A7 4 6 0 6 7 7 B7___ 五、發明說明（1 ) 【發明所屬之技術領域】 、 本發明係有關備有由商用交流電源所驅動之加熱手段 之加熱烹調器。 【發明所欲解決之問題】 加熱烹調器，係提供一種依據電流變流器等所檢測之 電流加熱手段等負荷之輸出量控制（包括通斷電控制）或 進行超電流保護控制者，又，除·此之外，也進行檢測電源 電壓之變動，藉此來控制加熱手段之輸出。然而，於習知 之電流檢測手段或電壓檢測手段，係其電流檢測或檢測電 壓，爲由於電路常數之經時性變化等發生變動爲不可避免 ，具有變成欲進行正確檢測動作爲困難之情形。 近年，例如微波爐，爲了提升烹調速度要求儘量提高 加熱輸出（高周波輸出）。此時，一般係使用家庭用配線 之插頭容量或斷路器容量爲被設定成1 5 A者，所以，微 波爐之最大額定電流，係不超過此範圍設定爲儘量大的狀 態。但是，實際上，微波爐之輸入電流，係由於電源電壓 之變動或周圍溫度之變化等有大小變動之情形，所以，將 上述最大額定電流對於1 5 A進行設定預估充分餘裕度之 數値（例如1 3 A左右），此係成爲阻礙提高烹調速度之 原因之一。爲了對應這種情形，透過上述電流檢測手段來 檢測輸入電流，在其輸入電流具有餘裕狀態時，考慮控制 加熱手段之輸出透過變流_器電路增大。然而，如上述由電 流檢測手段進行正確之電流檢測動作爲困難之情形下，歆 本紙張尺度適用中國國家標準（CNS>A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 裝--------訂---------線r-v. 經濟部智慧財產局員工消費合作社印製 -4 經濟部智慧財產局員工消費合作社印製 460677 A7 _B7 _ 五、發明說明（2 ) 進行這種控制係非常困難，具有不能充分提高加熱輸出之 情形發生。 本發明係鑑於上述情形所開發者，第1目的，係提供 一種可提高電流檢測手段之檢測精度，依據其檢測電流得 以將控制在安定狀態下進行之加熱烹調器，第2目的係提 供一種除了由電流檢測手段之檢測精度之外，也可提高從 商用交流電源之輸入電壓之檢測精度，依據其檢測電流及 檢測電壓得以將控制在安定狀態下進行之加熱烹調器。 【解決問題之手段】 爲了達成上述第1目的，申請專利範圍第1項之發明 ，係備有於由商用交流電源所驅動進行烹調動作之加熱手 段之加熱烹調器，其特徵爲備有；檢測流動於既定部位之 電流之電流檢測手段，與由此電流檢測手段檢測已知電平 之電流時之檢測値作爲基準電流値預先加以記憶所構成之 記憶手段，與將在烹調中上述電流檢測手段所檢測之電流 値依據記憶於上述記憶手段之基準電流値算出之電流演算 手段之構成。 若依據此構成，由於電路常數之經時變化等，於烹調 動作中即使電流檢測手段所檢測之電流値變成具有偏差之 狀態時，其電流檢測手段所檢測之電流値，因由記憶手段 預先記憶之基準電流値（亦即，由該電流檢測手段檢測已 知電平之電流時之檢測値）算出，所以，可提高由電流檢 測手段之檢測精度，可將依據其檢測電流値之控制在安定 -------裝--------訂---------線厂 (請先閱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（210 X 297公釐） -5- 4 60 67 7 A7 __B7 ___ 五、發明說明（3 ) 狀態下進行。 (請先閱讀背面之注意事項再填寫本頁) 此時，如申請專利範圍第2項之發明，將上述電流檢 測手段及記憶手段’可配置於同一基板或容易分開之複數 基板之構成。 若依據此構成，對於記憶手段，將記憶基準電流値之 作業，並非於加熱烹調.器之裝配製程時，例如可在基板製 造時之檢查製程時進行之益處，加熱烹調器之裝配製程時 或修理更換時進行之情形相較得以容易進行基準電流値之 記憶作業。又’電流檢測手段及記憶手段之一方或雙方發 生故障時，因只更換其等全體就可以，所以，於修理更換 時爲了記憶基準電壓之作業，亦即就不需要產生既定電流 裝置所須之麻煩作業，得以容易進行修理更換之作業。 經濟部智慧財產局員工消費合作社印製 申請專利範圍第3項之發明，因係裝設產生顯示商用 交流電源頻率之頻率訊號之訊號產生手段之後，在記憶手 段係將檢測基準電流値與該基準電流値時之電源頻率資訊 預先記憶之構成，將電流演算手段，於烹調動作中由上述 頻率訊號所示之電源頻率爲記憶於上述記憶手段之電源頻 率資訊相異時，將上述電流檢測手段所檢測之電流値依據 記憶於上述記憶手段之基準電流値算出時加入電源頻率之 相異進行校正之構成。 若依據此構成，即使與成爲加熱烹調器電源之商用交 流電源之頻率（5 0 Η z或6 0 Η z )相異時，經常可正 確地發揮由電流檢測手段之電流檢測機能及電流演算手段 之演算機能。 本紙張尺度適用t國國家標準（CNS)A4規格（210 X 297公釐） -6- 460677 A7 ___；__B7_ 五、發明說明（4 ) 申請專利範圍第4項之發明，係裝設產生顯示商用交 流電源之頻率之頻率訊號之訊號產生手段之外，在記憶手 段係將相異電源頻率之已知電平之電流分別由電流檢測手 段所檢測之各情形時之檢測値作爲對應於電源頻率資訊狀 態之基準電流値預先加以記憶之構成，將電流演算手段於 烹調動作中上述電流檢測手段所檢測之電流値記憶於上述 記憶手段之基準電流値之中依據對應於由上述頻率訊號所 示之電源頻率資訊之基準電流値加以算出之構成者。 若依據這種構成，與上述申請專利範.圍第3項之發明 相同，即使商用交流電源之頻率相異時，經常可正確地發 揮由電流檢測手段之電流檢測機能及電流演算手段之演算 機能。 申請專利範圍第4項之發明，係備有檢測放置電流檢 測手段之雰圍溫度之溫度檢測手段之外，將電流演算手段 ，把於烹調動作中電流檢測手段所檢測之電流値依據記憶 於記億手段之基準電流値算出時，由上述溫度檢測手段之 檢測溫度也加在一起之構成。 若依據此構成，由電流檢測手段所檢測之後由電流演 算手段所算出之檢測電流値，可防範爲起因於周圍雰圍溫 度變化變成不正確之事態於未然。 爲了達成上述第2目的，申請專利範圍第6項之發明 ，係於備有由商用交流電源所驅動進行烹調動作之加熱手 段之加熱烹調器，其特徵爲備有：檢測於既定部位所流動 之電流之電流檢測手段，與檢測來自上述商用交流電源之 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閲讀背面之注意事項再填寫本頁) ---—訂----I----線一 經濟部智慧財產局員工消費合作社印製 4 6067 7 ' A7 B7 五、發明說明（5 ) (請先閱讀背面之注意事項再填寫本頁} 輸入電壓之電壓檢測手段，與檢測出由上述電流檢測手段 檢測已知電平之電流時之檢測値及由上述電壓檢測手段檢 測出已知電平之輸入電壓時之檢測値分別成爲基準電流値 及基準電壓値預先記憶所成之記憶手段，與將烹調動作中 將上述電流檢測手段所檢測之電流値依據記憶於上述記憶 手段之基準電壓値算出之電流演算手段，與將在烹調動作 中上述電壓檢測手段所檢測之輸入電壓値依據記憶於上述 記憶手段所記憶之基準電壓値算出之電壓演算手段所構成 者。 . 經濟部智慧財產局員工消費合作社印製 若依據此構成，由於電路常數之經時變化等，即使於 烹調動作中電流檢測手段所檢測之電流値及電壓檢測手段 所檢測之輸入電壓値有偏差之情形下時，其等電流檢測手 段及電壓檢測手段所檢測之電流値及輸入電壓値爲因依據 預先記憶於記憶手段之基準電流値及基準電壓値（亦即由 該電流檢測手段及電壓檢測手段分別檢測已知電平之電流 及電壓時之各檢測値）所算出來，所以可提高由電流檢測 手段及電壓檢測手段之檢測精度，所以，可將依據其等檢 測電流及檢測電壓之控制可在安定狀態下進行。 此時，如申請專利範圍第7項之發明，將上述電流檢 測手段，電壓檢測手段及記憶手段，可配置在同一基板或 不容閉分開之複數基板之構_成。 若依據此構成，對於記憶手段將電流檢測手段及電壓 檢測手段分別記憶之作業，並非於加熱烹調器之裝配製程 時，具有例如可在基板製造時之檢查製程進行之益處，與 -8 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 46067? _____B7____ 五、發明說明（6 ) (請先閱讀背面之注意事項再填寫本頁) 加熱烹調器之裝配製程時或修理更換時進行之情形相較， 可容易地進行基準流値及基準電壓値之記憶作業。又，電 流檢測手段’電壓檢測手段及記憶手段之任一或2以上之 手段發生故障時，只將其等全部更換就可以，所以，於修 理更換時，爲了記憶基準電流値及基準電壓値之作業，亦 即，產生既定電流及電壓之裝置所需之麻煩作業就變成不 需要，可以容易進行其修理更換。 申請專利範圍第8項之發明，係產生裝設有顯示商用 交流電源頻率之頻率訊號之訊號產生手段之外，在記憶手 段係構成爲可預先記憶基準電流値及基準電壓値，與檢測 該基準電流値及基準電壓値時之電源頻率資訊，將電流演 算手段及電壓演算手段，於烹調動作中由上述頻率訊號所 顯示之電源頻率爲與記憶於上述記憶手段之電源頻率資訊 相巽時，將上述電流檢測手段及電壓檢測手段所檢測之電 流値及輸入電壓係成爲依據記憶於上述基準手段之基準電 流値及基準電壓値算出時加進電源頻率之不同進行校正之 構成。 經濟部智慧財產局員工消費合作社印製 若依據此構成，即使成爲加熱烹調器之電源之商用交 流電源之頻率（5 0Hz或6 OH z )爲相異時，將作用 由電流檢測手段之電流檢測機能及由電壓檢測手段之電壓 檢測機能，及電流演算手段及電壓演算手段之演算機能經 常正確地發揮作用。 申請專利範圍第9項之發明，係產生裝設有顯示商用 交流電源頻率之頻率訊號之訊號產生手段之外，在記憶手 -9- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） Α7 4 δ〇β77 ___Β7____ 五、發明說明（7 ) 段係構成爲將不同電源頻率之已知電平之電流及輸入電壓 分別由電流檢測手段及電壓檢測手段所檢測之各情形之檢 測値成爲對應於電源頻率資訊狀態之基準電流値及基準電 壓値預先加以記憶，將電流演算手段及電壓演算手段於烹 調動作中將上述電流檢測手段及電壓檢測手段所檢測之電 流値及輸入電壓値記憶於上述記憶手段所記憶之基準電流 値及基準電壓値之中對應於依據由上述頻率訊號所示電源 頻率資訊之基準電流値及基準電壓値算出之構成者。 若依據這種構成，與上述申請專利範圍第8項之發明 同樣，即使商用交流電源之頻率不同時，也可由電流檢測 手段之電流檢.測機能及由電壓檢測手段之電壓檢測手段之 電壓檢測機能，及由電流演算手段及電壓演算手段之演算 機能發揮正確作用。 申請專利範圍第1 〇項之發明，係備有檢測放置電流 檢測手段及電壓檢測手段雰圍溫度之溫度檢測手段之外， 構成爲將電流檢測手段及電壓檢測手段，於烹調動作中電 流檢測手段及電壓檢測手段所檢測之電流値及輸入電壓値 依據記憶於記憶手段之基準電流値及基準電壓値計算時， 也加入由上述溫度檢測手段之檢測溫度。 若依據此構成，由電流檢測手段所檢測之後由電流演 算手段算出之檢測電流値，及由電壓檢測手段所檢測之後 由電壓演算手段所算出之檢測電壓値，就可防範起因於周 圍雰圍溫度之變化變成不正確之事態於未然。 申請專利範圍第1 1項之發明，係在記憶手段沒有記 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------裂--------訂.---------線厂、 i ; (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -10- A7 460677 ___B7__ 五、發明說明（8 ) 憶基準電流値及基準電壓値之至少一方之狀態下，禁止烹 調動作之執行或特定負荷動作之構成者。若據此構成’成 爲電流檢測及電壓檢測基準之値’若由於零件不良等而沒 有記憶時，因禁止有烹調動作之執行或特定負荷之動作’ 所以，可防止其等陷入於異常動作狀態於未然。 申請專利範圍第1 2項之發明，係在記憶基準沒有記 憶基準電流値及基準電壓値之至少一方時之狀態下，構成 爲進行既定之告知動作者。若據此構成，成爲電流檢測及 電壓基準之數値，由於零件不良等而沒有記憶時，因進行 既定之告知動作，所以可防範應對進行異常烹調動作事態 於未然。 申請專利範圍第1 3項之發明，係依據電流演算手段 及電壓演算手段所算出之電流値及輸入電壓値，在全體輸 入電流不超過上限値範圍備有將輸入電力控制成一定之控 制手段之構成者。若依據此構成’依據由電流演算手段及 電壓演算手段所算出之正確電流値及輸入電壓値控制成全 體輸入電流不超過上限値，所以，即使全體輸入電流受到 制約之狀態下也可實現烹調速度之提升。 申請專利範圍第1 4項之發明，係對於電壓演算手段 ，因應加熱手段或其他負荷之ON · OFF狀態加進電壓 檢測手段所檢測之輸入電壓加以校正之機能之構成者。若 依據此構成，例如，於烹調動作中加熱手段以外之負荷被 動作停止而輸入電壓變動時，也可將最終得到之檢測電壓 値成爲正確之數値。 本紙張尺度適用中國國家標準（CNS>A4規格（210 X 297公釐） (請先閱讀背面之注音？事項再填寫本頁) .'裝 i ! I ! 訂 i I ! II -線 i 經濟部智慧財產局員工消費合作社印製 -11 - 4SQ677 A7 B7 五、發明說明（9 ) 申請專利範圍第1 5項之發明，係將記憶手段構成爲 即使於電源關斷狀態下也可保持記憶內容之非揮發性者。 若依據此構成，記憶於記憶手段之基準電流値或基準電壓 値消失之虞幾乎都沒有，所以，檢測電流値或檢測電壓値 之算出動作之可靠性會變髙。 申請專利範圍第1 6項之發明，係將電流檢測手段構 成爲檢測從商用交流電源之輸入電流値或特定負荷流動之 電流者。若依據此構成，加熱烹調器全體之輸入電流或各 個負荷流動之輸入電流可正確地檢測。 【發明之實施形態】 茲依據圖面將本發明適用於微波爐之一實施例說明如 下。 首先，於表示微波爐之槪略外觀之第5圖，爐箱1係 成爲前面開口之矩形箱狀，在其內部形成有前面開口之矩 形容器狀之烹調室2 ，並且，在前面部可轉動地裝著有開 閉烹調室2開口部所用之爐門3。 在爐箱1內，鄰接於烹調室2側方形成有機械室（沒 有圖示），在機械室內，收容有後述之磁控管（magnetron )(相當於加熱手段；於第1圖標示符號3 0表示）及驅 動其所用之電源裝置（於第1圖標示符號2 9表示）等。 於爐箱1之機械室之前面側位置設有操作面板4 ’在此操 作面板4配設有烹調開始用之起動開關5 ’對應於複數種 類之烹調菜單之自動烹調開關6 ，設定烹調時間所用之時 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12 - (請先閱讀背面之注音2事項再填寫本頁) ---------訂---------線一 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 460677 A7 ______B7__ 五、發明說明（1〇 ) 間轉盤7，顯示烹調資訊或時間資訊等所用之L E D面板 8。在烹調室2內之頂板部裝設有爐烹調及烤架烹調用之 加熱器9。在烹調室2內底部，設有圓形狀之迴轉盤1 〇 。此迴轉盤1 〇，係例如在鋼板之導電材料接面施加琺瑯 處理者，尤其微波爐烹調時，在迴轉盤1 〇上載置有圓形 狀之烹調皿（沒有圖示）之構成。按，此烹調皿係由玻璃 或陶瓷等由微波透過材料所形成。 於第1圖槪略地表示微波爐之電氣性構成，以下將就 此說明之。 於第1圖，在一對電源線1 1 ，1 2間，從商用交流 電源1 3透過保險絲1 4，雜訊濾波器1 5及熱動開關 1 6供給既定頻率（5 0 Η z或6 0 Η z )之交流電壓。 在電源線1 1 ，1 2間，連接有降壓變壓器1 7之一次繞 線1 7 a ，並且，風扇馬達1 8及繼電器開關1 9之串聯 電路。按，上述風扇馬達1 8，係配設於上述沒有圖示之 機械室內者，在其驅動狀態下運轉冷卻機械室內之電氣零 件所用之風扇（沒有圖示）。 另一方面之電源線1 1係將爐門3之關閉時會Ο N之 爐門開關2 0及2 1經由串聯連接於電源線1 1 a ，他方 之電源線1 2，係經由總繼電器2 2連接於電源線1 2 a 。又’在上述爐門開關2 0及2 1之共通連接點與電源線 1 2間’連接有作爲短路開關發揮機能之爐門開關2 3 ， 此爐門開關2 3係成爲開啓爐門3時變成Ο N之構成。 於電源線1 1 a ，1 2 a間分別連接有照明烹調室2 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- ^ 裝--------tr---------線 Γν (請先閱讀背面之注意事項再填寫本頁) 460677 A7 B7 五、發明說明（11) (請先閱讀背面之注意事項再填寫本頁) 內所用之爐內燈2 4，繼電器開關2 5及迴轉盤1 0.驅動 用之馬達2 6之串聯電路，繼電器開關2 7及上述加熱器 9之串聯電路。 在電源線1 1 a ，1 2 b間經由繼電器開關2 8連接 之電源裝置2 9，係用來給與磁控管3 0諧振用電源者， 雖然不具體地表示，但是係備有整流平滑電路，變流器電 路，升壓變壓器，高壓電容器，高壓二極體等之周知構成 者。 在電源線1 2設有電流變流器3 1，此電流變流器 3 1之二次側輸出係成爲給與電流檢測電路3 2 (相當於 電流檢測手段）。又，在上述降壓變壓器1 7之二次繞線 1 7 b連接有恒電壓電源電路3 3，電壓檢測電路3 4 ( 相當於電壓檢測手段），頻率訊號發生電路3 5 (相當於 訊號產生手段）。這些電流變流器3 1，電流檢測電路 3 2，恒電壓電源電路3 3，電壓檢測電路3 4，頻率訊 號發生電路3 5係連同後述之非揮發性記憶體3 8 (相當 經濟部智慧財產局員工消費合作社印製 於記憶手段）由同一基板或銲錫等加以連結（連接）配置 成容易不能分開之複數基板之構成。 並且，上述電流檢測電路3 2，恒電壓電源電路3 3 ，電壓檢測電路3 4，頻率訊號發生電路3 5係具體上成 爲例如第2圖所示之電路構成。 亦即，電流檢測電路3 2係備有將電流變流器3 1之 二次側輸出進行全波整流所用之整流電路3 1 a ，與連接 於此整流電路3 1 a之輸出端之充電用之電阻3 1 b及電 -14- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 460677 A7 Β7 五、發明說明（12) (請先閱讀背面之注意事項再填寫本頁) 容器3 1 c之串聯電路（積分電路），與和此串聯電路並 聯連接之放電用之電阻3 1 d之構成。因此，於電流檢測 電路3 2 ，係在電容器3 1 c雨端，會出現因應從商用交 流電源1 3之輸入電流値之電壓電平之電流檢測訊號 I 1 η者，其電流檢測訊號I i η係成爲給與控制單元 3 6 (相當於電流演算手段，電壓演算手段，控制手段） 之構成。 恒電壓電源電路3 3係備有透過二次繞線1 7 b所給 與之交流電流進行全波整流之中央分接暇（center tap )形 式之整流電路3 3 a ，與將其整流輸出成爲平滑之電容器 3 3 b ，與接受其平滑輸出之恒電壓電路3 3 c ，與爲了 其恒電壓輸出之安定化所用之電容器3 3 d ’將其輸出成 爲控制用電源給與控制單元3 6 ’並且’成爲透過電源端 子+ V c c給與其他電路元件之構成。 經濟部智慧財產局員工消費合作社印製 電壓檢測電路3 4係成爲備有；在二次繞線1 7 b之 兩端連接陰極之二極體3 4 a及3 4 b，與這些二極體 3 4 a及3 4 b之陽極與連接於上述電源端子+V c c間 之電阻3 4 c，與和此電阻3 4 c並聯連接之較大電阻値 之電阻3 4 d及3 4 e之串聯電路’與和電阻3 4 d並聯 連接之電容器3 4 f之構成。於構成爲如此之電壓檢測電 路3 4，係在電阻3 4 d及3 4 e之共通連接點出現因應 從商用交流電源1 3之輸入電壓値之電壓電平之電壓檢測 訊號V i η者，其電壓檢測訊號V i η係給與控制單元 -15- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） Α7 4 δ〇677 —__Β7__ 五、發明說明（13) (請先閱讀背面之注意事項再填寫本頁) 頻率訊號發生電路3 5係備有成爲射極爲連接於上述 電源端子+Vc c並且集極爲經由電阻3 5 a連接於接地 端子之ρ η p型電晶體3 5 b，與此電晶體3 5 b之基座 與連接於二次繞線1 7 b —端之電阻3 5 c ，在電晶體之 射極間裝電阻之偏壓用之電阻3 5 ci之構成。於構成爲如 此之頻率訊號產生電路3 5 ，係從電晶體3 5 b之集極產 生因應商用交流電源1 3之頻率周期之脈衝狀頻率訊號 P s者，其脈衝訊號p s係成爲表示商用交流電源1 3之 頻率之訊號給與控制單元3 6。 返回到第1圖，溫度檢測電路3 7 (相當於溫度檢測 手段）係配置成檢測放置電流檢測電路3 2及電壓檢測手 段3 4之雰圍溫度例如包括熱敏電阻器（thermistor )所構 成，將因應其檢測溫度之電壓電平之溫度檢測訊號V t給 與控制單元3 6。 於非揮發性記憶體3 8，係在製品出貨前之階段，與 後述之基準電流値及基準電壓値爲對應於電源頻率資訊之 狀態所記憶，構成爲可在控制單元3 6間進行資料之授受 〇 經濟部智慧財產局員工消費合作社印製 在控制單元3 6，除了上述電流檢測訊號I i η，電 壓檢測訊號V i η，脈衝訊號P s，溫度檢測訊號V t之 外，輸入有來自包括上述起動開關5，自動烹調開關6， 時間轉轉盤7等之操作手段3 9之操作訊號。 並且，控制單元3 6係構成依據上述輸入訊號，非揮 發性記憶體3 8之記憶資料及預先所設定之程式等，總繼 -16- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 4^〇67y B7___ 五、發明說明（14) 電器22 ，繼電器開關19 ，25 ，27，28之〇Ν· 〇 F F控制，上述L E D面板8或沒有圖示包括電子蜂鳴 (請先閱讀背面之注意事項再填寫本頁) 器等之顯示’告知手段4 0之控制，電源裝置2 9內之沒 有圖示進行變流器電路之動作控制之構成。按，繼電器開 關 19 ，22 ，25 ，27 ，28 之 ON.OFF 控制， 係將其等之繼電器線圈19.a ，22 a ，25 a ，27a ’ 2 8 a之通斷電透過繼電器驅動電路4 1加以控制進行 0 經濟部智慧財產局員工消費合作社印製 按，控制單元3 6係尤其在由磁控管3 0之微波烹調 時’由來自電流檢測電路3 2之電流檢測訊號I i η所示 輸入電流値及依據由來自電壓檢測電路3 4之電壓檢測訊 號V 1 η所示之輸入電壓値將磁控管3 〇之輸出透過變流 器電路（沒有圖示）增減之控制成如後述地進行。此時， 控制單元3 6係將由來自電流檢測電路3 2之電流檢測訊 號I i η所示之輸入電流値及由來自電壓檢測電路3 4之 電壓檢測訊號V i η所示輸入電壓値，依據來自非揮發性 .記憶體3 8之記憶資料，頻率訊號發生電路3 5之頻率訊 號P s及來自溫度檢測電路3 7之溫度檢測訊號ν t邊校 正算出者’以下，就有關其算出動作之構成說明之。 如上述’於非揮發性記憶體3 8，係在製品出貨前之 階段將基準電流値及基準電壓値與電源頻率資訊所對應之 狀態下所記憶者。 此時’基準電流値之記憶作業係如下地進行。首先， 至少將電流變流器3 i，電流檢測電路3 2及非揮發性記 17 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） 460677 Α7 Β7 五、發明說明（15) (請先閱讀背面之注音？事項再填寫本頁) 憶體3 8裝套於基板之基板裝配狀態下，在電流變流器 3 1之一次側流動已知電平之交流電流。具體上爲例如施 加9 8 . 5 V / 6 Ο Η z之狀態下，將1 4 . 3 A之電流 流動於電阻負荷者，在此時將電流檢測電路3 2所檢測之 電流値（由電流檢測訊號I i η之電壓電平表示），作爲 量子化狀態之基準電流値記憶於非揮發性記憶體3 8。又 ，與此同時，將電源頻率爲表示6 Ο Η ζ之電源頻率資訊 與該基準電流値對應記憶之。 經濟部智慧財產局員工消費合作社印製 基準電壓値之記憶作業係如下進行。首先，至少將降 壓變壓器1 7，恒電壓電源電路3 3，電壓檢測電路3 4 ，頻率訊號發生電路3 5及非揮發性記憶體3 8裝套於基 板之基板裝配狀態下，在降壓變壓器1 7之一次側施加已 知電平之交流電壓並且使其動作既定之負荷。具體上，爲 例如施加9 8 . 5 V / 6 Ο Η ζ之交流電壓，在此狀態下 使繼電器開關19，22，25 ，28 (當磁控管30動 作時同時變成動作狀態之負荷）動作者，在此時將電壓檢 測電路器3 4所檢測之電壓値（由電壓檢測訊號V i η之 電壓電平表示），作爲量子化狀態之基準電壓値記憶於非 揮發性記憶體3 8。又，與此同時，將表示電源頻率爲 6 0 Η ζ之電源頻率資訊，與該基準電壓値對應記憶之。 按，如上述欲使繼電器開關1 9，2 2，2 5，2 8動作 時，於微波烹調時，因應這些負荷動作而增加降壓變壓器 1 7之負荷電流，係爲了對應於其輸出電壓降低現象所需 要者。然而，控制單元3 6係於微波烹調動作中，透過電 -18- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 460677 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（16 ) 流檢測電路3 2所檢測之輸入電流有餘裕狀態時，及透過 電壓檢測電路3 4所檢測之輸入電壓（電源電壓）降低之 狀態時，將磁控管3 0之輸出透過變流器電路增大到既定 電平之控制’依據上述檢測輸入電流及檢測輸入電壓進行 ’使全體之輸入電流爲不超過1 5 A (對應於家庭用配線 之插座容量或斷路器容量）範圍內將磁控管3 〇之輸出（ 進而爲烹調速度）提高到最大限度。 此情形時’若依據本實施例，控制單元3 6係將來自 之電流檢測電路3 2之電流檢測訊號I i n所示之電流値 依據記憶於非揮發性記憶體3 8之基準電流値（由電流檢 測電路3 2檢測已知電平之電流時之電流値）算出，並且 ，將從電壓檢測電路3 4之電壓檢測訊號V i η所示輸入 電壓値依據記憶於非揮發性記憶體3 8之基準電壓値（由 電壓檢測電路3 4檢測已知電平之電壓時之電壓値）進行 算出之控制。因此，由於電路常數之經時變化等，即使電 流檢測電路3 2所檢測之輸入電流値及電壓檢測電路3 4 所檢測之輸入電壓値變成偏差之狀況時，也由如上述之算 出控制，將提高由電流檢測電路3 2及電壓檢測電路3 4 之檢測精度，依據其等檢測電流及檢測電壓之控制，亦即 ，全體之輸入電流爲不超過屬於上限値之1 5 Α範圍（例 如，14·6Α±〇·2A範圍）將磁控管30之輸出提 高到最大限之控制可在安定狀態下進行。總之，即使全體 之輸入電流受到制約之狀況下也可實現烹調速度之提高。 然而，對於電流檢測訊號I i η之輸出所需電流變流 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -19 - ------- I------訂---------線 < (請先閱讀背面之注意事項再填寫本頁) 460677 A7 ___ B7__ 五、發明說明（17) (請先閱讀背面之注意事項再填寫本頁) 器3 1 ’係其一次側之輸入電流與二次側之輸出電壓之關 係，爲如第3圖所示，也會變成因應電源頻率之相異之狀 態之情形。又，即使於電壓檢測訊號I i η之輸出所需之 降壓變壓器1 7，其一次側之輸入電壓與二次側之輸出電 壓之關係爲與上述同樣會變成因應電源頻率相異之狀態。 爲了對應這種情形，控制單元3 6係依據來自頻率訊 號發生電路3 5之頻率訊號P s來判斷電源頻率爲究竟 5 0 Η ζ，6 0 Η ζ之任一，並且，其判斷結果爲與記憶 於非揮發性記憶體3 8之電源頻率資訊（在此實施例爲「 6 0 Η ζ」之資訊）不同時，就將上述電流檢測訊號 I i η所示之輸入電流値及由上述電壓檢測訊號V i η所 示輸入電壓値依據記憶於該非揮發性記憶體3 8之基準電 流値及基準電壓値算出時，加進進行其電源頻率之不同之 校正（加進第3圖所示電流變流器3 1之一次側輸入電流 與二次側輸出電壓之關係，及於降壓變壓器1 7之一次側 輸入電壓與二次側輸出電壓之關係之校正）。 經濟部智慧財產局員工消費合作社印製 此結果，即使成爲微波爐電源之商用交流電源1 3之 頻率（5 0 Η ζ或6 0 Η ζ )不同之情形，由電流檢測電 路3 2之電流檢測機能及電壓檢測電路3 4之電壓檢測機 能，及由電流檢測電路3 2之檢測電流及檢測電壓之演算 機能可經常使其正確地動作。 另一方面，於電流變流器3 1 ，如第4圖所示，係因 應周圍溫度之高低會發生輸出變動之情形。爲了應付這種 情形，控制單元3 6係依據來自溫度檢測電路3 7之溫度 -20- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 46〇677 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（18 ) 檢測訊號V t ，由上述電流檢測訊號I i η所示之輸入電 流値及由上述電壓檢測訊號V i η所示輸入電壓値依據記 憶於非揮發性記憶體3 8之基準電流値及基準電壓値算出 時’進行加進由其溫度檢測訊號V t所示之溫度之校正（ 加進於第4圖所示電流變流器3 1輸出之溫度特性之校正 )。 此結果，將依據來自電流檢測電路3 2之電流檢測訊 號I i η所示電流値依據記憶於非揮發性記憶體3 8之基 準電流値算出所得到之檢測電流値，爲起因於周圍之雰圍 溫度之變化變成不正確之事態可防範於未然，將如上述之 磁控管3 0之輸出控制成可更加安定狀態下進行。 於本實施例，因將上述電流檢測電路3 2，電壓檢測 電路3 4及非揮發性記憶體3 8，同一基板或配置成容易 不能分開之複數基板之構成，所以，對於非揮發性記憶體 3 8將基準電流値及基準電壓値分別加以記憶之作業，並 非於微波爐之裝配製程時，例如可在基板製造時之檢查製 程進行之益處。此結果，微波爐之裝配製程時或於修理更 換時進行之情形相較，可容易進行基準電流値及基準電壓 値之記憶作業。又，電流檢測電路3 2，電壓檢測電路 3 4及非揮發性記憶體3 8之任一或2以上之手段發生故 障時因只更換其等全體就可以，所以，於修理更換時，爲 了記憶基準電流値及基準電壓値所需之作業，亦即需要準 備產生既定電流及電壓之裝置之麻煩作業就變成不需要， 得以容易進行其修理更換。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -21 - I —^ 11111 Λ/I · I--1---—訂！ I —線 r (請先閱讀背面之注音？事項再填寫本頁) 4 ^ ο 6 7 7 Α7 __Β7__ 五、發明說明（19) 又，上述基準電流値及基準電壓値，係即使於電源關 斷狀態也保持記憶內容之非揮發性記憶體3 8所記憶之構 成，暫且記憶之基準電流値或基準電壓値沒有消失之虞， 結果來說，由電流檢測電路3 2所檢測之電流値或由電壓 檢測電路3 4所檢測之電壓値之算出動作之可靠性會變高 〇 按，本發明爲並非限於上述之實施例，而可如下地變 形或放大。 對於控制單元3 6，在非揮發性記憶體3 8沒有記憶 ’至少一方之狀態時，也可以加進禁止微波烹調動作之執行 或特定負荷（例如磁控管3 0 )動作之控制機能。若依據 此構成，成爲電流檢測及電壓檢測之基準數値，由於零件 不良等沒有記憶時，因可禁止微波烹調動作之執行或特定 負荷之動作，所以具有可防範其等陷於異常動作狀態於末 然之益處。 對於控制單元3 6，在非揮發性記憶體3 8沒有記憶 至少一方之狀態時，也可追加例如透過L E D面板8進行 既定告知動作之控制機能。若依據此構成，成爲電流檢測 發現壓檢測基準之値，爲由於零件不良等沒有記憶時，因 進行既定之告知動作，所以可因應防範進行異常烹調動作 之事態於末然。 對於控制單元3 6 ，也可以加進因應磁控管3 0或其 他負荷（馬達2 6等）之ON · OFF狀態來校正電壓檢 測電路3 4所檢測之輸入電壓値機能之構成。若依據此構 .紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐)-22 - (請先閲讀背面之注意事項再填寫本頁) --------訂---------線一 經濟部智慧財產局員工消費合作杜印製 46〇677 Α7 Β7 五、發明說明（20) 成，例如，在烹調動作中磁控管3 0以外之負荷被停止動 作而輸入電壓變動時’可將最終所獲得之檢測電壓値變成 正確者。 於上述實施例，對於非揮發性記憶體3 8，頻率爲將 依據6 0 Η z之已知電平之電流及電壓得到之基準電流値 及基準電壓値，電源頻率係成爲表示6 〇 η ζ之電源頻率 資訊一起記憶之構成，但是，除此之外，電源頻率爲將電 源頻率爲5 0 Η ζ之已知電平之電流及電壓分別由電流檢 測電路3 2及電壓檢測電路3 4檢測之各情形之檢測値， 也可以將電源頻率爲表示5 0 Η ζ之電源頻率資訊所對應 狀態之基準電流値及基準電壓値記憶之構成。此時，電流 檢測手段6，係將電流檢測電路3 2及電壓檢測電路3 4 所檢測之電流値及電壓値從記憶於非揮發性記憶體3 8之 基準電流値及基準電壓値之中，將依據對應於由從頻率訊 號發生電路3 5之頻率訊號P s所示之電源頻率資訊之基 準電流値及基準電壓値進行校正。 由電流檢測電路3 2成爲檢測微波爐全體之輸入電流 之構成，但是也可以成爲檢測流動於特定負荷（例如磁控 管30)之電流之構成。 爲了控制磁控管3 0之輸出，構成爲利用來自電流檢 測電路3 2之電流檢測訊號I i η及來自電壓檢測電路 3 4之電壓檢測訊號V i η雙邊，但是，至少有時可進行 利用電流檢測訊號I i η之控制，所以，電壓檢測電路 3 4係視其需要裝設即可。又，頻率訊號發生電路3 5或 (請先閱讀背面之注音？事項再填寫本頁) ---— — — — — 訂-----I I--線一 經濟部智慧財產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（210 X 297公釐） -23- 經濟部智慧財產局員工消費合作社印製 6〇677 A7 ____B7___ 五、發明說明（21) 溫度檢測電路3 7也可視其需婪裝設就可以。 雖然將基準電流値及基準電壓値之記憶作業，在基板 裝配之階段進行之構成，但是也可以在最終製品完成之階 段進行。但是，此情形時，必須加進從製品之電源插頭到 降壓變壓器17之一次側之路徑之電壓降之施加電源電壓 〇 於上述實施例，雖然適用於具有加熱器烹調機能之微 波爐’但是並非限定於此，例如也可適用於微波烹調專用 機。於上述實施例，作爲加熱手段例示了磁控管3 0，但 是也可以爲加熱器，又，也可以爲感應加熱線圈或鹵燈加 熱器等其他之加熱手段。 【發明效果】 由以上就可淸楚，於本發明之加熱烹調器，將在烹調 動作中，電流檢測手段所檢測之電流値，成爲由檢測該電 流檢測手段依據已知電平之電流時之檢測値算出之構成， 所以可提高由電流檢測手段之檢測精度，可將依據其檢測 電流之控制在安定狀態下進行。又，除了如上述檢測電流 之演算機能，在烹調動作中將電壓檢測手段所檢測之電壓 値，依據由該電壓檢測手段檢測已知電平之電壓時之電壓 時之檢測値來算出之構成，所以，除了電流檢測手段之檢 測精度之外，也可提高從商用交流電源之輸入電壓之檢測 精度，可將依據其等檢測電流及檢測電壓之控制在安定之 狀態下進行。 .„ L,l\裝 訂---------線，i (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（210 X 297公釐） -24- 4^〇677 A7 B7 五、發明說明（22) 圖式之簡單說明 {請先閱讀背面之注意事項再填寫本頁) 第1圖係表示本發明之一實施例之電氣性構成圖。 第2圖係要部之電路構·成圖。 第3圖係表示電流變流器之一次側輸入電流與二次側 輸出電壓之關係之特性圖。 第4圖係電流變流器之輸出之溫度特性圖。 第5圖係表示全體構成之斜視圖。 【符號之說明】 9 加熱器， 13 商用交流電源， 17 降壓變壓器， 2 6 馬達， 29 電源裝置， 3 0 磁控管（加熱手段）， 31 電流變流器， 3 2 電流檢測電路（電流檢測手段）， 3 3 恒電壓電源電路， 經濟部智慧財產局員工消費合作社印制^ 3 4 電壓檢測電路（電壓檢測手段）， 3 5 頻率訊號發生電路（訊號產生電路）， 3 6 控制單元（電流演算手段，電壓演算手段，控 制手段）， 3 7 溫度檢測電路（溫度檢測手段）， 3 8 非揮發性記憶體（記憶手段）。 -25- 本纸張尺度適用中國國家標準（CNS〉A4規格（210 X 297公1 )A7 4 6 0 6 7 7 B7___ V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a heating cooker equipped with a heating means driven by a commercial AC power source. [Problems to be Solved by the Invention] The heating cooker is to provide a kind of output control (including on-off control) or over-current protection control based on the load detected by the current heating means such as a current converter and the like. In addition to this, the power supply voltage is also detected to control the output of the heating means. However, in the conventional current detection means or voltage detection means, the current detection or detection voltage is unavoidable due to changes in the circuit constant over time, etc., and it may become difficult to perform a correct detection operation. In recent years, microwave ovens have been required to increase the heating output (high frequency output) as much as possible in order to increase the cooking speed. At this time, the plug capacity or circuit breaker capacity of the household wiring is generally set to 15 A. Therefore, the maximum rated current of the microwave oven should be set as large as possible within this range. However, in reality, the input current of a microwave oven varies due to changes in power supply voltage or ambient temperature. Therefore, set the maximum rated current to 15 A to estimate the number of sufficient margins ( For example, about 1 3 A), this is one of the reasons hindering the improvement of cooking speed. In order to cope with this situation, the input current is detected through the above-mentioned current detection means. When the input current has a margin state, it is considered that the output of the heating means is controlled to increase through the converter circuit. However, if it is difficult to carry out the correct current detection by the current detection means as described above, the paper size applies the Chinese national standard (CNS > A4 specification (210 X 297 mm)) (Please read the precautions on the back before filling in (This page) -------- Order --------- line rv. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -4 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 460677 A7 _B7 _ V. Description of the invention (2) It is very difficult to carry out such a control system, and it may happen that the heating output cannot be sufficiently increased. The present invention is developed in view of the above situation, and the first object is to provide a detection method that can improve the current detection method. The accuracy, based on its detection current, can be used to control the heating cooker in a stable state. The second purpose is to provide a detection accuracy that can also improve the input voltage from a commercial AC power source in addition to the detection accuracy by the current detection method. Based on the detection current and detection voltage, the heating cooker can be controlled in a stable state. [Means for Solving the Problem] In order to achieve the first objective above The invention of item 1 in the scope of patent application is a heating cooker equipped with a heating means for cooking operation driven by a commercial AC power source, which is characterized by having a current detecting means for detecting a current flowing through a predetermined position, and The detection when the current detection means detects a current of a known level 値 as a reference current 之 a memory means formed by memorizing in advance, and the current detected by the current detection means in cooking in accordance with the memory means described above According to this structure, the current calculation means for calculating the reference current 。. According to this structure, due to the change of the circuit constant over time, etc., even if the current 値 detected by the current detection means becomes a state of deviation during cooking operation, the current detection means The detected current 算出 is calculated by the reference current 记忆 previously memorized by the memory means (that is, the detection 时 when the current detection means detects a current at a known level). Therefore, the detection accuracy by the current detection means can be improved. Will control the stability based on its detection current------------------------------- Order (Please read the precautions on the back before filling this page) This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -5- 4 60 67 7 A7 __B7 ___ V. Description of the invention (3) (Please read the precautions on the back before filling in this page) At this time, if you apply for the invention in item 2 of the patent scope, the above current detection means and memory means can be arranged on the same substrate or on multiple substrates that can be easily separated. According to this structure, the operation of memorizing the reference current to the memory means is not used in the heating and cooking device assembly process, such as the benefits of the inspection process during substrate manufacturing, and the assembly process of the heating cooker. It is easier to memorize the reference current when compared with the situation performed at the time of repair or replacement. Also, if one or both of the current detection means and the memory means fails, it is only necessary to replace all of them. Therefore, in order to memorize the reference voltage during repair and replacement, that is, it is not necessary to generate a predetermined current device. Troublesome work, easy repair and replacement work. The Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the invention in the scope of patent application No. 3, because a signal generating means for generating a frequency signal showing the frequency of a commercial AC power supply was installed, and the memory means was to measure the reference current and the reference. The current frequency power frequency information is memorized in advance. The current calculation means uses the power frequency indicated by the above-mentioned frequency signal during cooking operation to be different from the power frequency information stored in the above-mentioned memory means. The detected current is based on the reference current memorized in the above-mentioned memory means, and is corrected by adding a difference in power frequency when calculating. According to this configuration, even when the frequency (50 0 Η z or 60 Η z) of a commercial AC power source serving as a heating cooker power source is different, the current detection function and current calculation means by the current detection means can often be accurately performed. Computing function. This paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) -6- 460677 A7 ___; __B7_ V. Description of the invention (4) The invention in the 4th scope of the patent application is installed to produce a commercial display In addition to the signal generation means of the frequency signal of the AC power frequency, the memory means is a detection when the current of a known level of a different power frequency is detected by the current detection means in each case, corresponding to the power frequency information. The reference current of the state 记忆 is memorized in advance, and the current calculated by the current calculation means in the cooking operation is detected by the current 値, which is stored in the reference current of the 依据 memory means 値 according to the power source indicated by the frequency signal. A component that calculates the reference current 値 of the frequency information. If this structure is used, it is the same as the invention in item 3 of the above-mentioned patent application. Even when the frequency of the commercial AC power source is different, the current detection function of the current detection means and the calculation function of the current calculation means can often be correctly exerted. . The invention in item 4 of the scope of patent application, in addition to the temperature detection means for detecting the ambient temperature of the current detection means, uses current calculation means to memorize the current detected by the current detection means during cooking operations. When the reference current 値 of the means is calculated, the detection temperature of the temperature detecting means is also added together. According to this structure, the detection current 値 calculated by the current calculation means after being detected by the current detection means can prevent the situation from becoming incorrect due to temperature changes in the surrounding atmosphere. In order to achieve the above-mentioned second object, the invention in the sixth scope of the patent application is a heating cooker equipped with a heating means driven by a commercial AC power source for cooking action, and is characterized by: detecting the The current detection method of the current and the paper size from the above-mentioned commercial AC power supply are applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page) ----- Order ---- I ---- printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6067 7 'A7 B7 V. Invention Description (5) (Please read the precautions on the back before filling this page} Input voltage The voltage detection means and the detection when a current of a known level is detected by the current detection means, and the detection when an input voltage of a known level is detected by the voltage detection means, respectively, become the reference current and the reference, respectively. The voltage means is stored in advance, and the current detected by the current detection means during cooking is calculated based on the reference voltage stored in the memory means. The current calculation means and the voltage calculation means calculated from the input voltage detected by the voltage detection means in the cooking operation based on the reference voltage memorized in the memory means described above. Consumption by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs If the cooperative prints according to this structure, due to the change of the circuit constant over time, etc., even if there is a deviation between the current detected by the current detection means during the cooking operation and the input voltage detected by the voltage detection means, the current is equal. The current 输入 and the input voltage 检测 detected by the detection means and the voltage detection means are based on the reference current 値 and the reference voltage 记忆 which are previously stored in the memory means (that is, the current detection means and the voltage detection means respectively detect known levels The detection of current and voltage 値) are calculated, so the detection accuracy by current detection means and voltage detection means can be improved. Therefore, the control based on the detection current and voltage can be performed in a stable state. When applying for the invention in item 7 of the patent scope, Segments, voltage detection means and memory means can be arranged on the same substrate or multiple substrates that cannot be separated. If this configuration is adopted, the current detection means and voltage detection means are memorized separately by the memory means, not by heating. The assembly process of the cooking device has the benefits of, for example, the inspection process during the manufacture of the substrate, and -8-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 46067? _____B7____ V. Description of the invention (6) (Please read the precautions on the back before filling out this page) Compared with the situation during the assembly process or repair and replacement of the heating cooker, the reference current and reference voltage can be easily memorized. In addition, when any one or more of the current detection means, the voltage detection means, and the storage means fails, it is only necessary to replace all of them. Therefore, in order to remember the reference current 値 and the reference voltage 修理 during repair and replacement, Work, that is, troublesome work required for a device that generates a given current and voltage becomes unnecessary and can be easily performed Repair replacement. The invention in the eighth aspect of the patent application is in addition to the signal generating means installed with a frequency signal showing the frequency of a commercial AC power source. The memory means is configured to memorize the reference current 値 and the reference voltage 预先 in advance, and detect the reference. Power frequency information at the time of current 値 and reference voltage 将, when the current calculation means and voltage calculation means are used to indicate that the power frequency displayed by the above-mentioned frequency signal in cooking operation is different from the power frequency information memorized in the above-mentioned memory means, The current 输入 and the input voltage detected by the current detection means and the voltage detection means are configured to be corrected based on the difference in the frequency of the power source which is added to the reference current 値 and the reference voltage 记忆 stored in the reference means. If printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs according to this structure, even if the frequency (50 Hz or 6 OH z) of the commercial AC power source that becomes the power source of the heating cooker is different, the current detection by the current detection means will be used. Functions and functions of voltage detection by voltage detection means, and calculation functions of current calculation means and voltage calculation means often function correctly. The invention in item 9 of the scope of patent application is a signal generating means equipped with a frequency signal showing the frequency of a commercial AC power supply. In addition to the memory hand-9- this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Α7 4 δ〇β77 ___ Β7 ____ 5. The description of the invention (7) is the situation in which the current and input voltage of known levels of different power frequencies are detected by the current detection means and the voltage detection means, respectively. The detection 値 becomes a reference current 値 and a reference voltage 状态 corresponding to the state of the power frequency information, and is memorized in advance. The current calculation means and voltage calculation means use the current 烹调 and input voltage detected by the current detection means and voltage detection means in the cooking operation.値 is memorized in the reference current 値 and reference voltage 记忆 memorized by the above-mentioned memory means, and corresponds to a component calculated based on the reference current 値 and reference voltage 电源 of the power supply frequency information indicated by the above-mentioned frequency signal. If this structure is used, as with the invention in the eighth aspect of the above-mentioned patent application, even when the frequency of the commercial AC power source is different, it can be detected by the current detection means. The test function and the voltage detection by the voltage detection means Function, and the calculation function by current calculation method and voltage calculation method can play the correct role. The invention in the scope of patent application No. 10 is a temperature detection method for detecting the ambient temperature of the current detection method and the voltage detection method. The current detection method and the voltage detection method are used in the cooking operation. When the current 输入 and the input voltage 检测 detected by the voltage detection means are calculated based on the reference current 値 and the reference voltage 记忆 stored in the memory means, the detection temperature by the above-mentioned temperature detection means is also added. According to this structure, the detection current 値 calculated by the current calculation means after being detected by the current detection means and the detection voltage 値 calculated by the voltage calculation means after being detected by the voltage detection means can prevent the temperature caused by the ambient temperature. Change becomes incorrect before it happens. The invention of item 11 in the scope of patent application is not recorded in the memory means. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). --Order .--------- line factory, i; (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -10- A7 460677 ___B7__ V. Invention Explanation (8) In the state of recalling at least one of the reference current 値 and the reference voltage ，, it is forbidden to perform the cooking operation or the constituent of the specific load operation. If this constitutes' the benchmark for current detection and voltage detection ', if there is no memory due to defective parts, etc., the execution of cooking operation or the operation of a specific load is prohibited', so that they can be prevented from falling into an abnormal operation state. Not yet. The invention in item 12 of the scope of patent application is constituted to perform a predetermined notification action in a state in which at least one of the reference current 値 and the reference voltage 记忆 is not memorized. According to this structure, it becomes the number of current detection and voltage reference. If there is no memory due to defective parts, etc., a predetermined notification operation is performed, so that it is possible to prevent the occurrence of abnormal cooking operation. The invention in item 13 of the scope of patent application is based on the current 値 and input voltage 依据 calculated by the current calculation method and the voltage calculation method, and the total input current does not exceed the upper limit. The range is provided with a method to control the input power to a certain control method. Constructor. If this structure is used, 'the correct current 値 and input voltage 由 calculated by the current calculation method and the voltage calculation method are controlled so that the entire input current does not exceed the upper limit 値, so that the cooking speed can be achieved even when the entire input current is restricted Of promotion. The invention of item 14 in the scope of the patent application is a constituent of the voltage calculation method, which is a function of correcting the input voltage detected by the voltage detection means in response to the ON or OFF state of the heating means or other loads. According to this configuration, for example, when a load other than the heating means is stopped during the cooking operation and the input voltage fluctuates, the detection voltage 値 finally obtained may be a correct number 値. This paper size applies to Chinese National Standards (CNS > A4 specifications (210 X 297 mm) (Please read the note on the back? Matters before filling out this page). 'Install i! I! Order i I! II-Line i Ministry of Economy Printed by the Intellectual Property Bureau's Consumer Cooperatives -11-4SQ677 A7 B7 V. Description of the Invention (9) The invention in the 15th scope of the patent application is composed of memory means that can keep the memory contents even when the power is off Non-volatile. With this structure, there is almost no possibility that the reference current 値 or reference voltage 记忆 stored in the memory means will disappear, so the reliability of the calculation operation of the detection current 値 or the detection voltage 髙 will become 髙. Apply for a patent The invention according to the 16th item is a current detection means configured to detect a current flowing from a commercial AC power source or a current flowing through a specific load. According to this structure, the entire input current of the heating cooker or the input flowing through each load The current can be accurately detected. [Embodiments of the invention] An embodiment of the present invention applicable to a microwave oven will be described below with reference to the drawings. First, the microwave Figure 5 shows the outline of the appearance. The oven box 1 has a rectangular box shape with a front opening, and a rectangular container-like cooking chamber 2 with a front opening is formed in the oven box. Furnace door 3 for the opening of the chamber 2. Inside the oven box 1, a machine room (not shown) is formed adjacent to the cooking room 2 side, and a magnetron (corresponding to a magnetron) described later (equivalent to Heating means; indicated by 30 in the first icon) and the power supply device (indicated by 2 9 in the first icon) used to drive it, etc. An operation panel 4 ′ is provided on the front side of the machine room of the furnace box 1 Here, the operation panel 4 is provided with a start switch 5 for cooking start, and an automatic cooking switch 6 corresponding to a plurality of types of cooking menus. When setting the cooking time, the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12-(Please read the note 2 on the back before filling out this page) --------- Order --------- Employee Cooperatives of Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 677 A7 ______B7__ 5. Description of the invention (10) The turntable 7 displays the LED panel 8 used for cooking information or time information, etc. A heater 9 for oven cooking and grill cooking is installed on the top plate part of the cooking room 2. The bottom of the cooking chamber 2 is provided with a circular rotary disk 10. This rotary disk 10 is, for example, a person who applies enamel treatment to the interface of a conductive material of a steel plate, especially when cooking in a microwave oven. The structure of a cooking dish (not shown) with a circular shape. According to this, the cooking dish is made of glass or ceramics and made of a microwave-transmitting material. The electrical structure of the microwave oven is shown in the first figure, which will be explained below. Of it. In Figure 1, a pair of power lines 1 1 and 12 are supplied with a predetermined frequency (50 0 Η z or 6) from a commercial AC power supply 1 3 through a fuse 14, a noise filter 15 and a thermal switch 16. 0 Η z) AC voltage. A primary winding 17a of a step-down transformer 17 is connected between the power lines 11 and 12, and a series circuit of a fan motor 18 and a relay switch 19 is connected. According to the above, the above-mentioned fan motor 18 is a fan (not shown) for cooling electric components in the machine room under the driving state when the fan motor 18 is installed in the machine room (not shown). On the other hand, the power line 1 1 is the furnace door switch 2 0 and 2 which will be 0 N when the door 3 is closed, and is connected to the power line 1 1 a in series, and the other power line 1 2 is connected to the main relay 2 2 Connect to the power cord 1 2 a. A furnace door switch 2 3 functioning as a short-circuit switch is connected between the common connection point of the furnace door switches 20 and 21 and the power line 12. The furnace door switch 2 3 is used to open the furnace door 3. It has a composition of 0 N. 1 1 a and 1 2 a are connected to the lighting cooking room 2 The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -13- ^ installed -------- tr --------- line Γν (Please read the notes on the back before filling this page) 460677 A7 B7 V. Description of the invention (11) (Please read the notes on the back before filling this page) The series circuit of the furnace lamp 24, the relay switch 25 and the turntable 10, the driving motor 26, the relay switch 27 and the series circuit of the heater 9. The power supply device 2 9 connected between the power lines 1 1 a and 1 2 b via the relay switch 2 8 is used to supply the magnetron 30 with resonance power. Although not specifically shown, it has rectification smoothing. Well-known constituents of circuits, converter circuits, step-up transformers, high-voltage capacitors, high-voltage diodes, and the like. A current transformer 31 is provided on the power supply line 12, and the secondary output of the current transformer 31 is provided to a current detection circuit 3 2 (equivalent to a current detection means). A constant-voltage power supply circuit 3 3, a voltage detection circuit 3 4 (corresponding to a voltage detection means), and a frequency signal generating circuit 3 5 (corresponding to a signal generation means) are connected to the secondary winding 17 b of the step-down transformer 17 above. ). These current converters 31, current detection circuit 3 2, constant voltage power supply circuit 3 3, voltage detection circuit 3 4, frequency signal generating circuit 3 5 are together with the nonvolatile memory 3 8 described later (equivalent to the intellectual property of the Ministry of Economic Affairs) Printed on the memory means by the Consumer Cooperative of the Bureau) is composed of a plurality of substrates which are connected (connected) by the same substrate or solder etc. so that they cannot be separated easily. The current detection circuit 32, the constant voltage power supply circuit 3 3, the voltage detection circuit 34, and the frequency signal generation circuit 35 are specifically configured as circuits shown in FIG. 2 for example. That is, the current detection circuit 3 2 is provided with a rectification circuit 3 1 a for performing full-wave rectification on the secondary-side output of the current converter 3 1, and for charging the output terminal connected to the rectification circuit 3 1 a Resistance 3 1 b and electrical -14- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 460677 A7 B7 V. Description of the invention (12) (Please read the precautions on the back before filling in this Page) The series circuit (integral circuit) of the container 3 1 c is composed of a resistor 3 1 d for discharge connected in parallel with this series circuit. Therefore, in the current detection circuit 3 2, which is at the rain end of the capacitor 3 1 c, a current detection signal I 1 η corresponding to the voltage level of the input current 値 from the commercial AC power supply 13 will appear, and its current detection signal I i η is a configuration that gives the control unit 36 (equivalent to current calculation means, voltage calculation means, and control means). The constant-voltage power supply circuit 3 3 is provided with a rectifier circuit 3 3 a in the form of a center tap that performs full-wave rectification through the AC current given by the secondary winding 1 7 b, and the rectified output becomes Smoothing capacitor 3 3 b, constant voltage circuit 3 3 c that receives its smooth output, and capacitor 3 3 d for stabilization of constant voltage output, and its output becomes control power supply to control unit 3 6 ′ In addition, it becomes a structure that is given to other circuit elements through the power terminal + V cc. The voltage detection circuit 3 4 is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The cathodes are connected to the diodes 3 4 a and 3 4 b at both ends of the secondary winding 1 7 b. Series of the anode of 3 4 a and 3 4 b and the resistor 3 4 c connected between the above power terminal + V cc, and the larger resistor 値 connected in parallel with this resistor 3 4 c. 3 4 d and 3 4 e in series. The circuit 'is constituted by a capacitor 3 4 f connected in parallel with the resistor 3 4 d. In the voltage detection circuit 3 4 configured in this way, a voltage detection signal V i η corresponding to the voltage level of the input voltage 从 from the commercial AC power supply 1 3 appears at a common connection point of the resistors 3 4 d and 3 4 e. The voltage detection signal V i η is given to the control unit. -15- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Α7 4 δ〇677 —__ Β7__ V. Description of the invention (13) (please (Please read the precautions on the back before filling in this page.) The frequency signal generating circuit 3 5 is equipped with a ρ η p-type transistor that has an emitter connected to the above power terminal + Vc c and a collector connected to the ground terminal via a resistor 3 5 a. 3 5 b, the base of this transistor 3 5 b and the resistor 3 5 c connected to the secondary winding 1 7 b-terminal, a resistor for biasing the resistor between the emitter of the transistor 3 5 ci Of the composition. In the frequency signal generating circuit 3 5 configured in this way, the pulse-shaped frequency signal P s corresponding to the frequency cycle of the commercial AC power source 13 is generated from the collector of the transistor 3 5 b, and the pulse signal ps is used to indicate commercial AC. The frequency signal of the power source 13 is given to the control unit 36. Returning to FIG. 1, the temperature detection circuit 37 (corresponding to the temperature detection means) is configured to detect the ambient temperature of the placement current detection circuit 32 and the voltage detection means 34. For example, the temperature includes a thermistor. The temperature detection signal V t corresponding to the voltage level of the detected temperature is given to the control unit 36. In the non-volatile memory 38, it is a stage before the product is shipped, and the reference current 値 and reference voltage 后 described later are memorized in a state corresponding to the power frequency information, and are structured so that data can be performed between the control units 36 Accepted by the Intellectual Property Bureau of the Ministry of Economic Affairs, the employee consumer cooperative is printed on the control unit 36, in addition to the above-mentioned current detection signal I i η, voltage detection signal V i η, pulse signal P s, and temperature detection signal V t. Operation signals from the operation means 39 including the start switch 5, automatic cooking switch 6, time dial 7, and the like. In addition, the control unit 36 is composed of the above-mentioned input signals, the non-volatile memory 38 memory data and the preset program, etc., and the total size is -16- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 4 ^ 〇67y B7___ 5. Description of the invention (14) Electrical 22, relay switch 19, 25, 27, 28 〇N · 〇FF control, the above LED panel 8 or no picture includes electronic buzzer (Please read the precautions on the back before filling out this page) The display of the device, such as the notification means 40, is not shown in the power supply device 29, and the operation control of the converter circuit is not shown. Press, the ON.OFF control of the relay switches 19, 22, 25, 27, 28 is to turn on and off the relay coils 19.a, 22a, 25a, 27a '2 8a through the relay drive circuit 4 1 Controlled 0 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the control unit 3 6 is especially used by the magnetron 30 for microwave cooking by the current detection signal I i η from the current detection circuit 32 The input current is shown and the input voltage shown by the voltage detection signal V 1 η from the voltage detection circuit 34 is used to increase or decrease the output of the magnetron 3 through the converter circuit (not shown) as follows This will be described later. At this time, the control unit 36 takes the input current 所示 shown by the current detection signal I i η from the current detection circuit 32 and the input voltage 所示 shown by the voltage detection signal V i η from the voltage detection circuit 34, according to The memory data from the non-volatile memory 38, the frequency signal P s of the frequency signal generating circuit 35 and the temperature detection signal ν from the temperature detection circuit 37 are calibrated and calculated below. The composition is explained. As described above, in the non-volatile memory 38, the reference current 値 and reference voltage 値 are stored in a state corresponding to the power frequency information at the stage before the product is shipped. At this time, the memory operation of the "reference current" is performed as follows. First, at least the current transformer 3 i, the current detection circuit 3 2 and the non-volatile memory 17 are required. The paper size applies to the Chinese National Standard (CNS) A4 specification (210 x 297 mm) 460677 Α7 Β7 V. Description of the invention (15 ) (Please read the note on the back? Matters before filling out this page.) In the state where the body 3 8 is mounted on the substrate, an AC current of a known level flows on the primary side of the current converter 31. Specifically, for example, when a current of 14.3 V is applied to a resistive load in a state where 9 8. 5 V / 6 Ο Η z is applied, at this time, the current detected by the current detection circuit 3 2 (by the current The voltage level of the detection signal I i η) is stored in the non-volatile memory 38 as the reference current of the quantized state. Also, at the same time, the power supply frequency information representing 6 Ο ζ is stored in correspondence with the reference current 値. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the reference voltage 値 memory operation is performed as follows. First, at least the step-down transformer 17, the constant voltage power supply circuit 3 3, the voltage detection circuit 3 4, the frequency signal generating circuit 35, and the non-volatile memory 3 8 are mounted on the substrate in the state of the substrate assembly, and the voltage is reduced. An AC voltage of a known level is applied to the primary side of the transformer 17 and a predetermined load is caused to operate. Specifically, for example, an AC voltage of 9 8. 5 V / 6 〇 ζ ζ is applied, and in this state, the relay switches 19, 22, 25, and 28 (loads that simultaneously become the operating state when the magnetron 30 operates) are operated. Or, at this time, the voltage 値 (indicated by the voltage level of the voltage detection signal V i η) detected by the voltage detection circuit 34 is stored in the non-volatile memory 38 as the reference voltage 量子 of the quantized state. At the same time, power frequency information indicating that the power frequency is 60 0 ζ is stored in correspondence with the reference voltage 値. According to the above, when the relay switches 19, 2 2, 2, 5, 28 are to be operated as described above, during microwave cooking, the load current of the step-down transformer 17 is increased in response to these load operations in order to reduce the output voltage corresponding to the Those who need it. However, the control unit 36 is in a microwave cooking operation. The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) 460677 A7 B7. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. V. Description of the invention (16) When the input current detected by the current detection circuit 32 has a margin state, and when the input voltage (power supply voltage) detected by the voltage detection circuit 34 is reduced, the magnetron 30 The output is controlled to increase to a predetermined level through the converter circuit, according to the above-mentioned detection input current and detection input voltage, so that the entire input current does not exceed 15 A (corresponding to the socket capacity or circuit breaker capacity of household wiring). ) Range to maximize the output of the magnetron 3 (and thus the cooking speed). In this case, 'if according to this embodiment, the control unit 36 takes the current indicated by the current detection signal I in from the current detection circuit 32, according to the reference current stored in the non-volatile memory 3 8' (from The current detection circuit 3 2 calculates the current when it detects a current of a known level 算出), and calculates the input voltage indicated by the voltage detection signal V i η from the voltage detection circuit 3 4 based on the non-volatile memory 3 8 The reference voltage 値 (the voltage 时 when the voltage detection circuit 34 detects a voltage of a known level) is calculated and controlled. Therefore, due to changes in the circuit constant over time, even if the input current 値 detected by the current detection circuit 32 and the input voltage 检测 detected by the voltage detection circuit 3 4 become deviated, it is calculated and controlled as described above. Improving the detection accuracy by the current detection circuit 32 and the voltage detection circuit 34, according to the control of the detection current and the detection voltage, that is, the entire input current does not exceed the range of 1 5 A (for example, 14) which belongs to the upper limit 値· 6A ± 0 · 2A range) The control to increase the output of the magnetron 30 to the maximum limit can be performed in a stable state. In short, the cooking speed can be increased even when the entire input current is restricted. However, for the current conversion required for the output of the current detection signal I i η, the paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) -19-------- I ---- --Order --------- line < (Please read the notes on the back before filling this page) 460677 A7 ___ B7__ V. Description of the invention (17) (Please read the notes on the back before filling this page) Device 3 1 'It is the input current of its primary side The relationship with the output voltage on the secondary side is as shown in Figure 3, and it will also change depending on the state of the power supply frequency. In addition, even in the step-down transformer 17 required for the output of the voltage detection signal I i η, the relationship between the input voltage on the primary side and the output voltage on the secondary side is the same as described above, and it will become a different state depending on the frequency of the power supply. In order to cope with this situation, the control unit 36 determines whether the power frequency is any of 5 0 Η ζ, 60 0 Η ζ according to the frequency signal P s from the frequency signal generating circuit 35, and the judgment result is When the power frequency information stored in the non-volatile memory 3 8 (in this embodiment, “60 0 6 ζ”) is different, the input current shown by the current detection signal I i η and the voltage When the input voltage 所示 indicated by the detection signal V i η is calculated based on the reference current 値 and reference voltage 记忆 stored in the non-volatile memory 38, it is added for correction of the difference in its power frequency (add the current shown in Figure 3) Correction of the relationship between the primary input current and the secondary output voltage of the converter 31 and the relationship between the primary input voltage and the secondary output voltage of the step-down transformer 17). The result is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Even if the frequency (50 0 Η ζ or 60 0 Η ζ) of the commercial AC power supply 13 of the microwave oven power supply is different, the current detection function of the current detection circuit 32 And the voltage detection function of the voltage detection circuit 34, and the calculation function of the current detection and voltage detection by the current detection circuit 32 can always make it operate correctly. On the other hand, as shown in FIG. 4, the current converter 3 1 may vary in output depending on the ambient temperature. In order to cope with this situation, the control unit 36 is based on the temperature from the temperature detection circuit 37. -20- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 46〇677 A7 B7 Wisdom of the Ministry of Economy Printed by the employee's consumer cooperative of the Property Bureau V. Description of the invention (18) The detection signal V t, the input current indicated by the above current detection signal I i η and the input voltage indicated by the above voltage detection signal V i η are based on the memory in When calculating the reference current 値 and reference voltage of the non-volatile memory 3 8, the temperature correction signal indicated by the temperature detection signal V t is added (added to the current converter 3 1 output shown in FIG. 4). Correction of temperature characteristics). As a result, the detected current 値 is calculated based on the current indicated by the current detection signal I i η from the current detection circuit 32 based on the reference current 记忆 stored in the nonvolatile memory 38, which is caused by the surrounding atmosphere. Changing the temperature into an incorrect situation can be prevented beforehand, and the output of the magnetron 30 as described above can be controlled in a more stable state. In this embodiment, the current detection circuit 32, the voltage detection circuit 34, and the non-volatile memory 38 are formed on the same substrate or a plurality of substrates that are easily arranged and cannot be separated. Therefore, for the non-volatile memory, 38 The operation of memorizing the reference current 値 and the reference voltage 値 separately is not a benefit in the process of assembling a microwave oven, for example, during an inspection process during substrate manufacturing. As a result, compared with the case where the microwave oven is assembled or repaired, the reference current 容易 and the reference voltage 记忆 can be easily memorized. In addition, when any one or more of the current detection circuit 32, the voltage detection circuit 34, and the non-volatile memory 3 8 fail, it is only necessary to replace all of them. Therefore, when repairing and replacing, it is necessary to remember The work required for the reference current 値 and the reference voltage ，, that is, the troublesome work of preparing a device for generating a predetermined current and voltage becomes unnecessary, and its repair and replacement can be easily performed. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -21-I — ^ 11111 Λ / I · I--1 ---— Order! I — line r (please read the note on the back? Matters before filling out this page) 4 ^ ο 6 7 7 Α7 __Β7__ 5. Description of the invention (19) In addition, the above reference current 基准 and reference voltage 系 are even when the power is turned off. The state also retains the memory structure of the nonvolatile memory 38. For the time being, the reference current 値 or reference voltage 记忆 memorized may not disappear. As a result, the current detected by the current detection circuit 32 or 由The reliability of the calculation operation of the voltage 値 detected by the voltage detection circuit 34 will become higher. Pressing the present invention is not limited to the above-mentioned embodiment, but may be modified or enlarged as follows. For the control unit 36, when the non-volatile memory 38 does not have a memory state of at least one, a control function for prohibiting the execution of the microwave cooking operation or the operation of a specific load (for example, the magnetron 30) may be added. According to this structure, it becomes the reference number for current detection and voltage detection. When there is no memory such as defective parts, the microwave cooking operation can be prohibited or the operation of a specific load can be prevented. Therefore, it can prevent it from falling into an abnormal operation state at the end. Of course the benefits. For the control unit 36, when the non-volatile memory 38 does not memorize at least one state, a control function for performing a predetermined notification operation through the LED panel 8 may be added, for example. According to this structure, it becomes the standard for current detection and pressure detection. When there is no memory due to defective parts, etc., the predetermined notification operation is performed. Therefore, it is possible to prevent the abnormal cooking operation from happening. For the control unit 36, the ON / OFF state of the magnetron 30 or other load (motor 26, etc.) can be added to correct the input voltage / function detected by the voltage detection circuit 34. If you follow this structure, the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -22-(Please read the precautions on the back before filling this page) -------- Order-- ------- Consumption cooperation between employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Du printed 46〇677 Α7 Β7 V. Description of the invention (20) For example, during the cooking operation, the load other than the magnetron 30 is stopped When the input voltage changes during operation, the detected voltage 値 finally obtained can be changed to the correct one. In the above embodiment, for the non-volatile memory 38, the frequency is a reference current 値 and a reference voltage 得到 obtained from a current and voltage of a known level of 60 Η z, and the power supply frequency is expressed as 〇η ζ The power frequency information is memorized together, but in addition, the power frequency is a current and voltage at a known level of the power frequency of 50 0 ζ are detected by the current detection circuit 32 and the voltage detection circuit 34 respectively. The detection of each situation 情形 can also be composed of a reference current 値 and a reference voltage 値 which indicate the state corresponding to the power frequency information of 50 Η ζ. At this time, the current detection means 6 is to store the current 値 and voltage 检测 detected by the current detection circuit 32 and the voltage detection circuit 3 4 from the reference current 値 and reference voltage 记忆 stored in the non-volatile memory 38. The correction will be based on the reference current 値 and reference voltage 对应 corresponding to the power frequency information shown by the frequency signal P s from the frequency signal generating circuit 35. The current detection circuit 32 is configured to detect the input current of the entire microwave oven, but may be configured to detect the current flowing through a specific load (for example, the magnetron 30). In order to control the output of the magnetron 30, it is configured to use both the current detection signal I i η from the current detection circuit 32 and the voltage detection signal V i η from the voltage detection circuit 34, but it can be used at least in some cases. The current detection signal I i η is controlled. Therefore, the voltage detection circuit 34 can be installed as needed. In addition, the frequency signal generating circuit 3 5 or (Please read the note on the back? Matters and then fill out this page) ----- — — — — Order ----- I I--line I Intellectual Property Bureau of the Ministry of Economic Affairs employee consumption The paper size printed by the cooperative is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -23- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 6677 A7 ____B7___ V. Description of the invention (21) Temperature detection circuit 3 7 can also be installed as required. Although the memory operation of the reference current 値 and the reference voltage 构成 is performed at the stage of substrate assembly, it may be performed at the stage of final product completion. However, in this case, it is necessary to add the applied power supply voltage of the voltage drop from the power plug of the product to the primary side of the step-down transformer 17. In the above embodiment, although it is applicable to a microwave oven with a heater cooking function, it is not It is limited to this, For example, it can also apply to a microwave cooking-dedicated machine. In the above-mentioned embodiment, the magnetron 30 is exemplified as the heating means, but it may be a heater, or other heating means such as an induction heating coil or a halogen lamp heater. [Effects of the Invention] From the above, it can be understood that the heating cooker of the present invention will detect the current detected by the current detection means during the cooking operation to become the current when the current detection means detects the current according to a known level. The structure of detection and calculation can improve the detection accuracy by the current detection means, and the control based on the detection current can be performed in a stable state. In addition to the calculation function for detecting the current as described above, in the cooking operation, the voltage 値 detected by the voltage detection means is calculated based on the detection 时 when the voltage detection means detects a voltage at a known level, Therefore, in addition to the detection accuracy of the current detection means, the detection accuracy of the input voltage from the commercial AC power supply can also be improved, and the control based on the detection current and the detection voltage can be performed in a stable state. . „L, l \ Binding -------- line, i (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ） -24- 4 ^ 〇677 A7 B7 V. Description of the invention (22) Brief description of the drawings {Please read the notes on the back before filling this page) Figure 1 shows the electrical structure of an embodiment of the present invention Figure 2. Figure 2 is the circuit configuration and diagram of the main part. Figure 3 is a characteristic diagram showing the relationship between the primary-side input current and the secondary-side output voltage of the current converter. Figure 4 is the characteristic of the current converter. Output temperature characteristic diagram. Figure 5 is a perspective view of the overall structure. [Explanation of symbols] 9 heaters, 13 commercial AC power supplies, 17 step-down transformers, 2 6 motors, 29 power supply units, 3 0 magnetrons ( Heating means), 31 current converter, 3 2 current detection circuit (current detection means), 3 3 constant voltage power supply circuit, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ 3 4 voltage detection circuit (voltage detection means), 3 5 frequency signal generating circuit (signal generating circuit), 3 6 control unit (current calculation method, voltage calculation method, control method), 3 7 temperature detection circuit (temperature detection method), 3 8 non-volatile memory (memory method). -25- This paper scale applies to China Standard (CNS> A4 specification (210 X 297 male 1)