【発明の詳細な説明】〔概要〕無線通信装置の回路要部を箱状の本体部に収容し、冷却
を要する高周波増幅部を別体として冷却を効率的に行う
ようにして本体部に密接嵌着した構造。[Detailed Description of the Invention] [Summary] The main circuit parts of a wireless communication device are housed in a box-shaped main body, and the high-frequency amplification section, which requires cooling, is separated and placed in close contact with the main body for efficient cooling. Fitted structure.
本発明は小形化した無線）ｍ信装置のとくにその実装構
造に関する。The present invention particularly relates to a compact wireless communication device, and particularly to its mounting structure.
マイクロ波乃至はミリ波に亘る超高周波を利用した無線
装置は近年高周波領域までが固体化され、その小形化が
図られるとともに高密度実装が進み装置内部での発熱を
如何に効率よく放熱させるかが問題となる。In recent years, wireless devices that use ultra-high frequencies ranging from microwaves to millimeter waves have become solid-state even in the high-frequency range, and as they are becoming smaller and more densely packaged, the question is how to efficiently dissipate the heat generated inside the device. becomes a problem.
強制的に放熱するために電動量や冷却器を用いることは
電力を余分に要し得策でないことから自然放熱でかつ均
一に放熱させることが要求される。Using an electric motor or a cooler to forcibly dissipate heat requires extra power and is not a good idea, so it is required to dissipate heat naturally and uniformly.
ｉ１！ｌ信衛星を介し゛ζ遠隔乙こｊｌｊＥ線１ｆｆｌ
信を行・うには、送信出力を大きくすることが必要であ
る。そのための従来の無線Ｊ他装置を第７図の概略斜視
図に示す。架枠１１に取着された受信装置１２．送信装
置１３にはその１．要部が収容されており、隣接の高周
波増幅装置１４にＩＩ送送袋装置１３高周波ケーブル１
５で接続されている。i1! Remote communication via satellite
In order to transmit signals, it is necessary to increase the transmission output. A conventional wireless device for this purpose is shown in a schematic perspective view in FIG. A receiving device 12 attached to the frame 11. The transmitting device 13 has 1. The main parts are housed, and the adjacent high frequency amplification device 14 is connected to the II bag feeding device 13 and the high frequency cable 1.
Connected by 5.
高周波増幅装置１４の高周波出力信号ば導波管１６内に
出力伝送され偏分波器１７に至る。この偏分波器１７を
経て図示しない空中綿への導波管１８にさらムこ伝送さ
れる。−方ト記空中線から受信した高周波入力信号は導
波管１Ｂ内を伝送して偏分波器１７に至り、偏分波器に
接続された他方の導波管１９を経て受信装置１２に入力
される。The high frequency output signal of the high frequency amplifier 14 is output and transmitted into the waveguide 16 and reaches the polarization splitter 17 . The signal is further transmitted through the polarization splitter 17 to a waveguide 18 (not shown) to an airborne fiber. - The high frequency input signal received from the antenna is transmitted through the waveguide 1B, reaches the polarization splitter 17, and is input to the receiving device 12 via the other waveguide 19 connected to the polarization splitter. be done.
高周波出力は１４ Ｇ ＩＩ ｚ帯で空間伝搬姿態は垂
直偏波であり、高周波入力は１２ＧＩｌｚ帯で空間伝搬
姿態は水平偏波であるように例えば定められる。従って
導波管１８はこれら両姿態を伝送し得る例えば断面方形
成いけ円形の１ンのが用いられ偏分波器１７はこれら両
信号の出力、入力分離を行う。For example, it is determined that the high frequency output is in the 14 G II z band and the spatial propagation mode is vertical polarization, and the high frequency input is in the 12 G II z band and the spatial propagation mode is horizontal polarization. Therefore, the waveguide 18 is capable of transmitting both of these forms, and has a circular cross-section, for example, and the polarization splitter 17 separates the output and input of these two signals.
上記各装置６には信号線、制御線、電源線か多数接続さ
れるが、これらは図示を省略して示した。A large number of signal lines, control lines, and power supply lines are connected to each of the devices 6, but these are omitted from illustration.
そ・うしてこれら装置はそれぞれ独立してカバーが覆着
されて図示のように立方形をなしているが屋外露出には
不適であることから屋内、或いは適゛１１な防風「［１
筺体内に納められる。Although each of these devices is covered with a cover independently and has a cubic shape as shown in the figure, it is not suitable for outdoor exposure, so it is not suitable for indoor use or with appropriate wind protection.
It is housed inside the casing.
受信装置１２内には受信信号処理回路が、送信袋ｗ１３
には送信信号処理回路の最終出力迄の要部が収容されて
おり内部で発生ずる熱はそれぞれに十分に放熱処理され
て信頼度が維持される。A receiving signal processing circuit is included in the receiving device 12, and a receiving signal processing circuit is included in the transmitting bag w13.
The main parts of the transmission signal processing circuit up to the final output are accommodated, and the heat generated inside is sufficiently dissipated to maintain reliability.
画周波増幅装置１４は増幅器として進行波管（ＴＷＴ）
が用いられて送信装置１３からの高周波信号が増幅出力
されるようになっている。ごのＴ Ｗ Ｔは動作に際し
て多くの電力を要し発熱するので冷却維持することが必
要である。このため装置の垂直表面に大形の放熱器１４
ａを露出させこれと内部で接して自然空冷するようにし
ている。The picture frequency amplification device 14 uses a traveling wave tube (TWT) as an amplifier.
is used to amplify and output the high frequency signal from the transmitter 13. Since the T W T requires a lot of power and generates heat during operation, it is necessary to keep it cool. For this reason, a large heat sink 14 is installed on the vertical surface of the device.
A is exposed and in contact with it internally for natural air cooling.
上記従来の無線通信装置にあっては、受信装置、送信装
置、高周波増幅装置が独立した形であり、架枠により一
体となるものの全体として大きく、屋外に直接露出し２
て設置し得ないことから取扱い、保守等が不便であり、
空中線を含めて考えると大形、かつ複雑であるといった
問題がある。In the above-mentioned conventional wireless communication device, the receiving device, the transmitting device, and the high-frequency amplifying device are independent, and although they are integrated by a frame, they are large as a whole and are directly exposed outdoors.
It is inconvenient to handle, maintain, etc. because it cannot be installed directly.
When considering the antenna, there are problems in that it is large and complex.
上記従来の問題点を解決するための本発明の無線通信装
置によれば、第１図の断面図、第２図の斜視図に示した
ように、無線通信用回路の要部２１を収容廿る箱状の本
体部２２と、本体部２２０開［−１面２３を覆い密閉す
る着脱可能な敲２４と、本体部２２の底部２５の外面２
Ｅｉに接して着脱可能に取着・υる高周波増幅部２７
とを有してなることを要旨とする。According to the wireless communication device of the present invention for solving the above conventional problems, as shown in the cross-sectional view of FIG. 1 and the perspective view of FIG. a box-shaped main body 22, a removable handle 24 that covers and seals the -1 side 23 of the main body 220, and an outer surface 2 of the bottom 25 of the main body 22;
A high frequency amplification section 27 that is removably attached in contact with Ei.
The gist is to have the following.
また、本体部２２の側外面には放熱路２８を備え、高周
波増幅部２７は内面側に発熱性の高周波増幅回路２９を
密接実装し外面側に放熱路３０を備える。さらには、本
体部２２と蓋２４並びに高周波増幅部２７の接触部には
それぞれ少なくとも気密のための充填部材が囲繞介在さ
れる。Further, a heat dissipation path 28 is provided on the side outer surface of the main body portion 22, and a heat-generating high frequency amplification circuit 29 is closely mounted on the inner surface of the high frequency amplification section 27, and a heat dissipation path 30 is provided on the outer surface. Furthermore, a filling member for at least airtightness is provided surrounding the contact portions of the main body portion 22, the lid 24, and the high-frequency amplification portion 27, respectively.
本体部内には主として底部に送信回路、受信回路が左右
に分れて整然と実装されるから組立て、点検等が容易で
あり、それらの発熱は底部を経て側面に至り側外面の放
熱路から効率よく空間に自然放熱される。高周波増幅部
は底部の外面に別体として取着されるが、直接にその夕
（而の放熱路から空間に自然放熱され、全体として極め
て小形で防水性を備えることから空中線に直接に取４−
Ｊけることも可能である。Inside the main body, the transmitting circuit and receiving circuit are installed neatly on the left and right sides, mainly on the bottom, making assembly and inspection easy.The heat generated by these circuits passes through the bottom and reaches the side, and is efficiently dissipated from the heat radiation path on the outside. Heat is naturally radiated into the space. The high-frequency amplification section is attached separately to the outer surface of the bottom, but the heat is naturally radiated into the space from the heat radiation path. −
It is also possible to enter J.
以下に、本発明の無線通信装置について実施例により図
面を参照して具体的に説明する。EMBODIMENT OF THE INVENTION Below, the radio|wireless communication apparatus of this invention will be concretely demonstrated by an Example with reference to drawings.
第３図乃至第６図は本発明の一実施例であり、第３図は
蓋を開いた斜視図、第４図は横断面要部である。図にお
いて、無線通信用回路の受信部３１と送信部の要部３２
を収容する箱状の本体部３３と、本体部３３の開「１而
３４をＩＷい密閉する着脱可能な蓋３５と、本体部３３
の底部３〔；の夕）面３７に接して着脱可能にＩｆＶ、
着される高周波増幅部３Ｂとからなる。3 to 6 show one embodiment of the present invention, in which FIG. 3 is a perspective view with the lid open, and FIG. 4 is a cross-sectional view of the main part. In the figure, a receiving section 31 and a main section 32 of a transmitting section of a wireless communication circuit are shown.
a box-shaped main body 33 that houses the main body 33; a removable lid 35 that tightly seals the opening 34 of the main body 33;
IfV is removably attached to the bottom 3 surface 37 of the
It consists of a high frequency amplification section 3B attached.
本体部３３の筺体３９は上面間１−１３４の周囲はフラ
ンジ状であり、その面に２条の溝が形成され、内側の溝
４０には電磁遮蔽部材４１が、外側の溝４２には気密（
水密）用の護膜環４３が嵌挿囲繞しており（第４ａ図）
、蓋３５の同形のフランジ面は平坦面で、締結用のポル
Ｉ用ｆｌ、１４がそれらの外側に設けられζいる。The casing 39 of the main body 33 has a flange shape around the upper surface 1-134, and two grooves are formed on that surface, an electromagnetic shielding member 41 is provided in the inner groove 40, and an airtight member is provided in the outer groove 42. (
A protective film ring 43 (watertight) is fitted and enclosed (Fig. 4a).
, the same-shaped flange surfaces of the lid 35 are flat surfaces, and fastening poles fl and 14 are provided on the outside thereof.
筐体３９の側外面には多数の放熱！ｉ４５が形成されて
いる。また底部３６の外面３７ば平坦面である。There is a lot of heat dissipation on the side outer surface of the housing 39! i45 is formed. Further, the outer surface 37 of the bottom portion 36 is a flat surface.
高周波増幅部３８の筐体内面側には四部４６が形成され
、この凹部内面４７に密接して高周波増幅ユニット４８
がねし４９により取着されている。Four parts 46 are formed on the inner surface of the housing of the high-frequency amplification unit 38, and the high-frequency amplification unit 48 is in close contact with the inner surface 47 of the recess.
It is attached by bolts 49.
このユニット４８は詳細を示さないが一方に高周幅装置
よりなる。This unit 48 is not shown in detail, but consists on one side of a high-circumferential device.
また高周波増幅部３８の底部夕（面には横方向に多数の
放熱鰭５０が形成されており、本体部３３の底外面３７
と接する面５１は面３７と同形であるが周囲に２条の溝
が形成され、内側の溝５２には電磁遮蔽部材５３が、外
側の溝５４には気密（水密）用の護膜環５５が嵌挿囲繞
しており、その外側に締結用のボルト用孔５６が設けら
れている（第４ｂ図）。In addition, a large number of radiation fins 50 are formed in the horizontal direction on the bottom surface of the high frequency amplification section 38, and the bottom outer surface 37 of the main body section 33 is
The surface 51 in contact with the surface 37 has the same shape as the surface 37, but has two grooves formed around it, the inner groove 52 has an electromagnetic shielding member 53, and the outer groove 54 has an airtight (watertight) protective film ring 55. is fitted in and surrounds the bolt, and a bolt hole 56 for fastening is provided on the outside thereof (Fig. 4b).
−１−記、本体部筐体３９、蓋３５、増幅部筺体５７は
、それぞれに熱伝導性良好で強度が高く、耐腐ｉｉ！ｌ
！性に優れ、質の緻密なアルミニウム合金鋳物で一体に
形成して精密な加工仕−１−１げ、表面塗装処理等を行
うのが好ましい。-1- The main body housing 39, the lid 35, and the amplifier housing 57 each have good thermal conductivity, high strength, and corrosion resistance II! l
! It is preferable to integrally form a cast aluminum alloy with excellent properties and high quality, and perform precise machining, surface painting, etc.
本体部筺体３９の放熱鰭４５と高周波増幅出力体５７の
放熱鰭５０とは第３図示にて全体を水平位置として鉛直
方向としているが、表面を流れる空気の自然対流による
冷却に好都合な方向であり、第１．２図の同様にして水
平方向にしていることは全体を前後の傾斜位置とする場
合に空気の流れが好都合で効果的なものとなる。The heat dissipation fins 45 of the main body housing 39 and the heat dissipation fins 50 of the high-frequency amplification output body 57 are shown in the third figure in a vertical direction with the whole being in a horizontal position, but they are in a direction convenient for cooling by natural convection of air flowing over the surface. Similarly to Figure 1.2, the horizontal orientation is convenient and effective for air flow when the entire body is tilted forward and backward.
第３図において、Ａ側を空中線側、Ｂ側をケーブル類導
入側（／ｉｉＪれも図示なし）とする、Ａ側で５８は断
面円形の導波管であり両偏波を伝送可能に空中線と接続
される。この導波管５８の４１７５’は、蓋３５と高周
波増幅部３８の最大形状部分を含んで第４図の２点鎖線
Ｃで示される円の中心と一致する位置で本体部筺体３９
を貫）ｍしている。Ｂ側も同じ位置で外形円形のケーブ
ル導入「−１（図示なし）とすることにより、同軸で装
置全体をこれらの部分で回転可能に支持すると送信波、
受信波の偏波方向を万゛いに９０°異せた状態で何れか
に設定することが容易に行える。第１．２目１の場合に
ついても全く同様である。In Figure 3, the A side is the antenna side and the B side is the cable introduction side (/iiJ neither shown). On the A side, 58 is a waveguide with a circular cross section, and the antenna can transmit both polarized waves. connected to. 4175' of the waveguide 58 is located at the main body housing 39 at a position that coincides with the center of the circle shown by the two-dot chain line C in FIG.
(through) m. By introducing a circular cable (not shown) at the same position on the B side, if the entire device is coaxially supported rotatably by these parts, the transmitted wave,
It is possible to easily set the polarization direction of the received wave to any one with 90 degrees difference. The same applies to the case of 1.2 stitches 1.
第５図、第６図について、高１４波増幅ユニット４８と
空中線側への出力導波管との接続を示す。5 and 6, the connection between the high 14-wave amplification unit 48 and the output waveguide to the antenna side is shown.
なお第５図は斜視図、第６図は断面である。増幅部筺体
５７の四部４６には金属でなるユニット４Ｂの基板５９
が接しており、その平面には回路基板６０が載置され、
その上に平面回路（ストリップ線路）の出力端６１が形
成されている。Note that FIG. 5 is a perspective view, and FIG. 6 is a cross section. A board 59 of the unit 4B made of metal is mounted on the four parts 46 of the amplifier housing 57.
are in contact with each other, and a circuit board 60 is placed on the plane thereof,
An output end 61 of a planar circuit (strip line) is formed thereon.
ユニット４８の側面には出力端６１に幻応して貫ｊｍ孔
６２が開けられ、外側から変換導波管６３が取イ」板６
３′によりねじ止め固定される。変換導波管６３の一側
面には取付板６３′を含んで孔が開けられ、ここに誘電
体でなる管体６４が挿入される。管体６４の一方ば導波
管６３内他方側面に接し、他方は貫通孔６２内に延びる
。この管体６４の中心孔には結合用の中心導体６５が挿
入固定されており、一方は導波管６３の内面に所定長突
出し、他方は出力端６１十にあって電気、機械的に接続
される。A through-hole 62 is formed in the side surface of the unit 48 corresponding to the output end 61, and a conversion waveguide 63 is removed from the outside of the plate 6.
It is fixed by screws 3'. A hole including a mounting plate 63' is formed on one side of the conversion waveguide 63, and a tube body 64 made of a dielectric material is inserted into the hole. One side of the tube body 64 is in contact with the other inner side surface of the waveguide 63, and the other side extends into the through hole 62. A center conductor 65 for coupling is inserted and fixed into the center hole of the tube body 64, one of which protrudes a predetermined length from the inner surface of the waveguide 63, and the other is located at the output end 61 and is electrically and mechanically connected. be done.
出力端６１からの高周波増幅出力は中心導体６５に伝送
され、貫１ｆｔｌ孔６２、取付板６３′２導波管壁面の
孔の内面を外導体とする同軸線路モートに変換されて内
部を伝送する。中心導体６５の導波管突出部は、ここよ
り導波管内に高周波を放射励振し導波管モードとなり接
続フランジ６６側へ伝送される。以−にのように平面回
路、同軸線路、導波管線路のそれぞれの伝送モードに変
換伝送される。The high-frequency amplified output from the output end 61 is transmitted to the center conductor 65, converted into a coaxial line moat whose outer conductor is the inner surface of the hole in the waveguide wall through the 1 ftl hole 62 and the mounting plate 63'2, and is transmitted inside. . The waveguide protrusion of the center conductor 65 radiates high frequency waves into the waveguide, becomes a waveguide mode, and is transmitted to the connection flange 66 side. As described above, the signal is converted and transmitted to each of the transmission modes of the planar circuit, coaxial line, and waveguide line.
この変換導波管６３は高周波増幅部３８側に固定される
ことから本体部筐体の底面３６にはソランシロ６の）ｍ
過を可能とする孔６７が開けられている。この変換導波
管６３にフランジ接続される屈曲導波管６８は本体部３
３内に配置η固定され、送信側各種導波骨素−７′−（
図示なし）を介して円形導波管５８と接続さる。Since this conversion waveguide 63 is fixed to the high frequency amplification section 38 side, the bottom surface 36 of the main body housing is
A hole 67 is drilled to allow the passage. A bent waveguide 68 flange-connected to this conversion waveguide 63 is connected to the main body 3.
3, and various waveguide elements on the transmitting side -7'-(
(not shown) to a circular waveguide 58.
また、第３図を参照して円形導波管５８は、本体部内部
で偏分波器（図示なし）と接続しており、Ａ側からＢ側
に向けてト述の送信側各種導波管素子を介して屈曲導波
管６８と接続される。１−配信分波器の側面と接続され
た受信側導波管素子類６９が見られる。Further, referring to FIG. 3, the circular waveguide 58 is connected to a polarization splitter (not shown) inside the main body, and the various transmitting side waveguides described above are connected from the A side to the B side. It is connected to a bent waveguide 68 via a tube element. 1 - Receiving waveguide elements 69 connected to the sides of the distribution splitter can be seen.
送信部３２はＢ側から送信信号が入力され、低出力の送
信用高周波出力がＡ側に出力される。ここにおいて、高
周波増幅部３８に前述の変換導波管による接続あるいは
、同軸線路のみの二１不りタ結合がなされる。高周波増
幅部３ＢではＡ側からＢ側に至る間に高周波が高出力に
増幅されるから前述の変換導波管６３により導波管内に
変換出力し、偏分波器より円形導波管５８を介して空中
線に伝送出射する。The transmission section 32 receives a transmission signal from the B side, and outputs a low-power transmission high-frequency output to the A side. Here, the high frequency amplifying section 38 is connected by the above-mentioned conversion waveguide or by a 21 inverter coupling using only a coaxial line. In the high frequency amplification section 3B, the high frequency is amplified to a high output from the A side to the B side, so it is converted and output into the waveguide by the conversion waveguide 63 mentioned above, and the circular waveguide 58 is output from the polarization splitter. It is transmitted and emitted to the antenna through the antenna.
空中線に入射された微弱な受信高周波は、円形導波管を
経て偏分波器に至り、受信側導波管６９に分離される。The weak received high frequency wave incident on the antenna reaches the polarization splitter through the circular waveguide and is separated into the receiving side waveguide 69.
この受信側導波管６９の端部で同軸変換され、受信部３
１のＡ側において同軸結合して入力される。受信部３１
で電気信号処理されてＩ３側で受信信号が出力される。Coaxial conversion is performed at the end of this receiving side waveguide 69, and the receiving section 3
Coaxially coupled and input on the A side of 1. Receiving section 31
The electrical signal is processed at the I3 side, and the received signal is outputted at the I3 side.
〔発明の効果〕以上のように本発明装置によれば、受信系と送信系の要
部とが本体部に整然と収容され、蓋を外すのみでこれら
の点検、保守が行なえ、本体部での放熱は筐体、蓋、側
面の放熱鰭で十分行なえる。[Effects of the Invention] As described above, according to the device of the present invention, the main parts of the receiving system and the transmitting system are neatly housed in the main body, and these can be inspected and maintained simply by removing the lid. Heat dissipation is sufficient through the housing, lid, and heat dissipation fins on the sides.
高周波増幅部は本体底面とにより電気的に隔離遮蔽され
るから信頼度が高く、高出力増幅に伴う高い損失熱量も
多数広面積の放熱鰭によって十分＝ １１一本体部とは独立的に冷却し得る。The high-frequency amplification section is electrically isolated and shielded from the bottom of the main body, so it is highly reliable, and the high heat loss associated with high-output amplification is sufficiently prevented by the large number of wide-area heat dissipation fins. obtain.
全体として小形化とともに完全な防水、気密構造にでき
るので空中線に直接組合せることができるなど実用的効
果は著るしい。As a whole, it can be miniaturized and has a completely waterproof and airtight structure, so it can be directly combined with an antenna, and has remarkable practical effects.
第１図は本発明装置の原理的断面、第２図は第１図の蓋
を開けた斜視、第３図は本発明装置の一実施例の蓋を開
けた斜視、第４図は第３図の断面、第４ａ、４ｂ図は部
分断面、第５図、第６図は変換接続部の斜視と断面、第
７図は従来装置の斜視。図中、２１は回路要部、２２．３３は本体部、２４．３
５は蓋、２７．３８は高周波増幅部である。ホ発珂０源理的め面界 １−峯２２第 ５ 口牟 乙 口FIG. 1 is a cross-sectional view of the principle of the device of the present invention, FIG. 2 is a perspective view of FIG. 1 with the lid opened, FIG. 3 is a perspective view of an embodiment of the device of the present invention with the lid opened, and FIG. 4a and 4b are partial cross sections, FIGS. 5 and 6 are perspective views and cross sections of the conversion connector, and FIG. 7 is a perspective view of the conventional device. In the figure, 21 is the circuit main part, 22.33 is the main body part, 24.3
5 is a lid, and 27.38 is a high frequency amplification section. 1-Mine 22 5th Kuchimu Otsuguchi
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60207551AJPS6267936A (en) | 1985-09-19 | 1985-09-19 | wireless communication device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60207551AJPS6267936A (en) | 1985-09-19 | 1985-09-19 | wireless communication device |
| Publication Number | Publication Date |
|---|---|
| JPS6267936Atrue JPS6267936A (en) | 1987-03-27 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60207551APendingJPS6267936A (en) | 1985-09-19 | 1985-09-19 | wireless communication device |
| Country | Link |
|---|---|
| JP (1) | JPS6267936A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04264819A (en)* | 1991-02-19 | 1992-09-21 | Nec Corp | Module type communication equipment |
| US6628521B2 (en) | 2000-11-06 | 2003-09-30 | Adc Telecommunications, Inc. | Mechanical housing |
| US6781830B2 (en) | 2002-11-05 | 2004-08-24 | Adc Dsl Systems, Inc. | Methods and systems of heat transfer for electronic enclosures |
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| US6865085B1 (en) | 2003-09-26 | 2005-03-08 | Adc Dsl Systems, Inc. | Heat dissipation for electronic enclosures |
| US6894907B2 (en) | 2001-07-31 | 2005-05-17 | Adc Telecommunications, Inc. | Clamping case |
| US6897377B2 (en) | 2001-07-31 | 2005-05-24 | Adc Telecommunications, Inc. | Clamping receptacle |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04264819A (en)* | 1991-02-19 | 1992-09-21 | Nec Corp | Module type communication equipment |
| US6628521B2 (en) | 2000-11-06 | 2003-09-30 | Adc Telecommunications, Inc. | Mechanical housing |
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| US6894907B2 (en) | 2001-07-31 | 2005-05-17 | Adc Telecommunications, Inc. | Clamping case |
| US6897377B2 (en) | 2001-07-31 | 2005-05-24 | Adc Telecommunications, Inc. | Clamping receptacle |
| US6992249B2 (en) | 2001-07-31 | 2006-01-31 | Adc Telecommunications, Inc. | Clamping receptacle |
| US7269895B2 (en) | 2001-07-31 | 2007-09-18 | Adc Telecommunications, Inc. | Clamping case |
| US6862180B2 (en) | 2002-05-24 | 2005-03-01 | Adc Dsl Systems, Inc. | Housings for circuit cards |
| US6781830B2 (en) | 2002-11-05 | 2004-08-24 | Adc Dsl Systems, Inc. | Methods and systems of heat transfer for electronic enclosures |
| US6865085B1 (en) | 2003-09-26 | 2005-03-08 | Adc Dsl Systems, Inc. | Heat dissipation for electronic enclosures |
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