Battery management method and device and battery assembly

Abstract

The application discloses a battery management method and device and a battery assembly, and belongs to the technical field of communication. The battery assembly comprises a battery module, a power management chip and a switch module. The battery module comprises a battery body and a power gauge module. The power management chip is used for detecting the output voltage of the battery body. The power gauge module comprises a first port and a second port. The first port is electrically connected with the power management chip. The second port is electrically connected with the switch module. In the case that the power management chip detects that the output voltage of the battery body is less than a preset voltage, a control signal is output to the switch module through the second port of the power gauge module, so that the switch module is in a first conduction state, and the conduction connection between the battery body and an external system power supply is maintained.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a battery management method, device and battery assembly. Background Technology

[0002] In related technologies, silicon batteries have a higher energy density than graphite batteries. In the same volume, silicon batteries can contain more energy, giving mobile phones and other electronic devices better battery life. However, because silicon batteries have a higher electrochemical impedance spectroscopy than graphite batteries (meaning a larger impedance voltage drop), when mobile phones and other electronic devices are running with low battery power, the voltage drop caused by the battery's internal resistance will lower the system voltage. This results in a transient voltage that is much lower than the system's shutdown voltage, making the electronic device prone to blackouts and power outages.

[0003] It is evident that the battery solutions in the relevant technologies suffer from poor stability. Summary of the Invention

[0004] The purpose of this application is to provide a battery management method, device, and battery assembly that can solve the problem of poor stability in battery solutions in related technologies.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a battery assembly, including a battery module, a power management chip, and a switching module. The battery module includes a battery body and a fuel gauge module. The power management chip is used to detect the output voltage of the battery body. The fuel gauge module includes a first port and a second port. The first port is electrically connected to the power management chip, and the second port is electrically connected to the switching module.

[0007] When the power management chip detects that the output voltage of the battery body is less than the preset voltage, it outputs a control signal to the switch module through the second port of the fuel gauge module to put the switch module into a first conduction state and maintain the conduction connection between the battery body and the external system power supply.

[0008] Secondly, embodiments of this application provide an electronic device including the battery assembly described in the first aspect.

[0009] Thirdly, embodiments of this application provide a battery management method applied to a battery assembly, the battery assembly comprising:

[0010] A battery module, comprising a battery body and a fuel gauge module;

[0011] A power management chip, wherein the power management chip is used to detect the output voltage of the battery body;

[0012] Switching module;

[0013] The power meter module includes a first port and a second port, the first port being electrically connected to the power management chip and the second port being electrically connected to the switch module.

[0014] The method includes:

[0015] Obtain the output voltage of the battery body;

[0016] When the output voltage is less than the preset voltage, the control switch module is in the first conducting state;

[0017] In the first conducting state, the battery body is maintained in a conductive connection with the external system power supply.

[0018] Fourthly, embodiments of this application provide a battery management device applied to a battery assembly, the battery assembly comprising:

[0019] A battery module, comprising a battery body and a fuel gauge module;

[0020] A power management chip, wherein the power management chip is used to detect the output voltage of the battery body;

[0021] Switching module;

[0022] The power meter module includes a first port and a second port, the first port being electrically connected to the power management chip and the second port being electrically connected to the switch module.

[0023] The device includes:

[0024] The acquisition module is used to acquire the output voltage of the battery body;

[0025] The first control module is used to control the switch module to be in a first conducting state when the output voltage is less than the preset voltage.

[0026] In the first conducting state, the battery body is maintained in a conductive connection with the external system power supply.

[0027] Fifthly, embodiments of this application provide an electronic device including a processor and a memory, wherein the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method described in the third aspect.

[0028] In a sixth aspect, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the third aspect.

[0029] In a seventh aspect, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method described in the third aspect.

[0030] Eighthly, embodiments of this application provide a computer program product including computer instructions that, when executed by a processor, implement the method described in the third aspect.

[0031] In this embodiment, when the power management chip detects that the output voltage of the battery body is less than the preset voltage, it can output a control signal to the switching module through the second port of the fuel gauge module to put the switching module in the first conduction state and maintain the conduction connection between the battery body and the external system power supply, that is, control the battery body to continue to output power. This can reduce the power loss problem caused by the sudden drop in transient voltage due to abnormal conditions such as the operation of heavy-load applications, improve the power supply capability of the battery module, and enhance the power supply stability of the battery module. Attached Figure Description

[0032] Figure 1 This is one of the circuit diagrams of the battery assembly provided in the embodiments of this application;

[0033] Figure 2 for Figure 1 The circuit diagram of the battery module shown;

[0034] Figure 3 for Figure 1 The circuit diagram of the voltage comparator circuit of the power management chip shown is shown.

[0035] Figure 4 for Figure 1 The circuit diagram of the switch module shown;

[0036] Figure 5 This is the second circuit diagram of the battery assembly provided in the embodiments of this application;

[0037] Figure 6 for Figure 5 The circuit diagram of the switch module shown;

[0038] Figure 7 This is a flowchart of the battery management method provided in the embodiments of this application;

[0039] Figure 8 This is a structural diagram of the battery management device provided in the embodiments of this application;

[0040] Figure 9 This is one of the structural diagrams of the electronic device provided in the embodiments of this application;

[0041] Figure 10 This is the second structural diagram of the electronic device provided in the embodiments of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] like Figures 1 to 6 As shown in the figure, this application embodiment provides a battery assembly, which includes: a battery module 10, a power management chip 20, and a switch module 30.

[0045] The aforementioned battery module 10 includes a battery body 11 and a fuel gauge module 12. The battery body 11 can be understood as the energy storage structure of the battery module 10, and the fuel gauge module 12 can be understood as a metering module that measures the remaining power of the battery body 11.

[0046] In some embodiments, the power meter module 12 can detect the instantaneous current inside the battery module 10, and can calculate the remaining power of the battery body 11 based on the detected instantaneous current through coulomb integration.

[0047] In some embodiments, the remaining charge of the battery body 11 can be characterized by percentages such as 0%, 1%, 3%, 5%, 100%.

[0048] For mobile phones and other electronic devices that include the aforementioned battery components, when the remaining power of the battery body 11 drops to 0%, it can be determined that the battery body 11 can no longer supply power to the display screen and other functional modules of the mobile phone and other electronic devices. At this time, the power management chip 20 of the battery component can interrupt the connection between the battery body 11 and the external system power supply, that is, interrupt the power supply of the battery body 11 to the display screen and other functional modules of the electronic device, that is, interrupt the power output of the battery body 11 to the display screen and other functional modules of the electronic device.

[0049] In some embodiments, the aforementioned external system power supply can be understood as the power supply used to power the entire system in electronic devices such as mobile phones and laptops. The aforementioned battery body 11 can be understood as the energy storage battery of electronic devices such as mobile phones and laptops, and can supply power to the system power supply of these devices. Furthermore, the system power supply connected to the battery body 11 can supply power to functional modules of the electronic device such as the display screen, camera, and flash, enabling the electronic device to perform display, shooting, and other functions.

[0050] In some embodiments, the external system power supply can be integrated into the power management chip 20. That is, the external system power supply can be understood as a functional module in the power management chip 20, which is used to control the battery body 11 to supply power to the functional modules such as the display screen of the electronic device, or to interrupt the power supply of the battery body 11 to the functional modules such as the display screen of the electronic device.

[0051] Specifically, while maintaining the conductive connection between the battery body 11 and the external system power supply, the battery body 11 can continuously supply power to the functional modules of the electronic device, such as the display screen; when the conductive connection between the battery body 11 and the external system power supply is interrupted, the battery body 11 can interrupt the power supply to the functional modules of the electronic device, such as the display screen.

[0052] It is understandable that triggering the interruption of the connection between the battery body 11 and the external system power supply can also trigger the shutdown process of mobile phones and other electronic devices, so as to reduce the impact of power outage on the user experience of mobile phones and other electronic devices.

[0053] In some embodiments, before triggering the shutdown process of electronic devices such as mobile phones, a prompt message can be output to remind the user that the electronic device is about to lose power, so that the user has enough time to handle the currently performed operation and reduce the impact of the electronic device power failure on the user.

[0054] In some embodiments, the battery module 10 further includes a protection chip 13, which is used to protect the battery module 10 and can mitigate the impact of external voltage instability and other factors on the battery module 10.

[0055] In some embodiments, the battery module 10 further includes a battery connector 14, which serves as a connection interface between the battery module 10 and other external functional devices. For example, the battery module 10 can be electrically connected to the power management chip 20 through the battery connector 14.

[0056] The power management chip 20 also includes a voltage comparison circuit, which can compare the output voltage of the battery body 11 with a reference voltage and control the conduction state of the battery body 11 and the external system power supply based on the comparison result, so as to maintain the conduction connection between the battery body 11 and the external system power supply, or disconnect the conduction connection between the battery body 11 and the external system power supply.

[0057] In some embodiments, the output of the voltage comparison circuit can be electrically connected to the control terminal of a conduction switch used to enable the battery body 11 to conduct to an external system power supply, so that the conduction switch can switch the state of the conduction switch based on the comparison result of the output of the voltage comparison circuit, such as making the conduction switch in a conducting state or an open state.

[0058] It is understandable that when the switch is in the ON state, the electrical connection between the battery body 11 and the external system power supply is in the ON state; when the switch is in the OFF state, the electrical connection between the battery body 11 and the external system power supply is in the OFF state.

[0059] In some embodiments, such as Figure 3 As shown, the voltage comparison circuit of the power management chip 20 includes a power supply voltage input terminal 21, a reference voltage input terminal 22, a comparator 23, and an output terminal 24. The power supply voltage input terminal 21 can be connected to the voltage output terminal of the battery module 10, and the reference voltage input terminal 22 can be connected to the reference voltage output terminal. The comparator 23 is used to compare the voltage signal output from the voltage output terminal of the battery module 10 with the reference voltage signal output from the reference voltage output terminal, and obtain the corresponding comparison result. The obtained comparison result can be output through the output terminal 24 to the control terminal of the conduction switch used to realize the conduction connection between the battery body 11 and the external system power supply, so as to control the conduction switch to be in the conduction state or the open state.

[0060] The first input terminal of comparator 23 is connected to the power supply voltage input terminal 21, the second input terminal of comparator 23 is electrically connected to the reference voltage input terminal 22, and the input terminal of comparator 23 is electrically connected to the output terminal 24.

[0061] In some embodiments, apart from the detection circuit for detecting the instantaneous current inside the battery module 10, the fuel gauge module 12 also includes a first port 121 and a second port 122. The first port 121 is electrically connected to the power management chip 20, and the second port 122 is electrically connected to the switch module 30.

[0062] In a conventional battery management scheme, when the comparison result output by comparator 23 indicates that the voltage signal output by the voltage output terminal of battery module 10 is less than the reference voltage signal output by the reference voltage output terminal, the power management chip 20 will output a power-off signal to control the battery body 11 to interrupt the power supply to the display and other functional modules of the electronic device. However, the fact that the voltage signal output by the voltage output terminal of battery module 10 is less than the reference voltage signal output by the reference voltage output terminal does not necessarily mean that the remaining power of the battery body 11 has been exhausted. It may also be due to abnormal conditions such as heavy-load application operation that cause the current transient voltage to be less than the reference voltage output by the reference voltage output terminal.

[0063] Therefore, in response to this situation, where the power management chip 20 detects that the output voltage of the battery body 11 is less than the preset voltage, a control signal can be output to the switching module 30 through the second port 122 of the fuel gauge module 12 to put the switching module 30 into the first conduction state and maintain the conduction connection between the battery body 11 and the external system power supply, so that the battery body 11 can continue to output power. This can reduce the power loss problem caused by the sudden drop in transient voltage due to abnormal conditions such as heavy-load application operation, improve the power supply capability of the battery pack, and enhance the power supply stability of the battery pack.

[0064] The aforementioned switch module 30 is in the first conducting state, which can be understood as adjusting the conducting state of the switch module 30 to change the power-off signal that the power management chip 20 was originally going to output to a power-hold signal; or making the voltage signal received by the power voltage input terminal 21 of the power management chip 20 a reference voltage signal output by the output terminal that is greater than the reference voltage, so as to avoid the power management chip 20 outputting a power-off signal, thereby achieving the purpose of improving the stability of the battery assembly.

[0065] The aforementioned power off signal is used to indicate the interruption of the conductive connection between the battery body 11 and the external system power supply; the aforementioned power hold signal is used to indicate the maintenance of the conductive connection between the battery body 11 and the external system power supply.

[0066] In some embodiments, such as Figure 4 As shown, the switch module 30 includes a first control terminal 311, a first input terminal 312, a second input terminal 313, a first output terminal 314, and a first capacitor 315. The first control terminal 311 is electrically connected to the second port 122. The first input terminal 312 is electrically connected to the voltage output terminal of the battery assembly. The first output terminal 314 is electrically connected to the power voltage input terminal 21 of the power management chip 20. The second input terminal 313 is electrically connected to the first terminal of the first capacitor 315, and the second terminal of the first capacitor 315 is grounded.

[0067] The first input terminal 312 and the first output terminal 314 can form a first conduction path of the switch module 30, and the second input terminal 313 and the first output terminal 314 can form a second conduction path of the switch module 30. At least one of the first and second conduction paths of the switch module 30 is in a conducting state, that is, the switch module 30 can switch between three conduction states: the first conduction state, the second conduction state, and the third conduction state. In other words, the first control terminal 311 can output a control signal based on the second port 122 of the fuel meter module 12 to control the switch module 30 to switch between the three conduction states: the first conduction state, the second conduction state, and the third conduction state.

[0068] When the switch module 30 is in the first conducting state, the first input terminal 312 and the first output terminal 314 are disconnected, and the second input terminal 313 and the first output terminal 314 are conducting. At this time, the power supply voltage input terminal 21 of the power management chip 20 cannot be electrically connected to the voltage output terminal of the battery component through the first conducting path, but can only be electrically connected to the first capacitor 315 through the second conducting path. That is, the first capacitor 315 can supply power to the power management chip 20.

[0069] When the switch module 30 is in the second conduction state, the first input terminal 312 and the first output terminal 314 are connected, and the second input terminal 313 and the first output terminal 314 are connected. At this time, since both the first conduction path and the second conduction path are in the conduction state, not only is the power supply voltage input terminal 21 of the power management chip 20 connected to the voltage output terminal of the battery module, but also the first capacitor 315 is connected to the voltage output terminal of the battery module. That is, the first capacitor 315 is equivalently mounted on the voltage output terminal of the battery module, and the electrical signal output by the battery module can charge the first capacitor 315.

[0070] When the switch module 30 is in the third conduction state, the first input terminal 312 and the first output terminal 314 are connected, and the second input terminal 313 and the first output terminal 314 are disconnected. At this time, since the first conduction path is in the conduction state, that is, the power supply voltage input terminal 21 of the power management chip 20 is electrically connected to the voltage output terminal of the battery module, the power management chip 20 can detect the output voltage of the battery module. Since the second conduction path is in the disconnection state, the first capacitor 315 is equivalent to an isolated static small battery and cannot discharge to the outside. Moreover, the voltage of the first capacitor 315 is equal to the output voltage of the battery module when both the first conduction path and the second conduction path are in the conduction state.

[0071] In some embodiments, the first capacitor 315 can be a capacitor in the tens of uF range.

[0072] In some embodiments, when the power management chip 20 detects that the output voltage of the battery body 11 is less than a preset voltage, it controls the switch module 30 to be in a first conducting state so as to supply power to the power management chip 20 through the first capacitor 315 and cause the power management chip 20 to output a control signal to indicate maintaining the conducting connection between the battery body 11 and the external system power supply.

[0073] In this embodiment, when the power management chip 20 detects that the output voltage of the battery body 11 is less than the preset voltage, it controls the switch module 30 to be in the first conducting state so as to supply power to the power voltage input terminal 21 of the power management chip 20 through the first capacitor 315. That is, the output voltage of the battery component when both the first conducting path and the second conducting path of the switch module 30 are in the conducting state is taken as the output voltage of the battery component at this time. Compared with directly using the transient power generated by the battery component due to heavy-load application as the output voltage of the battery component, the impact of the sudden drop in transient voltage caused by abnormal conditions such as heavy-load application operation on the power supply stability of the battery component can be reduced.

[0074] In some embodiments, such as Figure 3 As shown, the power management chip 20 also includes a parasitic resistor 25, one end of which is electrically connected to the power supply voltage input terminal 21, and the other end is grounded;

[0075] When the switch module 30 is in the first conducting state, that is, when the first conducting path of the switch module 30 is open and the second conducting path is open, the first capacitor 315 will only supply charge to the power supply voltage input terminal 21 of the power management chip 20. Since the parasitic resistance 25 is generally in the tens of KΩ range, when the first capacitor 315 discharges to the power supply voltage input terminal 21 of the power management chip 20, the energy stored in the first capacitor 315 will be equivalently consumed in the parasitic resistance 25.

[0076] Specifically, the discharge time τ = RC of the first capacitor 315 is as the voltage on the first capacitor 315 gradually decreases. For example, the relationship between the voltage U1 at a certain moment t1 and the initial voltage U0 of the first capacitor 315 before discharge can be calculated by the formula U1 = U0 * exp(-t / RC). That is, the voltage U1 is inversely proportional to the product of RC. In other words, as long as the capacitance of the first capacitor 315 is increased, the voltage on the first capacitor 315 will be maintained for a longer time.

[0077] In one embodiment, for an electronic device such as a mobile phone that includes the above-mentioned battery component, if the battery body of the battery component is a single-cell battery, and the power-off voltage of the electronic device is set to 3.0V, and since the power management chip 20's shutdown voltage is less than the power-off voltage, the power management chip 20's shutdown voltage can be set to 2.4V.

[0078] The aforementioned preset voltage can be understood as a voltage value greater than the power-off voltage of the electronic device. For example, if the power-off voltage is 3.0V, the preset voltage can be set to 3.2V.

[0079] The aforementioned preset voltage can be determined based on empirical values ​​and transient voltages caused by heavy-load applications.

[0080] Furthermore, when the power meter module 12 detects that the remaining power of the battery body 11 is 0% and the voltage of the battery body 11 drops to 3.0V, it triggers the automatic shutdown process of the electronic device.

[0081] When the battery body 11 has sufficient power, the first conduction path and the second conduction path of the switching module 30 can be controlled to be turned on, so that the first capacitor 315 is equivalently connected to the voltage output terminal of the battery assembly and plays a certain role in voltage stabilization.

[0082] In some embodiments, when the output voltage of the battery body detected by the power management chip 20 is greater than or equal to 3.2V, the fuel gauge module 12 can be controlled to detect the remaining power of the battery body 11 at a first time interval, such as at a time interval of 1 second, so as to reduce the power consumption required for the fuel gauge module 12 to detect the remaining power.

[0083] When the electronic device is running a heavy-load application and the output voltage of the battery body detected by the power management chip 20 is less than the preset voltage, that is, when the output voltage of the battery body detected by the power management chip 20 is less than 3.2V, the power meter module 12 can be controlled to detect the remaining power of the battery body 11 at a second time interval, such as at a time interval of 1 millisecond.

[0084] Simultaneously, the on-time (Tleft) and off-time (Toff) of the battery assembly can be calculated and compared. The on-time (Tleft) is the time required for the battery body 11 to discharge from the current voltage to the off-voltage, and the off-time (Toff) is the time required for the first capacitor 315 to discharge to the off-voltage. Furthermore, when the on-time (Tleft) is less than the off-time (Toff), the switching module 30 can be controlled to be in a first on state, i.e., power is supplied to the power management chip 20's power voltage input terminal 21 through the first capacitor 315, thereby extending the battery assembly's runtime.

[0085] Furthermore, after switching the switch module 30 from the second conduction state to the first conduction state, the fuel gauge module 12 can be controlled to detect the remaining power of the battery body 11 at a first time interval, such as at a time interval of 1 second, so as to reduce the power consumption required for the fuel gauge module 12 to detect the remaining power.

[0086] When the power meter module 12 detects that the remaining power of the battery body 11 is 0%, the electronic device can display a pop-up window to alert the user when the battery is low and quickly switch to power-saving mode, closing high-load background applications. Simultaneously, the switch module 30 can switch to the second conduction state, and once the voltage of the battery body 11 drops to 3.0V, it will proceed with the normal shutdown process. This setting reduces the likelihood of triggering transient low-voltage shutdown scenarios and limits the operation of high-load applications, thus improving the power supply stability of the battery assembly.

[0087] In some embodiments, such as Figure 5 and Figure 6 As shown, the switch module 30 includes a second control terminal 321, a third input terminal 322, a fourth input terminal 323, a second output terminal 324, a third output terminal 325, and an inverter 326. The second control terminal 321 is electrically connected to the second port 122, the third input terminal 322 is electrically connected to the voltage output terminal of the battery assembly, the fourth input terminal 323 is grounded through the first resistor 327, the third output terminal 325 is electrically connected to the first terminal of the inverter 326, and the second output terminal 324 and the second terminal of the inverter 326 both output control signals to indicate the conduction state of the battery body 11 and the external system power supply.

[0088] The third input terminal 322 and the second output terminal 324 can form the third conduction path of the switch module 30, and the fourth input terminal 323 and the third output terminal 325 can form the fourth conduction path of the switch module 30, so that the switch module 30 can switch between the first conduction state and the fourth conduction state. That is, the second control terminal 321 can output a control signal based on the second port 122 of the fuel meter module 12 to control the switch module 30 to switch between the first conduction state and the fourth conduction state.

[0089] When the switch module 30 is in the first conducting state, the third input terminal 322 is disconnected from the second output terminal 324, and the fourth input terminal 323 is connected to the third output terminal 325.

[0090] When the switch module 30 is in the fourth conducting state, the third input terminal 322 is connected to the second output terminal 324, and the fourth input terminal 323 is disconnected from the third output terminal 325.

[0091] In this embodiment, the output terminal 24 of the power management chip 20 is electrically connected to the first port 121 of the fuel gauge module 12. That is, the power off signal or power hold signal output by the output terminal 24 of the power management chip 20 will be sent to the fuel gauge module 12 so that the fuel gauge module 12 outputs a control signal to the switch module 30 based on the power off signal or power hold signal output by the power management chip 20, so that the switch module 30 is in the first conduction state or the fourth conduction state.

[0092] The aforementioned power off signal is used to indicate the interruption of the conductive connection between the battery body 11 and the external system power supply; the aforementioned power hold signal is used to indicate the maintenance of the conductive connection between the battery body 11 and the external system power supply.

[0093] Furthermore, since the power off signal or power hold signal output by the output terminal 24 of the voltage comparison circuit of the power management chip 20 no longer directly controls the above-mentioned conduction switch to be in the conduction state or the off state, but the switch module 30 outputs the corresponding power off signal or power hold signal based on the control signal output by the fuel gauge module 12, thereby controlling the above-mentioned conduction switch to be in the conduction state or the off state. That is, by adjusting the conduction state of the switch module 30, the switching control of the conduction connection between the battery body 11 and the external system power supply can be realized.

[0094] Specifically, when the first port 121 of the fuel gauge module 12 receives the power hold signal output from the output terminal 24 of the power management chip 20, the fuel gauge module 12 can output a first control signal to the switch module 30 to put the switch module 30 into a fourth conduction state and enable the switch module 30 to output a power hold signal based on the third conduction path, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0095] Accordingly, when the first port 121 of the fuel gauge module 12 receives the power off signal output from the output terminal 24 of the power management chip 20, the fuel gauge module 12 can output a second control signal to the switch module 30 to put the switch module 30 into a first conduction state and enable the switch module 30 to output a power off signal based on the fourth conduction path. The power off signal output from the fourth conduction path is processed by the inverter 326 and can be converted into a power holding signal, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0096] In some embodiments, such as Figure 6As shown, the switch module 30 also includes a second resistor 328 and a third resistor 329. The first end of the second resistor 328 is electrically connected to the voltage output terminal of the battery assembly, the second end of the second resistor 328 is electrically connected to the first end of the third resistor 329, the second end of the third resistor 329 is grounded, and the third input terminal 322 is electrically connected to the second end of the second resistor 328.

[0097] In some embodiments, the output terminal 24 of the power management chip 20 can output a power hold signal by outputting a high level, and output a power off signal by outputting a low level.

[0098] By electrically connecting the third input terminal 322 to the second terminal of the second resistor 328, when the switch module 30 is in the fourth conduction state, the third input terminal 322, which is electrically connected to the second terminal of the second resistor 328, is equivalent to being connected to a high level. That is, the switch module 30 can output a high level to realize the output of the power supply hold signal, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0099] Correspondingly, since the fourth input terminal 323 is grounded through the first resistor 327, it is equivalent to the fourth input terminal 323 being connected to a low level. Therefore, when the switch module 30 is in the fourth conduction state, the first terminal of the inverter 326 is equivalent to being connected to a low level. After the low level is processed by the inverter 326, it will be converted to a high level. That is, at this time, the switch module 30 can still output a high level to realize the output of the power holding signal, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0100] In one embodiment, for an electronic device such as a mobile phone that includes the above-mentioned battery component, if the battery body of the battery component is a single-cell battery and the power-off voltage of the electronic device is 3.0V, the power-off voltage of the power management chip 20 is less than the power-off voltage, such as setting the power management chip 20 to 2.4V.

[0101] In some embodiments, the preset voltage can be understood as a voltage value greater than the power-off voltage of the electronic device. For example, if the power-off voltage is 3.0V, the preset voltage can be set to 3.2V.

[0102] In some embodiments, the preset voltage can be understood as the shutdown voltage, such as a preset voltage that can be set to 2.4V.

[0103] In some embodiments, when the output voltage of the battery body detected by the power management chip 20 is greater than or equal to 3.2V, the output terminal 24 of the power management chip 20 can output a high-level signal to the first port 121 of the fuel gauge module 12. The fuel gauge module 12 can output a first control signal to the switch module 30 based on the high-level signal output by the output terminal 24 of the power management chip 20, so that the switch module 30 is in the fourth conduction state and the switch module 30 can output a power holding signal based on the third conduction path, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0104] In some embodiments, when the output voltage of the battery body detected by the power management chip 20 is greater than or equal to 3.2V, the output terminal 24 of the power management chip 20 can output a high-level signal to the first port 121 of the fuel gauge module 12. That is, when the fuel gauge module 12 receives the high-level signal output by the output terminal 24 of the power management chip 20, it can control the fuel gauge module 12 to detect the remaining power of the battery body 11 at a first time interval, such as at a time interval of 1 second, so as to reduce the power consumption required for the fuel gauge module 12 to detect the remaining power.

[0105] If the output voltage of the battery body detected by the power management chip 20 is less than the preset voltage, the power meter module 12 can be controlled to detect the remaining power of the battery body 11 at a second time interval, such as at a time interval of 1 millisecond.

[0106] By reducing the detection cycle of the remaining charge of the battery body 11 by the power meter module 12, the risk of low-voltage shutdown of the battery assembly can be reduced.

[0107] When the electronic device is running a heavy-load application and the output voltage of the battery body detected by the power management chip 20 is less than the shutdown voltage, the output terminal 24 of the power management chip 20 can output a low-level signal to the first port 121 of the fuel gauge module 12. That is, when the fuel gauge module 12 receives the low-level signal output by the output terminal 24 of the power management chip 20, the fuel gauge module 12 can output a second control signal to the switch module 30 based on the low-level signal output by the output terminal 24 of the power management chip 20, so that the switch module 30 is in the first conduction state and the switch module 30 can output a power-off signal based on the fourth conduction path. The power-off signal output by the fourth conduction path is processed by the inverter 326 and can be converted into a power holding signal, thereby maintaining the conduction connection between the battery body 11 and the external system power supply and ensuring that transient voltage load will not affect the power supply effect of the battery pack.

[0108] In some embodiments, when the fuel gauge module 12 detects that the load has switched to a light load and the output voltage of the battery body 11 has returned to a safe range, the fuel gauge module 12 controls the switch module 30 to be in the fourth conduction state until the voltage and charge of the battery body 11 reach the shutdown condition, then controls the electronic device to enter the power saving mode and triggers the normal shutdown process.

[0109] In some embodiments, the battery body 11 may be a battery made of silicon material.

[0110] In this application, when the power management chip 20 detects that the output voltage of the battery body 11 is less than the preset voltage, it can output a control signal to the switch module 30 through the second port 122 of the fuel gauge module 12 to put the switch module 30 into the first conduction state and maintain the conduction connection between the battery body 11 and the external system power supply, that is, control the battery body 11 to continue to output power. This can reduce the power loss problem caused by the sudden drop in transient voltage due to abnormal conditions such as heavy-load application operation, improve the power supply capability of the battery module, and enhance the power supply stability of the battery module.

[0111] This application also provides an electronic device including the battery assembly described above.

[0112] It should be noted that the implementation method of the above-described battery component embodiment is also applicable to the embodiment of the electronic device and can achieve the same technical effect, so it will not be described again here.

[0113] In some embodiments, the power management chip 20 and the switching module 30 described above may be mounted on the motherboard of the electronic device.

[0114] Among them, the aforementioned electronic devices may be mobile phones, tablets, laptops, handheld computers, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), etc.

[0115] See Figure 7 , Figure 7 This is a flowchart of a battery management method provided in an embodiment of this application; this battery management method can be applied to the aforementioned battery component, and also to electronic devices such as mobile phones that include the aforementioned battery component, such as... Figure 7 As shown, the battery management method includes the following steps:

[0116] Step 701: Obtain the output voltage of the battery body.

[0117] Step 702: When the output voltage is less than the preset voltage, control the switch module to be in the first conducting state.

[0118] In the first conducting state, the battery body is maintained in a conductive connection with the external system power supply.

[0119] In this embodiment, by acquiring the output voltage of the battery body and controlling the switch module to be in the first conduction state when the output voltage is less than the preset voltage, the battery body is kept connected to the external system power supply, that is, the battery body continues to output power. This can reduce the power loss problem caused by the sudden drop in transient voltage due to abnormal conditions such as heavy-load application operation, improve the power supply capability of the battery module, and enhance the power supply stability of the battery module.

[0120] In some embodiments, after obtaining the output voltage of the battery body, the method further includes:

[0121] When the output voltage is greater than or equal to the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a first time interval.

[0122] or,

[0123] When the output voltage is less than the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a second time interval.

[0124] The second time interval is shorter than the first time interval.

[0125] In this embodiment, by setting the second time interval to be less than the first time interval, not only can the power consumption required for the fuel gauge module to detect the remaining power be reduced, but the risk of low-voltage shutdown of the battery assembly can also be reduced.

[0126] The battery management method of this application embodiment obtains the output voltage of the battery body; when the output voltage is less than a preset voltage, it controls a switching module to be in a first conducting state; wherein, in the first conducting state, the battery body is maintained in a conductive connection with the external system power supply. This can improve the power supply stability of the battery assembly.

[0127] The battery management method provided in this application can be executed by a battery management device. This application uses the execution of the battery management method by a battery management device as an example to illustrate the battery management device provided in this application.

[0128] See Figure 8 , Figure 8 This is a structural diagram of the battery management device provided in the embodiments of this application; as shown Figure 8As shown, the battery management device 800 can be applied to the aforementioned battery assembly, and also to electronic devices such as mobile phones that include the aforementioned battery assembly. The battery management device 800 includes:

[0129] Acquisition module 801 is used to acquire the output voltage of the battery body;

[0130] The first control module 802 is used to control the switch module to be in a first conducting state when the output voltage is less than the preset voltage.

[0131] In the first conducting state, the battery body is maintained in a conductive connection with the external system power supply.

[0132] Optionally, the battery management device 800 further includes:

[0133] The second control module is used to control the fuel gauge module to detect the remaining power of the battery module at a first time interval when the output voltage is greater than or equal to the preset voltage.

[0134] The third control module is used to control the fuel gauge module to detect the remaining power of the battery module at a second time interval when the output voltage is less than the preset voltage.

[0135] The second time interval is shorter than the first time interval.

[0136] The battery management device in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the device.

[0137] The battery management device 800 in this embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this embodiment does not specifically limit its use.

[0138] The battery management device 800 provided in this application embodiment can achieve... Figure 7 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0139] See Figure 9 , Figure 9 This is one of the structural diagrams of the electronic device provided in the embodiments of this application; such as Figure 9 As shown, this application embodiment also provides an electronic device 900, including a processor 901 and a memory 902. The memory 902 stores a program or instructions that can run on the processor 901. When the program or instructions are executed by the processor 901, they implement the various steps of the above-described battery management method embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0140] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0141] See Figure 10 , Figure 10 This is a second structural diagram of the electronic device provided in the embodiments of this application; as shown Figure 10 As shown, the electronic device 1000 includes, but is not limited to, components such as: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0142] Those skilled in the art will understand that the electronic device 1000 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1010 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 10 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0143] The processor 1010 is used for:

[0144] Obtain the output voltage of the battery body;

[0145] When the output voltage is less than the preset voltage, the control switch module is in the first conducting state;

[0146] In the first conducting state, the battery body is maintained in a conductive connection with the external system power supply.

[0147] Optionally, the processor 1010 is used for:

[0148] When the output voltage is greater than or equal to the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a first time interval.

[0149] or,

[0150] When the output voltage is less than the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a second time interval.

[0151] The second time interval is shorter than the first time interval.

[0152] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042. The GPU 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0153] The memory 1009 can be used to store software programs and various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0154] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0155] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described battery management method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0156] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0157] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described battery management method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0158] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0159] This application provides a computer program product, including computer instructions. When executed by a processor, these computer instructions implement the various processes of the above-described battery management method embodiments and achieve the same technical effects. To avoid repetition, further details are omitted here.

[0160] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0161] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0162] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A battery assembly, characterized in that, The device includes a battery module, a power management chip, and a switch module. The battery module includes a battery body and a fuel gauge module. The power management chip is used to detect the output voltage of the battery body. The fuel gauge module includes a first port and a second port. The first port is electrically connected to the power management chip, and the second port is electrically connected to the switch module. When the power management chip detects that the output voltage of the battery body is less than the preset voltage, it outputs a control signal to the switch module through the second port of the fuel gauge module to put the switch module into the first conduction state and maintain the conduction connection between the battery body and the external system power supply. Specifically, by adjusting the switch module to the first on state, the power management chip's original power-off signal is changed to a power-hold signal; or, the voltage signal received at the power supply voltage input terminal of the power management chip is made to be a reference voltage signal output by the output terminal that is greater than the reference voltage, so as to avoid the power management chip from outputting a power-off signal.

2. The battery assembly according to claim 1, characterized in that, The switching module includes a first control terminal, a first input terminal, a second input terminal, a first output terminal, and a first capacitor. The first control terminal is electrically connected to the second port, the first input terminal is electrically connected to the voltage output terminal of the battery assembly, the first output terminal is electrically connected to the power voltage input terminal of the power management chip, the second input terminal is electrically connected to the first terminal of the first capacitor, and the second terminal of the first capacitor is grounded. The first control terminal is used to control the switch module to switch between the first conduction state, the second conduction state, and the third conduction state. When the switch module is in the first conducting state, the first input terminal is disconnected from the first output terminal, and the first output terminal is connected to the second input terminal. When the switch module is in the second conduction state, the first input terminal is connected to the first output terminal, and the first output terminal is connected to the second input terminal. When the switch module is in the third conducting state, the first input terminal is connected to the first output terminal, and the first output terminal is disconnected from the second input terminal.

3. The battery assembly according to claim 2, characterized in that, When the power management chip detects that the output voltage of the battery body is less than a preset voltage, it controls the switch module to be in the first conduction state so as to supply power to the power voltage input terminal of the power management chip through the first capacitor, and the power management chip outputs a control signal to indicate maintaining the conduction connection between the battery body and the external system power supply.

4. The battery assembly according to claim 1, characterized in that, The switch module (30) includes a second control terminal, a third input terminal, a fourth input terminal, a second output terminal, a third output terminal, and an inverter. The second control terminal is electrically connected to the second port. The third input terminal is electrically connected to the voltage output terminal of the battery assembly. The fourth input terminal is grounded through a first resistor. The third output terminal is electrically connected to the first terminal of the inverter. The second output terminal and the second terminal of the inverter both output control signals to indicate the conduction state of the battery body and the external system power supply. The second control terminal is used to control the switch module to switch between the first conduction state and the fourth conduction state; When the switch module is in the first conducting state, the third input terminal is disconnected from the second output terminal, and the fourth input terminal is connected to the third output terminal; When the switch module is in the fourth conducting state, the third input terminal is connected to the second output terminal, and the fourth input terminal is disconnected from the third output terminal.

5. The battery assembly according to claim 4, characterized in that, When the power management chip detects that the output voltage of the battery body is less than the preset voltage, it controls the switch module to be in the first conduction state, so as to convert the low level output by the path where the fourth input terminal and the third output terminal are located to a high level through the inverter, and maintain the conduction connection between the battery body and the external system power supply.

6. An electronic device, characterized in that, Includes the battery assembly as described in any one of claims 1 to 5.

7. A battery management method, characterized in that, Applied to a battery assembly, the battery assembly comprising: A battery module, comprising a battery body and a fuel gauge module; A power management chip, wherein the power management chip is used to detect the output voltage of the battery body; Switching module; The power meter module includes a first port and a second port, the first port being electrically connected to the power management chip and the second port being electrically connected to the switch module. The method includes: Obtain the output voltage of the battery body; When the output voltage is less than the preset voltage, the control switch module is in the first conducting state; In the first conduction state, the power management chip adjusts the power-off signal it was originally going to output into a power-hold signal; or, the voltage signal received at the power voltage input terminal of the power management chip is a reference voltage signal output from the output terminal that is greater than the reference voltage, so as to avoid the power management chip outputting a power-off signal and maintain the conduction connection between the battery body and the external system power supply.

8. The method according to claim 7, characterized in that, After obtaining the output voltage of the battery body, the method further includes: When the output voltage is greater than or equal to the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a first time interval. or, When the output voltage is less than the preset voltage, the power meter module is controlled to detect the remaining power of the battery module at a second time interval. The second time interval is shorter than the first time interval.

9. A battery management device, characterized in that, Applied to a battery assembly, the battery assembly comprising: A battery module, comprising a battery body and a fuel gauge module; A power management chip, wherein the power management chip is used to detect the output voltage of the battery body; Switching module; The power meter module includes a first port and a second port, the first port being electrically connected to the power management chip and the second port being electrically connected to the switch module. The device includes: The acquisition module is used to acquire the output voltage of the battery body; The first control module is used to control the switch module to be in a first conducting state when the output voltage is less than the preset voltage. In the first conduction state, the power management chip adjusts the power-off signal it was originally going to output into a power-hold signal; or, the voltage signal received at the power voltage input terminal of the power management chip is a reference voltage signal output from the output terminal that is greater than the reference voltage, so as to avoid the power management chip outputting a power-off signal and maintain the conduction connection between the battery body and the external system power supply.

10. The apparatus according to claim 9, characterized in that, The device further includes: The second control module is used to control the fuel gauge module to detect the remaining power of the battery module at a first time interval when the output voltage is greater than or equal to the preset voltage. The third control module is used to control the fuel gauge module to detect the remaining power of the battery module at a second time interval when the output voltage is less than the preset voltage. The second time interval is shorter than the first time interval.

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