JPH11307978A - Electronic apparatus - Google Patents
Electronic apparatusInfo
- Publication number
- JPH11307978A JPH11307978A JP11175998A JP11175998A JPH11307978A JP H11307978 A JPH11307978 A JP H11307978A JP 11175998 A JP11175998 A JP 11175998A JP 11175998 A JP11175998 A JP 11175998A JP H11307978 A JPH11307978 A JP H11307978A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- frame
- side wall
- electronic device
- shield plate
- 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
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、特に、テレビジョ
ンチューナや、ＦＭラジオチューナなどの電子機器に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic devices such as television tuners and FM radio tuners.
【０００２】[0002]
【従来の技術】図４は、従来の電子機器を示す斜視図、
図５は、従来の電子機器を示す断面図、図６は、従来の
電子機器からカバーを外した状態を示す斜視図である。
図４〜図６に示すように、従来の電子機器、例えばテレ
ビジョンチューナなどの電子機器は、導電性の金属板な
どを折り曲げて形成された箱型の枠体１を有し、この枠
体１は、４つの側壁１ａと、その上部に開放された開口
部１ｂと、下部に開放された開口部１ｃとを有してい
る。また、開口部１ｂに近接した側壁１ａの外周部に
は、外方に突出した複数個の凸部１ｅが設けられてい
る。また、枠体１は、枠体１内に設けられ、該枠体１の
側壁１ａと電気的に接続された複数枚（例えば２枚）の
シールド板４を有し、このシールド板４は、枠体１の開
口部１ｃに対して垂直であって、且つ枠体１の内部を複
数個の領域に仕切るように配置されている。2. Description of the Related Art FIG. 4 is a perspective view showing a conventional electronic device.
FIG. 5 is a sectional view showing a conventional electronic device, and FIG. 6 is a perspective view showing a state where a cover is removed from the conventional electronic device.
As shown in FIGS. 4 to 6, a conventional electronic device, for example, an electronic device such as a television tuner, has a box-shaped frame 1 formed by bending a conductive metal plate or the like. 1 has four side walls 1a, an opening 1b opened to the upper part, and an opening 1c opened to the lower part. Further, a plurality of convex portions 1e protruding outward are provided on the outer peripheral portion of the side wall 1a close to the opening 1b. The frame 1 has a plurality of (for example, two) shield plates 4 provided in the frame 1 and electrically connected to the side wall 1a of the frame 1, and the shield plate 4 is The frame 1 is arranged so as to be perpendicular to the opening 1 c and partition the inside of the frame 1 into a plurality of regions.
【０００３】プリント配線基板２は、平板状の例えばガ
ラス入りエポキシ樹脂材料から成り、図示していない
が、一方の面側には、集積回路（ＩＣ）やコイルなどが
載置され、他方の面側には、チップ抵抗器やチップコン
デンサーなどが載置されている。また、プリント配線基
板２は、枠体１の開放部１ｃに一方の面側を内側にして
枠体１に仮止めされて配置され、プリント配線基板２の
他方の面側の接地パターンは、枠体１と半田によって電
気的に接続され、これによって、プリント配線基板２が
枠体１に固定されている。この固定された状態で、枠体
１の内部のシールド板４に区切られた複数個（例えば３
個）の領域に収納された電子回路は、シールド板４によ
って、各電子回路の相互の干渉が防止されている。The printed wiring board 2 is made of, for example, a flat epoxy resin material containing glass. Although not shown, an integrated circuit (IC), a coil, and the like are mounted on one surface side and the other surface is mounted thereon. On the side, chip resistors and chip capacitors are mounted. Further, the printed wiring board 2 is temporarily fixed to the opening 1c of the frame 1 with one surface side inward, and is disposed on the frame 1. The ground pattern on the other surface of the printed wiring board 2 is The printed circuit board 2 is fixed to the frame 1 by being electrically connected to the body 1 by soldering. In this fixed state, a plurality (for example, 3) divided by the shield plate 4 inside the frame body 1.
The electronic circuit housed in the area of the electronic circuit is prevented by the shield plate 4 from interfering with each other.
【０００４】カバー３は、導電性の金属板を切断、折り
曲げ加工することによって形成され、平板部３ａと、平
板部３ａの外周部を折り曲げて形成された複数個の爪部
３ｂとを有している。また、平板部３ａにおける前記シ
ールド板４の上方に位置する箇所には、略Ｕ字状の切り
込み部３ｅが形成されていると共に、これらの略Ｕ字状
の領域に平板部３ａから下方に突出された略くの字状に
曲げ加工された舌片部３ｆが形成されている。また、舌
片部３ｆの付け根部３ｇは、舌片部３ｆの配置されてい
る箇所によっては、爪部３ｂの近傍に配置される。ま
た、カバー３は、爪部３ｂが、枠体１に設けられた凸部
１ｅに係止されて、開口部１ｂを覆うように取り付けら
れている。The cover 3 is formed by cutting and bending a conductive metal plate, and has a flat plate portion 3a and a plurality of claws 3b formed by bending the outer peripheral portion of the flat plate portion 3a. ing. A substantially U-shaped cut portion 3e is formed at a position of the flat plate portion 3a located above the shield plate 4, and projects into the substantially U-shaped region downward from the flat plate portion 3a. A tongue piece 3f is formed, which is bent into a substantially rectangular shape. Further, the base 3g of the tongue piece 3f is arranged near the claw 3b depending on where the tongue piece 3f is arranged. Further, the cover 3 is attached so that the claw portions 3b are engaged with the convex portions 1e provided on the frame body 1 and cover the opening portions 1b.
【０００５】このような構成において、カバー３の爪部
３ｂが、枠体１の凸部１ｅに係止されることにより、カ
バー３が、枠体１に取り付けられる。この結果、カバー
３が、爪部３ｂ、凸部１ｅ及び側壁１ａを介して接地さ
れる。また、カバー３は、下方に突出された舌片部３ｆ
がシールド板４の上端部４ａに接触するためシールド板
４及び側壁１ａを介して接地される。In such a configuration, the cover 3 is attached to the frame 1 by engaging the claw 3b of the cover 3 with the projection 1e of the frame 1. As a result, the cover 3 is grounded via the claw 3b, the protrusion 1e, and the side wall 1a. The cover 3 is provided with a tongue piece 3f protruding downward.
Is in contact with the upper end 4a of the shield plate 4 and is grounded via the shield plate 4 and the side wall 1a.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上述し
た従来の電子機器は、カバー３とシールド板４との間に
働く圧力が舌片部３ｆの付け根部３ｇに集中する。この
ためこの圧力が強いと、ときとして、カバー３の爪部３
ｂが、枠体１の凸部１ｅから外れ、しかも、カバー３と
枠体１との接触が不安定になるという問題点があった。
そして、また、舌片部３ｆの長さが長いと、枠体１内の
シールド板４とカバー３との接触が弱く、接触が不安定
になるという問題点があった。However, in the above-mentioned conventional electronic device, the pressure acting between the cover 3 and the shield plate 4 is concentrated on the base 3g of the tongue piece 3f. For this reason, if this pressure is strong, sometimes the claw 3
b is disengaged from the convex portion 1e of the frame 1, and the contact between the cover 3 and the frame 1 becomes unstable.
Further, when the length of the tongue piece 3f is long, there is a problem that the contact between the shield plate 4 and the cover 3 in the frame 1 is weak and the contact becomes unstable.
【０００７】そこで、本発明の電子機器では、上述の問
題点を解決するものであり、その目的は、枠体１とシー
ルド板４とカバー３とが確実に接触し、シールド効果を
高く保つことの出来る電子機器を提供することである。[0007] Therefore, the electronic device of the present invention solves the above-mentioned problems, and its purpose is to ensure that the frame 1, the shield plate 4 and the cover 3 are in contact with each other, and that the shielding effect is kept high. It is to provide an electronic device that can perform.
【０００８】[0008]
【課題を解決するための手段】本発明の電子機器は、側
壁と開口部とを有する導電性の箱型の枠体と、該枠体内
に設けられ、該枠体と電気的に接続されたシールド板
と、爪部を有し、該爪部を前記側壁に係止して前記枠体
の前記開口部を覆うように配設されたカバーとを備え、
該カバーには、前記シールド板の上端部と対向する位置
で前記枠体内部に突出する突部と、前記爪部の近傍で、
該突部と前記爪部との間に設けられた長孔とが形成さ
れ、前記カバーの前記突部が前記シールド板の上端部に
弾接していることである。An electronic apparatus according to the present invention has a conductive box-shaped frame having a side wall and an opening, and is provided in the frame and electrically connected to the frame. A shield plate, and a cover having a claw portion, the cover disposed to cover the opening of the frame body by locking the claw portion to the side wall,
The cover has a protrusion protruding into the frame at a position facing the upper end of the shield plate, and near the claw,
An elongated hole is formed between the protrusion and the claw, and the protrusion of the cover is in elastic contact with an upper end of the shield plate.
【０００９】また、本発明の電子機器は、長孔が、枠体
の側壁と平行に設けられていることである。In the electronic device according to the present invention, the long hole is provided in parallel with the side wall of the frame.
【００１０】[0010]
【発明の実施の形態】以下、図面を用いて本発明の電子
機器について説明する。図１は、本発明の電子機器を示
す斜視図、図２は、本発明の電子機器を示す断面図、図
３は、本発明の電子機器からカバーを外した状態を示す
斜視図である。なお、従来の電子機器と同一構成につい
ては、同一符号を付与してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic device according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an electronic device of the present invention, FIG. 2 is a sectional view showing the electronic device of the present invention, and FIG. 3 is a perspective view showing a state where a cover is removed from the electronic device of the present invention. The same components as those of the conventional electronic device are denoted by the same reference numerals.
【００１１】図１〜図３に示すように、本発明の電子機
器、例えばテレビジョンチューナなどの電子機器は、導
電性の金属板などを折り曲げて形成された箱型の枠体１
を有し、この枠体１は、四方を囲む４つの側壁１ａと、
その上部に開放された開口部１ｂと、下部に開放された
開口部１ｃとを有している。また、開口部１ｂに近接し
た側壁１ａの外周部には、外方に突出した複数個の凸部
１ｅが設けられている。また、枠体１は、枠体１内に設
けられ、該枠体１の側壁１ａと電気的に接続された複数
枚（例えば２枚）のシールド板４を有し、このシールド
板４は、枠体１の開口部１ｃに対して垂直であって、且
つ枠体１の内部を複数個の領域に仕切るように配置され
ている。As shown in FIGS. 1 to 3, an electronic device of the present invention, for example, an electronic device such as a television tuner, has a box-shaped frame 1 formed by bending a conductive metal plate or the like.
The frame 1 has four side walls 1a surrounding four sides,
It has an opening 1b opened to the upper part and an opening 1c opened to the lower part. Further, a plurality of convex portions 1e protruding outward are provided on the outer peripheral portion of the side wall 1a close to the opening 1b. The frame 1 has a plurality of (for example, two) shield plates 4 provided in the frame 1 and electrically connected to the side wall 1a of the frame 1, and the shield plate 4 is The frame 1 is arranged so as to be perpendicular to the opening 1 c and partition the inside of the frame 1 into a plurality of regions.
【００１２】プリント配線基板２は、平板状の例えばガ
ラス入りエポキシ樹脂材料から成り、図示していない
が、一方の面側には、集積回路（ＩＣ）やコイルなどが
載置され、他方の面側には、チップ抵抗器やチップコン
デンサーなどが載置されている。また、プリント配線基
板２は、枠体１の開放部１ｃに一方の面側を内側にして
枠体１に仮止めされて配置され、プリント配線基板２の
他方の面側の接地パターンは、枠体１と半田によって電
気的に接続され、これによって、プリント配線基板２が
枠体１に固定されている。この固定された状態で、枠体
１の内部のシールド板４に区切られた複数個（例えば３
個）の領域に収納された電子回路は、シールド板４によ
って、各電子回路の相互の干渉が防止されている。The printed wiring board 2 is made of, for example, an epoxy resin material containing glass in a flat plate shape, and although not shown, an integrated circuit (IC), a coil, and the like are mounted on one surface side and the other surface is mounted thereon. On the side, chip resistors and chip capacitors are mounted. Further, the printed wiring board 2 is temporarily fixed to the opening 1c of the frame 1 with one surface side inward, and is disposed on the frame 1. The ground pattern on the other surface of the printed wiring board 2 is The printed circuit board 2 is fixed to the frame 1 by being electrically connected to the body 1 by soldering. In this fixed state, a plurality (for example, 3) divided by the shield plate 4 inside the frame body 1.
The electronic circuit housed in the area of the electronic circuit is prevented by the shield plate 4 from interfering with each other.
【００１３】カバー３は、導電性の金属板を切断、折り
曲げ加工することによって形成され、平板部３ａと、平
板部３ａの外周部を下方に折り曲げて形成された複数個
の爪部３ｂとを有している。また、平板部３ａには、複
数個の幅狭なスリット状の長孔３ｃと、該長孔３ｃの近
傍にそれぞれ設けられ、平板部３ａから下方に突出され
た略半球状の突部３ｄとが設けられている。また、長孔
３ｃは、前記爪部３ｂの近傍で、且つ爪部３ｂに平行に
設けられ、そして、前記突部３ｄと爪部３ｂとの間に設
けられている。また、カバー３は、爪部３ｂが、枠体１
に設けられた凸部１ｅに係止されて、開口部１ｂを覆う
ように取り付けられている。また、長孔３ｃは、カバー
３が枠体１に取り付けられとき枠体１の側壁１ａと平行
に形成され、且つ、突部３ｄと側壁１ａとの間に設けら
れている。The cover 3 is formed by cutting and bending a conductive metal plate, and includes a flat plate portion 3a and a plurality of claw portions 3b formed by bending an outer peripheral portion of the flat plate portion 3a downward. Have. The flat plate portion 3a has a plurality of narrow slit-shaped long holes 3c and a substantially hemispherical protrusion 3d provided near the long hole 3c and protruding downward from the flat plate portion 3a. Is provided. The elongated hole 3c is provided near the claw 3b and parallel to the claw 3b, and is provided between the protrusion 3d and the claw 3b. Further, the cover 3 is configured such that the claw portion 3b is
And is attached so as to cover the opening 1b. The elongated hole 3c is formed parallel to the side wall 1a of the frame 1 when the cover 3 is attached to the frame 1, and is provided between the protrusion 3d and the side wall 1a.
【００１４】このような構成において、カバー３の爪部
３ｂが、枠体１の凸部１ｅに係止されることにより、カ
バー３が、枠体１に取り付けられる。この結果、カバー
３が、爪部３ｂ、凸部１ｅ及び側壁１ａを介して接地さ
れる。また、カバー３は、突部３ｄがシールド板４の上
端部４ａに当接するためシールド板４及び側壁１ａを介
して接地される。In such a configuration, the cover 3 is attached to the frame 1 by engaging the claw 3b of the cover 3 with the projection 1e of the frame 1. As a result, the cover 3 is grounded via the claw 3b, the protrusion 1e, and the side wall 1a. The cover 3 is grounded via the shield plate 4 and the side wall 1a because the protrusion 3d contacts the upper end 4a of the shield plate 4.
【００１５】なお、上述の本発明の電子機器における、
カバー３の長孔３ｃは、カバー３の突部３ｄと枠体１の
側壁１ａとの間にひとつのみ設けられた実施の形態につ
いて説明したが、これに限定されず、長孔を平行に複数
本設けても良い。In the electronic device of the present invention described above,
Although the embodiment in which only one long hole 3c of the cover 3 is provided between the protrusion 3d of the cover 3 and the side wall 1a of the frame 1 has been described, the present invention is not limited to this. A book may be provided.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の電子機器
によれば、カバーの突部とシールド板との接触圧力が強
くとも、この圧力は、長孔によって吸収されるのでカバ
ーの爪部に加えられることがなく、よって、爪部が枠体
の凸部から外れることはない。このため、カバーと枠体
との接触が確実に行うことができ、よって、カバーによ
るシールド効果が高くなり、枠体内に収納されたそれぞ
れの電子回路が外来雑音の影響を受けることを防止し、
また、電子回路が発生する雑音電波が枠体から外部へ漏
れることを防ぐことが出来るという効果を奏する。As described above, according to the electronic apparatus of the present invention, even if the contact pressure between the projection of the cover and the shield plate is strong, this pressure is absorbed by the elongated holes, so that the claw of the cover is formed. Therefore, the claw does not come off from the projection of the frame. For this reason, the contact between the cover and the frame body can be reliably performed, thereby increasing the shielding effect of the cover and preventing each electronic circuit housed in the frame body from being affected by external noise.
In addition, there is an effect that noise radio waves generated by the electronic circuit can be prevented from leaking from the frame to the outside.
【００１７】また、本発明の電子機器によれば、長孔
が、枠体の側壁と平行に設けられていることから、カバ
ーの接触圧力が強くとも、側壁と平行に設けられた長孔
によって、側壁側にかかる圧力を確実に吸収でき、この
ことからカバーと枠体との接触が一層確実に行うことが
出来る。Further, according to the electronic device of the present invention, since the long hole is provided in parallel with the side wall of the frame, even if the contact pressure of the cover is strong, the long hole provided in parallel with the side wall. Thus, the pressure applied to the side wall can be reliably absorbed, and the cover can be more reliably contacted with the frame.
【図１】本発明の電子機器の実施の形態を示す斜視図で
ある。FIG. 1 is a perspective view showing an embodiment of an electronic apparatus of the present invention.
【図２】本発明の電子機器の実施の形態を示す断面図で
ある。FIG. 2 is a cross-sectional view illustrating an embodiment of an electronic device of the present invention.
【図３】本発明の電子機器からカバーを外した状態を示
す斜視図である。FIG. 3 is a perspective view showing a state where a cover is removed from the electronic apparatus of the present invention.
【図４】従来の電子機器を示す斜視図である。FIG. 4 is a perspective view showing a conventional electronic device.
【図５】従来の電子機器を示す断面図である。FIG. 5 is a cross-sectional view illustrating a conventional electronic device.
【図６】従来の電子機器からカバーを外した状態を示す
斜視図である。FIG. 6 is a perspective view showing a state where a cover is removed from a conventional electronic device.
１ 枠体 １ａ 側壁 １ｂ、１ｃ 開口部 ３ カバー ３ａ 平板部 ３ｂ 爪部 ３ｃ 長孔 ３ｄ 突部 ３ｆ 舌片部 ４ シールド板 ４ａ 上端部 DESCRIPTION OF SYMBOLS 1 Frame 1a Side wall 1b, 1c Opening 3 Cover 3a Flat plate 3b Claw 3c Elongated hole 3d Projection 3f Tongue piece 4 Shield plate 4a Upper end
Claims (2)
枠体と、該枠体内に設けられ、該枠体と電気的に接続さ
れたシールド板と、爪部を有し、該爪部を前記側壁に係
止して前記枠体の前記開口部を覆うように配設されたカ
バーとを備え、該カバーには、前記シールド板の上端部
と対向する位置で前記枠体内部に突出する突部と、前記
爪部の近傍で、該突部と前記爪部との間に設けられた長
孔とが形成され、前記カバーの前記突部が前記シールド
板の上端部に弾接していることを特徴とする電子機器。A conductive box-shaped frame having a side wall and an opening, a shield plate provided in the frame and electrically connected to the frame, and a claw portion; A cover disposed so as to cover the opening of the frame by locking a claw portion to the side wall, wherein the cover has a position inside the frame at a position facing an upper end of the shield plate. And a long hole provided between the protrusion and the claw portion is formed near the claw portion, and the protrusion of the cover is resiliently formed at an upper end of the shield plate. An electronic device characterized by being in contact with.
に設けられてい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 elongated hole is provided in parallel with the side wall of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175998A JP3752382B2 (en) | 1998-04-22 | 1998-04-22 | Electronics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175998A JP3752382B2 (en) | 1998-04-22 | 1998-04-22 | Electronics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11307978A true JPH11307978A (en) | 1999-11-05 |
| JP3752382B2 JP3752382B2 (en) | 2006-03-08 |
Family
ID=14569479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11175998A Expired - Fee Related JP3752382B2 (en) | 1998-04-22 | 1998-04-22 | Electronics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3752382B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003069280A (en) * | 2001-08-23 | 2003-03-07 | Nintendo Co Ltd | Cartridge for game machine |
| JP2007073609A (en) * | 2005-09-05 | 2007-03-22 | Murata Mfg Co Ltd | Shielding case |
| CN1319428C (en) * | 2003-12-12 | 2007-05-30 | 阿尔卑斯电气株式会社 | Electronic circuit unit |
| JP2011054888A (en) * | 2009-09-04 | 2011-03-17 | Kyocera Corp | Shield structure and electronic apparatus |
| JP2013258378A (en) * | 2012-06-14 | 2013-12-26 | Kyocera Corp | Electronic apparatus and shield case |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506737A (en) * | 2016-11-07 | 2017-03-15 | 努比亚技术有限公司 | A kind of shield assembly and mobile terminal |
-
1998
- 1998-04-22 JP JP11175998A patent/JP3752382B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003069280A (en) * | 2001-08-23 | 2003-03-07 | Nintendo Co Ltd | Cartridge for game machine |
| CN1319428C (en) * | 2003-12-12 | 2007-05-30 | 阿尔卑斯电气株式会社 | Electronic circuit unit |
| JP2007073609A (en) * | 2005-09-05 | 2007-03-22 | Murata Mfg Co Ltd | Shielding case |
| JP4586688B2 (en) * | 2005-09-05 | 2010-11-24 | 株式会社村田製作所 | Shield case |
| JP2011054888A (en) * | 2009-09-04 | 2011-03-17 | Kyocera Corp | Shield structure and electronic apparatus |
| JP2013258378A (en) * | 2012-06-14 | 2013-12-26 | Kyocera Corp | Electronic apparatus and shield case |
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| Publication number | Publication date |
|---|---|
| JP3752382B2 (en) | 2006-03-08 |
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