TWI624977B - Active balance charging device - Google Patents
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- TWI624977B TWI624977B TW106106288A TW106106288A TWI624977B TW I624977 B TWI624977 B TW I624977B TW 106106288 A TW106106288 A TW 106106288A TW 106106288 A TW106106288 A TW 106106288A TW I624977 B TWI624977 B TW I624977B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
一種主動式平衡充電裝置及使用所述充電裝置對二次電池充電的方法，二次電池包含一蓄電單元，蓄電單元包含串聯的數個電池模組；主動式平衡充電裝置包含一控制單元、一充電單元、一電壓偵測單元及一溫度偵測單元，其中，控制單元與充電單元耦接，用於控制充電單元，電壓偵測單元與控制單元及各電池模組耦接，用於偵測各電池模組的電壓，溫度偵測單元與控制單元耦接，用於偵測蓄電單元的溫度；充電單元包含一第一充電器、一第一開關、數個第二充電器及數個第二開關，其中，第一充電器與蓄電單元及一外部的電力源耦接，用於對各電池模組充電，第一開關用於變化第一充電器與蓄電單元的電路通/斷，第二充電器及第二開關的數目與電池模組的數目配合，各第二充電器分別與一電池模組及電力源耦接，各電池模組分別與一第二充電器耦接，各第二開關分別用於變化各第二充電器與電池模組的電路通/斷，各電池模組在同一時間只被第一充電器或一第二充電器充電。 An active balance charging device and a method for charging a secondary battery using the charging device, the secondary battery includes a power storage unit, the power storage unit includes a plurality of battery modules connected in series; the active balance charging device includes a control unit, and a a charging unit, a voltage detecting unit and a temperature detecting unit, wherein the control unit is coupled to the charging unit for controlling the charging unit, and the voltage detecting unit is coupled to the control unit and each battery module for detecting The voltage and temperature detecting unit of each battery module is coupled to the control unit for detecting the temperature of the power storage unit; the charging unit includes a first charger, a first switch, a plurality of second chargers, and a plurality of a second switch, wherein the first charger is coupled to the power storage unit and an external power source for charging each battery module, and the first switch is configured to change the circuit of the first charger and the power storage unit to be turned on/off, The number of the second charger and the second switch is matched with the number of the battery modules, and each of the second chargers is coupled to a battery module and a power source, and each of the battery modules and a second charger are respectively The first switch is used to change the circuit of each of the second chargers and the battery module, and each battery module is charged only by the first charger or the second charger at the same time.
藉由首創的迴路，使二次電池的多個電池模組充電平衡。 The battery modules of the secondary battery are charged and balanced by the first circuit.
Description
本發明涉及二次電池的充電裝置，詳而言之，尤指一種主動式平衡充電裝置及使用所述充電裝置對二次電池充電的方法。 The present invention relates to a charging device for a secondary battery, and more particularly to an active balanced charging device and a method of charging a secondary battery using the charging device.
二次電池是一種可反覆充/放電的電池，二次電池大量應用作為各種移動式裝置(例如：汽/機車、行動電話…等)的電力來源。隨著各種移動式裝置的不同用電需求，產生了各種不同規格(例如：蓄電量、電壓…等)的二次電池；二次電池主要包含一蓄電單元及一控制電路，蓄電單元主要包含數個電池芯串聯構成的電池芯串，各電池芯串進一步串聯，蓄電單元用於蓄積電力，控制電路係為電子電路，控制電路與蓄電單元電性連接，蓄電單元藉由控制電路與外部的用電設備或充電裝置電性連接，據使蓄電單元充/放電。 The secondary battery is a battery that can be repeatedly charged/discharged, and the secondary battery is widely used as a power source for various mobile devices (for example, steam/locomotives, mobile phones, etc.). With the different power requirements of various mobile devices, secondary batteries of various specifications (for example, power storage, voltage, etc.) are generated; the secondary battery mainly includes a power storage unit and a control circuit, and the power storage unit mainly includes several The battery cells are connected in series, and the battery cells are further connected in series. The power storage unit is used for accumulating electric power, the control circuit is an electronic circuit, the control circuit is electrically connected to the power storage unit, and the power storage unit is controlled by the control circuit and the external device. The electrical device or the charging device is electrically connected, and the power storage unit is charged/discharged.
二次電池進行充電時，需要使各電池芯串的充電平衡，避免單一電芯串的電池芯充電過度，影響電池芯的壽命及充電的安全性，習知充電裝置採用消耗電力手段或中止充電手段達到各電池芯串充電平衡的目的，其中，消耗電力手段主要是利用耗能形式的平衡電路將電壓到達預設飽和電壓的電池芯串的電力予以消耗，中止充電手段則是利用迴路設計，使電壓到達預設飽和電壓的電池芯串中止充電。 When charging the secondary battery, it is necessary to balance the charging of each battery string to avoid overcharging of the battery core of the single battery string, affecting the life of the battery core and the safety of charging. The conventional charging device uses power consumption or stops charging. The method achieves the purpose of charging balance of each battery cell string. Among them, the power consumption means mainly uses the balance circuit of the energy consumption form to consume the power of the battery core string whose voltage reaches the preset saturation voltage, and the suspension charging means uses the circuit design. The battery string that causes the voltage to reach the preset saturation voltage stops charging.
I483507及I502849專利係兩種不同迴路設計的充電裝置及 方法，I483507及I502849專利分別公開採用中止充電手段達到充電平衡的充電裝置及充電方法。 The I483507 and I502849 patents are two different circuit design charging devices and Methods, I483507 and I502849 patents respectively disclose a charging device and a charging method that use a suspension charging means to achieve charge balancing.
本發明主要目的在於提供一種主動式平衡充電裝置及使用所述充電裝置對二次電池充電的方法，藉由首創的迴路，使二次電池的多個電池模組充電平衡。 SUMMARY OF THE INVENTION A primary object of the present invention is to provide an active balance charging device and a method of charging a secondary battery using the charging device, wherein a plurality of battery modules of the secondary battery are charged and balanced by a first circuit.
本發明係一種主動式平衡充電裝置，用於對二次電池充電，二次電池包含一蓄電單元，蓄電單元包含串聯的數個電池模組；所述的主動式平衡充電裝置包含一控制單元、一充電單元、一電壓偵測單元及一溫度偵測單元，其中，控制單元係電子電路構成，控制單元與充電單元耦接，用於控制充電單元，電壓偵測單元與控制單元及各電池模組耦接，電壓偵測單元係電壓偵測電路，用於偵測各電池模組的電壓，溫度偵測單元與控制單元耦接，溫度偵測單元係溫度偵測電路，用於偵測蓄電單元的溫度；充電單元包含一第一充電器、一第一開關、數個第二充電器及數個第二開關，其中，第一充電器與蓄電單元及一外部的電力源耦接，用於對各電池模組充電，第一開關與第一充電器及蓄電單元耦接，用於變化第一充電器與蓄電單元的電路通/斷，控制單元控制第一開關，第二充電器及第二開關的數目與電池模組的數目配合，各第二充電器分別與一電池模組及電力源耦接，各電池模組分別與一第二充電器耦接，各第二開關分別與一第二充電器及一電池模組耦接，用於變化各第二充電器與電池模組的電路通/斷，控制單元控制各第二開關，第一充電器輸出的充電電壓為 V1，第二充電器輸出的充電電壓為V2，第二充電器的數量為n，V1>n×V2。 The present invention is an active balance charging device for charging a secondary battery, the secondary battery includes a power storage unit, and the power storage unit includes a plurality of battery modules connected in series; the active balance charging device includes a control unit, a charging unit, a voltage detecting unit and a temperature detecting unit, wherein the control unit is formed by an electronic circuit, and the control unit is coupled to the charging unit for controlling the charging unit, the voltage detecting unit and the control unit, and the battery modules The group is coupled, the voltage detecting unit is a voltage detecting circuit for detecting the voltage of each battery module, the temperature detecting unit is coupled with the control unit, and the temperature detecting unit is a temperature detecting circuit for detecting the power storage. The temperature of the unit; the charging unit includes a first charger, a first switch, a plurality of second chargers, and a plurality of second switches, wherein the first charger is coupled to the power storage unit and an external power source, The first switch is coupled to the first charger and the power storage unit for changing the circuit on/off of the first charger and the power storage unit, and the control unit controls the first battery. The number of the second charger and the second switch is matched with the number of the battery modules, and the second chargers are respectively coupled to a battery module and a power source, and the battery modules are respectively coupled to a second charger. The second switch is coupled to a second charger and a battery module for changing the circuit on/off of each of the second charger and the battery module, and the control unit controls each of the second switches, the first charging The output voltage of the device is V1, the charging voltage of the second charger is V2, and the number of the second charger is n, V1>n×V2.
如前所述之主動式平衡充電裝置，其中，控制單元與一無線通訊單元連接，無線通訊單元用於向雲端傳送二次電池的蓄電單元的電壓及溫度數值。 The active balance charging device as described above, wherein the control unit is connected to a wireless communication unit for transmitting the voltage and temperature values of the power storage unit of the secondary battery to the cloud.
本發明係一種使用前述主動式平衡充電裝置對二次電池充電的方法，包含以下步驟：蒐集電池資訊：電壓偵測單元偵測各電池模組的電壓，溫度偵測單元偵測蓄電單元的溫度，控制單元基於電壓偵測單元及溫度偵測單元的偵測所得電壓及溫度資訊，控制充電單元；前期平衡充電：若至少一電池模組的電壓低於平均電壓值，第一開關保持斷開狀態，第一充電器與蓄電單元形成斷路，電壓低於平均電壓值的電池模組耦接的第二開關作動形成導通狀態，其他第二開關保持斷開狀態，充電單元只對電壓低於平均電壓值的電池模組充電；當各電池模組11的電壓均等於或高於平均電壓值，停止前期平衡充電；所述的平均電壓值係由電池模組的內阻抗值決定；全體充電：若各電池模組的電壓均等於或高於平均電壓值，各第二開關均保持斷開狀態，第一開關作動形成導通狀態，第一充電器與蓄電單元形成通路，第一充電器對各電池模組充電；當至少一電池模組的電壓等於飽和電壓值，停止全體充電；後期平衡充電：若至少一電池模組的電壓等於飽和電壓值，第一開關斷開，第一充電器與蓄電單元形成斷路，電壓等於飽和電壓值的電池模組耦接的第二開關斷開，電壓低於飽和電壓值的電池模組耦接的第 二開關作動形成導通狀態，充電單元只對電壓低於飽和電壓值的電池模組充電；當各電池模組電壓均等於飽和電壓值，各第二開關均斷開，完成二次電池的充電；過熱保護：當蓄電單元的溫度等於或大於預設的安全溫度，第一開關及第二開關均保持斷開狀態，中止對蓄電單元充電；各電池模組在同一時間只被第一充電器或一第二充電器充電。 The invention relates to a method for charging a secondary battery by using the foregoing active balance charging device, comprising the steps of: collecting battery information: a voltage detecting unit detects a voltage of each battery module, and a temperature detecting unit detects a temperature of the power storage unit The control unit controls the charging unit based on the detected voltage and temperature information of the voltage detecting unit and the temperature detecting unit; pre-balanced charging: if at least one battery module voltage is lower than the average voltage value, the first switch remains disconnected In the state, the first charger and the power storage unit form an open circuit, and the second switch coupled to the battery module whose voltage is lower than the average voltage value is activated to form a conduction state, and the other second switches are kept in an off state, and the charging unit only has a voltage lower than the average. The battery module of the voltage value is charged; when the voltage of each battery module 11 is equal to or higher than the average voltage value, the pre-balanced charging is stopped; the average voltage value is determined by the internal impedance value of the battery module; If the voltage of each battery module is equal to or higher than the average voltage value, each of the second switches remains off, and the first switch is activated. In the on state, the first charger forms a path with the power storage unit, and the first charger charges each battery module; when the voltage of at least one battery module is equal to the saturation voltage value, the entire charging is stopped; and the later balanced charging: if at least one battery module The voltage of the group is equal to the saturation voltage value, the first switch is disconnected, the first charger forms an open circuit with the power storage unit, the second switch coupled to the battery module whose voltage is equal to the saturation voltage value is disconnected, and the battery whose voltage is lower than the saturation voltage value Module coupling The second switch is actuated to form a conduction state, and the charging unit only charges the battery module whose voltage is lower than the saturation voltage value; when the voltage of each battery module is equal to the saturation voltage value, each of the second switches is disconnected to complete the charging of the secondary battery; Overheat protection: When the temperature of the power storage unit is equal to or greater than the preset safe temperature, the first switch and the second switch remain in the off state, and the charging of the power storage unit is suspended; each battery module is only used by the first charger or at the same time. A second charger is charged.
1‧‧‧蓄電單元 1‧‧‧Power storage unit
11‧‧‧電池模組 11‧‧‧Battery module
2‧‧‧控制單元 2‧‧‧Control unit
3‧‧‧充電單元 3‧‧‧Charging unit
31‧‧‧第一充電器 31‧‧‧First Charger
32‧‧‧第一開關 32‧‧‧First switch
33‧‧‧第二充電器 33‧‧‧Second charger
34‧‧‧第二開關 34‧‧‧second switch
4‧‧‧電壓偵測單元 4‧‧‧Voltage detection unit
5‧‧‧溫度偵測單元 5‧‧‧Temperature detection unit
9‧‧‧電力源 9‧‧‧Power source
第一圖係本發明實施例一的主動式平衡充電裝置的電路方塊示意圖。 The first figure is a circuit block diagram of an active balanced charging device according to Embodiment 1 of the present invention.
第二圖係本發明實施例一的主動式平衡充電裝置對二次電池充電的方法的流程圖。 The second figure is a flowchart of a method for charging a secondary battery by the active balance charging device of the first embodiment of the present invention.
第三圖係本發明實施例一的主動式平衡充電裝置執行前期充電步驟的電路方塊示意圖。 The third figure is a circuit block diagram of an active balance charging device performing a pre-charging step in the first embodiment of the present invention.
第四圖係本發明實施例一的主動式平衡充電裝置執行全體充電步驟的電路方塊示意圖。 The fourth figure is a block diagram of a circuit for performing an overall charging step of the active balanced charging device according to the first embodiment of the present invention.
第一圖係本發明實施例一的一種主動式平衡充電裝置的電路方塊示意圖，顯示主動式平衡充電裝置與二次電池的蓄電單元1耦接的組態，蓄電單元1包含串聯的數個電池模組11，電池模組11係多個電池芯串聯組成，電池模組11也可以是單一個電池芯。 1 is a circuit block diagram of an active balance charging device according to Embodiment 1 of the present invention, showing a configuration in which an active balance charging device is coupled to a power storage unit 1 of a secondary battery, and the power storage unit 1 includes a plurality of batteries connected in series. The module 11 and the battery module 11 are composed of a plurality of battery cells connected in series, and the battery module 11 may also be a single battery core.
所述的主動式平衡充電裝置包含一控制單元2、一充電單元 3、一電壓偵測單元4及一溫度偵測單元5，其中，控制單元2係電子電路構成，控制單元2與充電單元3耦接，用於控制充電單元3，電壓偵測單元4與控制單元2及各電池模組11耦接，電壓偵測單元4係電壓偵測電路，用於偵測各電池模組11的電壓，提供控制單元2作為控制充電單元3的依據，溫度偵測單元5與控制單元2耦接，溫度偵測單元5係溫度偵測電路，用於偵測蓄電單元1的溫度，提供控制單元2作為控制充電單元3的依據。 The active balance charging device comprises a control unit 2 and a charging unit 3. A voltage detecting unit 4 and a temperature detecting unit 5, wherein the control unit 2 is composed of an electronic circuit, and the control unit 2 is coupled to the charging unit 3 for controlling the charging unit 3, the voltage detecting unit 4 and the control The unit 2 and each of the battery modules 11 are coupled to each other, and the voltage detecting unit 4 is a voltage detecting circuit for detecting the voltage of each battery module 11, and providing the control unit 2 as a basis for controlling the charging unit 3, and the temperature detecting unit 5 is coupled to the control unit 2, the temperature detecting unit 5 is a temperature detecting circuit for detecting the temperature of the power storage unit 1, and providing the control unit 2 as a basis for controlling the charging unit 3.
充電單元3包含一第一充電器31、一第一開關32、數個第二充電器33及數個第二開關34，其中，第一充電器31與蓄電單元1及一外部的電力源9耦接，用於對各電池模組11充電，電力源9可以是提供電力的發電機或市電，第一開關32與第一充電器31及蓄電單元1耦接，用於變化第一充電器31與蓄電單元1的電路通/斷，且控制單元2控制第一開關32，第二充電器33及第二開關34的數目與電池模組11的數目配合，各第二充電器33分別與一電池模組11及電力源9耦接，各電池模組11分別與一第二充電器33耦接，據使各第二充電器33分別對各電池模組11充電，各第一開關34分別與一第二充電器33及一電池模組11耦接，用於變化各第二充電器33與電池模組11的電路通/斷，且控制單元2控制各第二開關34，第一充電器31輸出的充電電壓為V1，第二充電器33輸出的充電電壓為V2，第二充電器33的數量為n，V1>n×V2。 The charging unit 3 includes a first charger 31, a first switch 32, a plurality of second chargers 33 and a plurality of second switches 34, wherein the first charger 31 and the power storage unit 1 and an external power source 9 The first battery is connected to the first charger 31 and the power storage unit 1 for changing the first charger. 31 is turned on/off with the circuit of the power storage unit 1, and the control unit 2 controls the first switch 32. The number of the second charger 33 and the second switch 34 is matched with the number of the battery modules 11, and the second chargers 33 are respectively associated with A battery module 11 and a power source 9 are coupled to each other. Each of the battery modules 11 is coupled to a second charger 33. The second chargers 33 respectively charge the battery modules 11 and the first switches 34. Each of the second charger 33 and the battery module 11 is coupled to change the circuit of each of the second chargers 33 and the battery module 11 on/off, and the control unit 2 controls the second switches 34, first The charging voltage output by the charger 31 is V1, and the charging voltage output by the second charger 33 is V2, and the second charger 33 An amount of n, V1> n × V2.
使用前述實施例一的主動式平衡充電裝置對二次電池充電時，首先將主動式平衡充電裝置與二次電池及外部的電力源9耦接，即可利用主動式平衡充電裝置對二次電池充電。 When the secondary battery is charged by using the active balance charging device of the first embodiment, the active balance charging device is first coupled to the secondary battery and the external power source 9, and the active battery can be used for the secondary battery. Charging.
如第二圖所示，使用前述實施例一的主動式平衡充電裝置對 二次電池充電的方法，包含以下步驟： As shown in the second figure, the active balance charging device pair of the foregoing first embodiment is used. The method of charging a secondary battery includes the following steps:
蒐集電池資訊：電壓偵測單元4偵測各電池模組11的電壓，溫度偵測單元5偵測蓄電單元1的溫度，控制單元2基於電壓偵測單元4及溫度偵測單元5的偵測所得電壓及溫度資訊，控制充電單元3。 Collecting battery information: the voltage detecting unit 4 detects the voltage of each battery module 11, the temperature detecting unit 5 detects the temperature of the power storage unit 1, and the control unit 2 detects based on the voltage detecting unit 4 and the temperature detecting unit 5 The obtained voltage and temperature information controls the charging unit 3.
前期平衡充電：如第三圖所示，若至少一電池模組11的電壓低於平均電壓值，第一開關32保持斷開狀態，第一充電器31與蓄電單元1形成斷路，電壓低於平均電壓值的電池模組11耦接的第二開關34作動形成導通狀態，其他第二開關34保持斷開狀態，充電單元3只對電壓低於平均電壓值的電池模組11充電；當各電池模組11的電壓均等於或高於平均電壓值，停止前期平衡充電。所述的平均電壓值係由電池模組11的內阻抗值決定。 Pre-balanced charging: As shown in the third figure, if the voltage of at least one battery module 11 is lower than the average voltage value, the first switch 32 remains in the off state, and the first charger 31 and the power storage unit 1 form an open circuit, and the voltage is lower than The second switch 34 coupled to the battery module 11 of the average voltage value is activated to form an on state, and the other second switches 34 are kept in an off state, and the charging unit 3 charges only the battery module 11 whose voltage is lower than the average voltage value; The voltage of the battery module 11 is equal to or higher than the average voltage value, and the pre-balanced charging is stopped. The average voltage value is determined by the internal impedance value of the battery module 11.
全體充電：如第四圖所示，若各電池模組11的電壓均等於或高於平均電壓值，各第二開關34均保持斷開狀態，第一開關32作動形成導通狀態，第一充電器31與蓄電單元1形成通路，第一充電器31對各電池模組11充電；當至少一電池模組11的電壓等於飽和電壓值，停止全體充電。 All the charging: As shown in the fourth figure, if the voltage of each battery module 11 is equal to or higher than the average voltage value, each of the second switches 34 remains in an off state, and the first switch 32 is actuated to form a conducting state, the first charging The device 31 forms a path with the power storage unit 1, and the first charger 31 charges each battery module 11; when the voltage of at least one battery module 11 is equal to the saturation voltage value, the entire charging is stopped.
後期平衡充電：若至少一電池模組11的電壓等於飽和電壓值，第一開關32斷開，第一充電器31與蓄電單元1形成斷路，電壓等於飽和電壓值的電池模組11耦接的第二開關34斷開，電壓低於飽和電壓值的電池模組11耦接的第二開關34作動形成導通狀態，充電單元3只對電壓低於飽和電壓值的電池模組11充電；當各電池模組11電壓均等於飽和電壓值，各第二開關34均斷開，完成二次電池的充電。 Balanced charging: If the voltage of at least one battery module 11 is equal to the saturation voltage value, the first switch 32 is disconnected, the first charger 31 and the power storage unit 1 form an open circuit, and the battery module 11 having a voltage equal to the saturation voltage value is coupled. The second switch 34 is turned off, and the second switch 34 coupled to the battery module 11 whose voltage is lower than the saturation voltage value is activated to form an on state, and the charging unit 3 only charges the battery module 11 whose voltage is lower than the saturation voltage value; The voltage of the battery module 11 is equal to the saturation voltage value, and each of the second switches 34 is turned off to complete the charging of the secondary battery.
過熱保護：當蓄電單元1的溫度等於或大於預設的安全溫度 時，第一開關32及第二開關34均保持斷開狀態，中止對蓄電單元1充電，避免二次電池充電時由於溫度過高而損壞。 Overheat protection: When the temperature of power storage unit 1 is equal to or greater than the preset safe temperature When the first switch 32 and the second switch 34 are both kept in the off state, the charging of the power storage unit 1 is suspended, and the secondary battery is prevented from being damaged due to excessive temperature.
各電池模組11在同一時間只被第一充電器31或一第二充電器33充電。 Each of the battery modules 11 is charged only by the first charger 31 or a second charger 33 at the same time.
二次電池充電的初期，若至少一電池模組11的電壓低於平均電壓值時，執行前期平衡充電，藉此保護電池模組11，避免構成蓄電單元1的某一電池模組11的蓄電能力降低。 In the initial stage of charging the secondary battery, if at least one of the battery modules 11 is lower than the average voltage value, the front-end balanced charging is performed, thereby protecting the battery module 11 and avoiding the storage of a certain battery module 11 constituting the power storage unit 1. Reduced ability.
各電池模組11的電壓均等於或大於平均電壓值，則執行全體充電，第一充電器31對蓄電單元1的全體電池模組11充電，各電池模組11可快速的充電，然而，若主動式平衡充電裝置與二次電池耦接，在蒐集電池資訊時，各電池模組11的電壓均等於或大於平均電壓值，則可不執行前期平衡充電，直接執行全體充電。 When the voltage of each battery module 11 is equal to or greater than the average voltage value, the entire charging is performed, and the first charger 31 charges the entire battery module 11 of the power storage unit 1, and each battery module 11 can be quickly charged. The active balance charging device is coupled to the secondary battery. When the battery information is collected, the voltage of each battery module 11 is equal to or greater than the average voltage value, and the entire balanced charging can be performed without performing the previous balanced charging.
至少一電池模組11的電壓等於飽和電壓值，則執行後期平衡充電，利用輸出電壓V2較低的各第二充電器33分別對尚未充飽電的各電池模組11繼續充電。據此，充電單元3可有效地利用一個第一充電器31及數個第二充電器33對各電池模組11執行充電，各電池模組11的充電平衡，執行充電所耗用時間與充電單元3的體積之間得以取得平衡。 When the voltage of at least one of the battery modules 11 is equal to the saturation voltage value, the post-balanced charging is performed, and the second chargers 33 having the lower output voltage V2 respectively continue to charge the battery modules 11 that have not been fully charged. Accordingly, the charging unit 3 can effectively charge each battery module 11 by using a first charger 31 and a plurality of second chargers 33, and the charging of each battery module 11 is balanced, and the charging time and charging are performed. The volume of unit 3 is balanced.
本發明實施例二的一種主動式平衡充電裝置係於前述實施例一之控制單元進一步與一無線通訊單元連接，無線通訊單元用於向電池供應商的雲端管理系統傳送二次電池的蓄電單元1的電壓數值及溫度數值，雲端管理系統得以監測二次電池的電壓及溫度，記錄二次電池的充電次數、每次充電的電壓數值及充電所耗用時間，據此判斷二次電池是否發 生異常，當二次電池的電壓及溫度異常時，雲端管理系統可連繫二次電池使用者進行二次電池的維修或更換，二次電池完成充電時，雲端管理系統亦可主動通知使用者。 An active balance charging device according to the second embodiment of the present invention is further connected to a wireless communication unit by the control unit of the first embodiment, and the wireless communication unit is configured to transmit the secondary battery storage unit 1 to the battery provider's cloud management system. The voltage value and temperature value, the cloud management system can monitor the voltage and temperature of the secondary battery, record the number of times the secondary battery is charged, the voltage value of each charge and the time taken for charging, and determine whether the secondary battery is sent Abnormality, when the voltage and temperature of the secondary battery are abnormal, the cloud management system can connect the secondary battery user to repair or replace the secondary battery. When the secondary battery is fully charged, the cloud management system can also notify the user actively. .
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