CN103904377A - Quick charging method and mobile terminal - Google Patents
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- CN103904377A CN103904377A CN201410124249.3A CN201410124249A CN103904377A CN 103904377 A CN103904377 A CN 103904377A CN 201410124249 A CN201410124249 A CN 201410124249A CN 103904377 A CN103904377 A CN 103904377A
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- 238000007600 charging Methods 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000003321 amplification Effects 0.000 claims description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 2
- 238000013021 overheating Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a quick charging method and a mobile terminal. The quick charging method comprises the following steps of detecting the temperature of at least two parts of a terminal device in the charging process; judging whether the temperature of each part reaches a respective threshold value or not; adopting a preset charging strategy according to the judgment result. The preset charging strategy is adopted by detecting the temperature of each part of the terminal device and comprehensively considering the temperature variation situation of each part. When the temperature is excessively high, the overheat protection is carried out, and the charging is stopped or the charging current is reduced; when the temperature is excessively low, the charging current is increased, and the charging speed is accelerated. The safety problem caused by overheating of the charging and the leaded unfavorable user experience can be avoided, and the charging efficiency can be increased.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of fast charge method and mobile terminal.
Background technology
Along with the increase of battery of mobile terminal capacity, how to improve charging rate and become the problem that people are concerned about.In recent years, quick charge technology has obtained development.So-called quick charge essence is that the charging current value by improving the constant-current charging of battery stage shortens the battery charging interval.Mobile terminal constant current charge electric current is below 500mA before, more than being constantly increased to 2000mA at present.
The continuous increase of charging current has brought the lifting of charging rate really, but has also brought potential safety hazard and the bad user of charging heating to experience.And charging current is larger, the heating that charging brings is more serious.Especially charge to mobile terminal on one side user, while playing games, see the CPU macrooperation amount operations such as video on one side, the heating problem that charging brings is soon more outstanding.
In prior art, the battery of mobile terminal generally carries NTC resistance, can monitoring battery temperature by the variation of reading NTC resistance value, once there is the extreme temperatures such as overheated, stop charging.Thereby the safety problem of avoiding charging to bring.
But, near the heating situation at the mobile phone position of the NTC of battery can only reaction cell storehouse, screen area, the region of user's handling mobile terminal etc. that user the carries out touch control operation easily temperature of heating or heat sensitive part cannot be reacted, and the bad user that therefore cannot improve above-mentioned position and cause when overheated experiences.
Summary of the invention
Main purpose of the present invention is to provide a kind of fast charge method and mobile terminal, is intended to improve charging bad user overheated and that cause and experiences.
To achieve these objectives, the present invention proposes a kind of fast charge method, comprises step:
In charging process, the temperature at least two positions of sense terminals equipment;
Whether the temperature that judges each position reaches threshold value separately;
According to judged result, take the charging strategy of presetting.Described charging strategy is set in advance according to the temperature variations of different parts.
Preferably, the temperature at least two positions of described sense terminals equipment comprises: the temperature at battery, screen and three positions of people's hand gripping area of sense terminals equipment.
Preferably, described threshold value comprises max-thresholds, describedly takes the charging strategy of presetting to comprise according to judged result:
If the temperature at least one position reaches max-thresholds, the position that reaches max-thresholds according to temperature is or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting.
Preferably, described threshold value also comprises minimum threshold, describedly takes the charging strategy of presetting also to comprise according to judged result:
If the temperature at least one position reaches minimum threshold, the position that reaches minimum threshold according to temperature is or/and position quantity, and the amplification of taking to preset increases the charging strategy of charging current.
Preferably, before the described step of taking the charging strategy of presetting according to judged result, also comprise:
Judge current whether in the constant current charge stage;
If so, enter next step;
If not, ignore temperature judged result.
The present invention proposes a kind of mobile terminal simultaneously, comprises temperature detecting module, charge control module and charging circuit, wherein:
Temperature detecting module, for detection of the temperature at least two positions of mobile terminal, and judges whether the temperature at each position reaches threshold value separately;
Charge control module, for according to judged result, takes the charging strategy of presetting;
Charging circuit, for carrying out described charging strategy.
Preferably, described temperature detecting module is used for: the temperature that detects battery, screen and three positions of people's hand gripping area of mobile terminal.
Preferably, described threshold value comprises max-thresholds, described charge control module is used for: if the temperature at least one position reaches max-thresholds, the position that reaches max-thresholds according to temperature is or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting.
Preferably, described threshold value also comprises minimum threshold, described charge control module is used for: if the temperature at least one position reaches minimum threshold, the position that reaches minimum threshold according to temperature is or/and position quantity, and the amplification of taking to preset increases the charging strategy of charging current.
Preferably, described charge control module also for: judge current whether in the constant current charge stage; If so, according to temperature judged result, take the charging strategy of presetting; If not, ignore temperature judged result.
A kind of fast charge method provided by the present invention, by the temperature at each position of sense terminals equipment, then the temperature variations at comprehensive each position, take the charging strategy of presetting.In the time of excess Temperature, carry out overtemperature protection, stop charging or reduce charging current; In the time that temperature is too low, increase charging current, accelerate charging rate.Both avoid the bad user who charges the overheated safety problem causing and cause to experience, improved again charge efficiency.
Accompanying drawing explanation
Fig. 1 is the flow chart of fast charge method the first embodiment of the present invention;
Fig. 2 is the flow chart of fast charge method the second embodiment of the present invention;
Fig. 3 is the structured flowchart of mobile terminal one embodiment of the present invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fast charge method of the present invention is applicable to various terminal equipments, is particularly useful for the mobile terminal such as mobile phone, panel computer.
Referring to Fig. 1, fast charge method the first embodiment of the present invention is proposed, said method comprising the steps of:
Step S101: in charging process, the temperature at least two positions of sense terminals equipment
In this step S101, utilize multiple temperature sensors variations in temperature data at the multiple positions of sense terminals equipment respectively.For example, battery, the people's hand gripping area of positive screen, the back side or side etc. that can distinguish sense terminals equipment be the temperature of heating or heat sensitive part easily.Temperature sensor can utilize mainboard (as AP mainboard), the built-in ready-made temperature sensor of multi-chip module (as PM chip assembly), to reduce costs.
Step S102: whether the temperature that judges each position reaches threshold value separately
Threshold value is according to experiment or empirical value preset in advance, and the threshold value at each position can be identical, also can be set to different values according to actual conditions; The threshold value at each position can arrange one, also can arrange two or more.Terminal equipment detects after the temperature at each position, judges respectively whether the temperature at each position reaches threshold value.
Step S103: according to judged result, take the charging strategy of presetting
In certain embodiments, this threshold value is max-thresholds, and terminal equipment, according to the temperature at each position detecting, judges respectively whether the temperature at each position is more than or equal to max-thresholds.If there is the temperature at least one position to reach max-thresholds, the position that reaches max-thresholds according to temperature is or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting; If the temperature without any a position reaches max-thresholds, will not respond.Wherein, the range of decrease that reduces charging current is according to experiment or empirical value preset in advance.
For example, terminal equipment detects that the temperature of battery is more than or equal to max-thresholds, stops immediately charging, to avoid continuing the safety problem that charging may bring.Terminal equipment detects that the temperature of screen is more than or equal to max-thresholds, reduces charging current with the range of decrease preset, affect user's experience to prevent that screen is overheated; If terminal equipment the temperature of screen and people's hand gripping area detected and be all more than or equal to max-thresholds, reduce charging current with the larger range of decrease of presetting, affect user's experience and bring potential safety hazard to prevent that terminal equipment is overheated.
In a preferred embodiment, this threshold value, except comprising max-thresholds, also comprises a minimum threshold.Terminal equipment, according to the temperature at each position detecting, also judges respectively whether the temperature at each position is less than or equal to minimum threshold.If the temperature at least one position reaches minimum threshold, the position that reaches minimum threshold according to temperature is or/and position quantity, and the amplification of taking to preset increases the charging strategy of charging current.If be more than or equal to max-thresholds and be less than or equal to minimum threshold without any the temperature at a position, will not respond.Wherein, the amplification that increases charging current is according to experiment or empirical value preset in advance.
For example, terminal equipment detects that the temperature of screen is less than or equal to minimum threshold, increases charging current with the amplification of presetting, to accelerate charging rate; If terminal equipment detects the temperature of screen and people's hand gripping area and is all less than or equal to max-thresholds, increase charging current with the larger amplification of presetting, to improve charge efficiency.
Thereby, by the temperature at each position of sense terminals equipment, then the temperature variations at comprehensive each position, the charging strategy of presetting taked.In the time of excess Temperature, carry out overtemperature protection, stop charging or reduce charging current; In the time that temperature is too low, increase charging current, accelerate charging rate.Both the bad user who had avoided the overheated safety problem causing and cause experiences, and has improved again charge efficiency.
Referring to Fig. 2, fast charge method the second embodiment of the present invention is proposed, said method comprising the steps of:
Step S201: in charging process, the temperature at least two positions of sense terminals equipment
Step S202: whether the temperature that judges each position reaches threshold value separately
Step S203: judge current whether in the constant current charge stage
Quick charge generally includes constant current charge, constant voltage charge and trickle charge three phases.Wherein, the constant current charge stage is called again the quick charge stage, now charging current maximum; The constant voltage charge stage is called again supplies charging stage or charging stage at a slow speed, and now charging current is progressively less; The trickle charge stage charges with less charging current, until complete charge after meeting some requirements.Whether terminal equipment judges current in the constant current charge stage, if so, enters step S204; If not, enter step S205.
Step S204: according to temperature judged result, take the charging strategy of presetting
This step S204 is identical with the step S103 in the first embodiment, does not repeat them here.
Step S205: ignore temperature judged result, will not respond
If current not in the constant current charge stage, but in constant voltage charge stage or trickle charge stage, because the electric current in these two stages is less, and there is the trend reducing gradually, even if therefore the current temperature of terminal equipment is higher, can not produce safety problem yet, therefore ignore temperature judged result, will not respond, avoid upsetting normal charging process and reduce charge efficiency.
Referring to Fig. 3, mobile terminal one embodiment of the present invention is proposed, described mobile terminal comprises the temperature detecting module 110, charge control module 120 and the charging circuit 130 that connect successively.
Temperature detecting module 110: for detect the temperature at least two positions of mobile terminal in charging process, and judge whether the temperature at each position reaches threshold value separately.
Threshold value is according to experiment or empirical value preset in advance, and the threshold value at each position can be identical, also can be set to different values according to actual conditions.Temperature detecting module 110 detects after the temperature at each position, judges respectively whether the temperature at each position reaches threshold value.
In certain embodiments, this threshold value is max-thresholds, and temperature detecting module 110, according to the temperature at each position detecting, judges respectively whether the temperature at each position reaches max-thresholds.If have the temperature at least one position to be more than or equal to max-thresholds, send judged result to charge control module 120; If the temperature without any a position reaches max-thresholds, will not respond.
In a preferred embodiment, this threshold value, except comprising max-thresholds, also comprises a minimum threshold.Temperature detecting module 110, according to the temperature at each position detecting, also judges respectively whether the temperature at each position reaches minimum threshold.If have the temperature at least one position to reach minimum threshold, also send judged result to charge control module 120; If be more than or equal to max-thresholds and be less than or equal to minimum threshold without any the temperature at a position, will not respond.
Charge control module 120: for according to judged result, take the charging strategy of presetting.
If the temperature at least one position reaches max-thresholds, 120 positions that reach max-thresholds according to temperature in judged result of charge control module are or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting, and this charging strategy is sent to charging circuit 130.Wherein, the range of decrease that reduces charging current is according to experiment or empirical value preset in advance.
For example, if detect that the temperature of battery is more than or equal to max-thresholds, 120 of charge control module take to stop immediately the charging strategy of charging, to avoid continuing the safety problem that charging may bring.If detect that the temperature of screen is more than or equal to max-thresholds, the range of decrease that 120 of charge control module are taked to preset reduces the charging strategy of charging current, affect user's experience to prevent that screen is overheated; If detect that the temperature of screen and people's hand gripping area is all more than or equal to max-thresholds, the larger range of decrease that 120 of charge control module are taked to preset reduces the charging strategy of charging current, affect user's experience and brings potential safety hazard to prevent that mobile terminal is overheated.
If the temperature at least one position reaches minimum threshold, 120 positions that reach minimum threshold according to temperature in judged result of charge control module are or/and position quantity, the amplification of taking to preset increases the charging strategy of charging current, and this charging strategy is sent to charging circuit.Wherein, the amplification that increases charging current is according to experiment or empirical value preset in advance.
For example, if detect that the temperature of screen is less than or equal to minimum threshold, the amplification that 120 of charge control module are taked to preset increases the charging strategy of charging current, to accelerate charging rate; If detect, the temperature of screen and people's hand gripping area is all less than or equal to max-thresholds, and the larger amplification that 120 of charge control module are taked to preset increases charging current, to improve charge efficiency.
In certain embodiments, whether charge control module 120, before the charging strategy of taking to preset according to temperature judged result, also judges current in the constant current charge stage.If current in the constant current charge stage, according to temperature judged result, take the charging strategy of presetting; If current in constant voltage charge stage or trickle charge stage, because the electric current in these two stages is less, and there is the trend reducing gradually, even if therefore the current temperature of mobile terminal is higher, can not produce safety problem yet, therefore ignore temperature judged result, will not respond, avoid upsetting normal charging process and reduce charge efficiency.
Charging circuit 130: for carrying out charging strategy, stop charging, reduce charging current or increase charging current with the amplification of presetting with the range of decrease of presetting according to charging strategy.
Accordingly, mobile terminal of the present invention, in charging process, by detecting the temperature at each position, then the temperature variations at comprehensive each position, take the charging strategy of presetting.In the time of excess Temperature, carry out overtemperature protection, stop charging or reduce charging current; In the time that temperature is too low, increase charging current, accelerate charging rate.Both the bad user who had avoided the overheated safety problem causing and cause experiences, and has improved again charge efficiency.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is can control relevant hardware by program to complete, described program can be being stored in a computer read/write memory medium, and described storage medium can be ROM/RAM, disk, CD etc.
With reference to the accompanying drawings of the preferred embodiments of the present invention, not thereby limit to interest field of the present invention above.Those skilled in the art do not depart from the scope and spirit of the present invention, and can have multiple flexible program to realize the present invention, such as can be used for another embodiment and obtain another embodiment as the feature of an embodiment.Allly using any modification of doing within technical conceive of the present invention, be equal to and replace and improve, all should be within interest field of the present invention.
Claims (10)
1. a fast charge method, is characterized in that, comprises step:
In charging process, the temperature at least two positions of sense terminals equipment;
Whether the temperature that judges each position reaches threshold value separately;
According to judged result, take the charging strategy of presetting.
2. fast charge method according to claim 1, is characterized in that, the temperature at least two positions of described sense terminals equipment comprises: the temperature at the screen of sense terminals equipment and two positions of people's hand gripping area.
3. fast charge method according to claim 1, is characterized in that, described threshold value comprises max-thresholds, describedly takes the charging strategy of presetting to comprise according to judged result:
If the temperature at least one position reaches max-thresholds, the position that reaches max-thresholds according to temperature is or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting.
4. fast charge method according to claim 3, is characterized in that, described threshold value also comprises minimum threshold, describedly takes the charging strategy of presetting also to comprise according to judged result:
If the temperature at least one position reaches minimum threshold, the position that reaches minimum threshold according to temperature is or/and position quantity, and the amplification of taking to preset increases the charging strategy of charging current.
5. according to the fast charge method described in claim 1-4 any one, it is characterized in that, before the described step of taking the charging strategy of presetting according to judged result, also comprise:
Judge current whether in the constant current charge stage;
If so, enter next step;
If not, ignore temperature judged result.
6. a mobile terminal, is characterized in that, comprises temperature detecting module, charge control module and charging circuit, wherein:
Temperature detecting module, for detection of the temperature at least two positions of mobile terminal, and judges whether the temperature at each position reaches threshold value separately;
Charge control module, for according to judged result, takes the charging strategy of presetting;
Charging circuit, for carrying out described charging strategy.
7. mobile terminal according to claim 6, is characterized in that, described temperature detecting module is used for: detect the screen of mobile terminal and the temperature at two positions of people's hand gripping area.
8. mobile terminal according to claim 6, it is characterized in that, described threshold value comprises max-thresholds, described charge control module is used for: if the temperature at least one position reaches max-thresholds, the position that reaches max-thresholds according to temperature is or/and position quantity, the charging strategy of taking to stop charging or reducing charging current with the range of decrease of presetting.
9. mobile terminal according to claim 8, it is characterized in that, described threshold value also comprises minimum threshold, described charge control module is used for: if the temperature at least one position reaches minimum threshold, the position that reaches minimum threshold according to temperature is or/and position quantity, and the amplification of taking to preset increases the charging strategy of charging current.
10. according to arbitrarily described mobile terminal of claim 6-9, it is characterized in that, described charge control module also for: judge current whether in the constant current charge stage; If so, according to temperature judged result, take the charging strategy of presetting; If not, ignore temperature judged result.
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