JP2001185889A - Electronic equipment - Google Patents
Electronic equipmentInfo
- Publication number
- JP2001185889A JP2001185889A JP36717599A JP36717599A JP2001185889A JP 2001185889 A JP2001185889 A JP 2001185889A JP 36717599 A JP36717599 A JP 36717599A JP 36717599 A JP36717599 A JP 36717599A JP 2001185889 A JP2001185889 A JP 2001185889A
- Authority
- JP
- Japan
- Prior art keywords
- electronic device
- shield member
- housing
- conductive
- shield
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、パーソナルコンピ
ュータなどの電磁波シールド対策を必要とする電子機器
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a personal computer which requires measures against electromagnetic wave shielding.
【０００２】[0002]
【従来の技術】従来、パーソナルコンピュータなどの電
子機器は内部に電磁波を発生する部品が実装された電気
回路基板を有するため、電子機器の外殻を形成する筐体
などに電磁波シールド対策を行っていた。2. Description of the Related Art Conventionally, electronic equipment such as a personal computer has an electric circuit board on which components for generating electromagnetic waves are mounted. Therefore, measures against electromagnetic wave shielding are taken for a casing forming an outer shell of the electronic equipment. Was.
【０００３】以下、電磁波シールドを行った従来の電子
機器である携帯用パーソナルコンピュータ（以下携帯パ
ソコン）について説明する。[0003] A portable personal computer (hereinafter referred to as a portable personal computer), which is a conventional electronic device that performs electromagnetic wave shielding, will be described below.
【０００４】図２は、従来の携帯パソコンの分解斜視図
である。図において、２１は携帯パソコンの上部筐体
で、入力装置であるキーボード２２等が載置され、表示
部２３が取り付けられる。２４は、上部筐体２１ととも
に携帯パソコンの外殻を形成する下部筐体であり、非導
電性のプラスチック製である。上部筐体２１と下部筐体
２４の内部には、電磁波を発生する部品２５等が実装さ
れた電気回路基板２６や記憶装置であるディスクドライ
ブ装置２７等が収納されており、電気回路基板２６の上
下には金属製のシールド板２８および２９が配置されて
いる。FIG. 2 is an exploded perspective view of a conventional portable personal computer. In the figure, reference numeral 21 denotes an upper housing of a portable personal computer, on which a keyboard 22 or the like as an input device is placed and a display unit 23 is attached. Reference numeral 24 denotes a lower housing which forms an outer shell of the portable personal computer together with the upper housing 21 and is made of non-conductive plastic. Inside the upper housing 21 and the lower housing 24, an electric circuit board 26 on which a component 25 for generating electromagnetic waves and the like are mounted and a disk drive device 27 as a storage device are housed. Metal shield plates 28 and 29 are arranged above and below.
【０００５】以上のように構成された携帯パソコンにお
いて、電磁波シールドは、電気回路基板２６上での対策
の他に、電磁波を携帯パソコンの外殻の外に規定以上漏
洩させない為に金属製のシールド板２８、２９で電気回
路基板２６を覆うことによって達成される。金属製のシ
ールド板は通常、冷間圧延鋼板やアルミニウム板やブリ
キ板などの板材をプレス加工したものが用いられる。In the portable personal computer constructed as described above, the electromagnetic wave shield is not only a countermeasure on the electric circuit board 26 but also a metal shield for preventing the electromagnetic wave from leaking out of the outer shell of the portable personal computer more than specified. This is achieved by covering the electric circuit board 26 with the plates 28, 29. As the metal shield plate, one obtained by pressing a plate material such as a cold-rolled steel plate, an aluminum plate, and a tin plate is usually used.
【０００６】また近年では、外殻筐体自身をマグネシウ
ム合金などの金属で形成し、筐体にシールド効果を持た
せ内部のシールド板を省いたものも現れている。In recent years, there has appeared a case in which the outer casing itself is formed of a metal such as a magnesium alloy, and the casing has a shielding effect and the inner shield plate is omitted.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、このよ
うな電磁波シールドを行った従来の携帯パソコンでは、
シールド板として、冷間圧延鋼板や、アルミニウム板、
ブリキ板などの金属板をプレス加工したものを用いた
り、筐体自身が金属製であったりするため、重量が大き
くなり、軽量化を目的とした携帯パソコンには向かな
い。このため近年の携帯パソコンは、上部筐体および下
部筐体に、プラスチック材料を成形加工したものに銅−
ニッケルの無電解メッキ処理をしたり、銅又は銀の導電
塗装をしたものを用いることもある。しかし、無電解メ
ッキや導電塗装を直接施したプラスチック部品はプラス
チック材料のリサイクルが困難であり、プラスチックの
環境負荷低減化を図れない。However, in a conventional portable personal computer having such an electromagnetic wave shield,
As a shield plate, cold rolled steel plate, aluminum plate,
Since a pressed metal plate such as a tin plate is used, or the housing itself is made of metal, the weight increases, and it is not suitable for a portable personal computer aimed at reducing the weight. For this reason, portable personal computers in recent years use a plastic material molded and processed in an upper case and a lower case.
In some cases, electroless plating of nickel or conductive coating of copper or silver is used. However, plastic parts directly subjected to electroless plating or conductive coating are difficult to recycle plastic materials, and the environmental load of plastics cannot be reduced.
【０００８】本発明はこのような従来の課題を解消する
もので、携帯パソコンを軽量化し、かつ、プラスチック
材料のリサイクル化を促進することを目的とする。An object of the present invention is to solve such a conventional problem and to reduce the weight of a portable personal computer and promote the recycling of plastic materials.
【０００９】[0009]
【課題を解決するための手段】この目的を達成するため
に、本発明の電子機器は、電子機器の外殻を形成する非
導電性の筐体に、非導電性の材料の表面に導電性メッキ
を施した軽量のシールド部材を密着して設けたものであ
る。In order to achieve this object, an electronic apparatus according to the present invention comprises a non-conductive casing forming an outer shell of the electronic apparatus, and a non-conductive material provided on a surface of a non-conductive material. A light-weight shield member with plating is provided in close contact therewith.
【００１０】これにより、金属製のシールド板を必要と
せず、電子機器の軽量化を実現できるとともに、電子機
器の筐体に無電解メッキや導電塗装を施す必要もないた
め、使用プラスチック材料を生地のままで製品に使用で
き、従ってプラスチックのリサイクル化を促進できる。[0010] This eliminates the need for a metal shield plate, reduces the weight of the electronic device, and eliminates the need to apply electroless plating or conductive coating to the housing of the electronic device. It can be used as it is in products, thus promoting plastic recycling.
【００１１】[0011]
【発明の実施の形態】本発明の請求項１に記載の発明
は、電磁波を発生する部品が実装された電気回路基板を
内部に有する電子機器において、前記電子機器の外殻を
形成する非導電性の筐体と、前記筐体に密着して設けら
れ、非導電性の材料の表面に導電性メッキを施したシー
ルド部材とを備えたことを特徴とする電子機器で、電子
機器の外殻とシールド部材に非導電性の材料を用いるた
め、電子機器の軽量化を実現できるとともに、筐体材料
のリサイクル化を促進できるという作用を有する。DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 of the present invention is directed to an electronic device having an electric circuit board on which a component for generating electromagnetic waves is mounted, wherein the non-conductive material forms an outer shell of the electronic device. An electronic device, comprising: an electrically conductive housing; and a shield member provided in close contact with the housing and having a surface of a non-conductive material plated with conductive material. Since a non-conductive material is used for the shield member and the shield member, it is possible to reduce the weight of the electronic device and to promote recycling of the housing material.
【００１２】本発明の請求項２に記載の発明は、請求項
１記載の電子機器において、シールド部材は、シート状
の材料を成形したものであることを特徴とするもので、
薄肉で軽量であるため、電子機器の軽量化を実現できる
とともに、リサイクル化が不可能な材料を減らすことが
できるという作用を有する。According to a second aspect of the present invention, in the electronic device according to the first aspect, the shield member is formed by molding a sheet material.
Since it is thin and lightweight, it has the effect of reducing the weight of electronic devices and reducing the number of materials that cannot be recycled.
【００１３】本発明の請求項３に記載の発明は、請求項
２記載の電子機器において、シールド部材は、ポリカー
ボネートシートまたはＰＥＴシートの表面に導電性メッ
キを施したものであることを特徴とするもので、薄肉の
成形に適するという作用を有する。According to a third aspect of the present invention, in the electronic device according to the second aspect, the shield member is formed by applying a conductive plating to a surface of a polycarbonate sheet or a PET sheet. It has the effect of being suitable for thin wall molding.
【００１４】本発明の請求項４に記載の発明は、請求項
１記載の電子機器において、シールド部材の両面に導電
性メッキを施したことを特徴とするもので、１枚のシー
ルド部材でシールド効果を高めることができるという作
用を有する。According to a fourth aspect of the present invention, there is provided the electronic apparatus according to the first aspect, wherein both sides of the shield member are provided with conductive plating. It has the effect that the effect can be enhanced.
【００１５】本発明の請求項５に記載の発明は、請求項
１記載の電子機器において、シールド部材を複数枚密着
させて用いることを特徴とするもので、シールド効果を
電磁波の強さに応じて可変にすることができるという作
用を有する。According to a fifth aspect of the present invention, in the electronic device according to the first aspect, a plurality of shield members are used in close contact with each other, and the shielding effect is changed according to the intensity of the electromagnetic wave. Has the effect that it can be made variable.
【００１６】本発明の請求項６に記載の発明は、請求項
１記載の電子機器において、シールド部材は、電子機器
の外殻を形成する筐体の内面と略同形状に成形され、前
記筐体内面に密着して設けられることを特徴とするもの
で、筐体の内面に密着させられるため、シールド効果が
安定するという作用を有する。According to a sixth aspect of the present invention, in the electronic device according to the first aspect, the shield member is formed in substantially the same shape as an inner surface of a casing forming an outer shell of the electronic instrument. This is characterized in that it is provided in close contact with the inner surface of the body, and has an effect that the shielding effect is stabilized because it is closely attached to the inner surface of the housing.
【００１７】本発明の請求項７に記載の発明は、請求項
１記載の電子機器において、シールド部材の筐体と密着
する面のみに導電性メッキを施し、反対側の面は導電性
メッキを施さないことを特徴とするもので、外殻の内面
側は非導電性であるため、電子機器内部の活電部と接触
し短絡するなどの事故の恐れがなくなるという作用を有
する。According to a seventh aspect of the present invention, in the electronic device according to the first aspect, only the surface of the shield member that is in close contact with the housing is plated with the conductive material, and the opposite surface is plated with the conductive material. Since the inner surface of the outer shell is non-conductive, there is an effect that an accident such as a short circuit caused by contact with a live part inside the electronic device is eliminated.
【００１８】本発明の請求項８に記載の発明は、請求項
１記載の電子機器において、シールド部材は、電子機器
の外殻を形成する筐体の外面と略同形状に成形され、前
記筐体外面に密着して設けられることを特徴とするもの
で、シールド部材を外装材としても用いることができる
という作用を有する。According to an eighth aspect of the present invention, in the electronic device according to the first aspect, the shield member is formed to have substantially the same shape as an outer surface of a case forming an outer shell of the electronic device. The shield member is provided in close contact with the outer surface of the body, and has an effect that the shield member can be used as an exterior material.
【００１９】本発明の請求項９に記載の発明は、請求項
１記載の電子機器において、シールド部材を、フィルム
状としたことを特徴とするもので、筐体との密着度を上
げられるという作用を有する。According to a ninth aspect of the present invention, in the electronic device of the first aspect, the shielding member is formed in a film shape, and the degree of adhesion to the housing can be increased. Has an action.
【００２０】以下、本発明の実施の形態について、図面
を参照しながら説明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００２１】（実施の形態１）図１は本発明の一実施の
形態の電子機器である携帯パソコンの分解斜視図であ
る。図において、１は携帯パソコンの上部筐体で、入力
装置であるキーボード２等が載置され、表示部３が取り
付けられる。４は、上部筐体１とともに携帯パソコンの
外殻を形成する下部筐体であり、非導電性のプラスチッ
ク製である。上部筐体１と下部筐体４の内部には、電磁
波を発生する部品５等が実装された電気回路基板６や記
憶装置であるディスクドライブ装置７等が収納されてい
る。そして、上部筐体１と下部筐体４の内側にはそれぞ
れ筐体の内面と略同形状に成形されたシールド部材８お
よび９が配置されている。シールド部材８および９は樹
脂製のシートを成形し表面に銅−ニッケルメッキなどの
導電性メッキを施している。樹脂製のシートには薄肉の
シート成形に適した０．１〜０．２ｍｍ厚のポリカーボ
ネートシートまたはＰＥＴシートが用いられる。成形は
一般に真空成形などの方法によって行われる。(Embodiment 1) FIG. 1 is an exploded perspective view of a portable personal computer as an electronic apparatus according to an embodiment of the present invention. In the figure, reference numeral 1 denotes an upper housing of a portable personal computer, on which a keyboard 2 or the like as an input device is placed, and a display unit 3 is attached. Reference numeral 4 denotes a lower housing which forms an outer shell of the portable personal computer together with the upper housing 1, and is made of non-conductive plastic. Inside the upper housing 1 and the lower housing 4, an electric circuit board 6 on which components 5 for generating electromagnetic waves and the like are mounted, a disk drive device 7 as a storage device, and the like are housed. Inside the upper housing 1 and the lower housing 4, shield members 8 and 9 formed in substantially the same shape as the inner surface of the housing are arranged. The shield members 8 and 9 are formed by molding a resin sheet and applying a conductive plating such as copper-nickel plating on the surface. As the resin sheet, a 0.1 to 0.2 mm thick polycarbonate sheet or PET sheet suitable for forming a thin sheet is used. Molding is generally performed by a method such as vacuum molding.
【００２２】以上のように構成された携帯パソコンにお
いて、電磁波シールドは、電気回路基板６上での対策の
他に、導電性メッキを施したシールド部材８、９で電気
回路基板６を覆うことによって達成される。シールド部
材８、９は薄肉の樹脂製のシートであるため、極めて軽
量で、携帯パソコン全体の重量に占める割合は極小に過
ぎない。また、シールド部材８、９は筐体の内面と略同
形状に成形されており、筐体内面に密着させられるた
め、シールド効果が安定する。また、筐体自身に無電解
メッキや導電塗装を施さないため、筐体のリサイクルが
容易である。In the portable personal computer constructed as described above, the electromagnetic wave shield is provided by covering the electric circuit board 6 with the shield members 8 and 9 plated with conductive plating, in addition to the measures on the electric circuit board 6. Achieved. Since the shield members 8 and 9 are thin resin sheets, they are extremely lightweight, and their proportion in the total weight of the portable personal computer is only minimal. Further, the shield members 8 and 9 are formed in substantially the same shape as the inner surface of the housing, and are stuck to the inner surface of the housing, so that the shielding effect is stabilized. In addition, since the casing itself is not subjected to electroless plating or conductive coating, the casing can be easily recycled.
【００２３】また、シールド部材を複数枚密着させて用
いることも容易であり、内部の電磁波の強さに応じてシ
ールド効果を可変にすることができる。Also, it is easy to use a plurality of shield members in close contact with each other, and the shield effect can be varied according to the strength of the internal electromagnetic waves.
【００２４】また、シールド部材の両面に導電性メッキ
を施すようにすれば、１枚のシールド部材でシールド効
果を高めることができる。Further, if conductive plating is applied to both surfaces of the shield member, the shield effect can be enhanced with one shield member.
【００２５】また、シールド部材の筐体と密着する面の
みに導電性メッキを施し、反対側の面は導電性メッキを
施さないようにすれば、外殻の内面側は非導電性である
ため、電子機器内部の活電部と接触し短絡するなどの事
故の恐れがなくなり、基板上に絶縁シートを追加する必
要も無くなる。If only the surface of the shield member that is in close contact with the housing is coated with conductive plating and the opposite surface is not coated with conductive plating, the inner surface of the outer shell is non-conductive. This eliminates the risk of an accident such as a short circuit caused by contact with a live part inside the electronic device, and eliminates the need to add an insulating sheet on the substrate.
【００２６】また、シールド部材を電子機器の外殻を形
成する筐体の外面と略同形状に成形し筐体外面に密着し
て設けるようにすれば、シールド部材を外装材としても
用いることができ、筐体をプラスチック材料の生地のま
まで使用することができる。Further, if the shield member is formed to have substantially the same shape as the outer surface of the housing forming the outer shell of the electronic device and is provided in close contact with the outer surface of the housing, the shield member can be used also as an exterior material. It is possible to use the housing as it is with the fabric of the plastic material.
【００２７】なお、本実施の形態では、シールド部材で
外殻筐体の内面全体を覆うようにしたが、シールド部材
は必ずしも全体を覆う必要はなく、最小限必要な範囲を
覆うようにするだけでもよい。In the present embodiment, the shield member covers the entire inner surface of the outer casing. However, the shield member does not necessarily cover the entire surface, but only covers the minimum necessary range. May be.
【００２８】また、シールド部材は真空成形によってシ
ートを成形するようにしたが、ブロー成形などの方法を
用いて薄肉の成形を行ってもよい。Although the shield member is formed into a sheet by vacuum forming, a thin wall may be formed by using a method such as blow molding.
【００２９】また、シールド部材は０．１〜０．２ｍｍ
厚のシート状としたが、これに限定されるものではな
く、さらに薄いいわゆるフィルム状のものでもよいこと
は言うまでもない。フィルム状であればさらに筐体との
密着度を上げることができる。The shield member is 0.1 to 0.2 mm
Although a thick sheet is used, the present invention is not limited to this. Needless to say, a thin film may be used. If it is in the form of a film, the degree of adhesion to the housing can be further increased.
【００３０】[0030]
【発明の効果】以上のように、電子機器の外殻を形成す
る非導電性の筐体に、非導電性の材料の表面に導電性メ
ッキを施した軽量のシールド部材を密着して設けること
で、携帯パソコンの軽量化、使用プラスチックのリサイ
クル化に効果を有する。また、携帯パソコンが必要とす
るシールド効果に応じて、シートに処理する銅−ニッケ
ルの無電解メッキを片面、又は両面にすることで、効果
を可変でき、更に、枚数を増やすことで一層の効果を上
げることもできる。As described above, a light-weight shield member in which the surface of a non-conductive material is plated with a conductive material is provided in close contact with the non-conductive case forming the outer shell of the electronic device. This has the effect of reducing the weight of portable personal computers and recycling used plastics. Also, depending on the shielding effect required by the portable personal computer, the effect can be varied by making the electroless plating of copper-nickel on the sheet one side or both sides, and the effect can be further increased by increasing the number of sheets. Can also be raised.
【図１】本発明の一実施の形態の携帯パソコンの分解斜
視図FIG. 1 is an exploded perspective view of a portable personal computer according to an embodiment of the present invention.
【図２】従来の携帯パソコンの分解斜視図FIG. 2 is an exploded perspective view of a conventional portable personal computer.
１ 上部筐体 ４ 下部筐体 ６ 電気回路基板 ８、９ シールド部材 DESCRIPTION OF SYMBOLS 1 Upper case 4 Lower case 6 Electric circuit board 8, 9 Shield member
Claims (9)
路基板を内部に有する電子機器において、前記電子機器
の外殻を形成する非導電性の筐体と、前記筐体に密着し
て設けられ、非導電性の材料の表面に導電性メッキを施
したシールド部材とを備えたことを特徴とする電子機
器。An electronic device having therein an electric circuit board on which a component generating electromagnetic waves is mounted, wherein the non-conductive case forms an outer shell of the electronic device, and is provided in close contact with the case. And a shield member having a surface of a non-conductive material plated with a conductive material.
たものであることを特徴とする請求項１記載の電子機
器。2. The electronic device according to claim 1, wherein the shield member is formed by molding a sheet material.
またはＰＥＴシートの表面に導電性メッキを施したもの
であることを特徴とする請求項２記載の電子機器。3. The electronic device according to claim 2, wherein the shield member is formed by applying a conductive plating to a surface of a polycarbonate sheet or a PET sheet.
たことを特徴とする請求項１記載の電子機器。4. The electronic device according to claim 1, wherein conductive plating is applied to both surfaces of the shield member.
とを特徴とする請求項１記載の電子機器。5. The electronic apparatus according to claim 1, wherein a plurality of shield members are used in close contact.
る筐体の内面と略同形状に成形され、前記筐体内面に密
着して設けられることを特徴とする請求項１記載の電子
機器。6. The electronic device according to claim 1, wherein the shield member is formed in substantially the same shape as an inner surface of a housing forming an outer shell of the electronic device, and is provided in close contact with the inner surface of the housing. machine.
電性メッキを施し、反対側の面は導電性メッキを施さな
いことを特徴とする請求項１記載の電子機器。7. The electronic apparatus according to claim 1, wherein only the surface of the shield member that is in close contact with the housing is plated with conductive material, and the opposite surface is not plated with conductive material.
る筐体の外面と略同形状に成形され、前記筐体外面に密
着して設けられることを特徴とする請求項１記載の電子
機器。8. The electronic device according to claim 1, wherein the shield member is formed in substantially the same shape as an outer surface of a housing forming an outer shell of the electronic device, and is provided in close contact with the outer surface of the housing. machine.
特徴とする請求項１記載の電子機器。9. The electronic device according to claim 1, wherein the shield member is formed in a film shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36717599A JP2001185889A (en) | 1999-12-24 | 1999-12-24 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36717599A JP2001185889A (en) | 1999-12-24 | 1999-12-24 | Electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001185889A true JP2001185889A (en) | 2001-07-06 |
Family
ID=18488661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36717599A Pending JP2001185889A (en) | 1999-12-24 | 1999-12-24 | Electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001185889A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007208171A (en) * | 2006-02-06 | 2007-08-16 | Nissan Motor Co Ltd | Electronic component attaching structure for vehicle |
| US9480191B2 (en) | 2012-09-20 | 2016-10-25 | Fujitsu Limited | Electronic apparatus having integrated shielding film |
-
1999
- 1999-12-24 JP JP36717599A patent/JP2001185889A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007208171A (en) * | 2006-02-06 | 2007-08-16 | Nissan Motor Co Ltd | Electronic component attaching structure for vehicle |
| JP4665784B2 (en) * | 2006-02-06 | 2011-04-06 | 日産自動車株式会社 | Electronic parts mounting structure for vehicles |
| US8026861B2 (en) | 2006-02-06 | 2011-09-27 | Nissan Motor Co., Ltd. | Shielding device for vehicular electronic components |
| US9480191B2 (en) | 2012-09-20 | 2016-10-25 | Fujitsu Limited | Electronic apparatus having integrated shielding film |
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