200903948 '九、發明說明： 【發明所屬之技術領域】 、本發㈣有關-種對於串聯連接有複數個電池之組電 池的充電方法，尤並右關一插具 、有關種取適合用於串聯連接複數個 鋰離子一κ包池之組電池的充電之充電方法。 【先如技術】 當對串聯連接有複數個電池的組電池進行充電時，係 _的電流對各個電池進行充電。因此，當所有電池的 電性特性完全相同時，經充雷的 、 ，，死電的各個％池的電壓會變成相 同的黾壓。然而，在實降的細 ^ 只不的、、且電池充電中，各個電池的電 壓不會變成相同。這是# 。 、斤有的龟池早元（cell)的電性特 性不會完全一致之故。各個 、 U电池的電壓差會隨著使用而逐 漸史大。這是由於各個電 Αμ x W电池的名化不一致之故。此缺點雖 此以/刀別對串聯連接的各個電池進行充電的方法來解決， 然而此種充電電路非常的複雜，且必須將組電池中各個電 池的接續點作為端子#直噯 啕于使其路出至外部，故實際上無法採 。土卜此種構造的組電池亦尚未實用化。因此，植電 池係藉由將正負輸出端子連接於充電器來進行充電。因 此，會因為電池電性特性的不一致而產生電壓差。 ，進仃充電時’當某個電池的電塵變得比最大設定電 壓還高時，此電池合明 θ月顯地奐化，且無法實現組電池的安 全充電。因此，pigL安 + 、 已^木有—種組電池的充電方法，係一邊 檢測各個電池的雷愿、真λ a 邊對組電池進行充電，且當任一個 電池的電屢超過I士 < ^ 取大5又疋電壓時會停止充電（參照專利文 320215 5 200903948200903948 'Nine, invention description: 【Technical field to which the invention belongs】, the present invention (4) relates to a charging method for a battery pack in which a plurality of batteries are connected in series, and is particularly suitable for a series connection. A charging method for charging a battery of a plurality of lithium ion-kappa pools. [First as technology] When a battery pack in which a plurality of batteries are connected in series is charged, the current of the battery is charged for each battery. Therefore, when the electrical characteristics of all the batteries are identical, the voltages of the respective % cells of the dead charge, the dead power will become the same. However, in the case of the actual drop, and the battery is charged, the voltage of each battery does not become the same. this is# . The electric characteristics of the turtle pool of the turtle pool are not completely consistent. The voltage difference between the individual and U batteries will gradually increase with the use. This is due to the inconsistency of the names of the individual Αμ x W batteries. Although this disadvantage is solved by the method of charging each battery connected in series, the charging circuit is very complicated, and the connection point of each battery in the assembled battery must be used as the terminal # The road is out to the outside, so it is actually impossible to pick. The assembled battery of this type of construction has not yet been put into practical use. Therefore, the planted battery is charged by connecting the positive and negative output terminals to the charger. Therefore, a voltage difference occurs due to inconsistencies in battery electrical characteristics. When charging and charging, when the dust of a battery becomes higher than the maximum set voltage, the battery is clearly degraded and the battery is not safely charged. Therefore, the charging method of the pigL++, has been used to charge the battery, and the battery is charged while detecting the battery's ambition and true λa, and the power of any battery repeatedly exceeds 1 士< ^ When charging 5 and 疋 voltage, charging will stop (refer to Patent Document 320215 5 200903948)
曰本特開2001-126772號公報 專利文獻 【發明内容】 (發明所欲解決之課題） 上述的充電方法係能一邊將各個電池的電壓控制在最 大設定電麼以下並-邊進行充電。不過由於此充電方法係 當任-個電池㈣星上升達至最大設定電料會停止充 電，因此會有當電池的電性特性發生不一致時，組電池並 法充分地充飽電之缺點。這是由於儘管電屢未上升至最二 設定電墨的電池仍處於可以繼續進行充電的狀態，卻停止 進行充電之故。 明係以解決上述缺點為目的而進行開發 的係提供一種能-邊將各個電池的電壓控制在 :以定電壓以下，—邊增大組電池的充電容量之充電: (解決課題的手段） 為了達成上述目的，太恭 備有以下的構成。 本發明的組電池的充電方法係具 之έ且電I^if電方去係—邊檢測串聯連接有複數個電池 之組電池的各個電池的電 电吧 定電流充電。此充電方^ 對纽電池進行定電塵/ 電池單元的電"7預定的取樣週期來檢測各個 最大設定電壓時，降;用: 力，並進衫電壓"電流充^。電池進行充電的充電電 320215 6 200903948 預定::二:：::乾圍第2項的組電池的充電方法係以 預疋=取㈣期來檢測各個電池單元的電壓，且當任 電池單元的電壓超過預执 個 ”、、也^電料，降低用以對 :=ΐ:!電塵’並進行定電墨/定電流充電。 妹專利：：專利乾圍第3項的組電池的充電方法係申 項所記載的組電池的充電方法，且當任- 降低用….广屋時’以特定的比率來 降低用以對組電池進行充電的充電電壓。 =發明的申請專利範圍第4項的組電池的充電方法係 申，專利範圍第2項所記载的組電池的充電方法，壬、 池;：的電*超過最大設定電㈣，降低用；組 _ = “的充電電壓，並根據電池單元的電墨與最大 :疋電壓的電壓差來特定使充電電壓降低的比率，當電舞 差大時增大使充電電壓降低的比率。 土 本發㈣申請專利㈣第5項的組電池的充電方法係 (—π專利圍第2項所記载的組電池的充電方法，且當任 :個電池單it的電超過最大設^電屡時，降低用以對組 雷池，仃充電的充電電塵’並根據已超過最大設定電遷的 、、一，單元的内部電阻來特定使充電電壓降低的比率，當電 池單7〇的内部電阻大時增大使充電電壓降低的比率。 本發明的申請專利範圍第6項的組電池的充電方法係 申明專利範圍第2項所記載的組電池的充電方法，且當任 、個電池單元的電壓超過最大設定電壓時，將用以對組電 也進行充電的充電電壓降低至其為將各電池單元的電壓加 320215 7 200903948 、算後之電屋值的電池電池，以進行充電。 以子i -:月的,μ專利範圍第7項的組電池的充電方法係 個^-取&週期來檢測各個電池單元的電屢，且當任二 斟广·：凡的電壓超過預設的最大設定電壓時，降低用以 電、。…、進订充電的設定電流’並進行定電麼/定電流充 中言主Ϊ = Μ # #利範㈣8項的組電池的充電方法係 明、1 :圍第7項所記載的組電池的充電方法，且當任 個電池早凡的電壓超過最大設定電壓時，以特定比率來 降低用以對組電池進行充電的設定電流。 本發明的申請專利範圍第9項的組電池的充電方法係 一清ί利？圍第7項所記載的組電池的充電方法，且當任 7個電:也單元的電壓超過最大設定電壓時，降低用以對組 電池進订充電的設定電流，並根據電池單元的電壓與最大 設定電壓的電壓差來特定使設定電流降低的比率，當電壓 差大時增大使設定電流降低的比率。 ^本毛明的申请專利範圍第10項的組電池的充電方法 係申請專利範圍第7項所記載的組電池的充電方法，且當 任一個電池單元的電壓超過最大設^電壓時，降低用以^ 組電池，行充電的設定電流，並根據已超過最大設定電壓 =電池單元的内部電阻來特定使設定電流降低的比率，且 當電池單元的内部電阻大時增大使設定電流降低的比率。 ^本發明的申請專利範圍第11項的組電池的充電方法 係根據電池的溫度來改變最大設定電壓。 320215 8 200903948 本發明的申請專利範圍第12項的組電池的充 申請專利範圍第7項所記載的組電池的充電方法，且根 據電池的溫度來改變設定電流。本發明的申請專利範 r員的組電池的充電方法係將被降低的設定電流作為設 疋成多階段的設定電流。 (發明效果） f" s 本發明的組電池的充電方法之特徵為能一邊將各個電 、的電壓控制在最大設定電壓以下，—邊增大組電池的充 ，各I。這是由於本發㈣充電方法係以預定的取樣週期 ^檢料個電池單元的電壓，且當任-個電池單元的電壓 k最大叹定电壓時，會降低用以對組電池進行定電壓充 :的-又疋電壓’或者減少用以進行定電流充電的設定電 、，並持續對組電池進行定電壓/定電流充電之故。 第圖係顯示使用本發明實施例的充電方法來進行充 電的組電池的電池單元的電壓與充電電流之曲線圖。如第 4士圖所不’當向電壓電池單元的電壓超過最大設定電壓 日守，在此時刻⑼中，會控制成減少用以對組電池進行充電 :充電電力。由於控制成減少充電電力，因此組電池的充 :電[a降低’且充電電流亦會減少。因此，高電壓電池 單：白上電壓會因為充電電流的減少而降低，且會變成比最 :6又疋電壓還低。由於在此狀態下繼續對組電池進行充 电口此會對咼電壓電池單元進行充電而使電壓逐漸上 升。當高電壓電池單元的電壓再次超過最大設定電壓時， 在此時刻（U)中’會使充電電力進一步降低。在時刻t3、t4 320215 9 200903948 中反覆進行此充電狀態，當組電池的充電電流減少達至最 )電机h ’結束充電。在此狀態下進行充電的組電池係能 恆常地被控制成高電壓電池單元的電壓不會超過最大設定 電愚，正確來說，雖超過非常短的時間，但隨後即控制成 不會超過最大設定電塵，而能將組電池充分地充飽電。再 者，本發明的充電方法並非控制成從最初開始進行充電時 即將充電電流限制得很小，使高電壓電池單元的電壓不合 超過，大設定電愿。由於本發明的充電方法係以當高電^ 電池單元的電壓超過最大設定電壓時會減少充電電力之方 式來進行控制，因此能在最初開始進行充電時以大電流來 進仃充電，且將高電壓電池單元的電壓控制成比最大設定 .電壓還低’並使組電池充分地充飽電。因此，本發明的充 J方法係實現能在短時間内將組電池充飽電、將組電池的 n電壓電池單元的電壓控制成比最大設定電壓還低、且增 大組電池的充電容量之特徵。 曰 本發明的申請專利範圍第2項的充電方法係當高電壓 電池單元的電壓超過最大設定電糾，會降低用以對組電 池進行充電的充電電壓而將充電電力限制為較小。本發明 的申請專利範圍第7項的充電方法係當高電壓電池單元的 電壓超過最大設定電壓時’會控制成減少用以對組電池進 =充電的設定電流而減少充電電力。组電池的充電器幾乎 冤無例外地皆使用切換㈣咖幻電源巧換電源係將輸 入的100V的父流轉換成直流，經由切換元件將直流電力 輪入至變壓器的輪入側’將變壓器的輸出側予以整流而轉 320215 10 200903948 -換成直流，輪出用以對組電池進行充電的電力 源係在用以將切換元件切換成導通刀、電 =週期（duty)中使輪出電壓與輸出電流 ^ 出電壓穩定化，係且借古雷阿^ 為了使輪 換元件切換点、曾〜、1回授電路’以控制用以將切 換兀件切換成導通/關斷的今刀 電流穩定化，係具備有電流回授二=制=: 元件切換成導通/關斷的工作週期。本發明二= 第2 ϋ的右φ +、x > 十5x月节5月專利範圍 雷、也W 係能控制電壓回授電路而簡單地控制la ^的h電力。本㈣㈣請專利範 方 :係能控制電流回授電路而簡單地控制㈣池的= f發明的t請專職圍第3項的充電方法係電 用以對疋電壓時’以特定比率來降低 圍第8項^ 電的充電電麗。本發明的申請專利範 ==電方法係當高電厂堅電池單元的㈣超過最大 “Γ以特㈣比率來降低用以對組電池進行充電 二這些充電方法係在高電壓電池單元的電壓每 電塵時，將用以對組電池進行充電的充電 ::低5/。，或將設定電流減少2〇%。此方法能作成簡 :、电路構成，且—邊防止高電遷電池單元的電屋異常變 南 邊使組電池充分地充飽電。 告古^發明的申請專利範圍第4項與第9項的充電方法係 池早兀的電壓超過最大設定電壓時’根據高電 土^早疋的電壓與最大設定電塵的電壓差來特定降低充 320215 11 200903948 * 電電壓的比率或減少設定電流的比率，且當電壓差大時增 大使充電電壓或設定電流減少的比率。此方法係能在高電 壓電池單元的電壓超過最大設定電壓之後，將用以對組電 池進行充電的電塵或電流調整成最佳值。因此，能一邊防 止高電壓電池單元的電壓變得異常高，一邊在短時間内將 組電池充分地充飽電。 本發明申請專利範圍第5項與第10項的充電方法係當 高電壓電池單元的電壓超過最大設定電壓時，根據已超過 € 最大設定電壓的電池單元的内部電阻來特定使充電電壓或 設定電流降低的比率，且當電池單元的内部電阻大時會增 大使充電電壓或設定電流降低的比率。由於此方法亦能在 .高電壓電池單元的電壓超過最大設定電壓之後，將用以對 •組電池進行充電的電壓或電流調整成最佳值，因此能一邊 防止高電壓電池單元的電壓變得異常高，一邊在短時間内 將組電池充分地充飽電。 ( 本發明的申請專利範圍第6項的充電方法係當高電壓 電池單元的電壓超過最大設定電壓時，將用以對組電池進 行充電的充電電壓降低至其為將各電池單元的電壓加算後 之電壓值的電池電壓以進行充電，因此能簡單地進行充電 電壓的控制、確實地防止充電電壓變得比電池電壓還低、 並能繼續進行組電池的充電。 本發明的申請專利範圍第11項的充電方法係根據電 池溫度來變更用以比較高電壓電池單元的電壓之最大設定 電壓，因此電池處於低溫度區，即使在電池處於高溫度區 12 320215 200903948 的狀態下，亦能一邊保護電池，一邊對組電池進行充電而 不會使電池性能降低。 本發明的申請專利範圍第12項的充電方法係根據電 池的溫度來改變甩以對電池進行充電的設定電流，因此即 使在電池處於低溫度區、或處於高溫度區的狀態下，亦能 一邊保護電池，一邊對組電池進行充電而不會使電池性能 降低。在本發明的申請專利範圍第丨3項的充電方法中，被 降低的設定電流係設定成多階段的設定電流，是一種簡便 的充電方法，且進行此種充電方法的電源電路亦為簡單且 低成本的電路。 【實施方式】 * 以下參照圖式說明本發明的實施例。惟以下所示的實 施例僅為用以將本發明的技術思想予以具體化之組電池的 充電方法之例示，本發明的組電池的充電方法並未限定於 /下的方法。並且，本說明書亦非用以將申請專利範圍所 ί 5己載的構件限定成實施例的構件者。 弟1圖係用以對由福袁 奵田如数個鋰離子二次電池3所構成的 電：：丄=充電之充電電路的方塊圖。》1圖中的充電 電源電路4,係對组電池1進行定電麗/ 電、、也:進J制電路5，係用以控制該電源電路4對組 毛池1進仃充電的充電電壓與設定 係柃、、目,丨々& & 心电机，電堡檢測電路6， 係杈測各個電池3的電壓並 户私、糾兩你 和出至该控制電路5 ;電 -檢測電路7,係檢測電池3的充電、 '电 uM 〇 y 电々丨L ’以及 >里度檢》則 电路8’係檢測電池3的溫度並予以輪出。 又㈣ 320215 13 200903948 第】圖中的組電池】係串 :電池單…並聯連接兩個鋰離子：:::單… 二:：’,池單元2係能並聯連接複數個單電、、也V如第1 亦此以—個單電池來構成電池單元。此外也3。但是， 1雖串聯連接三個電池單元2,但以本發明的Π的叙電池 二且電池亦能串聯連接兩個電池單元或串聯連接進行充電 的電池單元。 千聊運接四個以上 fOBJECT OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION The above-described charging method is capable of charging while controlling the voltage of each battery to the maximum setting. However, since this charging method is such that when one battery (four) rises to the maximum setting, the charging stops, so there is a disadvantage that the battery is fully charged when the electrical characteristics of the battery are inconsistent. This is because the battery that has not risen to the second highest setting is still in a state in which charging can be continued, but charging is stopped. In order to solve the above-mentioned shortcomings, the Ming system provides a capability to control the voltage of each battery to be equal to or lower than the constant voltage, thereby increasing the charging capacity of the assembled battery: (means for solving the problem) In order to achieve the above objectives, the following components are too well prepared. The charging method of the assembled battery of the present invention is carried out by means of an electric current to detect the electric current of each battery of the battery in which a plurality of batteries are connected in series. This charging side is used to charge the battery of the battery/storage of the battery unit to a predetermined sampling period to detect the maximum set voltage, and to use: force, and voltage into the shirt. Charging battery for charging battery 320215 6 200903948 Schedule::2:::: The charging method of the battery pack of the second item is to detect the voltage of each battery unit by pre-疋=take (four) period, and when the battery unit is The voltage exceeds the pre-execution ", and the ^ electric material, reduce the use of: = ΐ:! electric dust' and perform constant ink / constant current charging. Sister patent:: the charging of the battery of the third paragraph of the patent dry circumference The method is a charging method of the assembled battery described in the application, and the charging voltage for charging the assembled battery is reduced at a specific ratio when the user is reduced. The charging method of the assembled battery of the item is the charging method of the assembled battery described in the second item of the patent range, 壬, pool;: the electric* exceeds the maximum set electric power (four), and the lowering is used; the group _ = "the charging voltage, The ratio of lowering the charging voltage is specified according to the voltage difference between the electric ink of the battery unit and the maximum: 疋 voltage, and the ratio at which the charging voltage is lowered is increased when the electric dance difference is large. Tubenfa (4) Patent application (4) The charging method of the battery of the fifth item (the charging method of the battery according to item 2 of the π patent circumference, and when the battery is single, the electricity exceeds the maximum setting) Repeatedly, reduce the charging electric dust used to charge the group of thunder pools and 仃, and according to the internal resistance of the unit that has exceeded the maximum set relocation, the ratio of the charging voltage is lowered, when the battery is 7 〇 internally When the electric resistance is large, the charging voltage is decreased. The charging method of the assembled battery according to claim 6 of the present invention is a charging method of the assembled battery according to the second aspect of the patent, and When the voltage exceeds the maximum set voltage, the charging voltage for charging the group power is also reduced to a battery battery that adds the voltage of each battery unit to 320215 7 200903948 and the calculated electric house value for charging. i -: month, the charging method of the battery of the seventh item of the μ patent range is a ^-take & cycle to detect the electrical frequency of each battery unit, and when the voltage is more than the preset Maximum setting power When, reduce the set current for power, ..., and charge charging and perform a fixed power / constant current charge Ϊ Ϊ = Μ # #利范(4) 8 items of the battery charging method is shown, 1: 围In the charging method of the assembled battery according to the seventh aspect, when the voltage of any of the batteries exceeds the maximum set voltage, the set current for charging the assembled battery is lowered at a specific ratio. The charging method of the battery of the item is a method of charging the battery of the group described in item 7, and when the voltage of the unit exceeds the maximum set voltage, the voltage is reduced for the battery. The set current of the charging is set, and the ratio of the set current is lowered according to the voltage difference between the voltage of the battery unit and the maximum set voltage, and the ratio of the set current is decreased when the voltage difference is large. The charging method of the group battery of the tenth item is the charging method of the assembled battery described in claim 7 of the patent application, and when the voltage of any one of the battery cells exceeds the maximum voltage, the battery is lowered. The set current of charging, and the ratio that lowers the set current is specified according to the maximum set voltage = the internal resistance of the battery unit, and the ratio of the set current is decreased when the internal resistance of the battery unit is large. The method of charging the assembled battery of the eleventh aspect is to change the maximum set voltage according to the temperature of the battery. 320215 8 200903948 The assembled battery of the seventh aspect of the patent application of claim 12 The charging method changes the set current according to the temperature of the battery. The charging method of the assembled battery of the patent application of the present invention is to set the reduced set current as a set current set in multiple stages. (Effect of the invention) f" s The charging method of the assembled battery of the present invention is characterized in that the charge of each battery can be controlled to be equal to or lower than the maximum set voltage, and the charge of the assembled battery is increased. This is because the charging method of the present invention (4) measures the voltage of a battery unit in a predetermined sampling period, and when the voltage k of any one of the battery units is at a maximum voltage, the voltage is reduced for the battery pack. : - - 疋 voltage ' or reduce the set power for constant current charging, and continue to charge / constant current charging of the battery. The figure is a graph showing voltages and charging currents of battery cells of a battery pack that is charged using the charging method of the embodiment of the present invention. If the voltage of the voltage battery unit exceeds the maximum set voltage, the control will be controlled to reduce the charging of the assembled battery: charging power. Since it is controlled to reduce the charging power, the charge of the assembled battery [a decrease] and the charging current is also reduced. Therefore, the high-voltage battery alone: the voltage on the white will decrease due to the decrease of the charging current, and will become lower than the maximum: 6 and the voltage. Since the charging of the battery pack is continued in this state, the voltage battery unit is charged to gradually increase the voltage. When the voltage of the high voltage battery cell exceeds the maximum set voltage again, the charging power is further lowered at this time (U). This state of charge is repeatedly performed at time t3, t4 320215 9 200903948, when the charging current of the assembled battery is reduced to the maximum) the motor h' ends charging. The battery pack that is charged in this state can be constantly controlled so that the voltage of the high-voltage battery unit does not exceed the maximum setting. In fact, although it exceeds a very short time, it is controlled so as not to exceed The maximum setting of the electric dust can fully charge the battery pack. Further, the charging method of the present invention is not controlled so that the charging current is limited to be small when charging is started from the beginning, and the voltage of the high-voltage battery unit is not exceeded, and the setting is large. Since the charging method of the present invention is controlled such that the charging power is reduced when the voltage of the high battery cell exceeds the maximum set voltage, charging can be performed with a large current when charging is initially started, and will be high. The voltage of the voltage battery unit is controlled to be lower than the maximum setting voltage. The battery is fully charged. Therefore, the charging method of the present invention realizes that the assembled battery can be fully charged in a short time, the voltage of the n-voltage battery unit of the assembled battery is controlled to be lower than the maximum set voltage, and the charging capacity of the assembled battery is increased. feature. The charging method of the second aspect of the invention is directed to the fact that when the voltage of the high voltage battery unit exceeds the maximum set electric correction, the charging voltage for charging the battery pack is lowered to limit the charging power to be small. The charging method of claim 7 of the present invention is such that when the voltage of the high voltage battery cell exceeds the maximum set voltage, the control current is reduced to reduce the charging current for reducing the set current for charging the assembled battery. The battery chargers are used almost without exception. (4) The power supply of the phantom power supply converts the input 100V parent stream into DC, and the DC power is transferred to the wheel-in side of the transformer via the switching element. The output side is rectified and turned to 320215 10 200903948 - replaced by DC, and the power source for charging the assembled battery is used to switch the switching element into the conduction knife, electricity = cycle, and the wheel voltage is The output current is stabilized, and the current is stabilized by the switch to switch the switching element to the on/off. The system has a current feedback system == system: The duty cycle of switching the component to on/off. The second invention of the present invention = the right φ +, x > of the second ϋ 十 十 十 十 专利 专利 专利 专利 专利 专利 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷 雷This (4) (4) patent paradigm: can control the current feedback circuit and simply control (4) the pool = f invention t please use the charging method of the third item of the full line to reduce the circumference by a specific ratio Item 8 ^ Electric charging battery. The patent application method of the present invention == electric method is when the high-power battery cell unit (4) exceeds the maximum "Γ特特(四) ratio to reduce the charging of the assembled battery. These charging methods are based on the voltage of the high-voltage battery unit. In the case of electric dust, it will be used to charge the battery pack: low 5/., or reduce the set current by 2〇%. This method can be simplified: circuit configuration, and – prevent high-current battery cells The electric house is abnormally turned to the south to make the battery fully charged. The charging method of the fourth and the seventh item of the patent application scope of the invention is that the voltage of the pool earlier than the maximum set voltage is 'according to the high electric field ^ The voltage difference between the voltage of 疋 and the maximum setting of the electric dust specifically reduces the ratio of the electric voltage or decreases the ratio of the set current, and increases the ratio of the charging voltage or the set current when the voltage difference is large. The electric dust or current used to charge the assembled battery can be adjusted to an optimum value after the voltage of the high voltage battery unit exceeds the maximum set voltage. Therefore, the high voltage battery unit can be prevented while The voltage becomes abnormally high, and the assembled battery is fully charged in a short time. The charging method of the fifth and the tenth aspect of the invention is when the voltage of the high voltage battery unit exceeds the maximum set voltage, according to The internal resistance of the battery cell that has exceeded the maximum set voltage to specify the ratio at which the charging voltage or the set current is lowered, and when the internal resistance of the battery unit is large, the ratio at which the charging voltage or the set current is lowered is increased. After the voltage of the high-voltage battery unit exceeds the maximum set voltage, the voltage or current for charging the battery pack is adjusted to an optimum value, so that the voltage of the high-voltage battery unit can be prevented from becoming abnormally high while The battery pack is fully charged in a short time. (The charging method of claim 6 of the present invention is a charging voltage for charging the assembled battery when the voltage of the high voltage battery unit exceeds the maximum set voltage. Lowering to a battery voltage that is a voltage value obtained by adding the voltage of each battery cell, so that it can be charged The control of the charging voltage is performed in a single manner, and the charging voltage is prevented from being lower than the battery voltage, and charging of the assembled battery can be continued. The charging method of claim 11 of the present invention is changed according to the battery temperature. Comparing the maximum set voltage of the voltage of the high voltage battery unit, the battery is in a low temperature zone, and even when the battery is in the high temperature zone 12 320215 200903948, the battery can be protected while the battery is being charged without causing the battery The performance of the charging method of the twelfth aspect of the invention is changed according to the temperature of the battery to change the set current for charging the battery, so even in the state where the battery is in a low temperature zone or in a high temperature zone, It is also possible to charge the battery while protecting the battery without degrading the battery performance. In the charging method of the third aspect of the invention, the reduced set current is set to a multi-stage set current, which is a simple charging method, and the power supply circuit for performing the charging method is also simple. Low cost circuit. [Embodiment] * Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment shown below is merely an example of a charging method of a battery pack for embodying the technical idea of the present invention, and the charging method of the assembled battery of the present invention is not limited to the method. Moreover, the present specification is not intended to limit the components of the application of the invention to the components of the embodiments. The brother 1 is a block diagram of a charging circuit composed of a plurality of lithium ion secondary batteries 3 of Fuyuan Putian. The charging power supply circuit 4 in the figure 1 is for charging the battery 1 to the battery 1 , and also to the circuit 5 for controlling the charging voltage of the power supply circuit 4 for charging the group capillary 1 . And set the system, the purpose, the 丨々 &&&& heart motor, electric castle detection circuit 6, is to measure the voltage of each battery 3 and private, correct you and out to the control circuit 5; electric-detection circuit 7. The system detects the charging of the battery 3, 'Electrical uM 〇 々丨 々丨 ' L' and > 里度检测, and the circuit 8' detects the temperature of the battery 3 and rotates it. (4) 320215 13 200903948 The battery in the figure] is a string: battery list... connected two lithium ions in parallel:::: single... Two::', pool unit 2 can connect multiple singles in parallel, V, as in the first, also constitutes a battery unit with a single battery. Also 3. However, although three battery cells 2 are connected in series, the battery cells of the present invention can be connected in series by connecting two battery cells in series or in series. Thousands of chats connected to more than four f
L 電源電路4係切換電源。切換電源 ，換將商用電源9的交流_予以整流 -’：予以輪入至變壓器u的一次側。將變壓器a:的f 側的父流輪出予以整* ° 1 一次 的雷Λ輪出用以對組電池1進行充電 •)電力。該切換電源係藉由用以將切換元件Μ = 二=:作週期來控制輸出。增長切換元㈣的 1= 由於㈣=，縮短切換元件10的導通時間以減小輸出。 係對組電池1進較電壓Α電流充電， 路、、以將輸出電Μ的最大值控制為一定之電壓回授電 / 以及用以將輸出電流的最大值控制為一定之電浐 授電路13_連接至切換元们〇的輸入電路14。電壓回^電 路12係經由輸入電路14來控制切換元件1〇的工作週期， 並將輸出電壓的最大值控制成組電池1的最高電壓。例 如用以對串聯連接有三組電池單元2之組電池丨進行充 電々電源電路4係將輸出電壓的最大值設定成12.6V。再 者电々IL回授電路13係經由輸入電路14來控制切換元件 1〇的工作週期’並將輪出電流的最大值控制成用以對組電 14 320215 200903948 池1進行充電的最大電流。 電壓檢測電路6係檢測串聯連接的各個電池單元 电壓’且將檢測到的電㈣換成數位 、 路5。電流檢測電路7係檢測組電池^充電=控制電 檢測到的電流轉換成數位訊號並輸入至二： 1 = 係具備有：儲存電路15，係儲存有電池的 取大汉疋，以及電力降低電路16，係將該儲存電路Η 所儲存的最大設定電堡與電池的電愿進行比較，並控制组 電池1的充電電壓與充電電流。 第2圖係顯示儲存電路15所館存的最大設定電壓。在 此，所謂最大設定電壓係指設定成比進行充電的電池絕對 不能超過的過充電保護電M微還低的電壓。儲存有第2 圖的資料之儲存電路15係將進行充電的電池的溫度區域 區劃成低溫度區域、標準溫度區域、以及高溫度區域，並 儲存各個溫度區域中的最大設定電壓。低溫度區域與標準 溫度區域的低溫交界溫度（丁1；)為1(rc。然而，亦可將此低 溫度區域與標準溫度區域的低溫交界溫度（T1)設定成5艺 至15 C。“準/je_度區域與馬溫度區域的高溫交界溫度（Τ2) 係設定成451。然而，亦可將標準溫度區域與高溫度區域 的南溫父界溫度（T2)設定成40°C至60°C。在溫度比低溫度 區域還低的區域（例如未滿〇。〇以及溫度比高溫度區域還 面的區域（例如超過60°C的區域）中能停止充電。 320215 15 200903948 ^ 在此，進行充電的電池所不能超過的過充電保護電壓 係根據進行充電的電池的溫度區域來設定。低溫度區域與 高溫度區域中的過充電保護電壓係設定成比標準溫度區域 中的過充電保護電壓還低，而低溫度區域中的過充電保護 電壓係設定成比高温度區域中的過充電保護電壓還低。如 弟2圖所不’各個溫度區域中的最大設定電壓係設定成比 在各溫度區域所設定的過充電保護電壓還稍低，例如設定 成還低例如20mV至1 OOmV。亦即，在低溫度區域中用以 ^ 對電池進行充電的第1最大設定電壓（VI)係設定成比在標 準溫度區域中用以對電池進行充電的第2最大設定電壓 (V2)還低。在高溫度區域中用以對電池進行充電的第3最 大設定電壓（V3)係設定成比第2最大設定電壓（V2)還低。 第1最大設定電壓（VI)係設定成比第3最大設定電壓（V3) 還低。然而，第1最大設定電壓（VI)亦可設定成比第3最 大設定電壓（V3)還高。 I 當電池電壓違反期望地超過過充電保護電壓時，會進 行用以將電池串聯連接的充電用切換元件予以關斷等之保 護動作，而停止充電。 由於第2最大設定電壓（V2)係被設定成最適合鋰離子 二次電池之類的電壓值，因此在鈷酸鋰一碳系的鋰離子二 次電池的情形中，係設定成比過充電保護電壓還低20mV 至lOOmV，例如比4.25乂低3〇111乂的4.22¥。然而，在此 種型式的鋰離子二次電池中，第2最大設定電壓（V2)係能 設定成4.2V至4.24V的範圍。第1最大設定電壓（VI)係設 16 320215 200903948 定成比低溫度區域中的過充電保護電壓還低20mV至 .100mV，例如設定成4.03V。第3最大設定電壓（V3)係設 定成比高溫度區域中的過充電保護電壓還低20mV至 10OmV，例如設定成4.13 V。 然而，第1最大設定電壓（VI)與第3最大設定電壓（V3) 亦能根據第2最大設定電壓（V2)來特定。例如，第1最大 設定電壓（V1)係能設定成比第2最大設定電壓（V2)退低 30mV至300mV。此外，當將第3最大設定電壓（V3)設定 ( 成比第2最大設定電壓（V2)還低，且比第1最大設定電壓 (VI)還高時，亦能以第3最大設定電壓（V3)與第2最大設 定電壓（V2)的電壓差會變成第2最大設定電壓（V2)與第1 最大設定電壓（VI)的電壓差的30%至80%之方式來設定第 3最大設定電壓（V3)。 電力降低電路16係根據溫度檢測電路8所檢測的電池 3的溫度並根據儲存於儲存電路15的資料來特定最大設定 I.:電壓。例如’當電池的溫度為20 C時，將最大設定電壓設 定成比4.25V還低，例如設定成4.22V。並且，電力降低 電路16係將電壓檢測電路6所檢測的各個電池單元2的電 壓與最大設定電壓進行比較，當電壓變成最高的高電壓電 池單元的電壓超過最大設定電壓時，會控制成減少用以對 組電池1進行充電的電源電路4的輸出。電力降低電路16 係經由電壓回授電路12或電流回授電路13來控制用以將 切換元件10切換成導通/關斷之工作週期，並控制輸出電 力。 17 320215 200903948 - 當高電壓電池單元超過最大設定電壓時，電力降低電 路16會以特定比率來降低用以對組電池1進行充電的充電 電壓，或以特定比率來降低用以對組電池1進行充電的設 定電流，使充電電力降低。當每次高電壓電池單元2的電 壓超過最大設定電壓時，該電力降低電路16會將充電電壓 降低至例如95%，以減少充電電力。或者，當每次高電壓 電池單元2的電壓超過最大設定電壓時，該電力降低電路 16會將設定電流降低至例如80%，以減少充電電力。然 f 而，該電力降低電路16亦能將用以降低充電電壓或設定電 流的比率設定成50%至99%。 此外，當高電壓電池單元的電壓超過最大設定電壓 時，電力降低電路16係能根據電池單元的電壓（在此為已 將各電池單元的電壓予以加算後之電壓值）與最大設定電 壓（在此為於每一平均單元的最大設定電壓乘上已串聯連 接的單元數（在本實施例中為3)之電壓）的電壓差來特定令 #用以對組電池1進行充電的充電電壓或設定電流降低的比 V， 率，且當電壓差大時增大使充電電壓或設定電流降低的比 率。該電力降低電路16例如可依電池單元電壓與最大設定 電壓間的差成比例地增大使充電電壓或設定電流降低之比 率。 並且，當高電壓電池單元的電壓超過最大設定電壓 時，電力降低電路16係能根據已超過最大設定電壓的電池 單元的内部電阻來特定使充電電壓降低的比率，且當電池 單元的内部電阻大時增大使充電電壓降低的比率。該電力 18 320215 200903948 .降低電路係根據在高電壓電池單元進行充電的狀能下 2充電電綱與充電電流⑴以及用以停止充電的開放電 [㈣，而以以下數學式來進行運算高電壓電池單元的内 Z電阻(R)’並根據經過運算的内部電阻(R)來運算用 或Μ電流降低的比率。例如，電力降低電路16 ^艮據内部電阻（R)成比例地來增大使充電電I 流降低的比率。 冤 (: (Ec- Eo)/l < 帛1圖的充電電路係根據第3圖所示的流程圖，並以 驟=池1進行充電。此流程圖係顯示當高電 [电池早π的電壓（Eeell)超過最大設定電壓（Vmax)時，八 二進行定電壓，定電流充電的充電電壓(叫 =-、。方法。第4圖係顯示根據此流 電池的電壓與電流的特性。 與 仃死電的 雷厥雪、、a ~ _ 第圖中，貝線A係顯示高The L power supply circuit 4 switches the power supply. Switching the power supply, re-recting the AC_ of the commercial power supply 9 -': It is wheeled to the primary side of the transformer u. The parent flow of the f side of the transformer a: is turned out to be a full * ° 1 once. The thunder wheel is used to charge the assembled battery 1 • Power. The switching power supply controls the output by using the switching element Μ = two =: for the period. 1 = of the growth switching element (4) = (4) =, the on-time of the switching element 10 is shortened to reduce the output. The battery 1 is charged with a voltage Α current, and the circuit is controlled to control the maximum value of the output power to a certain voltage, and to control the maximum value of the output current to a certain level. _ is connected to the input circuit 14 of the switching element. The voltage return circuit 12 controls the duty cycle of the switching element 1A via the input circuit 14, and controls the maximum value of the output voltage to the highest voltage of the assembled battery 1. For example, a battery pack 连接 for charging three battery cells 2 connected in series is used. The power supply circuit 4 sets the maximum value of the output voltage to 12.6V. Further, the power-on IL feedback circuit 13 controls the duty cycle of the switching element 1' via the input circuit 14 and controls the maximum value of the wheel-out current to the maximum current for charging the battery 1 of the group 14 320215 200903948. The voltage detecting circuit 6 detects the respective battery cell voltages ' connected in series' and replaces the detected electric power (4) with the digital and path 5. The current detecting circuit 7 detects the assembled battery ^ charging = the electric current detected by the control is converted into a digital signal and is input to the two: 1 = is provided with: a storage circuit 15, which is a large battery that stores the battery, and a power reduction circuit 16 The maximum set price stored in the storage circuit 与 is compared with the battery's wish, and the charging voltage and the charging current of the assembled battery 1 are controlled. The second figure shows the maximum set voltage stored in the storage circuit 15. Here, the maximum set voltage refers to a voltage that is set to be lower than the overcharge protection power M micro which the battery to be charged must not exceed. The storage circuit 15 storing the data of Fig. 2 classifies the temperature region of the battery to be charged into a low temperature region, a standard temperature region, and a high temperature region, and stores the maximum set voltage in each temperature region. The low temperature boundary temperature (D1;) of the low temperature region and the standard temperature region is 1 (rc. However, the low temperature boundary temperature (T1) of the low temperature region and the standard temperature region can also be set to 5 art to 15 C." The high temperature boundary temperature (Τ2) between the quasi/je_degree region and the horse temperature region is set to 451. However, the south temperature parental temperature (T2) of the standard temperature region and the high temperature region can also be set to 40 ° C to 60. °C. The charging can be stopped in areas where the temperature is lower than in the low temperature region (for example, the area that is not full. 〇 and the area where the temperature is higher than the high temperature area (for example, an area exceeding 60 ° C). 320215 15 200903948 ^ The overcharge protection voltage that the rechargeable battery cannot exceed is set according to the temperature region of the battery to be charged. The overcharge protection voltage in the low temperature region and the high temperature region is set to be higher than the overcharge protection in the standard temperature region. The voltage is still low, and the overcharge protection voltage in the low temperature region is set to be lower than the overcharge protection voltage in the high temperature region. The maximum set voltage in each temperature region is not shown in FIG. It is set to be slightly lower than the overcharge protection voltage set in each temperature zone, for example, set to be lower, for example, 20 mV to 100 mV, that is, the first maximum setting for charging the battery in the low temperature region. The voltage (VI) is set to be lower than the second maximum set voltage (V2) for charging the battery in the standard temperature range. The third maximum set voltage (V3) for charging the battery in the high temperature region. The system is set to be lower than the second maximum setting voltage (V2). The first maximum setting voltage (VI) is set to be lower than the third maximum setting voltage (V3). However, the first maximum setting voltage (VI) is also It can be set higher than the third maximum set voltage (V3). I When the battery voltage violates the overcharge protection voltage as expected, the protection operation for turning off the charging switching element for connecting the batteries in series is performed. The second maximum set voltage (V2) is set to be the most suitable voltage value for a lithium ion secondary battery. Therefore, in the case of a lithium cobaltate-carbon lithium ion secondary battery, the setting is set. Overcharged The protection voltage is also lower from 20mV to 100mV, for example, 4.22% lower than 4.25乂 by 3〇111乂. However, in this type of lithium ion secondary battery, the second maximum set voltage (V2) can be set to 4.2V to 4.24V range. The first maximum set voltage (VI) is set to 16 320215 200903948. It is set to be 20mV to .100mV lower than the overcharge protection voltage in the low temperature range, for example, set to 4.03V. The 3rd maximum set voltage (V3) The system is set to be 20mV to 10OmV lower than the overcharge protection voltage in the high temperature region, for example, set to 4.13 V. However, the first maximum set voltage (VI) and the third maximum set voltage (V3) can also be based on the second The maximum set voltage (V2) is specified. For example, the first maximum set voltage (V1) can be set to be lower than the second maximum set voltage (V2) by 30 mV to 300 mV. Further, when the third maximum set voltage (V3) is set to be lower than the second maximum set voltage (V2) and higher than the first maximum set voltage (VI), the third maximum set voltage can also be used ( The third maximum setting is set such that the voltage difference between the V3) and the second maximum set voltage (V2) becomes 30% to 80% of the voltage difference between the second maximum set voltage (V2) and the first maximum set voltage (VI). Voltage (V3) The power reduction circuit 16 specifies a maximum setting I.: voltage according to the temperature of the battery 3 detected by the temperature detecting circuit 8 and based on the data stored in the storage circuit 15. For example, when the temperature of the battery is 20 C The maximum set voltage is set to be lower than 4.25 V, for example, set to 4.22 V. Further, the power reduction circuit 16 compares the voltage of each of the battery cells 2 detected by the voltage detecting circuit 6 with the maximum set voltage, when the voltage becomes When the voltage of the highest high voltage battery cell exceeds the maximum set voltage, it is controlled to reduce the output of the power supply circuit 4 for charging the assembled battery 1. The power reduction circuit 16 is via the voltage feedback circuit 12 or the current feedback circuit 13. Come The system is configured to switch the switching element 10 to an on/off duty cycle and control the output power. 17 320215 200903948 - When the high voltage battery cell exceeds the maximum set voltage, the power reduction circuit 16 is reduced at a specific ratio for The charging voltage of the assembled battery 1 is charged, or the set current for charging the assembled battery 1 is lowered at a specific ratio to lower the charging power. When the voltage of the high-voltage battery unit 2 exceeds the maximum set voltage, the power is generated. The reduction circuit 16 reduces the charging voltage to, for example, 95% to reduce the charging power. Alternatively, the power reduction circuit 16 reduces the set current to, for example, 80% each time the voltage of the high voltage battery cell 2 exceeds the maximum set voltage. In order to reduce the charging power, the power reduction circuit 16 can also set the ratio for reducing the charging voltage or the set current to 50% to 99%. Further, when the voltage of the high voltage battery unit exceeds the maximum set voltage The power reduction circuit 16 can be based on the voltage of the battery unit (here, the voltage of each battery unit has been added) The voltage value is different from the maximum set voltage (here, the maximum set voltage of each averaging unit is multiplied by the voltage of the number of cells connected in series (3 in this embodiment)) The charging voltage of the assembled battery 1 or the ratio V of the set current reduction is increased, and the ratio of decreasing the charging voltage or the set current is increased when the voltage difference is large. The power reduction circuit 16 can be based on, for example, the cell voltage and the maximum set voltage. The difference between the ratios increases the ratio of the charging voltage or the set current. Also, when the voltage of the high voltage battery unit exceeds the maximum set voltage, the power reduction circuit 16 can be based on the internal resistance of the battery unit that has exceeded the maximum set voltage. The ratio at which the charging voltage is lowered is specified, and the ratio at which the charging voltage is lowered is increased when the internal resistance of the battery unit is large. The power is 18 320215 200903948. The lowering circuit is based on the charging of the high-voltage battery unit, the charging circuit and the charging current (1), and the open circuit for stopping the charging [(4), and the operation of the high voltage is performed in the following mathematical formula. The internal Z resistance (R)' of the battery cell is calculated based on the calculated internal resistance (R) or the ratio of the current reduction. For example, the power reduction circuit 16 increases the ratio at which the charging current I decreases in proportion to the internal resistance (R).冤 (: (Ec- Eo) / l < 充电 1 diagram of the charging circuit according to the flow chart shown in Figure 3, and charge = pool 1. This flow chart shows when the high battery [battery early π When the voltage (Eeell) exceeds the maximum set voltage (Vmax), the voltage is fixed at a constant voltage and the charging voltage is fixed at a constant current (called =-, . Method. Figure 4 shows the characteristics of the voltage and current according to the flow battery. With the thunderbolt of the dead power, a ~ _ in the picture, the shell line A shows high
L 電；變化早^ΐ電壓變化，實線顯示其他電池單元的 ==鏈線C係顯示用以對組電池進行定電壓/ 圖電電壓(EC)的變化(對組電池1施加將第4 =充電電壓（Ec)乘上所串聯連接的單元數（本實施例中 流_變化。 t員不進订充電的組電池的充電電 [n = 1之步驟] 溫度檢測電路8係檢測電池的溫度。 [η=2之步驟] 根據檢測出的電池溫度來特定最大設定電愿—ax)。 320215 19 200903948 [η = 3之步驟] 開始進行定電壓/定電流充電。 [η = 4、5之步驟] 判斷充電電流（I)是否已變成比最小電流（Imin)還小。 最小電流（Imin)係設定成在組電池1已充飽電的狀態中的 充電電流。因此，當組電池1的充電電流（I)變得比最小電 流（Imin)還小時，判斷為已充飽電而結束充電。 [η = 6之步驟] 當充電電流（I)未減少達至最小電流（Imin)時，將高電 壓電池單元的電壓（Ecell)與最大設定電壓（Vmax)進行比 較。在充電電流（I)變成最小電流（Imin)或高電壓電池單元 的電壓（Ecell)變成比最大設定電壓（Vmax)還高為止，係重 複n=4與n=6之步驟。 [η = 7之步驟] 當高電壓電池單元的電壓（Ecll)變成比最大設定電壓 (Vmax)還高時，電源電路4會將用以對組電池1進行充電 的充電電壓（Ec)降低至例如95%(在以12.6V進行充電的電 源電路4的情形中約為12V)，以減少用以對組電池1進行 充電的電力，並返回至n=3之步驟。 之後，在充電電流（I)變成最小電流（Imin)以下為止， 係重複η = 3、4、6、7的步驟，且在每次高電壓電池單元 的電壓（Ecell)超過最大設定電壓（Vmax)時，將電源電路4 的輸出電壓之充電電壓（Ec)降低至95%，並對組電池1進 行充電。 20 320215 200903948 - 並且，當以固定比率降低充電電壓時，係將目前的電 池電壓當作已乘算固定比率而算出的充電電壓的下限值。 這是由於當充電電壓與電池電壓逆轉時，會變成無法進行 充電之故。因此，當乘算了固定比率而算出的充電電壓變 成比電池電壓還小時，將充電電壓設定成電池電壓。在此， 所謂電池電壓係與上述的電池單元電壓相同，係指將各電 池單元的電壓予以加算後之電壓值。 又在此，亦可取代上述方式，當每次高電壓電池單元 、 的電壓（Ecell)超過最大設定電壓（Vmax)，而降低充電電壓 (Ec)時，將充電電壓（Ec)設成屬於將各電池單元的電壓予 以加算後之電壓值的電池電壓。 第5圖所示的流程圖係顯示當高電壓電池單元的電壓 (Ecell)超過最大設定電壓（Vmax)時，令用以對組電池1進 行定電壓/定電流充電的設定電流（Ic)降低之充電方法。 第6圖係顯示根據此流程圖進行充電的電池電壓與電流的 t特性。在第6圖中，實線A係顯示高電壓電池單元的電壓 i ' 變化，實線B係顯示其他電池單元的電壓變化，實線D係 顯示進行充電的組電池的充電電流（I)的變化，一點鏈線E 係顯示用以對組電池進行定電壓/定電流充電的設定電流 (Ic)的變化。 [n = 1之步驟] 溫度檢測電路8係檢測電池的溫度。 [η = 2之步驟] 根據檢測出的電池溫度來特定最大設定電壓（Vmax)。 21 320215 200903948 [η = 3之步驟] 開始進行定電壓/定電流充電。 [η = 4、5之步驟] 判斷充電電流（I)是否已變成比最小電流（Imin)還小。 最小電流（Imin)係設定成在組電池1已充飽電的狀態中的 充電電流。因此，當組電池1的充電電流（I)變得比最小電 流（Imin)還小時，判斷為已充飽電而結束充電。 [η = 6之步驟] 當充電電流（I)未減少達至最小電流（Imin)時，將高電 壓電池單元的電壓（Ecell)與最大設定電壓（Vmax)進行比 較。在充電電流（I)變成最小電流（Imin)或而電壓電池早元 的電壓（Ecell)變成比最大設定電壓（Vmax)還高為止，係重 複n=4與n=6之步驟。 [n = 7之步驟] 當高電壓電池單元的電壓（Ecll)變成比最大設定電壓 (Vmax)還高時，電源電路4會將用以對組電池1進行充電 的設定電流（Ic)降低至例如80%，以減少用以對組電池1 進行充電的電力，並返回至n=3之步驟。 之後，在充電電流⑴變成最小電流（Imin)以下為止， 係重複η = 3、4、6、7的步驟，且在每次高電壓電池單元 的電壓（Ecell)超過最大設定電壓（Vmax)時，將電源電路4 的設定電流（Ic)降低至80%，並對組電池1進行充電。 此外，當乘算固定比率後所算出的充電電流值變得比 充飽電檢測電流設定值還小時，由於會變成誤檢測為充飽 22 320215 200903948 —H進行計算的充電電流的下限係設定錢至充飽電檢 測電流設定值。 的雷:者，本發明的充電方法係能檢測溫度並根據所檢測 的電池溫度來特定用以對組電池進行充電的設定電流。第 :圖:=以實現此種充電方法的充電電路。第7圖係 ΙΓΓγ 數㈣離子二次電池3所構成的組電池 充電時的狀態。 電月“電子機益細以進行 ^ ' 、 相在第7圖中，針對與前述第U所示的實_ =要素，係附上相同的符號並省略詳細的說明。 =圖的電子機H2(H)係具備有用以對組電幻進行 疋電M/定電流充電的電源 由Α Γ勒枝抑 吩泛電子機益200係藉 將商用電源9之交流晴至⑽1 正仙·成直流16 v篆20V，*认 丁从 24 . + ^ 〇V並輸入至電源電路24。電.源雷败 為切換電源，並根據用以將切 」：:之工作週期來控制輸出。模組電池i。。传=:/ 控制電源電路24對袓電池〗、隹> + '、，、備有用以 流之控制電路25,並以、電的充電電遷與設定電 並以》皿度檢測電路8來 度，且根據所檢測的電池溫度 、J電池3的溫 充電的設定電流，並輸出至雷早：對組電池1進行 係具備有··館存電路35，。控制電路25 設定電流之資料;以及電力據電池溫度來特定 路％所儲存的資料M 千電路36，係根據該儲存電 特定設定電土_路8所檢測的電池溫度來 疋电机，亚予以輪出至電源電 又采 320215 23 200903948 弟8圖係顯示儲存電路3 5所儲存的資料之一例。如第 8圖所示，儲存電路35係將進行充電的電池的溫度區域區 劃成低溫度區域、標準溫度區域、以及高溫度區域，並儲 存各者的溫度區域的設定電流。低溫度區域與標準溫度區 域的低溫父界溫度（T1)為1 〇 。然而，該低溫度區域與標 準溫度區域的低溫交界溫度（T1)亦能設定成5。(：至15t：。 標準溫度區域與高溫度區域的高溫交界溫度（T2)為451。 然而，標準溫度區域與高溫度區域的高溫交界溫度（τ2)亦 能設定成40 C至60°C。此外，在溫度比低溫度區域還低的 區域（例如未滿0°C )以及溫度比高溫度區域還高的區域（例 如超過60 C的區域）中，係能停止充電。 用以對電池進行充電的設定電流係根據電池的溫度區 域來設定。低溫度區域與高溫度區域中的設定電流係設定 成比標準溫度區域中的設定電流還低，低溫度.區域中的設 定電流係設定成比高溫度區域中的設定電流還低。亦即， (在低溫度區域中用以對電池進行充電的低溫區域設定電流 (11) 係設定成比在標準溫度區域中用以對電池進行充電的 標準設定電流（12)還低。在高溫度區域中用以對電池進行 充電的高溫度區域設定電流（13)係設定成比標準設定電流 (12) 還低。低溫度區域設定電流（π)係設定成比高溫度區域 設定電流（13)還低。然而，低溫度區域設定電流（11)亦能設 定成比高溫度區域設定電流（13)還高。 在第8圖中’係將標準溫度區域中的設定電流設定成 0.7C(能設定成約0.5C以上1.2C以下的範圍），將低溫度 24 320215 200903948 區域中的設定電流設定成〇. 1 c(設定成比在充飽電時會進 行降低的電流之充飽電檢測電流值還大）’將高溫度區域中 的設定電流設定成0.35C(設定成在上述標準溫度區域中的 設定電流的一半左右）。 此外，在各個溫度區域中，關於開始充電時的充電電 流值的初始設定值，亦能根據溫度與剩餘電量、或者溫度 與電壓這兩個參數來決定。例如如以下的表1與表2所示， 能根據所檢測的最低電池電壓（對應電池容量的電池電壓） (或者利用習知技術以模組電池内的微電腦所運算出的剩餘 電量（RSOC(Relative State Of Charge ;相對殘餘電量狀態） 電池容量），來變更各個溫度區域中的設定電流。 在此，例如表1中的A[V]係能設定成3.5V，B[V]係 能設定成4.0V。此外，例如表2中的C[%]係能設定成 40%，D[%]係能設定成80%。 【表1】L electricity; change early ^ ΐ voltage change, solid line shows other battery unit == chain line C system display used to set the battery voltage / map electric voltage (EC) changes (apply to battery 1 will be 4th = charging voltage (Ec) multiplied by the number of units connected in series (flow _ change in this embodiment. t-stamp does not subscribe to charging battery pack charging [n = 1 step] temperature detecting circuit 8 detects battery temperature [Step of η=2] Specify the maximum setting power based on the detected battery temperature—ax) 320215 19 200903948 [Step of η = 3] Start constant voltage/constant current charging. [η = 4, 5 Step] It is judged whether or not the charging current (I) has become smaller than the minimum current (Imin). The minimum current (Imin) is set to a charging current in a state in which the assembled battery 1 is fully charged. Therefore, when the assembled battery 1 is When the charging current (I) becomes smaller than the minimum current (Imin), it is judged that the charging is completed and the charging is completed. [Step of n = 6] When the charging current (I) is not reduced to the minimum current (Imin), Compare the voltage (Ecell) of the high voltage battery unit with the maximum set voltage (Vmax) The step of repeating n=4 and n=6 is repeated until the charging current (I) becomes the minimum current (Imin) or the voltage (Ecell) of the high-voltage battery unit becomes higher than the maximum set voltage (Vmax). [η = 7 Step] When the voltage (Ecll) of the high voltage battery cell becomes higher than the maximum set voltage (Vmax), the power supply circuit 4 reduces the charging voltage (Ec) for charging the assembled battery 1 to, for example, 95% ( In the case of the power supply circuit 4 charged at 12.6 V, it is about 12 V) to reduce the power for charging the assembled battery 1 and return to the step of n = 3. After that, the charging current (I) becomes minimum. The steps of η = 3, 4, 6, and 7 are repeated until the current (Imin) or less, and the output voltage of the power supply circuit 4 is output every time the voltage (Ecell) of the high-voltage battery cell exceeds the maximum set voltage (Vmax). The charging voltage (Ec) is reduced to 95%, and the assembled battery 1 is charged. 20 320215 200903948 - And, when the charging voltage is lowered at a fixed ratio, the current battery voltage is calculated as a multiplied fixed ratio. The lower limit of the charging voltage. This is due to When the electric voltage and the battery voltage are reversed, the charging cannot be performed. Therefore, when the charging voltage calculated by multiplying the fixed ratio becomes smaller than the battery voltage, the charging voltage is set to the battery voltage. Here, the battery voltage is called The voltage is the same as the above-mentioned battery cell voltage, and refers to the voltage value obtained by adding the voltage of each battery cell. Here, in place of the above, when the voltage (Ecell) of the high-voltage battery cell exceeds the maximum setting. When the voltage (Vmax) is lowered and the charging voltage (Ec) is lowered, the charging voltage (Ec) is set to a battery voltage belonging to a voltage value obtained by adding the voltage of each battery cell. The flowchart shown in FIG. 5 shows that when the voltage (Ecell) of the high voltage battery cell exceeds the maximum set voltage (Vmax), the set current (Ic) for constant voltage/constant current charging of the assembled battery 1 is lowered. The charging method. Figure 6 is a graph showing the t characteristics of the battery voltage and current charged according to this flow chart. In Fig. 6, the solid line A shows the voltage i' change of the high voltage battery cell, the solid line B shows the voltage change of the other battery cells, and the solid line D shows the charging current (I) of the assembled battery. Change, a little chain line E shows the change of the set current (Ic) used to perform constant voltage/constant current charging of the assembled battery. [Step of n = 1] The temperature detecting circuit 8 detects the temperature of the battery. [Step of n = 2] The maximum set voltage (Vmax) is specified based on the detected battery temperature. 21 320215 200903948 [Step of n = 3] Start constant voltage / constant current charging. [Step of n = 4, 5] It is judged whether or not the charging current (I) has become smaller than the minimum current (Imin). The minimum current (Imin) is set to a charging current in a state where the assembled battery 1 is fully charged. Therefore, when the charging current (I) of the assembled battery 1 becomes smaller than the minimum current (Imin), it is determined that the charging has been completed and the charging is ended. [Step of n = 6] When the charging current (I) is not reduced to the minimum current (Imin), the voltage (Ecell) of the high voltage battery cell is compared with the maximum set voltage (Vmax). The step of repeating n = 4 and n = 6 until the charging current (I) becomes the minimum current (Imin) or the voltage (Ecell) of the voltage cell early becomes higher than the maximum set voltage (Vmax). [Step of n=7] When the voltage (Ecll) of the high voltage battery cell becomes higher than the maximum set voltage (Vmax), the power supply circuit 4 lowers the set current (Ic) for charging the assembled battery 1 to For example, 80%, to reduce the power used to charge the assembled battery 1, and return to the step of n=3. Thereafter, when the charging current (1) becomes equal to or lower than the minimum current (Imin), the steps of η = 3, 4, 6, and 7 are repeated, and each time the voltage (Ecell) of the high-voltage battery cell exceeds the maximum set voltage (Vmax) The set current (Ic) of the power supply circuit 4 is lowered to 80%, and the assembled battery 1 is charged. In addition, when the fixed charging ratio is multiplied by the fixed charging ratio, the charging current value becomes smaller than the charging detection current setting value, and the lower limit of the charging current calculated by the erroneous detection of the full charge 22 320215 200903948 — H is set. To the full charge detection current set value. The lightning method of the present invention is capable of detecting the temperature and specifying a set current for charging the assembled battery based on the detected battery temperature. Figure: Figure: = Charging circuit to achieve this charging method. Fig. 7 is a view showing a state in which the assembled battery composed of the ΙΓΓ γ number (tetra) ion secondary battery 3 is charged. In the seventh diagram, the same reference numerals are given to the real_= elements shown in the above-mentioned U, and the detailed description is omitted. The electronic machine H2 of the figure is omitted. (H) is equipped with a power supply for charging the group phantom power M / constant current by Α Γ 枝 抑 泛 泛 泛 泛 泛 机 机 200 200 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用 商用v篆20V, *received from 24 . + ^ 〇V and input to the power supply circuit 24. The power source is switched to the switching power supply, and the output is controlled according to the duty cycle for cutting ":". Module battery i. . Transmission =: / control power supply circuit 24 for the battery, 隹 > + ',, the control circuit 25 is used to flow, and the electric charge and set power and the battery detection circuit 8 The degree is based on the detected battery temperature and the set current of the temperature charging of the J battery 3, and is output to the lightning early: the assembled battery 1 is provided with the library circuit 35. The control circuit 25 sets the data of the current; and the data stored in the specific path % according to the battery temperature. The M-th circuit 36 is based on the battery temperature detected by the stored electricity specific setting of the electric_road 8 to drive the motor. Out of the power supply and adopts 320215 23 200903948 The brother 8 shows an example of the data stored in the storage circuit 35. As shown in Fig. 8, the storage circuit 35 divides the temperature region of the battery to be charged into a low temperature region, a standard temperature region, and a high temperature region, and stores the set current of each of the temperature regions. The low temperature parental temperature (T1) of the low temperature zone and the standard temperature zone is 1 〇 . However, the low temperature boundary temperature (T1) between the low temperature region and the standard temperature region can also be set to 5. (: to 15t: The high temperature junction temperature (T2) between the standard temperature zone and the high temperature zone is 451. However, the high temperature junction temperature (τ2) between the standard temperature zone and the high temperature zone can also be set to 40 C to 60 °C. In addition, in a region where the temperature is lower than the low temperature region (for example, less than 0 ° C) and a region where the temperature is higher than the high temperature region (for example, a region exceeding 60 C), charging can be stopped. The set current of charging is set according to the temperature range of the battery. The set current in the low temperature range and the high temperature range is set lower than the set current in the standard temperature range, and the set current in the low temperature area is set to be higher than the set current. The set current in the high temperature region is also low. That is, (the low temperature region setting current (11) used to charge the battery in the low temperature region is set to be higher than the standard for charging the battery in the standard temperature region. The set current (12) is also low. The high temperature region setting current (13) used to charge the battery in the high temperature region is set to be lower than the standard set current (12). The domain setting current (π) is set to be lower than the high temperature region setting current (13). However, the low temperature region setting current (11) can also be set higher than the high temperature region setting current (13). In the figure, the set current in the standard temperature range is set to 0.7C (can be set to a range of about 0.5C or more and 1.2C or less), and the set current in the low temperature 24 320215 200903948 area is set to 〇. 1 c (set to The value of the charge detection current is larger than the current that is reduced when the battery is fully charged. 'Set the set current in the high temperature range to 0.35 C (set to about half of the set current in the standard temperature range) In addition, in each temperature region, the initial setting value of the charging current value at the start of charging can also be determined according to two parameters of temperature and remaining power, or temperature and voltage. For example, Table 1 and Table 2 below. As shown, it can be based on the lowest battery voltage detected (the battery voltage corresponding to the battery capacity) (or the remaining power calculated by the microcomputer in the module battery using conventional techniques (RSOC (Relativ) e State Of Charge; relative battery state) Battery capacity), to change the set current in each temperature zone. Here, for example, A[V] in Table 1 can be set to 3.5V, B[V] can be set. In addition, for example, C[%] in Table 2 can be set to 40%, and D[%] can be set to 80%. [Table 1]
電池電壓 低溫度區域 標準溫度區域 而溫度區域 /未滿A(V) 0.7C 0.7C 0.7C A(V)以上未滿B(V) 0.35C 0.7C 0.7C 一 B(V)以上 0.1C 0.35C 0.35C 【表2】Battery voltage low temperature zone standard temperature zone and temperature zone / less than A (V) 0.7C 0.7C 0.7CA (V) or more less than B (V) 0.35C 0.7C 0.7C - B (V) or more 0.1C 0.35C 0.35C [Table 2]
111餘電量(RSOC) 低溫度區域 標準溫度區域. 南溫度區域 <未滿c(%) 0.7C 0.7C 0.7C ""57%)以上未滿D(%) ~^35C 0.7C 0.7C / DC%)以上 0.1C 0.35C 0.35C 320215 25 200903948 採用此種設定電流的主要原因如下。這是為了防止在 電池容量大的情形中，當電池溫度低時，會因為大電流使 電池電壓上升，而超過在第2圖中所說明的最大設定電壓 與過充電保護電壓之故。 電力降低電路36係根據儲存於儲存電路35的資料與 電池溫度來特定用以對組電池1進行充電的設定電流。電 力降低電路36會根據所檢測的電池溫度區域，將設定電流 特定成低溫度區域設定電流（I1 )、標準設定電流（12)、以及 ' 高溫度區域設定電流（13)中的其中一種設定電流。電力降 低電路36係將用以特定設定電流的訊號輸出至電源電路 24的電流回授電路33。 ) ( 電源電路24係檢測從控制電路25所輸入的訊號，以 控制輸出電流的最大值。電源電路24的電流回授電路33 係構成為能將作為輸出電流的最大值_切換成由低溫度區域 設定電流（I1 )、標準設定電流（12)、以及南溫度區域設定電 f 流（13)所構成的三階段的設定電流之構造。亦即，電源電 - 路24係能切換成預先設定成多階段的設定電流。此種能切 換成設定為多階段的設定電流之電源電路24，其構造較簡 單且較為便宜，且利用此種電源電路之充電方法也較為簡 便。在該電源電路24中，當用以特定設定電流為低溫度區 域設定電流（11 )、標準設定電流（12 )、以及尚溫度區域設定 電流（13)中的任一種設定電流之訊號從電力降低電路36輸 入至電流回授電路33時，電流回授電路33會經由驅動電 路34來控制切換元件10的工作週期，並將輸出電流的最 26 320215 200903948 -大值控制成用以對組電池！進行充電的設定電流。亦即， 該電源電路24的電流回授電路33係將輸出電流的最大值 ㈣成低溫度區域設定電流（11)、構準設定電流（12)、以及 面溫度區域設定電流（13)中的杯· 、的任〜種設定電流，並對組電 池進行充電。 上述的控制電路25係檢測開餐充電時的電池溫度，並 根據該所檢測的電池溫度來特定用以對組電心進行充電 的設定電流並輸出至電源電路24。 ， 電源電路24係檢測從 1 控制電路25所輸入的訊號，一邊 现 透將輪出電流的最大值控制 成經過特定的設定電流，一邊對， ^ Τ、、'且電池進行充電。並且， 控制電路25亦在組電池1的充雷 ^ ^ 电中檢測電池溫度，並根據 所私測的電池溫度來特定設定番 0 电流並輸出至電源電路 24。電源電路24係檢測從控制電 收认，办— 电略25所輸入的訊號，並 將輸出電流的最大值控制成經過牲〜 當開始充電時根據電池溫度而予：的设定電流。然而’ 。中根據電池溫度而予以特定的設的設定電流與充電 低的設定電流並繼續進行充電。例如1同時’會選擇較 如，在開始充電時，電 池溫度處於標準溫度區域的電池會將設定電流作為標準咬 定電流（12)而開始進行充電。之後，當持續進行充電而使 電池溫度上升達至高溫度區域時，會將設定電流切換成高 溫度區域設定電流（13)並繼續進行充電。這是由於將高溫 度區域設定電流（13)設定成比標準設定溫度（12)還:: 故。此外，在開始充電時，電池溫度處於低溫度區域的電 池會將設定電流作為低溫度區域設定電流（j丨）而開始進行 320215 27 200903948 充包之後即使隨著持續進行充電使電池溫度上升達至標 準溫度區域時，亦會繼續進行充電而不會將設定電流切換 成標準設定電流（12)。這是由於將低温度區域設定電流⑽ ^成比標率設定電流⑼還低之故。如此，這種將用以 對電池進行充電的設定電流優先 &疋成根據開始充電時的 ^ ^ ^ ^ 很據充電中的電池溫度而 特疋的S又疋電流中較低的設定電流 P方丨卜带4罇4 〈方法’能一邊確實地 ，防止危險的狀態一邊安全地進行充電。 ' 再者，控制電路25中的電力降侬 玖Μ故冲六，n m電路36係將儲存電 路35所儲存的最大設定電壓與電池 組電池1的充電電流。電力降低電路3；；進行比較’以控制 元超過最大設定電壓時，會降低用以對糸當高電壓電池單 的設定電流，使充電電力降低。此電力且電池1進行充電 電壓電池單元的電壓超過最大設定電墨护低電路3 6係當南 出電流的最大值之設定電流降低至低〜:，會將用以將輸 (輸出至電源電路24的電流回授電路33^的電流值之訊號 設定電流（Ic)為標準設定電流（12)時，將如’當目前的 至高溫度區域設定電流(13)，當目前的，&弋電/瓜(IC)降低 ^ ^ ^ * 疋電流（Ic)為高溫 度S域設定電流（13)時，將設定電流（Ic)降 設定電流（II)。亦即，電源電路24係被和^至低溫度區域 、真妝 _ 上例電路25控制， 一邊降低用以進行充電的設定電流，—渗祕 進行充電。 逯、、诚續對組電池i 亦即，當南電壓電池單元超過最大 夂戈電壓時，降低 用以斟組電池1進行充電的設定電流，龙 " 予員先根據電池的 320215 28 200903948 溫度來變更該已降低的設定電流，以作為經過設定的設定 電流。換言之，此種設定電流係設定為多階段設定的設定 電流。 在上述的設定電流中，雖設定成三階段的設定電流 (II)、（12)、（13)，但亦可設定成超過三階段之多階段的設 定電流，即當高電壓電池單元的電壓超過該時的電池溫度 中的最大設定電壓時，會將輸出電流的最大值之設定電流 降低至低一階的電流值。 再者，控制電路25係在繼續對組電池1進行充電的狀 態下，係以根據在組電池1的充電中所檢測出的電池温度 的温度區域來特定的設定電流、以及高電壓電池單元的電 壓超過最大設定電壓而被降低的設定電流之中較低一方的 設定電流為優先，而繼續以該設定電流來進行組電池的充 電。 第7圖的充電電路係根據第9圖所示的流程圖，並以 下述步驟來對組電池1進行充電。如該流程圖所示，充電 電路係當高電壓電池單元的電壓（Ecell)超過最大設定電壓 (Vmax)時，會令用以對組電池1進行定電壓/定電流充電 的設定電流（Ic)降低並進行充電。第10圖係顯示根據此流 程圖進行充電的電池電壓與電流的特性。在第10圖中，實 線A係顯示高電壓電池單元的電壓變化，實線B係顯示其 他電池單元的電壓變化，實線D係顯示進行充電的組電池 的充電電流（I)的變化，一點鏈線E係顯示用以對組電池進 行定電壓/定電流充電的設定電流（Ic)的變化。 29 320215 200903948 ' [n= 1之步驟] 溫度檢測電路8係檢測電池的溫度。 [η = 2之步驟] 控制電路25係根據檢測出的電池溫度來特定最大設 定電壓（Vmax)。 [η = 3之步驟] 控制電路25係根據檢測出的電池温度來特定用以對 電池進行充電的設定電流（Ic)，並予以輸出至電源電路 (24。控制電路25係根據儲存於儲存電路的資料以及電池溫 度來特定設定電流（Ic)。如第8圖所示，設定電流（Ic)係根 據所檢測出的電池的温度區域來特定成低溫度區域設定電 流（II)、標準設定電流（12)、以及高溫度區域設定電流（13) 中的任一個設定電流。 [n = 4之步驟] 開始對組電池1進行充電。電源電路24係一邊將輸出 / 電流的最大值控制在以η = 3之步驟所特定的設定電流 (Ic)，一邊對組電池1進行定電壓/定電流充電。 [η = 5、6之步驟] 判斷充電電流⑴是否已變成最小電流（Imin)以下。最 小電流（Imin)係設定為組電池1在充飽電狀態中的充電電 流。因此，當組電池1的充電電流（I)變成最小電流（Imin) 以下而被判斷為已充飽電時，會結束充電。 [η = 7之步驟] 當充電電流⑴未減少達至最小電流（Imin)時，控制電 30 320215 200903948 • 路25會在此步驟中將高電壓電池單元的電壓（Ecell)與最 大設定電壓（Vmax)進行比較。 [η = 8之步驟] 當高電壓電池單元的電壓（Ecell)在最大設定電壓 (Vmax)以下時，在此步驟中，溫度檢測電路8會檢測電池 的溫度，並根據所檢測的電池溫度來特定設定電流（Ic)。 [n= 9之步驟] 控制電路25係根據目前的設定電流（Ic)與在η = 8之 ( 步驟所特定的設定電流（Ic)來特定隶新的設定電流（Ic)。例 如’當目如的設定電流為在η = 3的步驟中所特定的設定電 流（Ic)時，會根據在η = 8的步驟中所特定的設定電流（Ic) 與在η = 3的步驟中所特定的設定電流（Ic)來特定最新的設 定電流（Ic)。控制電路25會在目前的設定電流（Ic)與在η =8的步驟中所特定的設定電流（Ic)相等時，將此設定電流 作為最新的設定電流（Ic)，並予以輸出至電源電路24。再 ,者，控制電路25係在目前的設定電流與在n= 8的步驟中 所特定的設定電流為不同時，將較低一方的值作為最新的 設定電流（Ic)，並予以輸出至電源電路24。 [n = 10之步驟] 電源電路24係一邊將輸出電流的最大值控制成在前 面的步驟中所特定的最新設定電流（Ic)，一邊繼續對組電 池1進行充電。之後，返回η == 5之步驟。 [n = 11之步驟] 當高電壓電池單元的電壓（Ecell)變成比最大設定電壓 31 320215 200903948 (Vmax)還高時，在 是否已降低達至此步驟中’會判斷目前的”電流（Ic) (η)。當目前的〜低的没定電流之低溫度區3或設定電流 等時，由於無法=電流⑽與低溫度區域設^流⑴)相 驟並結束充電。低設定電流⑽，故前進至η=6的步 [n = 12之步驟] 田目剛的设定電流（Ic)與低溫度區域設定 f «=’係_成目前的設定電流⑽比發度區 疋電流（11)逛大，將設定電流（Ic)降低達至低—階的電流 值。亦即’當目前的設定電流(Ie)為標準設定電流(12)時， 將設定電流（Ic)降低至高溫度區域設定電流，當目前的設 定電流（Ic)為高溫度區域設定電流（13)時，將設定電流 降低至低溫度區域設定電流（11)。控制電路25係將已降低 一階的設定電流作為最新的設定電流（Ic).+，並予以輸出至 電源電路24。之後’前進至n= 10的步驟，繼續對組電池 (」1進行充電。 以上的實施例雖檢測電池的電壓，並使電池的電壓上 升達至最大設定電壓以減少電流，但係將電流的設定值作 為標準溫度區域、低溫度區域、以及高溫度區域的設定電 流。由於此模組電池係將用以根據電池溫度來控制電流而 予以變化的電流值、以及使電池的電壓上升而予以變化的 電流值切換成相同的設定值，故能簡單地製作電路構成。 此外，能作成根據電池的溫度區域將用以對電池進行充電 的設定電流切換成低溫度區域、標準溫度區域、以及高溫 320215 32 200903948 度區域之三階段之構造H本發㈣充電方法亦能將 根據電池溫度來特定的設定電流作成二階段，或 階段以上。 x 再者，模組電池可為非將電池的電壓或電流轉換成數 位訊娩者，而是如帛11圖的電路圖所示，具有差動放大 盗’將用以檢測電池的電麗或電流之檢測訊號與基準電堡 作比較’而能控制電流或電壓。第u圖的模組電池為了檢 測充電中的電池53的電壓以防止過充電，係具備有最大電 d則電路6〇與设定電壓檢測電路7〇、以及用以將美準 電壓輸出至最大電壓檢測電路6G與妓㈣檢測電路、 之基準電壓電路81、82。 由於第11圖的模組電池係串聯連接兩個單電池來作 為組電池51，故為了檢測正側的單電池53與負側的單電 池53的電壓，最大電㈣測電路6()係具備有兩组差動放 大^i。在負侧的差動放大器仙中，於負側的輸入端子 t係輸人有來自基準電M電路82的基準電產，且經由電 G電路62將正側的輸入端子連接至負侧的單電池幻。該 ^側的差動放大器61B係當負側的單電池53的電麗超過 取大電屋時，會輪出最大電壓訊號。於正側的差動放大器 61A中，於正側的輸入端子係輸入有來自基準電壓電路μ 的基準電壓’且經由電阻分壓電路62將負側的輸入端子連 接至正側的單電池53。該正側的差動放大器61A係當正側 的車電池53的電壓超過最大電壓時，會輸出最大電壓訊 \在例如將單電池53設為鐘離子二次電池之模組電池的 320215 33 200903948 .情形中，這些差動放大器όΐ係以正侧與負側的單電池53 超過4.25 V時會輸出最大電壓訊號之方式來設定電阻分壓 電路62與基準電壓。 正側的差動放大器61A與負側的差動放大器61B的輸 出係輸入至0R(「或」閘）電路63。OR電路63係當任一 個單電池53超過最大電壓（在鋰離子二次電池的情形中為 4.25 V)時會輸出最大電壓訊號，並將此訊號輸出至充電器 f (未圖示）以停止充電。並且，如上所述，亦能根據此訊號 "來減少充電電壓或充電電流。 設定電壓檢測電路70係具備有用以檢測電池53的過 充電之充電控制用的設定電壓檢測電路7〇A、以及用以檢 測過放電之放電控制用的設定電壓檢測電路。充電控 制用的設定電壓檢測電路7〇A為了檢測正侧的單電池幻 與負側的單電池53的設定電壓，係具備有兩組差動放大器 1在負側的差動放大器71B巾，於負側的輸入端子係輸 (入有來自基準電壓電路82的基準電壓，且經由分壓比變更 電路72將正側的輸入端子連接至負侧的單電池53。該負 ，的差動放大器71B係當負側的單電池53的電壓超過設 疋電堡時，會輸出電壓訊號。在正側的差動放大器Μ中， 於正側的輸入端子輸入有來自基準電壓電路81的基準電 壓，且經由分麗比變更電路72將負側的輸入端子連接至正 ^的單電池53。該正側的差動放大器71八係當正側的單電 ，53的電壓超過設定電壓時，會輸出電壓訊號。 分壓比變更電路72係變更用以將單電池％的電壓予 320215 34 200903948 以分壓之比率，並予以輸入至差動放大器71。因此，控制 充電的差動放大器71係能檢測第丨設定電壓、以及電壓設 定成比第1設定電壓還低的第2設定電壓，並輸出電壓訊 號。第1設定電壓係能作為例如標準溫度區域中的最大# 定電壓（在第2圖中為4.22V)，第2設定電壓係能作為高= 度區域或低溫度區域中的最大設定電壓（在第2 4.03V 或 4.13V)。 ’、、、 〆 帛11圖的分壓比變更電路72係以切換元件75將分壓 《電阻74的局部予以短路，以變更分壓比。帛u圖的分壓 比變更電路72係由三個電阻器74A的串聯電路所構成， 且將切換7G件75並聯連接至—個電阻器74A。切換元件 75係將-個電阻器74A的兩端予以短路以調整分壓比。圖 中的分壓比變更電路72係在將切換元件72切換成關斷的 狀態下將分比虔減少’在將切換元件75切換成導通的狀態 下調大分壓比。亦即，能將切換元件75 士刀換成導通/關 《：断以夂更輸入至差動放大器7 j之單電池53的電壓的分 慶比。分壓比變更電路72係以例如在將切換元件乃切換 成導通的狀態下，差動放大器71會根據第1設定電壓來輸 出電壓，號’且在將切換元件75⑽成關斷的狀態下，差 動放大器71會根據第2設定電壓來輸出電壓訊號之方式， 來設定電阻器74A的電性電阻。 由於在充電控制用的設定電屋檢測電路7〇A的輸入侧 設定分麗比變更電路72，因此充電控制用的設定電壓檢測 電路70A 3才双;則第】設定電壓與第2設定電壓，並輸出電 320215 35 200903948 ‘壓訊號。在此，藉由分屡比變更電路72設定成第】或第2 設定電屢。充電控制用的設定電堡檢測電路7〇a係將切換 元件75十刀換成關斷’檢測較低的第2設定電墨並將輸出設 為「High」S，將切換元件75切換成導通，以檢測較高的 第1設定電壓。 用以檢測電池53的過充電之充電控制用的設定㈣ 檢測電路70A係具備有連接於電池53的負側之負侧的差 動放大1 71B、以及連接於電池53的正側之正側的差動放 大器71A。在負側的差動放大器71β中，於負側的輸入端 子係輸入有來自基準電壓電路82的基準電壓，且經由分麗 比變更電路72將正側的輸人端子連接至負側的單電池… 負側的差動放大器71B係、當負側的單電、池53的電壓 超過設定電壓時’會輸出顯示此狀態的第2輸出訊號。由 於此第2輸出訊號為用以顯示電池53的電壓已超過設定電 壓之汛號’因此能根據此訊號來關斷與組電池51串聯設置 的充電用切換元件（未圖示）’並減少充電電壓或充電電 μ由於第2 5又定電壓係被設定成例如高溫度區域或低溫 度區域中的最大設定電壓（在第2圖中為4〇3¥或4ΐ3ν)， 因此當電池53的溫度處於高溫度區域或低溫度區域時，會 根據此訊號而停止充電。第2輪出訊號係將切換元件Μ 切換成導通以增大分壓比變更電路72的分壓比，使差動放 大器71的輸入電塵降低。因此，差動放大器7Η系成為不 會輸出第2輸出訊號的狀態。處於標準溫度區域中的電池 不會根據第2輸出訊號而停止充電，故會繼續進行充電使 320215 36 200903948 ，電！上升。當電池53_超過第"史定電塵時，差動放 ^ 71會輪出第1輸出訊號作為已超過第1設定電壓的訊 二訊號係被設定成例如標準溫度區域的最 此會根據此訊號會在 正在進灯充電的電池53的充電停止。 入有動放大器7M中’於正側的輸入端子係輪 有末自基準電屢電路82的基準電壓，並經由分麗 '路72將負側的輪入端子連接於正側的單電池μ。該正 側的差，放大器71Α係與負側的差動放大器⑽相同，當 電：3的電麼超過第2設定電壓時會輪出第2 以㈣：π:/過第1設定電壓時會輸出第1輸出訊號， 乂控制電池5 3的充電。 ^側的差動放大器71Α與負侧的差動放大器抑的輸 = 電路73。⑽電路73係當任—個單電㈣ 表口^ i设定電虔，且亦超過第2設定電壓時，輸出用以 1或第2的設^電壓之訊號，以控制電池53 二充笔。由於串聯連接複數個單電池53的模組電池會於任 :電池53的電壓超過最大設定時停止充電，因此當 電:Γ池53的電壓超過第1或第2設定㈣時會停止充 換-杜即’根據此汛號將與組電池51串聯而設的充電用切 、兀件（未圖示）予以關斷，以停止充電。 =以檢測電池53的過放電之放電控制用的設定電壓 動 係具備有連接於電池53的負侧之負側的差 „„76Β Μ及連接於電池53白勺正側之正側的差動放 320215 37 200903948 大盗76A。在負侧的差動放大器76B巾，於正側 子輸入有來自基準電壓電路82的基φ電壓，並經由^ = 變更電路77將負側的輸入端子連接於負側的單電池5； 在正側的差動放大器76Α中，於負側的輸入端子輪步 自基準電遷電路81的基準㈣，並經由㈣比變更電路 將正側的輸入端子連接於正側的單電池53。 用以控制過放電的放電控制用的設 =亦經由分屋比變更電路77將單電池53的電 70Β:，l因此，該放電控制用的設定電屢檢測電路 月匕以兩個設定電壓來控制電池53的放電。此外 =備有用以檢測負側的電池53的電壓之負側的差動放 \76Β、以及用以檢測正側的電池的電壓之正側的差動 命^ ?6Α，因此能將負側與正側的任一個電池53的電壓 …又疋電Μ進行比較，而檢測出任-個電池53 .的電舞變成 二定；壓還低之情況’而控制放電。亦即，根據此訊號 …”且電池51串聯而設的放電用切換元件（未圖示）予以關 斷’以停止放電。 山第12圖的電路圖所示的模組電池300係具有正負的輸 端子97與通讯端子98。該模組電池係從通訊端子％輸 恭=…電池93的溫度之電壓訊號。該模組電池係具備有： 藍核測包路94 ’係檢測各個電池93的電壓；溫度感測 …：5、@係核測電池93的溫度；以及運算電路96，係運算 u概度感測為95與電壓檢測電路94所輸入的訊號，並 别出對應電：4 93的溫度之電壓訊號。如第13圖所示，運 38 320215 200903948 -算電路96係根據從溫度感測器95所輸入的溫度訊號來檢 測電池93的溫度，以判斷電池93的溫度處於低溫以下溫 度區域、低温度區域、標準溫度區域、高溫度區域、以及 冋溫以上溫度區域中的任一個溫度區域。第丨3圖係顯示與 上述第2圖相同的内容，最大設定電壓的電壓值係能適當 地逢更。此外’第13圖的縱軸係顯示最大設定電壓，並顯 示來自各個溫度區域中的通訊端子9 8的輸出電壓。 ，當進行充電的電池93的溫度處於低溫度區域的狀態 、時’運算電路96係判斷電池93的電壓是否比第1最大設 定電壓（VI)(在第13圖中為4.03V)還高，當電池93的溫度 比第1最大設定電壓（VI)還高時，會從通訊端子98輸出相 當於低溫度區域的電壓訊號（在第13圖中為3 V)。當電池 93的溫度處於標準溫度區域的狀態時，運算電路96係判 斷電池93的電壓是否比第2最大設定電壓（V2)(在第13圖 中為4.22V)還高，當電池93的電壓比第2最大設定電壓 〇 (V2)還高時，會從通訊端子98輸出相當於標準溫度區域的 電壓訊號（在第13圖中為5V卜當電池93的溫度處於高溫 度區域的狀態時，運算電路96會判斷電池93的電壓是否 比第3最大設定電壓（V3)(在第13圖中為4·13 V)還高，當 電池93的溫度比第3最大設定電壓（V3)還高時，會從通訊 端子98輸出相當於高溫度區域的電壓訊號（在第13圖中為 4V)。當電池93的溫度處於低溫以下溫度區域的狀態時， 運算電路96會從通訊端子98輸出相當於低溫以下溫度區 域的電壓訊號（在第13圖中為iv)，當電池93的溫度處於 39 320215 200903948 • 高溫以上溫度區域的狀態時，會從通訊端子98輸出相當於 高溫以上溫度區域的電壓訊號（在第13圖中為2V)。 連接模組電池300的電子機器400係能根據從一個通 訊端子98所輸入的電壓訊號，來檢測各個電池93的電壓 是否已超過設定電壓，且檢測出電池93的溫度處於低溫以 下溫度區域、低溫度區域、標準溫度區域、高溫度區域、 以及高溫以上溫度區域的哪個溫度區域中。並且，在電池 93中，當任一個高電壓電池單元超過最大設定電壓時，能 ( 停止電池的充電、降低充電電力和充電電壓、或者降低用 以進行充電的設定電流。 【圖式簡單說明】 第1圖係顯示本發明一實施例的組電池的充電方法所 使用的充電電路的一例之方塊圖。 '第2圖係顯示相對於電池溫度之最大設定電壓之曲線 圖。 ^ 第3圖係顯示本發明一實施例的組電池的充電方法之 流程圖。 第4圖係顯示以第3圖所示的步驟進行充電的電池電 壓與電流的特性之曲線圖。 第5圖係顯示本發明另一實施例的組電池的充電方法 之流程圖。 第6圖係顯示以第5圖所示的步驟進行充電的電池電 壓與電流的特性之曲線圖。 第7圖係顯示本發明的另一實施例的組電池的充電方 40 320215 200903948 法所使用的充電電路的一例之方塊圖。 f 8圖係顯示相對於電池溫度之設定電流的曲線圖。 、第S係頁示本喬明的另一實施例的組電池的充電方 法之流程圖。 +第10圖係顯示以第9圖所示的步鄉來進行充電的電池 电麼與電流的特性之曲線圖。 ㊉11圖係顯示心檢測組電池的過充電或過放電之 电路的一例之電路圖。 第12圖係顯示用以判斷電池溫度的溫度區域並進行 則之模組電池的一例之方塊圖。 〇3圖係顯示相對於電池溫度之設定電壓的-例之 1、 主要元件符號說明 3、53、 組电 93電池 2 4 ' 24 5、25 7 控制電路 6、94 / 9 11 電流檢測電路 8 商用電源 10、75 13' 33 變壓器 12 電流回授電路 14 15： 35 2〇 儲存電路 16 ' 36 60 AC配接器 r=t 34 61、71 敢大電壓檢測電路 ' 76差動放大器 電池單元 電源電路 電壓檢測電路 溫度檢測電路 切換元件 電壓回授電路 輸入電路 電力降低電路 驅動電路 320215 41 200903948 f. 61A 、71A、76A 正 侧差 動放大器 61B 、71B 、 76B 負 侧差 動放大器 62 電阻分壓 電 路 63 > 73 OR電路 70 設定電壓 檢測電 路 70A 充電控制 用 的設定電 壓檢測電 路 70B 放電控制用 的設定電 壓檢測電 路 72 ' 77 分壓比變 更 電路 74 分壓電阻 74A 電阻 器 81、 82 基準電壓 電 路 95 溫度 感 測器 96 運算電路 97 輸出 端 子 98 通訊端子 100 、300 模 組 電池 200， * 400 電子機 器111 excess electricity (RSOC) low temperature zone standard temperature zone. South temperature zone < less than c (%) 0.7C 0.7C 0.7C ""57%) above D (%) ~^35C 0.7C 0.7 C / DC%) above 0.1C 0.35C 0.35C 320215 25 200903948 The main reasons for using this set current are as follows. This is to prevent the maximum set voltage and the overcharge protection voltage explained in Fig. 2 from being increased due to a large current when the battery temperature is low in the case where the battery capacity is large. The power reduction circuit 36 specifies a set current for charging the assembled battery 1 based on the data stored in the storage circuit 35 and the battery temperature. The power reduction circuit 36 specifies the set current as one of the low temperature region setting current (I1), the standard setting current (12), and the 'high temperature region setting current (13) according to the detected battery temperature region. . The power reduction circuit 36 outputs a signal for a specific set current to the current feedback circuit 33 of the power supply circuit 24. (The power supply circuit 24 detects the signal input from the control circuit 25 to control the maximum value of the output current. The current feedback circuit 33 of the power supply circuit 24 is configured to be able to switch the maximum value _ as the output current to be low temperature The configuration of the three-stage set current composed of the area setting current (I1), the standard setting current (12), and the south temperature area setting electric f stream (13). That is, the power supply circuit 24 can be switched to a preset setting. The multi-stage set current can be switched to the power supply circuit 24 set to a multi-stage set current, which is simpler and cheaper, and the charging method using the power supply circuit is also relatively simple. In the case where the specific set current is the low temperature region setting current (11), the standard setting current (12), and the temperature range setting current (13), the signal is input from the power reduction circuit 36 to the current. When the circuit 33 is returned, the current feedback circuit 33 controls the duty cycle of the switching element 10 via the drive circuit 34, and outputs the current of the most 26 320215 200903948 - large The value is controlled to a set current for charging the assembled battery! That is, the current feedback circuit 33 of the power supply circuit 24 sets the maximum value (4) of the output current to a low temperature region setting current (11), a configuration setting current. (12) and the surface temperature region set the current of any one of the cups in the current (13), and charge the assembled battery. The control circuit 25 described above detects the battery temperature at the time of the meal charging, and according to the The detected battery temperature specifies a set current for charging the group core and outputs it to the power supply circuit 24. The power supply circuit 24 detects the signal input from the 1 control circuit 25, and maximizes the current of the wheel. The value is controlled such that a certain set current is passed, and ^ Τ , , ' and the battery is charged. Moreover, the control circuit 25 also detects the battery temperature in the charging of the assembled battery 1 and according to the measured battery. The temperature is set to a specific current of 0 and is output to the power supply circuit 24. The power supply circuit 24 detects the signal input from the control power, and the signal input is 25, and the maximum value of the output current is controlled. When the battery is started, the current is set according to the battery temperature. However, the setting current specified by the battery temperature is set to a low setting current and the charging is continued. For example, 1 The selection is similar. When the charging is started, the battery whose battery temperature is in the standard temperature region starts to charge with the set current as the standard nip current (12). After that, when the charging is continued to raise the battery temperature to the high temperature region, The set current is switched to the high temperature zone setting current (13) and charging continues. This is because the high temperature zone setting current (13) is set to be higher than the standard set temperature (12): Therefore, at the beginning of charging When the battery whose battery temperature is in the low temperature range starts the set current as the low temperature region setting current (j丨), 320215 27 200903948 After the charging, even if the battery temperature rises to the standard temperature range as the charging continues Charging will also continue without switching the set current to the standard set current (12). This is because the low temperature region setting current (10) is lower than the calibration rate setting current (9). In this way, the set current that will be used to charge the battery is prioritized & 根据 is based on the ^ ^ ^ ^ at the start of charging, which is characteristic of the battery temperature during charging, and the lower set current P of the current. In the case of a dangerous state, it is safe to charge while being safe. Further, the power drop in the control circuit 25 is rushed to six, and the n m circuit 36 is the maximum set voltage stored in the storage circuit 35 and the charging current of the battery cell 1. The power reduction circuit 3; compares 'when the control element exceeds the maximum set voltage, the set current for the high voltage battery cell is lowered, and the charging power is lowered. This power and the battery 1 is charged. The voltage of the battery unit exceeds the maximum setting. The current setting circuit of the current is reduced to a low value of ~:, which will be used to output (output to the power supply circuit). When the current setting signal (Ic) of the current feedback circuit of the 24 is the standard setting current (12), the current (13) will be set as the current high temperature region, when the current, & / melon (IC) lowers ^ ^ ^ * When the current (Ic) is set to a high temperature S domain (13), the set current (Ic) is set to a current (II). That is, the power supply circuit 24 is connected to ^ To the low temperature area, the real makeup _ the above example circuit 25 control, while reducing the set current for charging, osmosis for charging. 逯,, Continuation of the battery i, that is, when the South voltage battery unit exceeds the maximum 夂When the voltage is low, the set current for charging the battery 1 is lowered, and the user first changes the reduced set current according to the temperature of the battery 320215 28 200903948 as the set current that has been set. In other words, this Set current system The set current is set in multiple stages. In the above set current, although the three-stage set currents (II), (12), and (13) are set, the set current may be set to be more than three stages. That is, when the voltage of the high voltage battery cell exceeds the maximum set voltage of the battery temperature at that time, the set current of the maximum value of the output current is lowered to the current value of the lower first order. Furthermore, the control circuit 25 continues. In the state in which the assembled battery 1 is charged, the set current specified by the temperature range of the battery temperature detected during charging of the assembled battery 1 and the voltage of the high-voltage battery unit exceeding the maximum set voltage are lowered. The set current of the lower one of the set currents is prioritized, and charging of the assembled battery is continued with the set current. The charging circuit of Fig. 7 is based on the flowchart shown in Fig. 9 and is grouped by the following steps. The battery 1 is charged. As shown in the flowchart, the charging circuit is used to set the battery when the voltage (Ecell) of the high voltage battery unit exceeds the maximum set voltage (Vmax). 1 The set current (Ic) for constant voltage/constant current charging is lowered and charged. Fig. 10 shows the characteristics of the battery voltage and current charged according to this flowchart. In Fig. 10, the solid line A shows high. The voltage of the voltage battery cell changes, the solid line B shows the voltage change of the other battery cells, the solid line D shows the change of the charging current (I) of the assembled battery, and the one-point chain line E shows the battery of the battery. Change of set current (Ic) for constant voltage/constant current charging. 29 320215 200903948 ' [Step of n= 1] The temperature detecting circuit 8 detects the temperature of the battery. [Step of n = 2] The control circuit 25 detects based on The battery temperature is given to the specified maximum set voltage (Vmax). [Step of n = 3] The control circuit 25 specifies a set current (Ic) for charging the battery based on the detected battery temperature, and outputs it to the power supply circuit (24. The control circuit 25 is stored in the storage circuit based on The data and the battery temperature are used to set the current (Ic). As shown in Fig. 8, the set current (Ic) is specified as the low temperature region setting current (II) and the standard setting current according to the detected temperature region of the battery. (12) and the high temperature range setting current (13) set the current. [Step of n = 4] Start charging the battery pack 1. The power supply circuit 24 controls the maximum value of the output/current while The set current (Ic) specified by the step of η = 3 is subjected to constant voltage/constant current charging of the assembled battery 1. [Steps of n = 5, 6] It is judged whether or not the charging current (1) has become the minimum current (Imin) or less. The minimum current (Imin) is set to the charging current of the assembled battery 1 in the fully charged state. Therefore, when the charging current (I) of the assembled battery 1 becomes less than the minimum current (Imin) and is judged to be fully charged, Will end [Step of n = 7] When the charging current (1) is not reduced to the minimum current (Imin), control power 30 320215 200903948 • Road 25 will set the voltage (Ecell) and maximum setting of the high voltage battery unit in this step. The voltage (Vmax) is compared. [Step of n = 8] When the voltage (Ecell) of the high voltage battery cell is below the maximum set voltage (Vmax), in this step, the temperature detecting circuit 8 detects the temperature of the battery, and The set current (Ic) is specified based on the detected battery temperature. [Step of n=9] The control circuit 25 is based on the current set current (Ic) and the set current (Ic) specified in step η = 8 Specific set current (Ic), for example, 'When the set current is the set current (Ic) specified in the step of η = 3, it will be based on the set current specified in the step of η = 8. (Ic) specifies the latest set current (Ic) with the set current (Ic) specified in the step of η = 3. The control circuit 25 will be in the current set current (Ic) and in the step of η = 8. Set the current when the specific set current (Ic) is equal As the latest set current (Ic), it is output to the power supply circuit 24. Further, the control circuit 25 is lower when the current set current is different from the set current specified in the step of n=8. One of the values is the latest set current (Ic) and is output to the power supply circuit 24. [Step of n = 10] The power supply circuit 24 controls the maximum value of the output current to the latest setting specified in the previous step. The current (Ic) continues to charge the assembled battery 1. After that, return to the step of η == 5. [Step of n = 11] When the voltage (Ecell) of the high-voltage battery unit becomes higher than the maximum set voltage 31 320215 200903948 (Vmax), the current current (Ic) is judged if it has been lowered to this step. (η). When the current low temperature region 3 of the low current is not set or the current is set, the charging cannot be completed due to the inability to = current (10) and the low temperature region (1). The low setting current (10) is Advance to the step of η=6 [step of n = 12] The set current (Ic) of the field and the low temperature zone setting f «=' system_ into the current set current (10) than the temperature zone 疋 current (11) When you go wide, the set current (Ic) is reduced to a low-order current value. That is, when the current set current (Ie) is the standard set current (12), the set current (Ic) is lowered to the high temperature range setting. Current, when the current set current (Ic) is the high temperature region setting current (13), the set current is reduced to the low temperature region set current (11). The control circuit 25 takes the set current that has been lowered by the first step as the latest. The current (Ic).+ is set and output to the power supply circuit 24. 'Advancing to n=10, continue charging the battery pack ("1. The above embodiment detects the voltage of the battery and raises the voltage of the battery to the maximum set voltage to reduce the current, but sets the current. The values are set currents in the standard temperature range, the low temperature range, and the high temperature range. Since the module battery is used to change the current value according to the battery temperature to control the current, and to change the voltage of the battery. Since the current value is switched to the same set value, the circuit configuration can be easily formed. Further, it is possible to switch the set current for charging the battery to a low temperature region, a standard temperature region, and a high temperature 320215 according to the temperature region of the battery. The structure of the three-stage structure of the 200903948 degree region (the fourth) charging method can also set the specific set current according to the battery temperature into two stages, or more than the stage. x Furthermore, the module battery can be used to convert the voltage or current of the battery. In the number of births, as shown in the circuit diagram of Figure 11, the differential amplification will be used to detect The battery's battery or current detection signal is compared with the reference battery. It can control the current or voltage. The module battery in Figure u is used to detect the voltage of the battery 53 being charged to prevent overcharging. Then, the circuit 6A and the set voltage detecting circuit 7A, and the reference voltage circuit 81, 82 for outputting the U.S. voltage to the maximum voltage detecting circuit 6G and the (4) detecting circuit, and the module battery system of FIG. Since two battery cells are connected in series as the assembled battery 51, in order to detect the voltages of the positive battery cells 53 and the negative battery cells 53, the maximum electric (four) measuring circuit 6 () is provided with two sets of differential amplifications. In the differential amplifier on the negative side, the input terminal t on the negative side is input with the reference electric power from the reference electric M circuit 82, and the input terminal on the positive side is connected to the negative side via the electric G circuit 62. Battery magic. The differential amplifier 61B on the ^ side rotates the maximum voltage signal when the battery unit 53 on the negative side exceeds the capacity of the large battery unit. In the differential amplifier 61A on the positive side, the reference voltage 'from the reference voltage circuit μ is input to the input terminal on the positive side, and the input terminal of the negative side is connected to the battery cell 53 on the positive side via the resistance dividing circuit 62. . The differential amplifier 61A on the positive side outputs a maximum voltage when the voltage of the vehicle battery 53 on the positive side exceeds the maximum voltage. For example, the battery cell of the battery cell is set to 320215 33 200903948 In the case, these differential amplifiers are used to set the resistor divider circuit 62 and the reference voltage in such a manner that the maximum voltage signal is output when the battery cells 53 on the positive side and the negative side exceed 4.25 V. The output of the differential amplifier 61A on the positive side and the differential amplifier 61B on the negative side are input to the OR (OR) circuit 63. The OR circuit 63 outputs a maximum voltage signal when any of the single cells 53 exceeds the maximum voltage (4.25 V in the case of a lithium ion secondary battery), and outputs the signal to the charger f (not shown) to stop. Charging. Moreover, as described above, it is also possible to reduce the charging voltage or the charging current according to the signal ". The set voltage detecting circuit 70 includes a set voltage detecting circuit 7A for charge control for detecting overcharging of the battery 53, and a set voltage detecting circuit for discharging control for detecting overdischarge. In order to detect the set voltage of the cells 53 on the positive and negative sides of the cell on the positive side, the set voltage detecting circuit 7A for charging control includes a differential amplifier 71B having two sets of differential amplifiers 1 on the negative side. The input terminal on the negative side is input (the reference voltage from the reference voltage circuit 82 is input, and the input terminal on the positive side is connected to the battery cell 53 on the negative side via the voltage dividing ratio changing circuit 72. The negative differential amplifier 71B When the voltage of the battery cell 53 on the negative side exceeds the voltage of the battery pack, a voltage signal is output. In the differential amplifier 正 on the positive side, the reference voltage from the reference voltage circuit 81 is input to the input terminal on the positive side, and The input terminal on the negative side is connected to the positive battery cell 53 via the minute ratio changing circuit 72. The differential amplifier 71 on the positive side is a single power on the positive side, and the voltage is output when the voltage of 53 exceeds the set voltage. The voltage dividing ratio changing circuit 72 is configured to change the voltage of the unit cell % to a voltage division ratio of 320215 34 200903948 and input it to the differential amplifier 71. Therefore, the differential amplifier 71 for controlling charging can detect the first. The set voltage and the voltage are set to a second set voltage lower than the first set voltage, and the voltage signal is output. The first set voltage can be, for example, the maximum # constant voltage in the standard temperature range (in FIG. 2 4.22V), the second set voltage can be used as the maximum set voltage in the high=degree region or the low temperature region (at the second 4.03V or 4.13V). The voltage division ratio changing circuit 72 of the ', , 〆帛11 diagram The voltage dividing portion of the resistor 74 is short-circuited by the switching element 75 to change the voltage dividing ratio. The voltage dividing ratio changing circuit 72 of the 帛u diagram is composed of a series circuit of three resistors 74A, and the 7G pieces are switched. 75 is connected in parallel to a resistor 74A. The switching element 75 shorts both ends of the resistor 74A to adjust the voltage dividing ratio. The voltage dividing ratio changing circuit 72 in the figure switches the switching element 72 to off. In the state of the state, the division ratio is reduced. In the state where the switching element 75 is switched to be turned on, the voltage division ratio is adjusted. That is, the switching element 75 can be switched to the on/off state: the input is switched to the differential amplifier. 7 j of the single cell 53 voltage division ratio. In the state in which the switching element 72 is switched to be turned on, for example, the differential amplifier 71 outputs a voltage according to the first set voltage, and is shifted in a state where the switching element 75 (10) is turned off. The amplifier 71 sets the electrical resistance of the resistor 74A in accordance with the second set voltage outputting the voltage signal. Since the split ratio changing circuit 72 is set on the input side of the set electric house detecting circuit 7A for charging control, Therefore, the set voltage detecting circuit 70A 3 for charging control is doubled; the first set voltage and the second set voltage are output, and the power is 320215 35 200903948 'voltage signal. Here, the frequency ratio change circuit 72 is set to the first] Or the second setting is repeated. The setting of the charge control for the electric gate detection circuit 7〇a switches the switching element 75 to "turn off" the second set electric ink that is detected low and sets the output to "High" S, and switches the switching element 75 to be turned on. To detect a higher first set voltage. The setting for charging control for detecting overcharging of the battery 53 (4) The detecting circuit 70A includes a differential amplifier 1 71B connected to the negative side of the negative side of the battery 53, and a positive side connected to the positive side of the battery 53. Differential amplifier 71A. In the differential amplifier 71β on the negative side, the reference voltage from the reference voltage circuit 82 is input to the input terminal on the negative side, and the input terminal on the positive side is connected to the battery cell on the negative side via the split ratio changing circuit 72. The negative side differential amplifier 71B is configured to output a second output signal indicating this state when the voltage on the negative side and the voltage in the cell 53 exceed the set voltage. Since the second output signal is an apostrophe for indicating that the voltage of the battery 53 has exceeded the set voltage, the charging switching element (not shown) provided in series with the assembled battery 51 can be turned off according to the signal and the charging is reduced. The voltage or the charging voltage μ is set to, for example, a maximum set voltage in a high temperature region or a low temperature region (4 〇 3 ¥ or 4 ΐ 3 ν in FIG. 2), so that the temperature of the battery 53 is used. When it is in a high temperature zone or a low temperature zone, charging will stop according to this signal. In the second round of the signal transmission, the switching element 切换 is switched to be turned on to increase the voltage dividing ratio of the voltage dividing ratio changing circuit 72, and the input electric dust of the differential amplifier 71 is lowered. Therefore, the differential amplifier 7 is in a state in which the second output signal is not output. The battery in the standard temperature zone will not stop charging according to the second output signal, so it will continue to charge. 320215 36 200903948, electricity! rise. When the battery 53_ exceeds the "history" dust, the differential amplifier 71 will rotate the first output signal as the signal that has exceeded the first set voltage is set to, for example, the standard temperature region. This signal will stop charging at the battery 53 that is charging the incoming light. The input terminal of the positive amplifier 7M has a reference voltage from the reference circuit 82, and the negative wheel terminal is connected to the positive cell μ via the branch circuit 72. The difference between the positive side and the amplifier 71 is the same as that of the differential amplifier (10) on the negative side. When the power of 3: exceeds the second set voltage, the second (4): π: / over the first set voltage will occur. The first output signal is output, and the charging of the battery 53 is controlled. The differential amplifier 71 on the side and the differential amplifier on the negative side are in the circuit 73. (10) The circuit 73 is used to control the battery 53 when the voltage is set to 1 or 2, and the signal is set to 1 or 2, to output the voltage of the battery. . Since the module battery in which a plurality of battery cells 53 are connected in series stops charging when the voltage of the battery 53 exceeds the maximum setting, when the voltage of the battery 53 exceeds the first or second setting (four), the charging is stopped. According to this nickname, the charging cuts and pieces (not shown) provided in series with the assembled battery 51 are turned off to stop charging. = The set voltage system for detecting the discharge of the overdischarge of the battery 53 is provided with a difference between the negative side connected to the negative side of the battery 53 and the positive side connected to the positive side of the positive side of the battery 53. Put 320215 37 200903948 thief 76A. On the negative side differential amplifier 76B, the base φ voltage from the reference voltage circuit 82 is input to the positive side, and the negative side input terminal is connected to the negative side battery unit 5 via the ^= changing circuit 77; In the differential amplifier 76A on the side, the input terminal on the negative side is stepped from the reference (4) of the reference electromigration circuit 81, and the input terminal on the positive side is connected to the battery cell 53 on the positive side via the (four) ratio changing circuit. The setting of the discharge control for controlling the overdischarge is also performed by the partition ratio changing circuit 77. The electric power of the unit cell 53 is set to be two sets of voltages. The discharge of the battery 53 is controlled. In addition, it is useful to detect the differential side of the negative side of the battery 53 on the negative side and the differential side of the voltage of the battery on the positive side, so that the negative side can be The voltage of any one of the batteries 53 on the positive side is compared with the electric power, and it is detected that the electric dance of any one of the batteries 53 becomes two constant; the pressure is low and the discharge is controlled. In other words, the discharge switching element (not shown) provided in series with the battery 51 is turned "off" to stop the discharge. The module battery 300 shown in the circuit diagram of Fig. 12 has positive and negative losses. The terminal 97 and the communication terminal 98. The module battery is a voltage signal of the temperature of the battery 93 from the communication terminal. The module battery is provided with: a blue core test packet 94' detects the voltage of each battery 93 Temperature sensing...:5, @ is the temperature of the battery 93; and the arithmetic circuit 96 is used to calculate the signal input by the voltage detecting circuit 94 and the voltage input circuit 94, and the corresponding electric power: 4 93 The temperature voltage signal. As shown in Fig. 13, the operation 38 320215 200903948 - the calculation circuit 96 detects the temperature of the battery 93 based on the temperature signal input from the temperature sensor 95 to determine that the temperature of the battery 93 is below the low temperature. a temperature region of a region, a low temperature region, a standard temperature region, a high temperature region, and a temperature region above the temperature. The third graph shows the same content as the above second graph, and the voltage value of the maximum set voltage is Further, the vertical axis of Fig. 13 shows the maximum set voltage, and displays the output voltage from the communication terminal 98 in each temperature region. When the temperature of the charged battery 93 is in the low temperature region The operation circuit 96 determines whether the voltage of the battery 93 is higher than the first maximum set voltage (VI) (4.03 V in FIG. 13), and the temperature of the battery 93 is greater than the first maximum set voltage (VI). When high, a voltage signal corresponding to a low temperature region (3 V in Fig. 13) is output from the communication terminal 98. When the temperature of the battery 93 is in a state of a standard temperature region, the arithmetic circuit 96 determines the voltage of the battery 93. Is it higher than the second maximum set voltage (V2) (4.22V in Fig. 13), and when the voltage of the battery 93 is higher than the second maximum set voltage 〇 (V2), the output is equivalent from the communication terminal 98. The voltage signal in the standard temperature range (in FIG. 13 is 5V. When the temperature of the battery 93 is in the high temperature region, the arithmetic circuit 96 determines whether the voltage of the battery 93 is higher than the third maximum set voltage (V3) (in the first 13 is 4·13 V) is still high, When the temperature of the battery 93 is higher than the third maximum set voltage (V3), a voltage signal corresponding to a high temperature region (4 V in Fig. 13) is output from the communication terminal 98. When the temperature of the battery 93 is at a temperature lower than the temperature In the state of the region, the arithmetic circuit 96 outputs a voltage signal corresponding to a temperature region below the low temperature (iv in FIG. 13) from the communication terminal 98, and when the temperature of the battery 93 is in a state of a temperature region of 39 320215 200903948 • high temperature or higher The voltage signal corresponding to the temperature range above the high temperature (2V in Fig. 13) is output from the communication terminal 98. The electronic device 400 that connects the module battery 300 can detect whether the voltage of each battery 93 has exceeded the set voltage according to the voltage signal input from one communication terminal 98, and detects that the temperature of the battery 93 is in a temperature region below a low temperature, and is low. Which temperature zone is the temperature zone, the standard temperature zone, the high temperature zone, and the temperature zone above the high temperature. Further, in the battery 93, when any of the high-voltage battery cells exceeds the maximum set voltage, it is possible to (stop charging of the battery, lower the charging power and the charging voltage, or lower the set current for charging. [Simplified explanation] Fig. 1 is a block diagram showing an example of a charging circuit used in a charging method of a battery pack according to an embodiment of the present invention. 'Fig. 2 is a graph showing a maximum set voltage with respect to battery temperature. ^ Fig. 3 A flow chart showing a charging method of a battery pack according to an embodiment of the present invention. Fig. 4 is a graph showing characteristics of a battery voltage and current charged in the procedure shown in Fig. 3. Fig. 5 is a view showing another embodiment of the present invention. A flow chart of a method of charging a battery pack according to an embodiment. Fig. 6 is a graph showing characteristics of a battery voltage and current charged in the procedure shown in Fig. 5. Fig. 7 is a view showing another embodiment of the present invention. Example of a battery pack 40 320215 200903948 A block diagram of an example of a charging circuit used in the method. The figure 8 shows a graph of a set current with respect to the battery temperature. The S-th page shows a flow chart of the charging method of the assembled battery of another embodiment of the present Qiao Ming. + FIG. 10 shows the characteristics of the battery and the current which are charged by the step shown in FIG. Fig. 11 is a circuit diagram showing an example of a circuit for overcharging or overdischarging a battery of a heart detecting group. Fig. 12 is a block diagram showing an example of a module battery for performing a temperature range for determining the temperature of the battery. 〇3 shows the set voltage with respect to the battery temperature - Example 1, main component symbol description 3, 53, power 93 battery 2 4 ' 24 5, 25 7 control circuit 6, 94 / 9 11 current detection circuit 8 Commercial power supply 10, 75 13' 33 Transformer 12 Current feedback circuit 14 15: 35 2〇 Storage circuit 16 ' 36 60 AC adapter r=t 34 61, 71 Gundam voltage detection circuit '76 Differential amplifier battery unit power supply Circuit voltage detection circuit temperature detection circuit switching element voltage feedback circuit input circuit power reduction circuit drive circuit 320215 41 200903948 f. 61A, 71A, 76A positive side differential amplifier 61B, 71B, 76B negative side Differential amplifier 62 Resistor voltage dividing circuit 63 > 73 OR circuit 70 Setting voltage detecting circuit 70A Setting voltage detecting circuit 70B for charging control Setting voltage detecting circuit 72' for discharging control Partial voltage ratio changing circuit 74 Voltage dividing resistor 74A Resistor 81, 82 Reference Voltage Circuit 95 Temperature Sensor 96 Operation Circuit 97 Output Terminal 98 Communication Terminal 100, 300 Module Battery 200, * 400 Electronic Machine
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