200417307 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一用於一電氣設備箱中之套件，用以提供 一環境控制系統來交換空氣，以對該箱内部進行散熱或進 行主動冷卻。更特定言之，本發明係關於一備便安裝 (ready-to-mount)之套件，其可安裝在一已投入使用之箱之 中或作為一準備安裝之新箱之面板或門，在該箱門之外部 上安裝一模組化叉流式熱交換器或空氣調節器。 【先前技術】 戶外電氣設備箱常常用於保護諸如電信設備此類之敏感 電氣設備免受損害、故意破壞與惡劣環境條件之影響。該 罩於該等箱中之電子元件於運行期間會產生熱量。因此， 需要一熱交換器或其他冷卻系統將熱量自該等箱散去。隨 著該等電子元件變得更小且在更高之功率密度下運行時， 箱需要更有效之散熱。 一傳統戶外電氣設備箱之示例揭示在美國專利U.S. 4,5 35,3 86(專利權人為Frey，Jr*.等）中。此箱使用一熱交換器 將内部所產生之熱量散去。該熱交換器交換該箱中空氣與 該箱外部周圍空氣之間之熱量，但不允許内部空氣與外部 空氣混合。因此，該箱内部在可維持為一實質上封閉或者 密封環境之同時，而仍可充分散熱。該熱交換器位於該箱 之主要部分中，靠近需要冷卻之該等電子設備。然而，該 熱交換器於箱内的存在會妨礙電纜連接各個電子元件，在 某種程度上使此等電纜之路線選擇更加困難。同樣，由於 90076 200417307 該熱交換器佔據大量之空間，故通常需要將箱造得更大以 便能容納該熱交換器。 美國專利1；.8.5,467,25〇(專利權人為11〇\^1(1等人）揭示一 電氣設備箱，該電氣設備箱使用一安裝於門上之熱交換器 ，藉此該熱交換器就不會佔據該電氣設備所需之内部空間 ，同時又可在該箱内部維持一封閉或密封之環境。利用安 裝於該箱之主要部分内部之動力風扇作為動力源，一系列 的輸送管與通風孔用於迫使内部空氣與外部空氣通過該熱 交換器中之通道。將該熱交換器安裝於該箱門内部或該門 之上，可更有效地利用該箱内部之可利用空間。 然而，Howard等人之專利中所使用之該熱交換器為一並 流式熱交換器，在該並流式熱交換器中該等傳輸内部空氣 之通道平行於該等傳輸外部空氣之通道。該熱交換器位於 一罩中，該罩包含雨、组叉合配置之通風孔，該等通風孔用 於傳輸内部空氣與外部空氣通過該熱交換器。為確保該外 部空氣流獨立於該内部空氣流，每組叉合配置之通風孔必 須相對於該等傳輸内部空氣之通道或該等傳輸外部空氣之 通道精確定位。此種排列存在之問題是，由於涉及精確之 公差，因此難於製造與裝配。 上述類型之氣對氣、以風扇作為動力之熱交換器系統安 裝在箱上，而該箱遠離該箱所有者之辨公室，此等類型之 熱交換器系統存在之其他問題與維護問題包括風扇失靈， 核心部分堵塞等問題。如果該熱交換器在每一流體回路上 僅有一空氣驅動裝置（舉例而言，風扇或鼓風機），則一單獨 90076 200417307 之風扇失靈實際上就會破壞該熱交換功能（性能下降接近 1 0 0%)。如果在每一流體回路上使用多個風扇，一風扇之失 靈能形成一開放空氣出口，其允許其中一些藉由該活動風 扇輸送之空氣流通過該失靈之風扇回流，而非通過該核心 部分回流從而導致無用之再循環空氣流，該再次循環之空 氣流會降低該熱交換器系統之综合性能，使其低於該第二風 扇不存在時所應達到之性能。 熱交換器核心部分之堵塞/結垢係因室外空氣中存在之灰 塵與塵垢所引起。隨著時間之增加，因灰塵與塵垢堵塞住 通過該熱交換器核心部分之空氣通路，減少了空氣流，因 此堵塞會降低該熱交換器系統之性能。當灰塵與塵垢覆蓋 該核心邵分之傳熱表面後，總熱阻增加，故該核心部分之 性能同樣會降低。 如果使用一吸入口過濾器來減輕前面之問題，則該過濾 器將最終會被灰塵與污垢阻塞，這樣進風風流將減少，從 而會降低該熱交換器系統之综合性能。因此，過漉器一般 需要頻繁更換。 由於該等箱所在之位置偏遠，故頻繁之維護巡修既不方 便又成本昂貴。如果將過濾器面板外置於該箱之外，則其 易於受到故意破壞者或未經授權者之損害。如果維護時需 要進入該箱，而該箱中配載有靈敏/昂貴/危險之電子設備， 則該項任務需要經過高度訓練之人士完成，而此相應地增 加了維修成本。 此外，該遠置之箱可能安置在住宅區，在這些地方要求 90076 200417307 限制噪首之產生。由於藉由該熱交換系統驅動之戶外六气 <體積增加，故噪音強度變大不可避免。因此最好藉由給 疋數量之環境空氣流進行最大程度地散熱。 、模組化設計可允許在新箱上進行安裝或作為現有箱體上 < 一更換件。系統之更換/升級能力至關重要。在升級並/ f替換了電子器件後’該設備箱之冷卻要求隨著時間之推 ^可能會發生變化。Λ要求任何冷卻冑決方案同樣亦可升 級。可能亦有必要將該冷卻解決方案進行改進，並將其應 用在野外現有之箱上。 — …戶外設備箱需要電信公司之大量投資；且在住宅區與商 業區中已有成千上萬個此等無任何環境控制系、统之箱。作 為用戶升級服務，簡單地將所有傳統之不符合環境控制要 士之控制箱用新箱替換並不可行，因為如此會導致成本過 -’勞動時間過長，且在替換期間可能會中斷服務。因此 能夠附加至傳統箱上恰當位置之改型後之 角:決万案’使其能為該新近更新後之電氣設備提供必要之 嚷境控制。組合使用一 士彳阿、、舍叩 八 大匕/慮备與一鬲效率熱交換器（該組 δ件固定在一外殼内側）將顯著降低維護所需之工作量，即 ’碼換被堵塞之過滹器所雲 Β ^ 、 〜听而又工作1，以及可允許只受過 p丨〈人士替扠過濾态，如此他們無需獲得接近該電 ，備之資格。如隨後之說明所述，此等要求與其他要求 可藉由本發明得到滿足。 【發明内容】 本發明提供一種環境批偏表 衣兄彳工制套件，其用在容納有生熱電氣 90076 200417307 設備之設備箱中。 另一方面，本發明提供一種電氣設備箱，該電氣設備箱 包括一附加上之環境控制系統套件，該環境控制套件已安 裝在該箱中。 更特定言之，該環境控制套件包括一氣對氣叉流式熱交 換器，該熱交換器可固定在一電氣設備箱之門或面板上， 並由該門或面板支撐，該熱交換器運行時將熱從該箱之内 部帶走，同時仍能維持該箱體中實質上為一封閉環境。該 套件包括該箱之一替換門或面板，在該門或面板上鐵有合 適之孔。為便於實用，在將該替換門或面板運送到現場之 前，將熱交換器套件安裝在該替換門或面板上。該熱交換 器限定了 一第一空氣流動通道用於將空氣自該箱之外部吸 入，並限定了一第二空氣流動通道用於將空氣自該箱之内 部排出。該第一與第二空氣流動通道相互近似正交且實質 上彼此隔離。每一空氣流動通道之一風扇元件同樣亦安裝 於一封閉空間中，該封閉空間由該門與該百葉窗式覆緣間 之空間形成，用於循環空氣通過該第一與第二空氣流動通 道其中之一。 根據本發明之另一方面，該套件安裝在該替換門之外部 且在該熱交換器上套有一外殼或罩，因此形成一自該門之 位於前面之外部向外延伸之閉合區，以便該電氣設備機殼 與該熱交換器機殼分離，且無需與該電氣設備機殼接觸就 可接近該熱交換器機殼。 根據本發明之另一方面，每一空氣流動通道之該風扇元 -10- 90076 200417307 件包括一對風扇。在一具體實施例中，該等風扇可彼此相 鄰安置。在一極佳之具體實施例中，該對風扇之間放置有 一折流板，用於將原來之空氣流動通道分為兩個平行之空 氣流動通道，該倆空氣流動通道實質上相互隔離。 根據本發明之另一方面，該箱亦包括上空氣流氣室與下 空氣流氣室，該上下氣室固定在門或面板之一内表面上。 該叉流式熱交換器元件以一種可拆卸可接合之方式支撐於 倆空氣流氣室之間。 根據本發明之另一方面，該替換門或面板包括第一與第 二外排氣孔，用於通過其中一空氣流動通道來傳輸外部之 空氣。 此處所用之此等術語具有如下之意義： 1. 術語“套件”與“備便安裝之套件”同義，係指一熱交換 器，一鼓風機，一外殼，一替換箱門或面板，以及所有用 於將該熱交換器套件安裝在戶外電信箱上之必要附件與組 裝設備。使用術語“套件”並非必定意指該交換器總成本身， 或指要求用戶將該交換器安裝在該替換門或面板上。術語 •“套件”之使用同樣不包括將該熱交換系統安裝在新箱上。 2. 術語“核心部分氣室”意指該熱交換器核心部分之一蓋 【實施方式】 圖1圖示一戶外電氣設備箱100，根據本發明，其具有一 安裝於門上之氣對氣熱交換器套件，包括一百葉窗式覆緣 102與一該箱之替換門。該箱原有一門，該門被替換門101 卯076 -11 - 200417307 替換。該熱交換器安裝於該替換門1 ο 1之外部；該套件還包 括一以鉸接之方式安裝於該熱交換器上之百葉窗式覆緣 1 0 2。該箱本身内部包括大量設備機架或通道組，這些設備 機架或通道組在一電氣設備外殼（圖中未顯示）之中。該百葉 窗式覆緣102有一大百葉窗式面板，該面板包括進氣百葉孔 1 03與排氣百葉孔1 04，從該箱之外部可見此等百葉孔。該 大百葉窗式面板有效地自外部環境吸入空氣。 圖2為一顯示其上安裝有該熱交換器套件之門之透視圖 ，此時該百葉窗式覆緣處於開啟狀態。該鉸接之百葉窗式 覆緣1 02形成一封閉空間，在該封閉空間中放置有一内罩 202。該百葉窗式覆緣102包括進氣通風孔103與出流通風孔 104。該内罩202容納該熱交換器，其包括該熱交換器之核 心部分203與外部鼓風機總成204。該鉸接之覆緣102具有大 之進氣百葉孔103與出氣百葉孔104，且固持一進氣濾塵器 205，該濾塵器過濾外部進入之空氣，以防灰塵污染與堵塞 該熱交換器核心部分203。該鉸接之覆緣102使得無需打開 面對該電子設備外殼之門就可維護該過濾器205並將其替 換。如此就能允許非電氣設備專業人士亦可維護該過濾器 。該鼓風機總成204有圓形進氣口 206，該進氣口相對於該 鉸接百葉窗式覆緣102之該進氣口壁207之夾角為65度角， 而非與進氣口壁平行。如此減少了該外部鼓風機直接暴露 於風雨中之面積，同時亦阻止鼓風機馬達所產生之噪音自 該外殼漏出。藉由在該鉸接之百葉窗式覆緣1 02提供一消音 減震薄膜，諸如一襯套（圖中未顯示），可進一步降低噪音。 90076 12 200417307 該附加上之熱交換器（包括替換門1 0 1或鉸接之面板與百 葉窗式覆緣1 02在内）安裝為使得該門/熱交換器單元之封閉 空間自該箱向外延伸，並與該箱内部或外殼分隔，該電氣/ 電子設備位於該封閉空間中。此配置使得在該箱内部為電 氣設備所留之空間增加至最大限度，且如所述，這樣亦極 為有利，因為這樣無需接觸該箱體内部就能維護該熱交換 器。 在圖3中，已移走了該核心部分氣室，其展示該可拆卸之 熱交換器之核心部分203、該内部鼓風機總成3 02與該内部 格栅303。使用其間具有一分隔用之折流板304之倆鼓風機 使得運行具有冗餘性。 圖4為該門與該熱交換器自該門之内部觀察時之視圖。該 内部鼓風機總成302與該内部格柵303自該電氣設備之内部 可見，但其並不突出至該分隔間中，因此將電子設備箱内 部之空間增加至最大限度。 圖5顯示該熱交換器之内部部件與子總成。此等部件一般 預先安裝在該替換門之外表面上用以形成一完整之熱交換 器總成。折流板501將兩外部鼓風機502之空氣流動通道分 隔開。同樣，内部折流板304將兩内部鼓風機504之空氣流 動通道分隔開。該套件中具有兩内部鼓風機與兩外部鼓風 機使得運轉具有冗餘性，因此如果一單個鼓風機，或外部 鼓風機，或内部鼓風機，因出現故障而停用，剩下之鼓風 機仍繼續運轉，使該電子設備分隔間免於受到空氣溫度快 速升高之影響，以免因溫度急遽升高而損壞靈敏設備與中 90076 -13 - 200417307 斷對用戶之服務。 圖6顯示該外部鼓風機總成204。L形狀之發泡材料塊601 有助於在該總成安裝於該門上時密封該等鼓風機通道。 圖7顯示該内部鼓風機總成302。該折流板304將該兩個鼓 風機504分隔開，該折流板之運轉藉由該控制器插件703控 制。 圖8顯示一黏合銘單向叉流式熱交換器核心部分2 0 3之結 構，該結構可使用在本發明中。該核心部分具有帶散熱片 之通道8 02與8 03，該等通道安置在交互正交之層中。每一 層包括複數個通道。當將層安裝於門上時，三個層形成該 内部空氣流動通道802，四個層形成該外部空氣流動通道 8 03。該外部空氣流動通道之額外層導致流阻更小。此有助 於抵銷該外部空氣流過滤器與百葉窗式覆緣之額外外部流 阻。 該熱交換器203位於該氣室中，如此該百葉窗式覆緣102 之進氣通風孔103對準該熱交換器203之水平通道803之進 流孔口。同樣，該百葉窗式覆緣102之出氣通風孔104對準 該熱交換器203之水平通道803之出流孔口。因此，該等水 平通道暴露在該密封箱外之空氣中。 在運行中，該箱100外部之空氣通過該百葉窗式覆緣102 之進氣通風孔1 03吸入，藉此外部之空氣流入至該水平通道 803中。空氣排出該水平通道803，且流經該百葉窗式覆緣 102之出氣通風孔104，從而排出該箱100。 内部之空氣中帶有藉由該箱1 00内部之電氣設備所產生 %076 -14- 200417307 之熱量，其被吸入至該熱交換器203之垂直通道802之進氣 孔口中。該内部空氣通過該垂直通道802傳輸，且經由該垂 直通道802之輸出孔口排出該熱交換器。以此種方式，該内 部空氣中所帶之熱量藉由強制對流與傳導性熱傳輸，傳遞 給通過該熱交換器203之水平通道803的外部空氣。 根據前面之描述，應暸解通過位於該箱1 00中之設備與該 熱交換器203之垂直通道802使得内部空氣之連續循環流得 以維持。同時，一單獨之外部空氣流或回路通過該百葉窗 式覆緣102之進氣孔103吸入，藉由風扇之作用而通過該熱 交換器203，且然後通過該百葉窗式覆緣102之通風孔104通 過並排出該箱1 00。由於該内部與外部空氣流回路相互隔離 而不相混，故於熱量藉由該熱交換器203自該箱内部排出之 同時，該箱1 00内部之環境仍保持為密封狀態。 為確保空氣之外部回路不與空氣之内部回路相混，可在 該核心部分氣室202上提供一防止該水平通道與垂直通道 終端間之空氣洩漏之密封劑。該密封劑可能為一矽化合物 ，舉例言之，應於該等氣室、熱交換器與面板207之接觸線 上提供該密封劑。 其百葉窗式覆緣包括一大百葉窗式面板與大過濾器並結 合一高效叉流式熱交換器之本發明之套件顯著降低了維護 該熱交換器所要求之維護巡修之次數。此降低了具有大量 此種箱之電信供應商之成本，同時還可允許無資袼接觸或 維修箱内部複雜電氣設備之人士維護該熱交換器。 如果需要更多之環境控制，此處所描述之熱交換器可藉 90076 -15 - JU/ 由一壓縮機驅動之熱力泵替、 一冷凝器。 曰’該熱力泵具有一蒸發器與 本發明之前述内容僅為示 ，本發明之範圍應僅由所附之：，並無限定之意圖。因此 【圖式簡單說明】 ，清專利範圍限定。 圖1為一戶外電氣箱之透视 入了-安裝於門上之氣對氣熱交換:虞本叙日月’ h乳箱併 圖2為顯示該熱交換器門套件、° 夕拉垃石4、 〈一透視圖，該熱交換器上 ，乂接百茱筲外殼處於開啟位 pe I ’其展現了其申之封閉命 間：：分氣室與外部進氣鼓風機總成； ； 圖為:㈣交換器核心部分氣室後之視圖，展示該可 斥I7 <為X換器核心部分、該內 — 、 通風孔各自之位置； '氣鼓風機總成與内部 圖為門與咸熱父換為自箱之内部觀察時之透視圖； 、、=5為邊热父換器（所有基本部件與總成之透視圖，係 3相〈内部（已將門隱藏）觀察時之透視圖。此等 丰：Q疋在該外部門或面板表面上用以形成_完整之埶六、 器系統； 〜\換 圖6為一外部鼓風機總成之透視圖； 圖7為一内部鼓風機總成之透視圖； 圖8為一又流式熱交換器核心部分之透視圖d 【圖式代表符號說明】 100 戶外電氣設備箱 101 替換門 90076 -16 - 200417307 102 百葉窗式覆緣 103 進氣通風孔 104 排氣通風孔 202 内罩 203 熱交換器之核心部分 204 外部鼓風機總成 205 進氣濾塵器 206 進氣口 207 進氣口壁 302 内部鼓風機總成 303 内部格柵 3 04 折流板 5 01 折流板 502 外部鼓風機 504 内部鼓風機 601 L形狀之發泡材料塊 703 控制器插件 802 内部空氣流動通道 803 外部空氣流動通道 -17 - 90076200417307 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a kit used in an electrical equipment box to provide an environmental control system to exchange air to cool or actively cool the inside of the box . More specifically, the present invention relates to a ready-to-mount kit that can be installed in a box already in use or as a panel or door of a new box ready for installation, where A modular cross flow heat exchanger or air conditioner is installed on the outside of the door. [Previous Technology] Outdoor electrical equipment boxes are often used to protect sensitive electrical equipment such as telecommunications equipment from damage, vandalism and harsh environmental conditions. The electronic components in the enclosures generate heat during operation. Therefore, a heat exchanger or other cooling system is required to dissipate the heat from the boxes. As these electronic components become smaller and operate at higher power densities, the box needs more efficient heat dissipation. An example of a conventional outdoor electrical equipment box is disclosed in U.S. Patent No. 4,5 35,3 86 (the patentees are Frey, Jr *., Etc.). This box uses a heat exchanger to dissipate the heat generated inside. The heat exchanger exchanges heat between the air in the box and the surrounding air outside the box, but does not allow internal air to mix with outside air. Therefore, while the interior of the box can be maintained in a substantially closed or sealed environment, it can still sufficiently dissipate heat. The heat exchanger is located in the main part of the box, close to the electronic equipment that needs to be cooled. However, the presence of the heat exchanger in the box prevents the cables from connecting the various electronic components, making the routing of these cables more difficult. Also, since the heat exchanger 90076 200417307 occupies a lot of space, it is usually necessary to make the box larger to accommodate the heat exchanger. U.S. Patent 1; .8.5,467,25 (the patentee is 11 0 \ ^ 1 (1 et al.) Discloses an electrical equipment box that uses a heat exchanger mounted on a door, whereby the heat The exchanger will not occupy the internal space required by the electrical equipment, while maintaining a closed or sealed environment inside the box. Using a power fan installed in the main part of the box as a power source, a series of transmissions Pipes and vents are used to force internal air and external air through the passages in the heat exchanger. The heat exchanger is installed inside or on the door of the box to make more efficient use of the available space inside the box However, the heat exchanger used in the Howard et al. Patent is a parallel-flow heat exchanger in which the channels for transmitting internal air are parallel to the channels for transmitting external air. The heat exchanger is located in a hood that contains rain and split vents. These vents are used to transport internal and external air through the heat exchanger. To ensure that the external air flow is independent of the Inside Air flow, each set of bifurcated ventilation holes must be accurately positioned relative to the channels that transmit internal air or the channels that transmit external air. The problem with this arrangement is that it is difficult to make and Assembly: The above type of air-to-air, fan-powered heat exchanger system is installed on the box, and the box is far from the box of the owner of the box. Problems include fan failures, clogged cores, etc. If the heat exchanger has only one air-driven device (for example, a fan or blower) on each fluid circuit, a single 90076 200417307 fan failure can actually destroy The heat exchange function (the performance drops close to 100%). If multiple fans are used on each fluid circuit, the failure of one fan can form an open air outlet, which allows some of the air delivered by the movable fan to circulate Fans returning through the failed fan, rather than flowing back through the core, causing useless recirculated air flow, The recirculated air flow will reduce the overall performance of the heat exchanger system and make it lower than the performance that should be achieved when the second fan is absent. The core block / fouling of the heat exchanger is caused by the presence of outdoor air Caused by dust and dirt. Over time, dust and dirt block the air passage through the core of the heat exchanger, reducing air flow, so the blockage will reduce the performance of the heat exchanger system. When dust and dirt After covering the heat transfer surface of the core, the total thermal resistance increases, so the performance of the core will also decrease. If an inlet filter is used to alleviate the previous problems, the filter will eventually be covered with dust and dirt If it is blocked, the inlet air flow will be reduced, which will reduce the overall performance of the heat exchanger system. Therefore, the damper generally needs to be replaced frequently. Because these boxes are located in remote locations, frequent maintenance and inspections are inconvenient and inconvenient. Costly. If the filter panel is placed outside the box, it is vulnerable to damage by vandals or unauthorized persons. If the box needs to be accessed for maintenance, and the box is loaded with sensitive / expensive / dangerous electronic equipment, then this task needs to be performed by highly trained personnel, which accordingly increases the maintenance cost. In addition, the remote box may be located in a residential area, where 90076 200417307 is required to limit noise generation. Since the outdoor six-gas < volume increased by the heat exchange system, the increase in noise intensity is inevitable. It is therefore best to dissipate the maximum amount of ambient air flow. The modular design allows installation on a new box or as a < replacement part on an existing box. The ability to replace / upgrade the system is critical. After upgrading and / f replacing electronics, the cooling requirements of this equipment box may change over time. Λ requires that any cooling solution can also be upgraded. It may also be necessary to improve this cooling solution and apply it to existing boxes in the field. —… Outdoor equipment boxes require substantial investment from telecommunications companies; and there are already tens of thousands of these boxes in residential and commercial areas without any environmental control system. As a user upgrade service, it is not feasible to simply replace all traditional control boxes that do not meet environmental control requirements with new ones, as this will result in excessive costs-’labor time is too long, and service may be interrupted during the replacement period. Therefore, it can be added to the corner of the traditional box after the retrofit: "Decision Case" to enable it to provide the necessary environmental control for the newly updated electrical equipment. The combined use of one dagger, one dagger, eight daggers / concentrations, and one efficiency heat exchanger (the set of δ pieces is fixed inside the housing) will significantly reduce the amount of work required for maintenance, that is, the code change is blocked. The pass device cloud B ^, ~ listen and work again, and can only allow people who have been filtered by the fork to filter the state, so they do not need to be qualified to access the electricity. As described later, these requirements and others can be satisfied by the present invention. [Summary of the Invention] The present invention provides an environmental batch partial table cloth manufacturing kit, which is used in an equipment box containing a thermoelectric 90076 200417307 device. In another aspect, the present invention provides an electrical equipment box, the electrical equipment box including an additional environmental control system kit, the environmental control kit having been installed in the box. More specifically, the environmental control kit includes an air-to-air cross flow heat exchanger that can be fixed to and supported by a door or panel of an electrical equipment box, and the heat exchanger operates At the same time, heat is taken away from the inside of the box while still maintaining a substantially closed environment in the box. The kit includes one of the boxes to replace the door or panel with suitable holes in the iron. For practical purposes, install the heat exchanger kit on the replacement door or panel before shipping it to the site. The heat exchanger defines a first air flow passage for sucking air from the outside of the box, and defines a second air flow passage for exhausting air from the inside of the box. The first and second air flow channels are approximately orthogonal to each other and are substantially isolated from each other. A fan element of each air flow channel is also installed in an enclosed space, which is formed by the space between the door and the louvered cover for circulating air to pass through the first and second air flow channels. one. According to another aspect of the present invention, the kit is mounted on the exterior of the replacement door and has a housing or cover over the heat exchanger, thus forming a closed area extending outwardly from the front exterior of the door so that the The electrical equipment casing is separated from the heat exchanger casing, and the heat exchanger casing can be accessed without contacting the electrical equipment casing. According to another aspect of the present invention, the fan element of each air flow channel includes a pair of fans. In a specific embodiment, the fans may be disposed adjacent to each other. In an excellent embodiment, a baffle is placed between the pair of fans to divide the original air flow channel into two parallel air flow channels, and the two air flow channels are substantially isolated from each other. According to another aspect of the present invention, the box also includes an upper air flow chamber and a lower air flow chamber, and the upper and lower air chambers are fixed to one of the inner surfaces of the door or panel. The cross flow heat exchanger element is supported between the two air flow plenums in a removable and engageable manner. According to another aspect of the present invention, the replacement door or panel includes first and second outer exhaust holes for transmitting outside air through one of the air flow passages. These terms used here have the following meanings: 1. The term "kit" is synonymous with "ready-to-install kit" and refers to a heat exchanger, a blower, an enclosure, a replacement box door or panel, and The necessary accessories and assembly equipment for mounting this heat exchanger kit on outdoor telecommunications boxes. The use of the term "kit" does not necessarily mean the total cost of the switch itself, or the user is required to install the switch on the replacement door or panel. Terminology • The use of "kits" also does not include the installation of the heat exchange system in a new box. 2. The term “core air chamber” means a cover of the core of the heat exchanger. The heat exchanger kit includes a one-hundred-window cladding 102 and a replacement door of the box. The box had one door, which was replaced by replacement door 101 卯 076 -11-200417307. The heat exchanger is mounted on the exterior of the replacement door 1 ο 1; the kit also includes a louvered rim 10 2 which is hingedly mounted on the heat exchanger. The box itself contains a large number of equipment racks or channel groups, which are housed in an electrical equipment enclosure (not shown). The louvered cover 102 has a large louvered panel, which includes an intake louver 103 and an exhaust louver 104. These louvers are visible from the outside of the box. The large louvered panel effectively draws air from the outside environment. FIG. 2 is a perspective view showing a door on which the heat exchanger kit is installed, and the louvered cover is opened at this time. The hinged louver-type covering edge 102 forms an enclosed space, and an inner cover 202 is placed in the enclosed space. The louvered cover 102 includes an air inlet vent 103 and an outlet vent 104. The inner cover 202 houses the heat exchanger, which includes a core portion 203 of the heat exchanger and an external blower assembly 204. The hinged covering edge 102 has large air inlet louver 103 and air outlet louver 104, and holds an air inlet dust filter 205, which filters external air entering to prevent dust from contaminating and blocking the core of the heat exchanger 203. The hinged rim 102 allows the filter 205 to be maintained and replaced without opening the door facing the housing of the electronic device. This allows non-electrical equipment professionals to maintain the filter as well. The blower assembly 204 has a circular air inlet 206, and the angle of the air inlet with respect to the air inlet wall 207 of the hinged louvered cover 102 is 65 degrees, rather than parallel to the air inlet wall. This reduces the area where the external blower is directly exposed to wind and rain, and also prevents the noise generated by the blower motor from leaking out of the housing. Noise can be further reduced by providing a sound-absorbing and shock-absorbing membrane, such as a bushing (not shown), on the hinged louvered cover 102. 90076 12 200417307 The attached heat exchanger (including replacement door 101 or hinged panel and shutter type rim 10 02) is installed so that the enclosed space of the door / heat exchanger unit extends outward from the box And is separated from the interior or enclosure of the box, and the electrical / electronic equipment is located in the enclosed space. This configuration maximizes the space left by the electrical equipment inside the box, and, as mentioned, it is also extremely advantageous, because the heat exchanger can be maintained without touching the inside of the box. In Fig. 3, the core portion air chamber has been removed, which shows the core portion 203 of the detachable heat exchanger, the internal blower assembly 302, and the internal grille 303. The use of two blowers with a deflector baffle 304 between them makes operation redundant. FIG. 4 is a view of the door and the heat exchanger when viewed from the inside of the door. The internal blower assembly 302 and the internal grille 303 are visible from the inside of the electrical equipment, but they do not protrude into the compartment, thus maximizing the space inside the electronic equipment box. Figure 5 shows the internal components and sub-assembly of the heat exchanger. These components are generally pre-installed on the outer surface of the replacement door to form a complete heat exchanger assembly. The baffle plate 501 separates the air flow path of the two external blowers 502. Similarly, the internal baffle plate 304 separates the air flow path of the two internal blowers 504. The kit has two internal blowers and two external blowers to make operation redundant, so if a single blower, or an external blower, or an internal blower, is disabled due to a failure, the remaining blowers continue to run, making the electronic The equipment compartment is protected from the rapid rise in air temperature, so as to avoid the sensitive equipment being damaged due to the rapid temperature rise and the service of the user to be interrupted by 90076 -13-200417307. FIG. 6 shows the external blower assembly 204. The L-shaped foamed material block 601 helps to seal the blower channels when the assembly is installed on the door. FIG. 7 shows the internal blower assembly 302. The baffle 304 separates the two blowers 504, and the operation of the baffle is controlled by the controller insert 703. Fig. 8 shows a structure of a core part 203 of a unidirectional cross-flow heat exchanger with a bonded inscription, which can be used in the present invention. The core section has channels 80 02 and 80 03 with fins, which are placed in layers that are orthogonal to each other. Each layer includes a plurality of channels. When layers are installed on the door, three layers form the internal air flow path 802, and four layers form the external air flow path 803. The extra layer of the external air flow channel results in a smaller flow resistance. This helps offset the extra external flow resistance of the external airflow filter and louvered cover. The heat exchanger 203 is located in the air chamber, so that the air inlet ventilation hole 103 of the louvered cover 102 is aligned with the inlet of the horizontal passage 803 of the heat exchanger 203. Similarly, the air vent hole 104 of the louvered cover edge 102 is aligned with the air vent of the horizontal passage 803 of the heat exchanger 203. Therefore, the horizontal channels are exposed to the air outside the sealed box. In operation, the air outside the box 100 is sucked through the air inlet vent hole 103 of the louvered cover 102, so that the outside air flows into the horizontal passage 803. Air exits the horizontal channel 803 and flows through the air vent holes 104 of the louvered cover 102 to exit the box 100. The internal air contains the heat of% 076 -14- 200417307 generated by the electrical equipment inside the box 100, which is sucked into the air inlet of the vertical channel 802 of the heat exchanger 203. The internal air is transmitted through the vertical passage 802, and is discharged from the heat exchanger through the output orifice of the vertical passage 802. In this way, the heat carried in the internal air is transferred to the external air passing through the horizontal passage 803 of the heat exchanger 203 by forced convection and conductive heat transfer. According to the foregoing description, it should be understood that the continuous circulation flow of the internal air can be maintained by the equipment in the box 100 and the vertical passage 802 of the heat exchanger 203. At the same time, a separate external air flow or circuit is sucked in through the air inlet holes 103 of the louvered cover 102, passes through the heat exchanger 203 by the action of a fan, and then passes through the ventilation holes 104 of the louvered cover 102 Pass and drain the box 100. Since the internal and external air flow circuits are isolated from each other without being mixed, while the heat is discharged from the inside of the tank by the heat exchanger 203, the environment inside the tank 100 remains sealed. To ensure that the external circuit of air does not mix with the internal circuit of air, a sealant may be provided in the core portion air chamber 202 to prevent air leakage between the horizontal and vertical channel terminals. The sealant may be a silicon compound. For example, the sealant should be provided on the contact line between the air chamber, the heat exchanger and the panel 207. The louvered cover includes a large louvered panel and a large filter combined with an efficient cross-flow heat exchanger. The kit of the present invention significantly reduces the number of maintenance visits required to maintain the heat exchanger. This reduces the cost of a telecommunications supplier with a large number of such boxes, while also allowing those who do not have access to or repair the complex electrical equipment inside the box to maintain the heat exchanger. If more environmental control is needed, the heat exchanger described here can be replaced by a heat pump driven by a compressor and a condenser. That is, the heat pump has an evaporator and the foregoing content of the present invention is for illustration only, and the scope of the present invention should be limited only by the following: and is not intended to be limited. Therefore, [Schematic explanation], the scope of Qing patent is limited. Figure 1 is a perspective view of an outdoor electrical box-air-to-air heat exchange installed on the door: Yu Ben Xu Riyue 'h breast box and Figure 2 shows the heat exchanger door kit, ° Xi La La Shi 4, < A perspective view, on the heat exchanger, the shell of the dogwood is in the open position pe I ', which shows its closed life :: the air distribution chamber and the external intake blower assembly; The view behind the air chamber of the core part of the air compressor, showing the position of the repulsive I7 < the core part of the X converter, the inner-and the vents; 'the air blower assembly and the internal picture are the door and the salty heat father are replaced by self Perspective view of the inside of the box; ,, = 5 are side heat parent converters (perspective views of all basic components and assemblies, which are 3-phase perspective views of the interior (the door has been hidden) when viewed. These are: Q 疋 is used on the surface of the outer door or panel to form a complete six-piece system; ~ \ Change Figure 6 is a perspective view of an external blower assembly; Figure 7 is a perspective view of an internal blower assembly; Figure 8 is a perspective view of the core part of a reflow heat exchanger d. 0 Outdoor electrical equipment box 101 Replacement door 90076 -16-200417307 102 Louvered cladding 103 Intake ventilation hole 104 Exhaust ventilation hole 202 Inner cover 203 Core part of heat exchanger 204 Outer blower assembly 205 Intake dust filter 206 In Air port 207 Air inlet wall 302 Internal blower assembly 303 Internal grille 3 04 Baffle 5 01 Baffle 502 External blower 504 Internal blower 601 L-shaped foamed material block 703 Controller insert 802 Internal air flow channel 803 Outside air flow channel-17-90076