JPH02880B2 - - Google Patents
Info
- Publication number
- JPH02880B2 JPH02880B2 JP56170164A JP17016481A JPH02880B2 JP H02880 B2 JPH02880 B2 JP H02880B2 JP 56170164 A JP56170164 A JP 56170164A JP 17016481 A JP17016481 A JP 17016481A JP H02880 B2 JPH02880 B2 JP H02880B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber body
- electrical equipment
- carbon fiber
- glass fiber
- woven
- 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
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- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Conductive Materials (AREA)
- Inorganic Insulating Materials (AREA)
Description
【発明の詳細な説明】
本発明は、内外の電磁波を遮蔽するための電気
機器筐体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical equipment housing for shielding internal and external electromagnetic waves.
このような電気機器筐体は、雑音発生源となる
電圧発生装置や雑音電磁波の影響化におかれる電
子部品などの収納に用いられ、内外の電磁波を遮
蔽することによつて収納装置域いは部品が外部に
悪影響を及ぼすこと、及び外部から悪影響を受け
ることがないように構成される。 Such electrical equipment casings are used to house voltage generators that are a source of noise and electronic components that are subject to the effects of noise electromagnetic waves. The components are constructed so that they do not have any negative impact on the outside, nor are they affected by any negative effects from the outside.
従来、この種の電気機器筐体としては金属ケー
スが広く用いられているが、これには次のような
欠点がある。 Conventionally, a metal case has been widely used as a case for this type of electrical equipment, but this has the following drawbacks.
(a) 金属ケースのためケースに雑音電流が流れ、
ケースの合せ部分から雑音電流がケース内外に
漏れ易い。(a) Because of the metal case, noise current flows through the case,
Noise current easily leaks into and out of the case from the mating parts of the case.
(b) 例えば高電圧発生装置などを収納したような
場合に、金属ケースであるために耐電圧が悪
く、ケース内面との間にスパークが生じ易い。(b) For example, when a high voltage generator or the like is housed, the metal case has poor withstand voltage, and sparks are likely to occur between the case and the inner surface of the case.
(c) ケースが金属製のため、装置域いは部品の軽
量化が阻害される。(c) Since the case is made of metal, it is difficult to reduce the weight of the device area or parts.
従つて本発明は従来の技術の上記欠点を改善す
るもので、その目的は、耐電圧が高く雑音防止効
果を有し、しかも軽量な電気機器筐体を提供する
ことにある。この目的を達成するための本発明の
特徴は、内外の電磁波を遮蔽するための電気機器
筐体において、該筐体を、カーボン繊維による織
布若しくは不織布に樹脂を含浸させて形成した少
くとも１枚のカーボン繊維と、ガラス繊維による
織布若しくは不織布にフエライト粉末含有の樹脂
を含浸させて形成した少なくとも１枚のガラス繊
維体との重ね合せ構造体で形成するごとき電気機
器筐体にある。更に本発明の別の特徴は、内外の
電磁波を遮蔽するための電気機器筐体において、
該筐体を、カーボン繊維による織布若しくは不織
布にフエライト粉末含有の樹脂を含浸させて形成
した少なくとも１枚のカーボン繊維体で形成する
ごとき電気機器筐体にある。 SUMMARY OF THE INVENTION Accordingly, the present invention aims to improve the above-mentioned drawbacks of the prior art, and its purpose is to provide a light-weight electrical equipment housing that has a high withstand voltage and noise prevention effect. A feature of the present invention for achieving this object is that, in an electrical equipment casing for shielding internal and external electromagnetic waves, the casing is made of at least one carbon fiber woven or nonwoven fabric impregnated with a resin. The present invention relates to an electrical equipment casing formed of a laminated structure of two sheets of carbon fiber and at least one glass fiber body formed by impregnating a woven or nonwoven glass fiber cloth with a resin containing ferrite powder. Furthermore, another feature of the present invention is that in an electrical equipment casing for shielding internal and external electromagnetic waves,
The electrical device casing includes at least one carbon fiber body formed by impregnating a woven or nonwoven carbon fiber fabric with a resin containing ferrite powder.
以下図面により本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明による電気機器筐体の断面図
で、１はカーボン繊維による織布若しくは不織布
に樹脂を含浸させて形成したカーボン繊維体、２
はガラス繊維による織布若しくは不織布にフエラ
イト粉末含有の樹脂を含浸させて形成したガラス
繊維体である。 FIG. 1 is a cross-sectional view of an electrical equipment housing according to the present invention, in which 1 is a carbon fiber body formed by impregnating a resin into a woven or nonwoven fabric made of carbon fibers, 2
is a glass fiber body formed by impregnating a woven or nonwoven glass fiber fabric with a resin containing ferrite powder.
カーボン繊維は織布又は不織布の状態で、第２
図に示すように、例えばエポキシ或いは不飽和ポ
リエステル等の液状樹脂４の入れられた容器３を
通過させることによつて、カーボン繊維に樹脂を
含浸させ、しかる後加熱して生乾きの柔らかな状
態（プリプレツグ）のカーボン繊維体１をつく
る。一方、ガラス繊維については、容器３に上記
樹脂４のほかにフエライト粉末を分散混入し、こ
の中を通してフエライト粉末含有の樹脂を含浸さ
せ、生乾きの柔らかい状態のガラス繊維体２にす
る。 The carbon fiber is in the form of a woven fabric or a non-woven fabric.
As shown in the figure, the carbon fibers are impregnated with resin by passing through a container 3 containing a liquid resin 4 such as epoxy or unsaturated polyester, and then heated to a soft, half-dried state ( A carbon fiber body 1 of prepreg) is made. On the other hand, regarding the glass fibers, ferrite powder is dispersed and mixed in the container 3 in addition to the resin 4, and the resin containing the ferrite powder is impregnated through the container 3 to form the glass fiber body 2 in a soft, half-dried state.
このような柔らかい状態のカーボン繊維体１と
ガラス繊維体２は、重ね合されて所望の形状に熱
プレスされ、電気機器筐体として形成される。各
繊維体１，２は柔らかな状態でプレスされるの
で、種々の形状に対して加工性がよくまた容易で
ある。 The carbon fiber body 1 and the glass fiber body 2 in such a soft state are overlapped and hot pressed into a desired shape to form an electrical equipment housing. Since each of the fibrous bodies 1 and 2 is pressed in a soft state, it is easy to process into various shapes.
上記構成によれば、カーボン繊維体は、金属板
と同様に雑音電磁波を透過させないので遮蔽効果
は良好であり、しかも金属板と異なりカーボン繊
維体は抵抗体であるので、雑音電流があまり流れ
ない。従つて、雑音電流は筺体の合せ目からケー
ス内外に流れにくくなる。 According to the above configuration, the carbon fiber body does not transmit noise electromagnetic waves like a metal plate, so it has a good shielding effect, and unlike the metal plate, the carbon fiber body is a resistor, so very little noise current flows. . Therefore, it becomes difficult for the noise current to flow into and out of the case from the joint between the cases.
上記構成で、ガラス繊維体２をカーボン繊維体
１に重ね合せるのは、電気機器筐体としての強度
を確保するためと、後述するように高電圧発生装
置を収納した場合にケース内面との間の耐電圧を
高くするためであり、更に製造コストの面で筺体
を安価に提供するためである。また、ガラス繊維
体２にフエライト粉末を分散混入するのは、ガラ
ス繊維体２にある程度の電波吸収体としての機能
をもたせるためであり、これにより収納装置から
出る高周波の減衰が可能となる。 In the above configuration, the glass fiber body 2 is superimposed on the carbon fiber body 1 in order to ensure the strength of the electrical equipment housing, and also to provide space between the inner surface of the case and the case when the high voltage generator is housed, as will be described later. This is to increase the withstand voltage of the housing, and also to provide the housing at a low cost in terms of manufacturing cost. Further, the reason why the ferrite powder is dispersed and mixed into the glass fiber body 2 is to give the glass fiber body 2 a certain degree of function as a radio wave absorber, thereby making it possible to attenuate the high frequency waves emitted from the storage device.
第１図で説明した構成材で電気機器筐体を形成
する場合には、第３図に示すように、筐体内面が
ガラス繊維体２となるように形成される。従つ
て、筐体内部５に高電圧発生機器を収納した場合
でも、内面がガラス繊維体であるためにスパーク
が極めて生じにくくなる。 When forming an electrical device casing using the constituent materials explained in FIG. 1, the inner surface of the casing is formed to be a glass fiber body 2, as shown in FIG. Therefore, even when a high voltage generating device is housed inside the housing 5, sparks are extremely unlikely to occur because the inner surface is made of glass fiber.
上記実施例においては、カーボン繊維体及びガ
ラス繊維体が各々１枚重ね合されたものについて
説明したが、双方とも任意の枚数重ね合せること
が可能である。 In the above embodiments, one carbon fiber body and one glass fiber body are stacked one on top of the other, but any number of sheets of both can be stacked on top of each other.
上記実施例においてはカーボン繊維体とガラス
繊維体との重ね合せ構造を用いたが、ガラス繊維
体を用いることなく構成することも可能である。
この場合、筐体は、カーボン繊維による織布又は
不織布にフエライト含有の樹脂を含浸させた少な
くとも１枚のカーボン繊維体で形成される。良好
な耐電圧を得るための体積比率としては、カーボ
ン繊維が60〜30vol％、フエライト粉末が20〜
50vol％、残りを樹脂とすることが望ましい。 In the above embodiment, a structure in which a carbon fiber body and a glass fiber body are stacked is used, but it is also possible to construct the structure without using a glass fiber body.
In this case, the casing is formed of at least one carbon fiber body made of a woven or nonwoven carbon fiber fabric impregnated with a ferrite-containing resin. The volume ratio to obtain good withstand voltage is 60 to 30 vol% for carbon fiber and 20 to 30 vol% for ferrite powder.
It is desirable that the content be 50 vol%, with the remainder being resin.
以上説明したように本発明によれば、カーボン
繊維を主体として電気機器筐体を構成するので、
雑音防止効果が大きく、軽量化することができ、
しかも高電圧発生機器を収納するような場合にも
耐電圧を高くすることができる。 As explained above, according to the present invention, since the electrical equipment casing is mainly composed of carbon fiber,
It has a great noise prevention effect and can be lightweight.
Furthermore, the withstand voltage can be increased even when high voltage generating equipment is housed.
第１図は本発明による電気機器筐体の構成材の
一実施例、第２図は構成材の製造説明図、第３図
は本発明による電気機器筐体の一実施例である。
１……カーボン繊維体、２……ガラス繊維体。
FIG. 1 shows an example of the constituent material of an electrical equipment casing according to the present invention, FIG. 2 is an explanatory diagram for manufacturing the constituent material, and FIG. 3 shows an embodiment of the electrical equipment casing according to the invention. 1... Carbon fiber body, 2... Glass fiber body.
Claims (1)
において、該筐体を、カーボン繊維による織布若
しくは不織布に樹脂を含浸させて形成した少なく
とも１枚のカーボン繊維体と、ガラス繊維による
織布若しくは不織布にフエライト粉末含有の樹脂
を含浸させて形成した少なくとも１枚のガラス繊
維体との重ね合せ構造体で形成することを特徴と
する電気機器筐体。 ２ 前記筐体の内面がガラス繊維体となるように
形成するごとき特許請求の範囲第１項の電気機器
筐体。[Scope of Claims] 1. An electrical equipment housing for shielding internal and external electromagnetic waves, the housing comprising at least one carbon fiber body formed by impregnating a resin into a woven or nonwoven carbon fiber fabric; An electrical equipment casing characterized in that it is formed of a laminated structure with at least one glass fiber body formed by impregnating a woven or nonwoven glass fiber fabric with a resin containing ferrite powder. 2. The electrical equipment casing according to claim 1, wherein the inner surface of the casing is formed of a glass fiber body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56170164A JPS5871700A (en) | 1981-10-26 | 1981-10-26 | Housing for electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56170164A JPS5871700A (en) | 1981-10-26 | 1981-10-26 | Housing for electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5871700A JPS5871700A (en) | 1983-04-28 |
| JPH02880B2 true JPH02880B2 (en) | 1990-01-09 |
Family
ID=15899863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56170164A Granted JPS5871700A (en) | 1981-10-26 | 1981-10-26 | Housing for electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5871700A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017998A (en) * | 1983-07-11 | 1985-01-29 | ソニー株式会社 | Radio wave shielding material |
| JPS60146398U (en) * | 1984-03-07 | 1985-09-28 | ティーディーケイ株式会社 | shield case |
| JPS62111500A (en) * | 1985-11-08 | 1987-05-22 | 株式会社デンソー | Electromagnetic wave reflecting unit |
| JPH0712119B2 (en) * | 1988-11-04 | 1995-02-08 | 北川工業株式会社 | Materials for housing electronic components |
| JPH0645781A (en) * | 1992-07-22 | 1994-02-18 | Uniden Corp | Electromagnetic wave shielding structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550491Y2 (en) * | 1976-08-19 | 1980-11-25 | ||
| JPS5460504A (en) * | 1977-10-24 | 1979-05-16 | Toray Industries | Radio wave shielding material |
| JPS5616996U (en) * | 1979-07-18 | 1981-02-14 | ||
| JPS5692213U (en) * | 1979-12-17 | 1981-07-22 |
-
1981
- 1981-10-26 JP JP56170164A patent/JPS5871700A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5871700A (en) | 1983-04-28 |
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