CN108899959A - Electronic equipment charge protector, method, apparatus, electronic equipment and medium - Google Patents
Electronic equipment charge protector, method, apparatus, electronic equipment and medium Download PDFInfo
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- CN108899959A CN108899959A CN201810890532.5A CN201810890532A CN108899959A CN 108899959 A CN108899959 A CN 108899959A CN 201810890532 A CN201810890532 A CN 201810890532A CN 108899959 A CN108899959 A CN 108899959A
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- 230000001012 protector Effects 0.000 title claims abstract description 41
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- 238000004590 computer program Methods 0.000 claims description 7
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- 238000005516 engineering process Methods 0.000 description 6
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- 239000003990 capacitor Substances 0.000 description 4
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- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 2
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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
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- H02J7/0091—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Protection Of Static Devices (AREA)
Abstract
This application discloses a kind of electronic equipment charge protector, method, apparatus, electronic equipment and medium, wherein circuit includes:Temperature sensing assembly, for detecting the temperature value at the electronic equipment charging port;The control assembly being electrically connected with the temperature sensing assembly, the temperature value of temperature value, and/or the previous moment detection adjacent with current time for being detected according to the temperature sensing assembly current time, determines current control logic;The feed-through assembly being electrically connected with the control assembly adjusts the connection status of the electronic equipment charging port and charging circuit for the control logic according to the control assembly.Avoid as a result, electronic equipment charging port temperature is excessively high or temperature increases too fast and generation the case where burn out electronic equipment charging port, protect the safety of electronic equipment, reduce the energy loss of charge circuit, improve the reliability of charge circuit.
Description
Technical field
This application involves electronic technology fields, in particular to a kind of electronic equipment charge protector, method, apparatus, electricity
Sub- equipment and medium.
Background technique
As the charge power of the electronic equipments such as mobile phone, computer is constantly promoted, safety when electronic equipment charges is more next
It is more important.In actual use, the case where inevitably will appear charging port into impurity such as dusts, which results in electronics
Easily there is charging port because then causing temperature excessively high into short circuit or micro-short circuit caused by impurity when being charged in equipment, so that
The case where charging port is burned out, to threaten the safety of electronic equipment.
In the related technology, usually pass through the VBUS inside charging cable or GND series connection positive temperature coefficient (Positive
Temperature Coefficient, abbreviation PTC) thermistor, the spy that the resistance value of PTC resistor becomes larger when being increased using temperature
Property, when the temperature of charging port or charging cable increases, PTC resistor resistance value becomes larger, to reduce the charging electricity to electronic equipment
Stream, to reduce the fever of electronic equipment.But this charge protection mode, PTC resistor is sealed in into charge circuit, can not only be filled
Electrical circuit brings additional energy loss, also the durability of charge circuit can be made to be influenced by PTC resistor durability, so that filling
The reliability of electrical circuit is poor.
Summary of the invention
The application provides a kind of electronic equipment charge protector, method, apparatus, electronic equipment and medium, for solving
Electronic equipment charge protection mode in the related technology, seals in charge circuit for PTC resistor, not only can bring volume to charge circuit
Outer energy loss can also make the durability of charge circuit be influenced by PTC resistor durability, so that charge circuit is reliable
The poor problem of property.
The application one side embodiment provides a kind of electronic equipment charge protector, which includes:Temperature detection group
Part, for detecting the temperature value at the electronic equipment charging port;The control assembly being electrically connected with the temperature sensing assembly,
Temperature value, and/or the previous moment inspection adjacent with current time for being detected according to the temperature sensing assembly current time
The temperature value of survey determines current control logic;The feed-through assembly being electrically connected with the control assembly, for according to the control
The control logic of component adjusts the connection status of the electronic equipment charging port and charging circuit.
The application another aspect embodiment provides a kind of electronic equipment charge protection method, and this method includes:Monitor electronics
The temperature value of equipment charge port;According to the current temperature value of the electronic equipment charging port, and/or it is adjacent with current time
Previous moment temperature value, determine current charging control logic;According to the current charging control logic, to the electricity
The charged state of sub- equipment is adjusted.
The another aspect embodiment of the application provides a kind of electronic equipment charge protection device, which includes:Monitoring modular,
For monitoring the temperature value of electronic equipment charging port;First determining module, for being worked as according to the electronic equipment charging port
Preceding temperature value, and/or the temperature value of the previous moment adjacent with current time, determine current charging control logic;Adjustment
Module, for being adjusted to the charged state of the electronic equipment according to the current charging control logic.
The another aspect embodiment of the application provides a kind of electronic equipment, including charging port, battery and such as first aspect institute
The electronic equipment charge protector stated.
The application another further aspect embodiment provides a kind of computer readable storage medium, is stored thereon with computer program,
When the computer program is executed by processor, to realize electronic equipment charge protection method described in second aspect embodiment.
Technical solution disclosed in the present application, has the advantages that:
Avoid electronic equipment charging port temperature is excessively high or temperature increases too fast and burns out electronic equipment charging port
The case where occur, protect the safety of electronic equipment, and reduce the energy loss of charge circuit, improve charge circuit can
By property.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is the structural schematic diagram according to the electronic equipment charge protector of the application one embodiment;
Fig. 2 is the structural schematic diagram according to the electronic equipment charge protector of the application another embodiment;
Fig. 3 is the structural schematic diagram according to the electronic equipment charge protector of the application another embodiment;
Fig. 4 is the structural schematic diagram according to the electronic equipment charge protector of the application another embodiment;
Fig. 5 is the structural schematic diagram according to the electronic equipment charge protector of the application another embodiment;
Fig. 6 is the flow diagram according to the electronic equipment charge protection method of the application one embodiment;
Fig. 7 is the structural schematic diagram according to the electronic equipment charge protection device of the application one embodiment;
Fig. 8 is the structural schematic diagram according to the electronic equipment charge protection device of the application another embodiment.
Such as figure description of symbols:
Temperature sensing assembly -11;Control assembly -12;Feed-through assembly -13;
First resistor -111;Thermistor -112;Clock circuit -121;
Signal latch circuit -122;First comparison circuit -123;Logic gates -124;
Second comparison circuit -125;Third comparison circuit -113;Resistance -114;
Second resistance -115;Resistance -116;3rd resistor -141;
4th resistance -142;4th comparison circuit -143.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
PTC resistor is sealed in charging for electronic equipment charge protection mode in the related technology by each embodiment of the application
Circuit can not only bring additional energy loss to charge circuit, also the durability of charge circuit can be made durable by PTC resistor
Property influence propose a kind of electronic equipment charge protector so that the problem that the reliability of charge circuit is poor.
The electronic equipment charge protector of the embodiment of the present application, including temperature sensing assembly and temperature sensing assembly electricity
The control assembly of connection, and the feed-through assembly being electrically connected with control assembly, temperature sensing assembly can detecte electronic equipment charging
The temperature value of port, control assembly can be according to the temperature values, and/or and current time that temperature sensing assembly current time is detected
The temperature value of adjacent previous moment detection, determines current control logic, so that feed-through assembly can be according to control assembly
Control logic adjusts the connection status of electronic equipment charging port and charging circuit.The charging end of electronic equipment is avoided as a result,
Mouthful temperature is excessively high or temperature increases too fast and generation the case where burn out electronic equipment charging port, protects the peace of electronic equipment
Entirely, the energy loss for reducing charge circuit improves the reliability of charge circuit.
Below with reference to the accompanying drawings to the electronic equipment charge protector of the embodiment of the present application, method, apparatus, electronic equipment and
Medium is described in detail.
First in conjunction with attached drawing 1, the electronic equipment charge protector proposed to the embodiment of the present application is described in detail.
Fig. 1 is the structural schematic diagram according to the electronic equipment charge protector of the application one embodiment.
As shown in Figure 1, the electronic equipment charge protector of the application includes:Temperature sensing assembly 11, control assembly 12,
Feed-through assembly 13.
Specifically, temperature sensing assembly 11, for detecting the temperature value at electronic equipment charging port;Control assembly 12 with
Temperature sensing assembly 11 is electrically connected, temperature value for being detected according to 11 current time of temperature sensing assembly, and/or with it is current when
The temperature value for carving adjacent previous moment detection, determines current control logic;Feed-through assembly 13 is electrically connected with control assembly 12,
For the control logic according to control assembly 12, the connection status of electronic equipment charging port and charging circuit is adjusted.
Wherein, feed-through assembly 13 can be any device with switching function, such as metal oxide semiconductcor field effect
Answer transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, abbreviation MOSFET), crystal three
Pole pipe etc..
When specific implementation, the electronic equipment charge protector of the application can be configured in electronic equipment internal, conducting
One end of component 13 can be connect with electronic equipment charging port, and the other end can be connect with charging circuit, and being equivalent to will be connected
Component 13 is connected in charging circuit.The fitting of temperature sensing assembly 11 is arranged at electronic equipment charging port, so as to examine
Survey the temperature value at electronic equipment charging port.
Alternatively, electronic equipment charge protector also can be set inside the charging cable of electronic equipment, feed-through assembly 13
One end can be connect with adapter port, the other end can be connect with the charging port of electron equipment charge, be equivalent to by
Feed-through assembly 13 is connected in charging circuit.Temperature sensing assembly 11 is arranged close to the charging port of charging cable, thus that will fill
The charging port of electric wire is inserted into electronic equipment charging port, when the charging cable using electronic equipment is that electronic equipment charges, temperature
Detection components 11 can be fitted at the charging port of electronic equipment, to detect the temperature value at electronic equipment charging port.Fig. 1
Illustrated so that electronic equipment charge protector is arranged on the charging cable inside of electronic equipment as an example.
In the embodiment of the present application, control assembly 12 is electrically connected with temperature sensing assembly 11, is filled to electronic equipment
Electricity process in, if the temperature of electronic equipment charging port is normal, i.e., temperature sensing assembly 11 detect electronic equipment charging end
The temperature value at mouth current time is not above preset first threshold, and the temperature increase rate of electronic equipment charging port is just
Often, i.e. previous adjacent with current time of temperature value at electronic equipment charging port current time that detects of temperature sensing assembly 11
When the difference of the temperature value of moment detection is not above preset second threshold, control assembly 12 can determine that current control is patrolled
It volume is normally connect with charging circuit for electronic equipment charging port, so that the feed-through assembly 13 being electrically connected with control assembly 12 can be with
It according to current control logic, tends to remain on, is normally connect so that electronic equipment charging port be made to be in charging circuit
State.
Wherein, the temperature value of the temperature value at the electronic equipment charging port current time previous moment adjacent with current time
Difference and current time previous moment adjacent thereto between time interval ratio, as electronic equipment charging port temperature
Spend increase rate.Time interval between first threshold, second threshold, current time previous moment adjacent thereto, can basis
The factors such as characteristic, the characteristic of electronic equipment charging port of temperature sensing assembly 11, are set as needed.
Once there is the exception that temperature is excessively high or temperature increase rate is excessive (heating is too fast) in electronic equipment charging port
The temperature value at the electronic equipment charging port current time of situation, i.e. temperature sensing assembly 11 detection is greater than first threshold, or inspection
The difference of the temperature value of the temperature value at the electronic equipment charging port current time of the survey previous moment detection adjacent with current time
Value is greater than second threshold, then control assembly 12 can determine current control logic to disconnect electronic equipment charging port and charging
The connection of route, so that the feed-through assembly 13 being electrically connected with control assembly 12 can be adjusted to close according to current control logic
Disconnected state, so that the connection of electronic equipment charging port and charging circuit be made to disconnect.
By above-mentioned electronic equipment charge protector, occur that temperature is excessively high or temperature liter in electronic equipment charging port
When the abnormal conditions of high slope excessive (heating is too fast), that is, the connection of electronic equipment charging port and charging circuit is disconnected, thus
Avoid electronic equipment charging port temperature is excessively high or temperature increases too fast and hair the case where burn out electronic equipment charging port
It is raw, protect the safety of electronic equipment.In addition, due to being arranged temperature sensing assembly fitting at electronic equipment charging port,
And the electric current very little of temperature sensing assembly can be flowed through by setting, to reduce the energy loss of charge circuit, extend
The service life of temperature sensing assembly, so that the durability of charge circuit do not influenced by the durability of temperature sensing assembly,
To improve the reliability of charge circuit.
The overall structure of electronic equipment charge protector is illustrated in above-described embodiment, below with reference to the accompanying drawings 2-4,
To in electronic equipment charge protector temperature sensing assembly 11 and control assembly 12 be described in detail.It needs to illustrate
It is that the application is illustrated so that feed-through assembly 13 is the PMOS transistor of low level conducting as an example.Wherein, two in attached drawing 2-4
Pole pipe is the parasitic body diode of PMOS transistor.
As shown in Fig. 2, temperature sensing assembly 11 may include that first resistor 111 and being bonded with electronic equipment charging port is set
The thermistor 112 set.
Specifically, one end of first resistor 111 is electrically connected with charging circuit, the other end and the temperature-sensitive electricity of first resistor 111
One end of resistance 112 and the input terminal connection of control assembly 12;The other end of thermistor 112 is connected to ground.
Wherein, thermistor 112 can be (Negative Temperature Coefficient, abbreviation NTC) temperature-sensitive
The resistance that any resistance value such as resistance or PTC resistor can vary with temperature, the application to this with no restriction.First resistor 111 is
Divider resistance.First resistor 111 and the resistance value of thermistor 112 can according to need setting.
It is understood that thermistor 112 is bonded setting with electronic equipment charging port, in the charging of electronic equipment
Cheng Zhong, when electronic equipment charging port temperature increases, the resistance value of thermistor 112 can also be varied with temperature, thus voltage of VBUS
Partial pressure value on thermistor 112 also changes therewith.That is the variation of partial pressure value of the voltage of VBUS on thermistor 112, table
The temperature change at electronic equipment charging port is levied, so that control assembly 12 can be according to the voltage value of input terminal, determination is worked as
Preceding control logic.
It should be noted that the position of first resistor 111 and thermistor 112 can be interchanged in practice
One end of thermistor 112 to be electrically connected with charging circuit, the other end of thermistor 112 and one end of first resistor 111
And the input terminal connection of control assembly 12, the other end of first resistor 111 are connected to ground, thus the input terminal electricity of control assembly 12
Pressure is partial pressure value of the voltage of VBUS in first resistor 111, and then control assembly 12 can be according to voltage of VBUS in first resistor
Partial pressure value on 111 determines current control logic.
In addition, as shown in Fig. 2, control assembly 12 may include clock circuit 121, signal latch circuit 122, first compare
Circuit 123 and logic gates 124.
Specifically, clock circuit 121, for generating clock signal;The input terminal of signal latch circuit 122 is examined with temperature
The output end connection of component 11 is surveyed, the control terminal of signal latch circuit 122 connect with the output end of clock circuit 121, is used for
In each clock signal period that clock circuit 121 exports, latches and export current clock signal come the temperature value that temporarily obtains;
The first input end of first comparison circuit 123, connect with the output end of temperature sensing assembly 11, the second input terminal and signal latch
The output end of circuit 122 connects;The output end of first comparison circuit 123 is connect with the first input end of logic gates 124;It patrols
Second input terminal of volume gate circuit 124 is connect with the output end of temperature sensing assembly 11, the output end of logic gates 124 with lead
The control terminal connection of logical component 13.
It should be noted that voltage of VBUS input signal latch cicuit after first resistor 111 and thermistor 112 divide
When 122, for signal latch circuit 122 in each clock signal period that clock circuit 121 exports, it is current for latching and exporting
Partial pressure value of the clock signal come the voltage of VBUS that temporarily obtains on thermistor 112, at electronic equipment charging port
Temperature value is corresponding.
Wherein, the clock signal period of clock circuit 121, for adjusting current time and adjacent with current time previous
Time interval between moment.
It is understood that partial pressure value of the voltage of VBUS on thermistor 112 can be electric to the first comparison with real-time loading
The first input end on road 123, and the voltage of the second input terminal of the first comparison circuit 123, it is every to be exported in clock circuit 121
In a clock signal period, signal latch circuit 122 is latched and the current clock signal that exports is come the voltage of VBUS that temporarily obtains
Partial pressure value on thermistor 112.To the voltage of 123 first input end of the first comparison circuit and the voltage of the second input terminal
Respectively, in current time and the previous moment adjacent with current time, partial pressure value of the voltage of VBUS on thermistor 112.
Since voltage of VBUS can be with the temperature at characterization of electronic equipment charging port in the partial pressure value on thermistor 112
Value, the clock signal period of clock circuit 121, can characterize between current time and the previous moment adjacent with current time when
Between be spaced, thus in the embodiment of the present application, the first input end of the first comparison circuit 123 and the pressure difference of the second input terminal, with
The ratio of the clock signal period of clock circuit 121, can be with the temperature increase rate of characterization of electronic equipment charging port.
In addition, due to the output voltage that the voltage of the first input end of logic gates 124 is the first comparison circuit 123,
And logic gates 124 is when being OR circuit, one of input terminal is high level, and logic gates 124 is exportable high electricity
It is flat.Therefore, in the embodiment of the present application, pass through the clock signal period and the first comparison circuit 123 of setting clock circuit 121
The pressure difference of first input end and the second input terminal, can make electronic equipment charging port when output level overturning is high level
When temperature increase rate is excessive, the first comparison circuit 123 exports high level, correspondingly, logic gates 124 exports high level,
And then feed-through assembly 13 is turned off, so that the connection of electronic equipment charging port and charging circuit disconnects.
Specifically, in the embodiment of the present application, it can be according to first resistor 111 and the resistance value of thermistor 112, temperature-sensitive electricity
The factors such as 112 temperature coefficient and the voltage value of VBUS are hindered, third threshold value corresponding with second threshold is set.It is filled in electronic equipment
When the temperature increase rate of electric port is greater than third threshold value, that is, it can determine the temperature increase rate mistake of electronic equipment charging port
Greatly;When the temperature increase rate of electronic equipment charging port is less than or equal to third threshold value, that is, it can determine that electronic equipment charges
The temperature increase rate of port is normal.
In addition, in the embodiment of the present application, thermistor 112 can select resistance according to the turn-on logic of feed-through assembly 13
Value is increased with temperature and the PTC resistor of increase, so that partial pressure value of the voltage of VBUS on thermistor 112 can be with electronic equipment
The temperature of charging port increases and increases.Since the voltage of the second input terminal of logic gates 124 is voltage of VBUS in temperature-sensitive
Real-time partial pressure value on resistance 112, and logic gates 124 be OR circuit when, one of input terminal be high level, logic
Gate circuit 124 is exportable high level, therefore is filled in real-time partial pressure value of the voltage of VBUS on thermistor 112 with electronic equipment
The temperature of electric port increases, until logic gates 124 is exportable high level, so that feed-through assembly when being greater than four threshold values
13 shutdowns, so that the connection of electronic equipment charging port and charging circuit be made to disconnect.
And, corresponding logic gates normal (being less than or equal to first threshold) in the temperature of electronic equipment charging port
When the voltage of 124 the second input terminal is less than or equal to four threshold values, the second input terminal of logic gates 124 is low level,
And the temperature increase rate of electronic equipment charging port is normal, i.e., when temperature increase rate is less than or equal to third threshold value, first
Comparison circuit 123 exports low level, correspondingly, the first input end of logic gates 124 is low level, thus logic gates
124 output low levels, and then keep feed-through assembly 13 in the conductive state, so that electronic equipment charging port and charging circuit are to connect
Connect state.
Wherein, the 4th threshold value, can be according to the voltage value of resistance value and VBUS etc. of first resistor 111 and thermistor 112
Factor setting, it is corresponding with first threshold.
It should be noted that in the embodiment of the present application, clock circuit 121 and signal latch circuit 122 can be with discrete
The form of device is realized, can also be realized in the form of integrated chip.In addition, clock circuit 121, can be timer, it can also
To be counter, the application to this with no restriction.
By electronic equipment charge protector shown in Fig. 2, may be implemented electronic equipment charging port temperature just
Often, when and temperature increase rate is normal, feed-through assembly 13 is connected, so that electronic equipment charging port and charging circuit are in normal
Connection status, to charge for electronic equipment.And occur that temperature is excessively high or temperature increase rate mistake in electronic equipment charging port
When the abnormal conditions (to heat up too fast) greatly, 13 output level of logic gates overturning, to make feed-through assembly 13 turn off, so that electric
The connection of sub- equipment charge port and charging circuit disconnects, and the charging port temperature so as to avoid electronic equipment is excessively high or temperature
Too fast and generation the case where burn out electronic equipment charging port is increased, the safety of electronic equipment is protected.
Further, when the temperature of electronic equipment charging port changes up and down near first threshold in order to prevent, or electricity
When the temperature increase rate of sub- equipment charge port changes above and below third Near Threshold, the output level of logic gates 124
Frequently jump, so as to cause the frequent on or off of feed-through assembly 13, makes the service life of the devices such as the battery of electronic equipment
At influence, in the embodiment of the present application, as shown in figure 3, the first comparison circuit 123 can be hysteresis comparator circuit.Similar,
In control assembly 12, can also include:Second comparison circuit 125, wherein the second comparison circuit 125 is hysteresis comparator circuit.
Specifically, the first input end of the second comparison circuit 125, connect, second with the output end of temperature sensing assembly 11
Second input terminal of comparison circuit 125 is connect with the first preset reference voltage VREF1;The output of second comparison circuit 125
End, connect with the second input terminal of logic gates 124.
Wherein, the first preset reference voltage VREF1, can be arranged according to first threshold.It can be fixed pressure stabilizing
The voltage that source provides, is also possible to the partial pressure that voltage of VBUS provides after electric resistance partial pressure, can also be the electricity that other way provides
Pressure, herein with no restriction.
Specifically, can be by adjusting the sluggish section of hysteresis comparator circuit 125, so that the of the second comparison circuit 125
When one input terminal voltage is lower than the first preset reference voltage VREF1 certain value, hysteresis comparator circuit 125 exports low level, the
When the first input end voltage of two comparison circuits 125 is higher than the first preset reference voltage VREF1 certain value, hysteresis comparator circuit
125 output high level.As a result, by output end in temperature sensing assembly 11 and the second input terminal of logic gates 124 it
Between hysteresis comparator circuit is set, the temperature that logic gates 124 can be made to detect in temperature sensing assembly 11 is attached in first threshold
When nearly variation up and down, output level is not flipped, but the temperature drift first threshold one detected in temperature sensing assembly 11
It is overturn again when definite value, to realize in the variation up and down near first threshold of the temperature of electronic equipment charging port, conducting group
Part 13 will not frequent on or off.Correspondingly, by setting hysteresis comparator circuit, Ke Yishi for the first comparison circuit 123
When the temperature increase rate of present electronic equipment charging port changes above and below third Near Threshold, feed-through assembly 13 will not be frequent
On or off.
Wherein, the sluggish section of hysteresis comparator circuit, can according to need setting.
It is understood that temperature sensing assembly 11 is made of first resistor 111 and thermistor 112 in practice,
Control assembly 12 directly may be due to filling when determining current control logic according to the voltage that temperature sensing assembly 11 exports
The influence of interference signal etc. in electric line, causes voltage of VBUS unstable, the voltage exported so as to cause temperature sensing assembly 11
It is unstable, so that the determination to control logic impacts.So, in the embodiment of the present application, as shown in figure 4, temperature detection
Component 11 can also include third comparison circuit 113.
Specifically, the first input end of third comparison circuit 113 is connect with the second preset reference voltage, third is more electric
Second input terminal on road 113, connect with one end of the other end of first resistor 111 and thermistor 112;Third comparison circuit
113 output end is connect with the input terminal of control assembly 12.
Wherein, the second preset reference voltage can be point of voltage of VBUS as shown in Figure 4 in second resistance 115
Pressure is also possible to the voltage that fixed source of stable pressure provides, and can also be the voltage that other way provides, herein with no restriction.It needs
It is noted that can also include feedback compensation resistance 116 in electronic equipment charge protector.
Specifically, by the second preset reference voltage be voltage of VBUS in the partial pressure in second resistance 115 for, due to the
The voltage of three comparison circuits, 113 first input end and the second input terminal both from voltage of VBUS in ohmically partial pressure value, from
And when voltage of VBUS is unstable, the variation of the first input end of third comparison circuit 113 and the second input terminal voltage is by VBUS
The influence of voltage change is identical, and the output end voltage variation of third comparison circuit 113 is only affected by temperature, to improve third
The stability and reliability of 113 output signal of comparison circuit.
It should be noted that third comparison circuit 113 and the second comparison circuit 125 can also pass through in practice
One hysteresis comparator circuit realization, herein with no restriction.
In addition, Fig. 4 is only connect with the first input end of the second comparison circuit 125 with the output end of third comparison circuit 113,
And the first input end of the input terminal of signal latch circuit 122 and the first comparison circuit 123 is connect with one end of thermistor 112
For illustrated.In practice, the first input of the input terminal of signal latch circuit 122 and the first comparison circuit 123
End can not also be connect with one end of thermistor 112, but be connect with the output end of third comparison circuit 113, the application couple
This is with no restriction.
In addition, in a kind of possible way of realization, in order to make temperature sensing assembly 11 be input to logic gates 13
Signal is more stable, reliable, can also realize using in such a way that 112 both ends of thermistor are connected in parallel with a capacitor.It needs to illustrate
It is that the capacitance of capacitor can according to need setting.In general, capacitor in parallel can be a lesser capacitor of capacitance, from
And when avoiding capacitance excessive, partial pressure of the input terminal voltage of control assembly 12 not with voltage of VBUS on thermistor 112 becomes
Change and changes.
Electronic equipment charge protector provided by the above embodiment realizes the temperature change in electronic equipment charging port
When change, electronic equipment is protected, in the embodiment of the present application, electronic equipment charge protector can also be to electronic equipment
Carry out overvoltage protection.Electronic equipment charge protector is further described below with reference to Fig. 5.
Fig. 5 is the structural schematic diagram according to the electronic equipment charge protector of the application another embodiment.
As shown in figure 5, electronic equipment charge protector can also include overvoltage crowbar 14.Wherein, overvoltage protection
It may include 3rd resistor 141, the 4th resistance 142, the 4th comparison circuit 143 in circuit 14.
Specifically, one end of 3rd resistor 141 is electrically connected with charging circuit, the other end of 3rd resistor 141 and the 4th electricity
One end of resistance 142 and the first input end connection of comparator 143;The other end of 4th resistance 142 is connected to ground;4th comparison is electric
Second input terminal on road 143 is connect with the preset reference voltage VREF2 of third;The output end and logic of third comparison circuit 113
The third input terminal of gate circuit 124 connects.
Wherein, the preset reference voltage of third can be fixed the voltage of source of stable pressure offer, be also possible to other way
The voltage of offer, the application to this with no restriction.
It is understood that voltage of VBUS is after 3rd resistor 141 and the 4th resistance 142 partial pressure, the 4th comparison of input is electric
143 first input end of road, if first input end voltage is higher than the preset reference voltage of third, the output of the 4th comparison circuit 143
High level, so as to so that logic gates 124 exports high level, and then the control shutdown of feed-through assembly 13.Thus, it is possible to filling
When voltage value is excessive in electric line, make the connection of electronic equipment charging port and charging circuit disconnect, thus to electronic equipment into
Row protection.
It should be noted that the first comparison circuit 123, the second comparison circuit 125 and third comparison circuit in attached drawing 2-5
The connection relationship of other devices, only schematically illustrates in 113 positive and negative terminal and circuit.In practice, the first comparison is electric
Road 123, the first input end of the second comparison circuit 125 and third comparison circuit 113 and the second input terminal are respectively positive input terminal
Or negative input end can be determined according to the turn-on logic of feed-through assembly 13.
Based on above-mentioned electronic equipment charge protector, the application also proposes a kind of electronic equipment charge protection method.
Below with reference to Fig. 6, electronic equipment charge protection method provided by the embodiments of the present application is described in detail.
As shown in fig. 6, the electronic equipment charge protection method includes the following steps:
Step 101, the temperature value of electronic equipment charging port is monitored.
Wherein, electronic equipment charge protection method provided by the embodiments of the present application, can be by provided by the embodiments of the present application
Electronic equipment charge protector executes, alternatively, can also be by electronic equipment charge protection device provided by the embodiments of the present application
It executes, which can be configured in the electronic device, to carry out charge protection to electronic equipment.Wherein, the class of electronic equipment
There are many type, can be selected according to application, for example, mobile phone, computer etc..
Specifically, electronic equipment charging port can install temperature sensing assembly, thus electronic equipment charge protection device
It can pass through temperature sensing assembly in real time, monitor the temperature value of electronic equipment charging port, and by electronic equipment charging port
Each temperature value is recorded.
Wherein, temperature sensing assembly, can be temperature sensor etc. arbitrarily can detecte the device of temperature.
Step 102, the temperature value current according to electronic equipment charging port, and/or it is adjacent with current time previous when
The temperature value at quarter determines current charging control logic.
Specifically, being monitored by the temperature value to electronic equipment charging port, that is, it can determine current temperature acquisition
The temperature value at moment.
Furthermore it is possible to the temperature sampling period of electronic equipment charging port be preset, thus the temperature current in determination
It, can be according to preset sampling period and current temperature acquisition moment, before determination is adjacent with current time after acquiring the moment
One temperature acquisition moment, and then from each temperature value for the electronic equipment charging port that electronic equipment charge protection device records,
Obtain temperature value corresponding with the adjacent previous temperature acquisition moment at current time.That is, the charging control logic current in determination
Before, can also include:
According to preset sampling period and current temperature acquisition moment, determination is adjacent with the current temperature acquisition moment
The previous temperature acquisition moment;
Obtain temperature value corresponding with the previous temperature acquisition moment.
Wherein, the preset sampling period can according to need setting, for example, can be set to 1 minute, half a minute etc..
Further, the temperature value current according to electronic equipment charging port, and/or it is adjacent with current time previous when
The temperature value at quarter can determine current charging control logic.
Specifically, if the current temperature value of electronic equipment charging port is greater than first threshold, alternatively, if electronic equipment charges
The difference of the temperature value of the current temperature value in the port previous moment adjacent with current time is greater than second threshold, it is determined that current
Charging control logic be disconnect charging connection.
If the current temperature value of electronic equipment charging port is greater than first threshold, while electronic equipment charging port is current
The difference of the temperature value of the temperature value previous moment adjacent with current time is greater than second threshold, can also determine current charging
Control logic is to disconnect charging connection.
If the current temperature value of electronic equipment charging port is less than or equal to first threshold, and electronic equipment charging port is worked as
The difference of the temperature value of the preceding temperature value previous moment adjacent with current time is less than or equal to second threshold, it is determined that current
Charging control logic be keep charging connection.
Wherein, first threshold and second threshold can according to need setting.For example, the temperature of electronic equipment charging port
When more than 60 degrees Celsius or when temperature is increased per minute more than 8 degrees Celsius, electronic equipment charging port has the danger burnt, then
First threshold can be set to 60 degrees Celsius, and second threshold can be set to 8 degree mins Celsius.
Step 103, according to current charging control logic, the charged state of electronic equipment is adjusted.
Specifically, can continue to fill electronic equipment if current charging control logic is to keep charging connection
Electricity;If current charging control logic is to disconnect charging connection, the charging to electronic equipment can be stopped.
It should be noted that above-described embodiment is held with electronic equipment charge protection method by electronic equipment charge protection device
Behavior example is illustrated.In practice, the electronic equipment charge protector that can be provided by previous embodiment, to electricity
Sub- equipment is protected, and concrete implementation mode is referred to the explanation of the embodiment to electronic equipment charge protector, this
Place repeats no more.
It is worth noting that, cost may be relatively high when electronic equipment charge protection method is realized by software mode,
And when being realized by way of hardware circuit, compared to realizing by software mode, cost can be not only reduced, it can also be with faster
Speed, realize protection to electronic equipment.And when being realized by the electronic equipment charge protector that previous embodiment provides,
Compared to the relevant technologies, the energy loss of charge circuit can also be reduced, improves the reliability of charge circuit.
Electronic equipment charge protection method provided by the embodiments of the present application monitors the temperature of electronic equipment charging port first
Value, the then temperature value current according to electronic equipment charging port, and/or the temperature of the previous moment adjacent with current time
Value, determines current charging control logic, finally according to current charging control logic, carries out to the charged state of electronic equipment
Adjustment.Avoid as a result, electronic equipment charging port temperature is excessively high or temperature increases too fast and burns out electronic equipment charging end
The case where mouth, occurs, and protects the safety of electronic equipment.
In order to realize above-described embodiment, the application also proposed a kind of electronic equipment charge protection device.
Fig. 7 is the structural schematic diagram according to the electronic equipment charge protection device of the application one embodiment.
As shown in fig. 7, the electronic equipment charge protection device of the application includes:Monitoring modular 21, the first determining module 22
And adjustment module 23.
Wherein, monitoring modular 21, for monitoring the temperature value of electronic equipment charging port;
First determining module 22, for the temperature value current according to electronic equipment charging port, and/or with current time phase
The temperature value of adjacent previous moment, determines current charging control logic;
Module 23 is adjusted, for being adjusted to the charged state of electronic equipment according to current charging control logic.
Specifically, electronic equipment charge protection device provided by the embodiments of the present application, can be configured in the electronic device,
To execute electronic equipment charge protection method provided by the embodiments of the present application, to realize the charge protection to electronic equipment.Its
In, there are many type of electronic equipment, can be selected according to application, for example, mobile phone, computer etc..
Specifically, above-mentioned first determining module 22, is specifically used for:
If the current temperature value of electronic equipment charging port is greater than first threshold, alternatively, if electronic equipment charging port is worked as
The difference of the temperature value of the preceding temperature value previous moment adjacent with current time is greater than second threshold, it is determined that current charging
Control logic is to disconnect charging connection.
It should be noted that the aforementioned explanation to electronic equipment charge protection method embodiment, is also applied for the reality
The electronic equipment charge protection device of example is applied, realization principle is similar, and details are not described herein again.
Electronic equipment charge protection device provided in this embodiment monitors the temperature value of electronic equipment charging port first,
Then the temperature value current according to electronic equipment charging port, and/or the temperature value of the previous moment adjacent with current time, really
Charging control logic before settled is adjusted the charged state of electronic equipment finally according to current charging control logic.
The charging port temperature for avoiding electronic equipment as a result, is excessively high or temperature increases feelings that are too fast and burning out electronic equipment charging port
Condition occurs, and protects the safety of electronic equipment.
In the exemplary embodiment, a kind of electronic equipment charge protection device is additionally provided.
Fig. 8 is the structural schematic diagram according to the electronic equipment charge protection device of the application another embodiment.
Referring to shown in Fig. 8, on the basis of shown in Fig. 7, the electronic equipment charge protection device of the application can also include:
Second determining module 24, for determining and current according to preset sampling period and current temperature acquisition moment
Adjacent previous temperature acquisition moment at temperature acquisition moment;
Module 25 is obtained, for obtaining temperature value corresponding with the previous temperature acquisition moment.
It should be noted that the implementation process and technical principle of the electronic equipment charge protection device of the present embodiment, referring to
The aforementioned explanation to electronic equipment charge protection method embodiment, details are not described herein again.
Electronic equipment charge protection device provided by the embodiments of the present application monitors the temperature of electronic equipment charging port first
Value, the then temperature value current according to electronic equipment charging port, and/or the temperature of the previous moment adjacent with current time
Value, determines current charging control logic, finally according to current charging control logic, carries out to the charged state of electronic equipment
Adjustment.Avoid as a result, electronic equipment charging port temperature is excessively high or temperature increases too fast and burns out electronic equipment charging end
The case where mouth, occurs, and protects the safety of electronic equipment.
In order to realize above-described embodiment, the application also proposes a kind of electronic equipment.
Electronic equipment provided by the embodiments of the present application may include:Charging port, battery and electricity as described in relation to the first aspect
Sub- equipment charge protects circuit.
Wherein, the temperature sensing assembly 11 in electronic equipment charge protector can be bonded setting and charge in electronic equipment
At port, to detect the temperature at electronic equipment charging port.Thus the control assembly 12 in electronic equipment charge protector,
It can be detected according to the temperature value, and/or the previous moment adjacent with current time that 11 current time of temperature sensing assembly is detected
Temperature value, determine current control logic, and then feed-through assembly 13 can adjust electricity according to the control logic of control assembly 12
The connection status of sub- equipment charge port and charging circuit, with realize electronic equipment charging port temperature is excessively high or temperature liter
When high too fast, avoid burning out electronic equipment charging port, protect the safety of electronic equipment.
It should be noted that the implementation process and technical principle of the electronic equipment of the present embodiment, set electronics referring to aforementioned
The explanation of standby charge protector embodiment, details are not described herein again.
Electronic equipment charge protector in electronic equipment provided by the embodiments of the present application, avoids filling for electronic equipment
Electric port temperature is excessively high or temperature increases too fast and generation the case where burn out electronic equipment charging port, protects electronic equipment
Safety, reduces the energy loss of charge circuit, improves the reliability of charge circuit.
To achieve the above object, the application also proposes a kind of computer readable storage medium.
The wherein computer readable storage medium, is stored thereon with computer program, when which is executed by processor, with
Realize electronic equipment charge protection method described in second aspect embodiment.
In a kind of optional way of realization, the present embodiment can be using any group of one or more computer-readable media
It closes.Computer-readable medium can be computer-readable signal media or computer readable storage medium.It is computer-readable to deposit
Storage media for example may be-but not limited to-system, device or the device of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor
Part, or any above combination.The more specific example (non exhaustive list) of computer readable storage medium includes:Have
The electrical connection of one or more conducting wires, portable computer diskette, hard disk, random access memory (RAM), read-only memory
(ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-
ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.In this document, computer-readable storage
Medium can be any tangible medium for including or store program, which can be commanded execution system, device or device
Using or it is in connection.
Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including --- but
It is not limited to --- electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be
Any computer-readable medium other than computer readable storage medium, which can send, propagate or
Transmission is for by the use of instruction execution system, device or device or program in connection.
The program code for including on computer-readable medium can transmit with any suitable medium, including --- but it is unlimited
In --- wireless, electric wire, optical cable, RF etc. or above-mentioned any appropriate combination.
The computer for executing operation of the present invention can be write with one or more programming languages or combinations thereof
Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++,
Further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with
It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion
Divide and partially executes or executed on a remote computer or server completely on the remote computer on the user computer.?
Be related in the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or
Wide area network (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as mentioned using Internet service
It is connected for quotient by internet).
To achieve the above object, the application also proposes a kind of computer program.Wherein when computer program is held by processor
When row, to realize electronic equipment charge protection method described in second aspect embodiment.
In this application unless specifically defined or limited otherwise, the terms such as term " setting ", " connection " should do broad sense reason
Solution, for example, it may be mechanical connection, is also possible to be electrically connected;It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized:With for realizing the logic gates of logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as the limit to the application
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of application
Type.
Claims (11)
1. a kind of electronic equipment charge protector, which is characterized in that including:
Temperature sensing assembly, for detecting the temperature value at the electronic equipment charging port;
The control assembly being electrically connected with the temperature sensing assembly, for what is detected according to the temperature sensing assembly current time
Temperature value, and/or the temperature value of the previous moment adjacent with current time detection, determine current control logic;
The feed-through assembly being electrically connected with the control assembly adjusts the electricity for the control logic according to the control assembly
The connection status of sub- equipment charge port and charging circuit.
2. protection circuit as described in claim 1, which is characterized in that the control assembly, including:Clock circuit, signal lock
Deposit circuit, the first comparison circuit and logic gates;
The clock circuit, for generating clock signal;
The input terminal of the signal latch circuit is connect with the output end of the temperature sensing assembly, the signal latch circuit
Control terminal, connect with the output end of the clock circuit, each clock signal period for being exported in the clock circuit
It is interior, it latches and exports current clock signal come the temperature value that temporarily obtains;
The first input end of first comparison circuit, connect with the output end of the temperature sensing assembly, the second input terminal with
The output end of the signal latch circuit connects;
The output end of first comparison circuit is connect with the first input end of the logic gates;
Second input terminal of the logic gates is connect with the output end of the temperature sensing assembly, the logic gates
Output end is connect with the control terminal of the feed-through assembly.
3. protection circuit as claimed in claim 2, which is characterized in that the control assembly further includes:Second comparison circuit;
The first input end of second comparison circuit, connect with the output end of the temperature sensing assembly, and described second compares
Second input terminal of circuit is connect with the first preset reference voltage;
The output end of second comparison circuit is connect with the second input terminal of the logic gates;
First comparison circuit and second comparison circuit are respectively hysteresis comparator circuit.
4. protection circuit as claimed in claim 1 or 2, which is characterized in that the temperature sensing assembly includes:First resistor and
The thermistor of setting is bonded with the electronic equipment charging port;
One end of the first resistor is electrically connected with charging circuit, and the one of the other end of the first resistor and the thermistor
The connection of the input terminal of end and the control assembly;
The other end of the thermistor is connected to ground.
5. protection circuit as claimed in claim 4, which is characterized in that the temperature sensing assembly further includes:Third is more electric
Road;
The first input end of the third comparison circuit is connect with the second preset reference voltage, and the of the third comparison circuit
Two input terminals are connect with one end of the other end of the first resistor and the thermistor;
The output end of the third comparison circuit is connect with the input terminal of the control assembly.
6. a kind of electronic equipment charge protection method, which is characterized in that including:
Monitor the temperature value of electronic equipment charging port;
According to the current temperature value of the electronic equipment charging port, and/or the temperature of the previous moment adjacent with current time
Value, determines current charging control logic;
According to the current charging control logic, the charged state of the electronic equipment is adjusted.
7. method as claimed in claim 6, which is characterized in that the temperature current according to the electronic equipment charging port
Value, and/or the temperature value of the previous moment adjacent with current time, determine current charging control logic, including:
If the current temperature value of the electronic equipment charging port is greater than first threshold, alternatively, if the electronic equipment charging end
The difference of the temperature value of the current temperature value of the mouth previous moment adjacent with current time is greater than second threshold, it is determined that current
Charging control logic is to disconnect charging connection.
8. method as claimed in claim 6, which is characterized in that before the current charging control logic of the determination, further include:
According to preset sampling period and current temperature acquisition moment, determine adjacent with the current temperature acquisition moment previous
The temperature acquisition moment;
Obtain temperature value corresponding with previous temperature acquisition moment.
9. a kind of electronic equipment charge protection device, which is characterized in that including:
Monitoring modular, for monitoring the temperature value of electronic equipment charging port;
First determining module, for the temperature value current according to the electronic equipment charging port, and/or it is adjacent with current time
Previous moment temperature value, determine current charging control logic;
Module is adjusted, for being adjusted to the charged state of the electronic equipment according to the current charging control logic.
10. a kind of electronic equipment, which is characterized in that including charging port, battery and electronics a method as claimed in any one of claims 1 to 5
Equipment charge protects circuit.
11. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
When processor executes, to realize such as electronic equipment charge protection method as claimed in claim 6 to 8.
Priority Applications (1)
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CN201810890532.5A CN108899959A (en) | 2018-08-07 | 2018-08-07 | Electronic equipment charge protector, method, apparatus, electronic equipment and medium |
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CN201810890532.5A CN108899959A (en) | 2018-08-07 | 2018-08-07 | Electronic equipment charge protector, method, apparatus, electronic equipment and medium |
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Application publication date: 20181127 |