WO2021008036A1 - 充电控制装置 - Google Patents
充电控制装置 Download PDFInfo
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- WO2021008036A1 WO2021008036A1 PCT/CN2019/118047 CN2019118047W WO2021008036A1 WO 2021008036 A1 WO2021008036 A1 WO 2021008036A1 CN 2019118047 W CN2019118047 W CN 2019118047W WO 2021008036 A1 WO2021008036 A1 WO 2021008036A1
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- battery pack
- charging control
- preset
- parameters
- module
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Definitions
- the utility model relates to the technical field of charging management, in particular to a charging control device.
- the battery pack in the household appliance is usually equipped with a charging control device.
- the charging control device automatically terminates the charging of the battery pack.
- the battery management chip can not only monitor the total voltage of the battery pack in real time, but also monitor the cell voltage and temperature of the battery pack. However, when the acquisition part or the control part of the battery management chip fails, the charging control device cannot realize the function of monitoring whether the battery pack is overcharged, and the battery pack may still be overcharged.
- the utility model aims to provide a charging control device which can avoid overcharging of a battery pack.
- a charging control device includes a first control module and a first switch module connected to the first control module, and the first switch module is connected to charging Terminal and battery pack, the first control module can collect the parameters of the battery pack, compare the parameters of the battery pack with preset parameters, and according to the comparison result, realize the pairing through the first switch module
- the charging control device further includes a second control module and a second switch module connected to the second control module, the second switch module is connected in series with the first switch module, so The second control module can collect and obtain the parameters of the battery pack, compare the parameters of the battery pack with the preset parameters, and according to the comparison result, realize the control of the battery pack through the second switch module Charge control.
- the first control module includes an acquisition circuit and a first control circuit
- the acquisition circuit can acquire parameters of the battery pack
- the first control circuit can compare the parameters of the battery pack with the preset Set the parameters for comparison and generate the first set of control signals.
- the first control module includes a battery management chip
- the battery management chip can collect parameters of the battery pack, compare the parameters of the battery pack with the preset parameters, and generate a first set control signal.
- the second control module includes a single-chip microcomputer, and the single-chip microcomputer can collect the total voltage of the battery pack, compare the total voltage of the battery pack with the preset total voltage in the preset parameters, and generate a third group control signal.
- the first set of control signals includes at least a first charging control signal and a second charging control signal; when the parameter of the battery pack is not greater than the preset parameter, the battery management chip generates the first Charge control signal, and realize the path of the first switch module according to the first charge control signal; when the parameter of the battery pack is greater than the preset parameter, the battery management chip generates the second charge control Signal, and realize the disconnection of the first switch module according to the second charging control signal.
- the third group of control signals includes at least a third charging control signal and a fourth charging control signal; when the total voltage of the battery group is not greater than the preset total voltage, the single-chip microcomputer generates the third Charge control signal, and realize the path of the second switch module according to the third charge control signal; when the total voltage of the battery pack is greater than the preset total voltage, the single-chip microcomputer generates the fourth charge control Signal and realize the disconnection of the second switch module according to the fourth charging control signal.
- the first control module is connected to the second control module, the first control module outputs a second group of control signals related to the on/off of the first control module, and the second control module receives the The second group of control signals.
- the first control module is connected to the second control module, the first control module can output a second control signal related to the on/off of the first control module, and the second control module receives the The second control signal.
- the parameters of the battery pack include a total voltage and a cell voltage
- the preset parameters include a preset total voltage and a preset cell voltage.
- the first switch module includes a MOS tube.
- the battery pack charging control device further includes a timing unit, and when the parameter of the battery pack collected by the second control module reaches a second preset value, the timing unit records the first time, when the When the first time reaches the preset time, the second control module turns off the second switch module.
- the charging control device of the present invention not only includes a first control module, but also includes a second control module.
- the first control module and the second control module simultaneously monitor the battery pack;
- the first switch module is connected to the charging terminal and the battery pack,
- the first control module can realize the charging control of the battery pack through the first switch module, and the first switch module is connected in series with the second switch module, so that the second control module can realize the charging control of the battery pack through the second switch module;
- Either the first control module or the second control module detects that the battery pack is in an overcharged state.
- Both the first control module and the second control module can stop the battery pack from continuing to charge through its corresponding switch module, thereby reducing the battery pack length. The possibility of time being overcharged.
- Fig. 1 is a schematic diagram of a battery pack charging circuit of an exemplary embodiment of the present invention
- Fig. 2 is a block diagram of circuit connections of a battery pack charging control device according to an exemplary embodiment of the present invention.
- the "upper” or “lower” of the first feature of the second feature may include direct contact between the first and second features, or include the first feature.
- the second feature is not in direct contact but is in contact with another feature between them.
- the present invention provides a battery pack charging control device, including a battery pack 1, a first control module 2, a second control module 3, a first switch module 4, a second switch module 5 and Charging terminal 6.
- the first switch module 4 is connected to the charging terminal 6 and the battery pack 1, and the first switch module 4 is connected to the first control module 2.
- the first control module 2 can collect and obtain the parameters of the battery pack 1, compare the reference of the battery pack 1 with preset parameters, and according to the result of the comparison, the first switch module 4 realizes the The charging control of the battery pack 1 is described.
- the first control module 2 includes a battery management chip that can collect parameters of the battery pack 1, and compare the parameters of the battery pack 1 with preset parameters to generate a first Group control signal.
- the first set of control signals includes at least a first charging control signal and a second charging control signal; when the parameter of the battery pack 1 is not greater than the preset parameter, the battery management chip generates the first charging control Signal and realize the path of the first switch module 4 according to the first charging control signal; when the parameter of the battery pack 1 is greater than the preset parameter, the battery management chip generates the second charging control Signal, and realize the disconnection of the first switch module 4 according to the second charging control signal.
- the battery management chip is specifically PT6007.
- the battery management chip can also select other models that can collect battery pack parameters, which will not be repeated here.
- the battery management chip can collect the parameters of the battery pack in real time.
- the parameters of the battery pack include the total voltage of the battery pack and the cell voltage.
- the parameters of the battery pack may also include the battery pack.
- the preset parameters include preset total voltage, preset cell voltage, preset temperature, etc.
- the first set of control signals may also include other charging control signals.
- the battery management chip may also A charge control signal is generated to reduce the total voltage or real-time temperature of the battery pack, and other parameters, thereby reducing the risk of overcharging the battery pack 1.
- the first switch module 4 is specifically a MOS transistor.
- the first switch module may also be other types of switches.
- the first control module may not be a battery management chip, but may be an acquisition circuit and a first control circuit, and the acquisition circuit may acquire the parameters of the battery pack.
- a control circuit can compare the parameters of the battery pack with preset parameters and generate the first set of control signals.
- the illustrated battery pack charging circuit is taken as an example to further illustrate the specific working principle of the charging control device.
- the illustrated battery pack charging circuit is only one type.
- the charging control device may also be used in other charging circuits.
- the battery management chip when the parameters of the battery pack 1 collected by the battery management chip are not greater than the preset parameters, the battery management chip outputs a high level to connect the transistor Q4, so that the resistor R5 is connected to the MOS transistor Q3 Connected, so that the MOS transistor Q3 is turned on.
- the battery management chip When the parameter of the battery pack 1 is greater than the preset parameter, the battery management chip generates the second charging control signal, and realizes the disconnection of the first switch module 4 according to the second charging control signal .
- the battery management chip when the parameter of the battery pack 1 collected by the battery management chip is greater than the preset parameter, the battery management chip outputs a low level to make the transistor Q4 disconnect, so that the resistor R5 It cannot communicate with the MOS transistor Q3, so the MOS transistor Q3 is disconnected.
- the charging control device further includes a second control module 3 and the second switch module 5 connected to the second control module 3.
- the second control module 3 can collect information about the battery pack 1 The total voltage is to compare the total voltage of the battery pack 1 with the preset total voltage in the preset parameters, and according to the comparison result, the second switch module 5 realizes the charging control of the battery pack 1.
- the second control module includes a single-chip microcomputer that can collect the total voltage of the battery pack, compare the total voltage of the battery pack with a preset total voltage, and generate a third group of control signals.
- the third group of control signals includes at least a third charging control signal and a fourth charging control signal; when the total voltage of the battery pack 1 is not greater than the preset total voltage, the single-chip microcomputer generates a third charging control signal, And according to the third charging control signal, the path of the second switch module 5 is realized; when the total voltage of the battery pack 1 is greater than the preset total voltage, the single-chip microcomputer generates a fourth charging control signal, and according to the The fourth charging control signal realizes the disconnection of the second switch module 5.
- the specific model of the single-chip microcomputer is HT45F0084
- the second switch module 5 is specifically a MOS tube.
- the single-chip microcomputer may also select other models, and the second switch Module 5 can also select other types of switches.
- the second control module 3 only collects the total voltage of the battery pack 1 is only an embodiment. In other embodiments, the second control module 3 may also collect the total voltage of the battery pack 1. The cell voltage or the temperature of the battery pack 1 is collected.
- the single-chip microcomputer When the total voltage of the battery pack 1 is not greater than the preset total voltage, the single-chip microcomputer generates a third charging control signal, and implements the second switch module 5 according to the third charging control signal. Access. Specifically in this embodiment, when the total voltage of the battery pack collected by the single-chip microcomputer is not greater than the preset total voltage, the single-chip microcomputer outputs a high level to connect the transistor Q2, so that the resistor R2 is connected to the MOS transistor Q1 to Therefore, the MOS transistor Q1 is turned on. When the total voltage of the battery pack 1 is greater than the preset total voltage, the single-chip microcomputer generates a fourth charging control signal, and the second switch module 5 is turned off according to the fourth charging control signal.
- the single-chip microcomputer when the total voltage of the battery pack collected by the single-chip microcomputer is greater than the preset total voltage, the single-chip microcomputer outputs a low level to disconnect the transistor Q2, so that the resistor R2 is connected to the The MOS transistor Q1 cannot be connected, so the MOS transistor Q1 is disconnected.
- the first switch module 4 is connected in series with the second switch module 5, so that either the first control module 2 or the second control module 3 detects that the battery pack 1 is in an overcharged state, Both the first control module 2 and the second control module 3 can stop the battery pack 1 from continuing to charge through their corresponding switch modules.
- the single-chip microcomputer detects that the total voltage of the battery pack 1 is greater than the preset voltage, the single-chip can output a low level to turn off the MOS transistor Q1, so that the charging The circuit is open; when the battery management chip detects that the parameter of the battery pack 1 is greater than the preset parameter, the battery management chip outputs a low level to make the MOS transistor Q3 disconnect, so that the charging circuit Open circuit.
- the charging circuit can be disconnected, thereby effectively preventing the battery pack 1 from overcharging.
- the first control module 2 is connected to the second control module 3.
- the first control module 2 can output a second set of control signals related to the on/off of the first control module 2.
- the second control module 2 can receive the second set of control signals, and the second set of control signals includes at least a fifth charging control signal.
- the second set of control signals is related to whether the first control module 2 is operating normally, that is, when the circuit of the battery management chip is connected, the battery management chip generates the fifth Charging control signal, the single-chip microcomputer can obtain the fifth charging control signal in real time and continue to work in the original working state; when the circuit of the battery management chip fails, the single-chip microcomputer cannot continue to receive the fifth charging Control signal.
- the single-chip microcomputer turns off the second switch module 5 to disconnect the charging circuit, thereby further reducing the risk of overcharging the battery pack 1.
- the second set of control signals may also include a sixth charging control signal, that is, the battery management chip generates a fifth charging control signal and a sixth charging control signal at the same time, when When the single-chip microcomputer simultaneously receives the fifth charging control signal and the sixth charging control signal, it is determined that the battery management chip is working normally, and when the single-chip microcomputer cannot receive the second set of control signals simultaneously, the The single-chip microcomputer turns off the second switch module 5 to make the charging circuit open.
- the battery pack charging control device further includes a timing unit (not shown), and when the total voltage of the battery pack collected by the second control module 3 reaches a second preset value, the timing unit records At the first time, when the first time reaches a preset time, the second control module 3 turns off the second switch module 5.
- the timing unit is integrated in the single-chip microcomputer.
- the timing unit may also be a separate module.
- the timing unit starts to record the first time. It should be noted that the second preset value is less than the preset in the preset parameters Total voltage.
- the single-chip microcomputer turns off the second switch module 5, thereby interrupting the charging of the battery pack 1, thereby reducing the risk of overcharging the battery pack 1.
- the second preset value is only slightly smaller than the preset total voltage
- the preset time is when the battery pack 1 is in a normal charging state, the total voltage of the battery pack is changed from the first Second, the time required for the preset value to increase to the preset total voltage.
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Abstract
一种充电装置，包含：第一控制模块（2）及与第一控制模块（2）相连的第一开关模块（4），第一开关模块（4）连接充电端（6）及电池组（1），第一控制模块（2）可采集获得电池组（1）的参数，将电池组（1）的参数与预设参数进行比较，并根据比较的结果，通过第一开关模块（4）实现对电池组（1）的充电控制，充电控制装置还包含第二控制模块（3）及与第二控制模块（3）相连的第二开关模块（5），第二开关模块（5）与第一开关模块（4）串联，第二控制模块（3）可采集获得电池组（1）的参数，将电池组（1）的参数与预设参数进行比较，并根据比较的结果，通过第二开关模块（5）实现对电池组（1）的充电控制。能够有效避免电池组（1）过充。
Description
本实用新型涉及充电管理技术领域，尤其涉及一种充电控制装置。
为了避免家用电器充电完成后仍一直处于充电状态，家用电器中的电池组通常设有充电控制装置，当电池组的电压到达预设电压时，充电控制装置会自动终止电池组的充电。
现有的充电控制装置大多仅设有一组充电控制模块，比如电池管理芯片，通过电池管理芯片不仅可以实时监控电池组的总电压，还可以监控电池组的单体电压及温度。然而，当电池管理芯片的采集部分或控制部分失效时，充电控制装置便会无法实现监控电池组是否过充的功能，电池组仍可能会过充。
实用新型内容
本实用新型旨在提供一种能够避免电池组过充的充电控制装置。
为了解决上述技术问题，本实用新型所采取的技术方案如下：一种充电控制装置，包含第一控制模块及与所述第一控制模块相连的第一开关模块，所述第一开关模块连接充电端及电池组，所述第一控制模块可采集获得所述电池组的参数，将所述电池组的参数与预设参数进行比较，并根据比较的结果，通过所述第一开关模块实现对所述电池组的充电控制，所述充电控制装置还包含第二控制模块及与所述第二控制模块相连的第二开关模块，所述第二开关模块与所述第一开关模块串联，所述第二控制模块可采集获得所述电池组的参数，将所述电池组的参数与所述预设参数进行比较，并根据比较的结果，通过所述第二开关模块实现对所述电池组的充电控制。
进一步地，所述第一控制模块包含采集电路及第一控制电路，所述采集电路可采集获得所述电池组的参数，所述第一控制电路可将所述电池组的参数与所述预设参数进行比较，并产生第一组控制信号。
进一步地，所述第一控制模块包含电池管理芯片，所述电池管理芯片可采集获得所述电池组的参数，将所述电池组的参数与所述预设参数进行比较，并产生第一组控制信号。
进一步地，所述第二控制模块包含单片机，所述单片机可采集所述电池组的总电压，将所述电池组的总电压与预设参数中的预设总电压比较，并产生第三组控制信号。
进一步地，所述第一组控制信号至少包含第一充电控制信号及第二充电控制信号；当所述电池组的参数不大于所述预设参数时，所述电池管理芯片产生所述第一充电控制信号，并根据所述第一充电控制信号实现所述第一开关模块的通路；当所述电池组的参数大于所述预设参数时，所述电池管理芯片产生所述第二充电控制信号，并根据所述第二充电控制信号实现所述第一开关模块的断开。
进一步地，所述第三组控制信号至少包含第三充电控制信号及第四充电控制信号；当所述电池组的总电压不大于所述预设总电压时，所述单片机产生所述第三充电控制信号，并根据所述第三充电控制信号实现所述第二开关模块的通路；当所述电池组的总电压大于所述预设总电压时，所述单片机产生所述第四充电控制信号，并根据所述第四充电控制信号实现所述第二开关模块的断开。
进一步地，所述第一控制模块与所述第二控制模块相连，所述第一控制模块输出关于所述第一控制模块通断的第二组控制信号，所述第二控制模块接收所述第二组控制信号。
进一步地，所述第一控制模块与所述第二控制模块相连，所述第一控制模块可输出关于所述第一控制模块通断的第二控制信号，所述第二控制模块 接收所述第二控制信号。
进一步地，所述电池组的参数包含总电压及单电池电压，所述预设参数包含预设总电压及预设单电池电压。
进一步地，所述第一开关模块包含MOS管。
进一步地，所述电池组充电控制装置还包含计时单元，所述第二控制模块采集获得的所述电池组的参数到达第二预设值时，所述计时单元记录第一时间，当所述第一时间到达预设时间时，所述第二控制模块断开所述第二开关模块。
本实用新型的充电控制装置，不仅包含第一控制模块，同时还包含第二控制模块，第一控制模块及第二控制模块同时对电池组进行监控；第一开关模块连接充电端及电池组，第一控制模块可通过第一开关模块实现对电池组的充电控制，第一开关模块与第二开关模块串联，以此，第二控制模块可通过第二开关模块实现对电池组的充电控制；第一控制模块或第二控制模块任一检测到电池组处于过充状态，第一控制模块及第二控制模块都可通过其对应的开关模块中止电池组继续充电，从而，降低了电池组长时间处于过充状态的可能性。
图1是本实用新型一示例性实施例的电池组充电回路的示意图；
图2是本实用新型一示例性实施例的电池组充电控制装置的电路连接线框图。
以下将结合附图所示的具体实施方式对本实用新型进行详细描述。但这些实施方式并不限制本实用新型，本领域的普通技术人员根据这些实施方式 所做出的结构、方法、或功能上的变换均包含在本实用新型的保护范围内。
需要理解的是，在本实用新型具体实施方式的描述中，“第一”、“第二”等术语仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者多个该特征。
在本实用新型具体实施方式中，除非另有明确的规定和限定，“相连”、“连接”等术语应做广义理解，例如，可以是固定连接，也可以是活动连接，还可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连；可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
在本实用新型具体实施方式中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。
在本实用新型具体实施方式中，除非另有明确的规定和限定，术语“多”是指两个或两个以上。
请参考图1-图2，本实用新型提供了一种电池组充电控制装置，包含电池组1、第一控制模块2、第二控制模块3、第一开关模块4、第二开关模块5及充电端6。
所述第一开关模块4连接所述充电端6及所述电池组1，所述第一开关模块4与所述第一控制模块2相连。所述第一控制模块2可采集获得所述电池组1的参数，将所述电池组1的参考与预设参数进行比较，并根据比较的结果，通过所述第一开关模块4实现对所述电池组1的充电控制。具体地，所述第一控制模块2包含电池管理芯片，所述电池管理芯片可采集获得所述电池组1的参数，并将所述电池组1的参数与预设参数进行比较，产生第一组控制信号。所述第一组控制信号至少包含第一充电控制信号及第二充电控 制信号；当所述电池组1的参数不大于所述预设参数时，所述电池管理芯片产生所述第一充电控制信号，并根据所述第一充电控制信号实现所述第一开关模块4的通路；当所述电池组1的参数大于所述预设参数时，所述电池管理芯片产生所述第二充电控制信号，并根据所述第二充电控制信号实现所述第一开关模块4的断开。在本实施例中，所述电池管理芯片具体为PT6007，当然，在其他实施例中，所述电池管理芯片也可以选择其他可采集到电池组参数的型号，这里便不再赘述。所述电池管理芯片可实时采集获得电池组的参数，所述电池组的参数包含电池组的总电压及单电池电压，当然，在其他实施例中，所述电池组的参数还可以包含电池组的实时温度等；对应地，所述预设参数则包含预设总电压、预设单电池电压、预设温度等。需要注意的是，在其他实施例中，所述第一组控制信号也可以包含其他充电控制信号，比如，当所述电池组的参数大于所述预设参数时，所述电池管理芯片也可以产生充电控制信号以降低所述电池组的总电压或实时温度等参数，从而降低所述电池组1过充的风险。同时，在本实施例中，所述第一开关模块4具体为MOS管，当然，在其他实施例中，所述第一开关模块也可以是其他类型的开关。进一步地，在其他实施例中，所述第一控制模块也可以不是电池管理芯片，而可以是采集电路及第一控制电路，所述采集电路可采集获得所述电池组的参数，所述第一控制电路可将所述电池组的参数与预设参数进行比较，并产生所述第一组控制信号。
请具体参考图2，在本实施例中，以图示电池组充电回路为例进一步说明所述充电控制装置的具体工作原理，但是，需要注意的是，图示电池组充电回路仅是一种可选的实施方式，在其他实施例中，所述充电控制装置也可以是用于其他充电回路。当电池管理芯片采集到的电池组1的参数不大于所述预设参数时，所述电池管理芯片产生第一充电控制信号，并根据所述第一充电控制信号实现第一开关模块4的通路。具体到本实施例中，当电池管理芯片采集到的电池组1的参数不大于所述预设参数时，所述电池管理芯片输 出高电平以使得三极管Q4连通，从而电阻R5与MOS管Q3连通，以此，所述MOS管Q3导通。当所述电池组1的参数大于所述预设参数时，所述电池管理芯片产生所述第二充电控制信号，并根据所述第二充电控制信号实现所述第一开关模块4的断开。具体到本实施例中，当电池管理芯片采集到的电池组1的参数大于所述预设参数时，所述电池管理芯片输出低电平以使得所述三极管Q4断开，从而所述电阻R5与所述MOS管Q3无法连通，以此，所述MOS管Q3断开。
进一步地，所述充电控制装置还包含第二控制模块3及与所述第二控制模块3相连的所述第二开关模块5，所述第二控制模块3可采集获得所述电池组1的总电压，将所述电池组1的总电压与预设参数中的预设总电压进行比较，并根据比较的结果，通过所述第二开关模块5实现对所述电池组1的充电控制。具体地，所述第二控制模块包含单片机，所述单片机可采集所述电池组的总电压，将所述电池组的总电压与预设总电压比较，并产生第三组控制信号。所述第三组控制信号至少包含第三充电控制信号及第四充电控制信号；当所述电池组1的总电压不大于所述预设总电压时，所述单片机产生第三充电控制信号，并根据所述第三充电控制信号实现第二开关模块5的通路；当所述电池组1的总电压大于所述预设总电压时，所述单片机产生第四充电控制信号，并根据所述第四充电控制信号实现所述第二开关模块5的断开。在本实施例中，所述单片机具体型号为HT45F0084，且所述第二开关模块5具体为MOS管，当然，在其他实施例中，所述单片机也可以是选择其他型号，所述第二开关模块5也可以是选择其他类型的开关。需要注意的是，所述第二控制模块3仅采集所述电池组1总电压仅是一种实施例，在其他实施例中，所述第二控制模块3也可以采集所述电池组1的单电池电压或是采集所述电池组1的温度。
请再次参考图2，当所述电池组1的总电压不大于所述预设总电压时，所述单片机产生第三充电控制信号，并根据所述第三充电控制信号实现第二 开关模块5的通路。具体到本实施例中，当单片机采集到的电池组的总电压不大于所述预设总电压时，所述单片机输出高电平以使得三极管Q2连通，从而电阻R2与MOS管Q1连通，以此，所述MOS管Q1导通。当所述电池组1的总电压大于所述预设总电压时，所述单片机产生第四充电控制信号，并根据所述第四充电控制信号实现所述第二开关模块5的断开。具体到本实施例中，所述单片机采集到的电池组的总电压大于所述预设总电压时，所述单片机输出低电平以使得所述三极管Q2断开，从而所述电阻R2与所述MOS管Q1无法连通，以此，所述MOS管Q1断开。
进一步地，所述第一开关模块4与所述第二开关模块5串联，以此，所述第一控制模块2或所述第二控制模块3任一检测到电池组1处于过充状态，所述第一控制模块2及所述第二控制模块3都可通过其对应的开关模块中止所述电池组1继续充电。具体到本实施例中，当所述单片机检测到所述电池组1的总电压大于预设电压时，所述单片机可通过输出低电平以使得所述MOS管Q1断开，从而所述充电回路断路；当所述电池管理芯片检测到所述电池组1的参数大于所述预设参数时，所述电池管理芯片输出低电平以使得所述MOS管Q3断开，从而所述充电回路断路。以此，当单片机或电池管理芯片任一检测到电池组1处于过充状态，都可以实现充电回路的断路，从而有效防止所述电池组1过充。
进一步地，所述第一控制模块2与所述第二控制模块3相连，第一控制模块2可输出关于所述第一控制模块2通断的第二组控制信号，所述第二控制模块2可接收所述第二组控制信号，所述第二组控制信号至少包含第五充电控制信号。具体地，在本实施例中，所述第二组控制信号与所述第一控制模块2是否正常运行相关，即：当电池管理芯片的电路连通时，所述电池管理芯片产生所述第五充电控制信号，所述单片机可实时获得所述第五充电控制信号，并以原工作状态继续进行工作；当所述电池管理芯片的电路出现故障，所述单片机无法继续接受到所述第五充电控制信号，此时，所述单片机 断开所述第二开关模块5以使得所述充电回路断路，以此，进一步地降低了所述电池组1过充的风险。需要注意到是，在其他实施例中，所述第二组控制信号也可以还包含第六充电控制信号，即：所述电池管理芯片同时产生第五充电控制信号及第六充电控制信号，当所述单片机同时接收到所述第五充电控制信号及第六充电控制信号时，判定所述电池管理芯片正常工作，而当所述单片机无法同时接收到所述第二组控制信号时，所述单片机断开所述第二开关模块5以使得所述充电回路断路。
进一步地，所述电池组充电控制装置还包含计时单元(未图示)，所述第二控制模块3采集到的所述电池组的总电压到达第二预设值时，所述计时单元记录第一时间，当所述第一时间到达预设时间时，所述第二控制模块3断开所述第二开关模块5。具体地，在本实施例中，所述计时单元集成于所述单片机，当然，在其他实施例中，所述计时单元也可以是一单独的模块。当单片机采集到的电池组的总电压到达第二预设值时，所述计时单元开始记录第一时间，需要注意的是，所述第二预设值小于所述预设参数中的预设总电压。当第一时间到达预设时间时，所述单片机断开所述第二开关模块5，从而中断了所述电池组1的充电，以此，降低了所述电池组1过充的风险。需要注意的是，所述第二预设值仅是稍小于所述预设总电压，且所述预设时间为所述电池组1处于正常充电状态时，电池组的总电压由所述第二预设值增长到所述预设总电压所需的时间。
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
上文所列出的一系列的详细说明仅仅是针对本实用新型的可行性实施方式的具体说明，它们并非用以限制本实用新型的保护范围，凡未脱离本实用新型技艺精神所作的等效实施方式或变更均应包含在本实用新型的保护范围 之内。
Claims (10)
- 一种充电控制装置，包含第一控制模块及与所述第一控制模块相连的第一开关模块，所述第一开关模块连接充电端及电池组，所述第一控制模块可采集获得所述电池组的参数，将所述电池组的参数与预设参数进行比较，并根据比较的结果，通过所述第一开关模块实现对所述电池组的充电控制，其特征在于，所述充电控制装置还包含第二控制模块及与所述第二控制模块相连的第二开关模块，所述第二开关模块与所述第一开关模块串联，所述第二控制模块可采集获得所述电池组的参数，将所述电池组的参数与所述预设参数进行比较，并根据比较的结果，通过所述第二开关模块实现对所述电池组的充电控制。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述第一控制模块包含采集电路及第一控制电路，所述采集电路可采集获得所述电池组的参数，所述第一控制电路可将所述电池组的参数与所述预设参数进行比较，并产生第一组控制信号。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述第一控制模块包含电池管理芯片，所述电池管理芯片可采集获得所述电池组的参数，将所述电池组的参数与所述预设参数进行比较，并产生第一组控制信号。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述第二控制模块包含单片机，所述单片机可采集所述电池组的总电压，将所述电池组的总电压与预设参数中的预设总电压比较，并产生第三组控制信号。
- 根据权利要求3所述的一种充电控制装置，其特征在于，所述第一组控制信号至少包含第一充电控制信号及第二充电控制信号；当所述电池组的参数不大于所述预设参数时，所述电池管理芯片产生所述第一充电控制信号，并根据所述第一充电控制信号实现所述第一开关模块的通路；当所 述电池组的参数大于所述预设参数时，所述电池管理芯片产生所述第二充电控制信号，并根据所述第二充电控制信号实现所述第一开关模块的断开。
- 根据权利要求4所述的一种充电控制装置，其特征在于，所述第三组控制信号至少包含第三充电控制信号及第四充电控制信号；当所述电池组的总电压不大于所述预设总电压时，所述单片机产生所述第三充电控制信号，并根据所述第三充电控制信号实现所述第二开关模块的通路；当所述电池组的总电压大于所述预设总电压时，所述单片机产生所述第四充电控制信号，并根据所述第四充电控制信号实现所述第二开关模块的断开。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述第一控制模块与所述第二控制模块相连，所述第一控制模块输出关于所述第一控制模块通断的第二组控制信号，所述第二控制模块接收所述第二组控制信号。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述电池组的参数包含总电压及单电池电压，所述预设参数包含预设总电压及预设单电池电压。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述第一开关模块包含MOS管。
- 根据权利要求1所述的一种充电控制装置，其特征在于，所述电池组充电控制装置还包含计时单元，所述第二控制模块采集获得的所述电池组的参数到达第二预设值时，所述计时单元记录第一时间，当所述第一时间到达预设时间时，所述第二控制模块断开所述第二开关模块。
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