Battery management method and device and battery assembly

Abstract

The invention 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 voltameter module, the power management chip is used for detecting the output voltage of the battery body, the voltameter module comprises a first port and a second port, the first port is electrically connected with the power management chip, and the second port is electrically connected with the power management chip. The second port is electrically connected with the switch module; and when the power management chip detects that the output voltage of the battery body is smaller than a preset voltage, a control signal is output to the switch module through a second port of the voltameter module, so that the switch module is in a first conduction state, and conduction connection between the battery body and an external system power supply is maintained.

Description

Technical Field

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

[0002] In the related technology, silicon material batteries have higher energy density than graphite material batteries. In the same volume, silicon material batteries can contain more energy, allowing mobile phones and other electronic devices to have better battery life. However, since the electrochemical impedance of silicon material batteries is greater than that of graphite material batteries, that is, the battery impedance voltage drop of silicon material batteries is greater than that of graphite material batteries, when mobile phones and other electronic devices run applications under low power conditions, the voltage drop caused by the internal resistance of the battery will lower the system voltage, making the transient voltage caused by the voltage drop much lower than the shutdown voltage of the system, which makes the electronic device prone to black screen and power failure.

[0003] It can be seen that the battery solution in the related art has the problem of poor stability. Summary of the invention

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

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a battery assembly, including a battery module, a power management chip and a switch module, wherein 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, and the fuel gauge module includes a first port and a second port, wherein the first port is electrically connected to the power management chip, and the second port is electrically connected to the switch module;

[0007] When 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 fuel gauge module to put the switch module in a first conduction state and maintain the conduction connection between the battery body and the external system power supply.

[0008] In a second aspect, an embodiment of the present application provides an electronic device, comprising the battery assembly described in the first aspect.

[0009] In a third aspect, an embodiment of the present application provides a battery management method, which is applied to a battery assembly, wherein the battery assembly comprises:

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

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

[0012] Switch module;

[0013] Wherein, 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;

[0014] The method comprises:

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

[0016] When the output voltage is less than the preset voltage, the switch module is controlled to be in a first conducting state;

[0017] Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

[0018] In a fourth aspect, an embodiment of the present application provides a battery management device, which is applied to a battery assembly, wherein the battery assembly includes:

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

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

[0021] Switch module;

[0022] Wherein, 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;

[0023] The device comprises:

[0024] An acquisition module, used for acquiring the output voltage of the battery body;

[0025] A first control module, configured to control the switch module to be in a first conducting state when the output voltage is less than a preset voltage;

[0026] Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

[0027] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be executed on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0028] In a sixth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the third aspect are implemented.

[0029] In a seventh aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the third aspect.

[0030] In an eighth aspect, an embodiment of the present application provides a computer program product, comprising computer instructions, which, when executed by a processor, implement the method described in the third aspect.

[0031] In an embodiment of the present application, when the power management chip detects that the output voltage of the battery body is less than a preset voltage, a control signal can be output to the switch module through the second port of the fuel meter module to put the switch module in a first conduction state and maintain the conduction connection between the battery body and the external system power supply, that is, to control the battery body to continue to output electrical energy. This can reduce the power failure problem caused by the sudden drop of transient voltage caused by abnormal conditions such as the operation of heavy-load applications, improve the power supply capacity of the battery assembly, and enhance the power supply stability of the battery assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is one of the circuit diagrams of the battery assembly provided in the embodiment of the present application;

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

[0034] Figure 3 for Figure 1 A circuit diagram of a voltage comparison circuit of a power management chip shown in ;

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

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

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

[0038] Figure 7 is a flow chart of a battery management method provided in an embodiment of the present application;

[0039] Figure 8 is a structural diagram of a battery management device provided in an embodiment of the present application;

[0040] Fig. 9 It is one of the structural diagrams of the electronic device provided in the embodiment of the present application;

[0041] Fig.10 This is the second structural diagram of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

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

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

[0046] In some embodiments, the fuel gauge 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 conversion.

[0047] In some embodiments, the remaining power of the battery body 11 may be represented by percentages such as 0%, 1%, 3%, 5%, and 100%.

[0048] For electronic devices such as mobile phones that include the above-mentioned battery assembly, when it is detected that 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 functional modules such as display screens of electronic devices such as mobile phones. At this time, the power management chip 20 of the battery assembly can interrupt the conductive connection between the battery body 11 and the external system power supply, that is, interrupt the power supply of the battery body 11 to functional modules such as the display screen of the electronic device, that is, interrupt the power output of the battery body 11 to functional modules such as the display screen of the electronic device.

[0049] In some embodiments, the external system power supply can be understood as a power supply used to power the entire system in electronic devices such as mobile phones and laptops. Among them, the battery body 11 can be understood as an energy storage battery for electronic devices such as mobile phones and laptops, and can power the system power supply of electronic devices such as mobile phones and laptops. Moreover, the system power supply connected to the battery body 11 can power the functional modules such as the display screen, camera, flash, etc. of the electronic device, and realize the display, shooting and other functions of the electronic device.

[0050] In some embodiments, the above-mentioned 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 functional modules such as the display screen of the electronic device, or to interrupt the battery body 11 from supplying power to 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 continue to supply power to functional modules such as the display screen of the electronic device; 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 functional modules such as the display screen of the electronic device.

[0052] It is understandable that when the disconnection between the battery body 11 and the external system power supply is triggered, the shutdown process of electronic devices such as mobile phones can also be triggered to reduce the impact of power outage on the experience of electronic devices such as mobile phones.

[0053] In some embodiments, before triggering the shutdown process of an electronic device such as a mobile phone, 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 executing operations, thereby reducing the impact of the power failure of the electronic device 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 to prevent the battery module 10 from being affected by factors such as unstable external voltage.

[0055] In some embodiments, the battery module 10 further includes a battery connector 14 , which is 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 above-mentioned 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 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 end of the voltage comparison circuit can be electrically connected to the control end of a conduction switch used to achieve a conductive connection between the battery body 11 and 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 an on state or an off state.

[0058] It can be understood that when the conduction 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 conduction 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, 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 output terminal of the reference voltage. 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 output terminal of the reference voltage, and obtain a corresponding comparison result, and 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 on state or the off state.

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

[0061] In some embodiments, in addition to the detection circuit for detecting the instantaneous current inside the battery module 10, the fuel meter 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 solution, when the comparison result output by the comparator 23 indicates that the voltage signal output by the voltage output terminal of the 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 functional modules such as the display screen of the electronic device. However, since the voltage signal output by the voltage output terminal of the battery module 10 is less than the reference voltage signal output by the reference voltage output terminal, it does not mean that the remaining power of the battery body 11 has been exhausted. It may also be that abnormal conditions such as the operation of heavy-load applications 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, that is, when the power management chip 20 detects that the output voltage of the battery body 11 is lower than the preset voltage, a control signal can be output to the switch module 30 through the second port 122 of the fuel meter module 12 to put the switch module 30 in 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 electrical energy. This can reduce the power failure problem caused by the sudden drop of transient voltage caused by abnormal conditions such as the operation of heavy-load applications, improve the power supply capacity of the battery assembly, and enhance the power supply stability of the battery assembly.

[0064] The above-mentioned switch module 30 is in the first conduction state, which can be understood as adjusting the conduction state of the switch module 30 so that the power-off signal originally to be output by the power management chip 20 is adjusted to a power-on signal; or the voltage signal received by the power voltage input terminal 21 of the power management chip 20 is 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 power-off signal is used to instruct to interrupt the conductive connection between the battery body 11 and the external system power supply; and the power-maintaining signal is used to instruct to maintain the conductive connection between the battery body 11 and the external system power supply.

[0066] In some embodiments, 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 end of the first capacitor 315, and the second end of the first capacitor 315 is grounded.

[0067] Among them, the above-mentioned first input terminal 312 and the above-mentioned first output terminal 314 can form a first conduction path of the switch module 30, the above-mentioned second input terminal 313 and the above-mentioned first output terminal 314 can form a second conduction path of the switch module 30, and at least one of the first conduction path and the second conduction path of the switch module 30 is in a conduction state, that is, the switch module 30 can switch between the three conduction states of the first conduction state, the second conduction state and the third conduction state, that is, the first control terminal 311 can output a control signal based on the second port 122 of the power meter module 12 to control the switch module 30 to switch between the three conduction states of the first conduction state, the second conduction state and the third conduction state.

[0068] When the switch module 30 is in the first conduction 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 conducted; 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 assembly through the above-mentioned first conduction path, but can only be electrically connected to the first capacitor 315 through the above-mentioned second conduction 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 conducted, and the second input terminal 313 and the first output terminal 314 are conducted; at this time, since the first conduction path and the second conduction path are both in the conduction state, not only the electrical connection between the power supply voltage input terminal 21 of the power management chip 20 and the voltage output terminal of the battery assembly is realized, but also the electrical connection between the first capacitor 315 and the voltage output terminal of the battery assembly is realized, that is, the first capacitor 315 is equivalently mounted on the voltage output terminal of the battery assembly, that is, the electrical signal output by the battery assembly can charge the first capacitor 315 at this time.

[0070] When the switch module 30 is in the third conduction state, the first input terminal 312 and the first output terminal 314 are conducted, 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 voltage input terminal 21 of the power management chip 20 is electrically connected to the voltage output terminal of the battery assembly, the power management chip 20 can detect the output voltage of the battery assembly; and since the second conduction path is in the disconnection state, that is, the first capacitor 315 at this time 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 assembly when both the first conduction path and the second conduction path are in the conduction state.

[0071] In some embodiments, the first capacitor 315 may be a capacitor of several tens of uF.

[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, the control switch module 30 is in a first conduction state to power the power management chip 20 through the first capacitor 315, and the power management chip 20 outputs a control signal for indicating maintaining a conductive connection between the battery body 11 and the external system power supply.

[0073] In the present embodiment, when the power management chip 20 detects that the output voltage of the battery body 11 is less than the preset voltage, the switch module 30 is controlled to be in the first conduction 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 assembly when the first conduction path and the second conduction path of the switch module 30 are both in the conduction state is used as the output voltage of the battery assembly at this time. Compared with directly using the transient power supply generated by the battery assembly due to the operation of heavy-load applications as the output voltage of the battery assembly, the influence of the sudden drop of transient voltage caused by abnormal conditions such as the operation of heavy-load applications on the power supply stability of the battery assembly can be reduced.

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

[0075] Among them, when the switch module 30 is in the first conduction state, that is, the first conduction path of the switch module 30 is disconnected and the second conduction path is turned on, the first capacitor 315 will only transmit charge to the power voltage input terminal 21 of the power management chip 20, and because the parasitic resistance 25 is generally at the level of tens of KΩ, that is, when the first capacitor 315 discharges to the power voltage input terminal 21 of the power management chip 20, the energy stored in the first capacitor 315 will be equivalently consumed on the parasitic resistance 25.

[0076] Specifically, the discharge time τ of the first capacitor 315 is RC. As the voltage on the first capacitor 315 gradually decreases, 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 U1 voltage is inversely proportional to the RC product, that is, as long as the capacity 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 including the above-mentioned battery assembly, if the battery body of the battery assembly is a single-cell battery, and the shutdown voltage of the electronic device is set to 3.0V, and since the shutdown voltage of the power management chip 20 is less than the shutdown voltage, the shutdown voltage of the power management chip 20 can be set to 2.4V;

[0078] The above-mentioned preset voltage can be understood as a voltage value greater than the shutdown voltage of the electronic device. For example, when the shutdown voltage is 3.0V, the preset voltage can be set to 3.2V.

[0079] The preset voltage may be determined based on an empirical value and a transient voltage caused by running a heavy-load application.

[0080] Moreover, 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, the automatic shutdown process of the electronic device is triggered.

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

[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 meter module 12 can be controlled to detect the remaining power of the battery body 11 at a first time interval, such as detecting the remaining power of the battery body 11 at a time interval of 1 second, so as to reduce the power consumption required for the fuel meter module 12 to detect the remaining power.

[0083] When the electronic device runs 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, 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 detecting the remaining power of the battery body 11 at a time interval of 1 millisecond.

[0084] At the same time, the on-time (Tleft) and off-time (Toff) of the battery assembly can be calculated and compared, wherein 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. Moreover, when the on-time (Tleft) is less than the off-time (Toff), the switch module 30 can be controlled to be in the first on-state, that is, the power supply voltage input terminal 21 of the power management chip 20 is powered by the first capacitor 315 to extend the battery life of the battery assembly.

[0085] Moreover, after the switch module 30 is switched from the second conduction state to the first conduction state, the power meter module 12 can also be controlled to detect the remaining power of the battery body 11 at a first time interval, such as detecting the remaining power of the battery body 11 at a time interval of 1 second, so as to reduce the power consumption required for the power meter 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 remind the user that the power is insufficient and quickly switch to the power saving mode, and close the high-load applications running in the background; at the same time, the switch module 30 can switch to the second conduction state, and wait for the voltage of the battery body 11 to drop to 3.0V, and then go through the normal shutdown process. Through this setting, the transient low-voltage shutdown scenario can be reduced, and the operation of large-load applications can be limited, which improves the power supply stability of the battery assembly.

[0087] In some embodiments, 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 a first resistor 327, the third output terminal 325 is electrically connected to the first end of the inverter 326, and the second output terminal 324 and the second end of the inverter 326 both output a control signal for indicating the conduction state of the battery body 11 and the external system power supply.

[0088] Among them, the above-mentioned third input terminal 322 and the above-mentioned second output terminal 324 can form a third conduction path of the switch module 30, and the above-mentioned fourth input terminal 323 and the third output terminal 325 can form a 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 power 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 and the second output terminal 324 are disconnected, and the fourth input terminal 323 and the third output terminal 325 are connected.

[0090] When the switch module 30 is in the fourth conducting state, the third input terminal 322 is conducted with 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 meter module 12, that is, the power shutdown signal or the power hold signal output by the output terminal 24 of the power management chip 20 will be transmitted to the fuel meter module 12, so that the fuel meter module 12 outputs a control signal to the switch module 30 based on the power shutdown signal or the power hold signal output by the power management chip 20, so that the switch module 30 is in the above-mentioned first conduction state or the above-mentioned fourth conduction state.

[0092] The power-off signal is used to instruct to interrupt the conductive connection between the battery body 11 and the external system power supply; and the power-maintaining signal is used to instruct to maintain the conductive connection between the battery body 11 and the external system power supply.

[0093] Moreover, at this time, the power-off signal or power-hold signal outputted from 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 on 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 outputted by the fuel meter module 12, thereby controlling the above-mentioned conduction switch to be in the on state or the off state. That is, the conduction state of the switch module 30 can be adjusted to realize the switching control of the conduction connection between the battery body 11 and the external system power supply.

[0094] Specifically, when the first port 121 of the fuel meter module 12 receives a power hold signal output by the output terminal 24 of the power management chip 20, the fuel meter module 12 can output a first control signal to the switch module 30 to put the switch module 30 in the 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] Correspondingly, when the first port 121 of the fuel meter module 12 receives the power-off signal output by the output terminal 24 of the power management chip 20, the fuel meter module 12 can output a second control signal to the switch module 30 to put the switch module 30 in the first conduction state, and enable the switch module 30 to output the power-off signal based on the fourth conduction path, and the power-off signal output by the fourth conduction path can be converted into a power retention signal after being processed by the inverter 326, thereby maintaining the conduction connection between the battery body 11 and the external system power supply.

[0096] In some embodiments, 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 end 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 end 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-on signal by outputting a high level, and can output a power-off signal by outputting a low level.

[0098] By electrically connecting the third input terminal 322 to the second end of the second resistor 328, when the switch module 30 is in the fourth conduction state, the third input terminal 322 electrically connected to the second end of the second resistor 328 is equivalent to being connected to a high level, that is, the switch module 30 can output a power hold () signal by outputting a high level, 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 end of the inverter 326 is equivalent to being connected to a low level, and the low level will be converted into a high level after being processed by the inverter 326. That is, at this time, the switch module 30 can still output a high level to realize the output of the power supply holding signal, thereby maintaining the conductive 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 including the above-mentioned battery assembly, if the battery body of the battery assembly is a single-cell battery and the shutdown voltage of the electronic device is 3.0V, the shutdown voltage of the power management chip 20 is less than the shutdown voltage, such as the shutdown voltage of the power management chip 20 can be set to 2.4V;

[0101] In some embodiments, the preset voltage may be understood as a voltage value greater than a shutdown voltage of the electronic device. For example, when the shutdown voltage is 3.0V, the preset voltage may be set to 3.2V.

[0102] In some embodiments, the preset voltage may be understood as a cut-off voltage, for example, the preset voltage may 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 meter module 12, and the fuel meter 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 maintenance 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 meter module 12, that is, when the fuel meter module 12 receives the high-level signal output by the output terminal 24 of the power management chip 20, the fuel meter module 12 can control the fuel meter module 12 to detect the remaining power of the battery body 11 at a first time interval, such as detecting the remaining power of the battery body 11 at a time interval of 1 second, so as to reduce the power consumption required for the fuel meter module 12 to perform remaining power detection.

[0105] When 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 detecting the remaining power of the battery body 11 at a time interval of 1 millisecond.

[0106] In this way, by reducing the detection cycle of the power meter module 12 to detect the remaining power of the battery body 11, 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 meter module 12, that is, when the fuel meter module 12 receives the low-level signal output by the output terminal 24 of the power management chip 20, the fuel meter 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 shutdown signal based on the fourth conduction path, and the power shutdown signal output by the fourth conduction path can be converted into a power hold signal after being processed by the inverter 326, thereby maintaining the conduction connection between the battery body 11 and the external system power supply, and ensuring that transient voltage loads do not affect the power supply effect of the battery assembly.

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

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

[0110] In the present application, when 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 switch module 30 through the second port 122 of the fuel meter module 12 to put the switch module 30 in the first conduction state and maintain the conduction connection between the battery body 11 and the external system power supply, that is, to control the battery body 11 to continue to output electrical energy. This can reduce the power failure problem caused by the sudden drop of transient voltage caused by abnormal conditions such as the operation of heavy-load applications, improve the power supply capacity of the battery assembly, and enhance the power supply stability of the battery assembly.

[0111] An embodiment of the present application also provides an electronic device, comprising the above-mentioned battery assembly.

[0112] It should be noted that the implementation method of the above-mentioned battery assembly embodiment is also applicable to the embodiment of the electronic device and can achieve the same technical effect, which will not be repeated here.

[0113] In some embodiments, the power management chip 20 and the switch module 30 may be disposed on a main board of the electronic device.

[0114] The electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA).

[0115] See also Figure 7 , Figure 7 is a flow chart of a battery management method provided in an embodiment of the present application; the battery management method can be applied to the above-mentioned battery assembly, and can also be applied to electronic devices such as mobile phones including the above-mentioned battery assembly, 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 a preset voltage, control the switch module to be in a first conducting state.

[0118] Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

[0119] In this embodiment, by obtaining the output voltage of the battery body, and when the output voltage is less than the preset voltage, the switch module is controlled to be in the first conduction state, and the conduction connection between the battery body and the external system power supply is maintained, that is, the battery body is controlled to continue to output electric energy. This can reduce the power failure problem caused by the sudden drop of transient voltage caused by abnormal conditions such as the operation of heavy-load applications, improve the power supply capacity of the battery assembly, and enhance the power supply stability of the battery assembly.

[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, controlling the power meter module 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, controlling the power meter module to detect the remaining power of the battery module at a second time interval;

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

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

[0126] The battery management method of the embodiment of the present application obtains the output voltage of the battery body; when the output voltage is less than a preset voltage, the switch module is controlled to be in a first conduction state; wherein, in the first conduction state, the conduction connection between the battery body and the external system power supply is maintained. In this way, the power supply stability of the battery assembly can be improved.

[0127] The battery management method provided in the embodiment of the present application can be executed by a battery management device. In the embodiment of the present application, the battery management device provided in the embodiment of the present application is described by taking the battery management device executing the battery management method as an example.

[0128] See also Figure 8 , Figure 8 is a structural diagram of a battery management device provided in an embodiment of the present application; Figure 8As shown, the battery management device 800 can be applied to the above-mentioned battery assembly, and can also be applied to electronic devices such as mobile phones including the above-mentioned battery assembly, and the battery management device 800 includes:

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

[0130] A first control module 802, configured to control the switch module to be in a first conducting state when the output voltage is less than a preset voltage;

[0131] Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

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

[0133] A second control module, configured to control the power meter 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] A third control module, configured to control the power meter 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 smaller than the first time interval.

[0136] The battery management device in the embodiment of the present application can be an electronic device, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR) / virtual reality (Virtual Reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a netbook or a personal digital assistant (Personal Digital Assistant, PDA), etc., and can also be a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television (Television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0137] The battery management device 800 in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0138] The battery management device 800 provided in the embodiment of the present application can achieve Figure 7 To avoid repetition, the various processes implemented by the method embodiment are not described here.

[0139] See also Fig. 9 , Fig. 9 is one of the structural diagrams of the electronic device provided in the embodiment of the present application; Fig. 9 As shown, an embodiment of the present application also provides an electronic device 900, including a processor 901 and a memory 902, wherein the memory 902 stores programs or instructions that can be executed on the processor 901, and when the program or instructions are executed by the processor 901, the various steps of the above-mentioned battery management method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not described here.

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

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

[0142] Those skilled in the art will appreciate that the electronic device 1000 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1010 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.10 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0143] The processor 1010 is configured to:

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

[0145] When the output voltage is less than the preset voltage, the switch module is controlled to be in a first conducting state;

[0146] Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

[0147] Optionally, the processor 1010 is configured to:

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

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

[0152] It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. 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 two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0153] The memory 1009 can be used to store software programs and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1009 may include a volatile memory or a non-volatile memory, or the memory 1009 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1009 in the embodiment of the present application 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 processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1010.

[0155] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned battery management method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

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

[0157] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned battery management method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0158] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0159] An embodiment of the present application provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, the various processes of the above-mentioned battery management method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, they are not described here.

[0160] It should be noted that, in this article, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0161] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods 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 method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0162] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A battery assembly, characterized in that: The invention comprises a battery module, a power management chip and a switch module, wherein the battery module comprises a battery body and an electric meter module, the power management chip is used to detect the output voltage of the battery body, the electric meter module comprises 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 a preset voltage, a control signal is output to the switch module through the second port of the fuel gauge module to put the switch module in a first conduction state and maintain the conduction connection between the battery body and the external system power supply.

2. The battery assembly according to claim 1, characterized in that: The switch module includes a first control terminal, a first input terminal, a second input terminal, a first output terminal and a first capacitor, wherein 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 supply 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; Wherein, the first control end 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 conducting state, the first input terminal is conducted with the first output terminal, and the first output terminal is conducted with the second input terminal; When the switch module is in the third conducting state, the first input terminal is conducted with 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, the switch module is controlled to be in the first conduction state 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 for indicating maintaining a conductive 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) comprises a second control terminal, a third input terminal, a fourth input terminal, a second output terminal, a third output terminal and an inverter, wherein 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 via a first resistor, the third output terminal is electrically connected to the first terminal of the inverter, and the second output terminal and the second terminal of the inverter both output a control signal for indicating a conduction state between the battery body and the external system power supply; Wherein, the second control end 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 a preset voltage, the switch module is controlled 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 into 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: A battery assembly comprising the battery assembly as claimed 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, the battery module comprising a battery body and a fuel gauge module; A power management chip, the power management chip is used to detect the output voltage of the battery body; Switch module; Wherein, 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; The method comprises: Obtaining the output voltage of the battery body; When the output voltage is less than the preset voltage, the switch module is controlled to be in a first conducting state; Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

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, controlling the power meter module 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, controlling the power meter module to detect the remaining power of the battery module at a second time interval; The second time interval is smaller 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, the battery module comprising a battery body and a fuel gauge module; A power management chip, the power management chip is used to detect the output voltage of the battery body; Switch module; Wherein, 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; The device comprises: An acquisition module, used for acquiring the output voltage of the battery body; A first control module, configured to control the switch module to be in a first conducting state when the output voltage is less than a preset voltage; Wherein, in the first conductive state, the conductive connection between the battery body and the external system power supply is maintained.

10. The device according to claim 9, characterized in that The device also includes: A second control module, configured to control the power meter 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; A third control module, configured to control the power meter 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 smaller than the first time interval.

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