201128898 六、發明說明： 【發明所屬之技術領域】 本發明是有關於-種電池充電系統，特別是指一種用 於多數電池串聯充電的電池充電平衡系統。 【先前技術】 一般充電電路對多數串聯的電池做充電時，經常是提 供-固^的㈣與所有電池串聯，—旦其中—電池完成充 電時’就表示該充電電路不需要再對該電池提供電力，藉 以避免對該電池過度充電，此時充電電路會採用消耗電力 的設計，利用-電阻來消耗原本提供該電池充電的電力， 依此類推，當該等電池完成充電的數目越多時，轉移到該 電阻上消耗的電力也就越多，然而轉移到該電阻上的電力 越多就會產生高溫，且消耗在該電阻上的電力形同虛耗， 無法進#產生其它功能，所以一般這類型的充電電路都 具有容易產生高溫且虛耗電力高的缺點。 【發明内容】 因此本發明的目的是在於提供一種能夠避免電池過 度充電且減少電力虛耗的電池充電平衡系統。 於疋本發明電池充電平衡系統包含一供電單元、一 充電控制單元、—充電界面’及多數檢知單元。 該供電單疋是用於接收一交流電源並轉換輸出-直流 電源。 該充電控制單元包括一電源輸入埠、一電源輸出埠， 及-電源回授崞，該電源輸入槔是用於接收該直流電源， 201128898 該電源輸出埠是用认认， - 平疋用於輸出一充電電源。 該充電界面是用於接收該充電電源以提供多數電池争 聯充電，並包括多數分別接觸每一電池正極與負極的導電 端。 母檢知單元包括一電力檢知瑋、一電力導出埠，及 -檢知控制器，該電力檢知埠是電連接於對應電池所配合 的導電端’該電力導出埠是電連接於該充電控制單元的電 源回授埠，該檢知控制器是經由該電力檢知埠測得對應電 池的電量，並内建有—電量標準範圍，其中，當該檢知控參 制器經由該電力檢知埠測得該電池的電量符合該電量標準 範圍時，該檢知控制器會使提供到該電池的電力轉換到該 電力導出埠形成一回授電源，該回授電源是經由該電源回 授埠併入該充電電源。 本發明的有益效果在於··透過每一檢知單元測得對應 電池的電量，以及在對應電池完成充電後將電力轉移到該 充電電源的機制，就可以使得該充電電源獲得額外補充， 於是該充電控制單元對該供電單元所提供的直流電源之電 _ 力需求就會降低，所以當有越來越多電池完成充電時，該 供電單元所提供的總電力也會配合遞減，進而達到避免電 池過度充電且減少電力虛耗的優點。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之較佳實施例的詳細說明中，將可清楚 的呈現。 4 201128898 如圖 1 n ο 〇 „ _ 、3所示，本發明電池充電平衡系統2〇〇的 較佳實施例包含—供電單元2G、-充電控制單元3〇、一充 電界面4〇 '多數檢知單元5〇 ’及多數二極體60。 該供電單70 2〇是用於接收一交流電源並轉換輸出一直 机電源de該供電單元20包括一控制璋21，該控制槔21 是用於控制輪出該直流電源的電力大小，在本實施例中 ’控制的方式是採用脈波寬度調變（PWM)技術。 為充電控制單元3〇包括一電源輸入蜂31、一電源輸出 淳32、-電源回授淳33、一傳輪琿34，及一電連接於該控 制埠21的供電控制埠35。 該電源輸入蟑31是用於接收該直流電源Vdc。 該電源輸出璋32是用於輸出—充電電源Vee。 “充電界面40是用於接收該充電電源Vee以提供多數 電池9〇举聯充電’並包括多數分別接觸每-電池90正極 ,、負極的導電# 41，在本實施例中共有三個電池9。，實際 應用於該等電池90串聯的數量是配合該充電界面40不: 限。 ▲如圖1、2、3、4所示，該等檢知單元5〇是電連接於 該充電界面40與該充電控制單元％之間，每—檢知單元 50包括-電力檢知埠51、一電力導出埠52、—檢知控制器 53 ’及一狀態埠54。 電端41 β電力檢知琿51是電連接於對應電池％所配合的導 每電力導出埠52是經由其中一個二極體電連接 201128898 於該充電控制單元30的電源回授埠33形成順向偏壓，並 經由該二極體60隔離其它電力導出埠52所輸出的回授電 源，實際製造時，該等二極體6〇也可以分別設置在每一電 壓轉換器55内。 該檢知控制器53是經由該電力檢知埠51測得對應電 池90的電量，並内建有一電量標準範圍。 該狀態埠54是輸出一隨著該電池90電量而變化的狀 態訊號，該充電控制單元3〇的傳輸埠34是接收每一狀態 埠54輸出的狀態訊號以獲得每一電池9〇的電量變化。 該電壓轉換器55是形成該回授電源、，該電壓轉換器 55在本實施例中是採用隔離式升壓，也就是透過一變壓器 (圖未示）升壓，該回授電源Vb是升壓到與該充電電源 Vcc相同的電壓。 以下進一步說明本發明電池充電平衡系統2〇〇的使用 情形’其中圖1為了方便說明使用情形’因此採用粗黑線 表示來簡化該等檢知單元5G的狀態蟑54與該充電控制單 元30的傳輸埠34的連接關係。 當該檢知控制器53經由該電力檢知埠51測得該電池 90的電置符合s亥電量標準範圍時，該檢知控制器$ 1會使提 供到該電池90的電力轉換到該電力導出埠52形成一回授 電源Vb ’該回授電源Vb是經由該電源回授埠併入該充 電電源vcc。 此時由於該供電單元2〇的控制槔21電連接於該供電 控制瑋35 ’所以該充電控制單元3()在該電源回授璋33所 201128898 ’會經由該供電控制埠35改 使該供電單元20輸出該直 獲得的回授電源％電量增加時 變對該控制璋21的輪出訊號， 流電源Vdc的電量降低。 藉it透過每一檢知單元5〇測得對應電池9〇的電量 以及在對應電池9〇完成充電後將電力轉移到該充電電源 v“的機制’就可以使得該充電㈣U得額外補充，於201128898 VI. Description of the Invention: [Technical Field] The present invention relates to a battery charging system, and more particularly to a battery charging balance system for charging a plurality of batteries in series. [Prior Art] When a general charging circuit charges most of the batteries in series, it is often provided with a solid (four) in series with all the batteries, and when the battery is fully charged, it means that the charging circuit does not need to provide the battery. Power, in order to avoid overcharging the battery, the charging circuit will adopt a power-consuming design, using -resist to consume the power that originally provided the battery charging, and so on, when the number of charging of the battery is more, The more power is transferred to the resistor, the more power is transferred to the resistor, the higher the power is generated, and the power consumed on the resistor is inconsistent, and it is impossible to generate other functions, so generally This type of charging circuit has the disadvantage of being prone to high temperatures and high power consumption. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a battery charge balancing system capable of avoiding excessive battery charging and reducing power consumption. The battery charging balance system of the present invention comprises a power supply unit, a charging control unit, a charging interface, and a plurality of detecting units. The power supply unit is for receiving an AC power source and converting the output-DC power source. The charging control unit comprises a power input port, a power output port, and a power supply feedback port, wherein the power input port is for receiving the DC power source, 201128898, the power output port is used for recognition, - the flat port is used for output A charging power supply. The charging interface is for receiving the charging power source to provide a majority of battery contiguous charging, and includes a plurality of conductive ends that respectively contact the positive and negative terminals of each battery. The mother detecting unit includes a power detecting unit, a power guiding unit, and a detecting controller, wherein the power detecting unit is electrically connected to the conductive end of the corresponding battery. The power output is electrically connected to the charging. The power supply feedback of the control unit, the detection controller detects the power of the corresponding battery via the power detection, and has a built-in power standard range, wherein when the detection control controller passes the power inspection When the battery is found to meet the power standard range, the detection controller converts the power supplied to the battery to the power distribution to form a feedback power supply, and the feedback power is fed back through the power supply.埠 Incorporate the charging power source. The beneficial effects of the present invention are that the power of the corresponding battery is measured by each detecting unit, and the mechanism for transferring the power to the charging power source after the corresponding battery is completed is charged, so that the charging power source can be additionally supplemented, and thus the The charging control unit reduces the power demand of the DC power supply provided by the power supply unit, so when more and more batteries are completed, the total power provided by the power supply unit is also reduced, thereby avoiding the battery. Overcharge and reduce the power consumption. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. 4 201128898 As shown in FIG. 1 n ο „ _ , 3, the preferred embodiment of the battery charging balance system 2 本 of the present invention includes a power supply unit 2G, a charging control unit 3 〇, a charging interface 4 〇 ' majority inspection The power unit 70 2〇 is for receiving an AC power supply and converting the output of the all-wheel power supply. The power supply unit 20 includes a control unit 21, and the control unit 21 is used for Controlling the power of the DC power source, in the embodiment, the method of controlling is to use a pulse width modulation (PWM) technology. The charging control unit 3 includes a power input bee 31, a power output 淳32, a power supply feedback 33, a transmission rim 34, and a power supply control unit 35 electrically connected to the control unit 21. The power input port 31 is for receiving the DC power source Vdc. The power output port 32 is for Output - charging power source Vee. "Charging interface 40 is for receiving the charging power source Vee to provide a majority of battery 9 〇 联 charging" and includes a majority of each of the battery 90 positive, respectively, the negative conductivity # 41, in this embodiment There are three batteries in the middle. Actually, the number of series connection of the batteries 90 is matched with the charging interface 40. ▲ As shown in FIG. 1, 2, 3, and 4, the detecting unit 5 is electrically connected between the charging interface 40 and the charging control unit %, and each detecting unit 50 includes a power detecting unit 51. , a power export port 52, a detection controller 53 'and a state 埠 54. The electric terminal 41 β electric power detecting unit 51 is electrically connected to the corresponding battery %. The electric power is distributed. The electric power is output to the power supply unit 52 via one of the two diodes. The voltage is biased, and the feedback power output from the other power outlets 52 is isolated via the diode 60. In actual manufacturing, the diodes 6A can also be disposed in each of the voltage converters 55. The detection controller 53 measures the amount of electricity of the corresponding battery 90 via the power detection 埠 51, and has a built-in power standard range. The state 埠54 is a status signal that outputs a change with the battery 90. The transmission 埠34 of the charge control unit 3 receives the status signal outputted by each state 埠54 to obtain a change in the amount of power of each battery. . The voltage converter 55 forms the feedback power supply. In the embodiment, the voltage converter 55 uses an isolated boost, that is, a booster through a transformer (not shown). The feedback power supply Vb is liter. It is pressed to the same voltage as the charging power source Vcc. The following is a further description of the use case of the battery charging balance system 2 of the present invention, wherein FIG. 1 is used to simplify the use case. Therefore, the state of the detecting unit 5G and the state of the charging control unit 30 are simplified by a thick black line. The connection relationship of the port 34 is transmitted. When the detection controller 53 detects that the electric setting of the battery 90 conforms to the s electric power standard range via the electric power detection 埠 51, the detection controller $1 converts the electric power supplied to the battery 90 to the electric power. The output port 52 forms a feedback power source Vb. The feedback power source Vb is incorporated into the charging power source vcc via the power source feedback. At this time, since the control unit 21 of the power supply unit 2 is electrically connected to the power supply control unit 35', the charging control unit 3() will change the power supply via the power supply control unit 35 at the power supply feedback unit 3328898'. The unit 20 outputs the round-trip signal to the control port 21 when the feedback power source % power amount obtained is increased, and the power amount of the stream power source Vdc is lowered. By charging each of the detecting units 5 to measure the amount of electricity corresponding to the battery 9 以及 and transferring the power to the charging power source v “the mechanism” after the corresponding battery 9 〇 is completed, the charging (4) U can be additionally supplemented.
是該充電控制單元2〇對該供電單元3〇所提供的直流電源 VdC之電力需求就會降低，所以當有越來越多電池90完成 充電時，該供電單元2〇所提供的總電力也會配合遞減，進 而達到避免電池9〇過度充電且減少電力虛耗的優點。 惟以上所述者，僅為本發明之較佳實施例而已，當不 知以此限定本發明貫施之範圍，即大凡依本發明中請專利 範圍及說明書内容所作之簡單的等效變化與修飾，皆仍屬 本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1疋一不意圖，說明本發明電池充電平衡系統的較 佳實施例； 圖2是一示意圖，說明該較佳實施例中，一供電單元 的組成架構； 圖3 示意圖，說明該較佳實施例中，一充電控制 單元的組成架構；及 圖4是-示意、圖，說明該車交佳實施例巾，一檢知單元 的組成架構。 201128898 【主要元件符號說明】 200… …·電池充電平衡 40··. …··充電界面 糸統 41 ·.... ····導電端 20…… •…供電單元 50…. .....檢知單元 21…… …控制埠 51 •… …電力檢知谭 Vdc ···' …·直流電源 52*···· …·電力導出埠 30…… …充電控制單元 53…" • 仏知控制器 31…… …電源輸入埠 54 …·狀態埠 32…… …電源輸出埠 55··· -…電壓轉換器 33…… …電源回授璋 vb····· •…回授電源 34…… …傳輸埠 60••… •…二極體 35…… …供電控制埠 90…" •…電池 vcc.···. …充電電源 8The power demand of the DC power supply VdC provided by the charging control unit 2〇 is reduced, so when more and more batteries 90 are fully charged, the total power provided by the power supply unit 2〇 is also It will cooperate with the decrement, so as to avoid the advantage that the battery 9〇 is overcharged and the power consumption is reduced. However, the above is only the preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, that is, the simple equivalent change and modification according to the scope of the patent and the contents of the specification in the present invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a preferred embodiment of a battery charging balance system of the present invention; FIG. 2 is a schematic view showing the composition of a power supply unit in the preferred embodiment; The structure of a charging control unit in the preferred embodiment is illustrated; and FIG. 4 is a schematic diagram showing the composition of the vehicle, and the composition of the detecting unit. 201128898 [Description of main component symbols] 200... ...·Battery charge balance 40··. ...··Charging interface 41 41 ·.... ···· Conductive terminal 20... •...Power supply unit 50.... .. detection unit 21 ... ... control 埠 51 • ... ... power detection Tan Vdc · · · ' ... ... DC power supply 52 * · · · · · power export 埠 30 ... ... charging control unit 53 ... " • 控制器 know controller 31... ...power input 埠 54 ... · state 埠 32 ... ... power output 埠 55 · · · - ... voltage converter 33 ... ... power feedback 璋 vb ····· • back Power supply 34...Transfer 埠60••... •...Lite 35... ...Power supply control ...90..." •...Battery vcc.···....Charging power supply 8