CN110797986A - Charging control method and device - Google Patents
Charging control method and device Download PDFInfo
- Publication number
- CN110797986A CN110797986A CN201810872443.8A CN201810872443A CN110797986A CN 110797986 A CN110797986 A CN 110797986A CN 201810872443 A CN201810872443 A CN 201810872443A CN 110797986 A CN110797986 A CN 110797986A
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery
- wireless charging
- value
- current value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 7
- 238000011217 control strategy Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a charging control method, a charging control device and a mobile terminal, wherein the charging control method comprises the following steps: detecting a charging mode; when the charging mode is detected to be wireless charging, judging whether the system is in operation or not; determining a wireless charging current value according to the judgment result; and wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
Description
Technical Field
The invention relates to the field of terminal product charging, in particular to a charging control method and device.
Background
At present, mobile terminals with wireless charging have the safety problem of wireless charging and quick charging. Due to the structural problem, the wireless charging coil is positioned above the cell position on the back surface of the mobile terminal battery. When wireless charging, the wireless charging coil behind the battery seriously generates heat, and the heat all conducts on the battery and leads to the battery swell to strut the front panel for a long time because the space is limited and the heat is not gone out. Therefore, the wireless charging and heating problem has become a great obstacle to limiting the development of wireless charging, and how to solve the safety problem caused by wireless charging and heating is a problem to be solved urgently.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide a charging control method and apparatus, which can effectively solve the heating problem of wireless charging and fast charging.
In a first aspect, an embodiment of the present invention provides a charging control method, which is applied to a mobile terminal, and the method includes:
detecting a charging mode;
when the charging mode is detected to be wireless charging, judging whether the system is in operation or not;
determining a wireless charging current value according to the judgment result;
and wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
In this embodiment of the present invention, optionally, the determining the wireless charging current value according to the determination result includes:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of a battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; wherein the second wireless charging current value is less than the first wireless charging current value.
In this embodiment of the present invention, optionally, the determining the wireless charging current value according to the determination result includes:
when the judgment result is that the system has the application running,
determining whether the temperature value of a first temperature sensor is higher than that of a second temperature sensor and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, wherein the first temperature sensor acquires the temperature of the center of a battery, and the second temperature sensor acquires the temperature close to the edge of the battery on a battery protection plate;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the system at the same time; wherein the third wireless charging current value is less than the fourth wireless charging current value.
In this embodiment of the present invention, optionally, when it is determined that the battery is charged by a third wireless charging current value, the method further includes:
detecting whether the temperature value of the first temperature sensor is higher than a third preset temperature threshold value or not;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
In this embodiment of the present invention, optionally, the method further includes:
when the charging mode is detected to be wired charging, acquiring a temperature value detected by a second temperature sensor;
determining a wired charging current value based on the temperature value;
and carrying out wired charging on the battery of the mobile terminal according to the determined wired charging current value.
In a second aspect, an embodiment of the present invention provides a charging control apparatus, which is applied to a mobile terminal, and the apparatus includes:
the detection module is used for detecting a charging mode;
the judging module is used for judging whether the system is in operation or not when the charging mode is detected to be wireless charging;
the first determining module is used for determining the wireless charging current value according to the judgment result;
and the first control module is used for wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
In this embodiment of the present invention, optionally, the first determining module is further configured to:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of a battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; wherein the second wireless charging current value is less than the first wireless charging current value.
In this embodiment of the present invention, optionally, the first determining module is further configured to:
when the judgment result is that the system has the application running,
determining whether the temperature value of a first temperature sensor is higher than that of a second temperature sensor and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, wherein the first temperature sensor acquires the temperature of the center of a battery, and the second temperature sensor acquires the temperature close to the edge of the battery on a battery protection plate;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the system at the same time; wherein the third wireless charging current value is less than the fourth wireless charging current value.
In this embodiment of the present invention, optionally, the first determining module is further configured to detect whether a temperature value of the first temperature sensor is higher than a third preset temperature threshold when it is determined that the battery is charged by a third wireless charging current value;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
In this embodiment of the present invention, optionally, the apparatus further includes:
the second determining module is used for acquiring a temperature value detected by the second temperature sensor when the charging mode is wired charging; determining a wired charging current value based on the temperature value;
and the second control module is used for carrying out wired charging on the battery of the mobile terminal according to the determined wired charging current value.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including:
a wireless charging coil is arranged on the base,
a battery located below the wireless charging coil;
a first temperature sensor for detecting a temperature of a center of the battery;
the second temperature sensor is positioned above the battery protection plate and used for detecting the temperature of the edge of the battery;
and the charging control device is used for detecting whether the charging mode is wired charging or wireless charging, determining a charging current value based on the charging mode, and controlling the charging of the battery according to the determined charging current value.
In the embodiment of the present invention, optionally, the first temperature sensor is located above the battery, and the second temperature sensor is located above the battery protection board.
In an embodiment of the present invention, optionally, the charging control device is the charging control device described above.
In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions are used to execute the charging control method according to the embodiment of the present invention.
In the technical scheme of the embodiment of the invention, whether the charging mode is wired charging or wireless charging is detected; when wireless charging is detected, judging whether the system is in operation or not; determining a wireless charging current value according to the judgment result; according to the wireless current value of charging of confirming, wireless charging of carrying on of mobile terminal's battery, so, in wireless charging process, no longer charge with invariable wireless current value of charging, but combine the system to have at present to use and confirm more suitable wireless current value of charging in operation, in good time adjust wireless current value of charging, thereby reduce wireless charging and generate heat, reduce the temperature of battery electric core, solve because of detecting that temperature sensor detection value on the battery protection shield is less than because of the wireless charging coil generates heat and lead to the control by temperature change of charging that electric core central authorities generate heat the temperature and lead to not in time to act on and then arouse the battery swell problem to generate heat serious problem when wireless charging is fast filled.
Drawings
FIG. 1 is a schematic diagram of a position of a wireless charging coil of a mobile terminal in a complete machine;
FIG. 2 is a schematic diagram of the surface temperature of a wireless charger;
FIG. 3 is a schematic diagram of the surface temperature of the rear shell of the whole machine;
FIG. 4 is a schematic top view of an integrated LCD;
fig. 5 is a flowchart illustrating a charging control method according to an embodiment of the invention;
fig. 6 is a schematic view illustrating charging control under a condition that the system is running without application according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating charging control in a case where the system provided by the embodiment of the present invention has an application running;
fig. 8 is a schematic structural diagram of a charging control apparatus according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a location of a temperature sensor in a wireless charging coil and a connection between the temperature sensor and a main board according to an embodiment of the invention.
Detailed Description
For better explanation of the present invention, the following current charging technique is described.
The low-power wireless charging (the power of the receiving end is less than 5W) has gradually exited the market at present due to the slow charging rate and poor user experience. The latest standard of wireless charging standard (QI) has introduced medium-power wireless charging with receiver power greater than 5W and less than 15W, and this increase in power is accompanied by serious heat generation problems in practical applications.
When 5 to 15W wireless charging products are researched, the fact that the wireless charging terminal is high in charging efficiency only at the central point position of the wireless charging disc, the charging efficiency is about 70%, the heating amount is relatively small, for the position with the large offset central point, in order to ensure that the input power of a receiving end is unchanged, the transmitting end always transmits the wireless charging terminal with large power, at the moment, the charging efficiency is smaller than 50%, and large current causes a large amount of heating through a coil of the transmitting end.
When studying wireless charging products below 5W, it is also found that heat generation is very serious when the output current is large, and due to the structural problem, the position of the wireless charging coil on the front side (also called TOP side) of the whole machine is schematically shown in fig. 1, wherein 11 denotes a rear shell, 12 denotes a battery, and 13 denotes a wireless charging coil. At present, all wireless charging coils of mobile terminals with wireless charging are arranged above the battery core on the back of the mobile terminal battery. The surface of the wireless charger and the contact surface of the mobile phone can reach more than 55 degrees in the test. As shown in fig. 2 to 4, when the output current is 1A, it is checked that the Negative Temperature Coefficient (NTC) Temperature of the battery (the NTC of the battery is on the battery protection board) has reached 50 degrees and the surface of the wireless charger coil has reached 56 degrees in about one hour, and the battery is just below the wireless charger coil, that is, the Temperature of the battery cell is actually higher than the Temperature of the NTC on the battery protection board, so that the battery bulges and the battery life is affected after long-time charging. Therefore, the wireless charging heating problem has become a great obstacle to limiting the development of wireless charging, and how to solve the safety problem caused by wireless charging heating is the focus of the current terminal research.
Based on this, the embodiment of the invention provides a charging control method and device and a mobile terminal, so as to solve the problem caused by wireless charging heating.
The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.
An embodiment of the present invention provides a charging control method, which is applied to a mobile terminal, and as shown in fig. 5, the method mainly includes:
step 501: whether the charging mode is wired charging or wireless charging is detected.
The wired charging may be understood as charging the mobile terminal through a USB line.
In this embodiment, the mobile terminal supports both wired charging and wireless charging.
Step 502: when the wireless charging is detected, whether the system is applied to operation or not is judged.
That is, the system may or may not have an application running when the mobile terminal is charged.
In this embodiment, different control strategies are adopted for the system to operate, so as to facilitate determination of a more appropriate wireless charging current value, and facilitate subsequent timely adjustment of the wireless charging current value.
Step 503: and determining the wireless charging current value according to the judgment result.
In some optional embodiments, the determining the wireless charging current value according to the determination result includes:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of the battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; the first temperature sensor collects the temperature of the center of the battery, and the second wireless charging current value is smaller than the first wireless charging current value.
Specifically, the first temperature sensor collects the temperature of a battery cell on the wireless charging coil.
Preferably, the first temperature sensor is located at a negative (also called BOT surface) central position on the wireless charging coil and is placed against the battery cell position, and the first temperature sensor is used for detecting the temperature of the battery cell during wireless charging.
Here, the first preset temperature threshold is a temperature at which the wireless charging coil generates heat and conducts to the battery with a risk of battery bulge when the system is not used in an operating condition during the wireless charging process.
Here, the first preset temperature threshold may be set or adjusted according to the type and/or kind of the battery.
In some optional embodiments, the determining the wireless charging current value according to the determination result includes:
when the judgment result is that the system has the application running,
determining whether the temperature value of the first temperature sensor is higher than the temperature value of the second temperature sensor and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, wherein the second temperature sensor acquires the temperature of the edge of the battery;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the application; wherein the third wireless charging current value is less than the fourth wireless charging current value.
The second temperature sensor is located on the battery protection board and collects the temperature of the edge of the battery close to the battery protection board.
Here, the second preset temperature threshold is a temperature value for starting a preset algorithm of the battery, such as the JEITA algorithm, on the battery protection board.
Here, the second preset temperature threshold may also be set or adjusted according to the type and/or kind of the battery.
Further, when it is determined that the battery is charged at a third wireless charging current value, the method further includes:
detecting whether the temperature value of the first temperature sensor is higher than a third preset temperature threshold value or not;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
Here, the third preset temperature threshold is a temperature at which the wireless charging coil generates heat and conducts to the battery to risk the battery from bulging when the system is applied to an operating condition in the wireless charging process.
Here, the third preset temperature threshold may also be set or adjusted according to the type and/or kind of the battery.
Step 504: and wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
In the above scheme, the method further comprises:
when wired charging is detected, acquiring a temperature value detected by a second temperature sensor on the battery protection board;
determining a wired charging current value based on the temperature value;
and carrying out wired charging on the battery of the mobile terminal according to the determined wired charging current value.
In some optional embodiments, the determining the wired charging current value based on the temperature value includes:
when the detected temperature value does not exceed a second preset temperature threshold value, determining to charge the battery by a first wired charging current value;
when the detected temperature value exceeds a second preset temperature threshold value, determining to charge the battery by a second wired charging current value; wherein the second wired charging current value is less than the first wired charging current value.
Here, the second preset temperature threshold is a temperature value for starting a preset algorithm of the battery, such as the JEITA algorithm, on the battery protection board.
In the technical scheme of the embodiment of the invention, in the wireless charging process, charging is not carried out at a constant wireless charging current value any more, but a more appropriate wireless charging current value is determined by combining with the current application or non-application of the system, and the wireless charging current value is adjusted in time, so that the wireless charging heating is reduced, the temperature of a battery cell is reduced, the problem of battery bulging caused by the fact that the charging temperature control does not act in time due to the fact that the detection value of a temperature sensor on a battery protection plate is lower than the central heating temperature of the battery cell caused by the heating of a wireless charging coil is solved, the problem of serious heating in the wireless charging quick charging process is solved, and the wireless power supply current for the system is. In the wired charging process, no longer charge with invariable wired charging current value, but combine temperature sensor's on the battery protection shield detected value, confirm more suitable wired charging current value, the wired charging current value of in good time adjustment reduces and avoids the battery bulge problem that the battery that leads to too fast of electric core temperature intensification in the battery that the coil generates heat and leads to in the wired charging process.
Fig. 6 is a schematic view of charging control under the condition that the system provided by the embodiment of the present invention is running without application, and as shown in fig. 6, the process includes:
step 601: the system detects that the mobile terminal is to be charged in advance, and executes step 602;
step 602: the system detects whether the current charging mode is wireless charging, if so, step 603 is executed, otherwise, step 607 is executed;
step 603: firstly, wirelessly charging a mobile terminal battery by using a first charging current value, detecting a temperature value of a temperature sensor B on a wireless charging coil in real time, and then executing step 604;
step 604: judging whether the temperature value exceeds a preset temperature threshold value, if so, executing a step 605; if not, go to step 606;
step 605: charging the mobile terminal battery by a second charging current value smaller than the first charging current value;
for example, the first charging current value is 400mA, and the second charging current value is 300 mA.
Step 606: charging the mobile terminal at a first charging current value all the time;
step 607: the charging current is adjusted and controlled by detecting the temperature value of the temperature sensor A on the battery protection board.
Fig. 7 is a schematic view of charging control when the system provided by the embodiment of the present invention has an application running, and as shown in fig. 7, the process includes:
step 701: the system detects that the mobile terminal is to be charged in advance, and executes step 702;
step 702: the system detects whether the current charging mode is wireless charging, if so, step 703 is executed, otherwise, step 708 is executed;
step 703: detecting whether the system is applied to operation or not, and detecting the values of a temperature sensor A on a battery protection board and a temperature sensor B on a wireless charging coil in real time; if no application is running, execute step 709, if there is an application running, execute step 704;
step 704: detecting whether the value of temperature sensor B is higher than the value of temperature sensor a and whether temperature sensor a is higher than threshold a1, if yes, performing step 705; if not, go to step 710;
wherein the threshold value A1 is a temperature value for starting the battery JEITA algorithm on the battery protection board.
Step 705: wirelessly charging the mobile terminal battery at a second current value (e.g. smaller than 400mA) smaller than the first charging current value, and then executing step 706;
step 706: detecting whether the value of the temperature sensor B is higher than a threshold value B1, and if the value of the temperature sensor B is higher than a threshold value B1, executing a step 707; if the value is lower than the threshold value B1, returning to the step 705;
wherein, the threshold value B1 is the temperature at which the heat generated by the wireless charging coil is conducted to the battery during the actual test process and there is a risk of battery bulge.
Step 707: only supplying power to the system and stopping charging the battery;
step 708: the charging current is adjusted and controlled by detecting the temperature value of a temperature sensor A on the battery protection board;
step 709: performing charging control according to a charging control strategy under the condition of no application operation;
specifically, the charging control is performed according to the charging control strategy in the non-application running condition, and the operations may be performed according to the flow shown in step 603 to step 607 in fig. 6.
Step 710: and charging the mobile terminal at the first charging current value all the time.
The above wireless charging dynamic current adjustment scheme is used to protect the charging safety of the battery during wireless charging, and the first scheme is pure wireless charging non-application operation temperature control protection, and the specific operation process refers to fig. 6; second, when the system has an application in operation, the temperature control of the wireless charging to power the system and charge the battery is shown in fig. 7.
The wireless charging dynamic current adjusting scheme can reduce and avoid the problem of battery bulge caused by too fast temperature rise of the battery cell due to heating of the coil in the current wireless charging process, and can increase the wireless power supply current for the system as much as possible. The wireless charging dynamic current adjusting scheme can reduce the problem of serious heating during wireless charging and quick charging; the problem of non-charging caused by coil displacement is solved.
Fig. 8 is a schematic structural diagram of a charging control device according to an embodiment of the present invention, where the charging control device is applied to a mobile terminal, and as shown in fig. 8, the charging control device includes:
the detection module 10 is used for detecting whether the charging mode is wired charging or wireless charging;
the judging module 20 is configured to, when it is detected that the wireless charging is performed, judge whether the system is running;
a first determining module 30, configured to determine a wireless charging current value according to a determination result;
and the first control module 40 is used for wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
In some optional embodiments, the first determining module 30 is further configured to:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of a battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; wherein the second wireless charging current value is less than the first wireless charging current value.
In some optional embodiments, the first determining module 30 is further configured to:
when the judgment result is that the system has the application running,
determining whether the temperature value of the first temperature sensor is higher than the temperature value of the second temperature sensor, and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value; the first temperature sensor collects the temperature of the center of the battery, and the second temperature sensor collects the temperature of the edge of the battery;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the application; wherein the third wireless charging current value is less than the fourth wireless charging current value.
Further, in some optional embodiments, the first determining module 30 is further configured to detect whether the temperature value of the first temperature sensor is higher than a third preset temperature threshold when it is determined that the battery is charged with the third wireless charging current value;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
In this embodiment of the present invention, optionally, the apparatus further includes:
a second determining module 50 for acquiring a temperature value detected by a second temperature sensor on the battery protection board when the wired charging is detected; determining a wired charging current value based on the temperature value;
and a second control module 60, configured to perform wired charging on the battery of the mobile terminal according to the determined wired charging current value.
In practical applications, the detecting module 10, the judging module 20, the first determining module 30, the first controlling module 40, the second determining module 50, and the second controlling module 60 may be implemented by a Central Processing Unit (CPU), a microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like, which are located in the charging controlling device.
This embodiment charge control device can reduce and avoid the battery bulge problem that the battery core temperature intensification that leads to that the coil generates heat in the wireless charging process leads to at the excessive speed.
The embodiment of the application also discloses a mobile terminal, which comprises the charging control device. The charging control device is used for detecting whether the charging mode is wired charging or wireless charging, determining a charging current value based on the charging mode, and controlling charging of the battery according to the determined charging current value.
Specifically, the mobile terminal further comprises a wireless charging coil; a battery located below the wireless charging coil; the first temperature sensor is positioned above the center of the battery and used for detecting the temperature of the center of the battery; and the second temperature sensor is positioned above the battery protection plate and used for detecting the temperature of the edge of the battery close to the battery protection plate.
Preferably, the battery is located below a center position of the wireless charging coil.
The technical scheme can be used for mobile terminals such as mobile phones and tablet computers.
Fig. 9 is a schematic diagram showing a placement position of a temperature sensor in a wireless charging coil and a connection between the temperature sensor and a main board, in fig. 9, 91 denotes the main board, 92 denotes a battery protection board, 93 denotes a battery, 94 denotes the wireless charging coil, a denotes a temperature sensor a, B denotes a temperature sensor B, 95 denotes a ground spring, 96 denotes a power input spring, and 97 denotes a temperature signal detection spring. And the temperature sensor B is arranged at the central position below the wireless charging coil and is attached to the battery core. The temperature sensor B is arranged at the negative (also called BOT surface) central position on the wireless charging coil of the mobile terminal and is attached to the battery cell position, and the temperature sensor B is used for detecting the temperature of the battery cell during wireless charging; the temperature sensor B is connected with a temperature detection signal on the mainboard through a Flexible Printed Circuit (FPC) and a shrapnel on the mainboard.
Specifically, add a temperature sensor in wireless charging coil central point below the central point of the mobile terminal receiving end battery electricity core central point, this temperature sensor passes through FPC and is connected together through the shell fragment with the signal on the mainboard, when detecting to use wireless charging, be used for detecting the temperature of electric core when wireless charging, when the treater detects this temperature and surpasss certain threshold value, reduce the electric current of wireless charging, thereby reduce wireless charging and generate heat, reduce the temperature of battery electricity core, solve because of detecting that temperature sensor detection value on the battery protection shield is less than because of the wireless charging coil generates heat and lead to the temperature control of charging that electric core central point of generating heat and lead to not in time to act on and then arouse the battery swell problem. And the magnitude of the charging current is still controlled by detecting the temperature sensor on the battery protection board during the wired charging.
According to the method, the temperature sensor is additionally arranged above the center of the battery cell below the center of the wireless charging coil, and the method is matched with the appropriate software temperature control algorithm, so that the problem of battery bulge caused by too fast temperature rise of the battery cell due to heating of the coil in the wireless charging process can be solved, and compared with other technologies, the method is simpler to realize and saves cost.
The present embodiment also provides a storage medium storing a computer program capable of implementing any one or more of the foregoing charging control methods after being executed by a processor.
The computer storage medium may be of various types, and in this embodiment may preferably be a non-transitory storage medium.
It should be understood by those skilled in the art that the functions of the programs in the storage medium of the present embodiment can be understood by referring to the description related to the charging control method applied to the transmitting side described in the embodiments.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
Compared with the prior art, the technical scheme recorded in the embodiment of the invention has the following advantages:
1. the battery bulge problem caused by the fact that the temperature of a battery core in the battery is heated too fast due to the fact that a coil generates heat in the existing wireless charging process can be reduced and avoided, and the wireless power supply current for the system is increased as much as possible;
2. on the basis of the existing wireless charging temperature control scheme, a temperature sensor is added above the center of an electric core in a battery below the central position of a wireless charging coil of a mobile terminal on hardware, and the problem of battery bulge caused by too fast temperature rise of the electric core of the battery due to heating of the coil in the wireless charging process is solved by matching an appropriate software temperature control algorithm.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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, that is, 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, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A charging control method is applied to a mobile terminal, and is characterized by comprising the following steps:
detecting a charging mode;
when the charging mode is detected to be wireless charging, judging whether the system is in operation or not;
determining a wireless charging current value according to the judgment result;
and wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
2. The method of claim 1, wherein determining the wireless charging current value according to the determination result comprises:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of a battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; wherein the second wireless charging current value is less than the first wireless charging current value.
3. The method of claim 1, wherein determining the wireless charging current value according to the determination result comprises:
when the judgment result is that the system has the application running,
determining whether the temperature value of a first temperature sensor is higher than the temperature value of a second temperature sensor and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, wherein the first temperature sensor acquires the temperature of the center of a battery, and the second temperature sensor acquires the temperature of the edge of the battery close to a battery protection plate;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the system at the same time; wherein the third wireless charging current value is less than the fourth wireless charging current value.
4. The method of claim 3, wherein when determining to charge the battery at a third wireless charging current value, the method further comprises:
detecting whether the temperature value of the first temperature sensor is higher than a third preset temperature threshold value or not;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
5. A charging control device applied to a mobile terminal is characterized by comprising:
the detection module is used for detecting a charging mode;
the judging module is used for judging whether the system is in operation or not when the charging mode is detected to be wireless charging;
the first determining module is used for determining the wireless charging current value according to the judgment result;
and the first control module is used for wirelessly charging the battery of the mobile terminal according to the determined wireless charging current value.
6. The apparatus of claim 5, wherein the first determining module is further configured to:
when the judgment result is that the system has no application in operation,
acquiring a temperature value detected by a first temperature sensor, wherein the first temperature sensor acquires the temperature of the center of a battery;
when the detected temperature value does not exceed a first preset temperature threshold value, determining to charge the battery by a first wireless charging current value;
when the detected temperature value exceeds a first preset temperature threshold value, determining to charge the battery by a second wireless charging current value; wherein the second wireless charging current value is less than the first wireless charging current value.
7. The apparatus of claim 5, wherein the first determining module is further configured to:
when the judgment result is that the system has the application running,
determining whether the temperature value of a first temperature sensor is higher than the temperature value of a second temperature sensor and whether the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, wherein the first temperature sensor acquires the temperature of the center of a battery, and the second temperature sensor acquires the temperature of the edge of the battery close to a battery protection plate;
if the temperature value of the first temperature sensor is higher than that of the second temperature sensor, and the temperature value of the second temperature sensor is higher than a second preset temperature threshold value, determining that the battery is charged by a third wireless charging current value;
otherwise, determining that the battery of the mobile terminal is charged by the fourth wireless charging current value and supplying power to the system at the same time; wherein the third wireless charging current value is less than the fourth wireless charging current value.
8. The apparatus of claim 7, wherein the first determining module is further configured to detect whether the temperature value of the first temperature sensor is higher than a third preset temperature threshold when it is determined that the battery is charged at a third wireless charging current value;
if the temperature is higher than a third preset temperature threshold value, determining to stop charging the battery and only supplying power to the system;
and if the temperature is lower than a third preset temperature threshold value, determining that the battery is continuously charged at a third wireless charging current value.
9. A mobile terminal, characterized in that the mobile terminal comprises:
a wireless charging coil is arranged on the base,
a battery located below the wireless charging coil;
a first temperature sensor for detecting a temperature of a center of the battery;
a second temperature sensor for detecting a temperature of an edge of the battery;
a charging control device according to any one of claims 5 to 8, configured to detect a charging manner, determine a charging current value based on the charging manner, and perform charging control on the battery according to the determined charging current value.
10. The mobile terminal of claim 9, wherein the first temperature sensor is located above the battery, and the second temperature sensor is located above a battery protection board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872443.8A CN110797986B (en) | 2018-08-02 | 2018-08-02 | Charging control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872443.8A CN110797986B (en) | 2018-08-02 | 2018-08-02 | Charging control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110797986A true CN110797986A (en) | 2020-02-14 |
| CN110797986B CN110797986B (en) | 2023-10-27 |
Family
ID=69426136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810872443.8A Active CN110797986B (en) | 2018-08-02 | 2018-08-02 | Charging control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110797986B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887571A (en) * | 2014-03-28 | 2014-06-25 | 乐视致新电子科技（天津）有限公司 | Charging mode switching method and charging mode switching device |
| CN105591440A (en) * | 2016-02-25 | 2016-05-18 | 努比亚技术有限公司 | Mobile terminal charging control device and mobile terminal charging control method |
| CN106329609A (en) * | 2015-07-10 | 2017-01-11 | 深圳市蓝魔数码科技有限公司 | Mobile terminal and temperature control method |
| US20170063141A1 (en) * | 2015-08-25 | 2017-03-02 | Samsung Electronics Co., Ltd. | Electronic device and method for controlling temperature of electronic device |
| CN106786897A (en) * | 2016-12-26 | 2017-05-31 | 广东欧珀移动通信有限公司 | Charging method, mobile terminal and charging equipment |
| CN107147161A (en) * | 2017-05-04 | 2017-09-08 | 深圳市金立通信设备有限公司 | The charging method and terminal of a kind of terminal |
| CN108287605A (en) * | 2018-01-08 | 2018-07-17 | 广东欧珀移动通信有限公司 | charge control method, device, terminal device and storage medium |
-
2018
- 2018-08-02 CN CN201810872443.8A patent/CN110797986B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887571A (en) * | 2014-03-28 | 2014-06-25 | 乐视致新电子科技（天津）有限公司 | Charging mode switching method and charging mode switching device |
| CN106329609A (en) * | 2015-07-10 | 2017-01-11 | 深圳市蓝魔数码科技有限公司 | Mobile terminal and temperature control method |
| US20170063141A1 (en) * | 2015-08-25 | 2017-03-02 | Samsung Electronics Co., Ltd. | Electronic device and method for controlling temperature of electronic device |
| CN105591440A (en) * | 2016-02-25 | 2016-05-18 | 努比亚技术有限公司 | Mobile terminal charging control device and mobile terminal charging control method |
| CN106786897A (en) * | 2016-12-26 | 2017-05-31 | 广东欧珀移动通信有限公司 | Charging method, mobile terminal and charging equipment |
| CN107147161A (en) * | 2017-05-04 | 2017-09-08 | 深圳市金立通信设备有限公司 | The charging method and terminal of a kind of terminal |
| CN108287605A (en) * | 2018-01-08 | 2018-07-17 | 广东欧珀移动通信有限公司 | charge control method, device, terminal device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110797986B (en) | 2023-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11368039B2 (en) | Battery charging method and electronic device | |
| CN104967200A (en) | Quick-charging method and mobile terminal | |
| CN104577231A (en) | Method, adaptor, terminal and system for realizing quick charging | |
| CN107332208B (en) | A kind of protection circuit, mainboard guard method and terminal | |
| KR20170020543A (en) | Electronic device quick charging method, apparatus and device | |
| JP6607669B2 (en) | Wireless charging apparatus and charging method thereof | |
| JP2016525868A (en) | Power supply terminal, and charging control method and apparatus | |
| CN102761666A (en) | Cell phone and temperature control method of cell phone | |
| CN111585314A (en) | Wireless charging transmitter and wireless power transmission method | |
| CN112928789B (en) | Charging method and electronic equipment | |
| KR20170020536A (en) | Fast charging method, power source adapter and mobile terminal | |
| CN103066632B (en) | Charging control method | |
| CN202906511U (en) | Charging system and charging base of electronic device | |
| CN106412337B (en) | Method and device for adjusting heating condition of mobile terminal and terminal | |
| JP5942688B2 (en) | Electronic device, charge control method, and charge control program | |
| CN116780713B (en) | Wireless charging method, system, equipment and storage medium for magnetic mobile energy storage power supply | |
| TWI478462B (en) | Battery and charging system using the same | |
| CN110392969B (en) | Wireless charging method, device and storage medium | |
| CN110797986A (en) | Charging control method and device | |
| CN102801197B (en) | Terminal and charge control method thereof | |
| CN109038751B (en) | Charging control method, mobile terminal and storage medium | |
| KR101270675B1 (en) | Power supply | |
| CN104242398A (en) | Mobile terminal, and method and device for regulating charging currents | |
| CN104283289A (en) | Bluetooth charging device and charging control method | |
| CN104184179A (en) | Battery control method and device, and wireless terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |