CN111525643A - Terminal and charging control method - Google Patents
Terminal and charging control method Download PDFInfo
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- CN111525643A CN111525643A CN202010361991.1A CN202010361991A CN111525643A CN 111525643 A CN111525643 A CN 111525643A CN 202010361991 A CN202010361991 A CN 202010361991A CN 111525643 A CN111525643 A CN 111525643A
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- control unit
- temperature
- charging port
- current
- charging
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- 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
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- 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
- H02J7/00309—Overheat or overtemperature protection
Abstract
The application provides a terminal and a charging control method, which are applied to the terminal and used for reducing damage to the terminal and an adapter caused by continuous operation of large current in the terminal charging process. In the process of charging the battery, if the temperature of the charging port is higher than a first temperature threshold value, controlling a switch between the charging port and the grounding wire to be closed; or if the temperature of the charging port is higher than the first temperature threshold value, reducing the current input into the battery by the adapter through the first current control unit. When the temperature of the charging port is higher than the first temperature threshold value in the charging process, the current input to the battery by the adapter through the first current control unit is reduced, and the damage to the terminal and the adapter is reduced.
Description
Technical Field
The present application relates to the field of charging control, and in particular, to a terminal and a charging control method.
Background
At present, a burning-prevention circuit is realized by an NTC (Negative Temperature Coefficient thermistor) and an MOS (Metal-Oxide-Semiconductor), the overcurrent protection of an adapter is realized by short circuit of a VBUS (universal serial bus) and a GND (ground), and the adapter can disconnect the output of a unit to achieve the purpose of stopping charging.
An overcurrent protection mechanism is arranged in the end of the standard adapter, and the standard adapter stops current output based on the overcurrent protection mechanism; however, for a non-standard adapter without an overcurrent protection mechanism, when a power supply is connected to a terminal through the non-standard adapter, the terminal is continuously charged, and at this time, a full-load large current in the adapter and the terminal charging loop continuously works to generate heat, which causes a charging port to be burned or a battery to explode.
Disclosure of Invention
The application provides a terminal and a charging control method, which are used for reducing damage to the terminal caused by continuous operation of large current in the terminal charging process.
In a first aspect, the present application provides a terminal, including a charging protection circuit, a charging port, and a battery, where the charging protection circuit includes: temperature detecting element, main control unit and first current control unit, wherein:
the temperature detection unit is used for detecting the temperature of the charging port in the process of charging the battery through the adapter and sending a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold value;
and the main control unit is used for reducing the current input to the battery by the adapter through the first current control unit after receiving the signal that the temperature of the charging port sent by the temperature detection unit is higher than the first temperature threshold value.
In this application, be provided with the protection circuit that charges in the terminal, the protection circuit that charges includes: the temperature detection unit, the main control unit and the first current control unit; in the process of charging the battery through the adapter, the temperature detection unit detects the temperature of the charging port, when the temperature of the charging port is higher than a first temperature threshold value, in order to prevent the terminal and the adapter from being burnt due to overhigh temperature, a signal that the temperature of the charging port is higher than the first temperature threshold value is sent to a main control unit of the charging protection circuit, and the main control unit reduces the current input to the battery by the adapter through a first current control unit after receiving the signal.
In a possible implementation manner, the main control unit is specifically configured to:
after a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value is received, the resistance value of the first current control unit is increased to reduce the current input to the battery by the adapter through the first current control unit.
In this application, when the temperature of charging port is higher than first temperature threshold, increase the resistance of first current control unit, the resistance increases, and the electric current reduces, has consequently reduced the electric current of inputing to the battery through first current control unit, has reduced the harm that the electric current lasts the work and causes the terminal.
In a second aspect, the present application provides a terminal, where the terminal includes a charging protection circuit, a charging port, and a battery, and the charging protection circuit includes: temperature detecting element, main control unit, be located the switch between charging port and the earth connection, wherein:
the temperature detection unit is used for detecting the temperature of the charging port in the process of charging the battery through the adapter and sending a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold value;
and the main control unit is used for controlling the switch to be closed after receiving the signal that the temperature of the charging port sent by the temperature detection unit is higher than the first temperature threshold value.
In this application, be provided with the protection circuit that charges in the terminal, the protection circuit that charges includes: the temperature detection unit, the main control unit and the switch are arranged between the charging port and the grounding wire; in the process of charging the battery through the adapter, the temperature detection unit detects the temperature of the charging port, when the temperature of the charging port is higher than a first temperature threshold value, in order to prevent the situation that the charging port and the adapter are burnt due to overhigh temperature, a signal that the temperature of the charging port is higher than the first temperature threshold value is sent to a main control unit of the charging protection circuit, and after the main control unit receives the signal, the main control unit controls the switch between the charging port and a grounding wire to be closed, so that the charging port is short-circuited, no current is input into the battery at the moment, the temperature is reduced, the terminal is prevented from being burnt, and the damage to the terminal caused by continuous operation of the current is reduced.
In a possible implementation manner, the charging protection circuit further includes a first current control unit, one end of the first current control unit is connected to the charging port, and the other end of the first current control unit is connected to the battery;
the main control unit is further configured to:
after the control switch is closed, if the charging port is determined to have current output and the preset switch disconnection condition is determined to be met, the control switch is disconnected, the resistance value of the first current control unit is increased, and the current input to the battery by the adapter through the first current control unit is reduced.
In this application, after the switch closure, the port ground that charges, the power short circuit, there is the electric current on detecting the short circuit route this moment, and there is the electric current then can burn out the wire continuously, cause the harm for the terminal, consequently, when there is the electric current on the short circuit route, in order to protect the terminal, increase first current control unit's resistance, be used for reducing the adapter through the electric current of first current control unit input to the battery, charge for the battery, the harm because of short circuit current terminal and adapter cause has been avoided this moment, the harm that causes terminal and adapter when having reduced again because of continuously adopting heavy current to charge.
In one possible implementation, the switch open condition includes:
the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or
The closing time of the switch between the charging port and the grounding wire reaches a set threshold.
In the application, when the temperature is too high, the lead in the terminal is burnt, so that after the temperature of the lead reaches a certain degree, the switch between the charging port and the grounding wire is disconnected, and/or the increasing trend of the temperature along with the time course can be known according to the Joule law, the longer the time is, the higher the temperature is, and therefore when the closing time reaches a certain threshold value, the switch between the charging port and the grounding wire is disconnected; after the switch before disconnecting the charging port and the grounding wire, no current flows through a short-circuit path between the charging port and the grounding wire, the temperature is continuously reduced, a lead in the terminal cannot be burnt, and damage to the terminal is reduced.
In a possible implementation manner, the charging protection circuit further includes a second current control unit; the second current control unit is positioned between the charging port and the grounding wire and is connected with the switch;
the main control unit is specifically configured to:
and detecting whether the charging port has current or not according to the current value reported by the second current control unit.
In this application, in order to guarantee that the main control unit can detect the current between charging port and the earth connection, then be connected with the second current control unit that is used for acquireing the short circuit path current value between main control unit and earth connection to report the short circuit path current value who obtains to main control unit, whether the detection charging port that guarantees main control unit can be accurate has the current.
In one possible implementation, the main control unit is further configured to:
after a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value is received, controlling the first current control unit to stop working;
and after the charging port is determined to have current output and the preset switch disconnection condition is determined to be met, the first current control unit is controlled to resume working before the resistance value of the first current control unit is increased.
In the application, in order to prevent the current from existing in the terminal charging loop, after the signal sent by the temperature detection unit is received, the first current control unit is controlled to stop working, so that double guarantee is provided for the terminal; and after the charging port is detected to have current and the switch disconnection condition is met, the first current control unit is controlled to resume working and continue to charge the battery before the first current control unit is controlled to reduce the current output by the charging port.
In one possible implementation, the main control unit is further configured to:
and if no current is detected in the charging port, keeping a switch between the charging port and the grounding wire in a closed state.
In this application, when detecting that the charging port has no current, then can not produce the heat on the short-circuit path of charging port, guarantee that the switch between charging port and the earth connection is in the closure state can not cause harm to terminal and adapter.
In a third aspect, an embodiment of the present application provides a charging control method, which is applied to a terminal, and the method includes:
in the process of charging the battery through the adapter, detecting whether a signal that the temperature of a charging port sent by a temperature detection unit is higher than a first temperature threshold value is received;
and if the signal sent by the temperature detection unit is received, the current input to the battery by the adapter through the first current control unit is reduced.
In a fourth aspect, an embodiment of the present application provides a charging control method, which is applied to a terminal, and the method includes:
in the process of charging the battery through the adapter, detecting whether a signal that the temperature of a charging port sent by a temperature detection unit is higher than a first temperature threshold value is received;
and if the signal sent by the temperature detection unit is received, controlling a switch between the charging port and the grounding wire to be closed.
In a fifth aspect, an embodiment of the present application provides a charge control device, including: the first detection module and the first control module:
the first detection module is used for detecting whether a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value is received or not in the process of charging the battery through the adapter;
and the first control module is used for controlling the switch between the charging port and the grounding wire to be closed if receiving the signal sent by the temperature detection unit.
In a sixth aspect, an embodiment of the present application provides a charge control device, including: the second detection module and the second control module:
the second detection module is used for detecting whether a signal that the temperature of the charging port sent by the temperature detection unit is higher than the first temperature threshold value is received or not in the process of charging the battery through the adapter;
and the second control module is used for controlling the switch between the charging port and the grounding wire to be closed if receiving the signal sent by the temperature detection unit.
In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where computer instructions are stored, and when the computer instructions are executed by a processor, the charging control method provided in the embodiment of the present application is implemented.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a charging scenario of a terminal in the related art;
fig. 2 is a schematic diagram of a terminal charging according to an embodiment of the present disclosure;
fig. 3 is a flowchart of a charging control method according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a charging protection circuit corresponding to a first charging control method according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a charging protection circuit corresponding to a second charging control method according to an embodiment of the present disclosure;
fig. 6 is a flowchart of another charging control method according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a charging protection circuit corresponding to a third charging control method according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of a charging protection circuit corresponding to a fourth charging control method according to the embodiment of the present application;
fig. 9 is a schematic diagram of a charging protection circuit corresponding to a fifth charging control method according to an embodiment of the present disclosure;
fig. 10 is a schematic diagram of a charging protection circuit corresponding to a sixth charging control method according to an embodiment of the present disclosure;
fig. 11 is a flowchart of an overall charging control method according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of a first terminal according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a second terminal according to an embodiment of the present application;
fig. 14 is a schematic diagram of a first charging control device according to an embodiment of the present application;
fig. 15 is a schematic diagram of a second charging control device according to an embodiment of the present application.
Detailed Description
The architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that with the occurrence of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
The technical solutions in the embodiments of the present application will be described in detail and clearly with reference to the accompanying drawings. In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" in the text is only an association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: three cases of a alone, a and B both, and B alone exist, and in addition, "a plurality" means two or more than two in the description of the embodiments of the present application.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of embodiments of the application, unless stated otherwise, "plurality" means two or more.
Fig. 1 shows a schematic diagram of charging a terminal in the related art.
The following describes embodiments specifically by taking a mobile phone terminal as an example. It should be understood that a handset terminal is only one example. The terminal can also be a tablet computer, a computer with a wireless transceiving function, a virtual reality terminal, an augmented reality terminal, an unmanned terminal, a terminal in a smart grid, a smart city terminal, a smart home terminal and other terminals capable of performing charging control.
Fig. 1 is a block diagram schematically showing a hardware configuration of a mobile phone terminal according to an exemplary embodiment. As shown in fig. 1, the mobile phone terminal includes a charging port 100, a power management unit 101, a battery 102, and a camera 103.
When charging the battery 102 of the mobile phone terminal, the charging port 100 is connected to the adapter 12 via the data line 11, and the adapter 12 is connected to a power supply. The current is transmitted to a charging port 100 of the mobile phone terminal through a data line 11, and the charging port 100 transmits the current to a battery 102 of the mobile phone terminal through a power management unit 101 to realize a process of charging the battery 102; when the battery 102 supplies power, the battery 102 supplies power to the power management unit 101, and the power management unit 101 transmits the power of the battery 102 to the camera 103, so that the battery 102 supplies power to other components such as the camera 103 of the terminal.
At present, when a mobile phone terminal is charged, due to long-time heavy current charging, the adapter and a charging loop in the terminal continuously work under full load heavy current, and a charging port and the adapter are burnt or a battery explodes. Therefore, an overcurrent protection mechanism is arranged in the standard adapter, and the risk is reduced by controlling the adapter end not to output current. However, the terminal cannot determine whether the adapter connected to the terminal is a standard adapter provided with an overcurrent protection mechanism, and if the adapter connected to the terminal is a non-standard adapter not provided with the overcurrent protection mechanism, the adapter still continuously outputs current to charge the terminal, so that damage to the terminal and the adapter due to continuous operation of large current is not reduced.
Based on the above discussed scenarios, the present application provides a terminal and a charging control method for the problem of damage to the terminal due to continuous operation of a large current in the process of charging the terminal by using an adapter. Reference is made to the following examples, which are provided by way of illustration only and are not intended to be limiting.
The terminal is provided with a charging port 100, a power management unit 101, a battery 102, a charging protection circuit 104, and a camera 103, as shown in fig. 2, the terminal charging schematic diagram provided by the embodiment of the application is that, during the charging process of the mobile phone terminal, the charging port 100 is connected with an adapter 12 through a data line 11, and the adapter 12 is connected with a power supply. The current is transmitted to a charging port 100 of the mobile phone terminal through a data line 11, the charging port 100 controls whether the current can be transmitted to a battery 102 of the mobile phone terminal through a power management unit 101 and a charging protection circuit 104, so as to control the charging process, and the battery 102 supplies power to other components such as a terminal camera 103.
Wherein the process of controlling charging is implemented according to circuit logic in the charge protection circuit 104.
The first embodiment is as follows:
as shown in fig. 3, a flowchart of a charging control method provided in an embodiment of the present application is applied to a terminal, and the method includes the following steps:
and 300, in the process of charging the battery through the adapter, detecting whether a signal that the temperature of the charging port is higher than a first temperature threshold value and sent by the temperature detection unit is received.
And step 301, if receiving the signal sent by the temperature detection unit, reducing the current input to the battery by the adapter through the first current control unit.
In this application, when the temperature of charging port is higher than first temperature threshold value, in order to prevent terminal and adapter because the condition that the high temperature produced the burnout, reduce the adapter and input the electric current of battery through first current control unit, have the difference in temperature, the temperature constantly reduces, avoids burning terminal and adapter, reduces and is lasted the harm that the work led to the fact the terminal by the heavy current.
During the charging of the terminal battery, according to joule's law, in the presence of current, there is the generation of heat and the temperature is directly proportional to the time, i.e. the longer the charging time, the higher the temperature. It should be noted that, in the case of normal charging, even if the temperature generated by the current is low, the charging port and the adapter are not affected, and in the case of abnormal charging, the charging circuit continues to operate with a large current, a large amount of heat is generated, and the charging port and the adapter are finally burned. In order to prevent the terminal from being overheated, burning the charging port and the adapter or causing the terminal battery to explode, a temperature detection unit is arranged in the charging protection circuit of the terminal, and the temperature detection unit comprises at least one of a thermistor and a temperature sensor for detecting temperature.
The temperature detection unit detects the temperature of the charging port in real time, and when the temperature detection unit detects that the temperature of the charging port is higher than a first temperature threshold value, a signal that the temperature of the charging port is higher than the first temperature threshold value is sent to the main control unit, so that after the main control unit determines that the temperature of the charging port is higher than the first threshold value, the current input to the battery by the adapter through the first current control unit is reduced.
As shown in fig. 4, a charging protection circuit corresponding to the first charging control method provided in the embodiment of the present application includes a temperature detection unit 401, a main control unit 402, a first current control unit 403, and GND (ground line), where:
a temperature detection unit 401, configured to detect whether a temperature of the charging port is higher than a first temperature threshold, and send a signal to the main control unit 402 after the temperature is higher than the first temperature threshold;
the main control unit 402 is connected to the temperature detection unit 401, and is configured to detect whether a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold is received;
the main control unit 402 is further connected to the first current control unit 403, and is configured to receive a signal sent by the temperature detection unit 401 when the temperature of the charging port is higher than the first temperature threshold, and then reduce the current input to the battery by the adapter through the first current control unit by increasing the resistance of the first current control unit.
In one possible implementation manner, the main control unit reduces the current input by the adapter to the battery through the first current control unit by sending a command for increasing the resistance and/or a corresponding adjustment resistance value to the first current control unit; the current can also be adjusted by adjusting the duty ratio of PWM (Pulse Width Modulation); it should be noted that the main control unit controls the first current control unit to increase the resistance value so as to decrease the current input to the battery is implemented by a software program.
As shown in fig. 5, a charging protection circuit corresponding to the second charging control method provided in the embodiment of the present application is provided. A first current control unit in the charging protection circuit comprises a communication chip used for communicating with a main control unit, a plurality of pins of the chip are connected with a plurality of resistors with different resistance values, and the current output by a charging port is reduced by controlling different pins to output high levels, for example, the pin connected with R1 is controlled to output high levels before, and the resistance value of R1 is 10 ohms; at this time, the pin of the control connection R2 outputs high level, the resistance of R2 is 20 ohms, the resistance is increased, and under the condition that the voltage is not changed, the current is reduced.
It should be noted that the circuit configuration of the first current control unit shown in fig. 5 is only for explaining a manner of reducing the current by the first current control unit, and any circuit that can realize the current input to the battery by the adapter through the first current control unit is applicable to the present application.
Example two:
as shown in fig. 6, a flowchart of another charging control method provided in the embodiment of the present application is applied to a terminal, and the method includes the following steps:
And step 610, if the signal sent by the temperature detection unit is received, controlling a switch between the charging port and the grounding wire to be closed.
In the application, when the temperature of the charging port is higher than a first temperature threshold, in order to prevent the charging port and the adapter from being burnt due to overhigh temperature, after the main control unit determines that the temperature of the charging port is higher than the first temperature threshold, the main control unit controls the switch between the charging port and the grounding wire to be closed, so that the charging port is short-circuited, current is prevented from flowing into the battery, the burning of the terminal is avoided, and the damage to the terminal caused by continuous operation of the current is reduced.
The terminal comprises a charging protection circuit, a temperature detection unit is arranged in the charging protection circuit and is used for detecting the temperature of a charging port in real time, and when the temperature detection unit detects that the temperature of the charging port is higher than a first temperature threshold value, a signal that the temperature of the charging port is higher than the first temperature threshold value is sent to the main control unit, so that the main control unit controls the switch between the charging port and the grounding wire to be closed after receiving the signal sent by the temperature detection unit.
As shown in fig. 7, a charging protection circuit corresponding to the third charging control method provided in the embodiment of the present application includes a temperature detection unit 401, a main control unit 402, a first current control unit 403, and a switch 404 located between a charging port and a ground line, GND (ground line), where:
a temperature detection unit 401, configured to detect whether a temperature of the charging port is higher than a first temperature threshold, and send a signal to the main control unit 402 after the temperature is higher than the first temperature threshold;
the main control unit 402 is connected to the temperature detection unit 401, and is configured to detect whether a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold is received;
the main control unit 402 is further connected to the switch 404, and configured to control the switch between the charging port and the ground line to be closed after receiving a signal sent by the temperature detection unit 401 when the temperature of the charging port is higher than the first temperature threshold, so as to prevent current from being input to the battery through the first current control unit.
When the main control unit 402 receives a signal sent by the temperature detection unit 401 when the temperature of the charging port is higher than the first temperature threshold, the main control unit controls the switch between the charging port and the ground line to be closed.
In a possible implementation manner, the main control unit 402 is connected to the switch 404, and is configured to control the switch 404 between the charging port and the ground line to close and detect whether there is current in the charging port after determining that the temperature of the charging port is higher than the first temperature threshold according to a signal sent by the temperature detection unit 401 during charging the battery.
In the present application, when the temperature of the charging port is higher than the first temperature threshold, in order to reduce the temperature of the charging port, it is preferable to control the switch between the charging port and the ground line to be closed, as shown in fig. 7, after the switch between the charging port and the ground line is closed, the charging port is in a short-circuit state, and even if there is current, a short-circuit path is preferable, and at this time, the current is not input into the battery through the first current control unit, so that damage to the terminal is reduced.
In a possible implementation manner, if the adapter for charging the terminal battery is a standard adapter provided with an overcurrent protection mechanism, the charging port has a condition of no current; if the adapter for charging the terminal battery is a non-standard adapter without an overcurrent protection mechanism, the charging port must have current. If the charging port is in a short circuit condition, the charging port continuously has current, the temperature on the short circuit path of the charging port continuously rises at the moment, and finally the terminal is burnt out, so that the terminal is still damaged. Therefore, after the switch between the charging port and the grounding wire is controlled to be closed, whether the charging port has current or not is detected.
If the charging port is detected to have current and the switch disconnection condition is met, the switch between the charging port and the grounding wire is controlled to be disconnected, the resistance value of the first current control unit is increased, and the current input to the battery by the adapter through the first current control unit is reduced.
The first condition is as follows: a current is detected at the charging port.
In the application, after the charging port is detected to have current, the short-circuit path of the charging port is prevented from being burnt, the switch between the charging port and the grounding wire is controlled to be switched off, and the current input to the battery by the adapter through the first current control unit is reduced by increasing the resistance value of the first current control unit; if the switch is closed, the current of the charging port is detected, the switch is immediately opened, the current input to the battery by the adapter through the first current control unit is reduced, and the temperature detected by the temperature detection unit does not change obviously.
The present application thus presents switch off conditions, including:
the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or
The time for which the switch between the charging port and the ground line is closed reaches a set threshold.
When the charging port is detected to have current and the switch disconnection condition is met, the switch between the charging port and the grounding wire is controlled to be disconnected, and the current input to the battery by the adapter through the first current control unit is reduced by increasing the resistance value of the first current control unit.
The condition that this application set up the switch disconnection is according to the temperature decision in the wire, and the temperature is decided by the joule law, and the factor that influences the joule law has electric current, resistance and time, and the temperature is directly proportional with the time, in order to prevent that the port short-circuit path that charges from burning out, control switch disconnection after the switch closure certain time, or the temperature breaks off after reaching the threshold value.
After the control switch is turned off, the main control unit controls the resistance value of the first current control unit to be increased to reduce the current input to the battery in order to protect the charging port, the adapter, and the terminal battery.
In the application, the way that the main control unit reduces the current input to the battery by the adapter through the first current control unit is to send a command for increasing the resistance and/or a corresponding resistance value to the first current control unit; the current can also be adjusted by adjusting the duty ratio of PWM (Pulse Width Modulation); it should be noted that the main control unit controls the first current control unit to increase the resistance value so as to decrease the current input to the battery is implemented by a software program.
As shown in fig. 8, a charging protection circuit diagram corresponding to the fourth charging control method provided in the embodiment of the present application is shown. A first current control unit in the charging protection circuit comprises a communication chip used for communicating with a main control unit, a plurality of pins of the chip are connected with a plurality of resistors with different resistance values, and the current output by a charging port is reduced by controlling different pins to output high levels, for example, the pin connected with R1 is controlled to output high levels before, and the resistance value of R1 is 10 ohms; at this time, the pin of the control connection R2 outputs high level, the resistance of R2 is 20 ohms, the resistance is increased, and under the condition that the voltage is not changed, the current is reduced.
It should be noted that the circuit configuration of the first current control unit shown in fig. 8 is only for explaining a manner of reducing the current by the first current control unit, and any circuit that can realize the current input to the battery by the adapter through the first current control unit is applicable to the present application.
Case two: no current is detected at the charging port.
In the application, when it is detected that the charging port has no current, it is determined that the adapter is a standard adapter provided with an overcurrent protection mechanism, at this time, the charging port has no current output, and a short circuit between the charging port and the ground line has no current flowing therethrough, so that a switch between the charging port and the ground line is kept in a closed state.
In a possible case, the overcurrent protection mechanism of the standard adapter has the condition of intermittent charging, in this case, even when a current exists in a short circuit between the charging port and the ground wire, due to the intermittent charging, the charging is stopped when the charging time reaches a threshold value, and at this time, the short circuit between the charging port and the ground wire does not flow a current and provides a heat dissipation time for a lead between the charging port and the ground wire, so that a switch between the charging port and the ground wire can be continuously kept in a closed state.
Example three:
in the application, in order to provide double guarantee for the terminal, the main control unit controls the first current control unit to stop working after receiving that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value.
In a possible implementation manner, after the temperature detection unit detects that the temperature of the charging port is higher than a first temperature threshold, the temperature detection unit sends a signal that the temperature of the charging port is higher than the first temperature threshold to the main control unit;
after the main control unit determines that the temperature of the charging port is higher than the first temperature threshold value, the main control unit can control the first current control unit to stop working while controlling the switch between the charging port and the grounding wire to be closed.
When the first current control unit is controlled to stop working, no high level output can be generated by controlling a communication chip which is communicated with the main control unit; or the first current control unit is provided with a switch or a transistor and other electronic devices used for controlling whether the circuit is in a conducting state or a closed state, and the first current control unit is controlled to stop working by controlling the electronic devices to be in an open state.
The main control unit controls the switch between the charging port and the ground line to be closed, and detects whether the charging port has current when the first current control unit stops working.
When detecting that the charging port has current, determining that the adapter is a non-standard adapter without an overcurrent protection mechanism, and controlling the switch between the charging port and the grounding wire to be disconnected after the switch disconnection condition is met, wherein the switch disconnection condition comprises: the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or the time that the switch between the charging port and the ground line is closed reaches a set threshold.
After a switch between the charging port and the grounding wire is disconnected, the first current control unit is in a state of stopping working, so that the charging port is in a broken state, but the charging port has current, the first current control unit is controlled to recover working, the resistance value of the first current control unit is increased, the current input to the battery by the adapter through the first current control unit is reduced, namely, the terminal battery is continuously charged by adopting small current, the current is reduced, the generated heat is correspondingly reduced, and the damage to the terminal and the adapter is reduced.
Wherein, the first current control unit is controlled to recover the work as a communication chip which communicates with the main control unit through control to output high level; or the first current control unit is provided with a switch or a transistor and other electronic devices used for controlling whether the circuit is in a conducting state or a closed state, and the first current control unit is controlled to recover to work by controlling the electronic devices to be in the closed state.
When no current is detected in the charging port, the adapter is determined to be a standard adapter provided with an overcurrent protection mechanism, and a switch between the charging port and the grounding wire is kept in a closed state.
Example four:
in order to ensure that the main control unit can successfully detect the current on the short-circuit path under the condition that the charging port is short-circuited, a second current control unit for current detection is arranged between the short-circuit path, namely the charging port and the grounding wire, and the second current control unit is connected with the switch and reports the detected current value of the short-circuit path to the main control unit.
As shown in fig. 9, a charging protection circuit corresponding to the fifth charging control method provided in the embodiment of the present application includes a temperature detection unit 401, a main control unit 402, a switch 404, a first current control unit 403, a second current control unit 405, and GND (ground line), where:
the main control unit 402 is connected to the temperature detection unit 401, and is configured to receive a signal that the temperature of the charging port reported by the temperature detection unit 401 is higher than a first temperature threshold;
the main control unit 402 is connected to the switch 404, and configured to control the switch 404 between the charging port and the ground line to be closed and detect whether there is current between the charging port and the ground line after determining that the temperature of the charging port is higher than the first temperature threshold according to the signal sent by the temperature detection unit 401 during the charging process for the battery.
In this application, the main control unit detects whether there is current between the charging port and the ground line, and mainly determines whether a current value reported by the second current control unit 405 is received, and if the current value reported by the second current control unit 405 is received, it determines that there is current between the charging port and the ground line, otherwise, it determines that there is no current between the charging port and the ground line.
When the second current control unit 405 detects that current exists, the adapter is determined to be a non-standard adapter without an overcurrent protection mechanism, and at this time, after a disconnection condition is met, the switch between the charging port and the ground wire is controlled to be disconnected, and the first current control unit is controlled to reduce the current output by the charging port; the disconnection condition includes: the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or the time that the switch between the charging port and the ground line is closed reaches a set threshold.
When the second current control unit is detected to have no current, the adapter is determined to be a standard adapter provided with an overcurrent protection mechanism, and a switch between the charging port and the grounding wire is kept in a closed state.
In a possible implementation manner, if the second current control unit is provided with an electronic device such as a switch or a transistor for controlling whether the circuit is in the on state or the off state, when the main control unit controls the switch 404 between the charging port and the ground line to be off, it is further necessary to control the electronic device in the second current control unit for controlling whether the circuit is in the on state or the off state to be on state, so as to short-circuit the charging port and the ground line.
Similarly, when the disconnection between the charging port and the ground line is controlled, the switch 404 between the charging port and the ground line may be controlled to be opened, and/or the electronic device for controlling whether the circuit is in the on state or the on state in the second current control unit may be controlled to be in the off state.
It should be noted that the positions of the switch 404 and the second current control unit 405 in fig. 9 may be interchanged.
As shown in fig. 10, a second current control unit in a charging protection circuit corresponding to the fourth charging control method provided in the embodiment of the present application. The second current control unit comprises a switch, a current acquisition unit and a control unit which is communicated with the main control unit. The switch can control the on and off of the circuit, the current acquisition unit is used for acquiring the current value of the current path, and the control unit is used for reporting the acquired current value to the main control unit. In the present application, the current obtaining unit may obtain the precise or rough current value through a resistor or an NTC resistor or other manners.
It should be noted that the circuit configuration of the second current control unit shown in fig. 10 is a circuit configuration for exemplifying acquisition of the short-circuit path current, and any circuit capable of realizing the current acquisition function is applicable to the present application.
In the present application, the above embodiments may be combined with each other, and the technical solution after combination is not described in detail in the present application.
In a possible implementation manner, when detecting whether the charging port has a current, the current detection may be performed in real time, or may be performed periodically, and mainly, whether the current value is combined to the short-circuit path reported by the second current control unit is detected.
In the application, if the second current control unit detects that the current output by the charging port is small on the short-circuit path and can be ignored, the charging port is considered to have no current, and the main control unit is not reported; or when the second current control unit detects that the current of the display end of the adapter on the short-circuit path reaches a certain threshold value, the current of the charging port is considered to exist, and the current value is reported to the main control unit.
In the application, when the main control unit controls the first current control unit to resume working and controls the first current control unit to reduce the current output by the charging port, namely the reduced current is adopted as the charging process of the terminal battery, prompt information is sent to a user to prompt the user that the current charging is abnormal, and the prompt information includes but is not limited to voice prompt, ringing prompt and prompting lamp alarm.
As shown in fig. 11, a flowchart of an overall charging control method provided in the embodiment of the present application includes the following steps:
Based on the same inventive concept, the embodiment of the present application further provides a terminal, where the terminal includes a charging protection circuit, and since the method corresponding to the charging protection circuit in the terminal is the charging control method in the embodiment of the present application, and the principle of the circuit to solve the problem is similar to that of the method, the implementation of the charging protection circuit in the terminal may be implemented by the method, and repeated details are not repeated.
As shown in fig. 12, for the first terminal provided in the embodiment of the present application, the terminal includes a charging port 100, a power management module 101, a battery 102, and a charging protection circuit 104, where the charging protection circuit 104 includes: a temperature detection unit 401, a main control unit 402, and a first current control unit 403, wherein:
a temperature detection unit 401 for detecting the temperature of the charging port 100 during charging of the battery 102 through the adapter, and sending a signal to the main control unit 402 when the temperature of the charging port 100 is higher than a first temperature threshold;
and a main control unit 402 for reducing the current input to the battery 102 by the adapter through the first current control unit 403 after receiving a signal that the temperature of the charging port 100 sent by the temperature detection unit 401 is higher than the first temperature threshold.
In a possible implementation manner, the main control unit 402 is specifically configured to:
after receiving a signal that the temperature of the charging port 100 sent by the temperature detection unit 401 is higher than the first temperature threshold, the resistance value of the first current control unit 403 is increased to decrease the current input by the adapter to the battery 102 through the first current control unit 403.
As shown in fig. 13, a second terminal provided in this embodiment of the present application includes a charging port 100, a power management module 101, a battery 102, and a charging protection circuit 104, where the charging protection circuit 104 includes: temperature detection unit 401, main control unit 402 and switch 404 between the charging port and the ground, wherein:
a temperature detection unit 401 for detecting the temperature of the charging port 100 during charging of the battery 102 through the adapter, and sending a signal to the main control unit 402 when the temperature of the charging port 100 is higher than a first temperature threshold;
and a main control unit 402, configured to control the switch 404 to be closed after receiving a signal that the temperature of the charging port 100 sent by the temperature detection unit 401 is higher than the first temperature threshold.
In a possible implementation manner, the charging protection circuit further includes a first current control unit 403, one end of the first current control unit 403 is connected to the charging port 100, and the other end of the first current control unit 403 is connected to the battery 102;
the main control unit 402 is also used to:
after the control switch 404 is closed, if it is determined that the charging port 100 has a current output and the predetermined switch-off condition is satisfied, the control switch 404 is turned off, and the resistance of the first current control unit 403 is increased to decrease the current input to the battery 102 by the adapter through the first current control unit 403.
In one possible implementation, the switch open condition includes:
the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or
The closing time of the switch between the charging port and the grounding wire reaches a set threshold.
In a possible implementation manner, the charging protection circuit further includes a second current control unit; the second current control unit is positioned between the charging port and the grounding wire and is connected with the switch;
the main control unit 402 is specifically configured to:
and detecting whether the charging port has current or not according to the current value reported by the second current control unit.
The present application further provides a charging control device, as shown in fig. 14, which is a charging control device 1400 provided in the present application, the charging control device includes a first control module 1401 and a second control module 1402, wherein:
a first detection module 1401, configured to detect a temperature of the charging port during charging of the battery through the adapter, and send a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold;
and a first control module 1402, configured to reduce the current input to the battery by the adapter through the first current control unit after receiving a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold.
In a possible implementation manner, the first control module 1402 is specifically configured to:
after a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value is received, the resistance value of the first current control unit is increased to reduce the current input to the battery by the adapter through the first current control unit.
As shown in fig. 15, the present application provides another charging control apparatus 1500 according to an embodiment of the present application, where the charging control apparatus includes a second detection module 1501 and a second control module 1502, where:
a second detection module 1501, configured to detect a temperature of the charging port during charging of the battery through the adapter, and send a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold;
and the second control module 1502 is configured to control the switch to be closed after receiving a signal that the temperature of the charging port sent by the temperature detection unit is higher than the first temperature threshold.
In a possible implementation manner, the charging protection circuit further includes a first current control unit, one end of the first current control unit is connected to the charging port, and the other end of the first current control unit is connected to the battery;
the second control module 1502 is further configured to:
after the control switch is closed, if the charging port is determined to have current output and the preset switch disconnection condition is determined to be met, the control switch is disconnected, the resistance value of the first current control unit is increased, and the current input to the battery by the adapter through the first current control unit is reduced.
In one possible implementation, the switch open condition includes:
the temperature of a wire between the charging port and the grounding wire is greater than a second temperature threshold; and/or
The time for which the switch between the charging port and the ground line is closed reaches a set threshold.
In a possible implementation manner, the charging protection circuit further includes a second current control unit; the second current control unit is positioned between the charging port and the grounding wire and is connected with the switch;
the second control module 1502 is further configured to:
and detecting whether the charging port has current or not according to the current value reported by the second current control unit.
An embodiment of the present application provides a readable storage medium, which is a non-volatile storage medium, and the readable storage medium is a non-volatile readable storage medium, and includes program code, when the program code runs on a computing device, the program code is configured to cause the computing device to execute the charging control method.
Embodiments of the present application provide a computer program product containing instructions that, when run on a computer, cause the computing device to perform the above-described charging control method.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A terminal is characterized in that the terminal comprises a charging protection circuit, a charging port and a battery, wherein the charging protection circuit comprises: temperature detecting element, main control unit and first current control unit, wherein:
the temperature detection unit is used for detecting the temperature of the charging port in the process of charging the battery through the adapter and sending a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold value;
and the main control unit is used for reducing the current input to the battery by the adapter through the first current control unit after receiving the signal that the temperature of the charging port is higher than the first temperature threshold value and sent by the temperature detection unit.
2. The terminal of claim 1, wherein the master control unit is specifically configured to:
after a signal that the temperature of the charging port sent by the temperature detection unit is higher than a first temperature threshold value is received, the resistance value of the first current control unit is increased so as to reduce the current input to the battery by the adapter through the first current control unit.
3. A terminal is characterized in that the terminal comprises a charging protection circuit, a charging port and a battery, wherein the charging protection circuit comprises: temperature detecting element, main control unit, be located charge port and the switch between the earth connection, wherein:
the temperature detection unit is used for detecting the temperature of a charging port in the process of charging the battery through the adapter and sending a signal to the main control unit when the temperature of the charging port is higher than a first temperature threshold value;
and the main control unit is used for controlling the switch to be closed after receiving the signal that the temperature of the charging port sent by the temperature detection unit is higher than the first temperature threshold value.
4. The terminal of claim 3, wherein the charge protection circuit further comprises a first current control unit, one end of the first current control unit is connected to the charge port, and the other end of the first current control unit is connected to the battery;
the master control unit is further configured to:
after the switch is controlled to be closed, if the charging port is determined to have current output and the preset switch disconnection condition is determined to be met, the switch is controlled to be disconnected, the resistance value of the first current control unit is increased, and the current input to the battery by the adapter through the first current control unit is reduced.
5. The terminal of claim 4, wherein the switch open condition comprises:
the temperature of a wire between the charging port and the ground wire is greater than a second temperature threshold; and/or
And the closing time of a switch between the charging port and the grounding wire reaches a set threshold.
6. The terminal of claim 4, wherein the charge protection circuit further comprises a second current control unit; the second current control unit is positioned between the charging port and the grounding wire and is connected with the switch;
the main control unit is specifically configured to:
and detecting whether the charging port has current according to the current value reported by the second current control unit.
7. A charging control method is applied to a terminal, and comprises the following steps:
in the process of charging the battery through the adapter, detecting whether a signal that the temperature of a charging port sent by a temperature detection unit is higher than a first temperature threshold value is received;
and if the signal sent by the temperature detection unit is received, reducing the current input to the battery by the adapter through the first current control unit.
8. The method of claim 7, wherein reducing the current input to the battery by the adapter through the first current control unit comprises:
after the signal sent by the temperature detection unit is received, the resistance value of the first current control unit is increased so as to reduce the current input to the battery by the adapter through the first current control unit.
9. A charging control method is applied to a terminal, and comprises the following steps:
in the process of charging the battery through the adapter, detecting whether a signal that the temperature of a charging port sent by a temperature detection unit is higher than a first temperature threshold value is received;
and if the signal sent by the temperature detection unit is received, controlling a switch between the charging port and the grounding wire to be closed.
10. The method of claim 9, further comprising:
after the switch is controlled to be closed, if the charging port is determined to have current output and the preset switch disconnection condition is determined to be met, the switch is controlled to be disconnected, the resistance value of the first current control unit is increased, and the current input to the battery by the adapter through the first current control unit is reduced;
wherein the switch off condition comprises:
the temperature of a wire between the charging port and the ground wire is greater than a second temperature threshold; and/or
And the closing time of a switch between the charging port and the grounding wire reaches a set threshold.
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|---|---|---|---|
| CN202010361991.1A CN111525643A (en) | 2020-04-30 | 2020-04-30 | Terminal and charging control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010361991.1A CN111525643A (en) | 2020-04-30 | 2020-04-30 | Terminal and charging control method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255253A (en) * | 1997-05-05 | 2000-05-31 | 艾利森公司 | Battery with charge control circuitary |
| CN1421063A (en) * | 1999-10-22 | 2003-05-28 | 泰科电子有限公司 | Devices and methods for protection of rechargeable elements |
| CN106532639A (en) * | 2016-12-28 | 2017-03-22 | 珠海市魅族科技有限公司 | Charging system, over-temperature protection device and related equipment of over-temperature protection device |
| US20170310132A1 (en) * | 2016-04-20 | 2017-10-26 | Braun Gmbh | Circuit arrangement for protection against an undue overheating |
| CN108390117A (en) * | 2018-03-14 | 2018-08-10 | 维沃移动通信有限公司 | Charging method and mobile terminal |
| CN109728631A (en) * | 2019-01-31 | 2019-05-07 | 维沃移动通信有限公司 | A kind of charging circuit and electronic equipment |
-
2020
- 2020-04-30 CN CN202010361991.1A patent/CN111525643A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255253A (en) * | 1997-05-05 | 2000-05-31 | 艾利森公司 | Battery with charge control circuitary |
| CN1421063A (en) * | 1999-10-22 | 2003-05-28 | 泰科电子有限公司 | Devices and methods for protection of rechargeable elements |
| US20170310132A1 (en) * | 2016-04-20 | 2017-10-26 | Braun Gmbh | Circuit arrangement for protection against an undue overheating |
| CN106532639A (en) * | 2016-12-28 | 2017-03-22 | 珠海市魅族科技有限公司 | Charging system, over-temperature protection device and related equipment of over-temperature protection device |
| CN108390117A (en) * | 2018-03-14 | 2018-08-10 | 维沃移动通信有限公司 | Charging method and mobile terminal |
| CN109728631A (en) * | 2019-01-31 | 2019-05-07 | 维沃移动通信有限公司 | A kind of charging circuit and electronic equipment |
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