CN1337758A - Battery recharging device and method - Google Patents
Battery recharging device and method Download PDFInfo
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- CN1337758A CN1337758A CN01141834A CN01141834A CN1337758A CN 1337758 A CN1337758 A CN 1337758A CN 01141834 A CN01141834 A CN 01141834A CN 01141834 A CN01141834 A CN 01141834A CN 1337758 A CN1337758 A CN 1337758A
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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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Abstract
The present invention provides a cell charging device, including a receiving element, a comparison element and a switching element, in which the receiving element can continuously receive a current temperature value of the cell at regular fixed intervals, and the comparison element can be used for comparing the current temperature value with the last temperature value measured in preceding time, and the switching element can be used for changing charging mode of cell charging device when the current temperature value is higher than the last temperature value, and is reached to a preset value. Besides, said invention also provides its charging method.
Description
Technical field
The present invention relates to a kind of battery charger and method.
Background technology
Along with the variation and the universalness of portable electronic devices, the power supply that is applied to portable electronic devices develops into based on rechargeable batteries such as nickel-cadmium cell, lithium batteries.And corresponding to above-mentioned rechargeable battery, battery charger also is one of indispensable peripheral equipment of portable electronic devices.
When battery charge, battery charger can judge usually whether battery is the full charge state, and when battery was the full charge state, the judgement battery finished for charging and stops charging, to avoid the overcharge of battery.Because the overcharge of battery can cause the waste of electric power, and can cause again that battery is overheated and may cause the damage of battery or even portable electronic devices therefore how avoiding the overcharge of battery is a considerable problem.
Please refer to Fig. 4, when battery when charging, temperature can rise a little at the beginning, it is constant to keep a period of time then.When near full charge, temperature can rise once more.In known technology, a kind of judge battery whether be the mode of full charge state for measuring the temperature variation that battery produces in charging process, and judge according to the situation of variations in temperature whether battery is the full charge state.Promptly whether arrive a predetermined value and judge whether battery has arrived full charge with the amplitude that measures unit interval temperature rising.
Yet the rate of temperature change of its battery of size of different charging currents is also different.When using big electric current quick charge, the rate of temperature change of battery can be bigger, and when using little electric current to charge at a slow speed, the rate of temperature change of battery is understood less.As mentioned above, if battery charger is to utilize the temperature variation of measuring battery whether to arrive a predetermined value, judge whether battery reaches the full charge state, it is just correctly judged whether to arrive full charge in response to the just necessary predetermined value of setting different sizes of different charging current sizes.
Allly be familiar with this skill person and all know, the battery of low capacity uses large current charge to damage, but be effectively to save and control the charging interval, therefore, in response to the battery of different capabilities, different charging currents will be adopted, in a charging procedure so the judgement preset value that sets is also different.At this moment, if when using the battery of the big volume of passenger traffic of low current charge, because of the temperature variation of battery can be less, can't reach the judgement preset value that charging procedure sets, so may have when battery reaches the full charge state, the variations in temperature that can't measure battery reaches judges that battery is that the situation of full charge state produces, and the result still can cause the overcharge of battery.That is to say that aforesaid technology must be arranged in pairs or groups at the battery of different capabilities and be used the fixing charge power supply transducer and the disappearance of charging procedure.Moreover, for being in for today that Information technology advances by leaps and bounds, portable electronic devices can be said so with rapid changepl. never-ending changes and improvements, the dealer weeds out the old and bring forth the new invariably and has multi-purpose various product, but many more its power consumption of product device function also may be healed greatly, that is it is bigger to be that required electric power is supported, but because the disappearance of aforementioned known charge judgment technology, makes the consumer also must purchase new charge power supply transducer again buying new machine, not only being a burden, also is a kind of waste of resource.
From the above, the battery charger and the method that how can provide accurate judgement rechargeable battery to reach the full charge state, and make the different battery of capacity can use same charge power supply transducer and charging procedure, be a current big problem in fact.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of at the problems referred to above can judge accurately that rechargeable battery reaches the battery charger and the method for full charge state, and the different battery of solution capacity can't use the problem of same charge power supply transducer and charging procedure.
Above-mentioned technical problem of the present invention is realized by following technical scheme.
A kind of battery charger, it charges to a battery, it is characterized in that comprising:
One receiving element, its temperature that receives at interval this battery according to regular time constantly measures resulting one present temperature value;
One comparing element, its when this present temperature value of each reception, this present temperature value and preceding once received a temperature value last time relatively; And
One switches element, and it changes the charge mode of this battery charger when this present temperature value is higher than this last time the number of times of temperature value arrived a predetermined value.
This battery charger except that above-mentioned essential features, in specific implementation process, also can
Replenish following technology contents:
Also comprise a memory element, it stores a parameter, when this battery charger begins to charge, the numerical value of this parameter is to be set to this predetermined value, when each time received this present temperature value, if this present temperature value is higher than this last time temperature value, the numerical value of this parameter was promptly subtracted one, when the numerical value of this parameter became zero, this switching device promptly changed the charge mode of this battery charger.
Wherein be not higher than this last time during temperature value when this present temperature value, the numerical value of this parameter promptly is set to this predetermined value.
More comprise a measuring temp element, it measures the temperature of this battery.
The present invention also provides a kind of method for charging batteries, and it charges to a battery, it is characterized in that comprising: the temperature that receives at interval this battery according to regular time measures resulting one present temperature value constantly;
When this present temperature value of each reception, this present temperature value and preceding once received a temperature value last time relatively; And
When this present temperature value is higher than this last time the number of times of temperature value arrived a predetermined value, change charge mode to this battery.
This method for charging batteries, except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
More comprise: when this battery began to be recharged, the numerical value of setting a parameter was this predetermined value; When this present temperature value is higher than this last time during temperature value, the numerical value of this parameter is subtracted one; And when the numerical value of this parameter becomes zero, judge this present temperature value be higher than this last time the number of times of temperature value arrive this predetermined value.
More comprise: when this present temperature value is not higher than this last time during temperature value, the numerical value of setting this parameter is this predetermined value.
More comprise: the temperature that measures this battery.
Battery charger of the present invention is that a battery is charged, and comprises that a receiving element, a comparing element and switch element.In the present invention, the temperature that receives at interval battery according to regular time constantly of receiving element measures resulting one present temperature value; Comparing element when each measurement, more present temperature value and preceding resulting one temperature value last time that once measures; Switching device is when present temperature value is higher than that last time the number of times of temperature value arrived a predetermined value, changes the charge mode of battery charger.
Battery charger can more comprise the memory element of a storage one parameter.When battery charger begins to charge; The numerical value of parameter is to be set at predetermined value.When receiving this present temperature value, if temperature value is higher than last time temperature value at present, then the numerical value of parameter can be subtracted one at every turn.When the numerical value of parameter became zero, switching device promptly changed the charge mode of battery charger.If each when receiving this present temperature value present temperature value be not higher than last time temperature value, the numerical value of parameter can be reset to predetermined value.
Battery charger can more comprise a measuring temp element, and it is in order to measure the temperature of battery.
The present invention also provides a kind of method for charging batteries, and it comprises that a measuring temp step, a receiving step, a comparison step, a storing step and all change step suddenly.In the present invention, the measuring temp step is the temperature that measures battery; Receiving step receives the present temperature value of battery constantly at interval according to regular time; When comparison step measured in each time, more present temperature value and preceding resulting one temperature value last time that once measures: storing step was the storage parameter, and, when battery begins to be recharged, the numerical value of parameter is predetermined value, and when present temperature value was higher than last time temperature value, the numerical value of parameter subtracted one; Switch step is when present temperature value is higher than that last time the number of times of temperature value arrived a predetermined value, changes the charge mode to battery.
Advantage of the present invention is:
As mentioned above, because according to battery charger of the present invention and method is that temperature according to battery continues to increase in during necessarily and judges whether battery reaches the full charge state, so, when the rate of temperature change that influences battery when the reduction of charging current reduces, battery charger of the present invention and method still can provide accurate and judge whether rechargeable battery reaches the full charge state, that is can make the different battery of capacity use same charge power supply transducer and charging procedure.
Hereinafter with reference to relevant drawings, battery charger and method according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Description of drawings
Fig. 1 is a circuit diagram, shows the circuit diagram according to the battery unit electric installation of preferred embodiment of the present invention.
Fig. 2 is a flow chart, shows the flow process according to the method for charging batteries of preferred embodiment of the present invention.
Fig. 3 is a flow chart, shows the flow process according to the method for charging batteries of another preferred embodiment of the present invention.
Fig. 4 is a coordinate figure, the variations in temperature situation of battery when being shown in charging.
The specific embodiment
Please refer to shown in Figure 1ly, comprise a reception according to the battery charger 1 of preferred embodiment of the present invention Element 101, a comparing element 102, a memory element 103 and switch element 104.
As shown in Figure 1, the battery charger 1 according to preferred embodiment of the present invention is and a charging circuit Cooperate, charging circuit comprises a voltage source 601, a transformer 602, a rectifier 603, an electric capacity Device 604, a controller 605, a switch 606, an A/D converter 607 and a temperature-sensing element 608. In the present embodiment, voltage source 601 is generally an AC power, so, via transformer 602 AC power is converted to suitable battery charger 1 each direct voltage source; Then, rectifier 603, Capacitor 604 and controller 605 are adjusted in direct voltage source charging voltage and the charged electrical of expection Stream, wherein, controller 605 is one or three Terminal control devices; Charging voltage and charging current are through switch 606 pairs of batteries 70 charge, and temperature-sensing element 608 is measured the temperature of batteries 70, wherein, sense Temperature element 608 can be a Temperature Quantity that comprises in the battery charger 1 of preferred embodiment of the present invention Survey element, it can be a temperature sensitive resister. Temperature sensitive resister is an analog element, and its characteristic is its resistance Anti-meeting changes along with temperature, and its impedance variation with temperature is quick and obvious, when impedance changes The time, the magnitude of voltage of temperature sensitive resister will change thereupon, therefore get final product via counter the pushing away of the magnitude of voltage of temperature sensitive resister Learn the temperature value that measures, temperature sensitive resister is known for being familiar with this skill person, so no longer explain State. Therefore, when measuring the temperature of battery 70 with temperature-sensing element 608, can be quickly and accurately Obtain the temperature of battery 70; Then, the moneys such as temperature of charging voltage, charging current and battery 70 Material is converted to numerical data via A/D converter 607, is resent to the electricity of preferred embodiment of the present invention In the pond charging device 1, with via receiving element 101, comparing element 102, memory element 103 and Switching device 104 carries out computing, comes the conducting and not conducting of gauge tap 606.
Below describe the function of each element in the present embodiment in detail.
As mentioned above, receiving element 101 is constantly according to regular time interval reception temperature-sensing element 608 Temperature to battery 70 measures resulting one present temperature value. For example, receiving element 101 is every The interval received once at present temperature value in 30 seconds, wherein, and before the numerical value that received before 30 seconds is defined as one Inferior temperature value.
When comparing element 102 receives present temperature value in each receiving element 101, relatively more present temperature Value and frontly once measure resulting last time temperature value.
For example, suppose that predetermined value is 15, the present temperature value that receiving element 101 receives for the first time is 29.1 Degree, the present temperature value that receives for the second time when receiving element 101 are 29.3 when spending, because of present temperature Value is greater than the temperature value of front primary sample, becomes 14 so parameter X subtracts 1 by default 15; Then, The present temperature value that receives for the third time when receiving element 101 is 29.6 when spending, and parameter X is again by 14 Become 13; But, if the present temperature value that receives when receiving element 101 the 4th time is 29.6 when spending, Not soaring because of temperature, it is preset value 15 that parameter X replys by 13.
In addition, above-mentioned receiving element 101, comparing element 102, memory element 103 and switch Element 104 can be the software and hardware module that cooperates with an electronic equipment. Electronic equipment be comprise an interface, One memory and a microprocessor. In the present embodiment, receiving element 101 is Jie of electronic equipment Face, it receives the present temperature value that temperature-sensing element 608 sends: comparing element 102 is deposited for being stored in One of reservoir has the software module of calculation function, and in microprocessor, carry out present temperature value with before The computing of the comparison of inferior temperature value; Memory element 103 is memories, its store all software module, At present temperature value, last time temperature value and parameter X; Switching device 104 is to be stored in one of memory Software module with arbitration functions and signal output function, its in microprocessor computing to judge order Front temperature value is higher than last time whether the number of times of temperature value arrives predetermined value, or whether the numerical value of parameter X Be zero, when the result of its judgement when being, it exports a charge mode conversion signal with control and change The charge mode of battery charger 1.
For content of the present invention is more readily understood, below will lift an example, with explanation according to the present invention The flow process of the method for charging batteries of good embodiment.
Please refer to shown in Figure 2, in the method for charging batteries 2 according to preferred embodiment of the present invention, step 201 It is the temperature of fixing blanking time of 30 seconds and take a sample the measured battery 70 of temperature-sensing element 608.
Then, step 202 is that the temperature of battery 70 of comparison two continuous samplings is to obtain two sample points Temperature difference, and by step 203 comparative result (temperature difference) is recorded in the memory element 103 again.
Step 205 is to send the full charge status signal to switch 606 or controller 605, so that control The not conducting of switch 606 stops rechargeable battery 70, or switch controller 605 is to change battery The charge mode of charging device 1 for example, is changed into the low current charge pattern by general charge mode, To keep battery 70 at the full charge state.
In addition, please refer to shown in Figure 3, in the method for charging batteries 3 according to preferred embodiment of the present invention, Step 301 is to fix blanking time of 30 seconds and take a sample the measured battery 70 of temperature-sensing element 608 Temperature. Then, step 302 is that the temperature of battery 70 of comparison two continuous samplings is to obtain two sample points Temperature difference.
Whether the temperature difference of two sample points that step 303 determining step 302 is obtained is greater than zero, when two When the temperature difference of sample point is not more than zero, carry out step 304, when the temperature difference of two sample points greater than zero The time, carry out step 305.
In step 304, a parameter X is set at initial preset value, and parameter X is stored in deposits In the storage element 103. In the present embodiment, initial preset value is 15, and the initial value of parameter X is 15.
In step 305, parameter X is deducted 1, originally be stored in the memory element 103 to replace Parameter X. For example, when the parameter X in originally being stored in memory element 103 is 10, through the step After rapid 304, the parameter X that is stored in the memory element 103 becomes 9.
Then, step 306 judges whether the parameter X that is stored in the memory element 103 is zero, works as storage When being stored in parameter X in the memory element 103 and being zero, then carry out step 307, when being stored in storage element When the parameter X in the part 103 is non-vanishing, then repeat step 301.
Step 307 is to send the full charge status signal to switch 606, so that gauge tap 606 is not Conducting stops rechargeable battery 70; Or send the full charge status signal to controller 605, with Just switch controller 605 changes the charge mode of battery charger 1.
In sum, since in fact battery battery temperature in charging process only change approach full Just be a lasting curve that rises in certain period before the amount charging, so preferred embodiment of the present invention Battery charger and this law are to continue to increase in the temperature of battery is during certain, judge electricity Whether the pond reaches the full charge state, completely different with the method for utilizing the temperature variation size to judge, So, when using little electric current to big capacitor batteries charging, although the reduction of charging current can cause The rate of temperature change of battery reduces, but also can provide accurate according to battery charger of the present invention and method Really judge whether rechargeable battery reaches the full charge state, just battery charger of the present invention with Method can make the different battery of capacity use same charge power supply converter and charging procedure.
More than, described only is illustrative, but not is restricted. Any do not break away from spirit of the present invention with Category, and to its equivalent modifications of carrying out or change, all should be contained in the technical scheme of the present invention.
Claims (8)
1, a kind of battery charger, it charges to a battery, it is characterized in that comprising:
One receiving element, its temperature that receives at interval this battery according to regular time constantly measures resulting one present temperature value;
One comparing element, its when this present temperature value of each reception, this present temperature value and preceding once received a temperature value last time relatively; And
One switches element, and it changes the charge mode of this battery charger when this present temperature value is higher than this last time the number of times of temperature value arrived a predetermined value.
2, battery charger according to claim 1 is characterized in that: comprise
One memory element, it stores a parameter, when this battery charger begins to charge, the numerical value of this parameter is to be set to this predetermined value, when each time received this present temperature value, if this present temperature value is higher than this last time temperature value, the numerical value of this parameter was promptly subtracted one, when the numerical value of this parameter became zero, this switching device promptly changed the charge mode of this battery charger.
3, battery charger according to claim 2 is characterized in that: wherein be not higher than this last time during temperature value when this present temperature value, the numerical value of this parameter promptly is set to this predetermined value.
4, battery charger according to claim 1 is characterized in that: a measuring temp element, it measures the temperature of this battery.
5, a kind of method for charging batteries, it charges to a battery, it is characterized in that: the temperature that receives at interval this battery according to regular time measures resulting one present temperature value constantly;
When this present temperature value of each reception, this present temperature value and preceding once received a temperature value last time relatively; And
When this present temperature value is higher than this last time the number of times of temperature value arrived a predetermined value, change charge mode to this battery.
6, method for charging batteries according to claim 5 is characterized in that:
When this battery began to be recharged, the numerical value of setting a parameter was this predetermined value;
When this present temperature value is higher than this last time during temperature value, the numerical value of this parameter is subtracted one; And
When the numerical value of this parameter becomes zero, judge this present temperature value be higher than this last time the number of times of temperature value arrive this predetermined value.
7, method for charging batteries according to claim 6 is characterized in that: when this present temperature value is not higher than this last time during temperature value, the numerical value of setting this parameter is this predetermined value.
8, method for charging batteries according to claim 5 is characterized in that: the temperature that measures this battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011418346A CN1177386C (en) | 2001-09-19 | 2001-09-19 | Battery recharging device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011418346A CN1177386C (en) | 2001-09-19 | 2001-09-19 | Battery recharging device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1337758A true CN1337758A (en) | 2002-02-27 |
| CN1177386C CN1177386C (en) | 2004-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011418346A Expired - Fee Related CN1177386C (en) | 2001-09-19 | 2001-09-19 | Battery recharging device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1177386C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI414126B (en) * | 2009-01-23 | 2013-11-01 | Asustek Comp Inc | Charge device |
| CN106786963A (en) * | 2017-01-16 | 2017-05-31 | 维沃移动通信有限公司 | The charge protection method and mobile terminal of a kind of mobile terminal |
| CN109524732A (en) * | 2018-11-14 | 2019-03-26 | 郑州云海信息技术有限公司 | A kind of battery temperature acquisition methods and device |
| CN110014930A (en) * | 2017-12-14 | 2019-07-16 | 郑州宇通客车股份有限公司 | A kind of charging connection guard method and device |
| CN116317026A (en) * | 2023-05-09 | 2023-06-23 | 歌尔股份有限公司 | Battery charging control method and device and intelligent equipment |
-
2001
- 2001-09-19 CN CNB011418346A patent/CN1177386C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI414126B (en) * | 2009-01-23 | 2013-11-01 | Asustek Comp Inc | Charge device |
| CN106786963A (en) * | 2017-01-16 | 2017-05-31 | 维沃移动通信有限公司 | The charge protection method and mobile terminal of a kind of mobile terminal |
| CN110014930A (en) * | 2017-12-14 | 2019-07-16 | 郑州宇通客车股份有限公司 | A kind of charging connection guard method and device |
| CN109524732A (en) * | 2018-11-14 | 2019-03-26 | 郑州云海信息技术有限公司 | A kind of battery temperature acquisition methods and device |
| CN116317026A (en) * | 2023-05-09 | 2023-06-23 | 歌尔股份有限公司 | Battery charging control method and device and intelligent equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1177386C (en) | 2004-11-24 |
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Granted publication date: 20041124 Termination date: 20190919 |