CN104836307B - Power lithium battery pack balanced system adopting rotary brush structure - Google Patents
Power lithium battery pack balanced system adopting rotary brush structure Download PDFInfo
- Publication number
- CN104836307B CN104836307B CN201510277980.4A CN201510277980A CN104836307B CN 104836307 B CN104836307 B CN 104836307B CN 201510277980 A CN201510277980 A CN 201510277980A CN 104836307 B CN104836307 B CN 104836307B
- Authority
- CN
- China
- Prior art keywords
- rotating brush
- equalization
- brush structure
- single battery
- brushes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 16
- 238000004146 energy storage Methods 0.000 claims description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明公开了一种采用旋转电刷结构的动力锂电池组均衡系统，该系统包括：旋转电刷结构、均衡控制模块与均衡执行电路；其中：所述旋转电刷结构，由一对可由电机带动旋转的电刷及固定于该电刷周边呈圆周分布的若干接触片组成，用于切换所述均衡执行电路使其连接到不同的单体电池上；所述均衡控制模块，用于检测当前单体电池的状态，并根据当前单体电池的状态与整组电池状态的比较结果输出控制逻辑；所述均衡执行电路，用于根据所述控制逻辑对当前所连接的单体电池进行充电或放电，实现电池组的均衡。通过采用本发明公开的系统实现了动力锂电池组的均衡，具有低控制难度、低电路复杂度及快速等优点。
The invention discloses a power lithium battery group equalization system adopting a rotating brush structure. The system includes: a rotating brush structure, an equalization control module and an equalization execution circuit; wherein: the rotating brush structure is composed of a pair of motors Composed of a rotating brush and a number of contact pieces fixed on the periphery of the brush and distributed in a circle, it is used to switch the balance execution circuit so that it is connected to different single batteries; the balance control module is used to detect the current The state of the single battery, and output the control logic according to the comparison result between the current state of the single battery and the state of the whole group of batteries; the balance execution circuit is used to charge or charge the currently connected single battery according to the control logic Discharge to balance the battery pack. The balance of the power lithium battery pack is realized by adopting the system disclosed by the invention, and has the advantages of low control difficulty, low circuit complexity, fast speed and the like.
Description
技术领域technical field
本发明涉及锂电池管理技术领域，尤其涉及一种采用旋转电刷结构的动力锂电池组均衡系统。The invention relates to the technical field of lithium battery management, in particular to a power lithium battery group equalization system adopting a rotating brush structure.
背景技术Background technique
由于电池制作工艺和单体电池工作环境差异等因素的影响，锂电池组中单体电池存在不一致性问题。单体电池间的不一致性会直接影响电池组的使用效率，同时会减少电池组的使用寿命。因此，需要设计专门的均衡电路，对电池组进行均衡。Due to the influence of factors such as the battery manufacturing process and the difference in the working environment of the single battery, there are inconsistencies in the single battery in the lithium battery pack. The inconsistency between single cells will directly affect the efficiency of the battery pack and reduce the service life of the battery pack. Therefore, it is necessary to design a special balancing circuit to balance the battery pack.
目前，均衡电路多以电子开关元件的形式进行电路切换，完成被动或主动的均衡过程；其中所使用的电路元件众多，结构复杂，所采用的控制算法也比较庞杂，均衡电流则受电子元件的制约往往会比较小，从而直接影响均衡的快速性。At present, most equalization circuits use electronic switching elements to perform circuit switching to complete the passive or active equalization process; there are many circuit elements used, the structure is complex, and the control algorithm adopted is relatively complex, and the equalization current is controlled by the electronic components. Constraints tend to be relatively small, which directly affects the rapidity of equilibrium.
发明内容Contents of the invention
本发明的目的是提供一种采用旋转电刷结构的动力锂电池组均衡系统，实现了动力锂电池组的均衡，具有低控制难度、低电路复杂度及快速等优点。The purpose of the present invention is to provide a power lithium battery pack equalization system using a rotating brush structure, which realizes the balance of the power lithium battery pack, and has the advantages of low control difficulty, low circuit complexity and fast speed.
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
一种采用旋转电刷结构的动力锂电池组均衡系统，该系统包括：旋转电刷结构、均衡控制模块与均衡执行电路；其中：A power lithium battery pack balancing system adopting a rotating brush structure, the system includes: a rotating brush structure, a balancing control module and a balancing execution circuit; wherein:
所述旋转电刷结构，由一对可由电机带动旋转的电刷及固定于该电刷周边呈圆周分布的若干接触片组成，用于切换所述均衡执行电路使其连接到不同的单体电池上；The rotating brush structure is composed of a pair of brushes that can be rotated by a motor and a number of contact pieces fixed on the periphery of the brushes and distributed in a circle, which are used to switch the equalization execution circuit so that it is connected to different single cells superior;
所述均衡控制模块，用于检测当前单体电池的状态，并根据当前单体电池的状态与整组电池状态的比较结果输出控制逻辑；The balance control module is used to detect the state of the current single battery, and output the control logic according to the comparison result between the current state of the single battery and the state of the whole group of batteries;
所述均衡执行电路，用于根据所述控制逻辑对当前所连接的单体电池进行充电或放电，实现电池组的均衡。The balance execution circuit is used to charge or discharge the currently connected single cells according to the control logic, so as to realize the balance of the battery pack.
所述旋转电刷结构中的若干接触片的位置固定且分别单独与串联电池组的每一单体电池的一端相连，所述旋转电刷结构中的一对电刷通过与相邻的两个接触片相接触来与某一单体电池的正负两极相连，且当所述旋转电刷结构通过一个直流电机带动电刷旋转时，每当电刷与相邻的两个接触片相接触，均可使一对电刷分别与某一单体电池的正负两极相连，并保持极性不变。The positions of several contact pieces in the rotating brush structure are fixed and connected to one end of each unit battery of the series battery pack separately, and a pair of brushes in the rotating brush structure are connected to two adjacent The contact pieces are connected to the positive and negative poles of a single battery, and when the rotating brush structure drives the brush to rotate through a DC motor, whenever the brush is in contact with two adjacent contact pieces, A pair of brushes can be connected to the positive and negative poles of a single battery respectively, and the polarity is kept unchanged.
所述均衡控制模块与所述旋转电刷结构中的一对电刷相连，通过带动电刷旋转使得所述均衡控制模块可以单独与每一单体电池的正负两极相连；The balance control module is connected to a pair of brushes in the rotating brush structure, and the balance control module can be independently connected to the positive and negative poles of each single battery by driving the brushes to rotate;
所述均衡控制模块为外接电池管理系统，或者自身嵌入式控制单元及电压采集单元，或者自搭建滤波比较电路；用于检测当前单体电池的电压值和整组电池的平均电压值，并比较二者的大小关系；若当前单体电池的电压值高于整组电池的电压平均值则输出高电平，若当前单体电池的电压值低于整组电池的电压平均值则输出低电平，其输出的高电平与低电平作为对均衡执行电路的控制逻辑。The balance control module is an external battery management system, or its own embedded control unit and voltage acquisition unit, or a self-built filter comparison circuit; it is used to detect the current voltage value of the single battery and the average voltage value of the entire battery pack, and compare The size relationship between the two; if the current voltage value of the single battery is higher than the average voltage of the entire battery pack, the output is high, and if the current voltage value of the single battery is lower than the average voltage of the entire battery pack, the output is low. Level, the high level and low level of its output are used as the control logic for the equalization execution circuit.
所述均衡执行电路与所述旋转电刷结构中的一对电刷相连，通过带动电刷旋转使得所述均衡执行电路可以单独与每一单体电池的正负两极相连；The balance execution circuit is connected to a pair of brushes in the rotating brush structure, and the balance execution circuit can be individually connected to the positive and negative poles of each single battery by driving the brushes to rotate;
所述均衡执行电路包括：储能元件以及连接电刷与储能元件的充电和放电两条回路：其中：The equalization execution circuit includes: an energy storage element and two charging and discharging circuits connecting the brushes and the energy storage element: wherein:
充电回路中含有稳压模块，该稳压模块受控制逻辑控制，当控制逻辑为高电平时执行稳压充电操作，由当前所连接的单体电池向储能元件充电；The charging circuit contains a voltage stabilizing module, which is controlled by the control logic. When the control logic is at a high level, the voltage stabilizing charging operation is performed, and the energy storage element is charged from the currently connected single battery;
放电回路含有一个受控开关，受到控制逻辑的控制，当控制逻辑为低电平时闭合放电回路，使储能元件向当前所连接的单体电池进行放电。The discharge circuit includes a controlled switch, which is controlled by the control logic. When the control logic is at a low level, the discharge circuit is closed, so that the energy storage element discharges to the currently connected single battery.
由上述本发明提供的技术方案可以看出，采用旋转电刷结构代替电子开关来实现电路切换，结构简单，操作方便，可以解决现有均衡电路方案中由于大量采用电子开关而造成的元件数量多，电路复杂度高，控制难度高等问题；同时，可以解除电子开关对均衡电流的限制，在电刷结构容许的条件下增大均衡电流，提高均衡的速度；采用超级电容等储能元件和稳压充电模块，提高能量转移的效率，获取稳定的均衡效果。It can be seen from the above-mentioned technical solution provided by the present invention that the circuit switching is realized by using a rotating brush structure instead of an electronic switch, which has a simple structure and is easy to operate, and can solve the large number of components caused by a large number of electronic switches in the existing equalization circuit solution. , high circuit complexity, and high control difficulty; at the same time, it can remove the limitation of the electronic switch on the equalization current, increase the equalization current under the condition allowed by the brush structure, and improve the equalization speed; use energy storage components such as supercapacitors and stabilizers The voltage charging module improves the efficiency of energy transfer and obtains a stable equalization effect.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative work.
图1为本发明实施例提供的一种采用旋转电刷结构的动力锂电池组均衡系统的示意图；Fig. 1 is a schematic diagram of a power lithium battery pack equalization system using a rotating brush structure provided by an embodiment of the present invention;
图2为本发明实施例提供的一种采用旋转电刷结构的动力锂电池组均衡系统中均衡控制模块及均衡执行电路部分的示意图。Fig. 2 is a schematic diagram of an equalization control module and an equalization execution circuit in a power lithium battery pack equalization system using a rotating brush structure provided by an embodiment of the present invention.
具体实施方式detailed description
下面结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例Example
本发明实施例提供一种采用旋转电刷结构的动力锂电池组均衡系统，如图1所示，该系统主要包括：旋转电刷结构、均衡控制模块与均衡执行电路。An embodiment of the present invention provides a power lithium battery pack equalization system using a rotating brush structure. As shown in FIG. 1 , the system mainly includes: a rotating brush structure, an equalization control module, and an equalization execution circuit.
1、所述旋转电刷结构，用于切换所述均衡执行电路使其连接到不同的单体电池上。1. The rotating brush structure is used to switch the balancing execution circuit to connect to different single cells.
该旋转电刷结构由一对可由电机带动旋转的电刷(图1中内圆部分的一对弧形电刷)及固定于该电刷周边呈圆周分布的若干接触片(图1中外圆的若干弧形接触片，具体数量可根据需求来确定)组成；具体来说：The rotating brush structure consists of a pair of brushes that can be rotated by the motor (a pair of arc-shaped brushes in the inner circle part in Figure 1) and a number of contact pieces that are fixed on the periphery of the brushes and are circumferentially distributed (the outer circle in Figure 1). A number of arc-shaped contact pieces, the specific number can be determined according to the demand); specifically:
所述旋转电刷结构中的若干接触片的位置固定且分别单独与串联电池组的每一单体电池的一端相连，所述旋转电刷结构中的一对电刷通过与相邻的两个接触片相接触来与某一单体电池的正负两极相连，且当所述旋转电刷结构通过一个直流电机带动电刷旋转时，每当电刷与相邻的两个接触片相接触，均可使一对电刷分别与某一单体电池的正负两极相连，并保持极性不变；具体来说：电刷由电机带动旋转时，一对电刷依次与周围固定的各个接触片相接触，接触只是短时间内的暂态；由于旋转，电刷会马上与旋转方向上的下一个接触片相接触，形成新的暂态；在每一个上述的暂态中，这一对电刷均会分别与一个单体电池正负两极相接的效果。The positions of several contact pieces in the rotating brush structure are fixed and connected to one end of each unit battery of the series battery pack separately, and a pair of brushes in the rotating brush structure are connected to two adjacent The contact pieces are connected to the positive and negative poles of a single battery, and when the rotating brush structure drives the brush to rotate through a DC motor, whenever the brush is in contact with two adjacent contact pieces, A pair of brushes can be connected to the positive and negative poles of a single battery respectively, and the polarity remains unchanged; specifically: when the brushes are driven by the motor to rotate, the pair of brushes are in turn in contact with the surrounding fixed poles. The contact is only a transient state in a short time; due to the rotation, the brush will immediately contact the next contact sheet in the direction of rotation to form a new transient state; in each of the above transient states, the pair The effect that the brushes are connected to the positive and negative poles of a single battery respectively.
2、所述均衡控制模块，用于检测当前单体电池的状态，并根据当前单体电池的状态与整组电池状态的比较结果输出控制逻辑。2. The balance control module is used to detect the state of the current single battery, and output the control logic according to the comparison result between the current state of the single battery and the state of the whole group of batteries.
具体来说，所述均衡控制模块与所述旋转电刷结构中的一对电刷相连，通过带动电刷旋转使得所述均衡控制模块可以单独与每一单体电池的正负两极相连；用于获取当前单体电池的电压值和整组电池的平均电压值，并比较二者的大小关系；若当前单体电池的电压值高于整组电池的电压平均值则输出高电平，若当前单体电池的电压值低于整组电池的电压平均值则输出低电平，其输出的高电平与低电平作为对均衡执行电路的控制逻辑。Specifically, the balance control module is connected to a pair of brushes in the rotating brush structure, and the balance control module can be individually connected to the positive and negative poles of each single battery by driving the brushes to rotate; It is used to obtain the voltage value of the current single battery and the average voltage value of the whole battery group, and compare the relationship between the two; if the current voltage value of the single battery is higher than the average voltage value of the whole battery group, it will output a high level, if When the voltage value of the current single battery is lower than the average voltage of the whole group of batteries, it will output a low level, and the output high level and low level are used as the control logic for the equalization execution circuit.
3、所述均衡执行电路，用于根据所述控制逻辑对当前所连接的单体电池进行充电或放电，实现电池组的均衡。3. The balance execution circuit is used to charge or discharge the currently connected single battery according to the control logic, so as to realize the balance of the battery pack.
具体来说，所述均衡执行电路与所述旋转电刷结构中的一对电刷相连，通过带动电刷旋转使得所述均衡执行电路可以单独与每一单体电池的正负两极相连。Specifically, the balance execution circuit is connected to a pair of brushes in the rotating brush structure, and the balance execution circuit can be individually connected to the positive and negative poles of each single battery by driving the brushes to rotate.
所述均衡执行电路包括：储能元件以及连接电刷与储能元件的充电和放电两条回路：其中：The equalization execution circuit includes: an energy storage element and two charging and discharging circuits connecting the brushes and the energy storage element: wherein:
充电回路中含有稳压模块，该稳压模块受控制逻辑控制，当控制逻辑为高电平时执行稳压充电操作，由当前所连接的单体电池向储能元件充电；The charging circuit contains a voltage stabilizing module, which is controlled by the control logic. When the control logic is at a high level, the voltage stabilizing charging operation is performed, and the energy storage element is charged from the currently connected single battery;
放电回路含有一个受控开关，受到控制逻辑的控制，当控制逻辑为低电平时闭合放电回路，使储能元件向当前所连接的单体电池进行放电。The discharge circuit includes a controlled switch, which is controlled by the control logic. When the control logic is at a low level, the discharge circuit is closed, so that the energy storage element discharges to the currently connected single battery.
在上述图1中为了便于表示，将均衡控制模块与均衡执行电路集成为一个功能模块。均衡控制模块与均衡执行电路的详细结构请参见图2。In the above-mentioned FIG. 1 , for ease of representation, the equalization control module and the equalization execution circuit are integrated into one functional module. Please refer to Figure 2 for the detailed structure of the equalization control module and the equalization execution circuit.
如图2所示，旋转电刷结构中的一对电刷分别与均衡控制模块、均衡执行电路中的充电回路和放电回路相连。As shown in Figure 2, a pair of brushes in the rotating brush structure are respectively connected to the equalization control module, the charging circuit and the discharging circuit in the equalization execution circuit.
均衡控制模块通过电刷采集当前单体电池的电压信息和整组电池的平均电压信息，并输出两者的比较结果作为控制逻辑；输出的控制逻辑分为两路，一路与均衡执行电路中充电回路的稳压模块(升压电路)相连，作为其使能信号；另一路则经过一个非门与均衡执行电路中放电回路的受控开关(光耦开关)相连，作为其开关信号。The balance control module collects the voltage information of the current single battery and the average voltage information of the whole group of batteries through the brush, and outputs the comparison result of the two as the control logic; the output control logic is divided into two circuits, one of which is charged with the balance execution circuit The voltage stabilizing module (boost circuit) of the circuit is connected as its enabling signal; the other circuit is connected to the controlled switch (optocoupler switch) of the discharge circuit in the equalization execution circuit through a NOT gate as its switching signal.
所述均衡控制模块为外接电池管理系统，或者自身嵌入式控制单元及电压采集单元，或者自搭建滤波比较电路。具体来说：The balance control module is an external battery management system, or its own embedded control unit and voltage acquisition unit, or a self-built filter comparison circuit. Specifically:
1)自搭建滤波比较电路实现上述功能的过程如下：搭建一个RC网络，实现在电刷旋转过程中对不同单体电池的电压值进行低通滤波，从而获取整组电压的平均值，再经由一个运放搭建的比较电路对当前单体电压与整组平均电压进行比较，获取比较结果。1) The process of self-built filter comparison circuit to achieve the above functions is as follows: Build an RC network to realize low-pass filtering on the voltage values of different single cells during the brush rotation process, so as to obtain the average value of the entire group voltage, and then pass A comparison circuit built by an operational amplifier compares the current monomer voltage with the average voltage of the entire group to obtain the comparison result.
2)自身嵌入式控制单元及电压采集单元实现上述功能的过程如下：通过随着电刷的转动而实现对电池组各个单体电池电压的采集，从而可以进行整组电压平均值的计算，进而对当前单体电压与整组平均电压做出比较。2) The process of realizing the above functions by its own embedded control unit and voltage acquisition unit is as follows: through the rotation of the brushes, the voltage of each single battery in the battery pack is collected, so that the average value of the entire group of voltages can be calculated, and then Compare the current cell voltage with the average voltage of the whole group.
3)外接电池管理系统实现上述功能的过程如下：由外接的电池管理系统提供当前单体电池的电压信息和整组电池的平均电压信息，进而做出比较判断。3) The process of the external battery management system to realize the above functions is as follows: the external battery management system provides the voltage information of the current single battery and the average voltage information of the whole battery group, and then makes a comparison judgment.
所述的均衡执行电路分为充电回路、放电回路和储能元件。其中，储能元件优选超级电容；充电回路用于在当前单体电池电压高于整组平均电压的情况下，使电池对超级电容充电，其中含一个稳压模块，用于提升充电过程的效率，该模块优选凌力特尔公司的LTC3128芯片配合相关电路搭建；放电回路用于在当前单体电池电压低于整组平均电压的情况下，使超级电容对电池放电，其中含有一个受控开关，优选松下公司PhotoMos系列的AQY272芯片，用于控制放电回路的通断。The balanced execution circuit is divided into a charging circuit, a discharging circuit and an energy storage element. Among them, the energy storage element is preferably a supercapacitor; the charging circuit is used to charge the battery to the supercapacitor when the current voltage of the single battery is higher than the average voltage of the entire group, and includes a voltage stabilization module to improve the efficiency of the charging process , the module is preferably built with the LTC3128 chip of Linear Technology Co., Ltd. and related circuits; the discharge circuit is used to discharge the supercapacitor to the battery when the current voltage of the single battery is lower than the average voltage of the whole group, which contains a controlled switch , preferably the AQY272 chip of Panasonic's PhotoMos series, which is used to control the on-off of the discharge circuit.
本发明实施例中，均衡过程时，可通过外接电池管理系统获取电池组的各个单体电池电压信息，若其间的差值高于设定阈值，则开启电机，带动电刷旋转，执行均衡操作；其后每隔一定时间获取一次各个单体电池电压情况，直至差值低于阈值，关闭电机，停止旋转，结束均衡过程。In the embodiment of the present invention, during the equalization process, the voltage information of each single battery of the battery pack can be obtained through the external battery management system. If the difference between them is higher than the set threshold, the motor is turned on to drive the brush to rotate, and the equalization operation is performed. ; Afterwards, the voltage of each single battery is obtained at regular intervals until the difference is lower than the threshold, the motor is turned off, the rotation is stopped, and the equalization process is ended.
本发明实施例的上述方案中，采用旋转电刷结构代替电子开关来实现电路切换，结构简单，操作方便，可以解决现有均衡电路方案中由于大量采用电子开关而造成的元件数量多，电路复杂度高，控制难度高等问题；同时，可以解除电子开关对均衡电流的限制，在电刷结构容许的条件下增大均衡电流，提高均衡的速度；采用超级电容等储能元件和稳压充电模块，提高能量转移的效率，获取稳定的均衡效果。In the above solution of the embodiment of the present invention, the rotating brush structure is used instead of the electronic switch to realize circuit switching, the structure is simple, the operation is convenient, and it can solve the problem of large number of components and complicated circuit caused by the large number of electronic switches in the existing equalization circuit solution At the same time, the restriction of the electronic switch on the equalization current can be lifted, and the equalization current can be increased under the conditions allowed by the brush structure, and the equalization speed can be improved; energy storage components such as supercapacitors and voltage-stabilizing charging modules are used , improve the efficiency of energy transfer, and obtain a stable equilibrium effect.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将系统的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the system is divided into different functional modules to complete all or part of the functions described above.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明披露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书的保护范围为准。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277980.4A CN104836307B (en) | 2015-05-26 | 2015-05-26 | Power lithium battery pack balanced system adopting rotary brush structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277980.4A CN104836307B (en) | 2015-05-26 | 2015-05-26 | Power lithium battery pack balanced system adopting rotary brush structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104836307A CN104836307A (en) | 2015-08-12 |
| CN104836307B true CN104836307B (en) | 2017-05-03 |
Family
ID=53814001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510277980.4A Expired - Fee Related CN104836307B (en) | 2015-05-26 | 2015-05-26 | Power lithium battery pack balanced system adopting rotary brush structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104836307B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086220B (en) * | 2019-04-18 | 2021-10-22 | 重庆宜邦科技有限责任公司 | Periodic voltage balancing method for single batteries of energy storage battery pack |
| CN110696625A (en) * | 2019-11-18 | 2020-01-17 | 珠海格力电器股份有限公司 | Control method of battery management system and active balancing topology device |
| WO2021223158A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Battery management apparatus and system, and battery, mobile device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645610A (en) * | 2009-09-03 | 2010-02-10 | 深圳市晖谱能源科技有限公司 | Device for equalizing charge of battery and method thereof |
| CN102280912A (en) * | 2011-06-10 | 2011-12-14 | 深圳市金威源科技股份有限公司 | Equalization circuit of charge and discharge circuit of battery pack |
| CN103326439A (en) * | 2013-06-28 | 2013-09-25 | 安科智慧城市技术（中国）有限公司 | Equalization circuit of battery pack and equalization method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8994331B2 (en) * | 2012-05-31 | 2015-03-31 | Motorola Solutions, Inc. | Method and apparatus for adapting a battery voltage |
-
2015
- 2015-05-26 CN CN201510277980.4A patent/CN104836307B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645610A (en) * | 2009-09-03 | 2010-02-10 | 深圳市晖谱能源科技有限公司 | Device for equalizing charge of battery and method thereof |
| CN102280912A (en) * | 2011-06-10 | 2011-12-14 | 深圳市金威源科技股份有限公司 | Equalization circuit of charge and discharge circuit of battery pack |
| CN103326439A (en) * | 2013-06-28 | 2013-09-25 | 安科智慧城市技术（中国）有限公司 | Equalization circuit of battery pack and equalization method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104836307A (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114709896B (en) | Battery charging and discharging system based on reconstruction and charging and discharging control method | |
| US9013148B2 (en) | Lithium-ion battery pack and method of charge/discharge equalizing | |
| CN109510319B (en) | Energy storage battery system composed of super capacitor, lithium battery and lead-acid battery | |
| CN104377778B (en) | Adjacent-Cell-to-Cell equalizing circuit based on LCL resonant transformation and implementation method | |
| CN105429212A (en) | Battery pack voltage equalization control circuit and battery management equipment | |
| CN203119557U (en) | Battery pack active balancing device based on cascading structure | |
| CN108599282A (en) | A kind of lithium-ion-power cell group charge and discharge active equalization system and method | |
| CN101188364A (en) | A voltage equalization circuit for a series supercapacitor bank | |
| CN104836307B (en) | Power lithium battery pack balanced system adopting rotary brush structure | |
| CN103094938A (en) | Battery series-parallel connection self-balancing device | |
| CN205195338U (en) | A series parallel transition device for storage battery | |
| CN108134425A (en) | Lithium battery balance control system and its control method | |
| CN203339780U (en) | A single battery voltage equalization module | |
| JP2014176152A (en) | Power storage system | |
| CN111900773A (en) | Lithium battery short circuit protection circuit and method | |
| CN203086196U (en) | Multi-section series lithium battery equalization circuit | |
| CN104836305A (en) | Balanced discharging circuit of battery management system | |
| CN111641237A (en) | Autonomous equalization circuit for battery pack | |
| CN202309146U (en) | Automatic equalizing device for battery series-parallel connection | |
| CN104393631A (en) | Electric quantity balancing system and balancing method | |
| CN214176930U (en) | Multi-power supply switching circuit | |
| CN105162200A (en) | Layered battery pack balancing circuit | |
| CN108649639A (en) | A kind of circuit of battery pack balancing and equalization methods | |
| CN204794241U (en) | Controllable discharge device that fills reaches equalizer circuit based on super capacitor of this device | |
| CN204559135U (en) | power balance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 |