JPS6236360Y2 - - Google Patents
Info
- Publication number
- JPS6236360Y2 JPS6236360Y2 JP1981182369U JP18236981U JPS6236360Y2 JP S6236360 Y2 JPS6236360 Y2 JP S6236360Y2 JP 1981182369 U JP1981182369 U JP 1981182369U JP 18236981 U JP18236981 U JP 18236981U JP S6236360 Y2 JPS6236360 Y2 JP S6236360Y2
- Authority
- JP
- Japan
- Prior art keywords
- printed circuit
- circuit board
- coupling element
- shield case
- copper film
- 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
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Structure Of Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
【考案の詳細な説明】
本考案は、テレビ受像機のアンテナ入力部のシ
ールド装置に係り、特に西ドイツにおける新
FTZ規格に適合した同シールド装置に関する。[Detailed description of the invention] The present invention relates to a shielding device for the antenna input section of a television receiver, and is particularly a new technology developed in West Germany.
Regarding the shield device that complies with the FTZ standard.
従来トランスレスのテレビ受像機においては、
トランスレスの非絶縁シヤーシのセツトでは、外
部に露出するアンテナ端子はコンデンサでカツト
して絶縁耐圧を持たす必要があつたり、この場合
従来の様に単にコンデンサ１個で、遮断する方式
では、どうしてもシールドが不完全となる。 In conventional transformerless television receivers,
In a transformerless non-insulated chassis set, the antenna terminal exposed to the outside must be cut with a capacitor to provide dielectric strength. becomes incomplete.
そこで本考案は、前記欠点を除去した新規なア
ンテナ入力部のシールド装置を提供するもので、
以下図面に従つて説明すると、第１図は本考案装
置の斜視図、第２図は同装置に用いる第１プリン
ト基板の銅膜側のパターン図、第３図は同装置の
要部断面図を示す。 Therefore, the present invention provides a novel antenna input shielding device that eliminates the above-mentioned drawbacks.
The explanation will be given below according to the drawings. Fig. 1 is a perspective view of the device of the present invention, Fig. 2 is a pattern diagram of the copper film side of the first printed circuit board used in the device, and Fig. 3 is a sectional view of the main part of the device. shows.
図面において、１は第１のプリント基板、２は
第１の結合素子、３はシールドケース、４は第２
のプリント基板、５，６は前記第１及び第２のプ
リント基板に設けられた銅膜、７は第２の結合素
子、８はシールドケースへの結合用のコンデン
サ、９は前記第１の結合素子と第２の結合素子の
各中央端子１０，１１を交流的に結合するための
結合（カツプリング）コンデンサ、１２は前記シ
ールドケースに設けた固定用の取付脚、１３は前
記取付脚が挿入される脚孔、１４は前記第１の結
合素子２の外周端子が挿入される端子孔、１５は
前記シールドケースへの結合用として設けたコン
デンサ８のリード線用孔、１６は半田を示す。 In the drawings, 1 is a first printed circuit board, 2 is a first coupling element, 3 is a shield case, and 4 is a second
, 5 and 6 are copper films provided on the first and second printed circuit boards, 7 is a second coupling element, 8 is a capacitor for coupling to the shield case, and 9 is the first coupling A coupling capacitor for alternating current coupling between the central terminals 10 and 11 of the element and the second coupling element, 12 a mounting leg for fixing provided on the shield case, and 13 a mounting leg into which the mounting leg is inserted. 14 is a terminal hole into which the outer peripheral terminal of the first coupling element 2 is inserted, 15 is a hole for a lead wire of the capacitor 8 provided for connection to the shield case, and 16 is a solder.
次に本考案装置の組立順序について説明する
と、先ず第２のプリント基板４に対してシールド
ケース３を半田１６にて固定すると共に電気的に
銅膜６に接続し、更に第２の結合素子７のナツト
１７にて前記第２のプリント基板４とシールドケ
ース３をサンドイツチ状になして締付け、一体化
する。前記第２の結合素子７の中央端子１１には
結合コンデンサ９の一端を半田１６にて固定して
おく。 Next, the assembly order of the device of the present invention will be explained. First, the shield case 3 is fixed to the second printed circuit board 4 with solder 16 and electrically connected to the copper film 6, and then the second coupling element 7 The second printed circuit board 4 and the shield case 3 are tightened and integrated with the nut 17 in a sandwich-like configuration. One end of a coupling capacitor 9 is fixed to the center terminal 11 of the second coupling element 7 with solder 16.
一方第１のプリント基板１には、第１の結合素
子２を取付け、該第１の結合素子２の外周端子１
８にコンデンサ８を図示の例では４個放射状に配
置してそのリード線の各一端を半田付すると共に
コンデンサ８の各他端をリード線孔１９を通して
銅膜５に半田付し、その中央端子１０に前記結合
コンデンサ９の他端を半田付する。 On the other hand, a first coupling element 2 is attached to the first printed circuit board 1 , and an outer peripheral terminal 1 of the first coupling element 2 is attached.
In the illustrated example, four capacitors 8 are arranged radially at 8, one end of each of the lead wires is soldered, and the other end of each capacitor 8 is soldered to the copper film 5 through the lead wire hole 19, and the center terminal is soldered to the copper film 5. The other end of the coupling capacitor 9 is soldered to 10.
次に第１のプリント基板１を前記シールドケー
ス３の開口側に対向させて、シールドケース３の
取付脚１２を各々脚孔１３に挿入した後、第１図
に示すように折曲げて前記開口部側を施蓋する。
第１のプリント基板１の銅膜５に対してシールド
ケース３の端縁を半田１６によつて固定すれば、
組立は完成する。 Next, with the first printed circuit board 1 facing the opening side of the shield case 3, the mounting legs 12 of the shield case 3 are inserted into the leg holes 13, and then bent as shown in FIG. Cover the side.
If the edge of the shield case 3 is fixed to the copper film 5 of the first printed circuit board 1 with solder 16,
The assembly is complete.
これにより第１の結合素子２の外周端子１８は
四方に向つて放射状に配置したコンデンサ８によ
つて第１のプリント基板１の銅膜５を介してシー
ルドケース３に交流的に接続され、更に該シール
ドケース３に対して、第２の結合素子７の外周端
子２０は第２のプリント基板４の銅膜６を介して
接続され、前記第１及び第２の結合素子２，７の
中央端子間は結合コンデンサ９によつて交流的に
接続される。 As a result, the outer peripheral terminal 18 of the first coupling element 2 is AC connected to the shield case 3 via the copper film 5 of the first printed circuit board 1 by the capacitor 8 arranged radially in all directions, and further The outer terminal 20 of the second coupling element 7 is connected to the shield case 3 via the copper film 6 of the second printed circuit board 4 , and the center terminal of the first and second coupling elements 2, 7 is connected to the shield case 3 through the copper film 6 of the second printed circuit board 4. A coupling capacitor 9 connects them in an alternating current manner.
外部アンテナから導出されたプラグ（図示せ
ず）を前記第２の結合素子７に接続し、セツト側
のチユーナに接続されたプラグ（図示せず）を前
記第１の結合素子２に接続すれば、前記アンテナ
によつて受信された信号は、前述の経路を介して
チユーナに伝わり、更に受信回路によつて映像及
び音声信号が得られ、各々ブラウン管及びスピー
カを通して映像と音声が送出される。 If a plug (not shown) led out from the external antenna is connected to the second coupling element 7, and a plug (not shown) connected to the tuner on the set side is connected to the first coupling element 2. The signal received by the antenna is transmitted to the tuner via the above-mentioned path, and the receiving circuit obtains video and audio signals, and the video and audio signals are transmitted through a cathode ray tube and a speaker, respectively.
前述の実施例では第１の結合素子として１ピン
ジヤツクを、第２の結合素子としてコネクターを
用いた例について説明したが、他の結合手段を用
いても良い。 In the above embodiment, a 1-pin jack was used as the first coupling element and a connector was used as the second coupling element, but other coupling means may be used.
更に実施例においては４個のコンデンサを第１
の結合素子の周縁端子に対して放射状に接続して
シールドを施したが、３〜６個でも良く又容量値
は数100PF、例えば470PFのコンデンサを４個使
用することによつてシールド効果を充分に得られ
た。 Furthermore, in the embodiment, four capacitors are connected to the first
Shielding was performed by connecting radially to the peripheral terminal of the coupling element, but 3 to 6 capacitors may be used, and the shielding effect can be obtained sufficiently by using 4 capacitors with a capacitance of several hundred PF, for example 470 PF. obtained.
前記コンデンサは理論的には容量値は大きい程
シールド効果に対しては有効であるが、高耐圧の
コンデンサは容量値に限度があり、大容量のもの
は製造困難であるが、本考案では容量は分割され
即ち４個使用の場合各コンデンサの容量は1/4で
事足りることになる。 Theoretically, the larger the capacitance value of the capacitor, the more effective it is against shielding effects. However, high-voltage capacitors have a limited capacitance value, and it is difficult to manufacture large-capacity capacitors. In other words, if four capacitors are used, 1/4 of the capacitance of each capacitor is sufficient.
以上の様に本考案によれば、第１及び第２の結
合素子の結合経路において、セツト内のシヤーシ
とはセツト外方に対して該シヤーシに加わつてい
る電圧を遮断すると共にシールドケース及び放射
状に配置したコンデンサ及びその取付を容易にし
且銅膜でシールド効果を有するプリント基板の使
用により前記第１の結合素子の外周端子が完全に
シールドされることになる。 As described above, according to the present invention, in the coupling path of the first and second coupling elements, the chassis in the set cuts off the voltage applied to the chassis to the outside of the set, and the shield case and the radial The outer peripheral terminal of the first coupling element is completely shielded by using a printed circuit board which facilitates the capacitor disposed in the capacitor and which has a shielding effect with a copper film.
図面はいずれも本考案のアンテナ入力部のシー
ルド装置を示し、第１図は同装置の斜視図、第２
図は同装置に用いる第１のプリント基板の銅膜面
を示す平面図、第３図は同装置の縦断面図であ
る。
主な図番の説明、１……第１のプリント基板、
２……第１の結合素子、３……シールドケース、
４……第２のプリント基板、５，６……銅膜、７
……第２の結合素子、８……シールドケースへの
結合用のコンデンサ。
The drawings all show a shielding device for the antenna input section of the present invention, and FIG. 1 is a perspective view of the device, and FIG. 2 is a perspective view of the device.
The figure is a plan view showing the copper film surface of the first printed circuit board used in the device, and FIG. 3 is a longitudinal sectional view of the device. Explanation of main drawing numbers, 1 ...First printed circuit board,
2...first coupling element, 3...shield case,
4 ... Second printed circuit board, 5, 6... Copper film, 7
...Second coupling element, 8...Capacitor for coupling to the shield case.
Claims (1)
子と、該第１の結合素子が取付けられると共に銅
膜を有する第１のプリント基板と、該第１のプリ
ント基板の銅膜に対して取付脚が取付けられるシ
ールドケースと、該シールドケースが取付けられ
る第２のプリント基板と、該第２のプリント基板
に固定されたアンテナ用の第２の結合素子と、前
記第１及び第２の結合素子の各中央端子とを電気
的に接続する結合コンデンサと、前記銅膜及び前
記第１の結合素子の外周端子との間に放射状に配
置して半田付される複数のコンデンサより成るこ
とを特徴とするアンテナ入力部のシールド装置。 a first coupling element provided for connection with the tuner; a first printed circuit board to which the first coupling element is attached and has a copper film; and a first printed circuit board that is attached to the copper film of the first printed circuit board. a shield case to which the legs are attached; a second printed circuit board to which the shield case is attached; a second coupling element for an antenna fixed to the second printed circuit board; and the first and second coupling elements. and a plurality of capacitors arranged radially and soldered between the copper film and the outer peripheral terminal of the first coupling element. A shield device for the antenna input section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18236981U JPS5885836U (en) | 1981-12-07 | 1981-12-07 | Antenna input shield device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18236981U JPS5885836U (en) | 1981-12-07 | 1981-12-07 | Antenna input shield device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5885836U JPS5885836U (en) | 1983-06-10 |
| JPS6236360Y2 true JPS6236360Y2 (en) | 1987-09-16 |
Family
ID=29980675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18236981U Granted JPS5885836U (en) | 1981-12-07 | 1981-12-07 | Antenna input shield device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5885836U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6098938U (en) * | 1983-12-09 | 1985-07-05 | ティーディーケイ株式会社 | Antenna input circuit unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5256728Y2 (en) * | 1972-09-30 | 1977-12-22 | ||
| JPS55107745U (en) * | 1979-01-19 | 1980-07-28 |
-
1981
- 1981-12-07 JP JP18236981U patent/JPS5885836U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5885836U (en) | 1983-06-10 |
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