WO2016131268A1 - 电压测量方法及装置 - Google Patents

电压测量方法及装置 Download PDF

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Publication number
WO2016131268A1
WO2016131268A1 PCT/CN2015/090459 CN2015090459W WO2016131268A1 WO 2016131268 A1 WO2016131268 A1 WO 2016131268A1 CN 2015090459 W CN2015090459 W CN 2015090459W WO 2016131268 A1 WO2016131268 A1 WO 2016131268A1
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Prior art keywords
battery
voltage
signal lines
detection signal
measuring
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PCT/CN2015/090459
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English (en)
French (fr)
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刘昭元
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中兴通讯股份有限公司
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Publication of WO2016131268A1 publication Critical patent/WO2016131268A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

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  • the present invention relates to the field of communications, and in particular to a voltage measurement method and apparatus.
  • the current terminal uses an external battery and an internal battery. Since there is inevitably an additional resistance on the battery path, the resistance is about 80-200 m ⁇ .
  • the additional resistors mainly include: battery lead resistance, internal resistance of the battery protection circuit, battery lead resistance, contact resistance between the battery side connector and the motherboard side connector. These additional resistors can cause inaccurate measurement of the fuel gauge and can result in inaccurate charging voltage sampling.
  • FIG. 1 is a schematic diagram of voltage measurement in the related art.
  • FIG. 1 shows a scheme commonly used in current terminals, and a battery voltage sampling point is disposed near the battery connector (7).
  • This solution can only reduce the influence of the additional resistance of the printed circuit board (PCB) trace (14) on the motherboard (8), and can not eliminate the contact resistance between the battery side and the contact between the battery connectors. The effect of resistance.
  • PCB printed circuit board
  • the current solution only reduces the additional resistance of the PCB trace (14) on the motherboard (8).
  • the effect of the battery's own additional resistance and the contact resistance between the battery connectors is not eliminated. These effects can cause the fuel gauge error. And charging control error.
  • These additional resistors mainly include: cell lead resistance, internal resistance of the battery protection circuit, battery lead resistance, contact resistance between the battery side connector and the motherboard side connector.
  • the additional resistance is 100m ⁇ and the discharge current value is 2A, so that the additional voltage drop across the current path is 0.2V.
  • the charging process is divided into three stages: trickle charging, constant current charging, and constant voltage charging.
  • the constant current charging current is the largest and the charging speed is the fastest.
  • the judgment flag of constant current to constant voltage charging is that the battery voltage reaches a certain threshold. After exceeding this threshold, the charging process is switched from constant current charging to constant voltage charging mode.
  • the present invention provides a voltage measuring method and apparatus to at least solve the problem of large battery voltage measurement error existing in the related art.
  • a voltage measuring method comprising: measuring voltages between electrodes of a battery cell by using two detection signal lines provided on a battery side connector, wherein the two detection signal lines are respectively Connected to the electrode lead end of the battery cell.
  • measuring the voltage between the electrodes of the battery cell by using the two detection signal lines disposed on the battery connector comprises: measuring the battery power by using a measurement electrode disposed on a motherboard-side connector a voltage between the electrodes of the core, wherein the measuring electrode provided on the main board side connector is in contact connection with the measuring electrode provided on the battery side connector, and the measuring electrode disposed on the battery side connector passes the two A root detection signal line is connected to the electrode lead end of the battery cell.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by at least one of: directly connected to an electrode lead end of the battery cell; using a protection circuit of the battery A circuit board is connected to the electrode lead ends of the battery cells.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by using the circuit board of the protection circuit, the two detection signal lines are respectively connected in series with a predetermined resistance value. resistance.
  • the method further includes: determining whether the measured voltage reaches a predetermined threshold; and if the determination result is negative The battery is charged in a constant current charging mode; and/or, in the case of a YES determination, the battery is charged in a constant voltage charging mode.
  • a voltage measuring apparatus comprising: a measuring module configured to measure a voltage between electrodes of a battery cell by using two detection signal lines provided on a battery side connector, wherein Two detection signal lines are respectively connected to the electrode lead ends of the battery cells.
  • the measuring module includes: measuring a voltage between electrodes of the battery cell by using a measuring electrode disposed on a motherboard-side connector, wherein the measuring electrode disposed on the motherboard-side connector and the battery side A measuring electrode contact connection provided on the connector, the measuring electrode provided on the battery side connector is connected to the electrode lead end of the battery cell through the two detecting signal wires.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by at least one of: directly connected to an electrode lead end of the battery cell; using a protection circuit of the battery A circuit board is connected to the electrode lead ends of the battery cells.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by using the circuit board of the protection circuit, the two detection signal lines are respectively connected in series with a predetermined resistance value. resistance.
  • the device further includes: a determining module, configured to determine whether the measured voltage reaches a predetermined threshold;
  • the charging module is configured to charge the battery by using a constant current charging mode if the determination result is negative; and/or, when the determination result is yes, charging the battery by using a constant voltage charging mode .
  • the voltage between the electrodes of the battery cells is measured by using two detection signal lines provided on the battery side connector, wherein the two detection signal wires are respectively connected to the electrode lead ends of the battery cells.
  • 1 is a schematic diagram of voltage measurement in the related art
  • FIG. 2 is a flow chart of a voltage measuring method according to an embodiment of the present invention.
  • FIG. 3 is a block diagram showing the structure of a voltage measuring device according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing a preferred structure of a voltage measuring device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a motherboard side connection according to an embodiment of the invention.
  • FIG. 6 is a schematic diagram 1 of a battery side connection according to an embodiment of the present invention.
  • Figure 7 is a perspective view of a cell lead according to an embodiment of the present invention.
  • Figure 8 is a second schematic view of a battery side connection in accordance with an embodiment of the present invention.
  • FIG. 2 is a flowchart of a voltage measurement method according to an embodiment of the present invention. As shown in FIG. 2, the flow includes the following steps:
  • Step S202 measuring voltages between electrodes of the battery cells by using two detection signal lines disposed on the battery side connector, wherein the two detection signal wires are respectively connected to the electrode lead ends of the battery cells.
  • the voltage between the electrodes of the battery cells is measured by the detection signal line connected to the battery cells, which can effectively avoid the influence of the additional resistance and obtain an accurate battery voltage, thereby solving the battery voltage measurement error existing in the related art.
  • the big problem in turn, achieves the effect of reducing battery voltage measurement error, improving measurement accuracy, and reducing charging time.
  • measuring the voltage between the electrodes of the battery cells by using the two detection signal lines disposed on the battery connector includes: measuring the electrodes between the electrodes of the battery cells by using the measuring electrodes disposed on the motherboard-side connector a voltage, wherein the measuring electrode provided on the main board side connector is in contact connection with the measuring electrode provided on the battery side connector, and the measuring electrode provided on the battery side connector is connected to the electrode of the battery cell through two detecting signal lines Lead end.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by at least one of: directly connected to the electrode lead end of the battery cell; and the circuit using the protection circuit of the battery
  • the board is connected to the electrode lead end of the battery cell.
  • the first connection mode that is, the manner in which the detection signal line is directly connected to the motor lead end of the battery cell without passing through other intermediate medium, is suitable for a terminal that does not frequently disassemble the battery, and the connection can be made by a person who manufactures the terminal Wiring connections are made when the terminal is manufactured.
  • the second connection method is suitable for the terminal that frequently disassembles the battery, and the connection method can effectively avoid the short circuit of the terminal battery cell.
  • the two detection signal lines when the two detection signal lines are connected to the electrode lead end of the battery cell by the circuit board of the protection circuit, the two detection signal lines may be respectively connected with a predetermined resistance value. resistance. The blocking of this resistor can be set according to the actual situation.
  • the method further includes: determining whether the measured voltage reaches a predetermined threshold; In the case of charging, the battery is charged in a constant current charging mode; and/or, in the case of a YES determination, the battery is charged in a constant voltage charging mode. Thereby reducing the charging time.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • a voltage measuring device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a block diagram showing the structure of a voltage measuring device according to an embodiment of the present invention. As shown in FIG. 3, the device includes a measuring module 32, which will be described below.
  • the measuring module 32 is configured to measure the voltage between the electrodes of the battery cells by using two detecting signal lines provided on the battery side connector, wherein the two detecting signal wires are respectively connected to the electrode lead ends of the battery cells.
  • the measuring module 32 includes: measuring a voltage between electrodes of the battery cell by using a measuring electrode disposed on the motherboard-side connector, wherein the measuring electrode disposed on the motherboard-side connector is disposed on the battery-side connector Measuring electrode contact connection, the measuring electrode provided on the battery side connector is connected to the electrode lead of the battery cell through two detecting signal wires end.
  • the two detection signal lines are connected to the electrode lead end of the battery cell by at least one of the following: directly connected to the electrode lead end of the battery cell; and the circuit board of the protection circuit of the battery is connected to the battery cell Electrode lead ends.
  • the two detection signal lines are connected to the electrode lead ends of the battery cells by the circuit board of the protection circuit, the two detection signal lines are respectively connected with resistors of predetermined resistance.
  • FIG. 4 is a block diagram showing a preferred structure of a voltage measuring device according to an embodiment of the present invention. As shown in FIG. 4, the device includes a determining module 42 and a charging module 44 in addition to all the modules shown in FIG. The device is described.
  • the determining module 42 is connected to the measuring module 32, and is configured to determine whether the measured voltage reaches a predetermined threshold.
  • the charging module 44 is connected to the determining module 42 and configured to adopt a constant current charging mode pair if the determination result is negative. The battery is charged; and/or, in the case where the determination result is YES, the battery is charged in a constant voltage charging mode.
  • FIG. 5 is a schematic diagram of a motherboard side connection according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a battery side connection according to an embodiment of the present invention.
  • the current mainstream battery interface has the following contact electrodes: the battery is positive (VBAT+ ), battery negative (VBAT-), battery temperature detection (NTC).
  • the solution in the embodiment of the present invention adds two detection signal lines Cell+ and Cell- based on the definition of the current battery connector interface. These two signals are taken from the electrode lead ends of the battery cells (4), respectively.
  • the voltage sampling point is set at the cell (4) by adding an interface definition. The thus sampled voltage eliminates the influence of the additional resistance of the current path, improves the sampling accuracy, and improves the accuracy of the fuel gauge and the accuracy of the charging control.
  • a specific interface definition and connection manner is provided.
  • two electrodes Cell+ and two electrodes are added to the battery side connector (3) and the motherboard side connector (7).
  • the two electrodes on the battery side are connected to the battery protection circuit board (2) through the battery lead (6), and then connected to the outlet end of the battery core (4) via the battery lead (5).
  • These two signals are only used for detection, no power transmission, no large current, so you can connect with thin wires or PCB traces.
  • the battery lead (5) generally adopts a metal piece.
  • the metal piece can be formed into the shape shown in FIG. 7, and FIG. 7 is a cell lead according to an embodiment of the present invention. shape.
  • the terminal (11) is soldered on the battery core, and the terminals (12) and (13) are soldered on the battery protection circuit board (2).
  • the positive and negative poles of the battery core can be respectively soldered as shown in FIG. Metal sheets.
  • Cell+ and Cell- are directly connected to the battery cell.
  • the Cell+ and Cell- signal lines are connected in series with a resistor, for example, on the protection circuit board (2). Connect 10k ⁇ resistors in series. Since the battery voltage sampling is voltage sampling, the sampling accuracy does not affect the sampling accuracy.
  • FIG. 8 is a schematic diagram of the battery side connection according to the embodiment of the present invention, wherein the battery side connector (3) The Cell+ and Cell-signal wires are directly connected to the lead terminals of the cells (4) without passing through the battery protection circuit (2).
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the voltage between the electrodes of the battery cells is measured by using two detection signal lines disposed on the battery side connector, wherein the two detection signal wires are respectively connected to the electrode lead ends of the battery cells.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the processor performs the above step S1 according to the stored program code in the storage medium.
  • the solution in the embodiment of the invention can improve the sampling precision of the battery voltage, can effectively improve the terminal power accuracy, can also improve the charging voltage precision, refine the charging control process, and further accelerate the terminal charging speed.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the voltage measurement method and apparatus provided by the embodiments of the present invention have the following beneficial effects: the problem of large battery voltage measurement error existing in the related art is solved, thereby reducing battery voltage measurement error and improving measurement accuracy. Reduce the effect of charging time.

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种电压测量方法及装置，其中，该方法包括：利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，该两根检测信号线分别连接至电池电芯的电极引线端（S202）。通过该方法解决了相关技术中存在的电池电压测量误差大的问题，进而达到了降低电池电压测量误差，提高测量精度，减少充电时间的效果。

Description

电压测量方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种电压测量方法及装置。
背景技术
当前终端均采用外置电池和内置电池。由于电池路径上不可避免地存在附加电阻，阻值约80-200mΩ。附加电阻主要包括：电芯引线电阻、电池保护电路内阻，电池引线电阻、电池侧连接器和主板侧连接器之间的接触电阻。这些附加电阻会导致电量计测量不准确，也会导致充电电压采样不准确。
图1是相关技术中的电压测量示意图，图1所示的为当前终端普遍采用的一种方案，将电池电压采样点设置在电池连接器(7)附近。该方案只可以减少主板(8)上印制电路板(Printed Circuit Board，简称为PCB)走线(14)的附加电阻的影响，不能消除上述电池侧的附件电阻以及电池连接器之间的接触电阻的影响。
如上所述，当前方案只是减少了主板(8)上PCB走线(14)的附加电阻影响，电池自身附加电阻以及电池连接器之间接触电阻的影响并没有消除，这些影响会导致电量计误差和充电控制误差。这些附加电阻主要包括：电芯引线电阻、电池保护电路内阻，电池引线电阻、电池侧连接器和主板侧连接器之间的接触电阻。
例如，附加电阻为100mΩ，放电电流值2A，这样电流路径上的附加电压降为0.2V。
对电量计的影响，假如电池电压为4.2V，但是2A放电时，实际采样到的电压值为4.2-0.2＝4.0V。电压是电量计算的一个关键参数，这样的电压偏差会导致电量偏差。
对充电控制的影响，充电过程分为涓流充电、恒流充电、恒压充电三个阶段。恒流充电电流最大，充电速度最快。恒流到恒压充电的判断标志就是电池电压达到一定阈值，超过这个阈值后充电流程就从恒流充电切换为恒压充电模式。
充电电流为2A时，电池充电回路附加电压降为0.2V。根据电池特性，4.2V为恒流充电到恒压充电切换阈值。但是，由于上述0.2V附加电压降，切换时电芯的真实电压为4.2-0.2＝4.0V,也就是说提前进入恒压充电，这样会导致充电电流减小，充电时间增加。
业界也有采用估算附加电阻而进行阻抗补偿的方法，但是实际电路差异较大，这些附加电阻无法直接测量，估算复杂而且也不准确。另外，由于估算不准确，为了电池安全起见，只能保守选用估算参数，使得补偿不够，不能消除上述附件电阻对电量计和充电的影响。
针对相关技术中存在的电池电压测量误差大的问题，目前尚未提出有效的解决方案。
发明内容
本发明提供了一种电压测量方法及装置，以至少解决相关技术中存在的电池电压测量误差大的问题。
根据本发明的一个方面，提供了一种电压测量方法，包括：利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，所述两根检测信号线分别连接至所述电池电芯的电极引线端。
可选地，利用电池连接器上设置的所述两根检测信号线测量所述电池电芯的所述电极间的所述电压包括：利用主板侧连接器上设置的测量电极测量所述电池电芯的电极间的电压，其中，所述主板侧连接器上设置的测量电极与所述电池侧连接器上设置的测量电极接触连接，所述电池侧连接器上设置的测量电极通过所述两根检测信号线连接至所述电池电芯的电极引线端。
可选地，所述两根检测信号线通过如下方式至少之一连接至所述电池电芯的所述电极引线端：直接连接至所述电池电芯的电极引线端；利用电池的保护电路的电路板连接至所述电池电芯的电极引线端。
可选地，当所述两根检测信号线为利用所述保护电路的电路板连接至所述电池电芯的电极引线端时，所述两根检测信号线上分别串接有预定阻值的电阻。
可选地，在利用电池连接器上设置的两根检测信号线测量电池电芯的电极间的电压之后，还包括：判断测量的所述电压是否达到预定阈值；在判断结果为否的情况下，采用恒流充电模式对所述电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对所述电池进行充电。
根据本发明的另一方面，提供了一种电压测量装置，包括：测量模块，设置为利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，所述两根检测信号线分别连接至所述电池电芯的电极引线端。
可选地，所述测量模块包括：利用主板侧连接器上设置的测量电极测量所述电池电芯的电极间的电压，其中，所述主板侧连接器上设置的测量电极与所述电池侧连接器上设置的测量电极接触连接，所述电池侧连接器上设置的测量电极通过所述两根检测信号线连接至所述电池电芯的电极引线端。
可选地，所述两根检测信号线通过如下方式至少之一连接至所述电池电芯的所述电极引线端：直接连接至所述电池电芯的电极引线端；利用电池的保护电路的电路板连接至所述电池电芯的电极引线端。
可选地，当所述两根检测信号线为利用所述保护电路的电路板连接至所述电池电芯的电极引线端时，所述两根检测信号线上分别串接有预定阻值的电阻。
可选地，所述装置还包括：判断模块，设置为判断测量的所述电压是否达到预定阈值； 充电模块，设置为在判断结果为否的情况下，采用恒流充电模式对所述电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对所述电池进行充电。
通过本发明，采用利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，所述两根检测信号线分别连接至所述电池电芯的电极引线端，解决了相关技术中存在的电池电压测量误差大的问题，进而达到了降低电池电压测量误差，提高测量精度，减少充电时间的效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是相关技术中的电压测量示意图；
图2是根据本发明实施例的电压测量方法的流程图；
图3是根据本发明实施例的电压测量装置的结构框图；
图4是根据本发明实施例的电压测量装置的优选结构框图；
图5是根据本发明实施例的主板侧连接示意图；
图6是根据本发明实施例的电池侧连接示意图一；
图7是根据本发明实施例的电芯引线外形；
图8是根据本发明实施例的电池侧连接示意图二。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种电压测量方法，图2是根据本发明实施例的电压测量方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，该两根检测信号线分别连接至电池电芯的电极引线端。
通过上述步骤，利用连接至电池电芯的检测信号线测量电池电芯的电极间的电压，能够有效避免附加电阻的影响，得到精确的电池电压，从而解决了相关技术中存在的电池电压测量误差大的问题，进而达到了降低电池电压测量误差，提高测量精度，减少充电时间的效果。
在一个可选的实施例中，利用电池连接器上设置的两根检测信号线测量电池电芯的电极间的电压包括：利用主板侧连接器上设置的测量电极测量电池电芯的电极间的电压，其中，该主板侧连接器上设置的测量电极与电池侧连接器上设置的测量电极接触连接，该电池侧连接器上设置的测量电极通过两根检测信号线连接至电池电芯的电极引线端。
在一个可选的实施例中，上述两根检测信号线通过如下方式至少之一连接至电池电芯的电极引线端：直接连接至该电池电芯的电极引线端；利用电池的保护电路的电路板连接至电池电芯的电极引线端。其中，第一种连接方式，即，检测信号线不经过其他中间媒介而直接连接至电池电芯的电机引线端的方式，适用于不经常拆卸电池的终端，该连接可以由制造该终端的人员在制造终端的时候进行布线连接。第二种连接方式，适用于经常拆卸电池的终端，采用该种连接方式可以有效避免终端电池电芯短路的出现。
在一个可选的实施例中，当上述两根检测信号线为利用保护电路的电路板连接至电池电芯的电极引线端时，该两根检测信号线上可以分别串接有预定阻值的电阻。该电阻的阻止可以根据实际情况进行设置。
在一个可选的实施例中，在利用电池连接器上设置的两根检测信号线测量电池电芯的电极间的电压之后，还包括：判断测量的电压是否达到预定阈值；在判断结果为否的情况下，采用恒流充电模式对电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对电池进行充电。从而减少充电时间。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种电压测量装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的电压测量装置的结构框图，如图3所示，该装置包括测量模块32，下面对该装置进行说明。
测量模块32，设置为利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，该两根检测信号线分别连接至电池电芯的电极引线端。
可选地，上述测量模块32包括：利用主板侧连接器上设置的测量电极测量电池电芯的电极间的电压，其中，该主板侧连接器上设置的测量电极与电池侧连接器上设置的测量电极接触连接，该电池侧连接器上设置的测量电极通过两根检测信号线连接至电池电芯的电极引线 端。
可选地，上述两根检测信号线通过如下方式至少之一连接至电池电芯的电极引线端：直接连接至电池电芯的电极引线端；利用电池的保护电路的电路板连接至电池电芯的电极引线端。
可选地，当两根检测信号线为利用保护电路的电路板连接至电池电芯的电极引线端时，该两根检测信号线上分别串接有预定阻值的电阻。
图4是根据本发明实施例的电压测量装置的优选结构框图，如图4所示，该装置除包括图3所示的所有模块外，还包括判断模块42和充电模块44，下面对该装置进行说明。
判断模块42，连接至上述测量模块32，设置为判断测量的电压是否达到预定阈值；充电模块44，连接至上述判断模块42，设置为在判断结果为否的情况下，采用恒流充电模式对电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对电池进行充电。
图5是根据本发明实施例的主板侧连接示意图，图6是根据本发明实施例的电池侧连接示意图一，如前述的图1所示，当前主流电池接口有以下接触电极：电池正(VBAT+)、电池负(VBAT-)、电池温度检测(NTC)。如图5和图6所示，本发明实施例中的方案在当前电池连接器接口定义的基础上，增加两根检测信号线Cell+和Cell-。这两个信号分别引自电池电芯(4)的电极引线端。通过增加接口定义，将电压采样点设置在电芯(4)处。这样采样到的电压就剔除了电流路径附加电阻的影响，提高了采样精度，也就能提高电量计精度和充电控制精度。
下面结合图5图6对本发明进行说明：
本发明实施例中提供了一种具体的接口定义和连接方式，如图5、图6所示，在电池侧连接器(3)和主板侧连接器(7)上增加了两个电极Cell+和Cell-。在电池侧这两个电极通过电池引线(6)连接到电池保护电路板(2)，再经过电芯引线(5)在电芯(4)的出线端连接。这两个信号只用作检测用，不用做功率传输，不通过大电流，所以可以用细的导线或PCB走线连接。
在具体实施时，电芯引线(5)一般采用金属片，为了实现从电芯端检测信号，可以将金属片做成图7所示的形状，图7是根据本发明实施例的电芯引线外形。接线端(11)焊接在电芯上，接线端(12)、(13)焊接在电池保护线路板(2)上，其中，在电芯的正负极可以分别焊接一个如图7所示的金属片。
在本发明实施例中，Cell+和Cell-直接接在电芯上，为了防止使用过程中电池连接器短路，Cell+和Cell-信号线上要串接电阻，例如可以在保护电路板(2)上边分别串接10kΩ电阻。由于电池电压采样是电压采样，串接电阻后不影响采样精度。
可选的，本发明实施例中的电池侧的连接还可以采用图8所示的方式，图8是根据本发明实施例的电池侧连接示意图二，其中，电池侧连接器(3)上的Cell+和Cell-信号线，不经过电池保护电路(2)直接接在电芯(4)的引线端上。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，该两根检测信号线分别连接至电池电芯的电极引线端。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行上述步骤S1。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
采用本发明实施例中的方案可以提高电池电压采样精度，可以有效提高终端电量精度，也可提高充电电压精度，细化充电控制流程，进一步加快终端充电速度。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种电压测量方法及装置具有以下有益效果：解决了相关技术中存在的电池电压测量误差大的问题，进而达到了降低电池电压测量误差，提高测量精度，减少充电时间的效果。

Claims (10)

  1. 一种电压测量方法，包括：
    利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，所述两根检测信号线分别连接至所述电池电芯的电极引线端。
  2. 根据权利要求1所述的方法，其中，利用电池连接器上设置的所述两根检测信号线测量所述电池电芯的所述电极间的所述电压包括：
    利用主板侧连接器上设置的测量电极测量所述电池电芯的电极间的电压，其中，所述主板侧连接器上设置的测量电极与所述电池侧连接器上设置的测量电极接触连接，所述电池侧连接器上设置的测量电极通过所述两根检测信号线连接至所述电池电芯的电极引线端。
  3. 根据权利要求1所述的方法，其中，所述两根检测信号线通过如下方式至少之一连接至所述电池电芯的所述电极引线端：
    直接连接至所述电池电芯的电极引线端；
    利用电池的保护电路的电路板连接至所述电池电芯的电极引线端。
  4. 根据权利要求3所述的方法，其中，当所述两根检测信号线为利用所述保护电路的电路板连接至所述电池电芯的电极引线端时，所述两根检测信号线上分别串接有预定阻值的电阻。
  5. 根据权利要求1所述的方法，其中，在利用电池连接器上设置的两根检测信号线测量电池电芯的电极间的电压之后，还包括：
    判断测量的所述电压是否达到预定阈值；
    在判断结果为否的情况下，采用恒流充电模式对所述电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对所述电池进行充电。
  6. 一种电压测量装置，包括：
    测量模块，设置为利用电池侧连接器上设置的两根检测信号线测量电池电芯的电极间的电压，其中，所述两根检测信号线分别连接至所述电池电芯的电极引线端。
  7. 根据权利要求6所述的装置，其中，所述测量模块包括：
    利用主板侧连接器上设置的测量电极测量所述电池电芯的电极间的电压，其中，所述主板侧连接器上设置的测量电极与所述电池侧连接器上设置的测量电极接触连接，所述电池侧连接器上设置的测量电极通过所述两根检测信号线连接至所述电池电芯的电极引线端。
  8. 根据权利要求6所述的装置，其中，所述两根检测信号线通过如下方式至少之一连接至所述电池电芯的所述电极引线端：
    直接连接至所述电池电芯的电极引线端；
    利用电池的保护电路的电路板连接至所述电池电芯的电极引线端。
  9. 根据权利要求8所述的装置，其中，当所述两根检测信号线为利用所述保护电路的电路板连接至所述电池电芯的电极引线端时，所述两根检测信号线上分别串接有预定阻值的电阻。
  10. 根据权利要求6所述的装置，其中，还包括：
    判断模块，设置为判断测量的所述电压是否达到预定阈值；
    充电模块，设置为在判断结果为否的情况下，采用恒流充电模式对所述电池进行充电；和/或，在判断结果为是的情况下，采用恒压充电模式对所述电池进行充电。
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CN109245225A (zh) * 2018-10-22 2019-01-18 Oppo广东移动通信有限公司 电子设备及其充电控制装置和方法
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201663216U (zh) * 2009-12-25 2010-12-01 宇龙计算机通信科技(深圳)有限公司 一种具有自检功能的电池
CN102208696A (zh) * 2011-04-28 2011-10-05 常州格力博工具有限公司 一种大容量锂电池包
CN203377624U (zh) * 2013-06-26 2014-01-01 徐秋玲 通信用磷酸铁锂电池远程通信告警设备
CN103529276A (zh) * 2013-10-28 2014-01-22 无锡中星微电子有限公司 电流检测电路及充电电池
CN104145190A (zh) * 2012-02-29 2014-11-12 Nec能源元器件株式会社 电池组和用于计算电池组的电能的方法
CN104459544A (zh) * 2013-09-12 2015-03-25 中兴通讯股份有限公司 一种检测电池容量的装置、方法及电池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201663216U (zh) * 2009-12-25 2010-12-01 宇龙计算机通信科技(深圳)有限公司 一种具有自检功能的电池
CN102208696A (zh) * 2011-04-28 2011-10-05 常州格力博工具有限公司 一种大容量锂电池包
CN104145190A (zh) * 2012-02-29 2014-11-12 Nec能源元器件株式会社 电池组和用于计算电池组的电能的方法
CN203377624U (zh) * 2013-06-26 2014-01-01 徐秋玲 通信用磷酸铁锂电池远程通信告警设备
CN104459544A (zh) * 2013-09-12 2015-03-25 中兴通讯股份有限公司 一种检测电池容量的装置、方法及电池
CN103529276A (zh) * 2013-10-28 2014-01-22 无锡中星微电子有限公司 电流检测电路及充电电池

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