CN104009262A - Battery protection method and electronic device applying the same - Google Patents
Battery protection method and electronic device applying the same Download PDFInfo
- Publication number
- CN104009262A CN104009262A CN201310060607.4A CN201310060607A CN104009262A CN 104009262 A CN104009262 A CN 104009262A CN 201310060607 A CN201310060607 A CN 201310060607A CN 104009262 A CN104009262 A CN 104009262A
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- CN
- China
- Prior art keywords
- battery
- numerical value
- controller
- discharges
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
The invention relates to a battery protection method and an electronic device applying the same. The method includes: reading the temperature value of a battery and a battery capacity value; judging whether the temperature value and the battery capacity value exceed preset critical values; if the temperature value and the battery capacity value exceed the preset critical values, judging the on-off state of a system; if the system is powered on, limiting electric power supply from an external power source to the system, and letting the battery supply electric power to the system so as to discharge electricity of the battery; and if the system is powered off, starting a load circuit of the system, and letting the battery supply electric power to the load circuit so as to discharge the electricity of the battery. The electronic device comprises the battery, the system and a controller. Thus, no matter the system of the electronic device is powered on or powered off, the possible battery leakage or expansion phenomenon in a high temperature environment can all be avoided, thereby solving the problems of the prior art.
Description
[technical field]
The invention relates to a kind of battery protection technology, and relate to especially a kind of under hot environment battery protecting method with application this battery protecting method electronic installation.
[background technology]
, progress that can carried type electronic product science and technology light and handy along with having, the every high-performance assembly in product is mostly also taking light, thin, short, little as main flow trend.
With the battery in electronic product, the battery lightweight, volume is little, carried charge is high just seems important especially.In addition, battery except lightweight, volume little with reserve of electricity height, manufacturer is also suitable emphasis for the associated batteries protective circuit that affects battery and user's safety.For the protective circuit of battery, most of manufacturers are the charge and discharges with protection battery to the battery monitoring in using.For example short circuit current (short current), excess electric current (excess current), overcharge monitoring or cross and put the protective circuit of monitoring.Although the protective circuit of these batteries has monitoring and the function of protecting for the battery in operation, but cannot protect the battery in non-use.
Due to the place at high temperature or at megathermal climate airtight counter in transit, the battery temperature of electronic product rises.Because battery accelerates because of chemical change speed, the decomposition of electrolyte and produce gas, makes cell internal pressure rise and expand.Although battery is not at use state, due to the impact of high ambient temperature degree, battery has leakage or the phenomenon of expansion, and may cause danger on fire or that break.
Therefore, at high temperature the battery that causes non-working condition is reduced to its battery, and may cause user's danger.
[summary of the invention]
In view of this, the present invention proposes a kind of battery protecting method and the electronic installation of applying this battery protecting method, the problem of addressing so as to solving prior art.
The present invention proposes a kind of battery protecting method, and for battery, and battery is arranged in system.The method comprises the following steps: the Temperature numerical and the battery capacity numerical value that read battery; Judge whether Temperature numerical and battery capacity numerical value exceed preset critical; If when Temperature numerical and battery capacity numerical value exceed preset critical, judge the on-off state of system; If when system is open state, restriction external power source supply electric power is to this system, and by battery supplied electric power to system so as to the described battery that discharges; If when system is off-mode, start the load circuit of system, and with battery supply load circuit electric power so as to the described battery that discharges.
The present invention separately proposes a kind of battery protecting method, and for battery, and battery is arranged in system.The method comprises the following steps: the Temperature numerical and the battery capacity numerical value that read battery; Judge whether Temperature numerical and battery capacity numerical value exceed preset critical; If when Temperature numerical and battery capacity numerical value exceed preset critical, judge the on-off state of system; According to the on-off state of system, determine the electric discharge kenel of battery; According to the electric discharge kenel described battery that discharges.
A kind of electronic installation being applied in battery protecting method of the another proposition of the present invention, it comprises battery, system and controller.Described battery provides Temperature numerical and battery capacity numerical value.Described system couples described battery.Described controller couples described battery and described system.In the time that Temperature numerical and battery capacity numerical value exceed preset critical, controller judges the on-off state of system, and according to the on-off state of system, determines the electric discharge kenel of battery, and according to the electric discharge kenel described battery that discharges.
Compared to prior art, in the present invention, because electronic installation is under the shutdown or open state of system, whether controller can exceed preset critical according to Temperature numerical and battery capacity numerical value is protected battery.Therefore, no matter electronic installation is at off-mode or the open state of system, can avoid under hot environment the battery may leakage or the phenomenon of expansion, thereby solved the problem that prior art is addressed.
[brief description of the drawings]
Fig. 1 illustrates the calcspar for the electronic installation of the present invention's application battery protecting method.
Fig. 2 illustrates the flow chart into one embodiment of the invention battery protecting method.
Fig. 3 illustrates the flow chart into another embodiment of the present invention battery protecting method.
[embodiment]
Fig. 1 illustrates the calcspar for the electronic installation of the present invention's application battery protecting method.Fig. 2 illustrates the flow chart into one embodiment of the invention battery protecting method.Please merge and see figures.1.and.2.Electronic installation 10 comprises battery 110, system 120 and controller 130.Controller 130 is coupled to system 120 and battery 110.
In the present embodiment, controller 130 can be keyboard controller (keyboard controller, KBC) or embed controller (embedded controller, EC), but the present invention is as limit, discusses with actual design or application demand.Battery 110 comprises power management chip 112 and battery stamen 114.Power management chip 112 can be used for detecting temperature and the battery capacity of battery stamen 114, so as to providing Temperature numerical X_TEMP and battery capacity numerical value X_CAPA to controller 130.
Specifically, comprise following each step for the guard method of battery 110.
First,, as shown in step S201, can be read by controller 130 Temperature numerical X_TEMP and the battery capacity numerical value X_CAPA of battery 110.
Then,, as shown in step S203, can judge whether Temperature numerical X_TEMP and battery capacity numerical value X_CAPA exceed preset critical by controller 130.For example, when Temperature numerical X_TEMP exceed 70 DEG C and battery capacity numerical value X_CAPA exceed rated cell capacity 80% time, controller 130 can be judged as and exceed preset critical.The numerical value that note that preset critical is not limited with above-described embodiment, with actual design or application demand and discuss.
If when Temperature numerical X_TEMP and battery capacity numerical value X_CAPA exceed preset critical, enter step S205.At step S205, can be by the on-off state of controller 130 further judgement systems 120.If system 120 during for open state, enters step S207, if system 120 during for off-mode, enters step S211.
As shown in step S207, in the time that system 120 is open state, can further determine to be the first electric discharge kenel by controller 130.Then enter step S209, according to the first electric discharge kenel described battery 110 that discharges.
As shown in step S211, in the time that system 120 is off-mode, can further determine to be the second electric discharge kenel by controller 130.Then enter step S213, according to the second electric discharge kenel described battery 110 that discharges.The first, the second electric discharge kenel design with practical application.
On the other hand, in step S209 or step S213, when controller 130 discharges described battery 110 according to corresponding electric discharge kenel, system 120 does not produce any meeting allows user learn the information that battery 110 is discharging.For example, in step S213, system is off-mode, by battery 110 being powered to load circuit (load circuit for example can be DC-DC voltage converter, internal storage location or USB circuit), and in the process of this electric discharge, do not open screen, therefore the process of this electric discharge can not see through any information of screen display and allow user learn that battery 110 is discharging.For example, in step S209, system 120 is open state, although battery 110 is started to power supply to system 120 or load circuit 122, still shows that at screen the power source of this system 120 is AC power supplies, and does not show that real electric discharge source is battery 110.
It is worth mentioning that at this, because electronic installation 10 is under the shutdown or open state of system 120, whether controller 130 can exceed preset critical according to Temperature numerical X_TEMP and battery capacity numerical value X_CAPA is protected battery.Therefore, no matter electronic installation 10 is at off-mode or the open state of system 120, can avoid the battery 110 under hot environment may leakage or the phenomenons of expansion.
The content disclosing based on above-described embodiment, can derive another embodiment.Fig. 3 illustrates the flow chart into another embodiment of the present invention battery protecting method.Please merge with reference to Fig. 1 and Fig. 3.
First,, as shown in step S301, can be read by controller 130 Temperature numerical X_TEMP and the battery capacity numerical value X_CAPA of battery 110.
Then,, as shown in step S303, can judge whether Temperature numerical X_TEMP and battery capacity numerical value X_CAPA exceed preset critical by controller 130.For example, under the environment of high temperature, Temperature numerical X_TEMP can exceed 70 DEG C.When Temperature numerical X_TEMP exceed 70 DEG C and battery capacity numerical value X_CAPA exceed rated cell capacity 80% time, controller 130 can be judged as and exceed preset critical.The numerical value that note that preset critical is not limited with above-described embodiment, with actual design or application demand and discuss.
If when Temperature numerical X_TEMP and battery capacity numerical value X_CAPA exceed preset critical, enter step S305.At step S305, can be by the on-off state of controller 130 further judgement systems 120.If system 120 enters step S307 during for open state, if system 120 enters step S311 during for off-mode.
As shown in step S307, in the time that system 120 is open state, can limits external power source 140 by controller 130 and supply electric power to system 120.The conversion electric power of for example forbidding AC-DC inputs to system 120.Then enter step S309, by battery 110 supply electric power to system 120 with the described battery 110 that discharges.Thus, at high temperature battery 110 is discharged, contribute to the speed of the chemical change that reduces battery 110 and slow down speed of expansion, and can avoid cell damage.
On the other hand as shown in step S311, in the time that system 120 is off-mode, can be by the load circuit 122 of controller 130 startup systems 120.For example, load circuit 122 can be DC-DC voltage converter (DC-DC voltage converter), internal storage location (memory cell) or USB (universal serial bus, USB) circuit, but the present invention is not as limit.Then enter step S313, with the electric power of described battery 110 supply load circuit 122, so as to the described battery 110 that discharges, thereby can avoid leakage, expansion or the not infringement of reversibility such as on fire of battery 110 under hot environment.
In addition,, in step S309 or step S313, system 120 does not produce any meeting allows user learn the information that battery 110 is discharging.For example, in step S313, system is off-mode, by battery 110 being powered to load circuit (load circuit for example can be DC-DC voltage converter, internal storage location or USB circuit), and in the process of this electric discharge, do not open screen, therefore the process of this electric discharge can not see through any information of screen display and allow user learn that battery 110 is discharging.For example, in step S309, system 120 is open state, although battery 110 is started to power supply to system 120 or load circuit 122, still shows that at screen the power source of this system 120 is AC power supplies, and does not show that real electric discharge source is battery 110.
Even, when system 120 is open state and the described battery 110(step S309 that discharges) time, system 120 also can show the high temperature alert news that exceedes the system specification to user, so as to remind user at high temperature operating electronic devices 10 be dangerous, or the self character of battery 110 is harmful to.
In sum, because electronic installation is under the shutdown or open state of system, whether controller can exceed preset critical according to Temperature numerical and battery capacity numerical value is protected battery, especially for the battery in non-use.Therefore, no matter electronic installation is at off-mode or the open state of system, can avoid under hot environment battery may leakage, expansion or the phenomenon such as on fire, thereby increase the fail safe of system or user's fail safe.
Claims (20)
1. a battery protecting method, for a battery, this battery is arranged in a system, it is characterized in that, and the method comprises:
Read a Temperature numerical and a battery capacity numerical value of this battery;
Judge whether this Temperature numerical and this battery capacity numerical value exceed a preset critical;
If when this Temperature numerical and this battery capacity numerical value exceed this preset critical, judge the on-off state of this system;
If when this system is open state, comprising: restriction one external power source supply electric power is to this system; Give this system with this battery that discharges by this battery supplied electric power;
If when this system is off-mode, comprising: a load circuit that starts this system; Supply with this load circuit electric power with this battery that discharges with this battery.
2. battery protecting method as claimed in claim 1, is characterized in that, in the time carrying out this battery of electric discharge, also determines whether to stop according to this Temperature numerical and this battery capacity numerical value this battery that discharges.
3. battery protecting method as claimed in claim 1, is characterized in that, this battery comprises a battery stamen and a power management chip, and this power management chip is detected temperature and the electric weight of this battery stamen, so that this Temperature numerical and this battery capacity numerical value to be provided.
4. battery protecting method as claimed in claim 1, is characterized in that, when this Temperature numerical exceed 70 DEG C and this battery capacity numerical value exceed rated cell capacity 80% time, be judged as and exceeded this preset critical.
5. battery protecting method as claimed in claim 1, is characterized in that, in the time of this battery of electric discharge, this system does not produce any meeting allows user learn the information that this battery is discharging.
6. battery protecting method as claimed in claim 1, is characterized in that, when this system is open state and while discharging this battery, this system shows the high temperature alert news that exceedes the system specification to user.
7. battery protecting method as claimed in claim 1, is characterized in that, this load circuit is DC-DC voltage converter, internal storage location or USB circuit.
8. a battery protecting method, for a battery, this battery is arranged in a system, it is characterized in that, and the method comprises:
Read a Temperature numerical and a battery capacity numerical value of this battery;
Judge whether this Temperature numerical and this battery capacity numerical value exceed a preset critical;
If when this Temperature numerical and this battery capacity numerical value exceed this preset critical, judge the on-off state of this system;
According to the on-off state of this system, determine an electric discharge kenel of this battery;
According to this electric discharge kenel this battery that discharges.
9. battery protecting method as claimed in claim 8, is characterized in that, after the step of this battery that discharges according to this electric discharge kenel, also comprises:
According to this Temperature numerical and this battery capacity numerical value, determine whether to stop this battery that discharges.
10. be applied to the electronic installation in battery protecting method described in claim 1 or 8, it is characterized in that, this device comprises:
One battery, provides a Temperature numerical and a battery capacity numerical value;
One system, couples this battery;
One controller, couple this battery and this system, in the time that this Temperature numerical and this battery capacity numerical value exceed this preset critical, this controller judges the on-off state of this system, and according to the on-off state of this system, determine an electric discharge kenel of this battery, and according to this electric discharge kenel this battery that discharges.
11. electronic installations as claimed in claim 10, it is characterized in that, this system comprises a load circuit, and this load circuit couple this battery and this controller.
12. electronic installations as claimed in claim 10, is characterized in that, in the time that this controller judges that this system is open state, this controller limits an external power source and is supplied to this system, and give this system with this battery that discharges by this battery supplied electric power.
13. electronic installations as claimed in claim 11, is characterized in that, in the time that this controller judges that this system is off-mode, the electric power that this controller starts this load circuit and supplies with this load circuit with this battery is with this battery that discharges.
14. electronic installations as claimed in claim 10, is characterized in that, in the time that this controller discharges this battery according to this electric discharge kenel, also determine whether to stop according to this Temperature numerical and this battery capacity numerical value this battery that discharges.
15. electronic installations as claimed in claim 10, is characterized in that, this controller is keyboard controller.
16. electronic installations as claimed in claim 10, is characterized in that, this battery comprises a battery stamen and a power management chip, and this power management chip is detected temperature and the electric weight of this battery stamen, so that this Temperature numerical and this battery capacity numerical value to be provided.
17. electronic installations as claimed in claim 10, is characterized in that, when this Temperature numerical exceed 70 DEG C and this battery capacity numerical value exceed rated cell capacity 80% time, this controller is judged as and exceedes this preset critical.
18. electronic installations as claimed in claim 10, is characterized in that, in the time that this controller discharges this battery according to this electric discharge kenel, this system does not produce any meeting allows user learn the information that this battery is discharging.
19. electronic installations as claimed in claim 10, is characterized in that, in the time that this system is open state and this battery discharge, this system shows the high temperature alert news that exceedes the system specification to user.
20. electronic installations as claimed in claim 11, is characterized in that, this load circuit is DC-DC voltage converter, internal storage location or USB circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060607.4A CN104009262B (en) | 2013-02-27 | 2013-02-27 | Battery protecting method and the electronic installation applying this battery protecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060607.4A CN104009262B (en) | 2013-02-27 | 2013-02-27 | Battery protecting method and the electronic installation applying this battery protecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104009262A true CN104009262A (en) | 2014-08-27 |
| CN104009262B CN104009262B (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310060607.4A Active CN104009262B (en) | 2013-02-27 | 2013-02-27 | Battery protecting method and the electronic installation applying this battery protecting method |
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| Country | Link |
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| CN (1) | CN104009262B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797058A (en) * | 2014-09-02 | 2017-05-31 | 罗伯特·博世有限公司 | Device for improving security when using battery system |
| CN109216815A (en) * | 2017-06-29 | 2019-01-15 | 北京小米移动软件有限公司 | Battery, electronic equipment, corrosion method for early warning and device, readable storage medium storing program for executing |
| CN109935920A (en) * | 2017-12-16 | 2019-06-25 | 神讯电脑(昆山)有限公司 | The discharge control method and battery circuit framework of battery |
| WO2022135216A1 (en) * | 2020-12-22 | 2022-06-30 | 华为技术有限公司 | Electronic device and control method therefor |
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| US20050007068A1 (en) * | 2002-11-22 | 2005-01-13 | Johnson Todd W. | Method and system for battery protection |
| CN101512826A (en) * | 2006-09-11 | 2009-08-19 | 株式会社Lg化学 | Control method of battery-system for improving safety |
| CN201540936U (en) * | 2009-10-19 | 2010-08-04 | 陈瑞 | Battery of mobile data terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797058A (en) * | 2014-09-02 | 2017-05-31 | 罗伯特·博世有限公司 | Device for improving security when using battery system |
| CN106797058B (en) * | 2014-09-02 | 2020-04-07 | 罗伯特·博世有限公司 | Device for increasing safety when using a battery system |
| CN109216815A (en) * | 2017-06-29 | 2019-01-15 | 北京小米移动软件有限公司 | Battery, electronic equipment, corrosion method for early warning and device, readable storage medium storing program for executing |
| CN109935920A (en) * | 2017-12-16 | 2019-06-25 | 神讯电脑(昆山)有限公司 | The discharge control method and battery circuit framework of battery |
| WO2022135216A1 (en) * | 2020-12-22 | 2022-06-30 | 华为技术有限公司 | Electronic device and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104009262B (en) | 2016-11-23 |
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