JPS5823711B2 - Sea heater - Google Patents
Sea heaterInfo
- Publication number
- JPS5823711B2 JPS5823711B2 JP51126642A JP12664276A JPS5823711B2 JP S5823711 B2 JPS5823711 B2 JP S5823711B2 JP 51126642 A JP51126642 A JP 51126642A JP 12664276 A JP12664276 A JP 12664276A JP S5823711 B2 JPS5823711 B2 JP S5823711B2
- Authority
- JP
- Japan
- Prior art keywords
- sheathed heater
- silicone rubber
- parts
- terminal
- heater
- 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
Links
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】
この発明は冷凍庫および冷蔵庫等のデフロスト用に使用
する完全密封形シーズヒータの端末モールドに使用する
加硫ゴムの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in vulcanized rubber used in terminal molds of completely sealed sheathed heaters used for defrosting freezers, refrigerators, and the like.
シーズヒータの端末モールドの要部断面を第１図に示す
。FIG. 1 shows a cross section of the main part of the terminal mold of the sheathed heater.
シーズヒータは金属パイプ１の内部中央にターミナル３
を接続したヒータ線２を入れ、金属パイプとヒータ線と
の間に、マグネシャ粉等の無機質の電気絶縁材料６を充
てんしたものである。The sheathed heater has a terminal 3 in the center inside the metal pipe 1.
A heater wire 2 connected to the metal pipe is inserted, and an inorganic electrical insulating material 6 such as magnesia powder is filled between the metal pipe and the heater wire.
シーズヒータの端末部近傍で、シーズヒータのターミナ
ル３にシリコーンゴム等のゴム被覆したリード線５を接
続端子７を用いて接続し、この接続部、シーズヒータの
金属パイプの端末部およびゴム被覆したリード線とをシ
リコーンゴム等の加硫ゴム６で一体成形し、シーズヒー
タの端末モールドを形成している。Near the end of the sheathed heater, a lead wire 5 covered with rubber such as silicone rubber is connected to the terminal 3 of the sheathed heater using a connection terminal 7, and this connection, the end of the metal pipe of the sheathed heater, and the rubber-covered lead wire 5 are connected to the terminal 3 of the sheathed heater. The lead wires are integrally molded with vulcanized rubber 6 such as silicone rubber to form a terminal mold of the sheathed heater.
こ５に用いる加硫ゴムには耐寒性、耐熱性に優れたシリ
コーンゴムが広く利用されている。Silicone rubber, which has excellent cold resistance and heat resistance, is widely used as the vulcanized rubber used in this process.
シリコーンゴムで、端末モールドしたシーズヒータはシ
リコーンゴムに透湿性があるために、金属パイプ内に充
てんされているマグネシャ粉は水分を吸収し、シーズヒ
ータの絶縁抵抗を低下させる。Since silicone rubber is moisture-permeable in a sheathed heater whose end is molded with silicone rubber, the magnesia powder filled in the metal pipe absorbs moisture and lowers the insulation resistance of the sheathed heater.
特に冷熱サイクルで繰り返して使用していると１０４Ｍ
Ω程度の絶縁抵抗が１０ＭΩ程度にまで低下し、シーズ
ヒータの信頼性が低い欠点をもっていた。Especially when used repeatedly in cold and hot cycles, it can reach 104M.
The insulation resistance of about Ω decreased to about 10 MΩ, and the reliability of the sheathed heater was low.
そこで、本発明ではシーズヒータの端末モールドに用い
る加硫ゴムのシリコーンゴムを改良し、シーズヒータの
絶縁抵抗が常に高く、安定した状態を保つように対策し
たものである。Therefore, in the present invention, the silicone rubber of the vulcanized rubber used in the terminal mold of the sheathed heater is improved to ensure that the insulation resistance of the sheathed heater is always kept high and stable.
実施例につき以下に説明する。Examples will be described below.
一般に加硫ゴムのシリコーンゴムはシロキサン１００部
に対し、シリカ粉末（粒径３０〜３００ Ａ）を３０〜
５０部配合し配合のである。Generally, vulcanized silicone rubber contains 30 to 30 parts of silica powder (particle size 30 to 300 A) per 100 parts of siloxane.
It is blended with 50 parts.
これに加硫剤を加え混練し、１２０〜１８０℃に加熱し
たモールド成形金型内に入れ、一定圧力を加えてシーズ
ヒータの端末モールドを成形している。A vulcanizing agent is added and kneaded, placed in a molding die heated to 120 to 180°C, and a constant pressure is applied to form the terminal mold of the sheathed heater.
このシリコーンゴム１００部に対し分散促進剤としてア
ルコキシシラン又はヒドロキシシラン等を０．１〜３部
配配合次に示すような熱塑性又は熱硬化性樹脂を配合す
る。0.1 to 3 parts of alkoxysilane or hydroxysilane as a dispersion accelerator are added to 100 parts of this silicone rubber.The following thermoplastic or thermosetting resin is added.
（１）ポリカーボネート粉末（２００メツシユパス）を
シリコーンゴム１００部に対し３０〜７０部好ましくは
４０部配合する。(1) 30 to 70 parts, preferably 40 parts, of polycarbonate powder (200 mesh passes) is blended to 100 parts of silicone rubber.
（２） ポリスチレン粉末（２００メツシユパス）を
シリコーンゴム１００部に対し３０〜７０部好ましくは
４０部配合する。(2) 30 to 70 parts, preferably 40 parts, of polystyrene powder (200 mesh pass) is blended to 100 parts of silicone rubber.
（３）ホリ四フッ化エチレン粉末（２００メツシユパス
）をシリコーンゴム１００部に対し３０〜１００部、好
ましくは４０部配合する。(3) Add 30 to 100 parts, preferably 40 parts, of polytetrafluoroethylene powder (200 mesh passes) to 100 parts of silicone rubber.
（４） 架橋ポリエチレン粉末（１５０メツシユパス
）をシリコーンゴム３０〜８０部好ましくは４０部配合
する。(4) 30 to 80 parts, preferably 40 parts, of silicone rubber are blended with crosslinked polyethylene powder (150 mesh passes).
シリコーンゴムに上記熱塑性又は熱硬化性樹脂を配合し
ローラーで均一に混練する。The above thermoplastic or thermosetting resin is blended with silicone rubber and kneaded uniformly with a roller.
シーズヒータ端末モールド用成形金型のキャビティ内に
充てんし、１２０〜１８０℃に加熱し、型成形する。It is filled into the cavity of a molding die for a sheathed heater terminal mold, heated to 120 to 180°C, and molded.
シリコーンゴム内に配合された熱可塑性樹脂は変形し、
シリコーンゴム内を透湿する水分のバスが長くなるため
に水分又は水分子が透過し難くなりシーズヒータの端末
モールドに用いるとシーズヒータの絶縁抵抗の経時変化
が少ない。The thermoplastic resin compounded in silicone rubber deforms,
Since the moisture bath that permeates through the silicone rubber becomes longer, it becomes difficult for moisture or water molecules to permeate, and when used in the terminal mold of a sheathed heater, there is little change over time in the insulation resistance of the sheathed heater.
又シリコーンゴム内に配合された熱硬化性樹脂はシリコ
ーンゴム内を透湿する水分のパスが長くなるためにシー
ズヒータの絶縁抵抗の経時変化が少なくなる。Furthermore, since the thermosetting resin blended into the silicone rubber has a longer path for moisture to permeate through the silicone rubber, changes over time in the insulation resistance of the sheathed heater are reduced.
第２図にシーズヒータの絶縁抵抗の経時変化を示す。Figure 2 shows the change in insulation resistance of the sheathed heater over time.
この発明によるとシリコーンゴム内に配合した熱可塑性
樹脂および熱硬化性樹脂を用いて、シー−Ｘヒータの端
末モールドを作ると、シーズヒータの絶縁抵抗の経時変
化が少なく、信頼性の高いシーズヒータを提供できる。According to this invention, if the terminal mold of the C-X heater is made using thermoplastic resin and thermosetting resin blended into silicone rubber, the insulation resistance of the sheathed heater will not change over time, and the sheathed heater will be highly reliable. can be provided.
第１図はシーズヒータの端末モールドの要部断面、第２
図はシーズヒータの水中での絶縁抵抗の経時変化を示す
。
１・・・・・・金属パイプ、３・・・・・・ターミナル
、５・・・・・・ゴム被覆リード線、６・・・・・・加
硫ゴム、７・・・・・・接続端子。Figure 1 is a cross section of the main part of the terminal mold of the sheathed heater, Figure 2 is
The figure shows the change in insulation resistance of a sheathed heater underwater over time. 1... Metal pipe, 3... Terminal, 5... Rubber coated lead wire, 6... Vulcanized rubber, 7... Connection terminal.
Claims (1)
線５とをシーズヒータの端末部近傍で接続しこの接続部
を含むシーズヒータの金属パイプ１の端末部およびリー
ド線とを加硫ゴムで一体成形するシーズヒータの端末モ
ールドはおいて、加硫ゴム材として熱可塑性または熱硬
化性樹脂を配合したシリコーンゴムを用いてシーズヒー
タの端末モールドを成すシーズヒータ。1 Connect the terminal 3 of the sheathed heater and the rubber-covered lead wire 5 near the end of the sheathed heater, and integrally mold the end of the metal pipe 1 of the sheathed heater including this connection and the lead wire with vulcanized rubber. The terminal mold of the sheathed heater is made of silicone rubber mixed with thermoplastic or thermosetting resin as a vulcanized rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51126642A JPS5823711B2 (en) | 1976-10-21 | 1976-10-21 | Sea heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51126642A JPS5823711B2 (en) | 1976-10-21 | 1976-10-21 | Sea heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5351542A JPS5351542A (en) | 1978-05-11 |
| JPS5823711B2 true JPS5823711B2 (en) | 1983-05-17 |
Family
ID=14940244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51126642A Expired JPS5823711B2 (en) | 1976-10-21 | 1976-10-21 | Sea heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5823711B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041708A (en) * | 2019-03-20 | 2019-07-23 | 肇庆皓明有机硅材料有限公司 | A kind of battery modules are flexible coupling protective case and its preparation process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032444A (en) * | 1959-08-13 | 1962-05-01 | Aero Res Instr Company Inc | Process for improving the electrically insulating properties of compacted, pulverulent, insulating materials |
| JPS5226271B2 (en) * | 1973-06-21 | 1977-07-13 | ||
| JPS5336848Y2 (en) * | 1974-11-07 | 1978-09-07 |
-
1976
- 1976-10-21 JP JP51126642A patent/JPS5823711B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5351542A (en) | 1978-05-11 |
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