JP4256089B2

JP4256089B2 - Electronic device, chassis device and casing thereof, and broadcasting transmission device, chassis device and casing thereof

Info

Publication number: JP4256089B2
Application number: JP2001304752A
Authority: JP
Inventors: 浩一郎花房
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2001-09-28
Filing date: 2001-09-28
Publication date: 2009-04-22
Anticipated expiration: 2021-09-28
Also published as: JP2003110273A

Description

【０００１】
【発明の属する技術分野】
この発明は、例えば地上デジタル放送等の放送信号を送信する送信局に用いられる電子部品や電力増幅器に対し、効率良く放熱を行ないかつ効率良くメンテナンスを行うための電子装置及び放送用送信装置に関する。
【０００２】
【従来の技術】
従来より、アナログ放送局にあっては、番組情報信号を送信すべきアナログ放送波に電力増幅するアナログ放送用の送信装置が使用されている。
【０００３】
近年、デジタル放送が開始されており、その普及までにアナログ放送との共存が考えられている。この場合、１つの放送局内に、アナログ放送用の送信装置とデジタル放送用の送信装置とが併用されることになるため、両送信装置の小型化及び小スペース化が強く望まれている。
【０００４】
しかし、上記各送信装置は、その内部に複数の電力増幅器を並列に設けた構成であるため、小型化及び小スペース化を図ると、複数の電力増幅器間が狭まることになり、各電力増幅器に対する放熱が悪くなる。
【０００５】
そこで、従来の熱対策としては、電力増幅器に対し内部に液体を循環させるコールドプレートを設けた液冷方式を採用することが考えられる。
【０００６】
この液冷方式は、吸熱媒体として比熱の大きい液体を使用することにより、少ない体積で熱を運ぶ事が可能であり、それに伴い発熱部品と冷却媒体との接触面積を小さくすることが可能である。このことによって、送信装置自体の外形寸法を小型にできる。
【０００７】
ところで、上記デジタル放送用の送信装置では、万一運用中にある電力増幅器に障害が発生した場合でも、運用を停止することなく、障害が発生した電力増幅器のみ交換する必要がある。このため、電力増幅器としては簡単に送信装置本体からの着脱が可能な構造が求められている。
【０００８】
【発明が解決しようとする課題】
しかし、上記構成によるコールドプレート付き電力増幅モジュールでは、送信装置本体から着脱する際に、電力増幅器の電源受け部と送信装置側の電源供給部との位置ずれや、コールドプレートの液体受け部と送信装置側の液体供給部との位置ずれにより、電源供給や液体供給が確実に行われない場合や、液体漏れ等を発生させたり、また接続端子の破損等を起こしたりする恐れがある。このため、保守者は、電力増幅モジュールの装着を行う際に、送信装置本体の前面から電力増幅モジュールを挿入し、続いて送信装置本体の背後に回って接続端子同士の接続を行っていた。また、電力増幅モジュールの取り出しを行う際に、送信装置本体の背後から接続端子の取り外しを行い、続いて送信装置本体の前面から電力増幅モジュールを取り出していた。
【０００９】
よって、電力増幅モジュールの着脱に多くの時間がかかるとともに、多数の電力増幅モジュールに対する単純な繰り返し作業であるため、保守者の負担が大きかった。
【００１０】
そこで、この発明の目的は、簡単な構成で、例えば電力増幅器や冷却部材を筐体内に短時間で正確に装着または筐体内からの取り出しができるようにし、これによりメンテナンスの能率向上及び接続に関する信頼性の向上を図るとともに、保守者の負担を大幅に軽減し得る電子装置とそのシャーシ装置並びに筐体、及び放送用送信装置とそのシャーシ装置並びに筐体を提供することにある。
【００１１】
【課題を解決するための手段】
この発明は、上記目的を達成するために、以下のように構成される。
（１）電子部品及び内部に冷却液体の循環経路を形成した放熱板を内蔵し、表面の一部に電子部品に電源を供給する第１の電源用接続端子を設け、かつこの第１の電源用接続端子と同一面に、放熱板に冷却液体を循環させる第１の冷却用接続端子を設け、各々独立に電源をオン・オフさせるスイッチを前面に設けた複数のシャーシ装置と、少なくとも前面に開口を有し、複数のシャーシ装置の少なくとも第１の電源用接続端子及び第１の冷却用接続端子を設けた面を開口を介して複数のシャーシ装置を垂直方向に積層収容する筐体と、この筐体内のシャーシ装置固定位置に設けられ、シャーシ装置収容時に、シャーシ装置の第１の電源用接続端子及び第１の冷却用接続端子に接続される第２の電源用接続端子及び第２の冷却用接続端子と、複数のシャーシ装置をその一部が筐体の開口から突出した第１の状態から第１の電源用接続端子及び第１の冷却用接続端子が第２の電源用接続端子及び第２の冷却用接続端子に接続される第２の状態に案内する挿入案内部とを具備し、第１の電源用接続端子及び第２の電源用接続端子のうちいずれか１つを浮動構造とし、第１の冷却用接続端子及び第２の冷却用接続端子のうちいずれか１つを浮動構造とするとともに、第１の電源用接続端子、第１の冷却用接続端子、第２の電源用接続端子、及び第２の冷却用接続端子は、第２の電源用接続端子及び第２の冷却用接続端子が各々第１の電源用接続端子及び第１の冷却用接続端子に押し込まれると接続が固定され、第２の電源用接続端子及び第２の冷却用接続端子を抜き出すと接続が解除されるようにしたものである。
【００１２】
（１）の発明によれば、電子部品及び放熱板がシャーシ装置に内蔵されるとともに、電子部品に対し電源を供給するための第１の電源用接続端子及び放熱板に対し冷却媒体を循環させるための第１の冷却用接続端子を同一表面に露出させ、筐体に対しシャーシ装置の第１の電源用接続端子及び第１の冷却用接続端子を設けた面を収容するだけで、第１の電源用接続端子及び第１の冷却用接続端子がそれぞれ接続される第２の電源用接続端子及び第２の冷却用接続端子の位置へ挿入案内部により案内されることになる。そして、接続端子同士が接続される際に、いずれか一方が浮動構造を成すことで、破損を起こすことなく確実に接続されることになる。
【００１３】
従って、電子部品及び放熱板を内蔵したシャーシ装置を筐体内に短時間で正確に装着または筐体内からの取り出しができるようになり、これによりメンテナンスの能率向上及び接続に関する信頼性の向上を図るとともに、保守者の負担を大幅に軽減できる。また、万一、冷却用接続端子から冷却液が漏れてしまった場合にも、隣接する電子部品がシャーシ装置に内蔵される構成であるため、漏れた冷却液はシャーシ装置の表面にかかることになり、これにより漏れた冷却液が電子部品にかかることを防止できる。さらに、筐体のサイズを決める場合に、複数のシャーシ装置を筐体に収容した状態に基づいて、最小のサイズに設計することができる。
【００１４】
（２）デジタル放送信号を送信する送信局に用いられる放送用送信装置であって、放送すべき番組情報信号をデジタル放送信号に電力増幅する電力増幅器及び内部に冷却液体の循環経路を形成した放熱板を内蔵し、表面の一部に電力増幅器に電源を供給する第１の電源用接続端子、該電力増幅器に対し番組情報信号の入力、デジタル放送信号の出力を行う第１の信号入力端子、第１の信号出力端子を設け、かつこの第１の電源用接続端子、第１の信号入力端子及び第１の信号出力端子と同一面に、放熱板に冷却液体を循環させる第１の冷却用接続端子を設け、各々独立に電源をオン・オフさせるスイッチを前面に設けた複数のシャーシ装置と、少なくとも前面に開口を有し、複数のシャーシ装置の少なくとも第１の電源用接続端子、第１の信号入力端子、第１の信号出力端子及び第１の冷却用接続端子を設けた面を前記開口を介して複数のシャーシ装置を垂直方向に積層収容する筐体と、この筐体内のシャーシ装置固定位置に設けられ、シャーシ装置収容時に、シャーシ装置の第１の電源用接続端子、第１の信号入力端子、第１の信号出力端子及び第１の冷却用接続端子に接続される第２の電源用接続端子、第２の信号入力端子、第２の信号出力端子及び第２の冷却用接続端子と、複数のシャーシ装置をその一部が筐体の開口から突出した第１の状態から第１の電源用接続端子、第１の信号入力端子、第１の信号出力端子及び第１の冷却用接続端子が第２の電源用接続端子、第２の信号入力端子、第２の信号出力端子及び第２の冷却用接続端子に接続される第２の状態に案内する挿入案内部とを具備し、第１の電源用接続端子及び第２の電源用接続端子のうちいずれか１つを浮動構造とし、第１の信号入力端子及び第２の信号入力端子のうちいずれか１つを浮動構造とし、第１の信号出力端子及び第２の信号出力端子のうちいずれか１つを浮動構造とし、第１の冷却用接続端子及び第２の冷却用接続端子のうちいずれか１つを浮動構造とするとともに、第１の電源用接続端子、第１の信号入力端子、第１の冷却用接続端子、第２の電源用接続端子、第２の信号出力端子及び第２の冷却用接続端子は、第２の電源用接続端子、第２の信号出力端子及び第２の冷却用接続端子が各々第１の電源用接続端子、第１の信号入力端子及び第１の冷却用接続端子に押し込まれると接続が固定され、第２の電源用接続端子、第２の信号出力端子及び第２の冷却用接続端子を抜き出すと接続が解除されるようにしたものである。
【００１５】
（２）の発明においても、上記（１）の発明と同様の効果が得られる。
【００１６】
（３）上記（１）、（２）において浮動構造を成す電源用接続端子及び冷却用接続端子は、接続相手となる接続端子に完全に接続された状態で相手端子をロックし、抜き出しの際にロックを解除する構造を有することを特徴とする。
【００１７】
（３）によれば、接続に関する信頼性の向上を高めることができる。
【００１８】
【発明の実施の形態】
以下、この発明の実施形態について図面を参照して詳細に説明する。
【００１９】
図１は、この発明の放送用送信装置を電力増幅装置に適用したデジタル放送局内のシステムの要部構成を示すブロック図である。
【００２０】
このデジタル放送局は、同図に示すように、電力増幅装置１００と、アップコンバータ２００と、合成器３００と、帯域フィルタ（ＢＰＦ）４００と、アンテナ５００とを備えている。
【００２１】
デジタル放送局において、放送すべき番組情報信号は、アップコンバータ２００により無線周波数（ＲＦ）帯に周波数変換されて電力増幅モジュール１００内のｎ個の電力増幅モジュール１０１〜１０ｎにそれぞれ供給される。ｎ個の電力増幅器１０１〜１０ｎは、放送サービスエリアで要求される個数分備えられ、互いに並列に接続され、かつ互いに独立して電源のオン／オフ切替が可能であり、ＲＦ信号を同一利得で電力増幅した後、合成器３００に出力する。
【００２２】
電力増幅モジュール１０１〜１０ｎの各出力は、合成器３００で合成され、ＢＰＦ４００で不要波成分を除去された後、デジタル放送波としてアンテナ５００を介して送信される。
【００２３】
この発明の一実施形態は、図１における電力増幅装置１００に関するものである。
【００２４】
図２は、上記電力増幅装置１００の概略的構成を示す斜視図である。
【００２５】
図中符号１１０は略箱状の筐体で、その開口部に電力増幅器１０１〜１０ｎを内蔵したシャーシ装置１２１〜１２ｎ（図２中ではシャーシ装置１２１〜１２９のみ図示）がそれぞれ前後方向に着脱自在となるように収容されている。この筐体１１０の背面側には、電力増幅器１０１〜１０４に対し電源及びアップコンバータ２００からのＲＦ信号を供給するための信号入力端子と、電力増幅器１０１〜１０４で電力増幅した信号を出力するための信号出力端子とが設けられている。
【００２６】
また、筐体１１０内部には、左右側面にそれぞれ後述する複数のガイドレールが所定の配列で設けられている。
【００２７】
まず、ｎ個のシャーシ装置１２１〜１２ｎについて、シャーシ装置１２１を代表して説明する。
図３（ａ）はシャーシ装置１２１を前面から見た斜視図であり、図３（ｂ）はシャーシ装置１２１を上面から見た図である。
【００２８】
シャーシ装置１２１は、その左右側面にガイド溝１２１１，１２１２（図３中ではガイド溝１２１１のみ図示）を筐体１１０への挿入方向（図３中では矢印Ａ方向）に沿って形成しており、背面に電源供給用の接続端子１２１３、信号入力用の接続端子１２１４、信号出力用の接続端子１２１５、冷却液供給用の接続端子１２１６及び冷却液排出用の接続端子１２１７を設けている。
【００２９】
次に、シャーシ装置１２１内部について説明する。
すなわち、シャーシ装置１２１には、図４に示すように、電力増幅器１０１及びコールドプレート１５１が内蔵される。コールドプレート１５１には、その内部に冷却液を循環させるための液体循環経路１６１（図４中では鎖線で示す）がほぼ全面に渡り形成されている。この液体循環経路１６１には、筐体１１０側から供給される冷却液が循環されることになる。そして、コールドプレート１５１の上面には、電力増幅器１０１が載置されることになる。
【００３０】
次に、筐体１１０とシャーシ装置１２１との間の接続機構について説明する。
シャーシ装置１２１は、その接続端子１２１３〜１２１７を設けた面から筐体１１０の開口部に図５中矢印Ａ方向に挿入されると、まずその左右のガイド溝１２１１，１２１２がガイドレール１３１，１４１に係合する。そして、シャーシ装置１２１が開口部内に深く挿入されていくにつれて、ガイドレール１３１，１４１により、シャーシ装置１２１の接続端子１２１３〜１２１７が筐体１１０内に設けられた接続端子１１１３〜１１１７に近接する位置に案内される。
【００３１】
ここで、接続端子１１１３〜１１１７は、上下左右に揺れ動く浮動構造を成す。シャーシ装置１２１がさらに深く押し込まれると、接続端子１２１５が図６（ａ）の状態から図６（ｂ）の状態へ案内されて、その頭部が接続端子１１１５の凹部に接触される。このとき、接続端子１１１５は、浮動構造により揺れ動きながら接続端子１２１５の頭部を内部に案内し、しかる後に図６（ｃ）に示すごとく完全に接続端子１２１５と接続される。なお、接続端子１１１３と接続端子１２１３、接続端子１１１４と接続端子１２１４、接続端子１１１６と接続端子１２１６、接続端子１１１７と接続端子１２１７の接続手法についても、接続端子１１１５と接続端子１２１５の接続と同様に行なわれる。
【００３２】
また、接続端子１１１３〜１１１７は、完全接続時に、接続端子１２１３〜１２１７をロックして外れないようにし、シャーシ装置１２１を取り外す際に、ロックを解除する機能を有する。
【００３３】
次に、以上のように構成された電力増幅装置１００の動作につき説明する。例えばシャーシ装置１２１が筐体１１０に収容された状態で、電力増幅装置１００が作動すると、接続端子１１１３，１２１３を介して電力増幅器１０１に電源が供給される。そして、電力増幅器１０１が発熱すると、この熱はコールドプレート１５１に伝達されることになる。
【００３４】
一方、電力増幅装置１００外に設置される図示しないラジエータから発生される冷却液は、接続端子１１１６，１２１６を介してコールドプレート１５１に供給される。この際、冷却液は、コールドプレート１５１の液体循環経路１６１に導かれ、電力増幅装置１００が作動されることにより電力増幅器１０１から発生する熱を奪って、接続端子１１１７，１２１７から排出される。従って、電力増幅器１０１から発生する熱が冷却液によって筐体１１０外に導かれ、以後、ラジエータによって熱交換され、再度コールドプレート１５１の液体循環経路１６１に戻される。
【００３５】
以上述べたように上記実施形態では、電力増幅器１０１及びコールドプレート１５１がシャーシ装置１２１に内蔵されるとともに、電力増幅器１０１に対し電源を供給するための接続端子１２１３、信号を入出力するための接続端子１２１４，１２１５及びコールドプレート１５１に対し冷却液を循環させるための接続端子１２１６，１２１７を同一表面に露出させるようにしている。そして、筐体１１０に対しシャーシ装置１２１の接続端子１２１３〜１２１７を設けた面を収容するだけで、その側面のガイド溝１２１１、１２１２がガイドレール１３１、１４１に係合されて、接続端子１２１３〜１２１７がそれぞれ接続される接続端子１１１３〜１１１７の位置へ案内されることになる。以後、接続端子１２１３〜１２１７が接続端子１１１３〜１１１７に接続される際に、接続端子１１１３〜１１１７が浮動構造を成すことで、破損を起こすことなく確実に接続されることになる。
【００３６】
従って、電力増幅器１０１及びコールドプレート１５１を内蔵したシャーシ装置１２１を筐体１１０内に短時間で正確に装着または筐体１１０内からの取り出しができるようになり、これによりメンテナンスの能率向上及び接続に関する信頼性の向上を図るとともに、保守者の負担を大幅に軽減できる。また、シャーシ装置１２１前面に電源をオン・オフさせるスイッチを設けるようにすれば、保守者は簡単な操作で電源を立ち上げることができる。
【００３７】
また、万一、冷却用の接続端子１１１６，１１１７，１２１６，１２１７から冷却液が漏れてしまった場合にも、隣接する電力増幅器１０２がシャーシ装置１２２に内蔵される構成であるため、漏れた冷却液はシャーシ装置１２２の表面にかかることになり、これにより漏れた冷却液が直接電力増幅器１０２にかかることを防止できる。
【００３８】
さらに、筐体１１０のサイズを決める場合に、複数のシャーシ装置１２１〜１２ｎを筐体１１０に収容した状態に基づいて、最小のサイズに設計することができる。このため、電力増幅装置１００を放送局内に用いることにより、アナログ放送とデジタル放送とが共存する場合に、アナログ放送用電力増幅装置の設置スペース以外に余分な設置スペースがあれば、その設置スペースにデジタル放送用の電力増幅装置１００を設置することが可能となる。よって、デジタル放送用に新たな設置スペースを設けるために、放送局内全体の改修工事を行わずに済み、設置投資も大幅に軽減される。
【００３９】
なお、この発明は上記実施形態に限定されるものではない。例えばシャーシ装置内にコールドプレートを設ける例について説明したが、空冷用のヒートシンクに代えてもよい。
【００４０】
また、筐体内に設けられた接続端子を浮動構造とした例について説明したが、シャーシ装置の背面に設けられた接続端子を浮動構造とするようにしてもよい。
【００４１】
さらに、この発明は、放送局内の電力増幅装置に適用される例について説明したが、例えば適正な動作温度内で駆動し、小型化が要求されるような電子装置にもこの発明を適用することが可能である。もちろん、この場合、電力増幅器以外の電子部品を使用するようにしてもよい。
【００４２】
その他、筐体の構成、コールドプレートの構成や種類、液体循環経路の構成、接続端子の構造や種類、ガイドレールの種類、接続方法等についても、この発明の要旨を逸脱しない範囲で種々変形して実施できる。
【００４３】
【発明の効果】
以上詳述したようにこの発明によれば、簡単な構成で、例えば電力増幅器や冷却部材を筐体内に短時間で正確に装着または筐体内からの取り出しができるようにし、これによりメンテナンスの能率向上及び接続に関する信頼性の向上を図るとともに、保守者の負担を大幅に軽減し得る電子装置とそのシャーシ装置並びに筐体、及び放送用送信装置とそのシャーシ装置並びに筐体を提供することができる。
【図面の簡単な説明】
【図１】この発明に係る放送用送信装置を電力増幅装置に適用したデジタル放送局内のシステムの要部構成を示すブロック図。
【図２】この発明の実施形態における電力増幅装置の概略的構成を示す斜視図。
【図３】同実施形態で取り扱うシャーシ装置の構成を示す斜視図。
【図４】図３に示したシャーシ装置内部の電力増幅器及びコールドプレートの配置構成を示す斜視図。
【図５】シャーシ装置が筐体内に収容される様子を示す平面図。
【図６】シャーシ装置が筐体内に収容される際の接続端子同士の接続の様子を示す図。
【符号の説明】
１００…電力増幅装置、
１０１〜１０ｎ…電力増幅器、
１１０…筐体、
１２１〜１２９…シャーシ装置、
１３１，１４１…ガイドレール、
１５１…コールドプレート、
１６１…液体循環経路、
１１１３〜１１１７…接続端子、
１２１１…ガイド溝、
１２１３〜１２１７…接続端子。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic device and a broadcasting transmitter for efficiently radiating heat and performing maintenance efficiently for electronic components and power amplifiers used in a transmitting station that transmits a broadcast signal such as terrestrial digital broadcasting.
[0002]
[Prior art]
Conventionally, analog broadcast stations have used transmitters for analog broadcasts that amplify power to analog broadcast waves to be transmitted program information signals.
[0003]
In recent years, digital broadcasting has been started, and coexistence with analog broadcasting is considered until its spread. In this case, an analog broadcast transmission device and a digital broadcast transmission device are used together in one broadcast station, and thus it is strongly desired to reduce the size and space of both transmission devices.
[0004]
However, since each of the transmission devices has a configuration in which a plurality of power amplifiers are provided in parallel, when a reduction in size and space is achieved, a space between the plurality of power amplifiers is reduced. Heat dissipation becomes worse.
[0005]
Therefore, as a conventional heat countermeasure, it is conceivable to employ a liquid cooling method in which a cold plate for circulating a liquid inside the power amplifier is provided.
[0006]
In this liquid cooling system, it is possible to carry heat with a small volume by using a liquid having a large specific heat as an endothermic medium, and accordingly, the contact area between the heat-generating component and the cooling medium can be reduced. . As a result, the outer dimensions of the transmission device itself can be reduced.
[0007]
By the way, in the transmission apparatus for digital broadcasting, even if a failure occurs in a power amplifier that is in operation, it is necessary to replace only the failed power amplifier without stopping the operation. For this reason, the power amplifier is required to have a structure that can be easily detached from the transmitter body.
[0008]
[Problems to be solved by the invention]
However, in the power amplifying module with a cold plate having the above-described configuration, when the power amplifier module is attached to or detached from the transmitter body, a positional deviation between the power receiver of the power amplifier and the power supply unit on the transmitter side or the liquid receiver of the cold plate Due to the positional deviation from the liquid supply unit on the apparatus side, there is a risk that power supply or liquid supply may not be performed reliably, liquid leakage or the like may occur, or connection terminals may be damaged. For this reason, when the power amplifying module is mounted, the maintenance person inserts the power amplifying module from the front surface of the transmitting apparatus main body, and then turns to the back of the transmitting apparatus main body to connect the connection terminals. Further, when the power amplification module is taken out, the connection terminal is removed from the back of the transmitter main body, and then the power amplifier module is taken out from the front of the transmitter main body.
[0009]
Therefore, it takes a lot of time to attach and detach the power amplifying module, and it is a simple repetitive operation for a large number of power amplifying modules.
[0010]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to mount a power amplifier or a cooling member accurately in a short time in a casing or to take it out from the casing with a simple configuration, thereby improving maintenance efficiency and reliability related to connection. It is an object of the present invention to provide an electronic device, a chassis device and a casing thereof, and a broadcasting transmission device, a chassis device and the casing, which can improve the performance and can greatly reduce the burden on a maintenance person.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
(1) A first power source connection terminal for supplying power to the electronic component is provided on a part of the surface, the electronic component and a heat sink having a cooling liquid circulation path formed therein, and the first power source A plurality of chassis devices provided on the front surface with a first cooling connection terminal that circulates the cooling liquid through the radiator plate on the same surface as the connection terminal, and a switch for turning the power on and off independently. A housing having an opening, and a plurality of chassis devices stacked and accommodated in a vertical direction through the opening on the surface of the plurality of chassis devices provided with at least the first power connection terminal and the first cooling connection terminal; A second power connection terminal and a second power connection terminal that are provided at the chassis device fixing position in the housing and are connected to the first power connection terminal and the first cooling connection terminal of the chassis device when the chassis device is accommodated. Cooling connection terminals and multiple The first power connection terminal and the first cooling connection terminal are the second power connection terminal and the second cooling connection from the first state in which a part of the chassis device protrudes from the opening of the housing. An insertion guide for guiding to a second state connected to the terminal, wherein one of the first power connection terminal and the second power connection terminal has a floating structure, and the first cooling One of the connection terminal for cooling and the second connection terminal for cooling has a floating structure, and the first connection terminal for power supply, the first connection terminal for cooling, the second connection terminal for power supply, and the second The second cooling connection terminal is fixed when the second power connection terminal and the second cooling connection terminal are pushed into the first power connection terminal and the first cooling connection terminal, respectively. the connection is released when withdrawing the connecting second power supply terminal and a second cooling connection terminal Those were Unishi.
[0012]
According to the invention of (1), the electronic component and the heat radiating plate are built in the chassis device, and the cooling medium is circulated through the first power connection terminal and the heat radiating plate for supplying power to the electronic component. The first cooling connection terminal is exposed on the same surface, and the first power connection terminal and the first cooling connection terminal of the chassis device are only accommodated in the housing. The insertion guide portion guides the power supply connection terminal and the first cooling connection terminal to the positions of the second power supply connection terminal and the second cooling connection terminal. When the connection terminals are connected to each other, any one of them forms a floating structure, so that the connection terminals can be reliably connected without causing damage.
[0013]
Therefore, the chassis device incorporating the electronic components and the heat sink can be accurately mounted and removed from the housing in a short time, thereby improving maintenance efficiency and improving connection reliability. The burden on maintenance personnel can be greatly reduced. Also, in the unlikely event that the coolant leaks from the cooling connection terminal, the adjacent electronic components are built into the chassis device, so that the leaked coolant is applied to the surface of the chassis device. Thus, the leaked coolant can be prevented from being applied to the electronic component. Furthermore, when determining the size of the housing, the minimum size can be designed based on the state in which a plurality of chassis devices are accommodated in the housing.
[0014]
(2) A broadcast transmitter used in a transmission station that transmits a digital broadcast signal, and a heat amplifier that amplifies a program information signal to be broadcast into a digital broadcast signal and a heat dissipation that forms a circulation path for a cooling liquid therein A first power connection terminal for supplying power to the power amplifier on a part of the surface, a first signal input terminal for inputting a program information signal to the power amplifier, and outputting a digital broadcast signal; A first signal output terminal is provided, and the first cooling power source is connected to the first power connection terminal, the first signal input terminal, and the first signal output terminal, and the cooling liquid is circulated through the heat radiating plate. A plurality of chassis devices provided with connection terminals and each having a switch for independently turning on and off the power supply on the front surface, and at least a first power supply connection terminal of the plurality of chassis devices having an opening on at least the front surface, a first The faith A housing for stacking and housing a plurality of chassis devices in the vertical direction through the opening on the surface provided with the input terminal, the first signal output terminal, and the first cooling connection terminal, and a chassis device fixing position in the housing And a second power source connected to the first power connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling connection terminal of the chassis device when the chassis device is housed. The connection terminal, the second signal input terminal, the second signal output terminal, the second connection terminal for cooling, and the plurality of chassis devices from the first state in which a part protrudes from the opening of the housing. The power connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling connection terminal are the second power connection terminal, the second signal input terminal, the second signal output terminal, and the second signal output terminal. 2 to be inserted into the second state connected to the cooling connection terminal 2 A first power supply connection terminal and a second power supply connection terminal having a floating structure, and any one of the first signal input terminal and the second signal input terminal. One is a floating structure, and one of the first signal output terminal and the second signal output terminal is a floating structure, and one of the first cooling connection terminal and the second cooling connection terminal. One has a floating structure, a first power connection terminal, a first signal input terminal, a first cooling connection terminal, a second power connection terminal, a second signal output terminal, and a second The cooling connection terminal includes a second power connection terminal, a second signal output terminal, and a second cooling connection terminal. The first power connection terminal, the first signal input terminal, and the first cooling connection terminal, respectively. When pushed into the connection terminal, the connection is fixed, the second power supply connection terminal, the second signal output The connection is released when the terminal and the second cooling connection terminal are extracted .
[0015]
In the invention of (2), the same effect as that of the invention of (1) can be obtained.
[0016]
(3) When the power supply connection terminal and the cooling connection terminal that form the floating structure in the above (1) and (2) are completely connected to the connection terminal that is the connection partner, It has the structure which cancels | releases a lock | rock.
[0017]
According to (3), the improvement of the reliability regarding a connection can be improved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0019]
FIG. 1 is a block diagram showing the main configuration of a system in a digital broadcast station in which the broadcast transmitter of the present invention is applied to a power amplifier.
[0020]
As shown in the figure, the digital broadcasting station includes a power amplifying apparatus 100, an up-converter 200, a combiner 300, a band filter (BPF) 400, and an antenna 500.
[0021]
In the digital broadcasting station, the program information signal to be broadcast is frequency-converted to the radio frequency (RF) band by the up-converter 200 and supplied to the n power amplification modules 101 to 10n in the power amplification module 100, respectively. The n power amplifiers 101 to 10n are provided by the number required in the broadcast service area, are connected in parallel to each other, and can be switched on / off independently of each other, and can have RF signals with the same gain. After power amplification, it is output to the combiner 300.
[0022]
The outputs of the power amplification modules 101 to 10n are combined by the combiner 300, unnecessary wave components are removed by the BPF 400, and then transmitted as digital broadcast waves via the antenna 500.
[0023]
One embodiment of the present invention relates to the power amplifying apparatus 100 in FIG.
[0024]
FIG. 2 is a perspective view showing a schematic configuration of the power amplifying apparatus 100.
[0025]
In the figure, reference numeral 110 denotes a substantially box-shaped casing, and chassis devices 121 to 12n (only the chassis devices 121 to 129 are shown in FIG. 2) having power amplifiers 101 to 10n built in their openings can be attached and detached in the front-rear direction. It is accommodated to become. On the rear side of the housing 110, a signal input terminal for supplying an RF signal from the power supply and the up-converter 200 to the power amplifiers 101 to 104 and a signal amplified by the power amplifiers 101 to 104 are output. The signal output terminal is provided.
[0026]
In addition, a plurality of guide rails, which will be described later, are provided in a predetermined arrangement on the left and right side surfaces inside the housing 110.
[0027]
First, the n chassis devices 121 to 12n will be described by using the chassis device 121 as a representative.
FIG. 3A is a perspective view of the chassis device 121 viewed from the front, and FIG. 3B is a diagram of the chassis device 121 viewed from the top.
[0028]
The chassis device 121 is formed with guide grooves 1211 and 1212 (only the guide groove 1211 is shown in FIG. 3) on the left and right sides along the insertion direction into the housing 110 (the direction of arrow A in FIG. 3). A connection terminal 1213 for supplying power, a connection terminal 1214 for signal input, a connection terminal 1215 for signal output, a connection terminal 1216 for supplying coolant, and a connection terminal 1217 for discharging coolant are provided on the rear surface.
[0029]
Next, the inside of the chassis device 121 will be described.
That is, as shown in FIG. 4, the power amplifier 101 and the cold plate 151 are built in the chassis device 121. In the cold plate 151, a liquid circulation path 161 (indicated by a chain line in FIG. 4) for circulating the cooling liquid is formed substantially over the entire surface. In the liquid circulation path 161, the coolant supplied from the housing 110 side is circulated. The power amplifier 101 is placed on the upper surface of the cold plate 151.
[0030]
Next, a connection mechanism between the housing 110 and the chassis device 121 will be described.
When the chassis device 121 is inserted in the direction of arrow A in FIG. 5 into the opening of the housing 110 from the surface on which the connection terminals 1213 to 1217 are provided, first, the left and right guide grooves 1211 and 1212 are guided rails 131 and 141. Engage with. As the chassis device 121 is inserted deeper into the opening, the guide rails 131 and 141 cause the connection terminals 1213 to 1217 of the chassis device 121 to approach the connection terminals 1113 to 1117 provided in the housing 110. Be guided to.
[0031]
Here, the connection terminals 1113 to 1117 form a floating structure that swings up and down and left and right. When the chassis device 121 is pushed further deeper, the connection terminal 1215 is guided from the state of FIG. 6A to the state of FIG. 6B, and its head is brought into contact with the recess of the connection terminal 1115. At this time, the connection terminal 1115 guides the head of the connection terminal 1215 to the inside while swinging due to the floating structure, and then is completely connected to the connection terminal 1215 as shown in FIG. Note that the connection method of the connection terminal 1115 and the connection terminal 1215 is the same as the connection method of the connection terminal 1115 and the connection terminal 1215 with respect to the connection method of the connection terminal 1113 and the connection terminal 1214. To be done.
[0032]
Further, the connection terminals 1113 to 1117 have a function of locking the connection terminals 1213 to 1217 so as not to be removed when completely connected, and releasing the lock when removing the chassis device 121.
[0033]
Next, the operation of the power amplifying apparatus 100 configured as described above will be described. For example, when the power amplifying device 100 is operated in a state where the chassis device 121 is accommodated in the housing 110, power is supplied to the power amplifier 101 via the connection terminals 1113 and 1213. When the power amplifier 101 generates heat, this heat is transmitted to the cold plate 151.
[0034]
On the other hand, coolant generated from a radiator (not shown) installed outside the power amplifier 100 is supplied to the cold plate 151 via connection terminals 1116 and 1216. At this time, the cooling liquid is guided to the liquid circulation path 161 of the cold plate 151, deprives the heat generated from the power amplifier 101 when the power amplifier 100 is operated, and is discharged from the connection terminals 1117 and 1217. Accordingly, the heat generated from the power amplifier 101 is guided outside the housing 110 by the coolant, and thereafter, heat is exchanged by the radiator and returned to the liquid circulation path 161 of the cold plate 151 again.
[0035]
As described above, in the above embodiment, the power amplifier 101 and the cold plate 151 are built in the chassis device 121, the connection terminal 1213 for supplying power to the power amplifier 101, and the connection for inputting and outputting signals. Connection terminals 1216 and 1217 for circulating the coolant through terminals 1214 and 1215 and cold plate 151 are exposed on the same surface. Then, just by accommodating the surface of the chassis device 121 where the connection terminals 1213 to 1217 are provided with respect to the housing 110, the guide grooves 1211 and 1212 on the side surfaces are engaged with the guide rails 131 and 141, and the connection terminals 1213 to 1313 are engaged. 1217 will be guided to the positions of the connection terminals 1113 to 1117 to which each is connected. Thereafter, when the connection terminals 1213 to 1217 are connected to the connection terminals 1113 to 1117, the connection terminals 1113 to 1117 have a floating structure, so that the connection terminals can be reliably connected without causing damage.
[0036]
Therefore, the chassis device 121 including the power amplifier 101 and the cold plate 151 can be accurately mounted in the casing 110 or taken out from the casing 110 in a short time, thereby improving maintenance efficiency and connection. While improving reliability, the burden on maintenance personnel can be greatly reduced. If a switch for turning on / off the power supply is provided on the front surface of the chassis device 121, the maintenance person can start up the power supply with a simple operation.
[0037]
In the unlikely event that the coolant leaks from the cooling connection terminals 1116, 1117, 1216, and 1217, the adjacent power amplifier 102 is built in the chassis device 122. The liquid is applied to the surface of the chassis device 122, thereby preventing the leaked cooling liquid from being applied directly to the power amplifier 102.
[0038]
Furthermore, when determining the size of the housing 110, the minimum size can be designed based on the state in which the plurality of chassis devices 121 to 12n are accommodated in the housing 110. For this reason, by using the power amplifying apparatus 100 in the broadcasting station, if analog broadcasting and digital broadcasting coexist, if there is extra installation space other than the installation space for the analog broadcasting power amplifying apparatus, the installation space It becomes possible to install the power amplification device 100 for digital broadcasting. Therefore, in order to provide a new installation space for digital broadcasting, it is not necessary to carry out renovation work for the entire broadcasting station, and installation investment is greatly reduced.
[0039]
The present invention is not limited to the above embodiment. For example, although the example which provides a cold plate in a chassis apparatus was demonstrated, you may replace with the heat sink for air cooling.
[0040]
In addition, although the example in which the connection terminal provided in the housing has the floating structure has been described, the connection terminal provided on the back surface of the chassis device may have the floating structure.
[0041]
Furthermore, although the present invention has been described with reference to an example applied to a power amplifying apparatus in a broadcasting station, the present invention is also applied to an electronic apparatus that is driven within an appropriate operating temperature and requires a reduction in size. Is possible. Of course, in this case, electronic components other than the power amplifier may be used.
[0042]
In addition, the configuration of the casing, the configuration and type of the cold plate, the configuration of the liquid circulation path, the configuration and type of the connection terminal, the type of guide rail, the connection method, and the like can be variously modified without departing from the scope of the present invention. Can be implemented.
[0043]
【The invention's effect】
As described above in detail, according to the present invention, with a simple configuration, for example, a power amplifier and a cooling member can be accurately mounted in and removed from the housing in a short time, thereby improving maintenance efficiency. In addition, it is possible to provide an electronic device, its chassis device and casing, and a broadcast transmitter, its chassis device and casing, which can improve the reliability of connection and can greatly reduce the burden on the maintenance personnel.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main configuration of a system in a digital broadcast station in which a broadcast transmission apparatus according to the present invention is applied to a power amplification apparatus.
FIG. 2 is a perspective view showing a schematic configuration of a power amplifying device according to an embodiment of the present invention.
FIG. 3 is a perspective view showing a configuration of a chassis device handled in the embodiment.
4 is a perspective view showing an arrangement configuration of a power amplifier and a cold plate inside the chassis device shown in FIG. 3;
FIG. 5 is a plan view showing a state in which the chassis device is housed in the housing.
FIG. 6 is a diagram showing a state of connection between connection terminals when the chassis device is housed in a housing.
[Explanation of symbols]
100: Power amplification device,
101 to 10n: power amplifier,
110: housing,
121-129 ... Chassis device,
131, 141 ... guide rails,
151 ... Cold plate,
161: Liquid circulation path,
1113 to 1117 ... connection terminals,
1211 ... Guide groove,
1213 to 1217... Connection terminals.

Claims

A first heat source connection terminal for supplying power to the electronic component is provided on a part of the surface, and the first power source connection is provided. A plurality of chassis devices provided on the same surface as the terminals with a first cooling connection terminal that circulates the cooling liquid through the heat radiating plate, and a switch for turning the power on and off independently on the front surface ;
An opening is provided at least on the front surface, and the plurality of chassis devices are arranged in a vertical direction through the openings on the surface of the plurality of chassis devices provided with at least the first power connection terminal and the first cooling connection terminal. A housing for stacking accommodation;
A second power supply connection terminal and a second power supply connection terminal which are provided at the chassis device fixing position in the housing and are connected to the first power supply connection terminal and the first cooling connection terminal of the chassis device when the chassis device is accommodated. Connection terminals for cooling,
The first power connection terminal and the first cooling connection terminal are the second power connection terminal and the first power supply connection terminal and the first cooling connection terminal from the first state in which the plurality of chassis devices partially protrude from the opening of the housing. And an insertion guide for guiding to a second state connected to the two cooling connection terminals,
Any one of the first power connection terminal and the second power connection terminal has a floating structure, and any one of the first cooling connection terminal and the second cooling connection terminal. One with a floating structure ,
The first power connection terminal, the first cooling connection terminal, the second power connection terminal, and the second cooling connection terminal are the second power connection terminal and the second power connection terminal. When the cooling connection terminals are pushed into the first power connection terminal and the first cooling connection terminal, respectively, the connection is fixed, and the second power connection terminal and the second cooling connection terminal are fixed. The electronic device is characterized in that the connection is released when the connector is extracted .

A chassis device detachably accommodated in the housing according to claim 1,
An electronic component and a heat sink in which a cooling liquid circulation path is formed are incorporated, a first power connection terminal for supplying power to the electronic component is provided on a part of the surface, and the first power source Providing a first cooling connection terminal for circulating a cooling liquid on the heat radiating plate on the same surface as the connection terminal;
In addition, when the second power connection terminal and the second cooling connection terminal are fixedly provided inside the chassis device housing of the housing, the first power connection terminal and the first cooling connection terminal are provided. A chassis device characterized by having a floating structure.

A housing for detachably housing the chassis device according to claim 1,
A second power connection terminal and a second cooling provided at an internal chassis device fixing position and connected to the first power connection terminal and the first cooling connection terminal of the chassis device when the chassis device is accommodated. Connection terminals,
The first power connection terminal and the first cooling connection terminal are the second power connection terminal and the first power supply connection terminal and the first cooling connection terminal from the first state in which the plurality of chassis devices partially protrude from the opening of the housing. And an insertion guide for guiding to a second state connected to the two cooling connection terminals,
When the first power connection terminal and the first cooling connection terminal provided in the chassis device are fixed, the second power connection terminal and the second cooling connection terminal have a floating structure. A housing characterized by.

A broadcast transmitter used in a transmission station for transmitting a digital broadcast signal,
A first power amplifier for amplifying a program information signal to be broadcast into the digital broadcast signal and a heat sink having a cooling liquid circulation path therein are built in, and power is supplied to the power amplifier in part of the surface. A power connection terminal, a first signal input terminal for inputting a program information signal to the power amplifier, and outputting a digital broadcast signal; a first signal output terminal; and a first power connection terminal, A first cooling connection terminal for circulating cooling liquid through the heat sink is provided on the same surface as the first signal input terminal and the first signal output terminal, and a switch for independently turning on / off the power supply is provided on the front surface. A plurality of chassis devices,
At least a surface having an opening on the front surface and provided with at least the first power connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling connection terminal of the plurality of chassis devices. A housing that stacks and accommodates the plurality of chassis devices in the vertical direction through the openings;
A first power connection terminal, a first signal input terminal, a first signal output terminal, and a first cooling connection terminal of the chassis device that are provided at the chassis device fixing position in the housing and are accommodated in the chassis device. A second power connection terminal, a second signal input terminal, a second signal output terminal, and a second cooling connection terminal connected to
The first power supply connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling from a first state in which the plurality of chassis devices partially protrude from the opening of the housing. An insertion guide for guiding a second state in which the connection terminal is connected to the second power connection terminal, the second signal input terminal, the second signal output terminal, and the second cooling connection terminal. Equipped,
Either one of the first power connection terminal and the second power connection terminal has a floating structure, and any one of the first signal input terminal and the second signal input terminal A floating structure is used, and any one of the first signal output terminal and the second signal output terminal is a floating structure, and any one of the first cooling connection terminal and the second cooling connection terminal. Or one of them with a floating structure ,
The first power connection terminal, the first signal input terminal, the first cooling connection terminal, the second power connection terminal, the second signal output terminal, and the second cooling connection. The second power connection terminal, the second signal output terminal, and the second cooling connection terminal are the first power connection terminal, the first signal input terminal, and the first terminal, respectively. The connection is fixed when pushed into the cooling connection terminal, and the connection is released when the second power connection terminal, the second signal output terminal, and the second cooling connection terminal are extracted. Broadcast transmission device.

A chassis device detachably accommodated in the housing according to claim 4,
A first power source that includes a power amplifier that amplifies a program information signal to be broadcast into a digital broadcast signal and a heat sink that forms a circulation path for a cooling liquid therein, and supplies power to the electronic component on a part of the surface Connection terminal, a first signal input terminal for inputting a program information signal to the power amplifier, and outputting a digital broadcast signal, a first signal output terminal, and a first power connection terminal, Provided with a first cooling connection terminal for circulating a cooling liquid on the heat radiating plate on the same surface as the signal input terminal and the first signal output terminal.
And the second power connection terminal, the second signal input terminal, the second signal output terminal, and the second cooling connection terminal are fixedly provided inside the chassis housing of the housing. 1. A chassis device, wherein one power supply connection terminal, a first signal input terminal, a first signal output terminal, and a first cooling connection terminal have a floating structure.

A housing for detachably housing the chassis device according to claim 4,
Connected to the first power supply connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling connection terminal of the chassis device when the chassis device is accommodated. A second power connection terminal, a second signal input terminal, a second signal output terminal, and a second cooling connection terminal,
The first power supply connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling from a first state in which the plurality of chassis devices partially protrude from the opening of the housing. An insertion guide for guiding a second state in which the connection terminal is connected to the second power connection terminal, the second signal input terminal, the second signal output terminal, and the second cooling connection terminal. Equipped,
When the first power connection terminal, the first signal input terminal, the first signal output terminal, and the first cooling connection terminal provided in the chassis device are fixed, the second power connection terminal A housing in which the second signal input terminal, the second signal output terminal, and the second cooling connection terminal have a floating structure.