CN106026264B - The method and device of terminal short circuit protection - Google Patents
The method and device of terminal short circuit protection Download PDFInfo
- Publication number
- CN106026264B CN106026264B CN201610474895.1A CN201610474895A CN106026264B CN 106026264 B CN106026264 B CN 106026264B CN 201610474895 A CN201610474895 A CN 201610474895A CN 106026264 B CN106026264 B CN 106026264B
- Authority
- CN
- China
- Prior art keywords
- control electronics
- battery
- circuit
- terminal
- charger
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000004044 response Effects 0.000 claims abstract description 73
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 22
- 238000011084 recovery Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 12
- 108010076504 Protein Sorting Signals Proteins 0.000 claims 1
- 238000010009 beating Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 abstract description 10
- 238000007726 management method Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000002269 spontaneous effect Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 8
- 238000004880 explosion Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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
- 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
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H02J7/0088—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The disclosure is directed to the method and devices of terminal short circuit protection.Corresponding fast temperature response device is mounted at least one first electronic component relevant to charge and discharge in the system of the terminal, and at least one in the system of the terminal and the corresponding control electronics of first electronic component signal generating device corresponding with the fast temperature response device connect, this method comprises: the control electronics receive the interrupt signal that the signal generating device is sent, wherein, the interrupt signal is when the temperature of at least one fast temperature response units test reaches corresponding given threshold, what the signal generating device generated；Cut off circuit relevant to power supply.In this way, control electronics can be cut off circuit relevant to power supply and improve the safety of terminal to will not have lasting energy to destroy terminal after causing electronic component temperature to increase arrival given threshold due to short circuit.
Description
Technical field
This disclosure relates to intelligent terminal technical field more particularly to the method and device of terminal short circuit protection.
Background technique
With the development of intelligent terminal technology, terminal is not only a communication tool, can also carry out other applications,
Such as: carry out web page browsing, multimedia, instant messaging etc..In this way, terminal is commonly used, so that terminal also can be by
Frequent progress charge or discharge.
Terminal may cause spontaneous combustion because some micro-short circuit occur in charge or discharge, explode, the events such as electric shock
Occur, therefore, is badly in need of carrying out short-circuit protection to terminal, improves the safety of terminal.
Summary of the invention
The embodiment of the present disclosure provides the method and device of terminal short circuit protection.The technical solution is as follows:
According to the first aspect of the embodiments of the present disclosure, a kind of method of terminal short circuit protection, the system of the terminal are provided
In be mounted with corresponding fast temperature response device, and the terminal at least one first electronic component relevant to charge and discharge
System at least one control electronics corresponding with first electronic component and the fast temperature response device pair
The signal generating device connection answered, the method can include:
The control electronics receive the interrupt signal that the signal generating device is sent, wherein the interrupt signal
It is when the temperature of at least one fast temperature response units test reaches corresponding given threshold, the signal generating device is raw
At；
Cut off circuit relevant to power supply.
As it can be seen that fast temperature response device is mounted on circuit relevant to charge and discharge, once in this way, terminal is in charge and discharge
Micro-short circuit has occurred in electric process, and the temperature of fast temperature response units test can reach corresponding given threshold, thus, control electricity
Subcomponent can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent, and cutting and power supply
Relevant circuit reduces spontaneous combustion, explosion to will not have lasting energy to destroy terminal, and the events such as electric shock occur
Probability improves the safety of terminal.
In one embodiment, first electronic component includes: battery, charger, terminal charge interface element or main
One in plate circuit element.
As it can be seen that can carry out short-circuit protection in many aspects there are many electronic components relevant to charge and discharge, further increase
The safety of terminal.
In one embodiment, cutting circuit relevant to power supply includes:
When the control electronics are power management chip corresponding with the motherboard circuit element, the master is controlled
The switch that plate circuit element is connect with the battery is opened, and the connection of the motherboard circuit element and the battery is cut off；
When the control electronics are that charger corresponding with the charger controls chip, the charger is closed
Output；
When the control electronics are battery protection chip corresponding with the battery, control is connect with the battery
Analog circuit switch open, cut off the output of the battery.
Certainly, control electronics are different, and cutting circuit relevant to power supply is also different, and each control electronics can
Circuit relevant to power supply is cut off, the safety of terminal is further improved.
In one embodiment, the fast temperature response device includes:
One in temperature sensor, NTC thermistor or thermocouple.
As it can be seen that the type of fast temperature response device be also it is diversified, can apply different scenes so that phone protect
Shield process is more flexible.
In one embodiment, after cutting circuit relevant to power supply, further includes:
Detect the load current of corresponding first electronic component；
When the load current detected is less than corresponding setting electric current, restore the circuit relevant to power supply.
As it can be seen that circuit relevant to power supply can be restored by the inspection of load current, in this way, reduce because of high temperature or
The probability that other factors cause short circuit to be judged by accident, further increases the accuracy rate of short-circuit protection.
In one embodiment, before circuit relevant to power supply described in the recovery, further includes:
By the fast temperature response device on first electronic component, corresponding first electronic component is detected
Temperature；
When the temperature of detection is less than given threshold, restore the circuit relevant to power supply.
Certainly, it can restore circuit relevant to power supply under electric current and the duplicate protection of temperature, not only improve short-circuit protection
Accuracy rate, while also ensure electronic component using safe.
In one embodiment, circuit relevant to power supply described in the recovery includes:
When the control electronics are that charger corresponding with the charger controls chip, the charger is opened
Output；
When the control electronics are battery protection chip corresponding with the battery, control is connect with the battery
Analog circuit close the switch, restore the output of the battery.
As it can be seen that different control electronics, the process for restoring circuit relevant to power supply is also different, in this way, control
Electronic component processed can all restore circuit relevant to power supply, it is ensured that the normal use of terminal improves the experience of user.
According to the second aspect of an embodiment of the present disclosure, a kind of device of terminal short circuit protection, the system of the terminal are provided
In be mounted with corresponding fast temperature response device, and the terminal at least one first electronic component relevant to charge and discharge
System at least one control electronics corresponding with first electronic component and the fast temperature response device pair
The signal generating device connection answered, described device are applied in the control electronics, the device can include:
Receiving module, the interrupt signal sent for receiving the signal generating device, wherein the interrupt signal is to work as
When the temperature of at least one fast temperature response units test reaches corresponding given threshold, the signal generating device is generated
's；
Module is cut off, for cutting off circuit relevant to power supply.
As it can be seen that fast temperature response device is mounted on circuit relevant to charge and discharge, once in this way, terminal is in charge and discharge
Micro-short circuit has occurred in electric process, and the temperature of fast temperature response units test can reach corresponding given threshold, thus, control electricity
Subcomponent can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent, and cutting and power supply
Relevant circuit reduces spontaneous combustion, explosion to will not have lasting energy to destroy terminal, and the events such as electric shock occur
Probability improves the safety of terminal.
In one embodiment, the cutting module includes:
First cutting submodule, for being power supply pipe corresponding with the motherboard circuit element when the control electronics
When managing chip, control the switch opening that the motherboard circuit element connect with the battery, cut off the motherboard circuit element and
The connection of the battery；
Second cutting submodule, for being that charger corresponding with the charger controls core when the control electronics
When piece, the output of the charger is closed；
Third cuts off submodule, for being battery protection chip corresponding with the battery when the control electronics
When, it controls the analog circuit switch connecting with the battery and opens, cut off the output of the battery.
Certainly, control electronics are different, and cutting circuit relevant to power supply is also different, and each control electronics can
Circuit relevant to power supply is cut off, the safety of terminal is further improved.
In one embodiment, described device may also include that
First detection module, for detecting the load current of corresponding first electronic component；
First judgment module, for calling and restoring when the load current detected is less than corresponding setting electric current
Module；
Recovery module, for restoring the circuit relevant to power supply.
As it can be seen that circuit relevant to power supply can be restored by the inspection of load current, in this way, reduce because of high temperature or
The probability that other factors cause short circuit to be judged by accident, further increases the accuracy rate of short-circuit protection.
In one embodiment, described device may also include that
Second detection module is connect with the first judgment module, for by quick on first electronic component
Temperature-responsive device detects the temperature of corresponding first electronic component；
Second judgment module, for calling the recovery module when the temperature of detection is less than given threshold.
Certainly, it can restore circuit relevant to power supply under electric current and the duplicate protection of temperature, not only improve short-circuit protection
Accuracy rate, while also ensure electronic component using safe.
In one embodiment, the recovery module can include:
First restores submodule, for being that charger corresponding with the charger controls core when the control electronics
When piece, the output of the charger is opened；
Second restores submodule, for being battery protection chip corresponding with the battery when the control electronics
When, it controls the analog circuit connecting with the battery and closes the switch, restore the output of the battery.
As it can be seen that different control electronics, the process for restoring circuit relevant to power supply is also different, in this way, control
Electronic component processed can all restore circuit relevant to power supply, it is ensured that the normal use of terminal improves the experience of user.
According to the third aspect of an embodiment of the present disclosure, a kind of device of terminal short circuit protection is provided, is used in terminal system,
Include:
The first electronic component relevant to charge and discharge, and control electronics corresponding with first electronic component；
Wherein,
Corresponding fast temperature response device is mounted at least one described electronic component；
The signal generator being connect with each fast temperature response device；
At least one control electronics is connect with the signal generating device；
The control electronics receive the interrupt signal that the signal generating device is sent, wherein the terminal signaling
It is when the temperature of at least one fast temperature response units test reaches corresponding given threshold, the signal generating device is raw
At；
The control electronics cut off circuit relevant to power supply.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In above-mentioned technical proposal, fast temperature response device is mounted on circuit relevant to charge and discharge, in this way, once
Micro-short circuit has occurred in charge and discharge process in terminal, and the temperature of fast temperature response units test can reach corresponding given threshold,
To, control electronics can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent,
And circuit relevant to power supply is cut off, and to there will not be lasting energy to destroy terminal, spontaneous combustion is reduced, is exploded, electric shock
Etc. events odds, improve the safety of terminal.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is the flow chart of terminal short circuit guard method shown according to an exemplary embodiment.
Fig. 2 is the terminal system schematic diagram according to the terminal short circuit protection shown in an exemplary embodiment one.
Fig. 3 is the flow chart according to the terminal short circuit guard method shown in an exemplary embodiment one.
Fig. 4 is the terminal system schematic diagram according to the terminal short circuit protection shown in an exemplary embodiment two.
Fig. 5 is the flow chart according to the terminal short circuit guard method shown in an exemplary embodiment two.
Fig. 6 is the block diagram of terminal short circuit protective device shown according to an exemplary embodiment.
Fig. 7 is the block diagram according to the terminal short circuit protective device shown in an exemplary embodiment three.
Fig. 8 is the block diagram according to the terminal short circuit protective device shown in an exemplary embodiment four.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
In the embodiment of the present disclosure, the terminal system of terminal and the composable charge and discharge of charger, i.e., in the system of terminal
It include: terminal, charger.Certainly, there is specifically electronic component relevant to charge and discharge in terminal, and also have in charger specific
Electronic component relevant to charge and discharge.Here, electronic component relevant to charge and discharge i.e. the first electronics member in the system of terminal
Part, wherein the first electronic component includes: one in battery, charger, terminal charge interface element or motherboard circuit element.
It include multiple first electronics such as battery, charger, terminal charge interface element and motherboard circuit element i.e. in the system of terminal
Element.Equally, there are also control electronics corresponding with the first electronic component in terminal system.Such as: the first electronic package
It includes: one in battery, charger, terminal charge interface element or motherboard circuit element.So control electronics include:
Power management chip corresponding with motherboard circuit element, charger corresponding with charger control chip, or corresponding with battery
One in battery protection chip.
Therefore, in the embodiment of the present disclosure, the system of terminal charge and discharge, i.e. terminal system include: battery, charger, terminal
Charging interface element, motherboard circuit element, power management chip, charger control chip, battery protection chip etc..
The technical solution that the embodiment of the present disclosure provides can carry out some changes to the system of terminal, realize short-circuit protection.Its
In, fast temperature response device is mounted on the first electronic component relevant to charge and discharge, once in this way, terminal is in charge and discharge
Micro-short circuit has occurred in process, and the temperature of fast temperature response units test can reach corresponding given threshold, thus, control electronics
Element can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent, and cut off and power supply phase
The circuit of pass reduces spontaneous combustion, explosion to will not have lasting energy to destroy terminal, and the events such as electric shock occur several
Rate improves the safety of terminal.
The system of terminal is changed can include: in these first electronic components, there is one, it is two or more to be mounted with
Corresponding fast temperature response device is mounted with corresponding fast temperature response device at least one first electronic component.
Such as: in the system of terminal, it is mounted with temperature sensor in the battery, alternatively, being mounted with respectively in battery and charger pair
The temperature sensor answered is mounted with NTC thermistor alternatively, being mounted with temperature sensor in the battery in charger, and
Thermocouple etc. is mounted in motherboard circuit element, here, fast temperature response device includes: temperature sensor, NTC temperature-sensitive
One in resistance or thermocouple.
Also, each fast temperature response device is connect with signal generating device, and has one, two or multiple controls
Electronic component processed is connect with signal generating device.Such as: power management chip is connect with signal generating device, alternatively, power supply pipe
Reason chip and charger control chip are connect with signal generating device respectively, alternatively, power management chip, charger control chip
And battery protection chip is all connect with signal generating device respectively.
Therefore, terminal system includes: the first electronic component relevant to charge and discharge, and corresponding with the first electronic component
Control electronics；Wherein, corresponding fast temperature response device is mounted at least one electronic component；With each quick temperature
The signal generator of degree response device connection；At least one control electronics is connect with signal generating device.Such as: terminal system
In system, it is separately installed with a fast temperature in battery, charger, terminal charge interface element and motherboard circuit element and rings
Device is answered, each fast temperature response device is connect with signal generator, and charger only corresponding with charger controls chip
It is connect with signal generator.Alternatively, battery and charger are separately installed with a fast temperature response device, often in terminal system
A fast temperature response device is connect with signal generator, and charger corresponding with charger controls chip, and and battery
Corresponding battery protection chip is all connect with signal generator.Alternatively, in terminal system, battery, charger and motherboard circuit
A fast temperature response device is separately installed in element, each fast temperature response device is connect with signal generator, and with
The corresponding power management chip of motherboard circuit element, charger corresponding with charger control chip, and corresponding with battery
Battery protection chip is all connect with signal generator.
After being changed to terminal system, short-circuit protection can be carried out to terminal.
Fig. 1 is the flow chart of terminal short circuit guard method shown according to an exemplary embodiment, as shown in Figure 1, including
Following steps S101-S102:
In step s101, the interrupt signal that signal generating device is sent is received, wherein interrupt signal is when at least one
When the temperature of fast temperature response units test reaches corresponding given threshold, what signal generating device generated.
In the embodiment of the present disclosure, control electronics are connect with signal generating device, such as: increase in power management chip
Add one-wire interface, connect by one-wire interface with signal generator, alternatively, controlling core in power management chip, charger respectively
Increase one-wire interface in piece and battery protection chip, in this way, power management chip, charger control core by one-wire interface
Piece and battery protection chip are connect with signal generator respectively.
To which control electronics can receive the signal that signal generating device is sent.
Terminal system is in charge and discharge, it is possible that micro-short circuit, in this way, the first electronic component relevant to charge and discharge is just
Temperature can be caused to increase because electric current is excessive, here, due to having fast temperature response device is installed on the first electronic component,
To, when the temperature for having the fast temperature response units test on first electronic component reaches corresponding given threshold,
Determination has been likely to occur micro-short circuit event, at this point, the signal generator connecting with fast temperature response device will generate interruption
Signal.Certainly, if the temperature of the fast temperature response units test on two or more first electronic components arrives separately at correspondence
Given threshold when, then the probability for being determined to be micro-short circuit event can be improved, at this point, signal generator can also generate interruption letter
Number.Wherein, it is quickly increased since micro-short circuit event will cause the first electronic component temperature, therefore, it is necessary in the first electronics
Fast temperature response device, such as temperature sensor, NTC thermistor or thermocouple are installed on element.Therefore, fast temperature
Respond device can include: one in temperature sensor, NTC thermistor or thermocouple.
In this way, signal generating device sends to control electronics and interrupts by the connection between control electronics
Signal, thus, control electronics receive the interrupt signal that signal generating device is sent.Certainly, it is connect with signal generating device
Control electronics may have it is multiple, thus signal generating device send interrupt signal time be also not necessarily simultaneously, can
With pre-set priority, for example, first issuing charger control chip, then power management chip is issued, be then issued to battery protection core
Piece etc..It certainly, can be according to the size to terminal destructive power come the priority of default control electronic component, or according to other come pre-
If the priority of control electronics.
In step s 102, circuit relevant to power supply is cut off.
During the disclosure is implemented, control electronics may be power management chip, charger control chip or battery protection
Chip etc..The process that each control electronics cut off circuit relevant to power supply is not necessarily identical, comprising: when control electronics member
When part is power management chip corresponding with motherboard circuit element, the switch that control mainboard circuit element is connect with battery is opened,
Cut off the connection of motherboard circuit element and battery；When control electronics are that charger corresponding with charger controls chip,
The output turned off the charger；When control electronics are battery protection chip corresponding with battery, what control was connect with battery
Analog circuit switch is opened, and the output of battery is cut off.
Due to there is one, two or more control electronics are connect with signal generating device, then, receive interruption letter
Number control electronics just will do it the operation of relevant to the power supply circuit of corresponding cutting.In this way, having cut off terminal part
For the power supply of circuit perhaps whole circuits for terminal part circuit or whole circuits, it is broken that not lasting energy carries out circuit
It is broken, protects the corresponding circuit of terminal system, improve the safety of terminal.
Such as: after charger control chip receives interrupt signal, the output turned off the charger, in this way, charger will not
As terminal provides electric current.After power management chip receives interrupt signal, what control mainboard circuit element was connect with battery is opened
It closes and opens, cut off the connection of motherboard circuit element and battery.After battery protection chip receives interrupt signal, control connects with battery
The analog circuit switch connect is opened, and the output of battery is cut off.
As it can be seen that fast temperature response device is mounted on the first electronic component relevant to charge and discharge, in this way, once eventually
Micro-short circuit has occurred in charge and discharge process in end, and the temperature of fast temperature response units test can reach corresponding given threshold, from
And control electronics can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent, and
Circuit relevant to power supply is cut off, to there will not be lasting energy to destroy terminal, reduces spontaneous combustion, explosion, electric shock etc.
Event odds improves the safety of terminal.
In the embodiment of the present disclosure, when being more than corresponding given threshold due to the temperature of the first electronic component, it will make
Control element cuts off circuit relevant to power supply.Once but troubleshooting or other reasons, some control electronics are also
It need to restore circuit relevant to power supply.
Therefore, in one embodiment of the disclosure, after cutting circuit relevant to power supply, further includes: detection corresponding first
The load current of electronic component；When the load current detected is less than corresponding setting electric current, restore electricity relevant to power supply
Road.Such as: when charger control chip or battery protection chip detect that load current is less than corresponding setting electric current, then can
Short circuit event can not occur, at this point, restoring circuit relevant to power supply.As it can be seen that can be restored by the inspection of load current
Circuit relevant to power supply further increases short circuit in this way, reducing because high temperature or other factors lead to the short-circuit probability judged by accident
The accuracy rate of protection.
Certainly, although detecting that load current is less than corresponding setting electric current, the temperature of the first electronic component may
Still higher, if restoring power circuit, the first electronic component may be caused to break down, therefore, one embodiment of the disclosure
In, before recovery circuit relevant to power supply, further includes: pass through the fast temperature response device on the first electronic component, detection
The temperature of corresponding first electronic component；When the temperature of detection is less than given threshold, restore circuit relevant to power supply.This
Sample can restore circuit relevant to power supply under electric current and the duplicate protection of temperature, not only improve the accuracy rate of short-circuit protection,
Simultaneously also ensure electronic component using safe.
Certainly, control electronics are different, and it is also not identical to restore circuitry processes relevant to power supply, comprising: when control electricity
When subcomponent is that charger corresponding with charger controls chip, the output of charger is opened；When control electronics are and electricity
When the corresponding battery protection chip in pond, controls the analog circuit connecting with battery and close the switch, restore the output of battery.
As it can be seen that different control electronics, the process for restoring circuit relevant to power supply is also different, in this way, control
Electronic component processed can all restore circuit relevant to power supply, it is ensured that the normal use of terminal improves the experience of user.
Below by operating process set into specific embodiment, the method that the embodiment of the present disclosure provides is illustrated.
Embodiment one in the present embodiment, is equipped with temperature sensor, temperature sensor and letter in charger in terminal system
The connection of number generating device, and charger corresponding with charger control chip is also connect with signal generator.
Fig. 2 is according to the terminal system schematic diagram of the terminal short circuit protection shown in an exemplary embodiment one, such as Fig. 2 institute
Show, terminal system includes: charger 2100 and terminal 2200, wherein charger 2100 is equipped with temperature sensor 2110, Yi Jichong
Electrical equipment control chip 2120.And there is signal generating device 2210 in terminal 2200.Temperature sensor 2110 and charger control
Chip 2120 is all connect with signal generating device 2210.
Fig. 3 is according to the flow chart of the terminal short circuit guard method shown in an exemplary embodiment one, as shown in figure 3, packet
Include following steps S301-S302:
In step S301, charger controls chip and receives the interrupt signal that signal generating device is sent, wherein interrupts letter
When number being that the temperature of the temperature sensor in charger reaches corresponding given threshold, what signal generating device generated.
In step s 302, the output that charger control chip turns off the charger.
Here, after the output that charger control chip turns off the charger, no electric current can be input to terminal, protect end
End, improves the safety of terminal.
In embodiment two, the present embodiment, temperature is separately installed in battery, charger and motherboard circuit in terminal system
Sensor, each temperature sensor is connect with signal generating device, and battery protection chip corresponding with battery, with charger
Corresponding charger controls chip, and power management chip corresponding with motherboard circuit element is also connect with signal generator respectively.
Fig. 4 is according to the terminal system schematic diagram of the terminal short circuit protection shown in an exemplary embodiment two, such as Fig. 4 institute
Show, terminal system includes: charger 4100 and terminal 4200, wherein charger 4100 is equipped with temperature sensor 4110, Yi Jichong
Electrical equipment control chip 4120.And have signal generating device 4210 in terminal 4200, and battery 4220, motherboard circuit element 4230.And
There are temperature sensor 4221 and battery protection chip 4222 on battery 4220, has temperature sensor on motherboard circuit element 4230
4231 and power management chip 4232.
Wherein, each temperature sensor is connect with signal generating device 4210.And charger controls chip 4120, battery
Protection chip 4222 and power management chip 4232 are also connect with signal generating device 4210 respectively.
Fig. 5 is according to the flow chart of the terminal short circuit guard method shown in an exemplary embodiment two, as shown in figure 5, packet
Include following steps S501-S509:
In step S501, signal generating device receives the overtemperature signal of at least one temperature sensor transmission, and raw
At interrupt signal, wherein overtemperature signal is that the temperature of the first electronic component where temperature sensor detection reaches corresponding setting
It is sent when threshold value.
Here, the first electronic component includes: battery, charger or motherboard circuit element.That is battery, charger and mainboard electricity
Any one or more temperature sensors detects that temperature reaches corresponding given threshold constantly in circuit component, the temperature sensing
Device sends overtemperature signal to signal generating device, thus, signal generating device generates interrupt signal.
In step S502, signal generating device is respectively to charger control chip, battery protection chip and power supply pipe
It manages chip and sends interrupt signal.
It here, can be according to preset delay time respectively to charger control chip, battery protection chip and power supply pipe
It manages chip and sends interrupt signal, wherein delay time corresponding with charger control chip is less than corresponding with power management chip
Delay time, and and the corresponding delay time of power management chip be less than delay time corresponding with battery protection chip.
In step S503, after charger control chip receives interrupt signal, the output that control chip turns off the charger,
It is transferred in step S506.
In step S504, after power management chip receives interrupt signal, control mainboard circuit element is connect with battery
Switch open, cut off motherboard circuit element and battery connection.
In step S505, after battery protection chip receives interrupt signal, controls the analog circuit connecting with battery and open
It closes and opens, cut off the output of battery, and be transferred to step S508.
Here, due to charger control chip, battery protection chip and power management chip receive interrupt signal when
Between it is different, therefore the time executed is not also identical, these three steps can be with parallel processing.
In step S506, charger control chip judges whether the load current of charger is less than corresponding setting electricity
Stream? if so, executing step S507, otherwise, return step S503.
Here, current detecting can be carried out, short circuit event odds is further increased.If load current is greater than or equal to
Corresponding setting electric current, then may have occurred short circuit event, need return step S503, relevant circuit of cutting off the power, if load
Electric current is less than corresponding setting electric current, then may be therefore heating caused by environment temperature is excessively high need to execute step S507.
In step s 507, charger control chip opens the output of charger.
Due to may be there is no short circuit event, then charger control chip restores circuit relevant to power supply, that is, charges
Device controls the output that chip opens charger.In this way, reduce erroneous judgement probability so that terminal can normal use, improve user
Experience.
Does battery protection chip judge that the load current of battery is less than corresponding setting electric current in step S508? if
It is to execute step S509, otherwise, return step S505.
Equally, current detecting can be carried out, short circuit event odds is further increased.If load current is greater than or equal to
Corresponding setting electric current, then may have occurred short circuit event, need return step S505, relevant circuit of cutting off the power, if load
Electric current is less than corresponding setting electric current, then may be therefore heating caused by environment temperature is excessively high need to execute step S509.
In step S509, the analog circuit that battery protection chip control is connect with battery is closed the switch, and restores battery
Output.
Equally, battery protection chip restores circuit relevant to power supply.
As it can be seen that fast temperature response device is mounted on circuit relevant to charge and discharge, in this way, one in the present embodiment
Micro-short circuit has occurred in charge and discharge process in denier terminal, and the temperature of fast temperature response units test can reach corresponding setting threshold
Value, thus, control electronics can receive the interruption letter that the signal generating device connecting with fast temperature response device is sent
Number, and circuit relevant to power supply is cut off, to there will not be lasting energy to destroy terminal, reduce spontaneous combustion, explosion, electricity
It the events odds such as hits, improves the safety of terminal.Also, by the inspection of load current, can restore and power supply
Relevant circuit further increases short-circuit protection in this way, reducing because high temperature or other factors lead to the short-circuit probability judged by accident
Accuracy rate.
Following is embodiment of the present disclosure, can be used for executing embodiments of the present disclosure.
Fig. 6 is the block diagram of terminal short circuit protective device shown according to an exemplary embodiment, which can be by soft
Part, hardware or both are implemented in combination with as some or all of of electronic equipment.It is related to charge and discharge in the system of terminal
At least one first electronic component on be mounted with corresponding fast temperature response device, and at least one in the system of terminal with
The signal generating device connection corresponding with fast temperature response device of the corresponding control electronics of first electronic component, device are answered
For in control electronics.As shown in fig. 6, the terminal short circuit protective device includes: receiving module 610 and cutting module 620.
Wherein,
Receiving module 610 is configured as receiving the interrupt signal that signal generating device is sent, wherein interrupt signal is to work as
When the temperature of at least one fast temperature response units test reaches corresponding given threshold, what signal generating device generated.
Module 620 is cut off, cutting circuit relevant to power supply is configured as.
As it can be seen that fast temperature response device is mounted on circuit relevant to charge and discharge, once in this way, terminal is in charge and discharge
Micro-short circuit has occurred in electric process, and the temperature of fast temperature response units test can reach corresponding given threshold, thus, control electricity
Subcomponent can receive the interrupt signal that the signal generating device connecting with fast temperature response device is sent, and cutting and power supply
Relevant circuit reduces spontaneous combustion, explosion to will not have lasting energy to destroy terminal, and the events such as electric shock occur
Probability improves the safety of terminal.
In an embodiment of the present disclosure, cutting module 620 includes:
First cutting submodule is configured as when control electronics being power management core corresponding with motherboard circuit element
When piece, the switch that control mainboard circuit element is connect with battery is opened, and cuts off the connection of motherboard circuit element and battery.
Second cutting submodule is configured as when control electronics being that charger corresponding with charger controls chip
When, the output that turns off the charger.
Third cuts off submodule, is configured as the control when control electronics are battery protection chip corresponding with battery
It makes the analog circuit switch connecting with battery to open, cuts off the output of battery.
Certainly, control electronics are different, and cutting circuit relevant to power supply is also different, and each control electronics can
Circuit relevant to power supply is cut off, the safety of terminal is further improved.
In an embodiment of the present disclosure, device may also include that
First detection module is configured as detecting the load current of corresponding first electronic component.
First judgment module is configured as calling and restoring when the load current detected is less than corresponding setting electric current
Module.
Recovery module is configured as restoring circuit relevant to power supply.
As it can be seen that circuit relevant to power supply can be restored by the inspection of load current, in this way, reduce because of high temperature or
The probability that other factors cause short circuit to be judged by accident, further increases the accuracy rate of short-circuit protection.
In an embodiment of the present disclosure, device may also include that
Second detection module, connect with first judgment module, is configured as through the fast temperature on the first electronic component
Device is responded, the temperature of corresponding first electronic component is detected.
Second judgment module is configured as calling recovery module when the temperature of detection is less than given threshold.
Certainly, it can restore circuit relevant to power supply under electric current and the duplicate protection of temperature, not only improve short-circuit protection
Accuracy rate, while also ensure electronic component using safe.
In an embodiment of the present disclosure, recovery module can include:
First restores submodule, is configured as when control electronics being that charger corresponding with charger controls chip
When, open the output of charger.
Second restores submodule, is configured as the control when control electronics are battery protection chip corresponding with battery
It makes the analog circuit connecting with battery to close the switch, restores the output of battery.
As it can be seen that different control electronics, the process for restoring circuit relevant to power supply is also different, in this way, control
Electronic component processed can all restore circuit relevant to power supply, it is ensured that the normal use of terminal improves the experience of user.
Below by operating process set into specific embodiment, the device that the embodiment of the present disclosure provides is illustrated.
Embodiment three, Fig. 7 are according to the block diagram of the terminal short circuit protective device shown in an exemplary embodiment three, the device
Applied in the power management chip of terminal system, in terminal system, there are temperature sensor, temperature sensing on motherboard circuit element
Device and power management chip are connect with signal generating device respectively.As shown in fig. 7, the device includes: receiving module 610 and cuts
Disconnected module 620.Wherein, cutting module 620 further includes the first cutting submodule 621.
In the present embodiment, receiving module 610 receives the interrupt signal that signal generating device is sent, wherein interrupt signal is
When the temperature of temperature sensor detection reaches corresponding given threshold, what signal generating device generated.
The switch that the first cutting 621 control mainboard circuit element of submodule in cutting module 620 is connect with battery is opened,
Cut off the connection of motherboard circuit element and battery.
As it can be seen that the terminal short circuit protective device in power management chip can work as motherboard circuit component temperature in the present embodiment
When increasing arrival given threshold, the connection of motherboard circuit element and battery is cut off, motherboard circuit element is protected, improved
The safety of terminal.
Example IV, Fig. 8 are according to the block diagram of the terminal short circuit protective device shown in an exemplary embodiment four, the device
Applied in the charger control chip of terminal system, there is temperature sensor in terminal system on charger, and temperature sensor
It is all connect with signal generating device with charger control chip.As shown in figure 8, the device includes: receiving module 610, knife edge die
Block 620, first detection module 630, first judgment module 640, the second detection module 650, the second judgment module 660 and recovery
Module 670, wherein cutting module 620 includes the second cutting submodule 622, and recovery module 670 includes the first recovery submodule
671。
In the present embodiment, receiving module 610 receives the interrupt signal that signal generating device is sent, wherein interrupt signal is
When the temperature of temperature sensor detection reaches corresponding given threshold, what signal generating device generated.
The output that the second cutting submodule 622 in cutting module 620 turns off the charger.
And after the output turned off the charger, first detection module 630 detects the load current of corresponding charger, and first sentences
When the load current that disconnected module 640 confirmly detects is less than corresponding setting electric current, the second detection module 650 passes through temperature sensing
Device detects the temperature of corresponding charger；In this way, being adjusted when the second judgment module 660 determines that the temperature of detection is less than given threshold
With recovery module 670.
And first in recovery module 670 restores the output that submodule 671 opens charger, restores electricity relevant to power supply
Road.
As it can be seen that charger controls the short-circuit protection in chip and can be carried out and power supply phase according to temperature in the present embodiment
Terminal is protected in the cutting of the circuit of pass, at the same time it can also restore relevant to power supply under the duplicate protection of electric current and temperature
Circuit, not only improve short-circuit protection accuracy rate, while also ensure electronic component using safe.
The embodiment of the present disclosure provides a kind of device of terminal short circuit protection, in terminal system, comprising:
The first electronic component relevant to charge and discharge, and control electronics corresponding with the first electronic component；Wherein,
Corresponding fast temperature response device is mounted at least one electronic component；
The signal generator being connect with each fast temperature response device；
At least one control electronics is connect with signal generating device；
Control electronics receive the interrupt signal that signal generating device is sent, wherein terminal signaling is when at least one
When the temperature of fast temperature response units test reaches corresponding given threshold, what signal generating device generated；
Control electronics cut off circuit relevant to power supply.
The technical scheme provided by this disclosed embodiment can include the following benefits:
The above-mentioned technical proposal that embodiment of the disclosure provides, is mounted with fast temperature on circuit relevant to charge and discharge
Device is responded, once in this way, micro-short circuit has occurred in charge and discharge process in terminal, the temperature of fast temperature response units test can be arrived
Up to corresponding given threshold, thus, control electronics can receive the signal generator connecting with fast temperature response device
The interrupt signal that part is sent, and cut off circuit relevant to power supply and subtract to will not there is lasting energy to destroy terminal
Few spontaneous combustion, explosion, the events odds such as electric shock improve the safety of terminal.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (11)
1. a kind of method of terminal short circuit protection, which is characterized in that relevant to charge and discharge at least one in the system of the terminal
Be mounted with corresponding fast temperature response device on a first electronic component, and at least one in the system of the terminal with it is described
The signal generating device connection corresponding with the fast temperature response device of the corresponding control electronics of first electronic component, institute
The method of stating includes:
The control electronics receive the interrupt signal that the signal generating device is sent, wherein the interrupt signal is to work as
When the temperature of at least one fast temperature response units test reaches corresponding given threshold, the signal generating device is generated
's；
Cut off circuit relevant to power supply, wherein when the control electronics include multiple, multiple control electronics members
Part has different priorities, and the height of priority influences the sequence that the signal generating device sends interrupt signal；
After relevant to the power supply circuit of the cutting, further includes:
Detect the load current of corresponding first electronic component；
When the load current detected is less than corresponding setting electric current, restore the circuit relevant to power supply.
2. the method as described in claim 1, which is characterized in that first electronic component includes: battery, charger, terminal
One in charging interface element or motherboard circuit element.
3. method according to claim 2, which is characterized in that relevant to the power supply circuit of the cutting includes:
When the control electronics are power management chip corresponding with the motherboard circuit element, the mainboard electricity is controlled
The switch that circuit component is connect with the battery is opened, and the connection of the motherboard circuit element and the battery is cut off；
When the control electronics are that charger corresponding with the charger controls chip, the defeated of the charger is closed
Out；
When the control electronics are battery protection chip corresponding with the battery, the mould connecting with the battery is controlled
Quasi- circuit switch is opened, and the output of the battery is cut off.
4. the method as described in claim 1, which is characterized in that the fast temperature response device includes:
One in temperature sensor, NTC thermistor or thermocouple.
5. the method as described in claim 1, which is characterized in that before circuit relevant to power supply described in the recovery, also wrap
It includes:
By the fast temperature response device on first electronic component, the temperature of corresponding first electronic component is detected
Degree；
When the temperature of detection is less than given threshold, restore the circuit relevant to power supply.
6. method as claimed in claim 1 or 5, which is characterized in that circuit relevant to power supply described in the recovery includes:
When the control electronics are that charger corresponding with charger controls chip, the output of the charger is opened；
When the control electronics are battery protection chip corresponding with battery, the simulation electricity connecting with the battery is controlled
Way switch closure, restores the output of the battery.
7. a kind of device of terminal short circuit protection, which is characterized in that relevant to charge and discharge at least one in the system of the terminal
Be mounted with corresponding fast temperature response device on a first electronic component, and at least one in the system of the terminal with it is described
The signal generating device connection corresponding with the fast temperature response device of the corresponding control electronics of first electronic component, institute
Device is stated applied in the control electronics, which includes:
Receiving module, the interrupt signal sent for receiving the signal generating device, wherein the interrupt signal is ought be at least
When the temperature of one fast temperature response units test reaches corresponding given threshold, what the signal generating device generated；
Module is cut off, for cutting off circuit relevant to power supply, wherein multiple when the control electronics include multiple
The control electronics have different priorities, and the height of priority influences the signal generating device and sends interrupt signal
Sequence；
Described device further include:
First detection module, for detecting the load current of corresponding first electronic component；
First judgment module, for calling recovery module when the load current detected is less than corresponding setting electric current；
Recovery module, for restoring the circuit relevant to power supply.
8. device as claimed in claim 7, which is characterized in that the cutting module includes:
First cutting submodule, for being power management chip corresponding with motherboard circuit element when the control electronics
When, it controls the switch that the motherboard circuit element is connect with battery and opens, cut off the motherboard circuit element and the battery
Connection；
Second cutting submodule, for closing when the control electronics are that charger corresponding with charger controls chip
Close the output of the charger；
Third cuts off submodule, for controlling when the control electronics are battery protection chip corresponding with the battery
It makes the analog circuit switch connecting with the battery to open, cuts off the output of the battery.
9. device as claimed in claim 7, which is characterized in that described device further include:
Second detection module is connect with the first judgment module, for passing through the fast temperature on first electronic component
Device is responded, the temperature of corresponding first electronic component is detected；
Second judgment module, for calling the recovery module when the temperature of detection is less than given threshold.
10. the device as described in claim 7 or 9, which is characterized in that the recovery module includes:
First restores submodule, for beating when the control electronics are that charger corresponding with charger controls chip
Open the output of the charger；
Second restore submodule, for when the control electronics be battery protection chip corresponding with battery when, control with
The analog circuit of the battery connection closes the switch, and restores the output of the battery.
11. a kind of device of terminal short circuit protection, in terminal system characterized by comprising
The first electronic component relevant to charge and discharge, and control electronics corresponding with first electronic component；Wherein,
Corresponding fast temperature response device is mounted at least one described electronic component；
The signal generating device being connect with each fast temperature response device；
At least one control electronics is connect with the signal generating device；
The control electronics receive the interrupt signal that the signal generating device is sent, wherein the interrupt signal is to work as
When the temperature of at least one fast temperature response units test reaches corresponding given threshold, the signal generating device is generated
's；
The control electronics cut off circuit relevant to power supply, wherein more when the control electronics include multiple
A control electronics have different priorities, and the height of priority influences the signal generating device and sends interruption letter
Number sequence；
After relevant to the power supply circuit of the cutting, further includes:
Detect the load current of corresponding first electronic component；
When the load current detected is less than corresponding setting electric current, restore the circuit relevant to power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474895.1A CN106026264B (en) | 2016-06-24 | 2016-06-24 | The method and device of terminal short circuit protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474895.1A CN106026264B (en) | 2016-06-24 | 2016-06-24 | The method and device of terminal short circuit protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106026264A CN106026264A (en) | 2016-10-12 |
| CN106026264B true CN106026264B (en) | 2019-01-15 |
Family
ID=57085070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610474895.1A Active CN106026264B (en) | 2016-06-24 | 2016-06-24 | The method and device of terminal short circuit protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106026264B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227775A (en) * | 2016-12-15 | 2018-06-29 | 沃尔缇夫能源系统公司 | A kind of detection method of temperature, temperature control system and electronic equipment |
| CN106786874A (en) * | 2016-12-19 | 2017-05-31 | 北京小米移动软件有限公司 | Charge control method and device |
| CN106505688A (en) * | 2016-12-19 | 2017-03-15 | 北京小米移动软件有限公司 | Charge control method and device |
| CN106712172A (en) * | 2016-12-19 | 2017-05-24 | 北京小米移动软件有限公司 | Charging control method and device |
| CN106549455A (en) * | 2016-12-19 | 2017-03-29 | 北京小米移动软件有限公司 | Charge control method and device |
| CN107065754B (en) * | 2017-05-24 | 2020-02-21 | 宇龙计算机通信科技(深圳)有限公司 | Intelligent terminal protection method and intelligent terminal |
| CN108110839B (en) * | 2017-12-28 | 2021-08-24 | 合肥联宝信息技术有限公司 | Power supply control method and electronic equipment |
| CN113840362B (en) * | 2021-11-26 | 2022-03-04 | 华中科技大学 | Mobile phone terminal optimization method based on energy consumption interruption probability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217158A (en) * | 2008-10-02 | 2011-10-12 | 莱登能源公司 | Electronic current interrupt device for battery |
| CN204361725U (en) * | 2014-12-30 | 2015-05-27 | 爱国者电子科技有限公司 | The circuit board of power management and portable power source |
-
2016
- 2016-06-24 CN CN201610474895.1A patent/CN106026264B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217158A (en) * | 2008-10-02 | 2011-10-12 | 莱登能源公司 | Electronic current interrupt device for battery |
| CN204361725U (en) * | 2014-12-30 | 2015-05-27 | 爱国者电子科技有限公司 | The circuit board of power management and portable power source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106026264A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106026264B (en) | The method and device of terminal short circuit protection | |
| CN106026034B (en) | A kind of over-current protection method and circuit of battery battery core | |
| KR102085684B1 (en) | Charging protection method and apparatus | |
| JP6474821B2 (en) | Cable and connector protection | |
| CN101102042B (en) | A protection device for lightning strike surge protection circuit | |
| CN107065754B (en) | Intelligent terminal protection method and intelligent terminal | |
| CN106160231B (en) | A kind of power equipment remote intelligent monitoring system | |
| JP2009232610A (en) | Device for protecting load circuit | |
| KR101766483B1 (en) | Circuit breaker control | |
| CN105120108A (en) | Electronic device and fall protection method thereof | |
| EP3143655A1 (en) | Battery module with a controllable external heat sink | |
| CN110073562B (en) | Overcurrent and short circuit detector | |
| JP7187662B2 (en) | ADAPTER FUNCTION TEST METHOD AND APPARATUS, DEVICE, STORAGE MEDIUM | |
| US20090257156A1 (en) | Method of setting a ground fault trip function for a trip unit and a trip unit having a defined trip function for ground fault protection | |
| KR102258898B1 (en) | System and method for anti-islanding of distributed power generation | |
| CN105140983B (en) | A kind of battery, mobile terminal and its high current auto-cutout method | |
| KR20140097803A (en) | Battery pack, Power-interrupting module applied for the same and Method for interrupting power of battery | |
| CN110235298B (en) | Battery pack with communication terminal isolation function | |
| CN109586252A (en) | The IC guard method of lithium electricity and device | |
| CN211236141U (en) | Circuit breaker running state detection device based on multisensor | |
| CN106602535B (en) | A kind of transient voltage suppressor TVS short-circuit protection method and device | |
| EP3202004B1 (en) | Compressor motor overload detection | |
| WO2018095055A1 (en) | Temperature control apparatus and method | |
| CN216215867U (en) | Short-circuit prevention circuit and equipment | |
| CN115622212B (en) | Charge and discharge management circuit, chip with charge and discharge management circuit, equipment with charge and discharge management circuit and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |