CN108390117B - Charging method and mobile terminal - Google Patents
Charging method and mobile terminal Download PDFInfo
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- CN108390117B CN108390117B CN201810211005.7A CN201810211005A CN108390117B CN 108390117 B CN108390117 B CN 108390117B CN 201810211005 A CN201810211005 A CN 201810211005A CN 108390117 B CN108390117 B CN 108390117B
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a charging method and a mobile terminal, and relates to the technical field of mobile terminals, wherein the method comprises the following steps: the method comprises the steps of detecting the temperature at a charging interface of the mobile terminal, judging whether the temperature at the charging interface is larger than a temperature threshold value or not, and sending an adjusting signal to a charger when the temperature at the charging interface is larger than the temperature threshold value so that the charger can adjust output charging current. Through the temperature that detects the kneck that charges to judge whether the temperature of this kneck that charges is greater than the temperature threshold value, when the temperature of the kneck that charges is greater than the temperature threshold value, then send the adjustment signal to the charger, make the charger can adjust the charging current of output, thereby control charging current descends, avoid charging the kneck and continue to produce a large amount of heats, can in time reduce the temperature of the kneck that charges, can avoid causing the safety problem because the high temperature of the kneck that charges, the security that mobile terminal charges has been improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile terminals, in particular to a charging method and a mobile terminal.
Background
Along with the continuous development of the mobile terminal and the appearance of the graphene battery, the mobile terminal can be charged through the graphene by adopting large current, so that the charging time is greatly shortened, and the charging efficiency of the mobile terminal is improved.
In the related art, after the charger is connected with the charging interface of the mobile terminal, the charger can charge the graphene battery by adopting a large current. However, when a foreign matter exists in the charging interface of the mobile terminal or the charging interface deforms, the impedance between the charging interface and the charger becomes large, and if the charging interface is still charged by adopting a large current, the temperature of the charging interface is too high, and potential safety hazards appear.
Therefore, in order to avoid the safety problem caused by the excessively high temperature at the charging interface, a method for charging according to the temperature at the charging interface is urgently needed.
Disclosure of Invention
The embodiment of the invention provides a charging method and a mobile terminal, and aims to solve the problem that a charging interface of the mobile terminal generates a large amount of heat and has potential safety hazards.
In order to solve the technical problem, the invention is realized as follows: a charging method is applied to a mobile terminal, and comprises the following steps:
detecting the temperature at a charging interface of the mobile terminal;
judging whether the temperature at the charging interface is greater than a temperature threshold value or not;
and when the temperature at the charging interface is greater than the temperature threshold value, sending an adjusting signal to a charger so that the charger adjusts the output charging current.
In a first aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes:
the detection module is used for detecting the temperature at a charging interface of the mobile terminal;
the judging module is used for judging whether the temperature at the charging interface is greater than a temperature threshold value or not;
and the sending module is used for sending an adjusting signal to a charger when the temperature at the charging interface is greater than the temperature threshold value, so that the charger adjusts the output charging current.
In a second aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the charging method according to any one of the charging methods described above.
In a third aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and when executed by a processor, the computer program implements the steps of the charging method according to any one of the charging methods described above.
In the embodiment of the invention, the temperature at the charging interface is detected, whether the temperature at the charging interface is greater than the temperature threshold value is judged, and when the temperature at the charging interface is greater than the temperature threshold value, an adjusting signal is sent to the charger, so that the charger can adjust the output charging current, the charging current is controlled to be reduced, a large amount of heat is prevented from being continuously generated at the charging interface, the temperature at the charging interface can be timely reduced, the safety problem caused by overhigh temperature at the charging interface can be avoided, and the charging safety of the mobile terminal is improved.
Drawings
Fig. 1 is a schematic diagram of an implementation environment related to a charging method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps of a charging method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of a charging method according to an embodiment of the present invention;
fig. 4 is a block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a hardware structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram illustrating an implementation environment related to a charging method according to an embodiment of the present invention, and as shown in fig. 1, the implementation environment may include a mobile terminal 110 and a charger 120.
The mobile terminal 110 may include a processor 1101, a thermocouple circuit 1102, a charging interface 1103, a signal amplification circuit 1104, an analog-to-digital conversion circuit 1105 and a signal switch 1106; the charger 120 may include a charging circuit 1201 and an over-temperature protection circuit 1202. The charger 120 may be connected to the charging interface 1101 by a USB cable, thereby connecting the charger 120 with the mobile terminal 110 so that the charger 120 charges the mobile terminal 110.
Specifically, the thermocouple circuit 1102 may obtain the temperature at the charging interface 1103 through the sensing end, generate the thermal electromotive force according to the temperature difference between the temperature detected by the sensing end and the temperature detected by the reference end, and finally send the analog voltage parameter corresponding to the thermal electromotive force to the processor 1101.
In the sending process, the digital-to-analog conversion circuit 1105 may convert the analog voltage parameter corresponding to the thermal electromotive force into a digital voltage parameter, and finally send the converted digital voltage parameter to the processor 1101.
The processor 1101 may determine the temperature at the charging interface 1103 according to the digital voltage parameter and a preset corresponding relationship, and determine whether the temperature at the charging interface 1103 is greater than a temperature threshold. When the temperature at the charging interface 1103 is greater than the temperature threshold, the processor 1101 may control the signal switch 1106 to close, so that the circuit between the thermocouple circuit 1102 and the charger 120 is conducted.
When the circuit between the thermocouple circuit 1102 and the charger 120 is turned on, the thermocouple circuit 1102 may transmit the generated thermoelectromotive force as an adjustment signal to the charger 120, and during the transmission, the signal amplification circuit 1104 may amplify the adjustment signal to transmit the amplified adjustment signal to the charger 120.
The charger 120 may receive the adjustment signal sent by the mobile terminal 110, and send the adjustment signal to the charging circuit 1201 and the over-temperature protection circuit 1202 respectively:
the charging circuit 1201 can adjust the duty ratio of the charging current according to the analog voltage parameter corresponding to the adjustment signal, that is, the on-time of the switching tube in the charging circuit 1201 is reduced, so that the discharging time of the capacitor in the charging circuit 1201 is reduced, and the charging current output by the charging circuit 1201 is reduced.
The over-temperature protection circuit 1202 may detect an analog voltage parameter corresponding to the adjustment signal, and determine whether the analog voltage parameter is greater than a voltage threshold. When the analog voltage parameter corresponding to the adjustment signal is greater than the voltage threshold, the over-temperature protection circuit 1202 may control the switching tube of the charging circuit 1201 to be turned off, so that the capacitor in the charging circuit 1201 stops discharging, and the charging circuit 1201 is controlled to stop outputting the charging current.
Referring to fig. 2, fig. 2 is a flowchart illustrating steps of a charging method according to an embodiment of the present invention, and as shown in fig. 2, the charging method is applied to a mobile terminal in the implementation environment shown in fig. 1, and includes the following steps:
In the charging process, in order to determine whether the temperature of a charging interface connected with the charger is too high in time and prevent the safety problem caused by the too high temperature of the charging interface, the mobile terminal can acquire the temperature of the charging interface in real time, so that in the subsequent step, the mobile terminal can control the magnitude of the charging current output by the charger according to the temperature of the charging interface.
Specifically, because the mobile terminal is provided with the thermocouple circuit including the induction end and the reference end, and the induction end of the thermocouple circuit contacts with the interface that charges, when the temperature at the interface that charges rises, the temperature of induction end real-time detection also changes, then produces the temperature difference between induction end and the reference end, and the thermocouple circuit can produce the thermoelectromotive force (voltage promptly) according to the temperature difference, and the temperature at the interface that charges can be confirmed according to the thermoelectromotive force that the thermocouple circuit produced at last.
The temperature threshold is pre-stored in the mobile terminal, and the temperature threshold may be 60 degrees celsius or other parameter values, which is not limited in the embodiment of the present invention.
After the mobile terminal obtains the temperature at the charging interface, the temperature at the charging interface can be compared with a temperature threshold value, and whether the temperature at the charging interface is greater than the temperature threshold value or not is judged, so that whether the temperature at the charging interface is too high or not is determined.
When the temperature at the charging interface is not greater than the temperature threshold, it indicates that the temperature at the charging interface is normal, and the current may be continuously used to charge the mobile terminal, so as to cyclically execute step 201 and step 202. However, when the temperature at the charging interface is greater than the temperature threshold, it indicates that the temperature at the charging interface is high, and the charging current output by the charger needs to be adjusted, so step 203 may be executed.
When the temperature at the charging interface is determined to be greater than the temperature threshold, it is indicated that the temperature of the charging interface of the mobile terminal is increased due to large-current charging, and potential safety hazards may exist. Therefore, the mobile terminal needs to send an adjustment signal to the charger to enable the charger to adjust the output charging current.
Specifically, when the temperature at the charging interface is greater than the temperature threshold, the mobile terminal may control the circuit between the thermocouple circuit and the charger to conduct, so as to form a closed loop, thereby using the thermal electromotive force generated by the thermocouple circuit as an adjustment signal, and sending the adjustment signal to the charger.
Correspondingly, the charger can receive the adjustment signal sent by the mobile terminal, and adjust the conduction time of the switching tube of the charging circuit in the charger according to the analog voltage parameter corresponding to the adjustment signal, namely the analog voltage parameter corresponding to the thermoelectromotive force, so as to complete the adjustment of the charging current.
In summary, in the charging method provided in the embodiment of the present invention, the temperature at the charging interface is detected, and whether the temperature at the charging interface is greater than the temperature threshold is determined, and when the temperature at the charging interface is greater than the temperature threshold, an adjustment signal is sent to the charger, so that the charger can adjust the output charging current, thereby controlling the charging current to decrease, preventing the charging interface from continuously generating a large amount of heat, timely decreasing the temperature at the charging interface, avoiding a safety problem caused by an excessively high temperature at the charging interface, and improving the charging safety of the mobile terminal.
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of a charging method according to an embodiment of the present invention, and as shown in fig. 3, the charging method is applied to a mobile terminal in the implementation environment shown in fig. 1, and includes the following steps:
In the charging process of the mobile terminal, because the mobile terminal is charged by adopting large current, under the condition that a charging interface of the mobile terminal is abnormal, the temperature at the charging interface is possibly overhigh, and potential safety hazards are generated. Therefore, the mobile terminal can detect the temperature at the charging interface in real time so as to control the magnitude of the charging current output by the charger according to the temperature.
In practical applications, the mobile terminal may include a thermocouple circuit, and the thermocouple circuit may include a sensing terminal and a reference terminal, wherein the sensing terminal is in contact with the charging interface and is used for detecting the temperature at the mobile charging interface. When the temperature detected by the induction end and the temperature detected by the reference end have a temperature difference, the thermocouple circuit can generate corresponding thermal electromotive force according to the generated temperature difference, so that the mobile terminal can acquire the temperature at the charging interface according to the thermal electromotive force.
Moreover, the mobile terminal may further include an analog-to-digital conversion circuit, and when the thermocouple circuit generates the thermal electromotive force, the analog-to-digital conversion circuit may convert an analog voltage parameter corresponding to the electromotive force to obtain a digital voltage parameter, so that the mobile terminal may determine the temperature at the charging interface according to the digital voltage parameter.
Optionally, when the temperature detected by the sensing end and the temperature detected by the reference end have a temperature difference, an analog voltage parameter is obtained, the analog voltage parameter is converted into a digital voltage parameter, and then the temperature at the charging interface is determined according to the digital voltage parameter and a preset corresponding relation.
Wherein the analog voltage parameter corresponds to a thermal electromotive force generated by the thermocouple circuit according to the temperature difference.
Specifically, when the temperature at the charging interface is increased, the temperature detected by the sensing end in the thermocouple circuit is increased, and the temperature detected by the reference end of the thermocouple circuit is kept unchanged, so that a temperature difference is generated between the two temperatures, the thermocouple circuit can generate a thermal electromotive force according to the temperature difference, the mobile terminal can acquire an analog voltage parameter corresponding to the thermal electromotive force, convert the analog voltage parameter into a digital voltage parameter through the analog-to-digital conversion circuit, and send the digital voltage parameter to the processor of the mobile terminal, so that the processor can determine the temperature at the charging interface of the mobile terminal according to the digital voltage parameter and a preset corresponding relationship.
Step 302 is similar to step 202 and will not be described herein again.
When the mobile terminal determines that the temperature at the charging interface is greater than the temperature threshold, it is indicated that the charging interface of the mobile terminal is abnormal, the charging current of the charger needs to be adjusted, and the safety problem caused by the overhigh temperature at the charging interface is avoided.
The mobile terminal is provided with a signal switch which is respectively connected with the processor, the thermocouple circuit and the charging interface. When the temperature of the charging interface is detected to be larger than the temperature threshold, the processor of the mobile terminal can control the signal switch to be conducted, so that the thermocouple circuit is connected with the charging interface, and then the thermocouple circuit is controlled to be connected with the charger, and a closed loop is formed.
Optionally, when the temperature at the charging interface is greater than the temperature threshold, the thermocouple circuit may be controlled to be in conduction with the charger, and the thermal electromotive force of the thermocouple circuit is used as an adjustment signal, and then the adjustment signal is sent to the charger through the thermocouple circuit.
Specifically, when the mobile terminal determines that the temperature at the charging interface is greater than the temperature threshold, the signal switch may be controlled to be turned on, so that the thermocouple circuit is turned on with the charger to form a closed loop, and the thermal electromotive force generated by the thermocouple circuit is used as an adjustment signal to send the adjustment signal to the charger, so that the charger may adjust the output charging current according to the adjustment signal.
Furthermore, a signal amplification circuit can be arranged between the thermocouple circuit of the mobile terminal and the charging interface, and thermoelectromotive force generated by the thermocouple circuit can be amplified through the signal amplification circuit, so that the charger can obtain more accurate adjustment signals according to the amplified thermoelectromotive force, and further more accurate adjustment is carried out on the charging current output by the charger.
Correspondingly, the charger can receive the adjusting signal sent by the mobile terminal, so that the charger can adjust the duty ratio of the charging circuit according to the adjusting signal and output the duty ratio according to the adjusted duty ratio, and the output charging current is adjusted.
Specifically, after the charging circuit of the charger receives the adjustment signal sent by the mobile terminal, the on-time of the switching tube in the charging circuit can be adjusted according to the adjustment signal, so that the on-time of the switching tube is reduced, and the off-time of the switching tube correspondingly is increased, thereby completing the adjustment of the duty ratio.
It should be noted that, while the charging circuit of the charger adjusts the charging current according to the adjustment signal, the over-temperature protection circuit of the charger may also receive the adjustment signal, and the over-temperature protection circuit may determine, according to the adjustment signal, whether the temperature at the charging interface of the mobile terminal is too high, and whether the charger is required to stop charging.
Accordingly, the temperature threshold may include a first temperature threshold and a second temperature threshold, with the second temperature threshold being greater than the first temperature threshold. Therefore, when the temperatures at the charging interfaces are different, the mobile terminal can send different adjusting signals to the charger according to different temperatures, and then different adjustments are carried out on the charging current.
Optionally, when the temperature at the charging interface is greater than the first temperature threshold and not greater than the second temperature threshold, the mobile terminal may send a first adjustment signal to the charger; when the temperature at the charging interface is greater than the second temperature threshold, the mobile terminal may send a second adjustment signal to the charger.
The first adjusting signal is used for enabling the charger to reduce the output charging current according to the first adjusting signal; the second adjusting signal is used for enabling the charger to stop outputting the charging current according to the second adjusting signal. In practical applications, the first adjustment signal and the second adjustment signal may both be thermal electromotive forces generated by the thermocouple circuit, but the analog voltage parameters corresponding to the first adjustment signal and the second adjustment signal are different in magnitude.
Specifically, when the mobile terminal detects that the temperature at the charging interface is greater than the first temperature threshold, the signal switch may be controlled to be turned on, so as to communicate the thermocouple circuit and the charger, so that the thermocouple circuit sends the first adjustment signal or the second adjustment signal to the charger, that is, sends a thermal electromotive force to the charger.
Correspondingly, the over-temperature protection circuit of the charger may compare the first adjustment signal or the second adjustment signal sent by the mobile terminal with a preset voltage threshold, and determine whether the analog voltage signal corresponding to the first adjustment signal or the second adjustment signal is greater than the voltage threshold.
When the mobile terminal sends the first adjusting signal, the analog voltage signal corresponding to the first adjusting signal is not greater than the voltage threshold, and after the over-temperature protection circuit is compared, the charging current can not be controlled according to the comparison result.
However, when the mobile terminal sends the second adjustment signal, the analog voltage signal corresponding to the second adjustment signal is greater than the voltage threshold, and the over-temperature protection circuit determines that the analog voltage signal corresponding to the second adjustment signal is greater than the voltage threshold, the over-temperature protection circuit can send a turn-off signal to the charging circuit, and the charging circuit can turn off the switching tube in the charging circuit according to the turn-off signal, so that the capacitor in the charging circuit is not discharged, the charging circuit does not output the charging current, and the charger stops inputting the current to the mobile terminal.
Furthermore, a diode can be arranged in the charger, so that signals generated by a charging circuit and an over-temperature protection circuit in the charger are prevented from being transmitted to the mobile terminal, and further the charging process of the mobile terminal is prevented from being influenced.
And step 304, when the charger stops outputting the charging current, acquiring the charging time and the charging electric quantity.
The charging duration is the time length for charging the mobile terminal, and the charging electric quantity is the electric quantity increased by the mobile terminal through charging.
When the charger stops outputting the charging current, the temperature at the charging interface of the mobile terminal is over high, so that a switching tube in a charging circuit of the charger is turned off, the charging current is stopped being output, and when the mobile terminal detects that the charger stops outputting the charging current, the charging duration and the charging electric quantity of the mobile terminal can be obtained, so that whether the charging interface of the mobile terminal is abnormal or not can be determined in the subsequent steps.
Specifically, when the mobile terminal detects that the charger stops outputting the charging current, the charging duration of the mobile terminal can be obtained according to the time when the mobile terminal starts charging and the time when the charging is stopped, and the charging electric quantity of the mobile terminal can be obtained according to the electric quantity corresponding to the time when the charging is started and the electric quantity corresponding to the time when the charging is stopped.
Wherein, the matching electric quantity is the charging electric quantity corresponding to the charging time during normal charging.
The mobile terminal can search in the preset electric quantity corresponding relation according to the acquired charging time to obtain the matching electric quantity corresponding to the charging time, so that whether the charging interface of the mobile terminal is abnormal or not can be determined according to the charging electric quantity and the matching electric quantity in the subsequent steps.
Specifically, after the mobile terminal obtains the charging duration, the mobile terminal can obtain a preset electric quantity corresponding relation, search in the preset electric quantity corresponding relation according to the charging duration, determine a duration range corresponding to the charging duration, and finally obtain the matching electric quantity corresponding to the duration range.
It should be noted that the preset electric quantity corresponding relation may be obtained by calculation according to the magnitude of the charging current, or may be obtained according to actual measurement, which is not limited in the embodiment of the present invention.
And step 306, prompting the user that the charging interface is abnormal when the difference value between the matching electric quantity and the charging electric quantity is larger than the electric quantity threshold value.
The mobile terminal can judge according to the difference between the charging electric quantity and the matching electric quantity to determine whether the charging process of the mobile terminal is normal or not, so that whether the charging interface of the mobile terminal is normal or not is determined, and a user is reminded of the abnormity of the charging interface according to the judgment result.
Specifically, the mobile terminal can calculate according to the charging current and the matching electric quantity to obtain a difference value between the charging electric quantity and the matching electric quantity, and compare the difference value with a preset electric quantity threshold value, and when the difference value is not greater than the electric quantity threshold value, it is indicated that the charging process of the mobile terminal is normal and the charging interface of the mobile terminal is not abnormal.
However, when the difference between the charging electric quantity and the matching electric quantity is greater than the electric quantity threshold, it indicates that the difference between the charging electric quantity and the matching electric quantity is large, the charging process of the mobile terminal is abnormal, and the temperature of the charging interface of the mobile terminal is too high, and the charging is abnormal possibly due to the abnormality of the charging interface, so that the user can be reminded that the charging interface is abnormal, and the user is requested to clean and maintain in time.
For example, if the matching electric quantity is 90% electric quantity, the charging electric quantity is 50% electric quantity, and the electric quantity threshold value is 10% electric quantity, it may be determined that the difference between the charging electric quantity and the matching electric quantity is 40% electric quantity, and the difference is greater than the electric quantity threshold value, it may be determined that the charging interface is abnormal.
In summary, in the charging method provided in the embodiment of the present invention, the temperature at the charging interface is detected, and whether the temperature at the charging interface is greater than the temperature threshold is determined, and when the temperature at the charging interface is greater than the temperature threshold, an adjustment signal is sent to the charger, so that the charger can adjust the output charging current, thereby controlling the charging current to decrease, preventing the charging interface from continuously generating a large amount of heat, timely decreasing the temperature at the charging interface, avoiding a safety problem caused by an excessively high temperature at the charging interface, and improving the charging safety of the mobile terminal.
Furthermore, the temperature at the charging interface is detected through the thermocouple circuit, corresponding analog voltage parameters are obtained, the analog voltage parameters are converted into digital voltage parameters, and finally the temperature at the charging interface is determined according to the digital voltage parameters. The temperature change at the charging interface can be accurately detected through the thermocouple circuit, so that whether the temperature at the charging interface is too high or not is accurately judged, and the accuracy of determining the temperature at the charging interface is improved.
Furthermore, the thermocouple circuit is controlled to be conducted with the charger, so that the thermoelectromotive force serving as an adjusting signal is sent to the charger, and the thermocouple circuit can be controlled to be disconnected with the charger when the temperature at the charging interface is normal, so that the thermoelectromotive force is prevented from being sent to the charger under the condition that the mobile terminal is normally charged, and the charging reliability of the mobile terminal is improved.
Furthermore, different adjusting signals are sent to the charger through different temperatures, so that the charger can adjust the charging current differently according to different adjusting signals, and the accuracy and flexibility of adjusting the charging current can be improved.
Furthermore, the charging time, the charging electric quantity and the matching electric quantity corresponding to the charging time are obtained, the difference value between the charging electric quantity and the matching electric quantity is determined, whether the charging interface is abnormal or not is determined according to the difference value, so that a user is reminded of the abnormality of the charging interface, the user can be reminded of the abnormality of the charging interface of the mobile terminal in time, the user can clean and maintain the charging interface, and the charging safety of the mobile terminal is improved.
Referring to fig. 4, a block diagram of a mobile terminal according to an embodiment of the present invention is shown, which may specifically include:
a detection module 401, configured to detect a temperature at a charging interface of the mobile terminal;
a determining module 402, configured to determine whether a temperature at the charging interface is greater than a temperature threshold;
a sending module 403, configured to send an adjustment signal to a charger when the temperature at the charging interface is greater than the temperature threshold, so that the charger adjusts the output charging current.
Optionally, the mobile terminal includes a thermocouple circuit, the thermocouple circuit includes an induction end and a reference end, and the induction end is in contact with the charging interface;
the detection module 401 includes:
the acquisition submodule is used for acquiring an analog voltage parameter when the temperature detected by the induction end and the temperature detected by the reference end have a temperature difference, and the analog voltage parameter corresponds to the thermoelectromotive force generated by the thermocouple circuit according to the temperature difference;
the conversion submodule is used for converting the analog voltage parameter into a digital voltage parameter;
and the determining submodule is used for determining the temperature at the charging interface according to the digital voltage parameter and a preset corresponding relation.
Optionally, the sending module 403 includes:
the circuit conduction submodule is used for controlling the thermocouple circuit to be conducted with the charger when the temperature at the charging interface is greater than the temperature threshold value;
a determination submodule for using a thermo-electromotive force of the thermocouple circuit as the adjustment signal;
and the sending submodule is used for sending the adjusting signal to the charger through the thermocouple circuit.
Optionally, the temperature threshold includes a first temperature threshold and a second temperature threshold, and the second temperature threshold is greater than the first temperature threshold;
the sending module 403 includes:
the first sending submodule is used for sending a first adjusting signal to the charger when the temperature at the charging interface is greater than the first temperature threshold and not greater than the second temperature threshold, and the first adjusting signal is used for enabling the charger to reduce the output charging current according to the first adjusting signal;
and the second sending submodule is used for sending a second adjusting signal to the charger when the temperature at the charging interface is greater than the second temperature threshold, and the second adjusting signal is used for enabling the charger to stop outputting the charging current according to the second adjusting signal.
Optionally, the mobile terminal further includes:
the first acquisition module is used for acquiring the charging time and the charging electric quantity when the charger stops outputting the charging current;
the second acquisition module is used for acquiring the matched electric quantity corresponding to the charging time;
and the prompting module is used for prompting the user that the charging interface is abnormal when the difference value between the matching electric quantity and the charging electric quantity is greater than the electric quantity threshold value.
The mobile terminal provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 2 and fig. 3, and is not described herein again to avoid repetition.
In summary, the mobile terminal provided in the embodiment of the present invention detects the temperature at the charging interface, and determines whether the temperature at the charging interface is greater than a temperature threshold, and when the temperature at the charging interface is greater than the temperature threshold, sends an adjustment signal to the charger, so that the charger can adjust the output charging current, thereby controlling the charging current to decrease, avoiding that a large amount of heat is continuously generated at the charging interface, being capable of timely decreasing the temperature at the charging interface, being capable of avoiding a safety problem caused by an excessively high temperature at the charging interface, and improving the charging safety of the mobile terminal.
Fig. 5 is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, where the mobile terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 5 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The sensor 505 is used for detecting the temperature at the charging interface of the mobile terminal;
a processor 510 configured to determine whether a temperature at the charging interface is greater than a temperature threshold;
an interface unit 508, configured to send an adjustment signal to a charger when the temperature at the charging interface is greater than the temperature threshold, so that the charger adjusts the output charging current.
According to the mobile terminal provided by the embodiment of the invention, the temperature at the charging interface is detected, whether the temperature at the charging interface is greater than the temperature threshold value is judged, and when the temperature at the charging interface is greater than the temperature threshold value, an adjusting signal is sent to the charger, so that the charger can adjust the output charging current, the charging current is controlled to be reduced, a large amount of heat is prevented from being continuously generated at the charging interface, the temperature at the charging interface can be timely reduced, the safety problem caused by overhigh temperature at the charging interface can be avoided, and the charging safety of the mobile terminal is improved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access through the network module 502, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the mobile terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.
The mobile terminal 500 also includes at least one sensor 505, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the mobile terminal 500 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 507 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 507 includes a touch panel 5051 and other input devices 5072. The touch panel 5051, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 5051 (e.g., operations by a user on the touch panel 5051 or near the touch panel 5051 using a finger, a stylus, or any other suitable object or attachment). The touch panel 5051 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5051 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to touch panel 5051, user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, a touch panel 5051 may be overlaid on the display panel 5061, and when the touch panel 5051 detects a touch operation thereon or thereabout, the touch panel 5051 is transmitted to the processor 510 to determine the type of touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of touch event. Although in fig. 5, the touch panel 5051 and the display panel 5061 are implemented as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 5051 and the display panel 5061 may be integrated to implement the input and output functions of the mobile terminal, and are not limited herein.
The interface unit 508 is an interface through which an external device is connected to the mobile terminal 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 500 or may be used to transmit data between the mobile terminal 500 and external devices.
The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 510 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the mobile terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.
The mobile terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the mobile terminal 500 includes some functional modules that are not shown, and thus, are not described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor 510, a memory 509, and a computer program that is stored in the memory 509 and can be run on the processor 510, and when the computer program is executed by the processor 510, the processes of the charging method embodiment are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the charging method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, 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, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A charging method is applied to a mobile terminal, and comprises the following steps:
detecting the temperature at a charging interface of the mobile terminal;
judging whether the temperature at the charging interface is greater than a temperature threshold value or not;
when the temperature at the charging interface is greater than the temperature threshold value, sending an adjusting signal to a charger so that the charger adjusts the output charging current; the mobile terminal comprises a thermocouple circuit, the thermocouple circuit comprises an induction end and a reference end, and the induction end is in contact with the charging interface;
the temperature at the interface that charges of detecting mobile terminal includes:
when the temperature detected by the induction end and the temperature detected by the reference end have a temperature difference, acquiring an analog voltage parameter, wherein the analog voltage parameter corresponds to a thermoelectromotive force generated by the thermocouple circuit according to the temperature difference;
converting the analog voltage parameter to a digital voltage parameter;
determining the temperature at the charging interface according to the digital voltage parameters and a preset corresponding relation; when the temperature at the charging interface is greater than the temperature threshold, sending an adjustment signal to a charger, including:
when the temperature at the charging interface is greater than the temperature threshold value, controlling the thermocouple circuit to be conducted with the charger;
using a thermal electromotive force of the thermocouple circuit as the adjustment signal;
sending the adjustment signal to the charger via the thermocouple circuit.
2. The method of claim 1, wherein the temperature threshold comprises a first temperature threshold and a second temperature threshold, the second temperature threshold being greater than the first temperature threshold;
when the temperature at the charging interface is greater than the temperature threshold, sending an adjustment signal to a charger to enable the charger to adjust the output charging current, including:
when the temperature at the charging interface is greater than the first temperature threshold and not greater than the second temperature threshold, sending a first adjusting signal to the charger, wherein the first adjusting signal is used for enabling the charger to reduce the output charging current according to the first adjusting signal;
and when the temperature at the charging interface is greater than the second temperature threshold value, sending a second adjusting signal to the charger, wherein the second adjusting signal is used for enabling the charger to stop outputting the charging current according to the second adjusting signal.
3. The method of claim 2, wherein after sending the adjustment signal to the charger when the temperature at the charging interface is greater than the second temperature threshold, the method further comprises:
when the charger stops outputting the charging current, acquiring the charging time and the charging electric quantity;
acquiring the matching electric quantity corresponding to the charging time;
and when the difference value between the matching electric quantity and the charging electric quantity is greater than the electric quantity threshold value, prompting a user that the charging interface is abnormal.
4. A mobile terminal, characterized in that the mobile terminal comprises:
the detection module is used for detecting the temperature at a charging interface of the mobile terminal;
the judging module is used for judging whether the temperature at the charging interface is greater than a temperature threshold value or not;
the sending module is used for sending an adjusting signal to a charger when the temperature at the charging interface is greater than the temperature threshold value so that the charger can adjust the output charging current; the mobile terminal comprises a thermocouple circuit, the thermocouple circuit comprises an induction end and a reference end, and the induction end is in contact with the charging interface;
the detection module comprises:
the acquisition submodule is used for acquiring an analog voltage parameter when the temperature detected by the induction end and the temperature detected by the reference end have a temperature difference, and the analog voltage parameter corresponds to the thermoelectromotive force generated by the thermocouple circuit according to the temperature difference;
the conversion submodule is used for converting the analog voltage parameter into a digital voltage parameter;
the determining submodule is used for determining the temperature at the charging interface according to the digital voltage parameter and a preset corresponding relation; the sending module comprises:
the circuit conducting submodule is used for controlling the thermocouple circuit to be conducted with the charger when the temperature at the charging interface is greater than the temperature threshold value;
a determination submodule for using a thermal electromotive force of the thermocouple circuit as the adjustment signal;
and the sending submodule is used for sending the adjusting signal to the charger through the thermocouple circuit.
5. The mobile terminal of claim 4, wherein the temperature threshold comprises a first temperature threshold and a second temperature threshold, the second temperature threshold being greater than the first temperature threshold;
the sending module comprises:
the first sending submodule is used for sending a first adjusting signal to the charger when the temperature at the charging interface is greater than the first temperature threshold and not greater than the second temperature threshold, and the first adjusting signal is used for enabling the charger to reduce the output charging current according to the first adjusting signal;
and the second sending submodule is used for sending a second adjusting signal to the charger when the temperature at the charging interface is greater than the second temperature threshold, and the second adjusting signal is used for enabling the charger to stop outputting the charging current according to the second adjusting signal.
6. The mobile terminal of claim 5, wherein the mobile terminal further comprises:
the first acquisition module is used for acquiring the charging time and the charging electric quantity when the charger stops outputting the charging current;
the second acquisition module is used for acquiring the matched electric quantity corresponding to the charging duration;
and the prompting module is used for prompting the user that the charging interface is abnormal when the difference value between the matching electric quantity and the charging electric quantity is greater than an electric quantity threshold value.
7. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements the steps of the charging method according to any one of claims 1 to 3.
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| CN109149690B (en) * | 2018-08-29 | 2021-01-12 | Oppo广东移动通信有限公司 | Charging control device and method and electronic equipment |
| CN109286219B (en) * | 2018-11-13 | 2020-11-03 | Oppo（重庆）智能科技有限公司 | Charging circuit, charging processing method, electronic device, and storage medium |
| CN109245244B (en) * | 2018-11-13 | 2021-03-02 | Oppo（重庆）智能科技有限公司 | Charging circuit, charging processing method, electronic device, and storage medium |
| CN109962514B (en) * | 2019-02-22 | 2021-01-08 | 维沃移动通信有限公司 | Charging method and mobile terminal |
| CN111525643A (en) * | 2020-04-30 | 2020-08-11 | 青岛海信移动通信技术股份有限公司 | Terminal and charging control method |
| CN111611130B (en) * | 2020-05-13 | 2021-11-05 | 上海龙旗科技股份有限公司 | Method, system and equipment for preventing burning of target interface |
| CN112003346B (en) * | 2020-08-18 | 2022-06-10 | Oppo广东移动通信有限公司 | Charging method and electronic device |
| CN112803516B (en) * | 2020-12-30 | 2023-06-20 | 维沃移动通信有限公司 | Charging interface, electronic equipment, and charging monitoring method and device |
| CN113178922A (en) * | 2021-05-13 | 2021-07-27 | 浙江特康电子科技有限公司 | Charging control method, system and device and charging device |
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