201242216 六、發明說明： 【發明所屬之技術領域】 本發明係一種電池介面、其包括有··二極體組成之電壓 衡電路、電池(Cell)為由化學能轉換為電能之二次電池、 發明為利用電壓平衡電路連接在二電池並聯連接電路的中 間、並且其中間一端與外正電壓端或外負電壓端連接做 池充電或放電之連接介面；電壓平衡電路具有三端接點 徵、其令第1端與第2端連接於二只電池並聯之間、第3端 為中點端連接於外正電壓端或外負電壓端、能達到做為 電月b與外端電能裝置之連接介面之功能、本發明在其二尸 池並聯放置或充電或放電下能消除電池環流產生、^ ^豆 電池充電或放電之效率、減少其環流損失。 同八 【先前技術】 如圖1所示，為習知電池並聯連接電路、其有以下之 1. 電池EA與電池EB並聯、在其進行充電時、其電池以、輿 池EB均會產生環流損耗。 、€ 2. 自1.之連接可知、當二只並聯電池放電於負載時、其並 一只電池之間亦會產生環流、而造成損耗。 3聯自L口之If可知、#二只並魏池在無負制路時、其並 J〜、電池之間亦會產生環流、⑽電池所蓄存之電能耗 盡、而造成應用之不便。 月耗 【發明内容】 流電下能消除電池環 裝置之連接介面達到做為電池電能與外端電能 本發明之目的為·三極體之順向電壓降、以執行二只電池 201242216 因ϊΐ需並聯時、利用二極體之順向電壓降、可使 一rf =賴、而消除三只電池之環流損失。 本發明有下列之特徵： 以第1 —極體與第2二極體串聯連接之順向電壓降與 第d二極體與第4二極體串聯連接之順向電壓降_ 反並，連接於二只電池之間、而使二只電池不產生環流、 ^行二只電池因電壓不同而需並聯時、因二極體之順向 電壓降之隱、而消除二?、電池並聯之環流損失。 2. 首創將第1二極體的陰極端與第2二極體的陽極端盥第3 j體的陽極端與第4二極體的陰極端連接、做為二只電 池充電或放電電路之電性連接點。 3. ，發明所實施之二極體為pN型二極體或蕭特基二極體 (Schottky diode)或齊納二極體(Zener diodes)或變容二 巧體CVaractor diodes}或隧道二極體(Tunnel 或 瞬間電壓保護二極體(Transient voltage suppressi〇n diodes)等。 4. 本發明電池介面所指之f池係為二次電池（&⑽㈣201242216 VI. Description of the Invention: [Technical Field] The present invention is a battery interface, which comprises a voltage-balance circuit composed of a diode, and a battery is a secondary battery that is converted into chemical energy by chemical energy. The invention is characterized in that the voltage balance circuit is connected in the middle of the parallel connection circuit of the two batteries, and one of the intermediate ends is connected with the external positive voltage terminal or the external negative voltage terminal to make a connection interface for charging or discharging the battery; the voltage balance circuit has a three-terminal connection point, The first end and the second end are connected between the two batteries in parallel, and the third end is connected to the external positive voltage terminal or the external negative voltage terminal at the midpoint end, and can be used as the electric moon b and the external power device. The function of the connection interface, the invention can eliminate the generation of the battery circulation, the efficiency of charging or discharging the bean battery, and reduce the circulation loss thereof when the two corpses are placed in parallel or charged or discharged. Same as the above [Prior Art] As shown in Fig. 1, the conventional battery parallel connection circuit has the following 1. The battery EA is connected in parallel with the battery EB, and when it is charged, the battery and the battery EB are both circulated. loss. , 2. 2. Since the connection of 1. It can be seen that when two parallel batteries are discharged to the load, a circulation will occur between them and a battery will cause loss. 3 If you can know from the L port, #二和魏池, when there is no negative road, it will also produce a circulation between the battery and the battery. (10) The power stored in the battery is exhausted, which causes the inconvenience of application. . Monthly consumption [Summary of the invention] The connection interface of the battery ring device can be eliminated under the galvanic current to achieve the battery power and the external power. The purpose of the invention is to reduce the forward voltage of the triode to perform two batteries 201242216 When connected in parallel, using the forward voltage drop of the diode, an rf = lam can be used to eliminate the circulating current loss of the three batteries. The present invention has the following features: a forward voltage drop connected in series with the first pole and the second diode and a forward voltage drop connected in series with the d dipole and the fourth diode. Between the two batteries, the two batteries do not generate a circulating current, and when the two batteries need to be connected in parallel due to different voltages, the voltage drop in the forward direction of the diode is eliminated, and the parallel flow of the battery is eliminated. loss. 2. Firstly, the cathode end of the first diode and the anode end of the second diode are connected to the anode end of the third body and the cathode end of the fourth diode, and are used as two battery charging or discharging circuits. Electrical connection point. 3. The diode implemented by the invention is a pN type dipole or a Schottky diode or a Zener diode or a CVaractor diode or a tunnel dipole. Body (Transient voltage suppressi diodes), etc. 4. The battery cell referred to in the present invention is a secondary battery (&(10)(4)
Ce 11 s )、亦就是所有之二次電池皆可應用本發明電池介 面0 【實施方式】 如圖2所示、為本發明電池介面之第丨實施例、自圖中可 知、第1電池E1之正電壓端接到第1二極體D1之陽極端、 第1二極體D1之陰極端與第2二極體D2之陽極端連接、第 2 —極體D2之陰極端連接到第2電池E2之正電壓端；第1電 池E1之正電壓端接到第3二極體D3之陰極端、第3二極體 D3之陽極端與第4二極體D4之陰極端連接、第4二極體D4 之陽極端連接到第2電池E2之正電壓端；第丨二極體D1之陽 極^與第3二極體D3之陰極端連接、稱為電壓平衡電路 (Voltage Balance Circuit，VBC)之第 1 端、第 2 二極體 D2 201242216 與第第ι4 M之陽極端連接、稱為電壓平衡電路 稱為電壓平衡f路第 =之陰極端連接、 如圖2所示、月電壓端VP。 點VP、經第3二極^ D3之I乍原^為：電流自外正電壓 端到第1電池E1之正電壓端、到第/二:$極體D3之陰極 回到第1電池E1之夕^^^電㈣之負電麗端、 VP、經第2二極體D2 ^陽極#而$12;另一電流自外正電壓端 n 遛1^之陽極知、到第2二極體D2之昤 到第2電池拉之正電壓端、到第2電池E2t負 到第2電池E2之外負電壓端VN、而完成充2電之負電私、回 1：= 2所示、本發明之放電動作原理為：第1電池E1之 之輸第丨二極體D1之陽極端第到第電= D1之陰極端、到外正電壓端vp、供 示）、回到第1雷;·★ P1夕从&雨r~ 心〇又疋負载（圖中無表 雷L i 2 外負電壓端VN與第1電池E1之負 D4之陽極端、到第4二極龍H、！第4 一極體 供應設定靖财絲示）二 端第2電池Κ之負健端、而完成放電程ί J /斤示、第1二極體D1之陽極端與第1電池El之正Ce 11 s ), that is, all of the secondary batteries can be applied to the battery interface 0 of the present invention. [Embodiment] As shown in FIG. 2 , the second embodiment of the battery interface of the present invention, as shown in the figure, the first battery E1 The positive voltage terminal is connected to the anode terminal of the first diode D1, the cathode terminal of the first diode D1 is connected to the anode terminal of the second diode D2, and the cathode terminal of the second body D2 is connected to the second terminal. The positive voltage end of the battery E2; the positive voltage end of the first battery E1 is connected to the cathode end of the third diode D3, the anode end of the third diode D3 is connected to the cathode end of the fourth diode D4, and the fourth The anode end of the diode D4 is connected to the positive voltage terminal of the second battery E2; the anode of the second diode D1 is connected to the cathode end of the third diode D3, and is called a voltage balance circuit (VBC). ) The first end and the second diode D2 201242216 are connected to the anode end of the first ι4 M, which is called the voltage balance circuit, which is called the voltage balance f-channel = cathode terminal connection, as shown in Fig. 2, the monthly voltage terminal VP. Point VP, I through the 3rd diode ^3, the current is: current from the external positive voltage terminal to the positive voltage terminal of the first battery E1, to the cathode of the second /$ pole body D3 back to the first battery E1 The eve of the ^^^^ (4) negative electric terminal, VP, the second diode D2 ^ anode # and $12; the other current from the external positive voltage terminal n 遛 1 ^ anode know, to the second diode D2 After the second battery E2t is pulled to the positive voltage end of the second battery, the second battery E2t is negatively connected to the negative voltage terminal VN of the second battery E2, and the negative charge of the second charge is completed, and the return is 1:=2, and the present invention is The principle of discharge operation is: the anode end of the first battery E1 is switched from the anode end of the second diode D1 to the cathode end of the first electric=D1, to the external positive voltage terminal vp, for display), and back to the first mine; P1 夕 from & rain r~ 〇 〇 疋 load (in the figure no table Lei L i 2 external negative voltage terminal VN and the first battery E1 negative D4 anode end, to the 4th dipole dragon H,! 4 One pole supply setting Jingshen silk shows) the second end of the second battery Κ the negative end, and complete the discharge process ί J / kg shows that the anode side of the first diode D1 and the first battery El
，連接、第2二極體D2之陰極端連接第2電池匕正J 除利7 2二極體⑽之順向電壓降、 而猶一電池之％流產生、其動作原理為：當, the connection, the cathode end of the second diode D2 is connected to the second battery, the positive voltage drop of the second battery (10), and the flow of the battery of the first battery is generated, and the operation principle is as follows:
J端之電壓可能A於或祕第2電池E2 _之賴=EThe voltage at the J terminal may be A or the second battery E2 _ depends on the E
J池E1兩端之電壓大於第2電池E2兩端之電屋U 接將其二電池並聯，必會產生環流而造成環流短路，若 電池E1兩端之電壓大於第2電池E2兩端之電 ^ 特’此時利用第1二極體D1之順向電壓降〇. 7伏特和 二極體D2之順向電壓降〇. 7伏特，合計h 4伏特，^時^為 201242216 有第1二極體D1和第2二極體D2之順 所m t池m兩敵纖第 等，此時不產生環流；若第1電池E1與第2電兩也 電塵相差大、則可採用第！二極體D二電；口從兩知之 一單方向導電串聯連接替代或第2二極體同 極體同一單方向導電_連接替代、而不自 採用二只或多只二極體同一單方向導電 1 t^El 2 體D2可採用二只或多只二極體 1 2-極 代；第3二極體D3之陰極端與第向之導正電接替 第3二極體D3之陽極端與第4二極體 ：連接第 f f ϊ M之陽極端連接第2電池E2之正電^連J用J j體D3與第4二極體D4之順向電壓降、而消 之環流產生，其動作原理為：當第2 f除一電池 ，電池幻兩端之電壓為心特電=;= f f雷與Λΐ二極龍之順向電断合計為h 4伏特來平衡The voltage across the J pool E1 is greater than the voltage of the second battery E2. The second battery is connected in parallel, which will cause a circulating current to cause a short circuit. If the voltage across the battery E1 is greater than the voltage at the two ends of the second battery E2. ^ 特 'At this time using the first diode D1 forward voltage drop 7. 7 volts and diode D2 forward voltage drop 〇 7 volts, total h 4 volts, ^ time ^ for 201242216 have the first two The polar body D1 and the second diode D2 are in the same mt pool m and two enemy fibers are equal, and no circulation occurs at this time; if the first battery E1 and the second battery are also different in electric dust, the first can be used! Diode D two electric; the mouth is replaced by one of the two unidirectional conductive series connection or the second diode is the same unidirectional conduction _ connection instead of two or more diodes in the same single direction Conductive 1 t ^ El 2 body D2 can use two or more diodes 1 2-pole generation; the cathode end of the third diode D3 and the positive conduction of the third direction replace the anode end of the third diode D3 And the fourth diode: the anode terminal connected to the ff ϊ M is connected to the positive electrode of the second battery E2, and the forward voltage drop of the J j body D3 and the fourth diode D4 is generated, and the circulation is generated, Its action principle is: when the 2nd f is divided into a battery, the voltage of the two ends of the battery is the special electric power=;= ff and the forward electric fault of the dipole dragon are balanced by h 4 volts.
兩端之電壓到第3電⑽兩端之電壓，使J ίϊ:::右第1電池E2兩端之電壓與第3電池Μ兩端之 電壓相差大、則可採用第3二極體D3 = 一單方向導電串聯連接替代或第4二& 極體同-單方向導電串聯連接替代、二=一若第或 1 或二極體同方向導電並聯連接替代;若第 電池E1與第2電池E2之充電或放電電流大 ，一 2 ㈣可採用二只或多只二極體同，4 :才】 3第1電池E1兩端之電壓與第2二==! 3=電電流大、則第1、第2、第3、第4二極體ΐ 夕只二$同;單方向導電並聯連接、再將並聯 3The voltage across the two ends to the voltage of the third power (10), so that J ϊ ϊ ::: the voltage across the first battery E2 and the voltage across the third battery 相 the difference between the two ends, the third diode D3 can be used = A single-directional conductive series connection is substituted or the 4th & pole body is the same as the single-direction conductive series connection, the second = 1 or the 1 or the diode is replaced by the same direction conductive parallel connection; if the first battery E1 and the second The charging or discharging current of the battery E2 is large, one (2) can be the same as two or more diodes, 4: only] 3 the voltage of the first battery E1 and the second two ==! 3 = the electric current is large, Then the first, second, third, and fourth diodes are only two equals; the single-directional conductive parallel connection, and then parallel connection 3
Iff ' M'] ^ 3 ^ ^ 4 -極體以二只或多只同-單方向導電串聯連接替代。 201242216 知、Hi 面之第2實施例、自圖中可 可串聯第2多只電池E2=、&、電^丽、第mE2亦 其二組之間連接有電壓二第J f只電池腦二組並聯連接、 與圖2所述之電ί 路、其間之電壓平衡電路原理 _所示同，不資述、 知、將圖2之第i二== 之第3實施例、自圖中可 第1電池幻到第2電= 體⑽對調位置、其 與第2二極體D2之順2 =向電壓降為第1二極體D1 E1之順向電壓降為第^電^^第2電池E2到第1電池 厂堅降、其電壓平衡電路^體圖D4= 3二==之順向電 如圖5所示、為本發明雷、^1蝴、而不贅述。 知、將圖2之第2二^^丨面之第4實施例、自圖中可 第2電池E2到第i電^ =第4^_極舰對調位置、其 與第3二極體D3之;;向】= 順向甘!壓降為第4二極體D4 E2之順向電屋降為第】其第1電池E1到第2電池 壓降、其電2二極麵之順向電 如圖6所示、為本發明電池述: 知、第1電油PI + "卸之第5貫施例、自圖中可 壓端連接到外1電 1二極體D1之陽極端ΪΛ1電池E1之負電壓端接到第 體D2之陽極端連接第第2D1之陰極端與第2二極 池E2之負電_.第丨^ 之陰極端連接到第2電 極端連接、第4二極體D4之陽極端之陰 _;第1二極體D1之陽極t之負 接、稱為電麗平衡雷跋夕笛7 一極體D3之陰極端連 第4二極體D4之陽極媳德而抵f 2二極體D2之陰極端與 第1二極體m 電壓平衡電路之第2端、 之陰細與第2二極體D2之陽極端與第3二 201242216 第 =體D4之陰極端連接、稱為賴 千衡電路之第3端、連接到外負電壓端VN。 點VP圖明之充電動作原理為：電流自外正電壓 點VP、經第1電池E1之正電壓端、 「： 到第1二極體D1之陽極端到第i=電壓^ 外負電，vN;另-電流自外正電4 m 之正電壓端、第2電池E2之負電壓 、，=4也E2 極端、到第4二極體μ之降搞础 乐極體1)4之防 完成充電程序。 -極端、_外負電壓端VN、而 如，6所示、本發明之放電動作原理為：帛丨電池以之 正?气=電„正電壓端VP、供應設定負載，圖中無表 TLVdsUS VN、經第3二極體D3之陽極端、到第3 一極體D3之陰極端、回到第！電池&之負電壓 Ϊ(自圖第中ΐ也之f k電壓端 '經外正電壓端VP，供應設定負 極端、到第2二鋪D2之_、回 壓端、而完成放電程序。 ⑺电蘭2之負電 如圖6所3、第1二極體D1之陽極與第i電池E1之参雷 接2 之陰極端與第2二極體D2之陽極 1連ί由ί ΐ體之陰極端連接第2電池E2之負電壓 :體01與第2二極體D2之順向電壓降、可 =:ί$ϊϊί環流產生;若第1電池E1與第2電池E2 二極㈣為二科 電池E1與第2電池；而不自限;若第】 m、ί _同—單方向導電並聯連接替代. 右第1電:與第2電池Ε2之充電或放電電流大、則第: 二極體D2可採用二只或多只二極體同—單方向導電並達 接替代；第3二極體D3之陰極端與第1電池Ε1之負電壓轉 201242216 連接、第3二極體D3之陽極端與第4二極體D4之陰極端連 接、f 4二極體D4之陽極端連接第2電池E2之負電壓端、 利用第3二極體D3與第4二極體D4之順向電壓降、可消除 二電池之間之環流產生；若第1電池E1兩端之電壓與第2 電池E2兩端之電壓相差大、則可採用第3二極體兕為二只 或^只二極體同一單方向導電串聯連接替代、第4二極體D4 為二只或多只二極體同一單方向導電串聯連接替代、而不自 鮮2電池E2之充電或放電電流大、則 第3-極體D3可採用二只或多只二極體同一單方向導電並聯 連接替代;若第丨電池E1與第2電池E2之充電或放電電流 大〔則第4二極體D4可採用二只或多只二極體同一單方向導 電並聯連接替代;若第1電池Ei兩端之電壓與第2電池 兩端之電壓相差大與充電或放電電流大、則第1、第2、第3、 第4二極體可採用二只或多只二極體同—單方向導電並聯連 ΐ二ί將並聯後之二極體以二只或多只同一單方向導電串聯 運接巷抑。 如圖7所示、為本發明電池介面之第6實施例、自圖中可 知、第1電池Ε1可串聯第1多只電池Ε1Ν、第2電池Ε2亦 可串聯第2多只電池Ε2Ν、其第1電池E1串聯第！多只電池 E1N與第2電池E2串聯第2多只電池E2N二組並聯連接、 其二組之間連接有電壓平衡電路、而電壓平衡電路原理與圖6 所述之電壓平衡電路原理相同、而不贅述。 如圖8所示、為本發明電池介面之第7實施例、自圖中可 知、將圖6之第1二極體D1與第3二極體D3對調位置、其 第1電池E1到第2電池E2之順向電壓降為第1二極體D1 與第2二極體D2之順向電壓降、其第2電池E2到第丨電池 E1之順向電壓降為第4二極體D4與第3二極體D3之順向電 壓降、其電壓平衡電路原理與圖6相同、而不贅述。 如圖9所示、為本發明電池介面之第8實施例、自圖中可知、 將圖6之第2二極體D2與第4二極體D4對調位置、其第2 201242216 電池E2到第1電池El之順向電壓降為第4二極體D4與第3 二極體D3之順向電壓降、其第1電池E1到第2電池E2之 順向電壓降為第1二極體D1與第2二極體D2之順向電壓降、 其電壓平衡電路原理與圖6相同、而不贅述。 【圖式簡單說明】 圖1 為習知電池並聯連接電路。 圖2 為本發明電池介面之第1實施例。 圖3 為本發明電池介面之第2實施例。 圖4 為本發明電池介面之第3實施例。 圖5 為本發明電池介面之第4實施例。 圖6 為本發明電池介面之第5實施例。 圖7 為本發明電池介面之第6實施例。 圖8 為本發明電池介面之第7實施例。 圖9 為本發明電池介面之第8實施例。 【主要元件符號說明】 EA 習知電池。 EB 習知電池。 E1 第1電池。 E2 第1電池。 E1N 第1多只電池。 E2N 第2多只電池。 D1 第1二極體。 D2 第2二極體。 D3 第3二極體。 D4 第4二極體。 VP 外正電壓端。 VN 外負電壓端。Iff ' M'] ^ 3 ^ ^ 4 - The polar body is replaced by two or more identical-unidirectional conductive series connections. 201242216 The second embodiment of the known and Hi surface, the second plurality of batteries E2=, &, the electric ^, the mE2 are also connected to the voltage between the two groups. The parallel connection of the group, the circuit shown in Fig. 2, and the principle of the voltage balance circuit between them are the same, and the third embodiment of the second i== of Fig. 2 is not mentioned, and the figure can be The first battery phantom to the second electric = body (10) swap position, and the second diode D2 cis 2 = the voltage drop to the first diode D1 E1 forward voltage drop is the second ^ ^ ^ 2 Battery E2 to the first battery factory to lower, its voltage balance circuit ^ body diagram D4 = 3 two = = forward power as shown in Figure 5, the invention is Ray, ^1 butterfly, and will not be described. It is to be understood that the fourth embodiment of the second and second sides of Fig. 2, the second battery E2 from the figure, the second battery E2, the fourth power source, and the third diode D3 ;; === 顺向! The pressure drop is the fourth diode D4 E2 forward electric house is reduced to the first] its first battery E1 to the second battery pressure drop, its electric 2 pole surface direction As shown in Fig. 6, the battery of the present invention is as follows: the first electric power PI + " the fifth embodiment of the unloading, the pressure end of the figure is connected to the anode end of the outer electric 1 dipole D1负1 The negative voltage terminal of battery E1 is connected to the anode end of the first body D2 and the negative terminal of the second diode E2 is connected to the cathode terminal of the second diode E2. The cathode end of the second electrode is connected to the second electrode terminal, and the fourth electrode is connected. The anode of the anode D4 is negative; the negative junction of the anode t of the first diode D1 is called the electric balance, and the cathode of the first pole D3 is connected to the anode of the fourth diode D4. The anode end of the f 2 diode D2 and the second end of the first diode m voltage balancing circuit, the cathode of the second diode D2 and the anode end of the second diode D2 and the third two 201242216 body D4 The cathode terminal is connected, which is called the third terminal of the Lai Qianheng circuit, and is connected to the external negative voltage terminal VN. The charging operation principle of the point VP is as follows: current from the external positive voltage point VP, through the positive voltage terminal of the first battery E1, ": to the anode terminal of the first diode D1 to the i-th voltage ^ external negative power, vN; In addition, the current is from the positive voltage terminal of 4 m external positive voltage, the negative voltage of the second battery E2, the voltage of =4 is also E2, and the voltage of the fourth diode is reduced to 1). Program - Extreme, _ external negative voltage terminal VN, and as shown in 6, the discharge operation principle of the present invention is: 帛丨 battery with positive gas = electricity „ positive voltage terminal VP, supply set load, no Table TLVdsUS VN, through the anode end of the 3rd diode D3, to the cathode end of the 3rd polar body D3, back to the first! The negative voltage of the battery & (from the middle of the figure, the fk voltage terminal is supplied to the positive terminal VP, the negative terminal is supplied, and the second terminal is connected to the second terminal, D2, and the return terminal, and the discharge process is completed. (7) The negative current of the electric blue 2 is as shown in Fig. 6. 3, the anode of the first diode D1 and the cathode end of the i-th battery E1 are connected to the anode of the second diode D2, and the anode of the second diode D2 is connected by the yin body. Extremely connected to the negative voltage of the second battery E2: the forward voltage drop of the body 01 and the second diode D2 can be generated by: ί$ϊϊί circulating current; if the first battery E1 and the second battery E2 are two (four) are two Battery E1 and second battery; not self-limiting; if the first m, ί _ same - single-directional conductive parallel connection instead. Right first electric: and the second battery Ε 2 charging or discharging current is large, then: dipole The body D2 can be replaced by two or more diodes in one direction - single direction conduction; the cathode end of the third diode D3 is connected to the negative voltage of the first battery port 1 to 201242216, and the third diode D3 is connected. The anode end is connected to the cathode end of the fourth diode D4, the anode end of the f 4 diode D4 is connected to the negative voltage terminal of the second battery E2, and the forward direction of the third diode D3 and the fourth diode D4 is used. Voltage drop, can be eliminated The circulation between the two batteries is generated; if the voltage across the first battery E1 is different from the voltage across the second battery E2, the third diode can be used as two or two diodes in the same single direction. The conductive series connection is replaced, and the fourth diode D4 is replaced by two or more diodes in the same single direction conductive series connection, and the charging or discharging current of the fresh battery 2 is not large, and the third pole body D3 can be Two or more diodes are replaced by the same single-directional conductive parallel connection; if the second battery E1 and the second battery E2 have large charging or discharging currents, the second diode D4 can adopt two or more diodes. The body is replaced by a single-direction conductive parallel connection; if the voltage across the first battery Ei is different from the voltage across the second battery and the charging or discharging current is large, the first, second, third, and fourth diodes are Two or more diodes can be used in the same way—one-way conductive parallel connection, and the two parallel poles are connected in two or more single-directional conductive series in the same direction. As shown in Fig. 7, According to the sixth embodiment of the battery interface of the present invention, it can be seen from the figure that the first battery pack 1 can be connected in series with the first plurality of batteries Ε1 Ν, the second battery Ε2 may be connected in series with the second plurality of batteries Ε2Ν, and the first battery E1 is connected in series! The plurality of batteries E1N and the second battery E2 are connected in series with the second plurality of batteries E2N in parallel, and between the two groups The voltage balancing circuit is connected, and the principle of the voltage balancing circuit is the same as that of the voltage balancing circuit shown in FIG. 6. The seventh embodiment of the battery interface of the present invention, as shown in FIG. The forward voltage drop of the first diode E1 and the second battery E2 in the first diode D1 and the third diode D3 in FIG. 6 is the smoothness of the first diode D1 and the second diode D2. The voltage drop, the forward voltage drop of the second battery E2 to the second battery E1 is the forward voltage drop of the fourth diode D4 and the third diode D3, and the principle of the voltage balance circuit is the same as that of FIG. Do not repeat them. As shown in FIG. 9, the eighth embodiment of the battery interface of the present invention, as can be seen from the figure, the second diode D2 of FIG. 6 and the fourth diode D4 are aligned, and the second 201242216 battery E2 to the second 1 The forward voltage drop of the battery El is the forward voltage drop of the fourth diode D4 and the third diode D3, and the forward voltage drop of the first battery E1 to the second battery E2 is the first diode D1. The forward voltage drop of the second diode D2 and the principle of its voltage balance circuit are the same as those of FIG. 6, and will not be described again. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a conventional battery parallel connection circuit. Fig. 2 shows a first embodiment of the battery interface of the present invention. Figure 3 is a second embodiment of the battery interface of the present invention. Figure 4 is a third embodiment of the battery interface of the present invention. Figure 5 is a fourth embodiment of the battery interface of the present invention. Figure 6 is a fifth embodiment of the battery interface of the present invention. Figure 7 is a sixth embodiment of the battery interface of the present invention. Figure 8 is a seventh embodiment of the battery interface of the present invention. Figure 9 is an eighth embodiment of the battery interface of the present invention. [Main component symbol description] EA conventional battery. EB conventional battery. E1 1st battery. E2 1st battery. E1N The first more than one battery. E2N The second and second battery. D1 1st diode. D2 2nd dipole. D3 3rd dipole. D4 4th diode. VP external positive voltage terminal. VN external negative voltage terminal.