CN113991766A

CN113991766A - Charging method, readable medium, program product, and electronic device

Info

Publication number: CN113991766A
Application number: CN202111115125.5A
Authority: CN
Inventors: 邓旭同; 张海涛; 王丰; 陈东国; 秦永辉
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-28

Abstract

The application relates to a charging method, a readable medium, a program product and an electronic device. The method comprises the following steps: collecting the battery temperature of the electronic equipment; under the condition that the temperature of the battery is determined to be lower than a set temperature threshold value, controlling the battery to be in an uncharged state, and increasing the temperature of the battery by controlling the running states of parts of the electronic equipment; and controlling the battery to be in a charging state under the condition that the battery temperature is determined to be higher than the set temperature threshold value. According to the technical scheme, the high-power-consumption mode of the electronic equipment is started in the low-temperature environment, and the battery of the electronic equipment is preheated by heat generated by the high-power-consumption device, so that the battery is charged after entering a chargeable temperature interval. Therefore, the charging requirement of the user in a low-temperature environment can be met, and the user experience is favorably improved.

Description

Charging method, readable medium, program product, and electronic device

Technical Field

The present application relates to the field of battery charging, and more particularly, to a charging method, a readable medium, a program product, and an electronic device.

Background

The battery is an indispensable device on the electronic equipment and comprises a battery core, a protection circuit and a shell, and the battery can store electric power through charging and then supply power to the electronic equipment through discharging.

However, when the battery is charged under a low temperature condition, the battery may be damaged due to the low temperature of the battery core, and thus potential safety hazards exist. For example, for an electronic device using a lithium battery, such as a mobile phone or a smart bracelet, when the lithium battery is charged, if the temperature of a battery core is low, precipitation of metal lithium on the surface of an electrode is aggravated, and lithium crystals are formed. The deposition of lithium crystals can pierce the separator on the surface of the electrode, cause short circuit of the battery and have serious potential safety hazard. Therefore, in the charging safety regulations, it is required: when a battery of electronic equipment is charged, the cell temperature of the battery must be more than 0 ℃.

However, there is a real need in some scenarios to charge electronic devices at low temperatures. For example, in some regions, the temperature is low in winter, so that the temperature of a battery core of the electronic equipment is lower than 0 ℃, the probability that a user faces that the electronic equipment is out of power but is forbidden to charge due to low temperature or the charging current is smaller than the power consumption of the electronic equipment is greatly improved, inconvenience is brought to the user, and user experience is influenced.

Disclosure of Invention

In view of the above, embodiments of the present application provide a charging method, a readable medium, a program product, and an electronic device.

According to the technical scheme, under the condition that the ambient temperature is lower than the set temperature threshold, the battery temperature of the electronic equipment is improved by controlling the running states of parts in the electronic equipment, so that the battery temperature enters a chargeable temperature range. For example, when the electronic device is charged in an environment with a temperature lower than 0 ℃, and when the power of the electronic device is higher than a set power threshold, for example, the power of the battery of the electronic device is higher than 30%, the high-power-consumption operating mode of the electronic device is turned on before the electronic device is connected to the charger for charging. For example, a processor of the electronic device executes more calculation tasks, increases the number of accesses to a memory of a mobile phone, and starts operation of some devices (e.g., power amplifiers) consuming more energy, so that the energy consuming devices generate heat faster, and then the heat generated by the high-power consumption devices of the electronic device is used to heat a battery of the electronic device, so that the temperature of the battery (specifically, the temperature of a battery cell) is increased, and the battery enters a chargeable temperature range and then is charged. Therefore, the charging requirement of the user in a low-temperature environment can be met, and the user experience is favorably improved.

In a first aspect, an embodiment of the present application provides a charging method, including:

collecting the battery temperature of the electronic equipment;

under the condition that the temperature of the battery is determined to be lower than a set temperature threshold value, controlling the battery to be in an uncharged state, and increasing the temperature of the battery by controlling the running states of parts of the electronic equipment;

and controlling the battery to be in a charging state under the condition that the battery temperature is determined to be higher than the set temperature threshold value.

For example, if the temperature threshold is set to 0 ℃, the battery is controlled to be in an uncharged state when the temperature of the battery is lower than 0 ℃, some devices with higher energy consumption in the electronic equipment are in a high-power-consumption working mode, the battery is heated by using the heat of the energy-consumption devices, and when the temperature of the battery is higher than 0 ℃, the energy-consumption devices are recovered to a normal working mode from the high-power-consumption mode and charge the battery. Therefore, the charging requirement of the user in a low-temperature environment can be met, and the user experience is favorably improved.

In a possible implementation of the first aspect, the controlling the battery to be in an uncharged state and raising the battery temperature by controlling an operation state of a part of devices in the electronic device in the case that it is determined that the battery temperature is lower than the set temperature threshold includes:

in the case where it is determined that the battery temperature is higher than the first temperature threshold and lower than the set temperature threshold, the battery is controlled to be in an uncharged state, and the battery temperature is increased by controlling the operating state of some devices in the electronic apparatus.

For example, the first temperature threshold is-5 ℃ and the set temperature threshold is 0 ℃.

In a possible implementation of the first aspect, the electronic device includes a first charging management module and a second charging management module, and the controlling the battery to be in an uncharged state includes:

and controlling a charging path between the first charging management module and the battery to be in a disconnected state, and controlling a charging path between the second charging management module and the battery to be in a disconnected state.

For example, the first charging management module is a module with a smaller charging current, and the second charging management module is a module with a larger charging current.

In a possible implementation of the first aspect, the increasing the battery temperature by controlling an operation state of a part of devices in the electronic device includes:

control of the partial device from the first operating state to the second operating state in the event of the partial device having been operated, or

Under the condition that part of the devices are not operated, controlling part of the devices to operate in a second operation state,

the battery temperature is raised by the heat generated by part of the devices in the second operating state,

and the power of the partial device in the second operation state is larger than that of the partial device in the first operation state.

For example, the first operation state is a normal operation mode, and the second operation state is a high power consumption operation mode.

In a possible implementation of the first aspect, the electronic device includes a first charging management module and a second charging management module, and the controlling the battery to be in the charging state when it is determined that the battery temperature is higher than the set temperature threshold includes:

under the condition that the battery temperature is determined to be higher than the set temperature threshold and lower than the second temperature threshold, controlling the first charging management module to provide a first charging current for the battery, and controlling part of the device to be in a first running state; or

Under the condition that the battery temperature is determined to be higher than a second temperature threshold and lower than a third temperature threshold, controlling the first charging management module to provide a second charging current to the battery, and controlling part of the device to be in a first operation state, wherein the second charging current is larger than the first charging current; or

Under the condition that the battery temperature is determined to be higher than a third temperature threshold and lower than a fourth temperature threshold, controlling a second charging management module to provide a third charging current to the battery, and controlling a part of devices to be in a first operation state, wherein the third charging current is larger than the second charging current; or

Under the condition that the battery temperature is determined to be higher than a fourth temperature threshold and lower than a fifth temperature threshold, controlling a second charging management module to provide a fourth charging current to the battery, and controlling a part of devices to be in a first operation state, wherein the fourth charging current is larger than the second charging current; or

In the case that the battery temperature is determined to be higher than a fifth temperature threshold and lower than a sixth temperature threshold, controlling the second charging management module to provide a fifth charging current to the battery, and controlling the partial device to be in the first operation state, wherein the fifth charging current is larger than the second charging current; or

And in the case that the battery temperature is determined to be higher than the sixth temperature threshold and lower than the seventh temperature threshold, controlling the first charging management module to provide a sixth charging current to the battery, and controlling the partial device to be in the first operation state, wherein the sixth charging current is larger than the second charging current, and the sixth charging current is smaller than any one of the third charging current, the fourth charging current and the fifth charging current.

The battery charging management module is selected to be adopted to charge the battery according to the temperature of the battery, the charging current of the battery is determined according to different battery temperatures, the chemical characteristics of the battery in different temperature intervals are met, and the battery charging efficiency can be improved while the battery charging safety is guaranteed.

In a possible implementation of the first aspect, the method further includes:

and controlling the battery to be in an uncharged state under the condition that the battery temperature is determined to be higher than the seventh temperature threshold value.

In one possible implementation of the first aspect, the set temperature threshold is 0 ℃; the first temperature threshold is-5 ℃; the second temperature threshold is 5 ℃; the third temperature threshold is 10 ℃; the fourth temperature threshold is 20 ℃; the fifth temperature threshold is 35 ℃; the sixth temperature threshold is 45 ℃; the seventh temperature threshold is 60 ℃.

Under the condition that the battery temperature is determined to be higher than a second temperature threshold and lower than a third temperature threshold, controlling a second charging management module to provide a second charging current to the battery, and controlling a part of devices to be in a first operation state, wherein the second charging current is larger than the first charging current; or

Under the condition that the battery temperature is determined to be higher than a third temperature threshold and lower than a fourth temperature threshold, controlling a second charging management module to provide a third charging current to the battery, and controlling a part of devices to be in a first operation state, wherein the third charging current is larger than the first charging current; or

Under the condition that the battery temperature is determined to be higher than a fourth temperature threshold and lower than a fifth temperature threshold, controlling a second charging management module to provide a fourth charging current to the battery, and controlling a part of devices to be in a first operation state, wherein the fourth charging current is larger than the first charging current; or

In the case where it is determined that the battery temperature is higher than the fifth temperature threshold and lower than the sixth temperature threshold, the first charge management module is controlled to supply a fifth charging current to the battery, and the control section device is in the first operation state, wherein the fifth charging current is larger than the first charging current, and the fifth charging current is larger than or smaller than any one of the second charging current, the third charging current, and the fourth charging current.

Similarly, which charging management module is selected to be adopted to charge the battery according to the temperature of the battery, and the charging current of the battery is determined according to different battery temperatures, so that the chemical characteristics of the battery in different temperature intervals are met, and the charging efficiency of the battery can be improved while the charging safety of the battery is ensured.

In a possible implementation of the first aspect, the method further includes:

and controlling the battery to be in an uncharged state under the condition that the battery temperature is determined to be higher than the sixth temperature threshold value.

In one possible implementation of the first aspect, the set temperature threshold is 5 ℃; the first temperature threshold is-5 ℃; the second temperature threshold is 10 ℃; the third temperature threshold is 20 ℃; the fourth temperature threshold is 35 ℃; the fifth temperature threshold is 45 ℃; the sixth temperature threshold is 60 ℃.

In a possible implementation of the first aspect, the battery includes a thermistor, and the acquiring the battery temperature of the electronic device includes:

the voltage across the thermistor is collected and the battery temperature is determined based on the collected voltage.

In one possible implementation of the first aspect, the battery includes a battery cell, and the battery temperature is a battery cell temperature.

In a second aspect, embodiments of the present application provide a computer-readable storage medium having instructions stored thereon, which, when executed on an electronic device, cause the electronic device to perform the first aspect and any one of the various possible implementations of the first aspect.

In a third aspect, the present application provides a computer program product, which includes instructions for implementing the method according to the first aspect as well as any one of various possible implementations of the first aspect.

In a fourth aspect, an embodiment of the present application provides an electronic device, including:

a memory for storing instructions for execution by one or more processors of the electronic device, an

A processor configured to perform the method of the first aspect described above and any of its various possible implementations when the instructions are executed by the one or more processors.

Drawings

FIG. 1 illustrates a scene diagram of electronic device charging, according to some embodiments of the present application;

FIG. 2 illustrates a charging curve of a battery, according to some embodiments of the present application;

FIG. 3 illustrates a block diagram of a charging system, according to some embodiments of the present application;

FIG. 4A illustrates a flow chart of charging a cell phone in a low temperature environment, according to some embodiments of the present application;

FIG. 4B illustrates another flow chart of charging a cell phone in a low temperature environment, according to some embodiments of the present application;

FIG. 5 illustrates a circuit schematic of several elements involved in battery temperature collection in a handset motherboard, according to some embodiments of the present application;

FIG. 6A illustrates a flow chart of a method for charging a cell phone at various ambient temperatures, according to some embodiments of the present application;

FIG. 6B illustrates a flow chart of another method for charging a cell phone at various ambient temperatures, according to some embodiments of the present application;

fig. 7 illustrates a hardware architecture diagram of a handset, according to some embodiments of the present application.

Detailed Description

Illustrative embodiments of the present application include, but are not limited to, a charging method, readable medium, program product, and electronic device.

The technical solution in the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic view of a charging scenario of an electronic device 100 according to an embodiment of the present disclosure. As shown in fig. 1, when the electronic device 100 needs to be charged, a user may plug a charging wire 400 into a Universal Serial Bus (USB) interface of a charger (also referred to as a power adapter) 200, plug the charger 200 into a wall socket 300, and plug the charging wire 400 into a USB interface of the electronic device 100, thereby charging the electronic device 100. The electronic device 100 may also display the charging status for the user to check whether the battery is fully charged.

It is understood that charging the electronic device 100 means charging a battery of the electronic device 100. In order to avoid safety problems such as short circuit of the battery (here, a lithium battery is taken as an example) caused by lithium crystallization of the battery of the electronic device 100 when the battery is charged in a low temperature environment, the cell temperature of the battery must be greater than 0 ℃ when the battery of the electronic device 100 is charged according to the requirements of relevant charging safety regulations, for example, Japan Electronics and Information Technology Industries Association (JEITA) regulations. The JEITA specification divides the temperature intervals, limits the charging current and the charging voltage in each interval based on the consideration of the safety of battery charging, the service life of the battery and the like, and forms various charging curves. For example, as shown in fig. 2, a battery charging curve, it can be easily seen that at temperatures less than 0 ℃ and above 60 ℃, both the charging current and the charging voltage are 0; when the temperature is in the range of 10 ℃ to 45 ℃, the charging voltage and the charging current are large, and the charging efficiency is high.

Generally, the charging environment temperature of the electronic device 100 is higher than 0 ℃, for example, when the electronic device 100 is charged indoors, the indoor temperature is generally higher than 0 ℃. However, there is certainly a need in some scenarios to charge the electronic device 100 at low temperatures. For example, when a user carries the electronic device 100 to work outdoors at a temperature lower than 0 ℃, the user is confronted with the inconvenience that the electronic device 100 cannot be charged due to the environmental temperature lower than 0 ℃.

In order to solve the technical problem that the electronic device cannot be charged at a low temperature, the present application provides a charging method that can charge the electronic device 100 in a low-temperature environment. Specifically, when the electronic device 100 is charged in an environment with a temperature lower than 0 ℃, when the power of the electronic device 100 is higher than a set power threshold, for example, the power of the battery of the electronic device 100 is higher than 30%, the high power consumption operation mode of the electronic device 100 is turned on before the electronic device 100 is connected to the charger 200 for charging. For example, the processor 110 of the mobile phone executes more calculation tasks, increases the number of accesses to the memory of the mobile phone, and starts the operation of some devices (e.g., power amplifiers) with more energy consumption, so that the energy consumption devices generate heat faster, and further, the heat generated by the high-power consumption devices of the electronic device 100 is used to heat the battery of the electronic device 100, so as to raise the temperature of the battery (specifically, the temperature of the battery core), and charge the battery after the battery enters a chargeable temperature range. Therefore, the charging requirement of the user in a low-temperature environment can be met, and the user experience is favorably improved.

It is understood that, in some embodiments, the electronic device 100 may automatically turn on the operation of a part of the high power consumption devices according to a preset rule without being perceived by the user when determining that the temperature of the battery (specifically, the temperature of the battery cell) is lower than 0 ℃. It is also possible to increase the power consumption of already operating high power consuming devices, e.g. to have the processor perform more computational tasks, to increase the number of accesses to the memory, etc., in case of already operating parts of these devices.

It should be noted that fig. 1 exemplarily shows a wired charging scenario of the electronic device 100. In some embodiments, the electronic device 100 may further have a wireless charging function, for example, the electronic device 100 is coupled to the wireless charging coil of the wireless charger through the wireless charging coil, and induces an alternating electromagnetic field emitted by the wireless charging coil of the wireless charger to generate an alternating electrical signal, and then rectifies the generated alternating electrical signal into a direct electrical signal, so as to charge a battery of the electronic device 100.

For example, the wireless charging function supported by the electronic device 100 may comply with the Qi standard (a wireless charging standard introduced by the wireless charging alliance). The Qi standard specifies that the frequency of the alternating electrical signal is within a certain frequency range when the electronic device 100 is wirelessly charged. For example, the Qi standard may specify that the frequency of the alternating electrical signal is between 100 kilohertz (KHz) -205KHz when the electronic device 100 is wirelessly charged.

In addition, the electronic device 100 shown in fig. 1 to which the charging method provided in the embodiment of the present application is applicable may be a mobile phone, a wearable device (such as a smart watch), a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) device, a Virtual Reality (VR) device, and the like, which have the above functions.

In the following description, for convenience of understanding, the electronic device 100 shown in fig. 1 is taken as an example of a mobile phone 100, and the technical solution of the present application is introduced below.

First, referring to fig. 3, a charging system 10 to which the present invention is applied will be described in detail. Specifically, as shown in fig. 3, the charging system 10 includes a cellular phone 100 and a charger 200.

The mobile phone 100 includes an energy consumption system 101 and a power supply system 103, wherein the power supply system 103 is used for supplying power to the energy consumption system 101. The energy consumption system 101 includes a plurality of energy consumption devices, such as a processor 110, a memory (not shown), a power amplifier (not shown), a camera (not shown), and the like. The power supply system 103 includes a first charging management module 141, a second charging management module 144, and a battery 142. The first charging management module 141 and the second charging management module 144 are connected to the energy consumption system 101 and the battery 142. The first charging management module 141 includes a switch S0, and the first charging management module 141 is connected with the second charging management module 144 via the switch S0. And the first and second charging management modules 141 and 144 are also connected to the processor 110, for example, connected to the processor 110 through an integrated circuit (I2C) interface.

The processor 110 is configured to control the mobile phone 100 to execute a corresponding working mode according to the acquired temperature of the battery 142.

In some embodiments, the processor 110 is configured to control the mobile phone 100 to turn on the high power consumption operation mode, turn off the switch S0 of the first charging management module 141, and supply power to the energy consuming system through the first charging management module 141, if it is determined that the temperature of the battery 142 is lower than 0 ℃. When the mobile phone 100 is in the high power consumption operating mode, the operation of some high power consumption devices is started, so that the heat generated by the high power consumption devices such as the processor 110, the memory, the power amplifier, and the like of the mobile phone 100 is increased in unit time, and the heat is transferred to the battery 142, so that the battery 142 is rapidly heated, and the battery is charged after entering a chargeable temperature range (for example, the temperature of the battery 142 is higher than 0 ℃). When the temperature of the battery 142 is lower than 0 ℃, the switch S0 is turned off to isolate the battery 142 from the energy consumption system 101, so as to avoid that the high-power-consumption operating mode is turned on to supply power to the energy consumption system 101 from the battery 142, which results in the rapid exhaustion of the battery 142 when the battery 142 has low power and cannot be charged.

In some embodiments, the processor 110 is configured to control the handset 100 to automatically switch from the high power consumption mode of operation to the normal mode of operation if it is determined that the temperature of the battery 142 is above 0 ℃ but below 5 ℃. Meanwhile, in the case where the temperature of the battery 142 is higher than 0 ℃ but lower than 5 ℃, the processor 110 controls the switch S0 of the first charge management module 141 to be closed, so that the charging current Ibat output by the first charge management module 141 flows into the battery 142 to charge the battery 142. When the mobile phone 100 is in the normal operating mode, some high power devices turned on in the high power operating mode do not work any more, or the power consumption of the high power devices is reduced, for example, the computing task executed by the processor 110 is reduced, and the access frequency to the memory is reduced.

In some embodiments, the processor 110 is configured to maintain a normal operation mode when the temperature of the battery 142 is determined to be higher than 5 ℃ but lower than 10 ℃, and still charge the battery 142 using the first charge management module 141, and at the same time, keep the switch S0 of the first charge management module 141 in a closed state, so that the charging current output by the first charge management module 141 flows into the battery 142 to continue charging the battery 142.

In some embodiments, the processor 110 is further configured to continue to control the handset 100 to remain in the normal operation mode, open the switch S0 of the first charging management module 141, and charge the battery 142 through the second charging management module 144 if it is determined that the temperature of the battery 142 is higher than 10 ℃ but lower than 60 ℃.

Furthermore, in some embodiments, the processor 110 is further configured to control the second charging management module 144, which provides the charging current to the battery 142, to output a different charging current based on the detected different temperature of the battery 142 according to a preset charging rule in case that it is determined that the temperature of the battery 142 is higher than 10 ℃ but lower than 60 ℃. The preset charging rule is a rule preset in the mobile phone 100 that different charging currents and the like are provided for different temperatures of the battery 142.

The first charge management module 141 is configured to supply power to the battery 142 and the energy consumption system 101 when the temperature of the battery 142 is higher than 0 ℃ but lower than 10 ℃. Specifically, where charger 200 is a wired charger, charger 200 converts alternating current (e.g., 220V alternating current) from a power source to low voltage direct current (e.g., 5V, 2A direct current). The charger 200 inputs a dc signal to the first charge management module 141 through a USB interface (not shown), and a part of the output current Ibat of the first charge management module 141 flows to the battery 142 to charge the battery 142, and another part of the output current Isys flows to the energy consumption system 101 to supply power to the energy consumption system 101.

In some embodiments, in the case that the temperature of the battery 142 is higher than 0 ℃ but lower than 5 ℃, the charging current output by the first charge management module 141 to the battery 142 is 0.1C (C is a battery capacity unit), and assuming that the capacity of the battery 142 is 4000mAh, the charging current output by the first charge management module 141 to the battery 142 is 0.4A.

In some embodiments, in the case that the temperature of the battery 142 is higher than 5 ℃ but lower than 10 ℃, the charging current output by the first charge management module 141 to the battery 142 is 0.3C, and assuming that the capacity of the battery 142 is 4000mAh, the maximum charging current output by the first charge management module 141 to the battery 142 is 1.2A.

The second charge management module 144 is configured to supply power to the battery 142 and the energy consuming system 101 when the temperature of the battery 142 is higher than 10 ℃ but lower than 60 ℃. It should be noted that, in general, if the temperature of the battery 142 is higher than 60 ℃, the battery 142 is prohibited from being charged according to the requirements of the relevant charging safety regulations. For example, in some embodiments, if the temperature of the battery 142 of the mobile phone 100 is higher than 60 ℃, the mobile phone 100 is turned off, so as to avoid the problem that the mobile phone 100 may damage a plurality of devices including the battery 142 due to continuous heat generation when the mobile phone 100 is turned on.

In some embodiments, in the case that the temperature of the battery 142 is higher than 10 ℃ but lower than 60 ℃, the maximum charging current output by the second charging management module 144 to the battery 142 may vary with the temperature of the battery 142. For example, assuming that the capacity of the battery 142 is 4000mAh, the maximum charging current output from the second charge management module 144 to the battery 142 is 8A in the case where the temperature of the battery 142 is 10 to 20 ℃. As another example, in the case that the temperature of the battery 142 is 20 ℃ to 35 ℃, the maximum charging current output to the battery 142 by the second charging management module 144 is 12A.

In some embodiments, the first charging Management module 141 and the second charging Management module 144 are each a dedicated Power Management chip, such as a Power Management Integrated Circuit (PMIC), having functions of voltage conversion, dynamic voltage regulation, and the like. In some embodiments, the charging current output by the first charging management module 141 to the battery 142 is small, for example, not more than 1.2A, the charging efficiency is low, and the speed is slow, so the first charging management module 141 may be referred to as a slow charging module. In some embodiments, the second charge management module 144 outputs a larger charging current to the battery 142, for example, the current reaches 8A, the charging efficiency is higher, and the charging speed is faster, so the second charge management module 144 may be referred to as a fast charging module.

In some embodiments, the mobile phone 100 further includes a wireless charging module 143 and a wireless charging coil (not shown), where the wireless charging module 143 is configured to, when the charger 200 is a wireless charger, couple the wireless charging coil with the wireless charging coil of the charger 200 through the wireless charging coil, induce an alternating electromagnetic field emitted by the wireless charging coil of the charger 200, generate an alternating electrical signal, rectify the generated alternating electrical signal into a direct current electrical signal, and charge the battery 142 through the first charging management module 141 or the second charging management module 144. In some embodiments, after the mobile phone 100 is powered on, the wireless charging module 143 is always in the on state, and after the wireless charging module 143 detects the alternating electromagnetic field, an interrupt is generated to the processor 110, so that the processor 110 controls the first charging management module 141 or the second charging management module 144 to communicate with the wireless charging module 143, so as to charge the battery 142 via the first charging management module 141 and the second charging management module 144.

The battery 142 includes a cell 1422 and a protection circuit 1421. The cell 1422 is a charge storage portion of the battery 142, and charging the battery 142 is charging the cell 1422. The protection circuit 1421 provides protection functions such as overcharge protection, overdischarge protection, overcurrent protection, and short-circuit protection for the battery 142.

It is to be understood that the system configuration shown in fig. 3 is an exemplary charging system configuration, and does not constitute a specific limitation to the charging system 10 that can implement the technical solution of the present application. In other embodiments of the present application, the handset 100 in the charging system 10 may include more or fewer components than shown in fig. 3, or combine certain components, or split certain components, or a different arrangement of components. The components shown in fig. 3 may be implemented in hardware, software, or a combination of software and hardware.

After the charging system 10 to which the charging method provided in the present application is applied is introduced, the charging method of the mobile phone 100 in a low temperature environment will be described in detail with reference to the charging system 10 shown in fig. 3. Fig. 4A is a flowchart illustrating a charging method of the mobile phone 100 in a low temperature environment according to some embodiments of the present application, wherein each step of the flowchart is executed by the processor 110 of the mobile phone 100. Specifically, as shown in fig. 4A, the charging method of the mobile phone 100 in the low-temperature environment specifically includes the following steps:

step 401: the temperature of the battery 142 is collected. So as to determine the parameters of the mobile phone 100, such as the operating mode and the magnitude of the charging current, according to the collected temperature of the battery 142. Note that the temperature of the battery 142 is the temperature of the battery cell 1422.

For example, the period duration for the processor 110 to periodically collect the temperature of the battery 142 may be preset in the mobile phone 200; alternatively, the period duration may be set by the user in the handset 100. For example, the period duration may be any length of time such as 3 seconds(s), 5s, 8s, 10s, and so on.

It will be appreciated that the handset 100 and charger 200 equipped with the battery 142 are already in communication before the processor 110 collects the temperature of the battery 142. Or collects the temperature of the battery 142 while the cellular phone 100 and the charger 200 are connected.

For example, the processor 110 may use the collected temperature of the protection circuit 1421 as the temperature of the battery 142. Fig. 5 is a schematic diagram illustrating an exemplary Temperature collection principle of a battery, in which the protection circuit 1421 includes a Negative Temperature Coefficient (NTC) thermistor Rt, and a resistance value of the thermistor Rt varies with Temperature, specifically, the higher the Temperature, the smaller the resistance value of the thermistor Rt; the lower the temperature, the greater the resistance value of the resistance Rt. The mobile phone 100 further includes a common resistor R1 connected in series with the resistor Rt, and the resistance of the resistor R1 does not change with the temperature change. Where VCC provides a fixed voltage value (e.g., 2.5 or 1.8V) for the series connection of resistor Rt and resistor R1. Since VCC is a fixed voltage value, the resistance value of the thermistor Rt changes with the change of temperature, and therefore, with the change of temperature, the voltage value across the thermistor Rt also changes, and the higher the temperature is, the lower the voltage value across the resistor Rt is, and conversely, the lower the temperature is, the higher the voltage value across the resistor Rt is.

In some embodiments, the voltage across the thermistor Rt may be collected by an Analog-to-Digital Converter (ADC) on the main board (not shown) of the mobile phone 100, the collected voltage value is converted into a Digital signal, and the processor 110 determines the temperature of the battery 142 by collecting the Digital signal output by the ADC.

In the embodiment of the present application, the processor 110 or the memory of the mobile phone 100 may store a plurality of voltage values of the thermistor Rt and a battery temperature corresponding to each voltage value. A plurality of voltage values of the thermistor Rt and a battery temperature corresponding to each voltage value may be preset in the mobile phone 100. The battery temperature corresponding to each voltage value may be obtained through a large number of tests before the mobile phone 100 leaves a factory.

In other embodiments, the processor 110 may also detect the temperature of the battery 142 by measuring the voltage across the common resistor R1. In combination with the above description: the smaller the voltage value across the common resistor R1, the lower the temperature of the battery 142; the greater the value of the voltage across the common resistor R1, the higher the temperature of the battery 142.

In this embodiment, the processor 110 or the memory of the mobile phone 100 may store a plurality of voltage values of the common resistor R1 and a battery temperature corresponding to each voltage value. The battery temperature corresponding to each voltage value may be obtained through a large number of tests before the mobile phone 100 leaves a factory. Specifically, the processor 110 may measure a voltage value across the common resistor R1 and query the battery temperature corresponding to the voltage value.

It should be noted that the method for detecting the temperature of the battery 142 by the processor 110 includes, but is not limited to, the above method, and any method for detecting the temperature of the battery 142 in the conventional technology can be applied to the embodiment of the present application, and the embodiment of the present application is not limited thereto.

Step 402 a: it is determined whether the temperature of the battery 142 is less than 0 deg.c. If yes, it indicates that the temperature of the battery 142 is less than 0 ℃, the battery 142 cannot be charged immediately, and the temperature of the battery 142 needs to be increased to be within the chargeable temperature range specified by the relevant specification to charge the battery 142, and the process proceeds to step 403. Otherwise, it indicates that the temperature of the battery 142 is higher than 0 ℃, the battery 142 may be charged, and the step 406 is performed to further determine in which temperature interval the temperature of the battery 142 is, so as to control the charging parameters, such as the charging current of the battery 142.

Step 403: the battery 142 is left in an uncharged state and the high power consumption operating mode is turned on to warm the battery 142. To avoid current flowing into the battery 142 to damage the battery 142 at temperatures less than 0 c.

For example, in some embodiments, the processor 110 controls the switch S0 of the first charge management module 141 to open when determining that the temperature of the battery 142 is greater than-5 ℃ and less than 0 ℃ and supplying power to the energy consumption system 101 through the first charge management module 141, so that no current flows into the battery 142.

In some embodiments, the processor 110 turns on the high power consumption operation mode of the mobile phone 100 when it is determined that the temperature of the battery 142 is less than 0 ℃, for example, to make the processor 110 of the mobile phone 100 perform more calculation tasks, increase the number of accesses to the memory of the mobile phone, turn on the operation of some devices (such as power amplifiers) consuming more power, and so on, so as to increase the amount of heat generated by these devices per unit time, thereby rapidly increasing the temperature, so as to conduct the heat to the battery 142 and warm up the battery 142.

It can be understood that, when the mobile phone 100 starts the high power consumption operating mode to preheat the battery 142 at a temperature lower than 0 ℃, the power of the battery 142 cannot be completely consumed, for example, 30% of the power of the battery 142 remains, and by turning off the switch S0, it can be avoided that after the mobile phone 100 starts the high power consumption operating mode, the battery 142 supplies power to the energy consumption system 101, and the mobile phone 100 is immediately turned off, so that the battery 142 cannot be preheated.

Step 404 a: it is determined whether the temperature of the battery 142 is greater than 0 deg.c.

That is, by turning on the high power consumption operating mode of the mobile phone 100, after the battery 142 is preheated by the heat generated by the energy consuming device of the mobile phone 100, it is determined again whether the temperature of the battery 142 enters the chargeable temperature range. If yes, indicating that the temperature of the battery 142 is increased to a chargeable temperature range after preheating, and entering step 405 to charge; otherwise, after the battery 142 is preheated, the temperature is not raised to the chargeable temperature range temporarily, and the step 403 is returned to continue preheating the battery.

Step 405: and the battery is charged through the slow charging module, and the high-power-consumption working mode is switched to the normal working mode.

That is, when the processor 110 determines that the temperature of the battery 142 is greater than 0 ℃, for example, when the processor 110 determines that the temperature of the battery 142 is 3 ℃, the charging path of the battery 142 is controlled to be conductive, so that a charging current flows into the battery 142 to charge the battery 142.

For example, in some embodiments, the processor 110 determines that the temperature of the battery 142 is 3 ℃, and charges the battery 142 through the first charge management module 141. Specifically, the switch S0 of the first charge management module 141 (i.e., the slow charge module) is closed, so that the current Ibat flows into the battery 142 to charge the battery 142. For example, the current Ibat is 0.1C (i.e., 0.4A) and the charging voltage is 5V.

Step 406: it is determined whether the temperature of the battery 142 is greater than 10 deg.c.

That is, the battery 142 with the temperature higher than 0 ℃ after preheating continues to be heated by the heat generated by the energy consumption device, and the temperature of the battery 142 is further increased after the battery 142 with the temperature higher than 0 ℃ after preheating is charged with a part of the electricity (for example, 5% of the electricity). Therefore, in order to improve the charging efficiency of the battery 142, it may be further determined whether the temperature of the battery 142 is greater than 10 ℃, so that in the case that the temperature of the battery 142 is greater than 10 ℃, the charging current of the battery 142 is further increased, and the process proceeds to step 407; otherwise, in the case that the temperature of the battery 142 is lower than 10 ℃, the process returns to step 405 to continue to charge the battery 142 through the slow charging module.

Step 407: the battery 142 is charged by the fast charge module.

For example, in some embodiments, to improve the charging efficiency of the battery 142, the processor 110 may control the magnitude of the charging current Ibat output by the second charge management module 144 to the battery 142 to be 2C (8A) when the temperature of the battery 142 is 15 ℃. It should be noted that only one of the first charging management module 141 and the second charging management module 144 can be turned on at the same time, that is, the charger 200 can only charge the battery 142 via the first charging management module 141 or the second charging management module 144 at the same time.

In this way, the processor 110 of the mobile phone 100 continuously detects the temperature of the battery 142, so as to control the mobile phone 100 to operate in the high power consumption operating mode when the temperature of the battery 142 is determined to be lower than 0 ℃, and the heat generated by some energy consuming devices of the mobile phone 100 is conducted to the battery 142 to preheat the battery 142. Therefore, even if a user using the mobile phone 100 is in an environment with a temperature lower than 0 ℃, the battery 142 of the mobile phone 100 can be charged in time when the electric quantity of the mobile phone 100 is low, which is beneficial to improving the user experience.

Another example of the charging method provided in the present application will be described below with reference to the charging system 10 shown in fig. 3 and the flowchart shown in fig. 4B.

The flowchart shown in fig. 4B is similar to the flowchart shown in fig. 4A, except that:

in the process shown in fig. 4B, when the battery temperature is lower than 5 ℃, the battery 142 is in the uncharged state, and the mobile phone 100 is in the high power consumption operation mode. In the process shown in fig. 4A, when the battery temperature is lower than 0 ℃, the battery 142 is in the uncharged state, and the mobile phone 100 is in the high power consumption operating mode; when the battery temperature is higher than 0 ℃, the battery 142 is charged and the mobile phone 100 is in the normal operation mode. Since each step in fig. 4B is similar to that in fig. 4A, and only steps 402B and 404B are different from fig. 4A, only steps 402B and 404B related to fig. 4B will be described in detail below. Similarly, the execution subjects of step 402b and step 404b are both the processor 110 of the mobile phone 100, specifically, step 402b and step 404b are as follows:

step 402 b: and judging whether the battery temperature is less than 5 ℃.

In order to avoid that when the battery temperature is greater than 0 ℃ and less than 5 ℃, the battery 142 is charged through the first charge management module 141 (when the switch S0 is closed) and the energy consumption of the energy consumption system 101 is high in the high power consumption operation mode, when the battery 142 has a low charge, the charging speed of the battery 142 may be lower than the discharging speed, so that the battery 142 is quickly depleted. Therefore, if yes, it indicates that the temperature of the battery 142 is less than 5 ℃, the process proceeds to step 403, the battery 142 is still in the uncharged state, and the high power consumption operation mode is started to heat the battery. Otherwise, it indicates that the temperature of the battery 142 is higher than 5 ℃, the battery 142 may be charged, and step 406 is performed to further determine whether the temperature of the battery 142 meets the charging condition of using the fast charging module.

Step 404 b: and judging whether the battery temperature is higher than 5 ℃.

That is, by turning on the high power consumption operating mode of the mobile phone 100, after the battery 142 is preheated by the heat generated by the high power consumption device of the mobile phone 100, it is determined again whether the temperature of the battery 142 enters the chargeable temperature range. If yes, indicating that the temperature of the battery 142 is increased to a chargeable temperature range after preheating, and entering step 405 to charge; otherwise, after the battery 142 is preheated, the temperature is not raised to the chargeable temperature range temporarily, and the step 403 is returned to continue preheating the battery. The chargeable temperature range herein mainly refers to a temperature range in which the charging efficiency of the battery 142 is high in the temperature range, for example, a temperature range in which the charging speed of the battery 142 is higher than the power consumption speed.

The charging process of the mobile phone 100 in a low temperature environment to which the charging method provided by the present application is applicable is described above, and the charging process of the mobile phone 100 in various different environmental temperatures to which the charging method provided by the present application is applicable is described below with reference to the accompanying drawings. Fig. 6A schematically illustrates a flowchart of a charging method of the mobile phone 100 at various ambient temperatures, according to some embodiments of the present application, in which steps of the flowchart are executed by the processor 110 of the mobile phone 100. Specifically, as shown in fig. 6A, the charging process of the mobile phone 100 includes the following steps:

step 601: the temperature of the battery 142 is collected. To determine whether the battery 142 needs to be preheated or not, and to determine the operation mode of the cellular phone 100 and the charge mode of the battery 142, according to the collected temperature of the battery 142. The operation modes of the handset 100 may include, for example, a high power consumption operation mode, a normal operation mode. The charging mode of the battery 142 may include, for example, a fast charging mode, a slow charging mode, and the like. Details will be described in detail in steps 603 to 609 below.

For example, as shown in fig. 5, the voltage across the thermistor Rt is collected by an Analog-to-Digital Converter (ADC) on the main board (not shown) of the mobile phone 100, the collected voltage value is converted into a Digital signal, and then the processor 110 determines the temperature of the battery 142 by collecting the Digital signal output by the ADC. Please refer to the description of step 401, which is not repeated herein.

Step 602: it is determined to which temperature zone the temperature of battery 142 belongs.

Note that, when charging the battery 142 of the mobile phone 100, the temperature of the battery 142 may be different depending on the environment in which the mobile phone 100 is located. For example, when the user charges the battery 142 of the cellular phone 100 in summer, the indoor temperature is about 30 ℃. As another example, when the user charges the battery 142 of the mobile phone 100 in a cold winter season, the indoor temperature may be lower than 0 ℃. Since the charging characteristics of the battery 142 are different in different temperature intervals, it is necessary to determine to which temperature interval the temperature of the battery 142 belongs in order to ensure the charging safety of the battery 142 and improve the charging efficiency of the battery 142.

For example, the JEITA specification divides the temperature of the battery 142 into several chargeable temperature ranges (0 ℃ to 5 ℃), (5 ℃ to 10 ℃), (10 ℃ to 20 ℃), (20 ℃ to 35 ℃), (35 ℃ to 45 ℃), and (45 ℃ to 60 ℃) shown in Table 1 below. In addition, when the temperature of the battery 142 of the mobile phone 100 to which the charging scheme provided by the present application is applied is (-5 ℃ to 0 ℃), the battery 142 may be preheated and charged by, for example, the method involved in the flow shown in fig. 4A.

TABLE 1

In the embodiment shown in fig. 6A, when the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (-5 ℃ -0 ℃), the operation proceeds to step 603, and the high power consumption operation mode of the mobile phone 100 is turned on to preheat the battery 142.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (0 ℃ -5 ℃), the process proceeds to step 604a, the slow charging mode 1 of the mobile phone 100 is started, and the mobile phone 100 is still kept in the high power consumption operating mode.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (5 ℃ -10 ℃), the process proceeds to step 605a, the slow charging mode 2 of the mobile phone 100 is turned on, and the battery 142 does not need to be heated any more.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (10 ℃ -20 ℃), the process proceeds to step 606, the fast charging mode 1 of the mobile phone 100 is started, and the charging efficiency of the battery 142 is improved.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (20 ℃ -35 ℃), step 607 is executed to start the fast charging mode 2 of the mobile phone 100, so as to further improve the charging efficiency of the battery 142.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (35 ℃ -45 ℃), the process proceeds to step 608, and the fast charging mode 3 of the mobile phone 100 is started.

When the processor 110 of the mobile phone 100 determines that the temperature of the battery 142 is within the range of (45 ℃ -60 ℃), step 609 is performed, and the slow charging mode 3 of the mobile phone 100 is started to avoid the safety risk caused by the large charging current at high temperature and the rapid heat generation of the battery 142.

The above-mentioned slow charging mode 1 to slow charging mode 3, and fast charging mode 1 to fast charging mode 3 will be described in detail with reference to fig. 4A and table 1 when steps 603 to 609 are described below.

Step 603: the battery 142 is left in an uncharged state and the high power consumption operating mode is turned on to warm the battery 142.

I.e., when processor 110 determines that battery 142 is at a temperature in the range (-5 c to 0 c), the charging path for battery 142 is opened, in a manner similar to step 403 in the embodiment shown in fig. 4A described above. For example, the switch S0 of the first charge management module 141 is turned off, and no current flows into the battery 142. And the high power consumption operating mode of the mobile phone 100 is turned on to increase the heat generated by the high power consumption device of the mobile phone 100 in unit time, so as to rapidly increase the temperature, and to conduct the heat to the battery 142 to preheat the battery 142.

Step 604 a: and starting the slow charging mode 1 and switching to the normal working mode.

That is, after the processor 110 controls the mobile phone 100 to operate in the high power consumption operation mode, and the battery 142 is heated, if it is determined that the temperature of the battery 142 is increased to be within the range of (0 ℃ -5 ℃), the battery 142 can be charged with a smaller charging current Ibat. In the slow charging mode 1, the battery 142 is charged with a small charging current with a fixed magnitude, and the charging speed is slow.

For example, in some embodiments, when the processor 110 determines that the temperature of the battery 142 rises to the range of (0 ℃ -5 ℃), the switch S0 of the first charge management module 141 shown in fig. 3 is controlled to be closed, so that the charger 100 charges the battery 142 with a current of 0.1C (i.e. 0.4A) listed in table 1 above via the first charge management module 141. In addition, since the battery 142 may generate heat during charging, the heat generated by the battery 142 may be higher than the heat dissipated, and therefore, the battery 142 does not need to be heated by the heat transferred by the energy consuming device of the mobile phone 100, and the processor 110 controls the mobile phone 100 to switch from the high power consumption operating mode to the normal operating mode.

It is understood that the magnitude of the charging current Ibat corresponding to the slow charging mode 1 is related to the capacity of the battery 142, the referenced charging specification and the like when the temperature of the battery 142 is increased to be within the range of (0 ℃ to 5 ℃), and the magnitude of the charging current Ibat corresponding to the temperature of the battery 142 being within the range of (0 ℃ to 5 ℃) is not limited in the present application.

Step 605 a: and starting the slow charging mode 2 and keeping the normal working mode.

That is, after the processor 110 controls the mobile phone 100 to operate in the high power consumption operation mode, so as to warm the battery 142 and allow the battery 142 to be partially charged through the slow charging mode 1, if it is determined that the temperature of the battery 142 is raised to be in the range of (5 ℃ to 10 ℃), the battery 142 may be charged with Ibat, which is larger than the charging current value in the slow charging mode 1. In the slow charging mode 2, the battery 142 is charged with a large charging current with a fixed magnitude, and the charging speed is slow.

For example, in some embodiments, when the processor 110 determines that the temperature of the battery 142 rises to the range of (5 ℃ -10 ℃), it continues to control the switch S0 of the first charge management module 141 shown in fig. 3 to remain closed, so that the charger 100 supplies the battery 142 with a current of 0.3C (i.e., 1.2A) listed in table 1 above the first charge management module 141.

It is understood that, when the temperature of the battery 142 is increased to the range of (5 ℃ -10 ℃), the magnitude of the charging current Ibat corresponding to the slow charging mode 2 is related to the capacity of the battery 142, the reference charging specification and the like, and the magnitude of the charging current Ibat corresponding to the temperature of the battery 142 in the range of (5 ℃ -10 ℃) is not limited in the present application.

Step 606: and starting the quick charging mode 1 and keeping the normal working mode.

That is, after the processor 110 controls the battery 142 of the mobile phone 100 to continue charging in the slow charging mode 2, so that the temperature of the battery 142 is further increased, if it is determined that the temperature of the battery 142 is increased to be within the range of (10 ℃ -20 ℃), the battery 142 is charged with a larger charging current Ibat according to the charging characteristics of the battery 142. In the fast charge mode 1, the battery 142 is charged with a large charging current with a variable magnitude, and the charging speed is fast. Moreover, since the charging current of the battery 142 is relatively large, the heat generated by the battery 142 is higher than the heat dissipated, so that the battery 142 does not need to be heated by the heat transferred by the energy consumption device of the mobile phone 100, and the processor 110 controls the mobile phone 100 to be kept in the normal operating mode.

For example, in some embodiments, when the processor 110 determines that the temperature of the battery 142 rises to be within the range of (10 ℃ -20 ℃) (e.g. 15 ℃), the switch S0 of the first charge management module 141 shown in fig. 3 is continuously controlled to be closed, and the battery 142 is charged by the second charge management module 144, so that the charger 100 charges the voltage of the battery 142 to 4.15V with the charging current of 2C (8A) in table 1 above via the second charge management module 144, then charges the voltage of the battery 142 to 4.25V with the charging current of 1.5C (6A), then charges the voltage of the battery 142 to 4.3V with the charging current of 1.2C (4.8A), then charges the voltage of the battery 142 to 4.45V with the charging current of 1C (4A), and finally charges the voltage of the battery 142 to 4.48V with the charging current of 0.7C (2.8A), that is to fully charge the battery 142.

It is understood that, when the temperature of the battery 142 is increased to the range of (10 ℃ -20 ℃), the magnitude of the charging current Ibat corresponding to the fast charging mode 1 is related to the capacity of the battery 142, the reference charging specification and the like, and the magnitude of the charging current Ibat corresponding to the temperature of the battery 142 in the range of (10 ℃ -20 ℃) is not limited in the present application.

Step 607: and starting the quick charging mode 2 and keeping the normal working mode.

That is, after the processor 110 controls the battery 142 of the mobile phone 100 to continue charging in the fast charge mode 1, so as to further increase the temperature of the battery 142, if it is determined that the temperature of the battery 142 is increased to be within the range of (20 ℃ -35 ℃), the battery 142 is charged with a larger charging current Ibat according to the charging characteristics of the battery 142. The maximum charging current in the fast charging mode 2 is larger than the maximum charging current in the fast charging mode 1. Moreover, since the charging current of the battery 142 is relatively large, the heat generated by the battery 142 is higher than the heat dissipated, so that the battery 142 does not need to be heated by the heat transferred by the energy consumption device of the mobile phone 100, and the processor 110 controls the mobile phone 100 to be kept in the normal operating mode.

In some embodiments, the processor 110 determines that the temperature of the battery 142 rises to a temperature in the range of (20 ℃ -35 ℃) (e.g., 25 ℃), and then continues to control the switch S0 of the first charge management module 141 to close, thereby charging the battery 142 through the second charge management module 144. Assuming that the processor 110 determines that the voltage of the battery 142 is 4.25V, referring to table 1 above, the processor 110 controls the second charge management module 144 to output the charge current Ibat to the battery 142 to be 2C (8A), and after the voltage of the battery 142 is charged to 4.30V, the voltage of the battery 142 is charged to 4.38V with the charge current of 1.5C (6A), and then the voltage of the battery 142 is charged to 4.45V with the charge current of 1.2C (4.8A), and finally the voltage of the battery 142 is charged to 4.48V with the charge current of 1C (4A), that is, the battery 142 is fully charged.

It is understood that, when the temperature of the battery 142 is increased to the range of (20 ℃ -35 ℃), the magnitude of the charging current Ibat corresponding to the fast charging mode 2 is related to the capacity of the battery 142, the reference charging specification and the like, and the magnitude of the charging current Ibat corresponding to the temperature of the battery 142 in the range of (20 ℃ -35 ℃) is not limited in the present application.

Step 608: and starting the quick charging mode 3 and keeping the normal working mode.

That is, after the processor 110 controls the battery 142 of the mobile phone 100 to continue to be charged in the fast charge mode 2, so as to further increase the temperature of the battery 142, if it is determined that the temperature of the battery 142 is increased to be within the range of (35 ℃ -45 ℃), the battery 142 is still charged with a larger charging current Ibat according to the charging characteristics of the battery 142. Wherein, the charging current under the mode 3 of filling soon is unanimous with the charging current under the mode 2 of filling soon, and the difference only lies in: the off current in the fast charge mode 3 is different from the off current in the fast charge mode 2, for example, the off current in the fast charge mode 3 is 0.261C, and the off current in the fast charge mode 2 is 0.225C.

For example, in some embodiments, the processor 110 determines that the temperature of the battery 142 rises to a temperature in the range of (35 ℃ -45 ℃) (e.g., 40 ℃), and then continues to control the switch S0 of the first charge management module 141 to close, thereby charging the battery 142 via the second charge management module 144. Assuming that the processor 110 determines that the voltage of the battery 142 is 4.30V, referring to table 1 above, the processor 110 controls the second charge management module 144 to output a charge current Ibat of 1.5(6A) to the battery 142, charges the voltage of the battery 142 to 4.38V, then charges the voltage of the battery 142 to 4.45V with a charge current of 1.2C (4.8A), and then charges the voltage of the battery 142 to 4.48V with a charge current of 1C (4A), i.e., fully charges the battery 142.

It is understood that, when the temperature of the battery 142 is increased to the range of (35 ℃ -45 ℃), the magnitude of the charging current Ibat corresponding to the fast charging mode 3 is related to the capacity of the battery 142, the reference charging specification and the like, and the magnitude of the charging current Ibat corresponding to the temperature of the battery 142 in the range of (35 ℃ -45 ℃) is not limited in the present application.

Step 609: and starting the slow charging mode 3 and keeping the normal working mode.

That is, when the processor 110 determines that the temperature of the battery 142 rises to the range of (45 ℃ -60 ℃), since the temperature of the battery 142 is already high, the battery 142 can be charged with a fixed small charging current in order to avoid the safety risk caused by too fast heating of the battery 142. The slow charging mode 3 charges the battery 142 with a small charging current of a fixed magnitude, and the charging speed is slow.

For example, in some embodiments, the processor 110 determines that the temperature of the battery 142 rises to within a range (e.g., 50℃.) and charges the battery 142 via the first charge management module 141. Likewise, the magnitude of the charging current in the slow charging mode 3 is related to the capacity of the battery 142, the reference charging specification, and the like, and is not limited in this application.

It should be noted that, limited by the chemical characteristics of the battery, in order to avoid safety risks such as short circuit of the battery 142, the battery 142 is left in an uncharged state when the temperature of the battery 142 is low (e.g., lower than-5 ℃) or high (e.g., higher than 60 ℃).

Thus, when the battery 142 of the mobile phone 100 needs to be charged, the processor 110 of the mobile phone 100 determines whether to turn on the charging path of the battery 142 by detecting the temperature of the battery 142 in which temperature interval, and when the temperature of the battery 142 is low, for example, in the range of (-5 ℃ -0 ℃), by turning on the high power consumption operating mode of the mobile phone 100, the heat generated by the energy consumption device is conducted to the battery 142, so as to heat the battery 142, and the battery 142 enters the chargeable temperature range to charge the battery 142. And in different chargeable temperature ranges, the battery 142 is charged by different charging currents, which is helpful for improving the charging efficiency and avoiding the safety risk caused by using improper charging current in some temperature ranges.

Fig. 6B is a schematic flow chart illustrating a charging method of the mobile phone 100 at different ambient temperatures, wherein the execution subject of each step of the flow chart is still the processor 110 of the mobile phone 100. The flowchart shown in fig. 6B is similar to the flowchart shown in fig. 6A, and the processing flow shown in fig. 6B is such that when the temperature of the battery 142 is lower than 5 ℃, the battery 142 is placed in the uncharged state and the mobile phone 100 is placed in the high power consumption operation mode, and only when the temperature of the battery 142 is higher than 5 ℃, the battery 142 is placed in the charged state and the mobile phone 100 is switched from the high power consumption operation mode to the normal operation mode. In the processing flow shown in fig. 6A, when the temperature of the battery 142 is between-5 ℃ and 0 ℃, the battery 142 is in an uncharged state, and the mobile phone 100 is in a high power consumption operating mode. As long as the temperature of the battery 142 is higher than 0 ℃, even if the battery 142 is in a charged state, and the cellular phone 100 is switched from the high power consumption operation mode to the normal operation mode.

Each step in the flowchart shown in fig. 6B is similar to each step in the flowchart shown in fig. 6A, and only the steps 604B and 605B in the flowchart shown in fig. 6B that are different from those in fig. 6A are described below, specifically, as shown in fig. 6B, the steps 604B and 605B are as follows:

step 604 b: the battery is in an uncharged state and a high power consumption working mode is maintained.

That is, after the processor 110 controls the mobile phone 100 to operate in the high power consumption operating mode, if it is determined that the temperature of the battery 142 rises to the range of (0 ℃ -5 ℃), in order to avoid the situation that the charging efficiency of the battery 142 is low and the electric quantity of the battery 142 is low when the battery 142 is charged, and the electric quantity of the battery 142 is consumed too fast in the high power consumption operating mode, so that the electric quantity of the battery 142 is rapidly exhausted, the battery 142 is still in the uncharged state (for example, the switch S0 of the first charging management module 141 is in the off state), and the high power consumption mode is continuously maintained, so that the battery 142 is continuously heated.

Step 605 b: and starting the slow charging mode 2, and switching from the high-power-consumption working mode to the normal working mode.

That is, after the processor 110 heats the battery 142 by controlling the mobile phone 100 to operate in the high power consumption operation mode, if it is determined that the temperature of the battery 142 rises to the range of (5 ℃ -10 ℃), the switch S0 of the first charging management module 141 may be closed, and the battery 142 may be charged through the first charging management module 141. For example, in some embodiments, when the processor 110 determines that the temperature of the battery 142 rises to the range of (5 ℃ -10 ℃), it continues to control the switch S0 of the first charge management module 141 to close as shown in fig. 3, so that the charger 100 supplies the battery 142 with a current of 0.3C (i.e. 1.2A) listed in table 1 above the first charge management module 141.

In addition, since the battery 142 is already in a charged state when the temperature of the battery 142 rises to the range of (5 ℃ to 10 ℃), the battery 142 generates heat during charging, and thus, the high power consumption mode may not be employed any more to raise the temperature of the battery 142.

Fig. 7 shows a hardware structure diagram of the mobile phone 10 according to an embodiment of the present application.

The mobile phone 100 can execute the charging method provided by the embodiment of the application. In fig. 7, similar components have the same reference numerals. As shown in fig. 7, the mobile phone 100 may include a processor 110, a memory 180, a camera 170, a mobile communication module 130, a wireless communication module 120, a sensor module 190, an audio module 150, an interface module 160, a power module 140, a display screen 102, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the mobile phone 100. In other embodiments of the present application, the handset 100 may include more or fewer components than shown, or some components may be combined, some components may be separated, or a different arrangement of components may be used. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The Processor 110 may include one or more Processing units, for example, a Processing module or a Processing circuit that may include a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Digital Signal Processor (DSP), a Microprocessor (MCU), an Artificial Intelligence (AI) Processor, or a Programmable logic device (FPGA), among others. The different processing units may be separate devices or may be integrated into one or more processors. For example, in some examples of the present application, the processor 110 may be configured to detect a temperature of the battery and then control the mobile phone 100 to execute a corresponding operation mode according to the detected temperature of the battery. For example, the processor 110 is configured to control the mobile phone 100 to start the high power consumption operating mode when it is determined that the temperature of the battery is lower than 0 ℃, and preheat the battery 142 by using heat generated by the energy consuming device, so that the battery enters a chargeable temperature range (for example, the temperature of the battery is higher than 0 ℃) and then is charged.

Memory 180 may be used to store data, software programs, and modules, and may be a Volatile Memory (Volatile Memory), such as a Random-Access Memory (RAM); or a Non-Volatile Memory (Non-Volatile Memory), such as a Read-Only Memory (ROM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, HDD) or a Solid-State Drive (SSD); or a combination of the above types of memories, or may be a removable storage medium such as a Secure Digital (SD) memory card. In particular, memory 180 may include a program storage area 1801 and a data storage area 1802. The program storage area 1801 may store therein a program code, which is used to enable the processor 110 to execute the charging method provided by the embodiment of the present application by executing the program code.

The power module 140 may include a power supply, power management components, and the like. The power source may be a battery. The power management component is used for managing the charging of the power supply and the power supply of the power supply to other modules. For example, in some embodiments, the power management component includes a first charging management module 141, a second charging management module 144, a wireless charging module 143, and the like as shown in fig. 3.

The mobile communication module 130 may include, but is not limited to, an antenna, a power amplifier, a filter, a Low Noise Amplifier (LNA), and the like. The mobile communication module 130 can provide a solution including wireless communication of 2G/3G/4G/5G and the like applied to the handset 100. The mobile communication module 130 may receive electromagnetic waves from the antenna, filter, amplify, etc. the received electromagnetic waves, and transmit the electromagnetic waves to the modem processor for demodulation. The mobile communication module 130 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 130 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 130 may be disposed in the same device as at least some of the modules of the processor 110.

The wireless communication module 120 may include an antenna, and implement transceiving of electromagnetic waves via the antenna. The Wireless Communication module 120 may provide solutions for Wireless Communication applied to the mobile phone 100, including Wireless Local Area Networks (WLANs) (e.g., Wireless Fidelity (Wi-Fi) network), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The handset 100 may communicate with a network and other devices via wireless communication techniques.

In some embodiments, the mobile communication module 130 and the wireless communication module 120 of the handset 100 may also be located in the same module.

The camera 170 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element converts the optical Signal into an electrical Signal, and then transmits the electrical Signal to an ISP (Image Signal Processor) to be converted into a digital Image Signal. The mobile phone 100 can implement a shooting function through an ISP, a camera 170, a video codec, a GPU (graphics Processing Unit), a display screen 102, an application processor, and the like.

The display screen 102 includes a display panel. The Display panel may be a Liquid Crystal Display (LCD), an Organic Light-emitting Diode (OLED), an Active matrix Organic Light-emitting Diode (Active-matrix Organic Light-emitting Diode, AMOLED), a flexible Light-emitting Diode (FLED), a Mini LED, a Micro OLED, a Quantum Dot Light-emitting Diode (QLED), or the like. For example, the display screen 102 is used to display the charging condition of the mobile phone 100.

The sensor module 190 may include a proximity light sensor, a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

The audio module 150 may convert digital audio information into an analog audio signal output or convert an analog audio input into a digital audio signal. The audio module 150 may also be used to encode and decode audio signals. In some embodiments, the audio module 150 may be disposed in the processor 110, or some functional modules of the audio module 150 may be disposed in the processor 110. In some embodiments, audio module 150 may include speakers, an earpiece, a microphone, and a headphone interface.

The interface Module 160 includes an external memory interface, a Universal Serial Bus (USB) interface, a Subscriber Identity Module (SIM) card interface, and the like. The external memory interface may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the mobile phone 100. The external memory card communicates with the processor 110 through an external memory interface to implement a data storage function. The usb interface is used for the handset 100 to communicate with other handsets. For example, in some embodiments, when the cell phone 100 is charged using a wired charger, the cell phone 100 is connected to the wired charger through a USB interface. The SIM card interface is used to communicate with a SIM card attached to the handset 100, for example to read a telephone number stored in the SIM card or to write a telephone number into the SIM card.

In some embodiments, the handset 100 also includes keys, motors, indicators, and the like. The keys may include a volume key, an on/off key, and the like. The motor is used to create a vibration effect to the handpiece 100. The indicators may include laser indicators, radio frequency indicators, LED indicators, and the like.

An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium includes computer instructions, and when the computer instructions are run on the electronic device, the electronic device is caused to execute the charging method of the mobile phone 100 in the foregoing method embodiment.

The embodiment of the present application further provides a computer program product, which when running on a computer, causes the computer to execute the charging method of the mobile phone 100 in the above method embodiment.

Embodiments of the mechanisms disclosed herein may be implemented in hardware, software, firmware, or a combination of these implementations. Embodiments of the application may be implemented as computer programs or program code executing on programmable systems comprising at least one processor, a storage system (including volatile and non-volatile memory and/or storage elements), at least one input device, and at least one output device.

Program code may be applied to input instructions to perform the functions described herein and generate output information. The output information may be applied to one or more output devices in a known manner. For purposes of this Application, a processing system includes any system having a Processor such as, for example, a Digital Signal Processor (DSP), a microcontroller, an Application Specific Integrated Circuit (ASIC), or a microprocessor.

The program code may be implemented in a high level procedural or object oriented programming language to communicate with a processing system. The program code can also be implemented in assembly or machine language, if desired. Indeed, the mechanisms described in this application are not limited in scope to any particular programming language. In any case, the language may be a compiled or interpreted language.

In some cases, the disclosed embodiments may be implemented in hardware, firmware, software, or any combination thereof. The disclosed embodiments may also be implemented as instructions carried by or stored on one or more transitory or non-transitory machine-readable (e.g., computer-readable) storage media, which may be read and executed by one or more processors. For example, the instructions may be distributed via a network or via other computer readable media. Thus, a machine-readable medium may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computer), including, but not limited to, floppy diskettes, optical disks, Read-Only memories (CD-ROMs), magneto-optical disks, Read-Only memories (ROMs), Random Access Memories (RAMs), Erasable Programmable Read-Only memories (EPROMs), Electrically Erasable Programmable Read-Only memories (EEPROMs), magnetic or optical cards, flash Memory, or tangible machine-readable memories for transmitting information (e.g., carrier waves, infrared digital signals, etc.) using the Internet to transmit information in an electrical, optical, acoustical or other form of propagated signals. Thus, a machine-readable medium includes any type of machine-readable medium suitable for storing or transmitting electronic instructions or information in a form readable by a machine (e.g., a computer).

In the drawings, some features of the structures or methods may be shown in a particular arrangement and/or order. However, it is to be understood that such specific arrangement and/or ordering may not be required. Rather, in some embodiments, the features may be arranged in a manner and/or order different from that shown in the illustrative figures. In addition, the inclusion of a structural or methodical feature in a particular figure is not meant to imply that such feature is required in all embodiments, and in some embodiments, may not be included or may be combined with other features.

It should be noted that, in the embodiments of the apparatuses in the present application, each unit/module is a logical unit/module, and physically, one logical unit/module may be one physical unit/module, or may be a part of one physical unit/module, and may also be implemented by a combination of multiple physical units/modules, where the physical implementation manner of the logical unit/module itself is not the most important, and the combination of the functions implemented by the logical unit/module is the key to solve the technical problem provided by the present application. Furthermore, in order to highlight the innovative part of the present application, the above-mentioned device embodiments of the present application do not introduce units/modules which are not so closely related to solve the technical problems presented in the present application, which does not indicate that no other units/modules exist in the above-mentioned device embodiments.

It is noted that, in the examples and descriptions of this patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

While the present application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present application.

Claims

1. A charging method applied to electronic equipment is characterized by comprising the following steps:

collecting the battery temperature of the electronic equipment;

under the condition that the battery temperature is determined to be lower than a set temperature threshold value, controlling the battery to be in an uncharged state, and increasing the battery temperature by controlling the running state of partial devices in the electronic equipment;

controlling the battery to be in a charging state if it is determined that the battery temperature is higher than the set temperature threshold.

2. The method of claim 1, wherein the controlling the battery to be in an uncharged state and increasing the battery temperature by controlling an operation state of a part of devices in the electronic device in case that the battery temperature is determined to be lower than a set temperature threshold value comprises:

in the case where it is determined that the battery temperature is higher than a first temperature threshold and lower than the set temperature threshold, the battery is controlled to be in an uncharged state, and the battery temperature is increased by controlling an operation state of a part of devices in the electronic apparatus.

3. The method of claim 2, wherein the electronic device comprises a first charge management module and a second charge management module, and wherein the controlling the battery to be in an uncharged state comprises:

4. The method of claim 2, wherein the increasing the battery temperature by controlling the operating state of a portion of devices in the electronic device comprises:

controlling the partial device to switch from the first operating state to the second operating state, or

Controlling the partial device to operate in a second operation state under the condition that the partial device is not operated,

the battery temperature is increased by the heat generated by the part of the device in the second operation state,

wherein the power of the partial device in the second operating state is greater than the power of the partial device in the first operating state.

5. The method of claim 2, wherein the electronic device comprises a first charge management module and a second charge management module, and wherein the controlling the battery to be in the charging state if the battery temperature is determined to be higher than the set temperature threshold comprises:

in the case that the battery temperature is determined to be higher than the set temperature threshold and lower than a second temperature threshold, controlling the first charging management module to provide a first charging current for the battery and controlling the partial device to be in a first operation state; or

In the case that the battery temperature is determined to be higher than the second temperature threshold and lower than a third temperature threshold, controlling the first charge management module to provide a second charge current to the battery, wherein the second charge current is larger than the first charge current, and controlling the partial device to be in a first operation state; or

In the case that it is determined that the battery temperature is higher than the third temperature threshold and lower than a fourth temperature threshold, controlling the second charge management module to provide a third charge current to the battery, and controlling the partial device to be in a first operation state, wherein the third charge current is greater than the second charge current; or

In the event that it is determined that the battery temperature is above the fourth temperature threshold and below a fifth temperature threshold, controlling the second charge management module to provide a fourth charge current to the battery and controlling the portion of the device in a first operating state, wherein the fourth charge current is greater than the second charge current; or

In the case that it is determined that the battery temperature is higher than the fifth temperature threshold and lower than a sixth temperature threshold, controlling the second charge management module to provide a fifth charge current to the battery, and controlling the partial device to be in a first operation state, wherein the fifth charge current is greater than the second charge current; or

In a case where it is determined that the battery temperature is higher than the sixth temperature threshold and lower than a seventh temperature threshold, controlling the first charge management module to supply a sixth charge current to the battery, and controlling the partial device to be in a first operation state, wherein the sixth charge current is larger than the second charge current, and the sixth charge current is smaller than any one of the third charge current, the fourth charge current, and the fifth charge current.

6. The method of claim 5, further comprising:

controlling the battery to be in an uncharged state if it is determined that the battery temperature is higher than the seventh temperature threshold.

7. The method of claim 5, wherein the set temperature threshold is 0 ℃; the first temperature threshold is-5 ℃; the second temperature threshold is 5 ℃; the third temperature threshold is 10 ℃; the fourth temperature threshold is 20 ℃; the fifth temperature threshold is 35 ℃; the sixth temperature threshold is 45 ℃; the seventh temperature threshold is 60 ℃.

8. The method of claim 2, wherein the electronic device comprises a first charge management module and a second charge management module, and wherein the controlling the battery to be in the charging state if the battery temperature is determined to be higher than the set temperature threshold comprises:

In the case that it is determined that the battery temperature is higher than the second temperature threshold and lower than a third temperature threshold, controlling the second charge management module to provide a second charge current to the battery, and controlling the partial device to be in a first operation state, wherein the second charge current is greater than the first charge current; or

In the event that it is determined that the battery temperature is above the third temperature threshold and below a fourth temperature threshold, controlling the second charge management module to provide a third charge current to the battery and controlling the portion of the device in a first operating state, wherein the third charge current is greater than the first charge current; or

In the event that it is determined that the battery temperature is above the fourth temperature threshold and below a fifth temperature threshold, controlling the second charge management module to provide a fourth charge current to the battery and controlling the portion of the device in a first operating state, wherein the fourth charge current is greater than the first charge current; or

In a case where it is determined that the battery temperature is higher than the fifth temperature threshold and lower than a sixth temperature threshold, controlling the first charge management module to supply a fifth charge current to the battery, and controlling the partial device to be in a first operation state, wherein the fifth charge current is greater than the first charge current, and the fifth charge current is greater than or less than any one of the second charge current, the third charge current, and the fourth charge current.

9. The method of claim 8, further comprising:

controlling the battery to be in an uncharged state if it is determined that the battery temperature is higher than the sixth temperature threshold.

10. The method of claim 8, wherein the set temperature threshold is 5 ℃; the first temperature threshold is-5 ℃; the second temperature threshold is 10 ℃; the third temperature threshold is 20 ℃; the fourth temperature threshold is 35 ℃; the fifth temperature threshold is 45 ℃; the sixth temperature threshold is 60 ℃.

11. The method of any one of claims 1 to 10, wherein the battery comprises a thermistor, and wherein the collecting the battery temperature of the electronic device comprises:

collecting voltages at two ends of the thermistor, and determining the temperature of the battery based on the collected voltages.

12. The method of claim 11, wherein the battery comprises cells and the battery temperature is a cell temperature.

13. A computer-readable storage medium having stored thereon instructions that, when executed on an electronic device, cause the electronic device to perform the method of any of claims 1-12.

14. A computer program product, characterized in that it comprises instructions for implementing the method according to any one of claims 1-12.

15. An electronic device, comprising:

A processor for performing the method of any one of claims 1-12 when the instructions are executed by one or more processors.