JPS6029779Y2 - coaxial feed line - Google Patents
coaxial feed lineInfo
- Publication number
- JPS6029779Y2 JPS6029779Y2 JP1977119896U JP11989677U JPS6029779Y2 JP S6029779 Y2 JPS6029779 Y2 JP S6029779Y2 JP 1977119896 U JP1977119896 U JP 1977119896U JP 11989677 U JP11989677 U JP 11989677U JP S6029779 Y2 JPS6029779 Y2 JP S6029779Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner conductor
- outer conductor
- conductor
- coaxial
- cooling air
- 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
- Waveguides (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Description
【考案の詳細な説明】 本考案は高周波を給電する同軸形給電線に関する。[Detailed explanation of the idea] The present invention relates to a coaxial feed line for feeding high frequency power.
従来この種の同軸給電線は第１図の示すような構造とな
っている。Conventionally, this type of coaxial feeder line has a structure as shown in FIG.
外導体１はアース電流が流れ、内導体２に高電圧電流が
流れている。A ground current flows through the outer conductor 1, and a high voltage current flows through the inner conductor 2.
内導体固定板３は常に内導体２が外導体１の中心になる
様にするための絶縁物（一般にはテフロン）である。The inner conductor fixing plate 3 is an insulator (generally Teflon) for keeping the inner conductor 2 at the center of the outer conductor 1 at all times.
この様な同軸給電線において一般に外導体１と内導体２
に同量の電流が流れ、内導体２の外径の方が外導体１の
内径より小さいため電流密度は内導体の方が大きくなる
、従って電流が流れる事により発生する熱は内導体の方
が大きくなる。In such a coaxial feeder line, generally the outer conductor 1 and the inner conductor 2 are
The same amount of current flows through the inner conductor 2 and the outer diameter of the inner conductor 2 is smaller than the inner diameter of the outer conductor 1, so the current density is greater in the inner conductor. Therefore, the heat generated by the current flow is greater in the inner conductor. becomes larger.
しかるに内導体より発生した熱は外導体との空気層及び
外導体金属層を通過して外部へ放散するため熱抵抗が大
きく内導体の温度上昇が大きくなる。However, the heat generated by the inner conductor passes through the air space with the outer conductor and the outer conductor metal layer and is dissipated to the outside, resulting in a large thermal resistance and a large temperature rise in the inner conductor.
従ってこの現象をさけるため、同軸給電線はサイズの大
きなもの使用しなくてはならないので、該給電線のコス
トが高いものになるという欠点があつた。Therefore, in order to avoid this phenomenon, it is necessary to use a large coaxial feeder line, which has the drawback of increasing the cost of the feeder line.
本考案は内導体と外導体の空気層に冷却空気を流入させ
内部を強制空冷する事により給電線のサイズが小さくて
も内導体が温度上昇しない様にし、コストの安価な同軸
給電線を提供することにある。This invention allows cooling air to flow into the air layer between the inner conductor and outer conductor to forcefully cool the inside, thereby preventing the temperature of the inner conductor from rising even if the size of the power feeder is small, thereby providing an inexpensive coaxial power feeder. It's about doing.
本考案は、一部に冷却空気送風口を設け、内導体固定板
の通気孔を設は他の−か所又は複数個所に空気吐出口を
設け、同軸給電線内部を強制空冷できることを特徴とす
る同軸給電線である。The present invention is characterized by providing a cooling air outlet in one part, providing a ventilation hole in the inner conductor fixing plate, and providing an air outlet in another location or multiple locations, thereby making it possible to forcefully cool the inside of the coaxial feeder. This is a coaxial feed line.
次に本考案の一実施例の図面を参照して本考案を詳細に
説明する。Next, the present invention will be described in detail with reference to the drawings of an embodiment of the present invention.
第２図はテレビ送信装置の概略系統図である。FIG. 2 is a schematic system diagram of the television transmitting device.
送信機１１より給電された高周波は同軸給電線１２を通
りアンテナ１３へと給電され電波を発射する。The high frequency power supplied from the transmitter 11 passes through the coaxial feed line 12 and is supplied to the antenna 13, which emits radio waves.
同軸給電線１２には内部強制空冷を行うための送風機１
５とダクト１４が接続されている。A blower 1 for internal forced air cooling is attached to the coaxial feeder line 12.
5 and the duct 14 are connected.
同軸給電線１２を電波が通過する時に発生する熱は、送
風機１５よりエアーダクト１４を通じて送り込まれた空
気により冷却される。Heat generated when radio waves pass through the coaxial feeder line 12 is cooled by air sent from the blower 15 through the air duct 14.
第３図は同軸給電線１２の内部詳細図である。FIG. 3 is a detailed internal view of the coaxial feeder line 12.
エアーダクト１４を通じて送られた空気はダクト固定具
１５を通り、同軸給電線外導体１の送風口１８より外導
体１と内導体２の空気層へ送り込まれる。The air sent through the air duct 14 passes through the duct fixture 15 and is sent into the air layer between the outer conductor 1 and the inner conductor 2 through the air outlet 18 of the outer conductor 1 of the coaxial feeder line.
冷却空気は内導体固定板３の通気孔２０を通り内導体２
にて発生した熱を奪って外導体１の吐出口１９より外部
へ排気される。Cooling air passes through the ventilation hole 20 of the inner conductor fixing plate 3 and reaches the inner conductor 2.
The heat generated is removed and exhausted to the outside through the discharge port 19 of the outer conductor 1.
尚シールド網１７は送風口１８及び吐出口１９より高周
波が洩れるのを防止するために設けである。The shielding net 17 is provided to prevent high frequency waves from leaking from the air outlet 18 and the discharge outlet 19.
又バンド１５はダクト固定具１５及びシールド網１７を
固定するために設けである。Further, the band 15 is provided to fix the duct fixture 15 and the shield net 17.
本考案は以上説明したように同軸給電線に、冷却空気送
風口、吐出に、及び内導体固定板に通気孔を設けること
によって、同軸給電線のサイズが小さくても内導体の温
度上昇を低くする効果がある。As explained above, this invention reduces the temperature rise of the inner conductor even if the size of the coaxial feeder is small by providing ventilation holes in the coaxial feeder, the cooling air outlet, the discharge, and the inner conductor fixing plate. It has the effect of
第１図は従来の同軸給電線の断面図、第２図は本考案の
一実施例であるテレビ送信装置の概略系統図、第３図は
第２図に示した本考案の一実施例の同軸給電線の詳細断
面図である。
図において、１・・・・・・外導体、２・・・・・・内
導体、３・・・・・・内導体、１１・・・・・・テレビ
送信機、１２・曲・同軸給電線、１３・・・・・・アン
テナ、１４・・・・・・エアーダクト、１５・・・・・
・送風機、１６・・・・・・バンド、１７・・・・・・
シールド網、１８・・・・・・送風口、１９・・・・・
・吐出口、２０・・・・・・内導体固定板通気孔。Fig. 1 is a sectional view of a conventional coaxial feeder line, Fig. 2 is a schematic system diagram of a television transmitter that is an embodiment of the present invention, and Fig. 3 is a diagram of an embodiment of the present invention shown in Fig. 2. It is a detailed sectional view of a coaxial feeder line. In the figure, 1...Outer conductor, 2...Inner conductor, 3...Inner conductor, 11...TV transmitter, 12. Tuning/coaxial feed Electric wire, 13... Antenna, 14... Air duct, 15...
・Blower, 16...Band, 17...
Shield net, 18...Bent air outlet, 19...
・Discharge port, 20... Inner conductor fixing plate ventilation hole.
Claims (1)
導体と内導体との間に設けられ冷却空気の通過を可能と
する通気孔を有し内導体固定板と、前記外導体の表面に
設けられた冷却空気送風口と、前記外導体の表面に設け
られた冷却空気吐出口とを具備することを特徴とする同
軸給電線。In a coaxial feeder line consisting of an outer conductor and an inner conductor, an inner conductor fixing plate having a ventilation hole provided between the outer conductor and the inner conductor to allow cooling air to pass through, and an inner conductor fixing plate provided on the surface of the outer conductor. A coaxial power supply line comprising a cooling air outlet provided on the surface of the outer conductor and a cooling air outlet provided on the surface of the outer conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977119896U JPS6029779Y2 (en) | 1977-09-05 | 1977-09-05 | coaxial feed line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977119896U JPS6029779Y2 (en) | 1977-09-05 | 1977-09-05 | coaxial feed line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5445385U JPS5445385U (en) | 1979-03-29 |
| JPS6029779Y2 true JPS6029779Y2 (en) | 1985-09-07 |
Family
ID=29075587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977119896U Expired JPS6029779Y2 (en) | 1977-09-05 | 1977-09-05 | coaxial feed line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029779Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943256A (en) * | 2014-03-27 | 2014-07-23 | 西安富士达线缆有限公司 | Constant-temperature cable with controllable temperature |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156583A (en) * | 1983-02-25 | 1984-09-05 | Seiwa Seisakusho:Kk | Welding head with balance mechanism |
| JPS59156582A (en) * | 1983-02-25 | 1984-09-05 | Seiwa Seisakusho:Kk | Welding head with balance mechanism |
| JPS60250883A (en) * | 1984-05-29 | 1985-12-11 | Takao Kinzoku Kogyo Kk | welding equipment |
| JPS614890U (en) * | 1984-06-07 | 1986-01-13 | 株式会社 渡辺製作所 | Flexible electrode for two-point spot |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1640767B1 (en) * | 1968-02-20 | 1971-03-11 | Kabel Metallwerke Ghh | CAVITY INSULATED COAXIAL HIGH FREQUENCY CABLE |
-
1977
- 1977-09-05 JP JP1977119896U patent/JPS6029779Y2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943256A (en) * | 2014-03-27 | 2014-07-23 | 西安富士达线缆有限公司 | Constant-temperature cable with controllable temperature |
| CN103943256B (en) * | 2014-03-27 | 2016-07-06 | 西安富士达线缆有限公司 | A kind of constant temperature cable with temperature-controllable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5445385U (en) | 1979-03-29 |
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