CN110838740A - Charging current control method and device - Google Patents
Charging current control method and device Download PDFInfo
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- CN110838740A CN110838740A CN201810941618.6A CN201810941618A CN110838740A CN 110838740 A CN110838740 A CN 110838740A CN 201810941618 A CN201810941618 A CN 201810941618A CN 110838740 A CN110838740 A CN 110838740A
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Abstract
The invention discloses a method and a device for controlling charging current, wherein the method comprises the following steps: the method comprises the steps that in the process of quickly charging a battery of the terminal equipment at a first current value, a temperature value of the battery and a mainboard temperature value of the terminal equipment are obtained, wherein the mainboard temperature value can represent a complete machine temperature value of the terminal equipment; judging whether the temperature value of the battery is within a quick charge safety temperature range or not; if so, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery with the second current value. The method is used for solving the technical problem that the safety of battery charging cannot be guaranteed while the temperature of equipment is reduced in the existing scheme for charging the battery of the terminal.
Description
Technical Field
The present invention relates to the field of charging technologies, and in particular, to a method and an apparatus for controlling a charging current.
Background
The existing quick charging of the battery aiming at the terminal equipment easily causes the temperature of the terminal equipment to be overhigh. Especially, during the process of filling and playing, the temperature rise (namely temperature rise) of the equipment is particularly prominent. For this reason, once the battery temperature exceeds a preset threshold during charging, the charging current is reduced, thereby reducing the temperature rise.
However, before the temperature of the equipment is reduced, the battery is still in a state of continuously charging at a higher temperature, so that the battery is easily damaged, the mobile phone with the battery is reduced, and even explosion occurs.
Therefore, the existing scheme for charging the battery of the terminal equipment can not ensure the charging safety of the battery while reducing the temperature of the equipment, and the charging performance of the terminal equipment is poor.
Disclosure of Invention
The embodiment of the invention provides a charging current control method and a charging current control device, which are used for solving the technical problem that the safety of battery charging cannot be ensured while the temperature of equipment is reduced in the conventional scheme aiming at the battery charging of a terminal.
In a first aspect, an embodiment of the present invention provides a method for controlling a charging current, including:
the method comprises the steps that in the process of quickly charging a battery of the terminal equipment at a first current value, a temperature value of the battery and a mainboard temperature value of the terminal equipment are obtained, wherein the mainboard temperature value can represent a complete machine temperature value of the terminal equipment;
judging whether the temperature value of the battery is within a quick charge safety temperature range or not;
if so, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery with the second current value.
In the technical scheme of the embodiment of the invention, in the process of rapidly charging the battery of the terminal equipment by using the first current value, firstly, the temperature value of the battery and the temperature value of the mainboard are obtained. And then, judging whether the temperature value of the battery is within the quick charge safe temperature range or not by acquiring the temperature value of the battery. The first current value for charging the battery is adjusted to be a second current value smaller than the first current value by obtaining a mainboard temperature value of the terminal device, and then the battery is charged through the second current value. That is, in the process of rapidly charging the battery, the battery temperature value and the motherboard temperature value are monitored, and when the battery temperature value is within the rapid charging safety temperature range (for example, 10 ℃ to 45 ℃), the charging current entering the battery is reduced according to the motherboard temperature value. Therefore, the temperature of the equipment is reduced while the safe charging of the battery is ensured. Meanwhile, the charging safety of the battery and the temperature rise of the equipment are considered, and the charging performance of the terminal equipment is improved.
Optionally, the adjusting the first current value for the battery charging to a second current value smaller than the first current value based on the motherboard temperature value includes:
judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
In the embodiment of the invention, if the temperature value of the main board is greater than the first preset temperature threshold value, the first current value for charging the battery is reduced to the second current value by the first preset current value. That is to say, when the battery is in the safe temperature range of fast filling, if the mainboard temperature value exceeds a first preset temperature threshold value, for example, 50 ℃ or 55 ℃, then reduce the first current value to the second current value of charging the battery at present to the condition that the mainboard temperature is too high has effectively been avoided taking place.
Optionally, after reducing the first current value for charging the battery by a first preset current value to the second current value, the method further comprises:
acquiring the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
and judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
In the embodiment of the invention, after the first current value for charging the battery is reduced to the second current value, the temperature value of the mainboard after the battery is charged for a preset time by the second current value is detected, so as to determine whether the charging current for the battery needs to be continuously adjusted, thereby ensuring that the temperature of the terminal equipment is always in a proper range and improving the charging performance of the terminal equipment.
Optionally, after determining whether the current temperature value of the motherboard is greater than a second preset temperature threshold, the method further includes:
if the current temperature value of the mainboard is not greater than the second preset temperature threshold value, increasing a second preset current value to a third current value aiming at the second current value of the battery charging, and charging the battery with the third current value, wherein the second preset current value is less than the first preset current value.
Optionally, after determining whether the temperature value of the battery is within the fast charge safety temperature range, the method further includes:
and if the temperature value of the battery is in the unsafe temperature range, stopping charging the battery.
In the embodiment of the invention, once the temperature value of the battery is detected not to be in the safe temperature range, namely, in the unsafe temperature range (for example, below 0 ℃ and above 55 ℃), the charging of the battery is stopped, so that the battery is prevented from being damaged, and the charging performance of the terminal equipment is improved.
Optionally, after determining whether the temperature value of the battery is within the fast charge safety temperature range, the method further includes:
and if the temperature value of the battery is within the slow charging safety temperature range, charging the battery by using a current value of 0.2C.
In a second aspect, an embodiment of the present invention further provides a device for controlling a charging current, including:
the terminal equipment comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining a temperature value of a battery and a mainboard temperature value of the terminal equipment in the process of rapidly charging the battery of the terminal equipment by using a first current value, and the mainboard temperature value can represent the complete machine temperature value of the terminal equipment;
the first judgment unit is used for judging whether the temperature value of the battery is within a quick charge safety temperature range or not;
and if the adjusting unit is used, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery by using the second current value.
Optionally, the adjusting unit is configured to:
judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
Optionally, after reducing the first current value for charging the battery by a first preset current value to the second current value, the apparatus further includes:
the second obtaining unit is used for obtaining the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
and the second judging unit is used for judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
Optionally, after the second determining unit determines whether the current temperature value of the motherboard is greater than a second preset temperature threshold, the adjusting unit is further configured to:
if the current temperature value of the mainboard is not greater than the second preset temperature threshold value, increasing a second preset current value to a third current value aiming at the second current value of the battery charging, and charging the battery with the third current value, wherein the second preset current value is less than the first preset current value.
Optionally, after the first determining unit determines whether the temperature value of the battery is within the fast charge safety temperature range, the adjusting unit is further configured to:
and if the temperature value of the battery is in the unsafe temperature range, stopping charging the battery.
Optionally, after the first determining unit determines whether the temperature value of the battery is within the fast charge safety temperature range, the adjusting unit is further configured to:
and if the temperature value of the battery is within the slow charging safety temperature range, charging the battery by using a current value of 0.2C.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a processor, and the processor is configured to implement the steps of the control method for charging current as described above when executing the computer program stored in the memory.
In a fourth aspect, the embodiment of the present invention further provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the control method of the charging current as described above.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a flowchart of a method for controlling a charging current according to an embodiment of the present invention;
fig. 2 is a flowchart of a method of step S103 in a method for controlling a charging current according to an embodiment of the present invention;
fig. 3 is a flowchart of a method after step S202 in a method for controlling a charging current according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a charging current control device according to an embodiment of the present invention.
Detailed Description
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the embodiment of the present invention, the control method may be applied to a terminal device provided with a battery and a main board. The mobile terminal mentioned in the embodiment of the present invention includes but is not limited to: electronic devices such as smart phones (e.g., android phones and IOS phones), tablet computers, notebook computers, palmtop computers, wearable smart devices, and the like, and may also be other electronic devices, which are not necessarily illustrated herein.
In order to better understand the technical solutions of the present invention, the technical solutions of the present invention are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the embodiments of the present invention are detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the invention provides a method for controlling a charging current, including:
s101: the method comprises the steps that in the process of quickly charging a battery of the terminal equipment at a first current value, a temperature value of the battery and a mainboard temperature value of the terminal equipment are obtained, wherein the mainboard temperature value can represent a complete machine temperature value of the terminal equipment;
s102: judging whether the temperature value of the battery is within a quick charge safety temperature range or not;
s103: if so, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery with the second current value.
In the specific implementation process, the specific implementation process from step S101 to step S103 is as follows:
firstly, in the process of rapidly charging the battery of the terminal equipment by using a first current value, acquiring a temperature value of the battery and a mainboard temperature value of the terminal equipment, wherein the mainboard temperature value can represent the complete machine temperature value of the terminal equipment, so that the mainboard temperature value of the terminal equipment can be approximate to the complete machine temperature value of the equipment. And then, judging the temperature value of the battery, and adjusting a first current value for charging the battery according to the temperature value of the main board when the temperature value of the battery is within the quick-charging safety temperature range, so that the temperature rise condition of the terminal equipment is limited within a proper range. In the implementation process, the fast charge safe temperature range is used to represent the temperature range in which the battery should be located when the battery can be rapidly charged, and the temperature range may be any temperature range set by a person skilled in the art according to different battery performances. That is to say, in the process of rapidly charging the battery of the terminal device, the battery temperature value and the mainboard temperature value are monitored. When the temperature value of the battery is within the quick charging safety temperature range such as 10-45 ℃, the first current value for charging the battery is adjusted according to the actual situation of the temperature value of the main board, and is reduced to the second current value. Therefore, the temperature rise of the equipment is effectively controlled while the safe charging of the battery is ensured, the charging safety of the battery and the temperature rise of the equipment are considered, and the charging performance of the terminal equipment is improved.
In the embodiment of the present invention, in order to effectively control the temperature rise of the device while ensuring the safety of battery charging, please refer to fig. 2, step S103: if so, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery with the second current value, including:
s201: judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
s202: if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
In the specific implementation process, the specific implementation process from step S201 to step S202 is as follows:
first, it is determined whether the temperature value of the motherboard is greater than a first preset temperature threshold, where the first preset temperature threshold may be a temperature threshold preset by a person skilled in the art according to actual needs, and may be, for example, 50 ℃ or 55 ℃. The set first preset temperature threshold may be specifically set for different types of devices and different types of batteries, and will not be described herein again. Then, if the temperature value of the main board is larger than a first preset temperature threshold value, the first current value for charging the battery is reduced to a second current value by a first preset current value. That is to say, when the battery is in the quick-charging safety temperature range, the safety of battery charging is ensured, and when the temperature value of the main board exceeds the first preset temperature threshold value, the first current value for charging the battery is reduced to the second current value, so that the terminal device is controlled to charge the battery with the second current value smaller than the first current value. The first preset current value may be a current value set by a person skilled in the art according to actual needs. For example, when the first current value is 3A, the first preset temperature value is 50 ℃, and the first preset current value is 200mA, the second current value is 2800 mA. Therefore, the temperature of the mainboard is effectively reduced, and the phenomenon that the temperature of the terminal equipment is too high is avoided.
In the embodiment of the present invention, referring to fig. 3, in step S202: if yes, after reducing the first current value for charging the battery by a first preset current value to the second current value, the method further includes:
s301: acquiring the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
s302: and judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
In the specific implementation process, the specific implementation process from step S301 to step S302 is as follows:
firstly, the current temperature value of the mainboard is obtained after the battery is charged for a preset time by the second current value. The preset time period may be a time period set according to experience, for example, 3min, 5min, and the like. For example, after the battery is charged for 3min by the current value of 2800mA, the current temperature value of the main board is detected and obtained. And then, judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value. That is to say, detect the present temperature value of mainboard after the charging current to the battery reduces earlier to this whether the degree that judges charging current reduces is suitable, thereby control charging current and mainboard temperature in comparatively reasonable within range all the time. Since the current for the battery is previously reduced from the first current value to the second current value, the amount of heat generated on the main board when the battery is charged by the second current value is often smaller than the amount of heat generated when the battery is charged by the first current value. Therefore, the second preset temperature threshold may be smaller than the first preset temperature threshold, or may be equal to the first preset temperature threshold, for example, the first preset temperature threshold and the second preset temperature threshold are both 48 ℃. In the specific implementation process, the temperature value of the mainboard after the battery is charged for a preset time is detected by the second current value, so that whether the charging current for the battery needs to be adjusted continuously can be determined. For example, if the temperature of the motherboard is 49 ℃ after the battery is charged for 3min by the second current value, the charging current for the battery needs to be continuously reduced on the basis of 2800 mA. For example, the current is reduced by 200mA to 2600mA, and then the battery is charged with a charging current of 2600 mA. Of course, based on the same charging principle, the current temperature value of the mainboard can be continuously detected when the reduced charging current value is used for charging the battery for a preset time, so that the terminal equipment is used for safely charging the battery, the temperature rise of the equipment is always controlled within a reasonable range, and the charging performance of the terminal equipment is improved.
In the embodiment of the present invention, in step S302: after judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, the method further comprises the following steps:
if the current temperature value of the mainboard is not greater than the second preset temperature threshold value, increasing a second preset current value to a third current value aiming at the second current value of the battery charging, and charging the battery with the third current value, wherein the second preset current value is less than the first preset current value.
In the implementation process, in order to ensure the charging performance of the terminal, the charging current is prevented from being reduced to an unreasonable range. If the current temperature value of the main board is not greater than the second preset temperature threshold value, the second preset current value for charging the battery is increased to a third current value, and then the battery is charged by the third current value, wherein the second preset current value is smaller than the first preset current value. As a specific example, when the current temperature value of the motherboard is 20 ℃ which is much lower than the second preset temperature threshold value of 50 ℃, 100mA may be increased to 2900mA based on the second current value of 2800mA, and then the battery is charged with 2900 mA. Therefore, the technical scheme of the embodiment of the invention can adjust the charging current for the battery in real time according to the actual situation, always control the charging current in a safe charging range, and effectively limit the temperature rise of the equipment.
In the embodiment of the present invention, in order to improve the charging performance of the terminal device, in step S102: after judging whether the temperature value of the battery is within the quick charge safe temperature range, the method further comprises the following steps:
and if the temperature value of the battery is in the unsafe temperature range, stopping charging the battery.
In the implementation process, once the temperature value of the battery is detected to be out of the safe temperature range and in the unsafe temperature range, the charging of the battery is stopped. For example, when the safe temperature range is 0 ℃ to 55 ℃, the unsafe temperature range is a temperature range of 0 ℃ or less or 55 ℃ or more. Therefore, the battery is prevented from being damaged by charging, and the charging performance of the terminal equipment is improved.
In the embodiment of the present invention, in order to improve the charging performance of the terminal device, in step S102: after judging whether the temperature value of the battery is within the quick charge safe temperature range, the method further comprises the following steps:
and if the temperature value of the battery is within the slow charging safety temperature range, charging the battery by using a current value of 0.2C.
For example, when the slow charging safety temperature range is 0-10 ℃ or 45-55 ℃, once the temperature value of the battery is detected to be 0-10 ℃ or 45-55 ℃, the battery is charged by adopting the current value of 0.2C. For example, when the battery capacity is 3000mAh, the current value of 0.2C is 600 mA.
Based on the same inventive concept, referring to fig. 4, an embodiment of the present invention further provides a control apparatus for a charging current, including:
the terminal equipment comprises a first obtaining unit 10, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining a temperature value of a battery of the terminal equipment and a mainboard temperature value of the terminal equipment in the process of rapidly charging the battery of the terminal equipment by using a first current value, and the mainboard temperature value can represent a complete machine temperature value of the terminal equipment;
the first judging unit 20 is configured to judge whether the temperature value of the battery is within a fast charge safety temperature range;
if the first current value is greater than the first current value, the adjusting unit 30 adjusts the first current value for charging the battery to a second current value smaller than the first current value based on the motherboard temperature value, and charges the battery with the second current value.
In the embodiment of the present invention, the adjusting unit 30 is configured to:
judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
In an embodiment of the present invention, after decreasing the first current value for charging the battery by a first preset current value to the second current value, the apparatus further includes:
the second obtaining unit is used for obtaining the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
and the second judging unit is used for judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
In this embodiment of the present invention, after the second determining unit determines whether the current temperature value of the motherboard is greater than a second preset temperature threshold, the adjusting unit 30 is further configured to:
if the current temperature value of the mainboard is not greater than the second preset temperature threshold value, increasing a second preset current value to a third current value aiming at the second current value of the battery charging, and charging the battery with the third current value, wherein the second preset current value is less than the first preset current value.
In the embodiment of the present invention, after the first determining unit 20 determines whether the temperature value of the battery is within the fast charge safe temperature range, the adjusting unit 30 is further configured to:
and if the temperature value of the battery is in the unsafe temperature range, stopping charging the battery.
Optionally, after the first determining unit 20 determines whether the temperature value of the battery is within the fast charge safe temperature range, the adjusting unit 30 is further configured to:
and if the temperature value of the battery is within the slow charging safety temperature range, charging the battery by using a current value of 0.2C.
Based on the same inventive concept, an embodiment of the present invention provides a terminal device, where the terminal device may be a mobile phone, a tablet, or the like, and the terminal device may include: and the processor is used for realizing the steps of the control method of the charging current provided by the embodiment of the invention when executing the computer program stored in the memory.
Optionally, the processor may be specifically a central processing unit, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits for controlling program execution.
Optionally, the terminal device further includes a Memory connected to the processor, where the Memory may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory is used for storing data required by the processor during operation, that is, storing instructions executable by the processor, and the processor executes the method shown in fig. 1 by executing the instructions stored in the memory. Wherein, the number of the memories is one or more. Wherein the memory is not an optional functional module.
The physical devices corresponding to the first obtaining unit 10, the first judging unit 20 and the adjusting unit 30 may be the aforementioned processors. The terminal device may be configured to perform the method provided by the embodiment shown in fig. 1. Therefore, regarding the functions that can be realized by each functional module in the device, reference may be made to the corresponding description in the embodiment shown in fig. 1, which is not repeated herein.
Embodiments of the present invention also provide a readable storage medium, where the readable storage medium stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the method described in fig. 1.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a Universal Serial Bus flash disk (usb flash disk), a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for controlling a charging current, comprising:
the method comprises the steps that in the process of quickly charging a battery of the terminal equipment at a first current value, a temperature value of the battery and a mainboard temperature value of the terminal equipment are obtained, wherein the mainboard temperature value can represent a complete machine temperature value of the terminal equipment;
judging whether the temperature value of the battery is within a quick charge safety temperature range or not;
if so, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery with the second current value.
2. The method of claim 1, wherein the adjusting the first current value for the battery charge to a second current value that is less than the first current value based on the motherboard temperature value comprises:
judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
3. The method of claim 2, wherein after decreasing the first current value for the battery charge by a first preset current value to the second current value, the method further comprises:
acquiring the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
and judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
4. The method of claim 3, wherein after determining whether the current temperature value of the motherboard is greater than a second preset temperature threshold, the method further comprises:
if the current temperature value of the mainboard is not greater than the second preset temperature threshold value, increasing a second preset current value to a third current value aiming at the second current value of the battery charging, and charging the battery with the third current value, wherein the second preset current value is less than the first preset current value.
5. The method of claim 1, wherein after determining whether the temperature value of the battery is within a fast charge safe temperature range, the method further comprises:
and if the temperature value of the battery is in the unsafe temperature range, stopping charging the battery.
6. A control device for a charging current, comprising:
the terminal equipment comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining a temperature value of a battery and a mainboard temperature value of the terminal equipment in the process of rapidly charging the battery of the terminal equipment by using a first current value, and the mainboard temperature value can represent the complete machine temperature value of the terminal equipment;
the first judgment unit is used for judging whether the temperature value of the battery is within a quick charge safety temperature range or not;
and if the adjusting unit is used, adjusting the first current value for charging the battery to a second current value smaller than the first current value based on the mainboard temperature value, and charging the battery by using the second current value.
7. The apparatus of claim 6, wherein the adjustment unit is to:
judging whether the temperature value of the mainboard is greater than a first preset temperature threshold value or not;
if so, reducing the first current value for charging the battery to a first preset current value to a second current value.
8. The apparatus of claim 7, wherein after decreasing the first current value for charging the battery by a first preset current value to the second current value, the apparatus further comprises:
the second obtaining unit is used for obtaining the current temperature value of the mainboard after the battery is charged for a preset time by the second current value;
and the second judging unit is used for judging whether the current temperature value of the mainboard is greater than a second preset temperature threshold value, wherein the second preset temperature threshold value is not greater than the first preset temperature threshold value.
9. A terminal device, characterized in that it comprises a processor for implementing the steps of the method of controlling the charging current according to any one of claims 1-5 when executing a computer program stored in a memory.
10. A readable storage medium having stored thereon a computer program, characterized in that: the computer program, when being executed by a processor, realizes the steps of the method of controlling a charging current according to any one of claims 1-5.
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| CN110838740B (en) | 2021-11-09 |
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