CN106026255B - A kind of charge control method and charging system applied to charging system - Google Patents
A kind of charge control method and charging system applied to charging system Download PDFInfo
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- CN106026255B CN106026255B CN201610463999.2A CN201610463999A CN106026255B CN 106026255 B CN106026255 B CN 106026255B CN 201610463999 A CN201610463999 A CN 201610463999A CN 106026255 B CN106026255 B CN 106026255B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 171
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 5
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- 230000006735 deficit Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The present invention relates to monitoring control fields, disclose a kind of charge control method and charging system applied to charging system.In the present invention, a kind of charge control method applied to charging system is disclosed, comprising: when charging system is not powered on, detect the original temperature of charging system；When charging system is powered, the thermal energy value that transmission line issues is obtained；Using the corresponding relationship of preset thermal energy and temperature, the corresponding temperature of thermal energy value is searched；Found temperature and original temperature are utilized, the actual temperature of transmission line is obtained；If actual temperature is higher than the first preset value, the power of charging system is reduced.A kind of charging system is also disclosed in the present invention.Embodiment of the present invention in terms of existing technologies, can monitor the temperature on the temperature of entire charging system, especially transmission line, avoid charging system by excessive temperature damage, reduce charging system route or component temperature it is excessively high and damage occur probability.
Description
Technical field
The present invention relates to monitoring control field, in particular to a kind of charge control methods and charging applied to charging system
System.
Background technique
With the prevalence of mobile terminal large current charge, entire charging circuit is related to the assembling and shifting of many correlatives
The Diversification Problem of dynamic terminal use environment, it is easy to appear some moulds burnt out in charging circuit during large current charge
The problem of block.
In existing technology, charging system, temperature is detected by thermistor, then according to state of temperature, adjustment is filled
Electric current realizes the protection to charging system, but utilizes thermistor temperature detecting, can only measure several specific temperature measuring points, such as
Charging chip and general-purpose serial bus USB mouth end etc., not can guarantee to the comprehensive of charging system temperature detection, to reduce
The accuracy of temperature monitoring.
Summary of the invention
The purpose of the present invention is to provide a kind of charge control methods and charging system applied to charging system, so that filling
Electric system avoids damaging because of the excessive temperature of transmission line, to reduce the probability of charging system damage.
In order to solve the above technical problems, embodiments of the present invention provide a kind of charge control applied to charging system
Method comprising the steps of:
When charging system is powered, the thermal energy value that transmission line issues is obtained；
Using the corresponding relationship of preset thermal energy and temperature, the corresponding temperature of thermal energy value is searched；
The original temperature for utilizing found temperature and prestoring, obtains the actual temperature of transmission line；
If actual temperature is higher than the first preset value, the power of charging system is reduced.
Embodiments of the present invention additionally provide a kind of charging system, comprising:
First obtains module, for obtaining the thermal energy value that transmission line issues when charging system is powered；
Searching module searches the corresponding temperature of thermal energy value for the corresponding relationship using preset thermal energy and temperature；
Second obtains module, for utilizing found temperature and the original temperature prestored, obtains the reality of transmission line
Temperature；And when actual temperature is higher than the first preset value, trigger control module；
Control module, for reducing the power of charging system.
Embodiment of the present invention in terms of existing technologies, when charging system is powered, passes through detection transmission line electric energy
Parameter is converted using electric heating, is obtained circuit and is issued thermal energy, and using default thermal energy and vs. temperature, finds corresponding temperature
Degree obtains transmission line actual temperature according to the difference of corresponding temperature and original temperature, if actual temperature is higher than the first preset value, drop
Low charging system power, the electric energy that charging system generates reduce, and the thermal energy of conversion can also reduce therewith, the temperature of transmission line after adjustment
Degree reduces, so as to avoid because temperature it is excessively high, caused line impairment, and combine the prior art to the temperature detection of charge member
Protection, realizes the comprehensive monitoring to entire charging system.In embodiment of the present invention, obtain circuit system original temperature and
The corresponding temperature of thermal energy that the electric energy that circuit generates is converted, obtains the actual temperature of transmission line, by reducing excessively high circuit
Power to reduce transmission line temperature, and then is realized to the comprehensive monitoring of charging system transmission line, avoids transmission line because of temperature
Spend line impairment caused by height.
In addition, obtaining in the thermal energy value that transmission line issues, specifically include: when charging system is powered, detecting Charging
The electric current of the voltage drop at transmission line both ends and charging system in system；Utilize voltage drop and electric current and charging system
Conduction time calculates the thermal energy value of transmission line sending.The pressure drop of transmission line both end voltage, the electric current of charging system and charging
There are certain relationships between the conduction time of system, and the thermal energy value of route generation can be quick and precisely obtained by the relationship.
In addition, charging system includes: charger, charging interface and charging chip；Is connected between charging interface and charger
One transmission line, connects second transmission line between charging chip and charging interface；When charging system is powered, detects and passed in charging system
In the voltage drop at defeated route both ends, respectively detect first transmission line and second transmission line voltage drop, be denoted as respectively Uab and
Ucd；It in the thermal energy value for calculating transmission line sending, specifically includes: utilizing the logical of Uab and electric current and the charging system
The electric time calculates the thermal energy value of first transmission line sending；Using the conduction time of Ucd and electric current and charging system, calculate
The thermal energy value that second transmission line issues out.The calorie value for calculating each section of transmission line in charging system prevents any one section
Transmission line temperature is excessively high, and route is caused to damage, so as to cause entire charging system failure.
In addition, specifically including in detection Uab and Ucd: detecting the electricity at first transmission line both ends respectively using voltage output line
The voltage of pressure and second transmission line both ends；Uab is calculated using the voltage at the first transmission line both ends measured, utilizes measured
The voltage at two transmission line both ends calculates Ucd.It in the calculating of route heat, is calculated according to the voltage for getting route both ends
The voltage difference of both end voltage out further calculates the heat of route generation, voltage output line and circuit system by the voltage difference
Transmission line link together, it is convenient to detect route both end voltage at any time, also, its say with the parameters such as material just as, not vulnerable to
It is influenced to other factors, acquired results accuracy is higher.
In addition, turning off the signal wire of charging interface if actual temperature is higher than safety temperature value；Wherein, safety temperature
Value is higher than the first preset value.Using the processing scheme more than the first preset value temperature, it not can effectively solve that actual temperature is higher than
The problem of safety temperature value.The signal wire for turning off charging interface could really solve interface actual temperature higher than safety temperature value
The problem of.The control of charging system is carried out according to different temperatures, different processing methods can be arranged according to temperature difference, it can
With it is more flexible, targetedly overtemperatute is handled.
In addition, reducing in the power of charging system, by reducing the voltage value and/or current value of charging system, reduction is filled
The power of electric system.In the calculation formula of power, the size of power is controlled by the size of voltage and electric current two parts value, changes function
The value of rate can accordingly adjust voltage, electric current or the value for adjusting voltage and current simultaneously.
In addition, reducing in the power of charging system, according to the size of the voltage value of charging system, it is determined whether reduce charging
The voltage value of system.If charging system voltage is too small, undercharge can be caused, component cannot maintain normal work problem,
Charging system current value can be reduced, to reduce charging system power.
In addition, the voltage value of charging system is reduced if the voltage value of charging system is more than the second preset value, otherwise,
Reduce the current value of charging system.Second preset value is much higher than the voltage minimum of charging system, and charging voltage is excessive, can lead
Cause circuit system fast heating.
In addition, in charge control method, further includes: monitor the temperature of the component of the charging system；If detected
The temperature of the component is more than third preset value, then executes the power for reducing charging system.It further limits in first device
Part when the temperature is excessively high, also needs the power for reducing charging system, so that the monitoring temperature of entire charging system is more perfect.
In addition, the corresponding relationship of preset thermal energy and temperature, determines according to the material of the transmission line.Different route materials
Different heat generating temperature corresponding relationships is answered in confrontation, if replacement material, needs the corresponding relationship for redefining heat generating temperature.
Detailed description of the invention
Fig. 1 is a kind of process of charge control method applied to charging system of first embodiment according to the present invention
Figure；
Fig. 2 is a kind of process of charge control method applied to charging system of second embodiment according to the present invention
Figure；
Fig. 3 is a kind of charging system circuit diagram applied to charging system of second embodiment according to the present invention；
Fig. 4 is a kind of process of charge control method applied to charging system of third embodiment according to the present invention
Figure；
Fig. 5 is a kind of process of charge control method applied to charging system of the 4th embodiment according to the present invention
Figure；
Fig. 6 is a kind of process of charge control method applied to charging system of the 5th embodiment according to the present invention
Figure；
Fig. 7 is the structural schematic diagram of the charging system of sixth embodiment according to the present invention；
Fig. 8 is the structural schematic diagram of the charging system of the 7th embodiment according to the present invention；
Fig. 9 is the structural schematic diagram of the charging system of the 8th embodiment according to the present invention；
Figure 10 is the structural schematic diagram of the charging system of the tenth embodiment according to the present invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, below in conjunction with attached drawing to this hair
Bright each embodiment is explained in detail.However, it will be understood by those skilled in the art that in each implementation of the invention
In mode, in order to make the reader understand this application better, many technical details are proposed.But it is even if thin without these technologies
Section and various changes and modifications based on the following respective embodiments, also may be implemented the application technical solution claimed.
First embodiment of the invention is related to a kind of charge control method applied to charging system.Detailed process such as Fig. 1 institute
Show, the present embodiment specifically includes:
Step 101, charging system be powered when, obtain transmission line issue thermal energy value；
Step 102, using the corresponding relationship of preset thermal energy and temperature, search the corresponding temperature of the thermal energy value；
Step 103, the original temperature for utilizing found temperature and prestoring, obtain the actual temperature of the transmission line；
If the actual temperature is higher than the first preset value, the power of the charging system is reduced.
It should be noted that the original temperature prestored can be preset value, or when charging system is not powered on, inspection
The original temperature of the charging system measured.
Embodiment of the present invention in terms of existing technologies, when charging system is powered, passes through detection transmission line electric energy
Parameter is converted using electric heating, is obtained circuit and is issued thermal energy, and using default thermal energy and vs. temperature, finds corresponding temperature
Degree obtains transmission line actual temperature according to the difference of corresponding temperature and original temperature, if actual temperature is higher than the first preset value, drop
Low charging system power, the electric energy that charging system generates reduce, and the thermal energy of conversion can also reduce therewith, the temperature of transmission line after adjustment
Degree reduces, so as to avoid because temperature it is excessively high, caused line impairment, and combine the prior art to the temperature detection of charge member
Protection, realizes the comprehensive monitoring to entire charging system.In embodiment of the present invention, obtain circuit system original temperature and
The corresponding temperature of thermal energy that the electric energy that circuit generates is converted, obtains the actual temperature of transmission line, by reducing excessively high circuit
Power to reduce transmission line temperature, and then is realized to the comprehensive monitoring of charging system transmission line, avoids transmission line because of temperature
Spend line impairment caused by height.
Second embodiment of the present invention is the specific expansion in first embodiment, second embodiment of the present invention
It is related to a kind of charge control method applied to charging system.Second embodiment is to have done in first embodiment further
Improvement, mainly the improvement is that: charging system be powered when, detect charging system in transmission line both ends voltage drop
With the electric current of charging system；Using the conduction time of voltage drop and electric current and charging system, transmission line sending is calculated
Thermal energy value.Also, the corresponding relationship of preset thermal energy and temperature is determined according to the material of transmission line.Detailed process such as Fig. 2
Shown, the present embodiment specifically includes:
In step 201, judge whether charging system is powered, if charging system is not powered, enters step in 202, it is no
Then, it enters step in 203.Specifically, the charging system in the present embodiment can be the charging circuit of mobile phone, mobile hard disk
Charging circuit or the charging circuit of computer etc., since the temperature of the charging system and the electrifying system not being powered of energization is
It is inconsistent, and the acquisition methods of temperature be it is inconsistent, therefore, first determine whether charging system is powered, if Charging
System is not powered, then enters step in 202, if charging system is being powered, enter step in 203.
In step 202, the original temperature of charging system is detected.Specifically, when charging system is not powered on, detection charging
The original temperature of system, for the charging circuit system not being powered, the temperature of each part of path is consistent in charging circuit,
Wherein each section of route of temperature is related with environment temperature locating for entire charging circuit system, for example, entire charging system is in
Environment temperature higher summer, temperature can be 20 degrees Celsius, then the charging system is in the case where uncharged, in charging circuit
The temperature of each part of path is the same, and consistent with extraneous environment temperature is 20 degrees Celsius；If entire charging system is in
Environment temperature lower winter, temperature may be 1 degree Celsius, then the charging system is in the case where uncharged, in charging circuit
The temperature of each part of path is 1 degree Celsius.
In the case of charging system is not powered, the original temperature of charging system can be constantly detected, until charging system is powered
Until, since charging system is in the case where being not powered on, the original temperature of each element and route is determined by environment temperature,
And environment temperature is a uncontrollable factor, with the difference of time, environment temperature is possible changed, if environment
Temperature changes, correspondingly, charging system is in the case where being not powered on, the original temperature of each element and route in system
It can change with the variation of environment temperature, this just needs the original temperature of real-time detection update charging system, to get
Charging system original temperature value the most accurate.
In addition, can also only be detected once in practical application, even if next time determines that charging system is not powered on again, also not
It repeats to detect, reduces system power dissipation.
In step 203, when charging system is powered, the thermal energy value that transmission line issues is obtained.Specifically, charging system
In the case where energization, the temperature of internal element and transmission line will not be consistent with extraneous environment temperature, due to
During charging system is powered, it can will pass through the part electric energy of charging system, be converted into thermal energy, the mistake of this energy conversion
The temperature of Cheng Zhong, charging system will have corresponding variation according to thermal energy, therefore, first have to obtain charging system transmission line logical
In the case where electricity, the thermal energy of generation.
It is noted that charging system be powered when, detect charging system in transmission line both ends voltage drop and
The electric current of charging system；Using the conduction time of voltage drop and electric current and charging system, transmission line sending is calculated
Thermal energy value.Thermal energy on charging system transmission line cannot directly be measured by existing element, need to measure charging system
Electric current, the current value size on electric current and transmission line for passing through each element due to charging system are the same, only need
Measure the current value of any point on element or transmission line in charging system；Also need measurement charging system transmission line both ends
Voltage drop, since the parameters such as length of every section of transmission line are different in charging system, then the energy generated also can be different,
For every section of transmission line, the voltage at its route both ends is measured respectively, and calculates the voltage drop at both ends；When different energization
Long, the thermal energy generated on transmission line also can be different, therefore, the energization period of record charging system also needed, finally, by measuring
The voltage drop at the transmission line both ends arrived, the conduction time of the electric current of charging system and charging system and these three components
Between relationship, each section of transmission line is calculated during the energization, the thermal energy value of sending.
Say in more detail, the charging system circuit diagram in present embodiment as shown in figure 3, comprising: charger fills
Electrical interface and charging chip；First transmission line 1 is connected between charging interface and charger, and the is connected between charging chip and charging interface
Two transmission lines 2.
Specific transmission line thermal energy calculation method are as follows: when charging system is powered, detect transmission line two in charging system
In the voltage drop at end, the voltage drop of first transmission line 1 and second transmission line 2 is detected respectively, is denoted as Uab and Ucd respectively.
It is noted that being specifically included in detection Uab and Ucd: detecting the respectively using voltage output line 3,4,5,6
The voltage at 2 both ends of voltage and second transmission line at one transmission line, 1 both ends；Utilize the potentiometer at 1 both ends of first transmission line measured
Uab is calculated, calculates Ucd using the voltage at 2 both ends of second transmission line measured.Wherein, voltage output line and charging system
The parameters such as material used in transmission line are consistent, this reduces other factors to transmission line both end voltage obtain in be likely to occur
Adverse effect.
It in the thermal energy value for calculating transmission line sending, specifically includes: utilizing the logical of Uab and electric current and charging system
The electric time calculates the thermal energy value of first transmission line sending；Using the conduction time of Ucd and electric current and charging system, calculate
The thermal energy value that second transmission line issues out.Calculate separately out the thermal energy value of first transmission line 1 and second transmission line 2.
In step 204, using the corresponding relationship of preset thermal energy and temperature, the corresponding temperature of thermal energy value is searched.Specifically
It says, the corresponding relationship of preset thermal energy and temperature can be charging system during the test, pair of the thermal energy and temperature that measure
It should be related to, which can be is saved in the form of table, figure, text etc..For example, the charging system transmission line got
Thermal energy value be 5, in thermal energy table corresponding with temperature, thermal energy value be 5 when, corresponding transmission line temperature be 20 degrees Celsius, then this
When corresponding transmission line temperature be just 20 degrees Celsius.
It is noted that the corresponding relationship of preset thermal energy and temperature, determines, different materials according to the material of transmission line
The transmission line of matter obtains temperature corresponding to same thermal energy and is different.For example, being obtained if transmission line material is copper
Thermal energy value when be 5, the corresponding temperature in preset thermal energy and vs. temperature table is 20 degrees Celsius；If transmission line
Road material is iron, and when the thermal energy value of acquisition is 5, the corresponding temperature in preset thermal energy and vs. temperature table is 25
Degree Celsius.Before preset thermal energy and vs. temperature are searched, the material of transmission line in charging system can be determined first,
By unlike material, it is different to find corresponding temperature.
In step 205, the actual temperature of transmission line is obtained.Specifically, found temperature and original temperature are utilized,
The actual temperature for obtaining transmission line is calculated, the actual temperature of transmission line is under the influence of no environment temperature, by charging system
Be powered and convert thermal energy caused by, therefore, in the transmission line temperature of acquisition, original temperature when being not powered on is subtracted
It goes, to can just obtain the actual temperature of transmission line, the acquisition of temperature can be more accurate.
In step 206, judge whether transmission line actual temperature is higher than the first preset value, if the practical temperature that transmission line obtains
Degree is higher than the first preset value, enters step in 207, otherwise, terminates this operation.Specifically, the first preset value can be use
The temperature value that family is arranged according to the temperature that transmission line can be born, when the temperature on charging system transmission line be more than this first
When preset value, if not taking appropriate measures to charging system, the transmission line in charging system may result in due to temperature
Height is spent, entire charging system is caused to damage.Therefore, if it exceeds the first preset value, then enter step in 207.
In step 207, charging system power is reduced.Specifically, it if the actual temperature of route is excessively high, fills in order to prevent
The transmission line of electric system can reduce the power of charging system, reduce the power meeting of charging system because of the reason of temperature damages
So that charging system transmission line electric energy reduces, the thermal energy of electric energy conversion will be reduced, and the temperature of transmission line will reduce accordingly,
Therefore, transmission line at this time would not be damaged because temperature is excessively high, ensure that the safety of charging system circuit.
Present embodiment in terms of existing technologies, charging system be powered when, by detect transmission line electrical energy parameter,
It is converted using electric heating, obtains circuit and issue thermal energy, and using default thermal energy and vs. temperature, find corresponding temperature, root
According to the difference of corresponding temperature and original temperature, transmission line actual temperature is obtained, if actual temperature is higher than the first preset value, reduces charging
System power, the electric energy that charging system generates reduce, and the thermal energy of conversion can also reduce therewith, the temperature drop of transmission line after adjustment
It is low, so as to avoid because temperature it is excessively high, caused line impairment, and the prior art is combined to protect the temperature detection of charge member
Shield, realizes the comprehensive monitoring to entire charging system.In embodiment of the present invention, circuit system original temperature and electricity are obtained
The corresponding temperature of thermal energy that the electric energy that road generates is converted, obtains the actual temperature of transmission line, by reducing excessively high circuit function
Rate to reduce transmission line temperature, and then is realized to the comprehensive monitoring of charging system transmission line, avoids transmission line because of temperature
Line impairment caused by excessively high.
Third embodiment of the present invention is related to a kind of charge control method applied to charging system.Third embodiment
It is to have done further improvement in second embodiment, mainly thes improvement is that: by calculates every section of biography in charging system
The thermal energy that defeated line obtains finds the corresponding different transmission line temperature of the thermal energy, when the actual temperature of transmission line is higher than safety temperature
When angle value, the signal wire of charging interface is turned off.The overtemperature value size different for transmission line takes different schemes to control transmission
Temperature on line, so that diversification more flexible for the processing mode of transmission line overtemperature.
The flow chart of present embodiment is as shown in figure 4, specific as follows:
Step 201 of the step 401 into 405 and step 408,409 and second embodiment in present embodiment is to 207
Similar, details are not described herein, and present embodiment is to joined 406 and 407 two steps in example 2.
In step 406, judge whether actual temperature is higher than safety temperature value, if actual temperature is higher than safety temperature value,
It then enters step in 407, otherwise, enters step in 408.
Specifically, safety temperature value is the requirement temperature in product certification to product safety, it is default that first can be higher than
Value.Therefore, it first determines whether the actual temperature of transmission line is higher than safety temperature value, hereafter, then further is operated.
In step 407, the signal wire of charging interface is turned off.Specifically, the actual temperature when transmission line is higher than safety temperature
When spending, only reduce power operation can not solve the problems, such as transmission line temperature it is excessively high this, at this time just need turn off fill
The signal wire of electrical interface, the transmission between stop signal guarantee the safety of the information in charging equipment.
4th embodiment of the invention is related to a kind of charge control method applied to charging system.4th embodiment
Be to have done further improvement in second embodiment, mainly the improvement is that: having expanded reduces charging system power
Specific method reduces in the power of charging system, by reducing the voltage value of charging system, current value or simultaneously reducing voltage
Value and current value avoid component cisco unity malfunction caused by due to reducing charging system voltage value or current value, charging
The problems such as system communications line, too fast element heating, improves the feasible of this method so that charge control method is more safe and reliable
Property.
The flow chart of present embodiment is as shown in figure 5, specific as follows:
Step 201 of the step 501 into 506 and second embodiment in present embodiment is to 206 similar, herein not
It repeats again.
In step 507, charging system voltage value is judged whether more than the second preset value, if charging system voltage value is more than
Second preset value, enters step in 509, otherwise, executes step 508.Specifically, working as charging system transmission line actual temperature
When higher than the first preset value, system power can be reduced, to reduce the temperature of charging system transmission line.Reduce charging system
In power, according to the size of the voltage value of charging system, it is determined whether reduce the voltage value of charging system.Second preset value is to use
Particular attribute of the family according to different charging systems, an artificial defined preset value, for different charging systems, the preset value
Size can be different.
In step 508, charging system current value is reduced.Specifically, if the voltage value of charging system is less than second
Preset value then reduces the current value of charging system.If the voltage value of reduction charging system simply, will lead to undercharge,
Other components in charging system are unable to maintain that the running of normal work, at this point it is possible to the electricity appropriate for reducing charging system
Flow valuve can also play the effect for reducing charging system power.
In step 509, charging system voltage value is reduced.Specifically, if the voltage value of charging system is more than second pre-
If value, then reduce the voltage value of charging system, charging system voltage is excessive, will lead to charging system temperature rise it is too fast, be easy
The damage of route is caused, at this point it is possible to the voltage value appropriate reduced in charging system.
5th embodiment of the invention is related to a kind of charge control method applied to charging system.5th embodiment
It is to have done further improvement in second embodiment, mainly thes improvement is that: joined component temperature in charging system
The monitoring of degree, has expanded the detection to component temperature, and the damage of charging system is probably derived from component or transmission line
Damage under controlling transmission line temperature, while monitoring the temperature of component, so that the scheme of charge control is more perfect.
The flow chart of present embodiment is as shown in fig. 6, specific as follows:
Step 201 of the step 601 into 607 and second embodiment in present embodiment is to 207 similar, herein not
It repeats again.
In step 608, judge whether component actual temperature is more than third preset value in charging system, if charging system
Middle component actual temperature has been more than third preset value, then enters step in 607, otherwise, end operation.Specifically, third
Preset value is the temperature upper limit of the component of user preset worked normally, for different components, third preset value
It is of different sizes, if the temperature for detecting component is more than third preset value, corresponding operation is executed, finally ensures Charging
The safety of system.
The step of various methods divide above, be intended merely to describe it is clear, when realization can be merged into a step or
Certain steps are split, multiple steps are decomposed into, as long as comprising identical logical relation, all in the protection scope of this patent
It is interior；To adding inessential modification in algorithm or in process or introducing inessential design, but its algorithm is not changed
Core design with process is all in the protection scope of the patent.
Corresponding above method embodiment, sixth embodiment of the invention are related to a kind of charging system, which can be with
It is arranged in various electronic, such as mobile phone, tablet computer, PDA, laptop and PC etc., which makees
For the executing subject of step in above-mentioned each method embodiment, as shown in fig. 7, the electronic equipment includes:
First obtains module 71, for obtaining the thermal energy value that transmission line issues when the charging system is powered.
Searching module 72 searches the corresponding temperature of the thermal energy value for the corresponding relationship using preset thermal energy and temperature
Degree.
Second obtains module 73, for utilizing found temperature and the original temperature prestored, obtains the transmission line
Actual temperature；And when the actual temperature is higher than the first preset value, trigger control module 74.
It should be noted that the original temperature prestored can be preset value, or when charging system is not powered on, inspection
The original temperature of the charging system measured.
The control module 74, for reducing the power of the charging system.
This law embodiment detects charging system original temperature, the original temperature and environment temperature when system is not powered on
Unanimously.For charging system when being powered, the electric energy on transmission line can be partially converted into thermal energy, and first obtains module 71, for filling
When electric system is powered, the thermal energy value that transmission line issues is obtained.Due to having preset the corresponding relationship of thermal energy and temperature, can pass through
Searching module 72 searches the corresponding temperature of thermal energy value got.Second obtains module 73, obtains what searching module 72 was found
The difference of temperature and the original temperature prestored, and when actual temperature is higher than the first preset value, trigger control module 74 controls mould
Block 74 reduces the power of charging system, so that the actual temperature on transmission line reduces, realizes to charging system transmission line
Comprehensive monitoring, avoid transmission line because temperature it is excessively high caused by line impairment.
7th embodiment of the invention is related to a kind of charging system.7th embodiment is done in sixth embodiment
Further improvement, mainly thes improvement is that: the first acquisition module further includes that detection sub-module and first obtain module,
In, detection sub-module includes detection unit, and computational submodule includes the first computing unit and the second computing unit.
The structural schematic diagram of charging system is as shown in figure 8, specifically include in present embodiment:
Detection module 81, for detecting the original temperature of charging system when charging system is not powered on.
First obtains module 82, for obtaining the thermal energy value that transmission line issues when charging system is powered.
First obtains module 82, specifically includes:
Detection sub-module 821, for detecting the voltage pressure at transmission line both ends in charging system when charging system is powered
The electric current of drop and charging system；Detection sub-module 821 specifically includes detection unit 8211, for detecting first transmission respectively
The voltage drop of line and second transmission line, is denoted as Uab and Ucd respectively.
Computational submodule 822 calculates biography for the conduction time using voltage drop and electric current and charging system
The thermal energy value that defeated route issues.In computational submodule 822, specifically include:
First computing unit 8221, when for utilizing the energization of the Uab and the electric current and the charging system
Between, calculate the thermal energy value that the first transmission line issues.
Second computing unit 8222, when for utilizing the energization of the Ucd and the electric current and the charging system
Between, calculate the thermal energy value that the second transmission line issues.
Searching module 83 searches the corresponding temperature of thermal energy value for the corresponding relationship using preset thermal energy and temperature.Tool
Body says that the corresponding relationship of preset thermal energy and temperature can be determined according to the material of the transmission line.
Second obtains module 84, for utilizing found temperature and the original temperature prestored, obtains the reality of transmission line
Border temperature；And when actual temperature is higher than the first preset value, trigger control module 85；Control module 85, for reducing Charging
The power of system.
It is not difficult to find that present embodiment is system embodiment corresponding with second embodiment, present embodiment can be with
Second embodiment is worked in coordination implementation.The relevant technical details mentioned in second embodiment still have in the present embodiment
Effect, in order to reduce repetition, which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in
In second embodiment.
It is noted that each module involved in present embodiment is logic module, and in practical applications, one
A logic unit can be a physical unit, be also possible to a part of a physical unit, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude innovative part of the invention, it will not be with solution institute of the present invention in present embodiment
The technical issues of proposition, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
8th embodiment of the invention is related to a kind of charging system.8th embodiment is done in the 7th embodiment
Further improvement, mainly thes improvement is that: by calculating the thermal energy that every section of transmission line obtains in charging system, finding
The corresponding different transmission line temperature of the thermal energy turn off charging interface when the actual temperature of transmission line is higher than safety temperature value
Signal wire.The overtemperature value size different for transmission line takes different schemes to control the temperature on transmission line, so that for passing
The more flexible diversification of processing mode of defeated line overtemperature.
The structural schematic diagram of charging system is with Fig. 8 in the 7th embodiment as shown in figure 9, compare in present embodiment,
It increases with lower module:
Module 96 is turned off, for turning off the signal wire of charging interface when actual temperature is higher than safety temperature value.
9th embodiment of the invention is related to a kind of charging system.9th embodiment is done in the 7th embodiment
Further improvement, mainly thes improvement is that: having expanded the specific method for reducing charging system power, has reduced charging system
Power in, by reducing the voltage value of charging system, current value or simultaneously reducing voltage value and current value, avoid due to drop
Component cisco unity malfunction caused by low charging system voltage value or current value, charging system transmission line, element heating mistake
The problems such as fast, improves the feasibility of this method so that charge control method is more safe and reliable.
Specifically, in the control module of present embodiment, by reducing the voltage value and/or current value of charging system,
Reduce the power of charging system.More specifically, according to the size of the voltage value of charging system, it is determined whether reduce charging system
Voltage value.It further says, when the voltage value of charging system is more than the second preset value, reduces the voltage value of charging system,
Otherwise, the current value of charging system is reduced.
Tenth embodiment of the invention is related to a kind of charging system.Tenth embodiment is done in the 7th embodiment
Further improvement, mainly thes improvement is that: joined the monitoring of component temperature in charging system, expanded to first device
The detection of part temperature, the damage of charging system are probably derived from the damage of component or transmission line, control transmission line temperature
Under, while the temperature of component is monitored, so that the scheme of charge control is more perfect.
The structural schematic diagram of charging system Fig. 8 as shown in Figure 10 in the 7th embodiment is compared in present embodiment,
It increases with lower module:
Monitoring modular 1007, the temperature of the component for monitoring charging system；It is more than in the temperature for detecting component
When third preset value, trigger control module 1005.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (17)
1. a kind of charge control method applied to charging system characterized by comprising
When charging system is powered, the thermal energy value that transmission line issues is obtained；
Using the corresponding relationship of preset thermal energy and temperature, the corresponding temperature of the thermal energy value is searched；
The original temperature for utilizing found temperature and prestoring, obtains the actual temperature of the transmission line；
If the actual temperature is higher than the first preset value, the power of the charging system is reduced；
Wherein, described to obtain in the thermal energy value that transmission line issues, it specifically includes:
When the charging system is powered, the voltage drop at transmission line both ends and the Charging in the charging system are detected
The electric current of system；
Using the conduction time of the voltage drop and the electric current and the charging system, the transmission line is calculated
The thermal energy value of sending.
2. the charge control method according to claim 1 applied to charging system, which is characterized in that the charging system
Include: charger, charging interface and charging chip；First transmission line, the charging are connected between the charging interface and charger
Second transmission line is connected between chip and charging interface；
When the charging system is powered, detects in the charging system in the voltage drop at transmission line both ends, detect respectively
The voltage drop of the first transmission line and second transmission line, is denoted as Uab and Ucd respectively；
In the thermal energy value for calculating transmission line sending, specifically include:
Using the conduction time of the Uab and the electric current and the charging system, calculates the first transmission line and issue
Thermal energy value；
Using the conduction time of the Ucd and the electric current and the charging system, calculates the second transmission line and issue
Thermal energy value.
3. the charge control method according to claim 2 applied to charging system, which is characterized in that detect the Uab
In Ucd, specifically include:
Detect the voltage at the first transmission line both ends and the voltage at the second transmission line both ends respectively using voltage output line；
The Uab is calculated using the voltage at the first transmission line both ends measured, utilizes the second transmission line measured
The voltage at both ends calculates the Ucd.
4. the charge control method according to claim 2 applied to charging system, which is characterized in that if the reality
Temperature is higher than safety temperature value, then turns off the signal wire of the charging interface；
Wherein, the safety temperature value is higher than first preset value.
5. the charge control method according to claim 1 applied to charging system, which is characterized in that the reduction charging
In the power of system, by reducing the voltage value and/or current value of the charging system, the power of the charging system is reduced.
6. the charge control method according to claim 5 applied to charging system, which is characterized in that the reduction charging
In the power of system, according to the size of the voltage value of the charging system, it is determined whether reduce the voltage value of the charging system.
7. the charge control method according to claim 6 applied to charging system, which is characterized in that if the charging
The voltage value of system is more than the second preset value, then reduces the voltage value of the charging system, otherwise, reduces the charging system
Current value.
8. the charge control method as claimed in any of claims 1 to 7 applied to charging system, feature exist
In in the charge control method, further includes:
Monitor the temperature of the component of the charging system；If detecting that the temperature of the component is more than third preset value,
Then execute the power for reducing charging system.
9. the charge control method as claimed in any of claims 1 to 7 applied to charging system, feature exist
In the corresponding relationship of the preset thermal energy and temperature is determined according to the material of the transmission line.
10. a kind of charging system characterized by comprising
First obtains module, for obtaining the thermal energy value that transmission line issues when the charging system is powered；
Searching module searches the corresponding temperature of the thermal energy value for the corresponding relationship using preset thermal energy and temperature；
Second obtains module, for utilizing found temperature and the original temperature prestored, obtains the reality of the transmission line
Border temperature；And when the actual temperature is higher than the first preset value, trigger control module；
The control module, for reducing the power of the charging system；
Wherein, described first module is obtained, specifically included:
Detection sub-module, for detecting the voltage at transmission line both ends in the charging system when the charging system is powered
The electric current of pressure drop and the charging system；
Computational submodule is calculated for the conduction time using the voltage drop and the electric current and the charging system
The thermal energy value that the transmission line issues out.
11. charging system according to claim 10, which is characterized in that the charging system includes: charger, charging
Mouth and charging chip；First transmission line, the charging chip and the charging are connected between the charging interface and the charger
Second transmission line is connected between interface；
The detection sub-module specifically includes detection unit, for detecting the electricity of the first transmission line and second transmission line respectively
Pressure drop is pressed, is denoted as Uab and Ucd respectively；
In the computational submodule, specifically include:
First computing unit is calculated for the conduction time using the Uab and the electric current and the charging system
The thermal energy value that the first transmission line issues；
Second computing unit is calculated for the conduction time using the Ucd and the electric current and the charging system
The thermal energy value that the second transmission line issues.
12. charging system according to claim 11, which is characterized in that the charging system further includes shutdown module, is used
In when the actual temperature is higher than safety temperature value, the signal wire of the charging interface is turned off；
Wherein, the safety temperature value is higher than first preset value.
13. charging system according to claim 10, which is characterized in that in the control module, by being filled described in reduction
The voltage value and/or current value of electric system, reduce the power of the charging system.
14. charging system according to claim 13, which is characterized in that in the control module, according to the Charging
The size of the voltage value of system, it is determined whether reduce the voltage value of the charging system.
15. charging system according to claim 14, which is characterized in that in the voltage value of the charging system be more than second
When preset value, the voltage value of the charging system is reduced, otherwise, reduces the current value of the charging system.
16. charging system described in any one of 0 to 15 according to claim 1, which is characterized in that the charging system also wraps
It includes:
Monitoring modular, the temperature of the component for monitoring the charging system；Detecting that the temperature of the component is more than
When third preset value, the control module is triggered.
17. charging system described in any one of 0 to 15 according to claim 1, which is characterized in that the preset thermal energy with
The corresponding relationship of temperature is determined according to the material of the transmission line.
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| CN112378544B (en) * | 2020-11-09 | 2023-05-05 | 深圳易瓦科技有限公司 | Multiplexing detection circuit, connector, monitoring system and electric automobile |
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