貫通部
５は内側のポツティング槽
６は防水用シリコーン樹脂
７は外側のポツティング槽
８は引留用エポキシ樹脂FIG. 1 is a sectional view showing an embodiment of the wire retaining/waterproofing structure of the present invention. 1 is a housing 2 is a side wall 3 is a wire rod 4 is a wire rod penetration part 5 is an inner potting tank 6 is silicone resin for waterproofing 7 is an outer potting tank 8 is an epoxy resin for retaining
Claims (1)
３を引留めると共に防水構造とする線材貫通部４が形成
されてなる線材の引留・防水構造において、前記線材貫
通部４の内側と外側とにポッティング槽５、７が形成さ
れ、前記内側のポッティング槽５内に、硬化前の粘度が
１０００００ｃｐｓ以下で、硬化後にゴム弾性体となっ
て前記線材貫通部４を防水する防水用シリコーン樹脂６
がポッティングされ、前記外側のポッティング槽７内に
、硬化前の粘度が１０００００ｃｐｓ以下で、硬化後の
引張強さが２８０〜９１０ｋｇ／ｃｍ＾２となって線材
３を引留める引留用エポキシ樹脂８がポッティングされ
てなることを特徴とする線材の引留・防水構造。In a wire rod retention/waterproof structure in which a wire rod penetration part 4 is formed in a side wall 2 of a casing 1 to allow a wire rod 3 to pass therethrough, retain the wire rod 3, and provide a waterproof structure, the wire rod penetration part 4 is Potting tanks 5 and 7 are formed on the inside and outside, and in the inside potting tank 5, a waterproofing material having a viscosity before curing of 100,000 cps or less and becoming a rubber elastic body after curing to waterproof the wire rod penetration part 4 is provided. silicone resin 6
is potted, and in the outer potting tank 7 is a retaining epoxy resin 8 having a viscosity before curing of 100,000 cps or less and a tensile strength of 280 to 910 kg/cm^2 after curing to hold the wire 3. A wire retaining and waterproof structure characterized by being potted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015675A JP2773944B2 (en) | 1990-01-25 | 1990-01-25 | Wire retention and waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015675A JP2773944B2 (en) | 1990-01-25 | 1990-01-25 | Wire retention and waterproof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03220795A true JPH03220795A (en) | 1991-09-27 |
| JP2773944B2 JP2773944B2 (en) | 1998-07-09 |
Family
ID=11895325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015675A Expired - Lifetime JP2773944B2 (en) | 1990-01-25 | 1990-01-25 | Wire retention and waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2773944B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100730198B1 (en) * | 2006-01-27 | 2007-06-19 | 삼성에스디아이 주식회사 | Silicon protective material and display apparatus applying the same |
| WO2007116791A1 (en) * | 2006-03-28 | 2007-10-18 | Tamura Corporation | Waterproof case for electrical apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51162994U (en) * | 1975-06-19 | 1976-12-25 | ||
| JPS60107579U (en) * | 1983-12-23 | 1985-07-22 | 三菱重工業株式会社 | Lead wire outlet hole sealing device |
-
1990
- 1990-01-25 JP JP2015675A patent/JP2773944B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51162994U (en) * | 1975-06-19 | 1976-12-25 | ||
| JPS60107579U (en) * | 1983-12-23 | 1985-07-22 | 三菱重工業株式会社 | Lead wire outlet hole sealing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100730198B1 (en) * | 2006-01-27 | 2007-06-19 | 삼성에스디아이 주식회사 | Silicon protective material and display apparatus applying the same |
| WO2007116791A1 (en) * | 2006-03-28 | 2007-10-18 | Tamura Corporation | Waterproof case for electrical apparatus |
| US7789696B2 (en) | 2006-03-28 | 2010-09-07 | Tamura Corporation | Waterproof case for electrical apparatus |
| JP4862040B2 (en) * | 2006-03-28 | 2012-01-25 | 株式会社タムラ製作所 | Waterproof case for electrical appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2773944B2 (en) | 1998-07-09 |
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