JPH0521779Y2 - - Google Patents
Info
- Publication number
- JPH0521779Y2 JPH0521779Y2 JP1984112970U JP11297084U JPH0521779Y2 JP H0521779 Y2 JPH0521779 Y2 JP H0521779Y2 JP 1984112970 U JP1984112970 U JP 1984112970U JP 11297084 U JP11297084 U JP 11297084U JP H0521779 Y2 JPH0521779 Y2 JP H0521779Y2
- Authority
- JP
- Japan
- Prior art keywords
- stress cone
- metal fitting
- shielding
- fitting
- fittings
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 25
- 239000012212 insulator Substances 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Insulators (AREA)
- Insulating Bodies (AREA)
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
［考案の技術分野］
本考案は例えば電子顕微鏡等の電源部と電子顕
微鏡本体との渡りに使用する直流高圧用の連絡母
線に係る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a high-voltage DC communication bus used for connecting the power supply section of an electron microscope and the like to the main body of the electron microscope.
［考案の技術的背景とその問題点］
従来の連絡母線は第３図に示すように構成され
ている。すなわち、金属パイプから成る母線導体
１をストレスコーン金具２およびそれらの間に介
在される遮蔽金具３で同心的に包囲し、それらの
空間にエポキシモールド４を施して構成されてい
る。而して、モールド後のエポキシ樹脂の硬化収
縮時には、遮蔽金具３を外してエポキシ樹脂が自
由に収縮できるようにして、クラツクの発生を防
止しているが、時によるとエポキシ樹脂がストレ
スコーン金具２の内周面に部分的に接着し、収縮
が制限されクラツクが発生し絶縁破壊に至る可能
性があつた。[Technical background of the invention and its problems] A conventional communication busbar is constructed as shown in FIG. That is, a bus conductor 1 made of a metal pipe is concentrically surrounded by a stress cone metal fitting 2 and a shielding metal fitting 3 interposed between them, and an epoxy mold 4 is applied in the space between them. Therefore, when the epoxy resin hardens and shrinks after molding, the shielding fitting 3 is removed to allow the epoxy resin to freely shrink, thereby preventing the occurrence of cracks. Partially adhered to the inner circumferential surface of No. 2, shrinkage was restricted, cracks occurred, and there was a possibility of dielectric breakdown.
［考案の目的］
本考案は上記の事情に基きなされたもので、製
造時にエポキシ樹脂モールド部にクラツクの発生
するおそれのない連絡用母線を提供する。[Purpose of the invention] The present invention has been made based on the above-mentioned circumstances, and provides a communication bus bar that is free from the possibility of cracks occurring in the epoxy resin molded portion during manufacturing.
［考案の概要］
本考案の連絡用母線は、導体と、この導体を同
心的に包囲して形成され、両端に相手方の受口に
挿入される円錐部を具え、中間を直状部とし、前
記円錐部の底面には前記直状部と同心の円周溝を
設け、前記直状部表面および前記円錐部底面には
半導電塗料を塗布したエポキシ樹脂モールド絶縁
体と、二分割構成で前記円周溝に適合する先端を
具え、前記直状部に可動に装着される２個のスト
レスコーン金具と、これらのストレスコーン金具
と電気的に接続されるとともに前記直状部に可動
に装着された遮蔽金具と、一方のストレスコーン
金具を前記遮蔽金具から繰り出す手段とを有する
ことを特徴とする。[Summary of the invention] The communication busbar of the invention is formed by concentrically surrounding a conductor, and has conical parts at both ends that are inserted into the sockets of the other end, with a straight part in the middle, A circumferential groove concentric with the straight part is provided on the bottom surface of the conical part, and an epoxy resin molded insulator coated with semi-conductive paint is provided on the surface of the straight part and the bottom face of the conical part, and two stress cone fittings having tips that fit into the circumferential groove and movably attached to the straight section; and two stress cone fittings that are electrically connected to the stress cone fittings and movably attached to the straight section. The present invention is characterized in that it has a shielding metal fitting having a cylindrical shape and a means for feeding out one stress cone metal fitting from the shielding metal fitting.
［考案の実施例］
本考案においては、従来のようにストレスコー
ン金具、遮蔽金具を金型として使用することな
く、別途用意した金型を使用してエポキシ樹脂モ
ールドの絶縁体４を、管状の導体１を同心的に包
囲して形成する。前記絶縁体４は、直円筒状の直
状部４ｂと、その両端に形成され図示しないブツ
シング本体の受口に挿入される円錐部４ａ，４ａ
とを具える。[Example of the invention] In the present invention, the insulator 4 of the epoxy resin mold is made into a tubular shape using a separately prepared mold instead of using stress cone fittings and shielding metal fittings as molds as in the past. It is formed by surrounding the conductor 1 concentrically. The insulator 4 includes a straight portion 4b having a right cylindrical shape, and conical portions 4a, 4a formed at both ends of the straight portion 4b and inserted into sockets of a bushing body (not shown).
and.
而して、前期絶縁体４に装着されるストレスコ
ーン金具２ａ，２ｂ、遮蔽金具３はそれ等の軸線
を含む平面による二分割構成としてある。一方の
ストレスコーン金具、例えばストレスコーン金具
２ｂの前記絶縁体４の直状部４ｂ側の端部には、
雄ねじ２b1が設けてあり、前記遮蔽金具３のそれ
に対向する端部には雌ねじ３ａが設けてある。ま
た、遮蔽金具３の他端にはストレスコーン金具２
ａの端部を受ける鍔部３ｂが設けられている。 The stress cone fittings 2a, 2b and the shielding fitting 3 attached to the insulator 4 are divided into two parts by a plane including their axes. At the end of one stress cone fitting, for example, the stress cone fitting 2b, on the straight part 4b side of the insulator 4,
A male thread 2b1 is provided, and a female thread 3a is provided at the opposite end of the shielding fitting 3. In addition, a stress cone metal fitting 2 is attached to the other end of the shielding metal fitting 3.
A flange portion 3b is provided to receive the end portion of a.
本考案の連絡用母線は次のようにして組み立て
られる。先ず、絶縁体４にその両端の円錐部４
ａ、の円錐面を除き、その円周溝４a1を有する底
面および直状部４ｂ表面には半導電塗料を塗布す
る。 The communication busbar of the present invention is assembled as follows. First, attach the conical parts 4 at both ends to the insulator 4.
A semiconductive paint is applied to the bottom surface having the circumferential groove 4a 1 and the surface of the straight portion 4b, except for the conical surface of a.
次にストレスコーン金具２ａ，２ｂを、それ等
の先端部が前記絶縁体４の円錐部４ａ，４ａの円
周溝４a1，４a1に近接、対向するように、前記絶
縁体４の直状部４ｂに取り付ける。この時、前記
ストレスコーン金具２ａ，２ｂの分割片間の緊締
は僅かに緩めにし、取付け後においても各金具が
絶縁体４の直状部４ｂに対して動き得るように、
仮装着しておく。 Next, the stress cone metal fittings 2a, 2b are placed in the straight shape of the insulator 4 so that their tips are close to and opposite the circumferential grooves 4a 1 , 4a 1 of the conical portions 4a, 4a of the insulator 4. Attach to section 4b. At this time, the tension between the divided pieces of the stress cone metal fittings 2a and 2b is slightly loosened so that each metal fitting can move relative to the straight part 4b of the insulator 4 even after installation.
Wear it temporarily.
次いで、遮蔽金具３の一端の雌ねじ３ａのねじ
山と、前記ストレスコーン金具２ｂの雄ねじ２b1
のねじ山とを合わせ、前記各ねじが螺合状態とな
るように、また他方のストレスコーン金具２ａの
端部が前記鍔部３ｂに係合するように注意しなが
ら、前記直状部４ｂに遮蔽金具３を取り付ける。
この場合においても、遮蔽金具３の分割片間の緊
締は僅かに緩くし、遮蔽金具３が直状部４ｂに対
して動き得るように、仮装着しておく。 Next, the thread of the female thread 3a at one end of the shielding fitting 3 and the male thread 2b 1 of the stress cone fitting 2b are connected.
and the straight part 4b, being careful so that each screw is in a screwed state and that the end of the other stress cone fitting 2a engages with the flange part 3b. Attach the shielding fitting 3.
Even in this case, the tension between the divided pieces of the shielding metal fitting 3 is slightly loosened, and the shielding metal fitting 3 is temporarily attached so that it can move relative to the straight portion 4b.
ここで、前記ストレスコーン金具２ｂまたは遮
蔽金具３のいずれかを回転させて、遮蔽金具２ｂ
を遮蔽金具３から繰り出し、その先端を対向した
円錐部４ａの円周溝４a1に突き当たらせる。 Here, either the stress cone metal fitting 2b or the shielding metal fitting 3 is rotated, and the shielding metal fitting 2b
is let out from the shielding fitting 3, and its tip is brought into contact with the circumferential groove 4a 1 of the opposing conical part 4a.
前記ストレスコーン金具２ｂの繰出しを継続す
ることにより、ストレスコーン金具２ａ，２ｂの
先端は円錐部４ａ，４ａの円周溝４a1，４a1に密
接される。 By continuing to feed out the stress cone fittings 2b, the tips of the stress cone fittings 2a, 2b are brought into close contact with the circumferential grooves 4a 1 , 4a 1 of the conical portions 4a, 4a.
最後に、上記各金具の分割片間の緊締を強固に
して、それ等の金具を本装着して連絡用母線の組
み立てを完了する。 Finally, the tightness between the divided pieces of each of the metal fittings is tightened, and these metal fittings are finally attached to complete the assembly of the communication bus bar.
［考案の効果］
上記から明らかなように、本考案の母線ではス
トレスコーン金具、遮蔽金具等を金型として使用
することなく、別途用意した金型によりエポキシ
樹脂モールド絶縁体を形成し、これに遮蔽金具、
ストレスコーン金具を取り付けるようにしている
から、製造時にクラツクの発生するおそれはな
い。[Effects of the invention] As is clear from the above, in the bus bar of the invention, the epoxy resin molded insulator is formed using a separately prepared mold, without using stress cone fittings, shielding fittings, etc. as molds. shielding fittings,
Since stress cone metal fittings are attached, there is no risk of cracks occurring during manufacturing.
第１図は本考案一実施例の正面図、第２図はそ
の要部の拡大断面図、第３図は従来の連絡用母線
の要部断面図である。
１……導体、２……ストレスコーン金具、３…
…遮蔽金具、４……絶縁体。
FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part thereof, and FIG. 3 is a sectional view of the main part of a conventional communication bus bar. 1... Conductor, 2... Stress cone fitting, 3...
...Shielding fitting, 4...Insulator.
Claims (1)
され、両端に相手方の受口に挿入される円錐部４
ａを具え、中間を直状部４ｂとし、前記円錐部４
ａの底面には前記直状部４ｂと同心の円周溝４a1
を設け、前記直状部４ｂ表面および前記円錐部４
ａ底面には半導電塗料を塗布したエポキシ樹脂モ
ールド絶縁体４と、二分割構成で前記円周溝４a1
に適合する先端を具え、前記直状部４ｂに可動に
装着される２個のストレスコーン金具２ａ，２
ｂ、これらのストレスコーン金具２ａ，２ｂと電
気的に接続されるとともに前記直状部に可動に装
着された遮蔽金具３と、一方のストレスコーン金
具２ｂを前記遮蔽金具３から繰り出す手段とを有
することを特徴とする連絡用母線。 A conductor 1, and a conical portion 4 formed concentrically surrounding the conductor 1 and inserted into a mating socket at both ends.
a, the middle is a straight part 4b, and the conical part 4
A circumferential groove 4a 1 concentric with the straight portion 4b is provided on the bottom surface of a.
are provided, and the surface of the straight portion 4b and the conical portion 4
The bottom surface of a has an epoxy resin molded insulator 4 coated with semi-conductive paint, and the circumferential groove 4a with a two-part structure.
Two stress cone metal fittings 2a, 2 are movably attached to the straight portion 4b and have tips adapted to the
b. A shielding metal fitting 3 electrically connected to these stress cone metal fittings 2a and 2b and movably attached to the straight portion, and means for feeding out one stress cone metal fitting 2b from the shielding metal fitting 3. A communication busbar characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11297084U JPS6128218U (en) | 1984-07-25 | 1984-07-25 | Communication busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11297084U JPS6128218U (en) | 1984-07-25 | 1984-07-25 | Communication busbar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6128218U JPS6128218U (en) | 1986-02-20 |
| JPH0521779Y2 true JPH0521779Y2 (en) | 1993-06-04 |
Family
ID=30672006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11297084U Granted JPS6128218U (en) | 1984-07-25 | 1984-07-25 | Communication busbar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6128218U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2556311Y2 (en) * | 1993-02-18 | 1997-12-03 | 理研軽金属工業株式会社 | Frame material for large display frame |
| JP5238016B2 (en) * | 2010-12-28 | 2013-07-17 | 昭和電線ケーブルシステム株式会社 | Connection bus |
| JP5297446B2 (en) * | 2010-12-28 | 2013-09-25 | 昭和電線ケーブルシステム株式会社 | Rubber bus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164114A (en) * | 1982-03-24 | 1983-09-29 | 日東電工株式会社 | Electrically insulating member |
| JPS5940417A (en) * | 1982-08-27 | 1984-03-06 | 昭和電線電纜株式会社 | Method of producing bushing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57159329U (en) * | 1981-03-31 | 1982-10-06 |
-
1984
- 1984-07-25 JP JP11297084U patent/JPS6128218U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164114A (en) * | 1982-03-24 | 1983-09-29 | 日東電工株式会社 | Electrically insulating member |
| JPS5940417A (en) * | 1982-08-27 | 1984-03-06 | 昭和電線電纜株式会社 | Method of producing bushing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6128218U (en) | 1986-02-20 |
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