522209 ^______ 經濟部中央標準局員工消費合作社印製 A7 B7 發明説明（丨） [所屬的技術領域] 本發明是有關於在一種具有定型壓縮機，以冷房循環 進行除霜運轉之空調機，且特別是有關於其除霜運轉之解 除方法。 [習知技術] 直至今日而言，包含有搭載定速型壓縮機的適於海外 的空g周裝置中，其係在空調裝置中設有一定時間的計時器 (timer)以作爲除霜運轉時間，以利用此計時器進行除霜運 轉的解除，或是，分別在室內單元及室外單元上裝配室內 控制裝置及室外控制裝置，藉由室內溫度感測器、室內熱 父換器溫度感測器及室外控制裝置、室外熱交換器溫度感 測益檢測出的各溫度，以進行除霜運轉之解除，或是，利 用室內溫度感測器、室內熱交換器溫度感測器的各溫度及 預設的除霜運轉的解除電流値，開始進行除霜運轉之解 除。 [發明欲解決的問題點] 然而，從各感測器檢測溫度以進行除霜運轉之解除的 方法中，在能確實進行除霜運轉的室外單元內設有室外熱 交換器溫度感測器等，而爲了能處理其溫度情報，其需裝 設室外控制裝置，因而耗費成本。又，在以預設電流値所 進行的控制中，雖可省去室外單元內的室外控制裝置及室 外溫度感測器，對成本來說有利，但是在電源電壓變化的 場合，因除霜運轉中電流値也會變化，因而可能會有殘霜 4 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 522209 A7 B7 8849pif.doc/008 五、發明説明（7) 或是過除霜運轉的問題點。 [解決問題點的手段] 申請專利範圍第1項記載的發明係包括:檢測出除霜 運轉中壓縮機的電流値，根據檢測出的電流値，利用演算 式求出作爲除霜運轉之基準的基準電流値，之後，檢測出 壓縮機之運轉電流値，並判斷此電流値是否超過前述基準 電流値。然後，其特徵在於具備一控制裝置，當運轉電流 値超過前述基準電流値時，則解除除霜運轉。 申請專利範圍第1項記載的發明，其特徵在於:除霜 運轉解除之基準電流値係，從檢測的除霜運轉中之壓縮機 之電流値和，預先儲存的常數之一演算式以求出。 申請專利範圍第3項記載的發明，其特徵在於:在求 出除霜運轉解除的基準電流値之演算式中所使用的常數 係，儲存在前述控制部中的複數個常數，並可選擇其中一 常數使用。 爲讓本發明之上述和其他目的、特徵、fa優點能更明 顯易懂，下文特舉一較佳實施例，並配合所附圖式，作詳 細說明如下： [圖式之簡單說明] 第1圖係繪示空調裝置之冷媒回路及控制回路的槪略 示意圖； 第2圖係繪示本發明之除霜運轉解除之一實施例之流 程圖;以及 5 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -----γ----— (請先閲讀背面之注意事項再填寫本頁) -訂I ί 經濟部中央標準局員工消費合作社印製 522209 A7 B7 8849pif.doc/008 五、發明説明（）） 第3圖係繪示第2圖之流程圖中，因電壓電源變化而 造成除霜運轉解除的基準電流値和壓縮機的運轉電流値之 差異圖。 [圖式標號之簡單說明] I :室外單元 2:室內單元 3a、3b:單元間配管 4a〜4e:單元間配線 10 :壓縮機 II :室外熱交換器 12 :室外送風機 13 ·.四向閥 14 :膨脹閥 15 :蓄電器 16a、16b :配供閥 17 :端子板 _ 20 :室內熱交換器 21 :室內送風機 22 :室內溫度感測器 23 :室內控制裝置 24 :電源繼電器 25 :電流感測器 26 :受丨目部 ---------%------:^]-----0— (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標隼（CMS ) A4規格（210X297公釐） 經濟部中央標準局員工消費合作社印製 522209 A7 8849pif.d〇C//〇〇8 五、發明説明（V 2 27 :插頭 2 8 :無線遙控益 [較佳實施例] 以下，請同時參照本發明之一實施例的第1圖〜第3 圖以進行說明。第1圖係繪示在室外單元上不裝設室外熱 交換器溫度感測器及室外控制裝置，而進行除霜運轉的空 調裝置之槪略圖。在室外單元1上具備有:壓縮冷媒的壓 縮機10、和外氣進行熱交換’冷房運轉時朝外氣放熱，暖 房運轉時，從大氣吸熱的室外熱交換器11、將冷媒的循環 方向反轉的四向閥13、膨脹閥14、蓄電器(accumulator)15、 連接可從室內單元;延長的單元間配管的配供閥（service valve) 16a及16b，各機器係利用冷媒配管相連接。此外， 前述室外單元1上係內建有:朝前述室外熱交換器11送風 的室外送風機12、連接從室內單元延伸的單元間配線的端 子板17。 一方面，在室內單元2上具備有:和室_內空氣熱交換 的室內熱交換器20、朝室內熱交換器送風的室內送風機 21、檢測出室內溫度的溫度感測器22、控制此空調裝置全 體的室內控制裝置23，在此室內控制裝置23上係內建有: 使壓縮機暫停（shout down)的電源繼電器(P〇wer relay)24、 檢測出運轉電流値的電流感測器25。而且’在前述室內單 元2的室內控制裝置23上係，從操作此空調裝置進行暫 停等的無線遙控器（wireless remote contro卜以下簡稱爲遙 7 ---------— (請先閲讀背面之注意事項再填寫本頁) ’訂 本紙張尺度適用中國國家標隼（CNS ) A4規格（210X297公廣） 522209 A7 B7 8849pif.doc/008 五、發明説明（t ) 控器)28，把接受運轉情報的受信部26和接受電源供給的 插頭(plug)相連接。 ---------— (請先閲讀背面之注意事項再填寫本頁) 前述室外單元1係，把從前述室內單元2延伸的2 根單元間配管3，連接到配供閥16a及16b，同樣地，把 從前述室內單元2延伸的5根單元間配線4，連接到端子 板17上。 在此，以冷媒的流向作爲說明，通常，在空調裝置 的暖房運轉時，首先，使四向閥13爲開（cm)，壓縮機1〇 所壓縮的冷媒係，如虛線箭頭所示，通過四向閥13，經由 配供閥16a、單元間配管3a，並利用室內單元2的室內熱 交換器20,接受從室內送風機21而來的送風以進行放熱， 再經由單元間配管3b及配供閥16b，返回前述室外單元1， 通過膨脹閥14，並利用室外熱交換器11，接受從室外送 風機12而來的送風以進行吸熱，再經由四向閥13、蓄電 器15，朝向前述壓縮機10傳送，以進行暖房循環之運轉。 經濟部中央標準局員工消費合作社印製 另一方面，冷房運轉時，首先使四向閥1J3爲關（off)， 壓縮機10所壓縮的冷媒係，如實線箭頭所示，通過四向 閥13，送到室外熱交換器11，並接受從室外送風機12而 來的送風以進行放熱，再通過膨脹閥14、配供閥16b及單 元間配管3b，朝室內單元2的室內熱交換器20傳送，在 此處利用從室內送風機21而來的送風以進行吸熱，並通 過單元間配管3a及配供閥16a，返回室外單元1，再經由 前述四向閥13、蓄電器15，朝向前述壓縮機10傳送，以 8 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐) ^ 522209 A7 B7 8849pif.doc/ 008 五、發明説明（L ) 進行冷房循環之運轉。 (請先閲讀背面之注意事項再填寫本頁) 在除霜運轉時，其雖然是進行和此冷房運轉時相同 的冷房循環，但是室外送風機12和室內送風機21係無風 或是以弱風進行送風運轉。 又，控制動作係，首先，把插頭27連到電源插座， 以準備接受電源之供給，並利用前述遙控器28選擇冷房 運轉或暖房運轉中之一的運轉模式，將室內的希望溫度當 作遙控器28的設定溫度以設定，以前述運轉開關（switch) 發送開始運轉的訊息。當在前述受信部26接收到開始運 轉的訊息時，藉由前述受信部26所接收的運轉模式，室 內控制裝置23的運轉模式若是在冷房運轉時，會將前述 室外單元1的四向閥13關閉（off)，若是在暖房運轉時， 會將四向閥13打開（on)，並使室內送風機21開（on)，計 算從前述受信部26接受訊號的前述遙控器28而來的設定 溫度，和利用室內溫度感測器22檢測的溫度之溫度差， 並利用此溫度差打開室外送風機12、電源峰電器24,以 進行空調運轉。 經濟部中央標準局員工消費合作社印繁 當上述空調裝置選擇暖房運轉而運轉時，要將前述 四向閥關閉，使冷媒的循環反轉，以進行作爲冷房循環的 除霜運轉，而若檢測出除霜運轉之解除時，便解除除霜運 轉，打開四向閥，又再繼續暖房運轉。 本發明的除霜運轉解除之檢測方法及判斷方法係， 參照第2圖之流程圖以說明之，當除霜運轉一開始時，四 9 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X 297公釐） 522209 A7 B7 8849pif.doc/ 008 五、發明説明（)） (請先閲讀背面之注意事項再填寫本頁) 向閥13爲關閉（S1)，並把冷媒循環當作冷房循環，以使室 外單元1的壓縮機10運轉（S2)，使計時器a動作（S3)。此 計時器a係，組裝在室內控制裝置23以計數(count)除霜 運轉的時間。 然後，除霜運轉開始時，因壓縮機的機種，其運轉 電流値會有不穩的情況，忽略掉此情況，設好壓縮機10 的電流値檢測之遮蔽時間（mask time)，檢測前述計時器a 是否已經過3秒鐘（S4)，若未經過，則重覆確認此經過時 間，若已經過，則先把壓縮機1〇的電流値I當作初期電 流値Is檢測出，並保存於前述室內控制裝置23內之第1 記憶體（S5)〇 #1. 經濟部中央標準局員工消費合作社印裝 接著，再檢測出前述壓機1〇的電流値I(S6)，並把 前述保存在第1記憶體的初期電流値Is和檢測出的壓縮機 10的電流値I相比較（S7)，若前述電流値I未滿於初期電 流値Is，則將其作爲演算電流値Ik，並保存於前述室內控 制裝置23內的第2記憶體內（S8) ’若前述電流値I和前述 初期電流値Is相同，或是大於初期電流値Is時，便把初 '期電流値Is當作演算電流値Ik ’並保存到前述第2記憶 體內（S9)。 然後，確認前述計時器a是否已經過1分鐘（S10)， 若未經過，則返回前述步驟6 ’重覆上述步驟6以後的控 制，若前述計時器a已經過1分鐘，便用步驟8或步驟9 的第2記憶體中保存的演算電流値Ik，及預先儲存在室內 10 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公瘦） 522209 經濟部中央標準局員工消費合作社印製 8849pif.doc/008 五、發明説明（2 ) 單元2內的室內控制裝置23之常數F和K進行演算（S 11)， 將之作爲除霜運轉解除的基準電流値Id，並保存在前述室 內控制裝置23內的第3記億體內（S12)。此常數F及K係， 所使用的壓縮機的各能力，或是由壓縮機的各製造商所決 定的數値，在前述室內單元2的室內控制裝置23內的前 述從第1到第3記億體以外的其他記憶體有複數個數値’ 舉例而言，係於製造商處進行生產等時，從此數値中分別 選出1組的數値。 - 然後，在此之後，檢測此除霜運轉中的壓縮機10的 電流値I(S13)，判斷其是否超過前述求出的基準電流値 Id(S14)，若壓縮機10的電流値I不足，則照舊繼續除霜 運轉，並返回步驟13，再一次檢測壓縮機10的電流値I， 再重覆其和前述基準電流値Id的比較。若壓縮機10的電 流値I超過的話，則把前述室內控制裝置23內的第1到 第3記憶體所保存的前述基準電流値Id、前述初期電流値 Is、前述演算電流値Ik淸除(clear)(S15〜S17)_，將計時器a 重設(reset)(S18)，再解除除霜運轉而返回一般暖房運轉。 在此，利用上述第2圖之流程圖之（S11)演算式所計 算的除霜運轉解除之基準電流値Id舉例說明如下，從預 設於室內控制裝置23的複數個數値中分別選出F及K， P4.78 ’ Κ=0·591，舉例而言，電源電壓爲定格電壓（產品 出廠時預設之安全範圍內的工作電壓値)Va[伏特]時，從上 述第2圖之流程圖最後往上述第2記憶體保存的演算値Ik 11 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ---------— (請先閲讀背面之注意事項再填寫本頁) •訂_ 522209 8849pifl.doc/015 Λ7 B7 五、發明說明（~) ' =4.0+ (4.78-4.0)x 0.591 +4.46 (3) 此時，除霜運轉解除的基準電流値Id則爲4.46[安 培]= Idc。然後，在壓縮機10的電流値超過此基準電流値Idc 的時間點tc把除霜運轉解除。 將此，在縱軸上取得最後朝前述第2記憶體保存的演 算電流値Ik、電源電壓V，在橫軸上取得此壓縮機的除霜 運轉時間t，利用上述的電源電壓Va〜Vc、最後朝除霜運轉 中的前述第2記憶體所保存的演算電流値la〜Ic，以第2圖 之流程圖（S11)的演算式所求出的除霜運轉解除之基準電流 値I d a〜I d c係，分別如第3圖所不，當電源電壓V變動到 I w 上昇方向時，前述基準電流値Id也會變高，因而不會有過 早解除除霜運轉的情況，故可達成無殘霜的除霜運轉，相 反地，也不會有過遲解除除霜運轉的情況，故可防止過除 霜運轉。 [發明之效果] 由以上的說明，因本發明檢測出除霜運轉中壓縮機之 電流値，並根據此檢測出的電流値以求出除霜運轉解除的 基準電流値，再於求出前述基準電流値之後，檢測出壓縮 機的驅動電流，當此驅動電流比前述基準電流値大時，則 解除除霜運轉，是故不會有殘霜或是過除霜運轉等的問題-點，因而可達到適切的除霜運轉之解除。 又，因不需使用到室內溫度感測器，以及室內熱交換 本紙ifi尺度適用中0Θ家標準（CNS)A4規格（210 x 297公复） * ^裝！ —訂---------線 (請先閱讀背面之注意事項再衡寫本頁) 經濟部智慧«產局員工消費合作社印鉍 522209 五、發明説明（\' ) 器溫度感測器，或是室外熱交換器溫度感測器，且又不需 測定電源電壓，因而可應甩於廣範的電源電壓範圍之除霜 運轉之解除。 ---------^9— (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐）522209 ^ ______ A7 B7 printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economics (丨) [Technical Field] The present invention relates to an air conditioner with a fixed compressor that performs defrosting operation in a cold room cycle, and In particular, there is a method for removing the defrost operation. [Know-how] Until now, the air-gap equipment suitable for overseas, which includes a fixed-speed compressor, has a timer for a certain period of time in the air-conditioning unit for defrost operation. Time to use this timer to cancel the defrosting operation, or to install indoor control devices and outdoor control devices on indoor units and outdoor units, respectively, and use the indoor temperature sensor and indoor heat exchanger temperature sensing Temperature detected by the temperature sensor and outdoor control device and outdoor heat exchanger to cancel the defrosting operation, or use the temperature and temperature of the indoor temperature sensor and indoor heat exchanger temperature sensor. The preset defrost operation release current 値 starts the release of the defrost operation. [Problems to be Solved by the Invention] However, in the method for detecting the temperature from each sensor to cancel the defrosting operation, an outdoor heat exchanger temperature sensor or the like is provided in an outdoor unit capable of reliably performing the defrosting operation. In order to be able to process its temperature information, it needs to be equipped with outdoor control devices, which consumes costs. In addition, in the control performed by the preset current 虽, although the outdoor control device and the outdoor temperature sensor in the outdoor unit can be omitted, which is advantageous in terms of cost, but when the power supply voltage changes, the defrost operation is required. The medium current 値 will also change, so there may be residual frost4 (Please read the precautions on the back before filling this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 522209 A7 B7 8849pif.doc / 008 V. Description of the invention (7) Or the problem of over-defrosting operation. [Means for solving problem points] The invention described in the first patent application scope includes: detecting the current 检测 of the compressor during defrosting operation, and using the calculated current 求 to determine the value of the defrosting operation using a calculation formula. The reference current 値 is then used to detect the operating current 压缩机 of the compressor and determine whether this current 超过 exceeds the aforementioned reference current 値. Then, it is characterized by including a control device that cancels the defrosting operation when the operating current 値 exceeds the aforementioned reference current 値. The invention described in claim 1 is characterized in that the reference current of the defrost operation is canceled, which is calculated from the sum of the current of the compressor during the defrost operation detected and one of the constants stored in advance to obtain . The invention described in item 3 of the scope of patent application is characterized in that a constant system used in a calculation formula for obtaining a reference current 解除 for defrost operation release is stored in the plurality of constants in the control section, and can be selected among them A constant is used. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is described below in detail with the accompanying drawings as follows: [Simplified description of the drawings] Section 1 The diagram is a schematic diagram showing a refrigerant circuit and a control circuit of an air conditioner; FIG. 2 is a flowchart showing an embodiment of the defrost operation cancellation of the present invention; and 5 paper standards are applicable to the Chinese National Standard (CNS) A4 specifications (210X 297 mm) ----- γ ----- (Please read the notes on the back before filling this page)-Order I ί Printed by the Central Consumers Bureau of the Ministry of Economic Affairs Consumer Cooperatives 522209 A7 B7 8849pif .doc / 008 5. Description of the invention ()) Figure 3 is a diagram showing the difference between the reference current 値 and the compressor's operating current 解除 due to the defrost operation being canceled due to a change in voltage and power supply in the flowchart in Figure 2. [Simplified description of drawing numbers] I: Outdoor unit 2: Indoor unit 3a, 3b: Inter-unit piping 4a ~ 4e: Inter-unit wiring 10: Compressor II: Outdoor heat exchanger 12: Outdoor blower 13 ... Four-way valve 14: Expansion valve 15: Storage batteries 16a, 16b: Distribution valve 17: Terminal board_ 20: Indoor heat exchanger 21: Indoor blower 22: Indoor temperature sensor 23: Indoor control device 24: Power relay 25: Current sensing Device 26: Accepted by the head section ---------% ------: ^] ----- 0— (Please read the precautions on the back before filling this page) Central Standard of the Ministry of Economic Affairs The paper size printed by the Bureau ’s Consumer Cooperative is applicable to the Chinese National Standard (CMS) A4 specification (210X297 mm). It is printed by the Employee ’s Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 522209 A7 8849pif.d〇C // 〇〇08 (V 2 27: Plug 2 8: Wireless remote control [Preferred Embodiment] Hereinafter, please refer to FIGS. 1 to 3 of an embodiment of the present invention for explanation. The first figure is shown in an outdoor unit. The strategy of an air-conditioning device that does not install an outdoor heat exchanger temperature sensor and an outdoor control device and performs defrosting operation The outdoor unit 1 is provided with a compressor 10 that compresses the refrigerant, and performs heat exchange with the outside air. During the cooling room operation, heat is released to the outside air, and during the heating room operation, an outdoor heat exchanger 11 that absorbs heat from the atmosphere, and the circulation direction of the refrigerant. Reversed four-way valve 13, expansion valve 14, accumulator 15, connection from indoor units; service valves 16a and 16b of extended inter-unit piping, each machine is connected by refrigerant piping. In addition, the outdoor unit 1 includes an outdoor blower 12 that sends air to the outdoor heat exchanger 11 and a terminal board 17 that connects inter-unit wiring extending from the indoor unit. On the one hand, the indoor unit 2 includes: The indoor heat exchanger 20 for indoor and indoor air heat exchange, the indoor blower 21 that sends air to the indoor heat exchanger, the temperature sensor 22 that detects the indoor temperature, and the indoor control device 23 that controls the entire air conditioner. The device 23 has built-in: a power relay 24 that shuts down the compressor, and a current sensor 25 that detects the operating current 値. Furthermore, 'in the aforementioned room A wireless remote control (wireless remote contro, hereinafter referred to as remote 7) from the indoor control device 23 of the unit 2 is operated from the operation of the air-conditioning device to pause, etc. (Please read the precautions on the back first (Fill in this page again) 'The paper size of the book applies to the Chinese National Standard (CNS) A4 specification (210X297). 522209 A7 B7 8849pif.doc / 008 V. Description of the invention (t) Controller) 28, The receiving unit 26 is connected to a plug that receives power supply. ---------— (Please read the precautions on the back before filling this page) The outdoor unit 1 is connected to the 2 inter-unit piping 3 extending from the indoor unit 2 to the distribution valve 16a. And 16b, similarly, five inter-unit wirings 4 extending from the indoor unit 2 are connected to the terminal board 17. Here, the flow of the refrigerant is used as an illustration. Generally, when the heating room of the air conditioner is operated, first, the four-way valve 13 is opened (cm), and the refrigerant system compressed by the compressor 10 passes through as shown by the dotted arrow. The four-way valve 13 receives the air from the indoor blower 21 for heat release through the indoor heat exchanger 20 of the indoor unit 2 through the distribution valve 16a and the inter-unit pipe 3a, and then passes through the inter-unit pipe 3b and the supply. The valve 16 b returns to the outdoor unit 1, passes the expansion valve 14, and uses the outdoor heat exchanger 11 to receive air from the outdoor blower 12 to absorb heat, and then faces the compressor 10 through the four-way valve 13 and the storage battery 15. Teleport to run the greenhouse cycle. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. On the other hand, when the cold room is running, the four-way valve 1J3 is first turned off. The refrigerant system compressed by the compressor 10 passes through the four-way valve 13 as shown by the solid line arrow. And sends it to the outdoor heat exchanger 11 and receives the blown air from the outdoor blower 12 to release heat, and then transmits it to the indoor heat exchanger 20 of the indoor unit 2 through the expansion valve 14, the supply valve 16b, and the inter-unit pipe 3b. Here, the air from the indoor blower 21 is used to absorb heat, return to the outdoor unit 1 through the inter-unit piping 3a and the distribution valve 16a, and then go to the compressor 10 through the four-way valve 13 and the storage battery 15 Conveying, applicable to China National Standard (CNS) A4 size (210X 297 mm) ^ 522209 A7 B7 8849pif.doc / 008 in 8 paper sizes V. Description of invention (L) The operation of the cold room cycle. (Please read the precautions on the back before filling in this page.) During the defrosting operation, although the same cooling room cycle is performed as in this cold room operation, the outdoor fan 12 and the indoor fan 21 are airless or weak. Operational. In addition, in the control operation system, first, the plug 27 is connected to a power outlet to prepare to receive power supply, and the remote control 28 is used to select one of a cold room operation and a warm room operation mode, and the desired temperature in the room is used as a remote control. The set temperature of the controller 28 is set, and a message to start operation is sent by the aforementioned operation switch. When the operation start mode is received at the receiving unit 26, the operation mode received by the receiving unit 26, if the operation mode of the indoor control device 23 is a cold room operation, the four-way valve 13 of the outdoor unit 1 will be Off (off), if it is in a warm room operation, the four-way valve 13 will be opened (on), and the indoor blower 21 will be turned on (on) to calculate the set temperature from the remote control 28 that received the signal from the receiving unit 26 And the temperature difference between the temperature detected by the indoor temperature sensor 22, and the temperature difference is used to turn on the outdoor blower 12, the power peak appliance 24, and perform air conditioning operation. When the above air-conditioning device is selected to operate in a warm room, the above-mentioned four-way valve should be closed to reverse the circulation of the refrigerant to perform a defrosting operation as a cold room cycle. When the defrosting operation is cancelled, the defrosting operation is cancelled, the four-way valve is opened, and the greenhouse operation is resumed. The detection method and judgment method of the defrost operation release of the present invention are described with reference to the flowchart in FIG. 2. When the defrost operation is started, four or nine paper sizes are applicable to the Chinese National Standard (CNS) Λ4 specification (210X). 297 mm) 522209 A7 B7 8849pif.doc / 008 V. Description of the invention ()) (Please read the notes on the back before filling this page) The valve 13 is closed (S1), and the refrigerant cycle is regarded as the cold room cycle. The compressor 10 of the outdoor unit 1 is operated (S2), and the timer a is operated (S3). This timer a is incorporated in the indoor control device 23 to count the time of the defrosting operation. Then, when the defrosting operation starts, the operating current of the compressor may not be stable due to the type of compressor. Ignore this situation and set the mask time of the current of the compressor 10 to detect the aforementioned timing. Whether device a has passed 3 seconds (S4). If it has not elapsed, confirm the elapsed time repeatedly. If it has elapsed, first detect the current 压缩机 I of the compressor 10 as the initial current 値 Is and save it in The first memory (S5) in the aforementioned indoor control device 23 # 1. It is printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, and then the current 値 I (S6) of the press 10 is detected, and the aforementioned is saved. The initial current 値 Is of the first memory is compared with the detected current 値 I of the compressor 10 (S7). If the current 値 I is less than the initial current 値 Is, it is regarded as the calculated current 値 Ik, and Stored in the second memory in the indoor control device 23 (S8) 'If the current 値 I and the initial current 値 Is are the same or greater than the initial current 値 Is, the initial' phase 値 Is is used as a calculation The current 値 Ik 'is stored in the second memory Inside (S9). Then, confirm whether the timer a has elapsed for 1 minute (S10). If it has not elapsed, return to step 6 'to repeat the control after step 6 above. If the timer a has elapsed for 1 minute, use step 8 or The calculation current 値 Ik stored in the second memory in step 9 and stored in the room in advance. 10 paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (210X 297 male thin). 522209 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 8849pif.doc / 008 V. Description of the invention (2) The constants F and K of the indoor control device 23 in the unit 2 are calculated (S 11), and this is used as the reference current 値 Id for defrost operation release, and stored in the aforementioned room The third body inside the control device 23 (S12). The constants F and K are the respective capacities of the compressors used, or numbers determined by the compressor manufacturers, and the above-mentioned numbers from 1 to 3 in the indoor control device 23 of the indoor unit 2 described above. There are plural numbers of memory other than the memory of the billion, for example, when the production is performed by the manufacturer, etc., one set of numbers is selected from each of the numbers. -Then, after this, the current 値 I of the compressor 10 during this defrosting operation is detected (S13), and it is determined whether it exceeds the previously obtained reference current 値 Id (S14). If the current 値 I of the compressor 10 is insufficient Then, continue the defrosting operation as usual, and return to step 13 to detect the current 値 I of the compressor 10 again, and then repeat the comparison with the reference current 値 Id. If the current 値 I of the compressor 10 exceeds, the reference current 値 Id, the initial current 値 Is, and the calculated current 値 Ik 淸 stored in the first to third memories in the indoor control device 23 are divided ( clear) (S15 ~ S17) _, reset timer a (S18), and then cancel the defrosting operation and return to the normal greenhouse operation. Here, the reference current (Id) of the defrost operation cancellation calculated using the (S11) calculation formula of the flowchart in FIG. 2 described above is exemplified as follows, and F is selected from the plurality of numbers preset in the indoor control device 23, respectively. And K, P4.78 'κ = 0 · 591. For example, when the power supply voltage is the rated voltage (the working voltage preset in the safe range when the product leaves the factory 値) Va [volts], the process from Figure 2 above At the end of the figure, the calculations saved to the above 2nd memory 値 Ik 11 This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) ---------— (Please read the precautions on the back first (Fill in this page again) • Order _ 522209 8849pifl.doc / 015 Λ7 B7 V. Description of the invention (~) '= 4.0+ (4.78-4.0) x 0.591 +4.46 (3) At this time, the reference current for the defrost operation is cancelled 値Id is 4.46 [Amps] = Idc. Then, the defrosting operation is cancelled at a time point tc at which the current 压缩机 of the compressor 10 exceeds the reference current 値 Idc. Then, the calculated current 値 Ik and the power supply voltage V finally stored in the second memory are obtained on the vertical axis, and the defrosting operation time t of the compressor is obtained on the horizontal axis. The above-mentioned power supply voltages Va to Vc, Finally, the calculation current 解除 la ~ Ic stored in the second memory during the defrosting operation is calculated using the calculation formula of the flowchart (S11) in FIG. 2 as the reference current defrosting operation release 値 I da ~ I dc system, as shown in Figure 3. When the power supply voltage V changes to the rising direction of I w, the aforementioned reference current 値 Id also becomes high, so there is no need to cancel the defrosting operation prematurely, so it can be achieved. Defrost operation without residual frost. On the contrary, the defrost operation will not be canceled too late, so it can prevent over-defrosting operation. [Effects of the Invention] From the above description, the present invention detects the current 压缩机 of the compressor during the defrosting operation, and uses this detected current 値 to obtain the reference current 解除 for defrost operation cancellation, and then obtains the aforementioned After the reference current 値, the drive current of the compressor is detected. When this drive current is larger than the reference current 値, the defrost operation is canceled, so there will be no problems such as residual frost or excessive defrost operation. Therefore, the proper defrost operation can be released. In addition, because there is no need to use an indoor temperature sensor and indoor heat exchange, this paper is applicable to the 0Θ family standard (CNS) A4 specification (210 x 297 public) * ^ installed! —Order --------- line (please read the precautions on the back and then balance this page) Wisdom of the Ministry of Economic Affairs «Industrial Bureau Consumer Consumption Cooperative Society Printing Bismuth 522209 V. Description of Invention (\ ') Device Temperature Sensing Device, or outdoor heat exchanger temperature sensor, and does not need to measure the power supply voltage, so it can be removed from a wide range of power supply voltage defrost operation. --------- ^ 9— (Please read the notes on the back before filling out this page) The paper size printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs applies the Chinese National Standard (CNS) A4 specification (210X 297 Mm)