201208228 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種電池的電力管理電路’且特別是有關 於一種單電池(cell)等級的電池管理電路、陣列式電池管理電路 與電池模組。 【先前技術】 一般而言電池組(battery)，也稱之為電池，是由多個單電 池(Cell)串聯或並聯所組成，最常見的就是車用鉛酸電池。電池 可分為一般電池(primary battery)與可充電電池(rechargeable battery or secondary battery)，一般電池在電量耗盡後無法再度 充電使用，而可充電電池則可以重複充電使用，例如有鋰離子 電池、鎳鐵電池、鉛酸電池、鎳鎘電池、鎳氫電池等。 由於可充電電池具有記憶效應，其中以鎳鎘最為嚴重，所 在充電電池如果過度放電或是過度充電皆會對電池造成傷害 。一個電池組中通常會包括多個單電池，每個單電池的充電與 放電特性會稍林同’如果使射目同的電壓對所有單電池充電 ^可能會使得部份單電池過度充電崎成财。反之，在放電 時’電池組中的部分單電池可能會過度放電而造成損壞。 在傳統技術中，可充電電池的電 的細支術大都以電池組為單位來 1•目月 組中的單電池進行電源管理的技術，心== -單電池容易因過度充電或程中’其 4/21 201208228 【發明内容】201208228 VI. Description of the Invention: [Technical Field] The present invention relates to a power management circuit for a battery, and more particularly to a cell management circuit, an array battery management circuit, and a battery module. group. [Prior Art] Generally, a battery, also called a battery, is composed of a plurality of single cells (Cell) connected in series or in parallel, and the most common one is a lead-acid battery for a vehicle. The battery can be divided into a primary battery and a rechargeable battery or a secondary battery. Generally, the battery cannot be recharged after the battery is exhausted, and the rechargeable battery can be recharged, for example, a lithium ion battery. Nickel-iron battery, lead-acid battery, nickel-cadmium battery, nickel-hydrogen battery, etc. Since the rechargeable battery has a memory effect, nickel-cadmium is the most serious, and the rechargeable battery may cause damage to the battery if it is excessively discharged or overcharged. A battery pack usually includes a plurality of single cells, each of which has the same charging and discharging characteristics. 'If the same voltage is applied to charge all the cells, it may cause some cells to overcharge. fiscal. Conversely, some of the cells in the battery pack may be over-discharged and damaged during discharge. In the conventional technology, the electric fine branching of the rechargeable battery mostly uses the battery unit as a unit to perform power management technology for the single cell in the 1 month group, and the heart == - the single battery is easily overcharged or in progress' 4/21 201208228 [Summary content]
種㈣管理魏，其具有各膽控電池組中 夕個早電池(可充電電池)的電力狀態的功能，可以防止 電池的過度充钱過度放電的収發生，進啸高電池^ 力效率與使用壽命。 、电 本發明另提供—種電池，使料列控_來個別龄控 所有可充電電池(單電池)的電力狀態，並在可充電電池的電^ 超過默的電壓範圍時，使充電路徑或放電職略過可充電電 池以避免各別可充f電池的過度充電或過度放電的情況發生 ，進而提高電池組的電力效率與使用壽命。 、本發明㈣供，電歸理綠，可以錢監控所有可充 電電池的電力狀態，並且據以控制該些可充電電池的充放電路 ，以保護可充電電池。此外，此方法也可以用來收集各別可充 电電池的電力狀態，例如充放電效率或剩餘電量。(4) Management Wei, which has the function of the power state of the early battery (rechargeable battery) in each of the bile control battery packs, can prevent the overcharge of the battery from over-discharging, and the high efficiency and use of the battery life. The present invention further provides a battery for controlling the power state of all rechargeable batteries (single cells) at an individual age, and making the charging path or the charging battery when the voltage of the rechargeable battery exceeds a silent voltage range. The discharge service over the rechargeable battery to avoid overcharging or over-discharging of the respective rechargeable batteries, thereby improving the power efficiency and service life of the battery pack. According to the invention (4), the electricity is green, and the power state of all rechargeable batteries can be monitored, and the charging and discharging circuits of the rechargeable batteries are controlled to protect the rechargeable battery. In addition, this method can also be used to collect the power status of individual rechargeable batteries, such as charge and discharge efficiency or remaining power.
么本發明另提供一種電池模組’在電池模組中增設備用電池 、且Γ取代損壞的電池組’藉此可加長電池模組的使用壽命，避 免單一電池組的損壞而影響整體電池模組的電力輸出。 本發明的技術方案之一為一種電池管理電路，適用於一可 充電電池(rechargeable battery)，此電池管理電路包括一傳導電 路，其耦接於可充電電池，傳導電路具有一第一傳導路徑與一 第:傳導路徑，其中第一傳導路徑通過可充電電池，第二傳導 路k不通過可充電電池；以及一控制電路，麵接於可充電電池 與傳導電路，根據可充電電池的電池電壓選擇性的導通傳導電 路中的第一傳導路徑或第二傳導路徑。 在本發明一貫施例中，當可充電電池的電池電壓大於一第 門檻值時’傳導電路導通第二傳導路徑且不導通第一傳導路 5/21 201208228 “通口::;第二門檻值時’傳導電路 第二門檻值 =:一_與-第二門= 充;=: ^ . 通第一傳導路徑，其中第一門檻值大於 於可實施例中’傳導電路包括—第一開關，其祕 充電電池的！，^與厂端之間；—第二開關’其_於可 -端'Hk之間’·以及―第三關，其搞接於第 H端之間。其巾當可充電電池的電池電壓大於一第一 3檻，=料電料料三關料導衫—開難第二開 充電電池㈣池電壓小於—第二值時，傳導電路 S第二開關料導通第1關與第二開關。當可充電電池的 池電驗於-第—門檀值與_第二門鮮之間時，傳導電路 ’通第-開關與第二關且不導通第三開關，其中第—門檀值 大於第二門檻值。 在本發明一實施例中，其中控制電路包括一電壓感測單元 其搞接於可充電電池的正端與負端’用以感測電池電壓；一 控制單元，其耦接於電壓感測單元與傳導電路，並根據可充電 電池的電池電壓控制傳導電路以導通第—傳導路徑或第二傳 導路徑；以及電流感測單元，其輕接於可充電電池，用以感測 流經可充電電池的電紐單錄據可充電電池的 電池電壓與流經可充電電池的電流值計算充電電池的電量。 。本發明的另一技術方案為一種電池模組，包括複數個供電 單元與一陣列控制器。各該供電單元具有一可充電電池，陣列 控t器具有複數條通道以分別耦接於該些供電單元，該陣列控 制器經由該些通道分別偵測該些可充電電池的電力狀態並根 6/21 201208228 據該些可充電電池的電力妝能八 放電路徑。 心77別控制該些可充電電池的充 本發明的另一技術方案為一 組，各該電池組具有複數個^ 2模組，包括複數個電池 複數個可充電電池；一供電带電池，一備用電池組，具有 •電池組，用以切換電池組與備其輕接於電池組與傷用 測單元，其麵接於供電路徑電田:且的傳導路徑；一電壓感 是否正常；以及-控制器，发接^感測電池組的電池電墨 是否損壞當=:據的感測結果判斷電池組 整電池組與備用電池組的傳導制裔經由供電路徑電路調 電池組。 ⑽導·，使備用電池組取代損壞的 本發明另提出一種電池管理 供複數條通道以分別輕接㈣此雷^括下列步驟：a.提 分別偵測該些可充電電池的電：狀!早該些通道 池的電力狀態分別控制該些 電'也C•才據5亥些可充電電 P人μ、+、 ，^ 』兄電電池的充放電路徑。 ，、、不5上述’本發明所提出的電池管理電路 中個別單電池過度充電或過度 解决了電池組 且至少具有以下功效：&放電而造场壞的技術問題，並 1. 個別監控電池組中_單電池的電 或過度放電的情況發生。 免過度充電 2. 利用陣列式的控制電路，可以個別監控 狀態以提供最準確的電力消耗狀態。工 、的電力 3·利用備用電池組來取代損壞的電;;組，可㈣加敕 _的使用壽命，避免單一電池組的損壞“ 2池 組的電力輸出。 貝U整體電池模 7/21 201208228 為讓本發明之上述特徵和優點能更明顯易懂，下文特舉較 佳實施例’並配合所附圖式，作詳細說明如下。 【實施方式】 (第一實施例） 圖1為根據本發明第一實施例的電池管理電路示意圖，電 池管理電路100適用於管理可充電電池(rechargeable battery :11)102的充電與放電程序以避免過度充電或過度放電。電池 s理電路1〇〇包括控制電路11〇與傳導電路12〇,控制電路 轉接於傳導電路110與可充電電池搬，傳導電路12G搞接於 可充電電池1G2的正端與負端。控制電路UQ包括電流感測單 元m、電壓感測單元114與控制單元116，其中電流感測單 元II2搞接於可充電電池1()2的正端以感測流經可充電電池 1〇2的電流值，電壓感測單元114 於可充電電池1〇2的正 立而與負端以感測可充電電池搬的電池電壓。控制單元116麵 接於電流感測單元112、電壓感測單元114與傳導電路12〇。 控制單元116可根據錢_單元114的❹!結果㈣傳導電 路120的傳導路徑，根據電流感測單元112與電壓感測單元 1Μ的感測結果计算可充電電池1〇2 &電力狀態，㈣如剩餘電 量與耗電量。 傳導電路120包括第一開關swi、第二開關§W2與第三 開關SW3，第一開關SW1經由電流感測單元112耦接於可充 電電池102的正端與第-端T1之間，第二開關SW2搞接於可 充電電池102的負端與第二端T2之間’第三開關撕搞接於 第々而T1與第一％ T2之間。第一端T1與第二端T2則可用 8/21 201208228 來取代可充電電池m原本的正端與負端以與外部電 他可充電電、減接。也就是說外部電路需透過料電路 = 能連接至可充電電池102。 ^ 傳導電路12〇具衫—傳導雜ρι與第二料路徑 ’其中第一傳導路徑P1通過第一開關sw卜可充電電池工 與第二開關SW2，第二傳導路徑P2則通過第三開關⑽ 不通過可充f電池1G2。當第—㈣謂鮮二開關撕 通時，第一傳導路把Pi導通；當第三開關SW3導通時_ 傳導路徑！>2導通。控制單元116可經由控制第—開關The invention further provides a battery module 'incorporating a battery for a device in a battery module and replacing the damaged battery pack', thereby prolonging the service life of the battery module and avoiding damage of the single battery pack and affecting the overall battery module. Group of power output. One of the technical solutions of the present invention is a battery management circuit, which is applicable to a rechargeable battery. The battery management circuit includes a conductive circuit coupled to the rechargeable battery. The conductive circuit has a first conductive path and a conductive path, wherein the first conductive path passes through the rechargeable battery, the second conductive path k does not pass through the rechargeable battery; and a control circuit is connected to the rechargeable battery and the conductive circuit, and selects according to the battery voltage of the rechargeable battery The conductive conduction conducts a first conductive path or a second conductive path in the conductive circuit. In a consistent embodiment of the present invention, when the battery voltage of the rechargeable battery is greater than a threshold value, the conduction circuit conducts the second conduction path and does not conduct the first conduction path 5/21 201208228 "port::; second threshold value The second threshold value of the conduction circuit =: one _ and - the second gate = charging; =: ^. The first conduction path, wherein the first threshold value is greater than in the embodiment, the conductive circuit includes - the first switch, The secret charge battery!, ^ and the factory end; - the second switch 'the _ between the - end 'Hk' and the third level, which is connected between the H end. The battery voltage of the rechargeable battery is greater than a first 3 槛, = the material of the electric material is three-way material guide shirt - the opening of the second open rechargeable battery (four) when the cell voltage is less than - the second value, the second circuit material of the conduction circuit S is turned on 1 switch and the second switch. When the battery of the rechargeable battery is checked between the -th gate value and the second gate, the conduction circuit 'passes the first switch and the second switch and does not turn on the third switch, Wherein the first gate value is greater than the second threshold value. In an embodiment of the invention, wherein the control circuit comprises a voltage sensing list It is connected to the positive end and the negative end of the rechargeable battery to sense the battery voltage; a control unit coupled to the voltage sensing unit and the conducting circuit, and controlling the conducting circuit according to the battery voltage of the rechargeable battery to be turned on a first conductive path or a second conductive path; and a current sensing unit that is lightly connected to the rechargeable battery for sensing the battery voltage of the rechargeable battery flowing through the rechargeable battery and flowing through the rechargeable battery The current value of the battery calculates the power of the rechargeable battery. Another technical solution of the present invention is a battery module comprising a plurality of power supply units and an array controller. Each of the power supply units has a rechargeable battery, and the array control device has The plurality of channels are respectively coupled to the power supply units, and the array controller respectively detects the power states of the rechargeable batteries via the channels and the roots are 6/21 201208228 according to the power makeup of the rechargeable batteries. The other side of the invention is a set of ones, each of the battery packs having a plurality of modules, including a plurality of The pool has a plurality of rechargeable batteries; a power supply battery, a spare battery pack, and a battery pack for switching the battery pack and being lightly connected to the battery pack and the injury measuring unit, which are connected to the power supply path field: And the conduction path; whether the voltage sense is normal; and - the controller, the connection ^ senses whether the battery ink of the battery pack is damaged when the =: the sensing result of the battery determines the conduction system of the battery pack and the backup battery pack The battery is adjusted by the power supply path circuit. (10) Conducting the battery pack to replace the damaged battery. The present invention further provides a battery management for a plurality of channels to be respectively connected (4). The following steps are included: a. The charge of some rechargeable batteries: the power state of the channel pools has been controlled to control the electricity separately. Also C. According to the charge and discharge path of the rechargeable battery P, μ, +, , ^ . In the battery management circuit proposed by the present invention, the individual battery cells are overcharged or over-resolved, and at least have the following effects: & discharge and technical problems of discharge, and 1. Individual monitoring battery The occurrence of electrical or over-discharge of the _cell in the group occurs. Overcharge-free 2. With array-based control circuitry, individual status can be monitored to provide the most accurate power consumption status. Work, electricity 3 · use the backup battery pack to replace the damaged electricity;; group, can (four) twist _ the service life, to avoid the damage of a single battery pack "2 pool group power output. Bay U overall battery model 7/21 201208228 In order to make the above features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. A schematic diagram of a battery management circuit according to a first embodiment of the present invention, the battery management circuit 100 is adapted to manage charging and discharging procedures of a rechargeable battery (11) 102 to avoid overcharging or overdischarging. The control circuit 11A and the conduction circuit 12 are connected to the conduction circuit 110 and the rechargeable battery, and the conduction circuit 12G is connected to the positive end and the negative end of the rechargeable battery 1G2. The control circuit UQ includes a current sensing unit m. The voltage sensing unit 114 and the control unit 116, wherein the current sensing unit II2 is connected to the positive end of the rechargeable battery 1 () 2 to sense the current value flowing through the rechargeable battery 1 , 2, the voltage sensing list The unit 114 senses the battery voltage of the rechargeable battery in the upright and negative ends of the rechargeable battery 1〇 2. The control unit 116 is connected to the current sensing unit 112, the voltage sensing unit 114 and the conducting circuit 12A. The control unit 116 may calculate the rechargeable battery 1〇2 & power state according to the sensing result of the current sensing unit 112 and the voltage sensing unit 1 according to the conduction path of the money unit 114, and (4) The conduction circuit 120 includes a first switch swi, a second switch §W2, and a third switch SW3. The first switch SW1 is coupled to the positive end of the rechargeable battery 102 via the current sensing unit 112. - between the terminals T1, the second switch SW2 is connected between the negative end of the rechargeable battery 102 and the second end T2. The third switch is connected between the first switch and T1 and the first % T2. T1 and the second end T2 can replace the original positive and negative ends of the rechargeable battery m with 8/21 201208228 to charge and reduce with the external electric charge. That is to say, the external circuit needs to be through the material circuit = can be connected to Rechargeable battery 102. ^ Conduction circuit 12 blouse - conduction ρ And the second material path 'where the first conduction path P1 passes through the first switch sw and the second switch SW2, and the second conduction path P2 passes through the third switch (10) without passing through the rechargeable battery 1G2. When the first (4) When the fresh switch is turned off, the first conduction path turns on Pi; when the third switch SW3 is turned on, the conduction path! > 2 is turned on. The control unit 116 can control the first switch
第二開關SW2與第三開關SW3麵擇性的導通第—傳 P1或第二傳導路徑P2。 I 控制單元116 +會設有第一門捏值與第二門檻值，用來盘 可充電電池搬的電池電壓比較以妓可充電電池⑽是否過 度充電或過度放電，其中第—門魏大於第二門紐。當 電電池102的電池電壓超過第一門植值時，表示過度充電告 可^電電池H)2的電池電壓小於第二門紐時，表示過度放^ 的it電電池102的電池電壓超過第一門檻值與第二門檀值 合、s、即大於第一門檻值或小於第二門檻值），控制單元 ’-¥通第二傳導路徑μ且不導通第一傳導路徑η，藉此 免可充電電池102繼續充電或放電。反之，當可充電電、、也 άΓ古第一傳V路徑P1且不導通第二傳導路徑P2,讓 0 也102繼續正常的進行放電或充電程序。 相丨约日日a開關、第二開關SW2與第三開關SW3來舉 笼一⑴,田可充電電池102的電池電壓大於第一門檻值或小於 風值4，控制單元120會導通第三開關SW3且不導通 9/21 201208228 第一開關SW1與第二開關SW2。當可充電電池102的電池電 壓位於第一門檻值與第二門檻值之間時，控制單元丨2〇會導通 第一開關SW1與第二開關SW2且不導通第三開關SW3。藉此 ’電池管理電路1〇〇可以在可充電電池1〇2過度充電或過度放 電時，讓整個系統的電流傳導路徑跳過可充電電池1〇2以避免 可充電電池102受到損壞。 值得注意的是，上述第一開關SW；L、第二開關SW2與第 三開關SW3可利用N通道金.氧半場效電晶體(N channel metal -oxide _ semiconductor field-effect transistor)、P 通道金氧半場 效電晶體(P channel metal-oxide-semiconductor field-effect transistor)或其他開關元件來實施，本發明並不受限。此外，上 述傳導電路120也可使用多工器或其他開關元件的組合來實 施，本發明並不受限。電流感測單元112主要是用來感測流經 可充電電池102的電流值，其可以設置在可充電電池1〇2的正 端或負端，只要位於可充電電池102的電流傳導路徑上即可， 本發明並不受限。藉由電壓感測單元114與電流感測單元112 ，控制單元116可以取得可充電電池102的電池電壓與流經可 充電電池102的電流值，這樣可以計算充電電池1〇2的剩餘電 1、輸出電量以及充電效率。若不需要計算上述數據，電流感 測單元112可以去除以降低電路設計成本。 另外，電池管理電路1〇〇可以在充電與放電程序中保護可 充電電池102免於過度充電或過度放電。然而，在充電程序或 放電程序結束後，控制單元12〇會導通第一傳導路徑pi且不 導通第二傳導路徑P2以恢復可充電電池1〇2的對外連接關係 1"灰復可充電電池102在系統中或電池組中的功能。控制單^ U0可以藉由偵測第二傳導路徑P2上的電流值與方向來得知 10/21 201208228 充電與放電程序是否結束，或是藉由外部電路來輸入一通報信 5虎給控制單元120以確定充電與放電程序是否結束。 上述電池管理電路100可以應用在電池組中的多個可充 電電池上以達到各別監控的功效，避免單一可充電電池損壞而 使得整個電池組報銷。請參照圖】與圖2，圖2為根據本發明 第一實施例電池模組示意圖。電池模組2 〇 〇可以用來管理^個 可充電電池’例如-個電池組或多個電池組。電池模組包 括多個供電單元210與陣列控制器23〇。每個供電單元21〇具 有-可充電電池102與-電池控制電路1〇〇，其中電池管理電 路1〇〇包括一個控制電路110與一個傳導電路，如圖卜斤 不。控制電路110與傳導電路12〇耗接於可充電電池脱，用 充電電池1Q2與外部電路的傳導路徑。控制電路ιι〇 ^導電路的細部電路實施方式與操作方式如上述圖 說明’在此不加贅述。 ^圖2中’ _㈣器23G會經由多個通道cm〜cHi3 刀連接至供電單元210,通道咖〜cm3與供電單元2i〇為 Z一設置’非階層式設置。所以陣列控制器2 元21"目連接並且直接取得其電力狀態的資= 有個供電早70210的充放電路徑。陣列控制器230與所 電路⑽形成-陣列控制電路，可用來分別監控： 制、㉝池1〇2的電力狀態（包括電壓與電流），然後分別押 D個料電路m _擇_導 ： 傳輪路徑P2(如圖！所示）。障批 二仪m 110接收每個可充電電、、也⑽物控制為230可經由控制電路 / 的電池電壓與流經的電流值，n 此達到各別監控的效果。陣列扣 电a值错 池102的電池電壓狀離，、灰^制裔230可依照母個可充電電 心'、火是否讓整體電池模組的電流傳導 11/21 201208228 路徑跳過此可充電電池102以避免過度充電或過度放電而造 成某一可充電電池102損壞。也就是說，導通相對應的俸導電 路120 t的第二傳導路徑P2且不導通其第一傳導路徑ρι以避 免充電電流或放電電流通過有問題的可充電電池1〇2。陣列控 制器230或控制電路11〇所取得的電力資訊或其内部的設定^ 可儲存於内建或外置的記憶元件，例如電子抹除式可複寫唯讀 記憶體(Electrically-Erasable Programmable Read-Only Memory)或 快閃記憶體(flashmemory)，本發明並不限制記憶元件的類型。 此外，電池模組200可以在充電或放電程序結束後，通知 控制電路11〇恢復可充電電池102與其他可充電電池1〇2之間 的電流傳輸路徑(即導通第一傳導路徑ρι且不導通(關閉）第二 傳導路徑P2)。在本發明另一實施例中，_控制器230、控 制電路110與傳導電路12〇可以選擇性的整合在同一積體電路 之中或使用離散元件(discrete c〇mp〇nents)來實現，本發明並不 受限。在圖2中，陣列控制器230主要是用來整合所有可充電 電池102的電力資訊以及經由控制電路11〇去控制傳導電路 120以達到各別監控的效果。換言之，本發明的電池管理電路 1〇〇可應用在單—個可充電電池的電源管理，也可以應用多個 可充電電=的電源管理。對傳導電路12〇的控制權可由控制電 路110負責或是交由陣列控制S 230貞責，本發明並不受限。 (第二實施例） 本發，另提出—種電池模組，請參照圖3，圖3為根據本 發明第一實施例的電池模組示意圖。電池模組包括複數個 電池組310、一供而， m 1有用電池組320、一供電路徑電路330、一控 制器340與一電壓感測單元350。各該電池組310與備用電池 、’且320具有複數個可充電電池，其中可充電電池可串 聯或並聯 12/21 201208228 :==2 耦接於所有電池組310與備用電池組320 Πη、電組310與備用電池组320的傳導路徑。電壓感 ’的=電厂 =於，f電路330,用以感測各別電池組310 供電路徑G 3:’制器340耦接於電壓感測單元350與 组S根據電壓感測單元35G的感測結果判斷電池 ίΓ々 壞’當電池組310之一損壞時，控制器340經由 二，^電路330調整電池組31G與備用電池組32〇的傳導路 ίο且右Γ電池組320取代損壞的電池組310。供電路徑電路 其例如由多個開關元件或多工器組成。 :::所輸出的控制信號來調整其内部的電= 便合㈣在偵測到有電池組310損壞時，控制器340 ^Γ31〇 !!Γϊ 330 5 320 έ "、准持正吊的電力輸出。電池組310的損壞與否可 ί電電===:例如充電後的電峨過低或是 的判斷基準外’㈣者也可設定其他 (第三實施例） 夫昭^4由上园述實施例’本發明可歸納出一種電池管理方法。請 圖Γ、料H4為根據本發明第四實施例的電池管理方法流程 ㈣數條通道以分_接於供電單元(步驟S410) 驟S42〇t些可充電電池的電力狀態（步 料可充雷t 根據該些可充電電池的電力狀態分別控制 °Λ二了充電電池的充放電路徑(步驟S430)。 其中，步驟S430更包括分別提供各可充電電池一第—傳 13/21 201208228 導路徑與一第二傳導路徑，其 ，第二傳導路徑不通過财充料路_過可充電電池 池的電池電壓，分別選擇性導通 -傳導路徑或該第二傳導路經 1的第 s㈣中，當可充電電池中^各該可充電電池。在步驟 於-預設區間時，導通對應於第=電電池的電池電壓位 :關閉對應於第一可充電電池的第二傳導 :====第，電電池 #丄 弟可充電電池的第一僂導路 電池管理方法的其餘細節請參昭 ]檻值之間本 的說明，本技術領域具有通常知由上述實施例 管理方法的猶㈣，在此赌㈣知其電池 戋門’主思的疋’上述元件之間的耦接關係包括直接 ^接或兩者対的電性連接，只要可以達到 可’本發明並不受限。上述實施例中的技術手柯以 太ί元件可依照其功能與設計需求增加 2或替換’本發明並不受限。在經由上述實施例之說明後 ’ t技術領域具有通常知識者射推知其他實施方式，在此不 加贅述。 «•ΛΑ4上所述’本發明㈣各料域電池的電力狀態來選擇 性的調整其電池模組的電流傳導路徑，藉此避免對單一可充電 電池，度充電或過度放電而造成損壞。本發明具有延長整體電 =組壽命的功效並且可提供每個可充電電池的電力狀態給使 用者參考。 雖然本發明讀佳實施例已㈣如上，穌發明並不受限 14/21 201208228 於上述實施例，任何所屬技術領域中具有通常知識者，在不脫 離本發明所揭露之範圍内，當可作些許之更動與調整，因此本 發明之保護範圍應當以後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1為根據本發明第一實施例的電池管理電路示意圖。 圖2為根據本發明第一實施例的陣列式電池管理電路。 圖3為根據本發明第二實施例的電池模組示意圖。 圖4為根據本發明第四實施例的電池管理方法流程圖。 【主要元件符號說明】 100 ： 電池管理電路 102 ： 可充電電池 110 ： 控制電路 112 ： 電流感測單元 114 ： 電壓感測單元 116 ： 控制單元 120 ： 傳導電路 200 ： 電池模組 210 ： 供電單元 230 ： 陣列控制器 300 : 電池模組 310 ： 複數個電池組 320 ： 備用電池組 330 ： 供電路徑電路 340 ： 控制器 350 ： 電壓感測單元 15/21 201208228 CH1〜CH13 :通道 SW1 :第一開關 SW2 :第二開關 SW3 :第三開關 T1 :第一端 T2 :第二端 P1 :第一傳導路徑 P2 :第二傳導路徑 S410〜S430 :流程圖步驟The second switch SW2 and the third switch SW3 selectively turn on the first pass P1 or the second conductive path P2. The I control unit 116+ is provided with a first threshold value and a second threshold value for comparing the battery voltage of the rechargeable battery to whether the rechargeable battery (10) is overcharged or overdischarged, wherein the first gate is greater than the first Two doors. When the battery voltage of the battery 102 exceeds the first threshold value, indicating that the battery voltage of the over-charged battery H) 2 is less than the second threshold, the battery voltage of the power battery 102 exceeding the voltage is exceeded. A threshold value is combined with the second threshold value, s, that is, greater than the first threshold value or less than the second threshold value, and the control unit '-¥ passes the second conduction path μ and does not conduct the first conduction path η, thereby avoiding The rechargeable battery 102 continues to be charged or discharged. On the other hand, when the rechargeable electric power is transmitted to the first V path P1 and the second conductive path P2 is not turned on, the 0 also 102 continues the normal discharging or charging process. In contrast to the day a switch, the second switch SW2 and the third switch SW3 to raise the cage one (1), the battery voltage of the field rechargeable battery 102 is greater than the first threshold or less than the wind value 4, the control unit 120 turns on the third switch SW3 does not turn on 9/21 201208228 first switch SW1 and second switch SW2. When the battery voltage of the rechargeable battery 102 is between the first threshold and the second threshold, the control unit 丨2 turns on the first switch SW1 and the second switch SW2 and does not turn on the third switch SW3. Thereby, the battery management circuit 1 can make the current conduction path of the entire system skip the rechargeable battery 1〇2 when the rechargeable battery 1〇2 is overcharged or overdischarged to prevent the rechargeable battery 102 from being damaged. It should be noted that the first switch SW; L, the second switch SW2 and the third switch SW3 can utilize N channel metal-oxide _ semiconductor field-effect transistor (P-channel gold). The P channel metal-oxide-semiconductor field-effect transistor or other switching element is implemented, and the invention is not limited. Furthermore, the above-described conduction circuit 120 can also be implemented using a combination of multiplexers or other switching elements, and the present invention is not limited. The current sensing unit 112 is mainly used to sense the current value flowing through the rechargeable battery 102, which may be disposed at the positive or negative end of the rechargeable battery 1〇2, as long as it is located on the current conducting path of the rechargeable battery 102. Yes, the invention is not limited. By the voltage sensing unit 114 and the current sensing unit 112, the control unit 116 can obtain the battery voltage of the rechargeable battery 102 and the current value flowing through the rechargeable battery 102, so that the remaining power of the rechargeable battery 1〇2 can be calculated. Output power and charging efficiency. If the above data does not need to be calculated, the current sensing unit 112 can be removed to reduce the circuit design cost. Additionally, the battery management circuit 1 can protect the rechargeable battery 102 from overcharging or overdischarging during charging and discharging procedures. However, after the charging process or the discharging process ends, the control unit 12 turns on the first conduction path pi and does not turn on the second conduction path P2 to restore the external connection relationship of the rechargeable battery 1〇2" the gray rechargeable battery 102 Features in the system or in the battery pack. The control unit U0 can detect whether the 10/21 201208228 charging and discharging program is finished by detecting the current value and direction on the second conduction path P2, or input a notification letter 5 to the control unit 120 through an external circuit. To determine if the charge and discharge procedures are over. The battery management circuit 100 described above can be applied to a plurality of rechargeable batteries in a battery pack to achieve the respective monitoring effects, avoiding damage to a single rechargeable battery and reimbursing the entire battery pack. Referring to the drawings and FIG. 2, FIG. 2 is a schematic diagram of a battery module according to a first embodiment of the present invention. Battery Module 2 〇 〇 can be used to manage rechargeable batteries, such as a battery pack or multiple battery packs. The battery module includes a plurality of power supply units 210 and an array controller 23A. Each of the power supply units 21 has a rechargeable battery 102 and a battery control circuit 1B, wherein the battery management circuit 1 includes a control circuit 110 and a conduction circuit, as shown in Fig. 1. The control circuit 110 and the conduction circuit 12 are detached from the rechargeable battery, and the conduction path of the rechargeable battery 1Q2 and the external circuit is used. The detailed circuit implementation and operation mode of the control circuit ι 〇 导 如 如 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In Fig. 2, the '_(4) device 23G is connected to the power supply unit 210 via a plurality of channels cm~cHi3, and the channel coffee ~cm3 and the power supply unit 2i are set to a non-hierarchical setting. Therefore, the array controller 2 yuan 21 " the connection and direct access to its power state = there is a charge and discharge path of the power supply 70210. The array controller 230 and the circuit (10) form an array control circuit, which can be used to separately monitor: the power state of the 33-cell 1〇2 (including voltage and current), and then respectively push D material circuits m_select_guide: pass Wheel path P2 (shown in Figure!). The two meters m 110 receive each rechargeable power, and the (10) object is controlled to 230 by the control circuit / the battery voltage and the current value flowing through, n to achieve the effect of the respective monitoring. The battery voltage of the array deduction a value pool 102 is off, and the gray 230 can be charged according to the mother's rechargeable electric core, and whether the fire allows the current conduction of the whole battery module 11/21 201208228 path to skip this rechargeable The battery 102 prevents damage to a certain rechargeable battery 102 from overcharging or overdischarging. That is, the second conductive path P2 of the corresponding germanium conductive path 120 t is turned on and the first conductive path ρι is not turned on to prevent the charging current or the discharging current from passing through the problematic rechargeable battery 1 〇 2 . The power information obtained by the array controller 230 or the control circuit 11 or its internal settings can be stored in a built-in or external memory component, such as an electrically erasable rewritable read-only memory (Electrically-Erasable Programmable Read- Only Memory) or flash memory, the invention does not limit the type of memory element. In addition, the battery module 200 can notify the control circuit 11 to resume the current transmission path between the rechargeable battery 102 and the other rechargeable batteries 1 〇 2 after the end of the charging or discharging process (ie, the first conductive path is turned on and not turned on). (closed) the second conduction path P2). In another embodiment of the present invention, the controller 230, the control circuit 110, and the conduction circuit 12A may be selectively integrated in the same integrated circuit or implemented by discrete components (discrete c〇mp〇nents). The invention is not limited. In Fig. 2, the array controller 230 is primarily used to integrate the power information of all of the rechargeable batteries 102 and to control the conduction circuit 120 via the control circuit 11 to achieve the effect of individual monitoring. In other words, the battery management circuit 1 of the present invention can be applied to power management of a single rechargeable battery, and can also apply power management of a plurality of rechargeable batteries. Control of the conduction circuit 12A can be performed by the control circuit 110 or by the array control S 230, and the present invention is not limited. (Second Embodiment) In the present invention, a battery module is provided. Referring to Figure 3, there is shown a schematic view of a battery module in accordance with a first embodiment of the present invention. The battery module includes a plurality of battery packs 310, a supply unit, a battery pack 320, a power path circuit 330, a controller 340, and a voltage sensing unit 350. Each of the battery packs 310 and the backup battery, 'and 320 has a plurality of rechargeable batteries, wherein the rechargeable batteries can be connected in series or in parallel 12/21 201208228 :==2 is coupled to all of the battery pack 310 and the backup battery pack 320 Πη, electricity The conduction path of group 310 and backup battery pack 320. The sense of voltage = power plant = in, f circuit 330, for sensing the respective battery pack 310 power supply path G 3: 'the controller 340 is coupled to the voltage sensing unit 350 and the group S according to the voltage sensing unit 35G The sensing result determines that the battery is defective. When one of the battery packs 310 is damaged, the controller 340 adjusts the conduction path ίο of the battery pack 31G and the backup battery pack 32 via the second circuit 330, and the right battery pack 320 replaces the damaged battery. Battery pack 310. The power path circuit is composed of, for example, a plurality of switching elements or multiplexers. ::: The output control signal is used to adjust its internal power = (4) When it is detected that the battery pack 310 is damaged, the controller 340 ^ Γ 31 〇!! Γϊ 330 5 320 έ " Power output. The damage of the battery pack 310 can be 电Electrical power ===: For example, if the electric charge after charging is too low or the judgment criterion is '(4), other ones can be set (Third embodiment) Fu Zhao ^4 is implemented by the above description EXAMPLES The present invention can be summarized as a battery management method. Please note that the material H4 is a battery management method according to the fourth embodiment of the present invention. (4) A plurality of channels are connected to the power supply unit (step S410). Step S42〇t the power states of the rechargeable batteries (steps can be charged) According to the power states of the rechargeable batteries, the charging and discharging paths of the rechargeable batteries are respectively controlled (step S430). wherein, the step S430 further includes providing the rechargeable batteries one by one, respectively, 13/21 201208228 And a second conduction path, wherein the second conduction path does not pass through the battery path of the rechargeable battery cell, the selective conduction-conduction path or the second conduction path through the first s (four) of the The rechargeable battery is in the rechargeable battery. When the step is in the preset interval, the battery voltage corresponding to the first battery is turned on: the second conduction corresponding to the first rechargeable battery is turned off: ==== , electric battery #丄弟 rechargeable battery, the first 偻 guide battery management method, please refer to the description of the 槛 槛 槛 槛 之间 本 本 本 本 本 本 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 四 四 四 四 四This bet (four) knows its The coupling relationship between the above elements of the pool door is the direct connection or the electrical connection between the two elements, as long as it can be achieved. The invention is not limited. The technical hand in the above embodiment The present invention is not limited in terms of its function and design requirements. The present invention is not limited. Those skilled in the art after the description of the above embodiments will be referred to other embodiments, and will not be further described herein. «• ΛΑ 4 described in the 'fourth invention' the power state of each range of cells to selectively adjust the current conduction path of its battery module, thereby avoiding damage to a single rechargeable battery, charging or over-discharging. The invention has the effect of extending the overall electrical group life and can provide the power status of each rechargeable battery to the user. Although the preferred embodiment of the present invention has been (4) as above, the invention is not limited to 14/21 201208228. For example, those skilled in the art can make some modifications and adjustments without departing from the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a battery management circuit according to a first embodiment of the present invention. FIG. 2 is an array type according to a first embodiment of the present invention. Fig. 3 is a schematic diagram of a battery module according to a second embodiment of the present invention. Fig. 4 is a flow chart showing a battery management method according to a fourth embodiment of the present invention. [Description of main component symbols] 100: Battery management circuit 102: Rechargeable battery 110 : Control circuit 112 : Current sensing unit 114 : Voltage sensing unit 116 : Control unit 120 : Conduction circuit 200 : Battery module 210 : Power supply unit 230 : Array controller 300 : Battery module 310 : Multiple Battery pack 320: Backup battery pack 330: Power supply path circuit 340: Controller 350: Voltage sensing unit 15/21 201208228 CH1 to CH13: Channel SW1: First switch SW2: Second switch SW3: Third switch T1: First Terminal T2: second end P1: first conduction path P2: second conduction path S410~S430: flowchart step