200919891 九、發明說明 【發明所屬之技術領域】 本發明是關於具電阻的基板型溫度熔絲，作爲 二次電池保護用電路板的具電阻的溫度熔絲有用者 【先前技術】 將二次電池，例如鋰離子電池使用作爲攜帶 器的電源的時候，將二次電池胞與保護電路收容 ，該保護電路是具備過充電防止開關，過放電防 又具備在此些開關無法對應時非復位地遮斷電路 第5圖是表示對於二次電池的保護電路的一例 具電阻的溫度熔絲Ao連接於過充電防止開關用 )與過放電防止開關用FET ( Μ )之間。 在該具電阻的溫度熔絲中，對於串聯的溶絲元 η、m熱性地結合例如膜電阻的電阻r成爲以該電 電發熱可溶斷兩熔絲元件部分η、m，而將該電阻 兩熔絲元件部分η、m電性地並聯地連接。S是IC ，充電時，可檢測出過充電俾發生過電防止訊號而 充電防止用FET，而在放電時，可檢測出過放電俜 放電防止訊號而扳斷過放電防止用FET。在此些 法應付時，則導通訊號從1C電路S發訊至電晶體 用電晶體Tr的導通，以二次電池E或充電源D作 來通電發熱具電阻的溫度熔絲，而以該發生熱來焰 裝載於 ^電子機 •組件內 .開關， f熔絲部 丨子，將 FET ( N ;件部分 :阻的通 r對於 控制部 ί扳斷過 ί發生過 FET無 Tr，利 ;爲電源 =斷熔絲 -4- 200919891 元件n、m而遮斷二次電池E與負荷（充電時或充電源D )之間。 習知’作爲具電阻的溫度熔絲，如第6 ( a )圖所示 地’在絕緣基板的單面設置兩側膜電極a、b與中間膜電 極2，橫跨此些膜電極a、b，2連接熔絲元件3，於該熔 絲元件塗佈熔劑，如第6 ( b )圖所示地，將利用通孔導 通於上述膜電極a、b的兩側膜電極a，、b，設於絕緣基板 的另一面，並將帶狀引線導體A、B接合於此些膜電極a， 、b’。又’將前後的膜電極41、42設於同上基板另一面 ’利用通孔24來導通此些前後的膜電極的一方42與上述 中間膜電極2，而將膜電阻r設於膜電極41、4 2間，又 將帶狀引線導體C接合於前後膜電極的另一方4 1，如圖6 (e )圖所不地，提案著以絕緣密封物5覆蓋基板單面者 (專利文獻1 )。 〔專利文獻1〕特開2003-217416號公報 【發明內容】 在上述的二次電池保護電路中，表示於第5圖的充電 時’將充電源側熔絲元件部分η比二次電池側熔絲元件部 分m還時間上優先地熔斷，俾先切斷功率大的充電源d 較安全。然而’在上述的具電阻的溫度熔絲中，使得膜電 阻r熱性地同等地設於兩熔絲元件部分η、m，而很難確 實地保證該優先性熔斷。 如上述地’在上述具電阻的溫度溶絲中，保護電路異 -5- 200919891 常時的膜電阻r的發生熱被傳達到熔絲元件3而利用熔斷 熔絲元件3會作動’因此若膜電阻r的上述發生熱量（電 力）過小，則不會作動而對運轉電力有下降，又在施加於 膜電阻r的電力爲大電力時，若熔絲元件未被熔斷，則因 其大電力而膜電阻有爆裂破壞的危險性。 然而，在習知的具電阻的溫度熔絲中，可動作的運轉 電力的下限相當高’又，熔絲元件的可熔斷的運轉電力的 上限相當低，而整體上也有運轉電力範圍狹窄的不方便。 本發明的目的，是在基板的單面上具有兩側膜電極a 、b及中間膜電極’在此些膜電極全面設有熔絲元件而具 有膜電極a與中間膜電極間的熔絲元件部分m及膜電極b 與中間膜電極間的熔絲兀件部分η，藉由通電發熱俾將上 述熔絲元件部分η、m被熔斷的膜電阻具有於基板另一面 的具電阻的溫度熔絲中’對於另一方的熔絲元件部分確實 地優先地熔斷一方的熔絲元件部分。 又’作成在廣泛的運轉電力範圍內以具電阻的溫度熔 絲可保護二次電池。 本發明的申請專利範圍第1項的一種具電阻的基板型 溫度熔絲’屬於在基板的單面上具有兩側膜電極a、b及 中間膜電極’在此些膜電極全面設有熔絲元件而具有膜電 極a與中間膜電極間的熔絲元件部分m及膜電極b與中 間膜電極間的熔絲元件部分η，藉由通電發熱俾將上述熔 絲元件部分η、m被熔斷的膜電阻具有於基板另一面的具 電阻的溫度熔絲，其特徵爲：熔絲元件部分η與膜電阻之 -6- 200919891 距離及熔絲元件部分m與膜電阻之距離作成不相同。 本發明的申請專利範圍第2項的一種具電阻的基板型 溫度熔絲，屬於在基板的單面上具有兩側膜電極a、b及 中間膜電極，在此些膜電極全面設有熔絲元件而具有膜電 極a與中間膜電極間的熔絲元件部分m及膜電極b與中 間膜電極間的熔絲元件部分η，藉由通電發熱俾將上述熔 絲元件部分η、m被溶斷的膜電阻具有於基板另一面的具 電阻的溫度熔絲，其特徵爲：溶絲元件部分η的長度與熔 絲元件部分m的長度作成不相同。 本發明的申請專利範圍第3項的一種具電阻的基板型 溫度熔絲，屬於在基板的單面上具有兩側膜電極a、b及 中間膜電極，在此些膜電極全面設有熔絲元件而具有膜電 極a與中間膜電極間的熔絲元件部分m及膜電極b與中 間膜電極間的熔絲元件部分η，在基板另一面藉由通電發 熱俾將上述熔絲元件部分η、m被熔斷的電阻具有於基板 另一面的具電阻的溫度熔絲，其特徵爲：基板另一面的電 阻爲藉由排設於基板另一面兩側的電阻値不相同的複數個 膜電阻所構成。 申請專利範圍第4項的一種二次電池保護用電路，其 特徵爲：申請專利範圍第1項所述的具電阻的基板型溫度 熔絲的熔絲元件部分η與膜電阻之距離比熔絲元件部分m 與膜電阻之距離還要短，將具電阻的基板型溫度熔絲的熔 絲元件串聯地插入於二次電池與充電源之間成爲將熔絲元 件部分η作爲充電源側。 -7- 200919891 申請專利範圍第5項的一種二次電池保護用電路，其 特徵爲：申請專利範圍第2項所述的具電阻的基板型溫度 溶絲的熔絲元件部分η比熔絲元件部分m還要短，將具 電阻的基板型溫度熔絲的熔絲元件串聯地插入於二次電池 與充電源之間成爲將熔絲元件部分η作爲充電源側。 申請專利範圍第6項的一種二次電池保護用電路，其 特徵爲：申請專利範圍第3項所述的具電阻的基板型溫度 熔絲的電阻値高的膜電阻能加熱熔絲元件部分η，將具電 阻的基板型溫度熔絲的熔絲元件串聯地插入於二次電池與 充電源之間成爲將溶絲元件部分η作爲充電源側。 申請專利範圍第7項的二次電池保護用電路是在申請 專利範圍第4項至第6項中任一項所述的二次電池保護用 電路中，具電阻的基板型溫度溶絲的膜電阻側的引線導體 C的長度方向熱電阻比熔絲元件側的引線導體的長度方向 熱電阻還要高。 申請專利範圍第8項的二次電池保護用電路是在申請 專利範圍第7項所述的二次電池保護用電路中，膜電阻側 的引線導體C的材質爲鐵系，而熔絲元件側的引線導體的 材質爲銅系。 可將一方的熔絲元件部分作成比另一方的熔絲元件部 分確實又快速地熔斷。因此在二次電池保護用電路中，充 電時，可將充電源側熔絲元件部分比二次電池側熔絲元件 部分在時間上優先地來熔斷而先切斷功率大的充電電源， 具安全性。 -8- 200919891 因把膜電阻r的引線導體的長度方向熱電阻作成高， 因此優異地防止由該引線導體漏出膜電阻發生熱而有效率 地傳達至溶絲元件’即使在膜電阻發熱上所費電力低也可 將熔絲元件良好地可進行熔斷作用。又，可提昇熔絲元件 的熔斷性且可減低熔絲元件不熔斷的危險性，即使在高運 轉電力之下’也可排除熔絲元件的不熔斷而可良好地避免 膜電阻的爆裂破斷。因此，可擴張其電阻的溫度熔絲的可 使用的運轉電力範圍。 【實施方式】 以下’一面參照圖式一面說明本發明的具電阻的溫度 熔絲的實施例。 第1圖是表示申請專利範圍第1項的實施例，第1 ( a )圖是表示省略絕緣密封物加以圖示的俯視圖，第1 ( b )圖是表示後視圖，第1(c)圖是表示第i(a)圖的c-c 斷面圖。 在第1 ( a )圖中’ 1是耐熱性，熱良傳導性的絕緣基 板例如陶瓷板。a、b是形成於絕緣基板1的單面1 〇丨兩 側的膜電極，2是中間電極’藉由導體糊狀物例如銀糊狀 的印刷，印相所形成。3是熔絲元件，橫跨配設於兩側膜 電極a、b及中間膜電極2’而焊接與膜電極的交叉部位 。熔絲元件3是被區分成隔著中間膜電極2的部分η及m 。在熔絲元件塗佈有焊劑’惟省略其圖示。A、B是分別 被接合於兩側膜電極a、b的帶狀引線導體，基板的正前 -9- 200919891 側兩隅角被切除，如第1 ( c )圖所示地，在近接於缺口 緣端的位置，朝基板1的另一面1 〇側上昇的階段差e形 成於各帶狀引線導體A、B，階段差上方的一面對於基板 另一面，僅位於帶狀引線導體的厚度上方。 在第1(b)圖中，41、42是設於基板1的另一面10 上的前後膜電極，與上述基板單面的膜電極a、b同樣地 ，藉由導體糊狀物的印刷，印相所設置。r是對於熔絲元 件3的長度方向偏設於前後的膜電極4 1、4 2間的膜電阻 ，藉由電阻糊狀物例如氧化釕粉末糊狀物的印刷，印相所 設置。在圖示的例子中，上述基板單面的熔絲元件3可左 右對稱地設於基板單面的中央線，而膜電阻r偏設於靠近 上述熔絲元件部分η側。因此，熔絲元件部分η的中心與 膜電阻的中心之距離是比熔絲元件部分m的中心與膜電 阻的中心之距離作成還要短。 在膜電阻上設有保護膜g例如玻璃印相膜。前後的膜 電極41、42的一方，是藉由通孔24被結線於基板單面的 中間膜電極2。c是被附設於前後膜電極的另一方4 1的側 部，C是帶狀引線導體，前端部以面接合被接合於上述側 部。5是覆蓋基板單面的絕緣密封物，例如第1 ( c )圖所 示地，在基板單面上與焊劑接觸所配設的保護薄片5 1例 如陶瓷薄片，在玻璃布薄片與該保護薄片51及基板單面 1 〇 1之間圍繞糊狀物而凝固的硬化性樹脂52例如環氧樹 脂所構成。 第2圖是表示申請專利範圍第2項的實施例的俯視圖 -10- 200919891 ，省略絕緣密封物。 在第2圖中’ 1是耐熱性，熱良傳導性的絕緣基板例 如陶瓷板。a、b是形成於絕緣基板的單面兩側的膜電極 ’ 2是中間電極’藉由導體糊狀物例如銀糊狀的印刷，印 相所形成。3是熔絲元件’橫跨配設於兩側，膜電極3 ' b 及中間膜電極2 ’而焊接與膜電極a、b，2是交叉部位。 溶絲元件3是被區分成隔著中間膜電極2的部分η及m。 在熔絲元件塗佈有焊劑，惟省略其圖示。 在上述中間膜電極2中，一側在圖示例中爲熔絲元件 部分η側緣端被局部地切除，而—方的熔絲元件部分^比 另一方的熔絲元件部分m作成還要長。 A、B是帶狀引線導體’被接合於膜電極a、b。C是 對於膜電阻的引線導體。 在此實施例中，基板另一面的膜電阻是如第1(b) 圖所示地偏設的情形較佳，惟如習知例如第6 ( b )圖所 示地，設置成左右對稱也可以。 第3圖是表示申請專利範圍第3項的實施例的後視圖 〇 省略此實施例的絕緣密封物的俯視圖是與第1(a) 圖同樣，與第1 ( a )圖同樣，a、b是在絕緣基板1的單 面1 01的兩側形成有膜電極a、b與中間膜電極2，而熔 絲元件橫跨配設於兩側膜電極a、b及中間膜電極2，與 各膜電極的交叉部位被焊接，熔絲元件3被區分成隔著中 間膜電極2的部分η及m，兩側膜電極a、b分別被接合 -11 - 200919891 於帶狀引線導體A、B，基板的正前側的兩隅角被切除， 在近接於缺口緣端的位置，朝基板1的另一面10側上昇 的階段差e形成於各帶狀引線導體A、B，階段差上方的 一面對於基板另一面，僅位於帶狀引線導體的厚度上方。 在第3圖中，1是耐熱性，熱良傳導性的絕緣基板例 如陶瓷板。4 1、42是設於基板的另一面上的前後膜電極 ，與上述膜電極同樣上藉由導體糊狀物的印刷，印相所設 置。rn、rm是設於前後的膜電極4 1、42間的不相同電阻 値的排設的膜電阻，各膜電阻rn、rm是分別設於基板另 一面物兩側。在圖示的實施例中，各膜電阻rn ( rm )是 位於基板單面的兩側膜電極a ( b )的背側。此些膜電阻 是與上述同樣地藉由電阻糊狀物例如氧化釕粉末糊狀物的 印刷，印相所設置。 在膜電阻上設有保護膜g例如玻璃印相膜。前後的膜 電極41、42的一方42，是與第1(b)圖所示地，藉由通 孔24被結線於基板單面的中間膜電極。c是被附設於前 後膜電極4 1、42的另一方4 1的補助部，C是帶狀引線導 體，前端部以面接合被接合於上述補助部c。 基板單面的熔絲元件，絕緣密封物等的構成是作成與 上述申請專利範圍第1項的實施例同樣的構成。 在該實施例中，排設膜電阻是如第4 ( a )圖所示地 被並聯連接，惟如第4 ( b )圖所示地，作成串聯連接也 可能。 在本發明的具電阻的基板型溫度熔絲中，藉由膜電阻 -12- 200919891 的通電熱使得熔絲元件被溶斷而被作動。 這時候，藉由申請專利範圍第1項，將熔絲元件部分 η的中心與膜電阻的中心之距離作成比溶絲元件部分m的 中心與膜電阻的中心之距離還要短，而可將熔絲元件部分 η比熔絲元件部分m優先地熔斷。 又’除了該構成以外，藉由申請專利範圍第2項，將 熔絲元件部分η的長度作成比熔絲元件部分m的長度還 要長，而可將熔絲元件部分η比熔絲元件部分m優先地 熔斷。 又’藉由申請專利範圍第3項，以基板另一面的排設 膜電阻的高膜電阻來加熱熔絲元件部分η，比以排設膜電 阻的低膜電阻所加熱的熔絲元件部分m還要大的熱量來 加熱’藉此’可將熔絲元件部分η比熔絲元件部分m優 先地熔斷。 第5圖是表示組裝本發明的具電阻的溫度熔絲的二次 電池保護用電路的充電時的等値電路，Μ是過放電防止開 關用FET’N是過充電防止開關用FET°n、m是本發明 的具電阻的溫度溶絲的熔絲元件部分，r是具電阻的溫度 熔絲的膜電阻，S是1C控制部，Tr是電晶體，E是二次 電池’ D是充電源’將熔絲元件部分η配設於充電源〇側 ，而將熔絲兀件部分m配設於二次電池Ε側。 作爲具電阻的溫度熔絲使用申請專利範圍第1項的具 電阻的溫度熔絲’若將熔絲元件部分η的中心與膜電阻r 的中心之距離作成比溶絲元件部分m的中心與膜電阻r的 -13- 200919891 中心之距離還要短，則可將比二次電池功率還要大的充電 源D側的溶絲元件部分η比二次電池E側的熔絲元件部 分m還可先熔斷而可先切斷功率大的充電源D。 作爲具電阻的溫度熔絲使用申請專利範圍第2項的具 電阻的溫度熔絲，若將熔絲元件部分η的長度作成比熔絲 元件部分m的長度還要長，則可將比二次電池Ε功率還 要大的充電源D側的熔絲元件部分η比二次電池側的熔 絲元件部分m還可先熔斷而可先切斷功率大的充電源D。 作爲具電阻的溫度熔絲使用申請專利範圍第3項的具 電阻的溫度熔絲，若以基板另一面的排設膜電阻的高膜電 阻來加熱熔絲元件部分η，比以排設膜電阻的低膜電阻所 加熱的熔絲元件部分m還要大的熱量來加熱，則可將比 二次電池功率還要大的充電源D側的熔絲元件部分η比 二次電池Ε側的熔絲元件部分還可先熔斷，而可先切斷功 率大的充電源。 在第5圖中，A、Β是對應於熔絲元件側的引線導體 ，C是對應於膜電阻側的引線導導體。在帶狀引線導體A 、：B，因經常地流著電路電流，因此，在銅、銅合金等的 通常的導電性材質使用著鍍錫。僅在異常時，電晶體開關 Tr被導通而在引線導體C流著電流，使得膜電阻r發熱 ，如上述地熔絲元件部分η、m被熔斷。這時候，在引線 導體C，爲了防止膜電阻r的發生熱傳在該引線導體C而 洩漏的情形，在高熱電阻的金屬，例如鐵、鐵合金等的鐵 系或鎳等使用鍍錫，而將引線導體C的長度方向熱電阻作 -14 - 200919891 成比引線導體A或B的長度方向熱電阻還要高較佳。欲 將引線導體C的長度方向熱電阻作成比引線導體A或b 的長度方向熱電阻還要高，會將引線導體C的斷面積作成 比引線導體A或B的斷面積還要小也有效。在任何情形 下’都可將引線導體C的電阻比膜電阻r的電阻作成充分 低，而可保證利用二次電池E的膜電阻r的高效率的發熱 【圖式簡單說明】 第1(a)圖至第1(c)圖是表示本發明的二次電池 保護用電路的一實施例的圖式。 第2圖是表示與本發明的具電阻的溫度熔絲的上述不 同的實施例的主要部分的圖式。 第3圖是表示與本發明的具電阻的溫度熔絲的上述不 同的實施例的主要部分的圖式。 第4(a)圖及第4(b)圖是表示圖示於第3圖的實 施例的等値電路的圖式。 第5圖是表示組裝具電阻的溫度熔絲的二次電池保護 用電路的圖式。 第0(a)圖至第6(c)圖是表示習知的具電阻的溫 度熔絲的圖式。 【主要元件符號說明】 1 :基板 -15- 200919891 1 〇 :基板另一面 101 :基板單面 a、b :兩側膜電極 2 :中間膜電極 3 :熔絲元件 η、m :熔絲元件部分 41、42:前後膜電極 r :膜電阻 rn、rm :電阻値不相同的排設膜電阻 A、B、C :帶狀引線導體 5 ‘·絕緣密封物 -16-200919891 IX. EMBODIMENT OF THE INVENTION [Technical Field] The present invention relates to a substrate type temperature fuse having resistance, and is useful as a temperature fuse having resistance for a secondary battery protection circuit board. [Prior Art] A secondary battery For example, when a lithium ion battery is used as a power source for a portable device, the secondary battery cell and the protection circuit are housed. The protection circuit has an overcharge prevention switch, and the overdischarge prevention has a non-reset cover when the switches cannot correspond. Fig. 5 is a view showing an example of a protection circuit for a secondary battery in which a temperature-containing fuse Ao having a resistance is connected to an overcharge prevention switch) and an over-discharge prevention switch FET (?). In the resistor-equipped temperature fuse, the resistor r that thermally couples, for example, the film resistance to the tandem filaments η, m becomes such that the two fuse element portions η, m are melted by the electric heating, and the resistors are The fuse element portions η, m are electrically connected in parallel. S is an IC. When charging, it detects an overcharge prevention signal and generates a power-on prevention FET. When discharging, it detects an over-discharge 放电 discharge prevention signal and breaks the over-discharge prevention FET. When these methods are coped, the communication signal is transmitted from the 1C circuit S to the transistor Tr of the transistor, and the secondary battery E or the charging source D is used to energize the temperature fuse of the heat generating resistor, and the occurrence occurs. The hot flame is loaded in the ^electron machine and the component. The switch, the f fuse part, the FET (N; part: the resistance of the r is broken by the control part ί, the FET has no Tr, profit; Power supply = broken fuse -4- 200919891 Element n, m between the secondary battery E and the load (charging or charging source D). Conventional 'as a temperature fuse with resistance, as in 6 (a) As shown in the figure, 'the membrane electrodes a and b and the intermediate membrane electrode 2 are disposed on one side of the insulating substrate, and the fuse element 3 is connected across the membrane electrodes a, b, 2, and the flux is applied to the fuse element. As shown in Fig. 6(b), the membrane electrodes a and b which are electrically connected to the membrane electrodes a and b through the through holes are provided on the other surface of the insulating substrate, and the strip conductor A, B is bonded to the membrane electrodes a, b'. Further, the front and rear membrane electrodes 41, 42 are disposed on the other side of the same substrate. One of the rear membrane electrodes 42 and the intermediate membrane electrode 2 are provided, and the membrane resistance r is provided between the membrane electrodes 41 and 42, and the strip conductor conductor C is bonded to the other side of the front and rear membrane electrodes. (e) In the case of the above-mentioned secondary battery protection circuit, the above-mentioned secondary battery protection circuit is disclosed in the above-mentioned Japanese Patent Laid-Open Publication No. 2003-217416. In the charging at the time of Fig. 5, the charging source side fuse element portion η is more preferentially blown than the secondary battery side fuse element portion m, and it is safer to cut off the charging source d having a large power first. However, in the above-described temperature fuse having resistance, the film resistance r is thermally set equally in the two fuse element portions η, m, and it is difficult to surely ensure the priority fusing. As described above, In the temperature-dissolving wire of the resistor, the protection circuit is different. -200919891 The heat of the film resistance r is always transmitted to the fuse element 3 and is activated by the fuse element 3. Therefore, if the film resistance r is generated by the above heat (electric power) ) too small, it will not work and run electricity When the electric power applied to the membrane resistor r is a large electric power, if the fuse element is not blown, the membrane resistance may be broken by the large electric power. However, in the conventional temperature melting with resistance In the wire, the lower limit of the operable operating power is relatively high. Moreover, the upper limit of the fusible operating power of the fuse element is relatively low, and the overall operating power range is also inconvenient. The object of the present invention is on the substrate. On both sides, there are two membrane electrodes a, b and an intermediate membrane electrode. In these membrane electrodes, a fuse element is integrally provided, and a fuse element portion m and a membrane electrode b and an intermediate membrane between the membrane electrode a and the intermediate membrane electrode are provided. The fuse element portion η between the electrodes, the film resistance in which the fuse element portions η, m are blown by the energization heating, has the resistance in the temperature fuse on the other side of the substrate 'for the other fuse element The portion surely fuses one of the fuse element portions preferentially. Further, it is possible to protect the secondary battery with a temperature-resistant fuse having a wide range of operating electric power. A substrate-type temperature fuse with resistance of the first aspect of the present invention belongs to a membrane electrode a, b and an intermediate membrane electrode on one side of a substrate, and a fuse is integrally provided on the membrane electrode. The element has a fuse element portion m between the membrane electrode a and the intermediate membrane electrode, and a fuse element portion η between the membrane electrode b and the intermediate membrane electrode, and the fuse element portion η, m is melted by energization heating. The film resistor has a temperature-dependent temperature fuse on the other side of the substrate, and is characterized in that the distance between the fuse element portion η and the film resistance -6-200919891 and the distance between the fuse element portion m and the film resistance are different. A substrate-type temperature fuse having a resistance according to the second aspect of the present invention belongs to a membrane electrode a, b and an intermediate membrane electrode on one side of the substrate, wherein the membrane electrode is provided with a fuse The element has a fuse element portion m between the membrane electrode a and the intermediate membrane electrode, and a fuse element portion η between the membrane electrode b and the intermediate membrane electrode, and the fuse element portion η, m is melted by energization heating. The film resistor has a temperature-dependent temperature fuse on the other side of the substrate, and is characterized in that the length of the wire element portion η is different from the length of the fuse element portion m. A substrate type temperature fuse having a resistance according to the third aspect of the present invention belongs to a membrane electrode a, b and an intermediate membrane electrode on one side of the substrate, wherein the membrane electrode is provided with a fuse at all The element has a fuse element portion m between the membrane electrode a and the intermediate membrane electrode, and a fuse element portion η between the membrane electrode b and the intermediate membrane electrode, and the fuse element portion η is energized by the energization heating on the other surface of the substrate. The m-fused resistor has a temperature-dependent fuse on the other side of the substrate, and the resistance of the other surface of the substrate is formed by a plurality of film resistors having different resistances arranged on opposite sides of the other side of the substrate. . A circuit for protecting a secondary battery according to claim 4, characterized in that: the distance between the fuse element portion η of the substrate type temperature fuse having the resistance described in claim 1 and the film resistance is larger than that of the fuse The distance between the element portion m and the film resistance is shorter, and the fuse element of the substrate type temperature fuse having the resistance is inserted in series between the secondary battery and the charging source so that the fuse element portion η is used as the charging source side. -7-200919891 A secondary battery protection circuit according to claim 5, characterized in that: the fuse element portion η of the substrate-type temperature-dissolving wire having a resistance according to the second aspect of the patent application is a fuse element The portion m is also shorter, and the fuse element of the substrate type temperature fuse having the resistance is inserted in series between the secondary battery and the charging source so that the fuse element portion η is used as the charging source side. A circuit for protecting a secondary battery according to Item 6 of the patent application, characterized in that: the resistance of the substrate-type temperature fuse having the resistance described in claim 3 is high, and the film resistance of the fuse element can heat the fuse element portion η The fuse element of the substrate type temperature fuse having the resistance is inserted in series between the secondary battery and the charging source so that the melting element portion η is used as the charging source side. The secondary battery protection circuit according to the seventh aspect of the invention, wherein the circuit of the substrate type temperature-dissolving wire having a resistance is used in the secondary battery protection circuit according to any one of claims 4 to 6 The longitudinal direction thermal resistance of the lead conductor C on the resistance side is higher than the longitudinal direction thermal resistance of the lead conductor on the fuse element side. In the secondary battery protection circuit according to the seventh aspect of the invention, the lead conductor C of the film resistance side is made of iron, and the fuse element side is used. The lead conductor is made of copper. One of the fuse element portions can be made to fuse more reliably than the other fuse element portion. Therefore, in the secondary battery protection circuit, when charging, the charging source side fuse element portion can be preferentially blown in time with respect to the secondary battery side fuse element portion, and the power source having a large power can be cut off first, and it is safe. Sex. -8-200919891 Since the longitudinal resistance of the lead conductor of the film resistor r is made high, it is excellent in preventing the heat generated by the leakage of the film conductor from the lead conductor and efficiently being transmitted to the molten wire element even in the case of the film resistance heat generation. The low power consumption also allows the fuse element to be well blown. Moreover, the fuse of the fuse element can be improved and the risk of the fuse element not being blown can be reduced, and even under high operating power, the fuse element can be prevented from being blown, and the bursting of the film resistance can be well avoided. . Therefore, the usable operating power range of the temperature fuse that can expand its resistance. [Embodiment] Hereinafter, an embodiment of a temperature-resistant fuse having a resistance of the present invention will be described with reference to the drawings. Fig. 1 is a view showing an example of the first item of the patent application, wherein Fig. 1(a) is a plan view showing the insulating seal omitted, and Fig. 1(b) is a rear view, Fig. 1(c) Is a cc section view showing the i-th (a) figure. In the first (a) diagram, '1' is a heat-resistant, heat-conductive insulating substrate such as a ceramic plate. a and b are film electrodes formed on both sides of the insulating substrate 1 on both sides, and 2 is an intermediate electrode formed by printing a conductor paste such as a silver paste. 3 is a fuse element which is placed across the film electrodes a and b and the intermediate film electrode 2' on both sides to be welded to the intersection of the film electrodes. The fuse element 3 is a portion η and m which are separated by the intermediate film electrode 2. The fuse element is coated with a flux ', but the illustration is omitted. A and B are strip conductors respectively bonded to the membrane electrodes a and b on both sides, and the two corners of the front side of the substrate are cut off, as shown in the first (c), in the vicinity of The position difference e at which the edge of the notch is raised toward the other side of the substrate 1 is formed on each of the strip conductors A and B, and the upper side of the step is located above the thickness of the strip conductor on the other side of the substrate. In the first (b), 41 and 42 are front and rear film electrodes provided on the other surface 10 of the substrate 1, and printed by the conductor paste in the same manner as the film electrodes a and b on one side of the substrate. The print is set. r is a film resistance which is interposed between the front and rear film electrodes 4 1 and 4 2 in the longitudinal direction of the fuse element 3, and is printed by a resist paste such as a yttria powder paste. In the illustrated example, the fuse element 3 on one side of the substrate may be symmetrically disposed on the center line of one side of the substrate, and the film resistance r may be offset from the side of the fuse element portion n. Therefore, the distance between the center of the fuse element portion η and the center of the film resistance is shorter than the distance between the center of the fuse element portion m and the center of the film resistance. A protective film g such as a glass printing film is provided on the film resistor. One of the front and rear membrane electrodes 41 and 42 is an intermediate membrane electrode 2 which is connected to one surface of the substrate by a through hole 24. c is a side portion of the other side of the front and rear film electrodes, and C is a strip-shaped lead conductor, and the front end portion is joined to the side portion by surface bonding. 5 is an insulating sealing material covering one surface of the substrate. For example, as shown in FIG. 1(c), a protective sheet 51, such as a ceramic sheet, is disposed on the single surface of the substrate in contact with the flux, and the glass cloth sheet and the protective sheet are 51 and a curable resin 52 which is solidified around the paste on one side of the substrate 1 〇1, for example, an epoxy resin. Fig. 2 is a plan view showing an embodiment of the second application of the patent scope -10- 200919891, omitting the insulating sealing material. In Fig. 2, '1' is a heat-resistant, thermally conductive substrate such as a ceramic plate. a and b are film electrodes formed on both sides of one side of the insulating substrate. The second electrode is formed by printing a conductor paste such as a silver paste. 3 is a fuse element erected on both sides, and the film electrode 3'b and the intermediate film electrode 2' are welded to the film electrodes a, b, and 2 as intersection portions. The melting element 3 is a portion η and m which are separated by the intermediate film electrode 2. The fuse element is coated with a flux, but its illustration is omitted. In the above intermediate film electrode 2, one side is partially cut off at the side edge end of the fuse element portion η in the illustrated example, and the side fuse element portion is made more than the other fuse element portion m. long. A and B are strip conductors ' joined to the membrane electrodes a and b. C is a lead conductor for the film resistance. In this embodiment, it is preferable that the film resistance of the other surface of the substrate is offset as shown in Fig. 1(b), but as shown in Fig. 6(b), for example, it is set to be bilaterally symmetric. can. Fig. 3 is a rear elevational view showing an embodiment of the third application of the patent application. The plan view of the insulating sealing material omitting the embodiment is the same as that of the first (a) diagram, and is the same as the first (a) diagram. The membrane electrodes a and b and the intermediate membrane electrode 2 are formed on both sides of the single surface 101 of the insulating substrate 1, and the fuse element is disposed across the membrane electrodes a and b and the intermediate membrane electrode 2, and The intersection of the membrane electrodes is welded, the fuse element 3 is divided into portions η and m across the interlayer membrane electrode 2, and the membrane electrodes a, b on both sides are joined -11 - 200919891 to the strip conductors A, B, respectively. The two corners of the front side of the substrate are cut away, and at a position close to the edge of the notch, a step e rising toward the other surface 10 side of the substrate 1 is formed on each of the strip conductors A and B, and a side above the step is opposite to the substrate. The other side is only above the thickness of the strip lead conductor. In Fig. 3, 1 is a heat-resistant, heat-conductive insulating substrate such as a ceramic plate. 4 1 and 42 are front and rear film electrodes provided on the other surface of the substrate, and are printed by a conductor paste as in the film electrode, and printed. Rn and rm are film resistances of different resistances 设 arranged between the front and rear film electrodes 4 1 and 42 , and the film resistances rn and rm are respectively provided on both sides of the substrate. In the illustrated embodiment, each film resistance rn (rm) is the back side of the film electrodes a(b) on both sides of the substrate. These film resistances are set by printing of a resistor paste such as a cerium oxide powder paste in the same manner as described above. A protective film g such as a glass printing film is provided on the film resistor. One of the front and rear membrane electrodes 41 and 42 is an intermediate membrane electrode which is connected to one surface of the substrate by a through hole 24 as shown in Fig. 1(b). c is a supplementary portion attached to the other of the front and rear film electrodes 4 1 and 42 , and C is a strip lead conductor, and the front end portion is joined to the auxiliary portion c by surface bonding. The configuration of the fuse element on one side of the substrate, the insulating sealing material, and the like is the same as that of the first embodiment of the above-mentioned patent application. In this embodiment, the arrangement of the film resistors is connected in parallel as shown in Fig. 4(a), but it is also possible to make a series connection as shown in Fig. 4(b). In the substrate type temperature fuse having resistance of the present invention, the fuse element is dissolved by the heat of application of the film resistance -12-200919891 to be actuated. At this time, by applying the first item of the patent range, the distance between the center of the fuse element portion η and the center of the film resistance is made shorter than the distance between the center of the wire element portion m and the center of the film resistance, and The fuse element portion n is preferentially blown than the fuse element portion m. Further, in addition to the configuration, by the second item of the patent application, the length of the fuse element portion η is made longer than the length of the fuse element portion m, and the fuse element portion n can be made larger than the fuse element portion. m is preferentially blown. Further, by applying the third item of the patent scope, the fuse element portion η is heated by the high film resistance of the film resistance arranged on the other side of the substrate, and the fuse element portion m heated by the low film resistance of the film resistance is arranged. Further heat is required to heat 'by this' to fuse the fuse element portion η preferentially to the fuse element portion m. 5 is an isometric circuit for charging a secondary battery protection circuit in which a temperature fuse having a resistance of the present invention is assembled, and the FET 'N for overdischarge prevention switch is an overcharge prevention switch FET°n, m is the fuse element portion of the temperature-dissolving wire with resistance of the present invention, r is the film resistance of the temperature-fuse with resistance, S is the 1C control portion, Tr is the transistor, and E is the secondary battery 'D is the charging source 'The fuse element portion η is disposed on the side of the charging source ,, and the fuse element portion m is disposed on the side of the secondary battery. As a temperature fuse having a resistance, the temperature fuse having the resistance of the first aspect of the patent application is used. If the distance between the center of the fuse element portion η and the center of the film resistance r is made larger than the center and the film of the portion of the melt element m The distance r of the resistance r-13-200919891 center is shorter, and the portion of the filament component on the side of the charge source D larger than the power of the secondary battery can be made larger than the portion of the fuse element on the side of the secondary battery E. First, the power source D can be cut off first. As the temperature fuse having the resistance, the temperature fuse having the resistance of the second item of the patent application is used. If the length of the fuse element portion η is longer than the length of the fuse element portion m, the ratio can be twice. The fuse element portion η on the charging source D side having a larger battery power can be blown first than the fuse element portion m on the secondary battery side, and the charging source D having a large power can be cut off first. As a temperature fuse having a resistance, the temperature fuse having the resistance of the third item of the patent application is used, and if the fuse element portion η is heated by the high film resistance of the film resistance on the other side of the substrate, the film resistance is arranged. The part of the fuse element heated by the low film resistance is heated by a large amount of heat, and the fuse element portion η on the charging source D side larger than the secondary battery power can be melted than the secondary battery side. The wire component portion can also be blown first, and the power source with high power can be cut off first. In Fig. 5, A and Β are lead conductors corresponding to the fuse element side, and C is a lead conductor corresponding to the film resistance side. In the strip lead conductors A and B, since a circuit current flows frequently, tin plating is used for a general conductive material such as copper or a copper alloy. Only in the case of an abnormality, the transistor switch Tr is turned on and a current flows in the lead conductor C, so that the film resistance r generates heat, and the fuse element portions η, m are melted as described above. In this case, in the lead conductor C, in order to prevent heat generation of the film resistance r from leaking to the lead conductor C, tin plating is used for a metal having a high thermal resistance such as iron or nickel such as iron or iron alloy. The longitudinal direction of the lead conductor C is a thermal resistance of 14 - 200919891 which is preferably higher than the longitudinal direction of the lead conductor A or B. It is effective to make the longitudinal direction thermal resistance of the lead conductor C higher than the longitudinal direction thermal resistance of the lead conductor A or b, and to make the sectional area of the lead conductor C smaller than the sectional area of the lead conductor A or B. In any case, the resistance of the lead conductor C can be made sufficiently lower than the resistance of the film resistor r, and high-efficiency heat generation using the membrane resistance r of the secondary battery E can be ensured. [Simple description of the drawing] 1 (a) Fig. 1(c) is a view showing an embodiment of a secondary battery protection circuit of the present invention. Fig. 2 is a view showing the main part of the above-described different embodiment of the temperature-resistant fuse having the electric resistance of the present invention. Fig. 3 is a view showing the main part of the above-described different embodiment of the temperature-resistant fuse having the electric resistance of the present invention. Figs. 4(a) and 4(b) are diagrams showing an isotropic circuit of the embodiment shown in Fig. 3. Fig. 5 is a view showing a circuit for protecting a secondary battery in which a temperature fuse having a resistance is assembled. Figs. 0(a) to 6(c) are diagrams showing a conventional temperature fuse having resistance. [Main component symbol description] 1 : Substrate-15- 200919891 1 〇: The other side of the substrate 101: One side of the substrate a, b: Both sides of the film electrode 2: The intermediate film electrode 3: The fuse element η, m: The fuse element part 41, 42: before and after the membrane electrode r: membrane resistance rn, rm: resistance 値 different arrangement of membrane resistance A, B, C: strip lead conductor 5 '· insulation seal-16-