JPH0627996Y2 - Case for high frequency circuit device - Google Patents
Case for high frequency circuit deviceInfo
- Publication number
- JPH0627996Y2 JPH0627996Y2 JP1987100226U JP10022687U JPH0627996Y2 JP H0627996 Y2 JPH0627996 Y2 JP H0627996Y2 JP 1987100226 U JP1987100226 U JP 1987100226U JP 10022687 U JP10022687 U JP 10022687U JP H0627996 Y2 JPH0627996 Y2 JP H0627996Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- circuit device
- frequency circuit
- cover
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、高周波回路装置用ケースに係り、特にカバー
と対向する遮蔽板とを電気的に接続する様にした高周波
回路装置用ケースに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a high-frequency circuit device case, and more particularly to a high-frequency circuit device case in which a cover and an opposing shield plate are electrically connected.
〈従来の技術〉 第３図は従来の高周波回路装置用ケースの分解斜視図を
示す。高周波回路装置用ケース１はケース枠２と上カバ
ー３から構成され（下カバーは図示せず）、ケース枠２
は遮蔽板４にて二つの区画室５ａ、５ｂに支切られ、区
画室５ｂの上面である遮蔽板４とケース枠２の間には橋
部２ａが形成されている。<Prior Art> FIG. 3 shows an exploded perspective view of a conventional case for a high-frequency circuit device. The high frequency circuit device case 1 includes a case frame 2 and an upper cover 3 (the lower cover is not shown).
Is divided into two compartments 5a and 5b by a shield plate 4, and a bridge portion 2a is formed between the shield plate 4 and the case frame 2 which is the upper surface of the compartment 5b.
この高周波回路装置用ケースはＶＴＲとテレビ受像機
（ＴＶ）との間に接続されるＲＦモジュレータと呼ばれ
るもののケースで、このＲＦモジュレータは、ＴＶ放送
信号を受信するアンテナ、ＶＴＲ及びＴＶ受像機に接続
される。例えば、ＴＶ放送信号をＴＶ受像機で受像する
場合はＲＦモジュレータを介してＴＶ受像機へ放送信号
が供給され、他方ＶＴＲの再生信号をＴＶ受像機で再生
する場合は、ＲＦモジュレータでＴＶ放送信号に変換さ
れ、ＴＶ受像機へ供給される。このＲＦモジュレータの
回路はＶＴＲ再生信号をＴＶ放送信号に変換するモジュ
レータ回路部と、アンテナからの受信信号を増幅するブ
ースタ回路部と切換スイッチとを有しており、モジュレ
ータ回路は区画室５ａ内の回路基板上に組付られ（図示
せず）、又ブースタ回路及び切換スイッチは区画室５ｂ
内の基板上に組付られる。（図示せず）。This case for a high-frequency circuit device is a case of what is called an RF modulator connected between a VTR and a television receiver (TV), and this RF modulator is connected to an antenna for receiving a TV broadcast signal, a VTR and a TV receiver. To be done. For example, when the TV broadcast signal is received by the TV receiver, the broadcast signal is supplied to the TV receiver via the RF modulator, while when the VTR playback signal is played back by the TV receiver, the TV broadcast signal is sent by the RF modulator. And is supplied to the TV receiver. The circuit of this RF modulator has a modulator circuit section for converting a VTR reproduction signal into a TV broadcast signal, a booster circuit section for amplifying a received signal from an antenna, and a changeover switch, and the modulator circuit is in the compartment 5a. It is mounted on a circuit board (not shown), and the booster circuit and changeover switch are compartments 5b.
Mounted on the substrate inside. (Not shown).
第４図は第３図のＡ−Ａ′線に添う断面図を示す。遮蔽
板４の上端面６（断面の上端）は橋部２ａ等の他の上端
面及びケース枠２の上端面と同一高さに形成されてい
る。従って、カバー３の内面と遮蔽板４の上端面とは平
行に対面している。FIG. 4 is a sectional view taken along the line AA ′ in FIG. The upper end surface 6 (upper end of the cross section) of the shielding plate 4 is formed at the same height as the other upper end surface of the bridge portion 2a and the like and the upper end surface of the case frame 2. Therefore, the inner surface of the cover 3 and the upper end surface of the shielding plate 4 face each other in parallel.
〈考案が解決しようとする問題点〉 上記従来例では、遮蔽板の上端面と、カバー３の内面と
は平行に対面している為、橋部２ａに寸法誤差やバリ等
が生じた場合には、それらカバー３と遮蔽板４との間の
電気的な接続は完全ではなく不安定である。この様に遮
蔽板上端面とカバー３との電気的導通が確実に行われな
いと、遮蔽板４及びカバー３が同電位（同時にアースに
対しても同電位という事）とならないという問題があ
る。<Problems to be Solved by the Invention> In the above-described conventional example, since the upper end surface of the shield plate and the inner surface of the cover 3 face each other in parallel, when a dimensional error or a burr occurs in the bridge portion 2a. However, the electrical connection between the cover 3 and the shielding plate 4 is not perfect and unstable. As described above, unless electrical conduction between the upper end surface of the shield plate and the cover 3 is reliably performed, there is a problem that the shield plate 4 and the cover 3 do not have the same potential (at the same time, the same potential with respect to the ground). .
本考案は係る問題点を解決した高周波回路装置用ケース
を提供する事を目的とする。An object of the present invention is to provide a case for a high frequency circuit device which solves the above problems.
〈問題点を解決するための手段〉 本考案になる高周波回路装置用ケースは、ケース枠内を
遮蔽板にて複数の区画室に仕切られ、更にケース枠と遮
蔽板との間に橋部が設けられて、該ケース枠の該橋部が
設けられた上端面側をカバーにて覆う高周波回路装置に
おいて、該カバーと対向する該遮蔽板の上端面の一部に
他の上端面位置よりも高く、該カバーを押し上げ接触す
る折曲部を延在形成した構成を有する。<Means for Solving Problems> In the case for a high-frequency circuit device according to the present invention, the inside of the case frame is divided into a plurality of compartments by a shield plate, and a bridge portion is provided between the case frame and the shield plate. In a high-frequency circuit device that is provided and covers the upper end surface side where the bridge portion of the case frame is provided with a cover, a part of the upper end surface of the shielding plate that faces the cover is provided at a position higher than other upper end surface positions. It has a structure in which a bent portion that is high and that pushes up and contacts the cover is extendedly formed.
〈作用〉 上記構成の如く、遮蔽板の上端面の一部に、他の上端面
より高く、カバーを押し上げ接触する折曲部を形成した
為、カバーと遮蔽板との電気的な接続を直接確実に行う
事ができる。<Operation> As in the above configuration, since a bent portion that pushes up and contacts the cover is formed in a part of the upper end surface of the shield plate, which is higher than other upper end surfaces, the cover and the shield plate are electrically connected directly. It can be done reliably.
〈実施例〉 第１図は本考案の一実施例になる高周波回路装置用ケー
スの分解斜視図を示す。尚、第３図と同一部分には同一
符号を付しその説明は省略する。<Embodiment> FIG. 1 is an exploded perspective view of a high-frequency circuit device case according to an embodiment of the present invention. The same parts as those in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted.
高周波回路装置用ケース１１において第３図との相違点
は、遮蔽板７の中央部の上端面に折曲部８が遮蔽板７に
一体的に延在形成されている点である。The high-frequency circuit device case 11 differs from that shown in FIG. 3 in that a bent portion 8 is integrally formed on the upper end surface of the shield plate 7 so as to extend integrally with the shield plate 7.
第２図は第１図のＢ−Ｂ′線断面を示す。これらの図か
ら明らかな様に折曲部８の上面は橋部２ａ等の他の上端
面やケース枠２の上端面の位置より高く形成されてい
る。FIG. 2 shows a cross section taken along the line BB ′ of FIG. As is clear from these figures, the upper surface of the bent portion 8 is formed higher than the positions of other upper end surfaces of the bridge portion 2a and the like and the upper end surface of the case frame 2.
従ってケース枠２に被せられたカバー３は、カバー３の
一面全てが弾性部材となるためカバー３は折曲部８に確
実に接触しており、両者は確実に電気的な接続が行わ
れ、同時にアース電位に保持する事ができる。そして、
例えば高周波回路装置用ケース１１をＶＴＲに使用した
場合にはＶＴＲの再生信号のアンテナ側への漏洩を防止
する事ができた。Therefore, since the cover 3 covered by the case frame 2 has an elastic member on one surface of the cover 3, the cover 3 is surely in contact with the bent portion 8, and both are surely electrically connected. At the same time, it can be held at earth potential. And
For example, when the high frequency circuit device case 11 is used for a VTR, it is possible to prevent the reproduction signal of the VTR from leaking to the antenna side.
〈考案の効果〉 上述した本考案になる高周波回路装置用ケースによれ
ば、カバーと遮蔽板と機械的に直接確実に接触させる事
ができ、これにより、両者の電気的接続も確実に行う事
ができる。<Effects of the Invention> According to the high-frequency circuit device case according to the present invention described above, the cover and the shielding plate can be mechanically and directly contacted with each other reliably, and the electrical connection between them can be surely performed. You can
第１図は本考案の一実施例になる高周波回路装置用ケー
スの分解斜視図、第２図は第１図のＢ−Ｂ′線に添う斜
視図、第３図は従来の高周波回路装置用ケースの分解斜
視図、第４図は第３図のＡ−Ａ′線に添う断面図を夫々
示す。 ２……ケース枠、２ａ……橋部、３……カバー、４，７
……遮蔽板、８……折曲部。FIG. 1 is an exploded perspective view of a case for a high frequency circuit device according to an embodiment of the present invention, FIG. 2 is a perspective view taken along the line BB 'of FIG. 1, and FIG. 3 is a conventional high frequency circuit device. FIG. 4 is an exploded perspective view of the case, and FIG. 4 is a sectional view taken along the line AA ′ in FIG. 2 ... Case frame, 2a ... Bridge part, 3 ... Cover, 4, 7
...... Shield plate, 8 ...... Bent part.
Claims (1)
切られ、更にケース枠と遮蔽板との間に橋部が設けられ
て、該ケース枠の該橋部が設けられた上端面側をカバー
にて覆う高周波回路装置において、該カバーと対向する
該遮蔽板の上端面の一部に他の上端面位置よりも高く、
該カバーを押し上げ接触する折曲部を延在形成したこと
を特徴とする高周波回路装置用ケース。1. A case frame is divided into a plurality of compartments by a shielding plate, and a bridge portion is provided between the case frame and the shielding plate, and the bridge portion of the case frame is provided. In a high-frequency circuit device that covers the end face side with a cover, a part of the upper end face of the shielding plate facing the cover is higher than other upper end face positions,
A case for a high-frequency circuit device, characterized in that a bent portion that pushes up and contacts the cover is extendedly formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987100226U JPH0627996Y2 (en) | 1987-06-30 | 1987-06-30 | Case for high frequency circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987100226U JPH0627996Y2 (en) | 1987-06-30 | 1987-06-30 | Case for high frequency circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS646090U JPS646090U (en) | 1989-01-13 |
| JPH0627996Y2 true JPH0627996Y2 (en) | 1994-07-27 |
Family
ID=31328115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987100226U Expired - Lifetime JPH0627996Y2 (en) | 1987-06-30 | 1987-06-30 | Case for high frequency circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627996Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4387817B2 (en) * | 2004-01-30 | 2009-12-24 | 株式会社東芝 | Shield case and high-frequency device including the shield case |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5651389U (en) * | 1979-09-27 | 1981-05-07 | ||
| JPS60106379U (en) * | 1983-12-26 | 1985-07-19 | アルプス電気株式会社 | case for electronic equipment |
-
1987
- 1987-06-30 JP JP1987100226U patent/JPH0627996Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS646090U (en) | 1989-01-13 |
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