CN101207188A - Excess temperature protection method of battery module - Google Patents
Excess temperature protection method of battery module Download PDFInfo
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- CN101207188A CN101207188A CNA200610171248XA CN200610171248A CN101207188A CN 101207188 A CN101207188 A CN 101207188A CN A200610171248X A CNA200610171248X A CN A200610171248XA CN 200610171248 A CN200610171248 A CN 200610171248A CN 101207188 A CN101207188 A CN 101207188A
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- battery module
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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 invention relates to an over-temperature protection method of a battery module, which is applied to an application system. The invention is characterized in that the over-temperature protection method comprises the following steps: firstly, whether the internal temperature of the battery module is higher than a first setting value or lower than a second setting value or not is judged, if the internal temperature of the battery module is higher than the first setting value or lower than the second setting value, whether the battery module is in the charging state or not is judged, if the battery module is in the charging state, a first switching unit is turned off to stop the charging state, and a second switching unit is turned off to stop the power supply of the battery module to the application system; therefore the purpose that the protective measures are performed to the battery module because of over high temperature or over low temperature is attained.
Description
Technical field
The present invention relates to a kind of excess temperature protection method, particularly a kind of excess temperature protection method that is applied to battery module.
Background technology
In recent years, because the fast development of 3C industry, make that the application of storage battery is more extensive, and in order to meet various powerful products and long-time situation about using, each company releases one after another to be increased the battery service efficiency and prolongs the battery solution in useful life.
And we know that there are very big relation in the charge capacity of temperature and battery and life-span, because migration rate and the temperature of storage battery in electrolyte and electrode slice is closely related, therefore the fluctuation up and down of temperature can influence the characteristic of storage battery significantly, therefore the temperature of storage battery when storage or charge and discharge just is subjected to certain limitation, for example: general storage battery is because there is liquid inside, and long-term storage then can be destroyed the inside battery chemical substance under low temperature condition; And too high temperature also makes battery can't reach its rated capacity.Therefore, cross when low when temperature, the electrolyte in the battery can solidify, and it is infinitely great that the internal resistance meeting of battery becomes, and battery can't use; When temperature was too high, side effect can take place and produce a large amount of gas in electrolyte, and the resin adhesive in the electrode slice also can go bad, thereby caused the aging gradually and decline of entire cell, even lost efficacy in a short time.
At present, protect storage battery useful life about temperature and improve usefulness aspect, all improve the radiating module of whole application system mostly, reduce storage battery by good heat dissipation and produce the situation that damage maybe can't be used because of overheated.But this mode often can only be carried out overheated protection in passive mode; if the ambient temperature of storage battery self-temperature or application system continues to rise; make radiating module can't resist when load, still can cause the damage of battery even cause to carry out situation such as electric power storage.Therefore, application and protection aspect for present storage battery still have the place of being improved.
Summary of the invention
Given this; the technical problem that the present invention wants to solve is; carry out the ambient temperature of active detecting whole application system and the temperature that battery module itself is produced by simple hardware circuit and design; and can be controlled the switch of whether the discharging and recharging of battery module, application system or even produce warning message etc.; realizing battery module being produced the purpose of automatic safeguard measure when too high or too low for temperature, and then reduce the characteristic attenuation or the damage of battery module.
In order to address the above problem, the invention provides a kind of excess temperature protection method of battery module, be applied to application system, it is characterized in that, comprise the steps: whether the internal temperature of judging this battery module is higher than first set point or is lower than second set point; If the internal temperature of this battery module is higher than this first set point or is lower than this second set point, judge then whether this battery module is in charged state; If this battery module is in charged state, then close first switch element to stop this charged state; And close the second switch unit to stop of the power supply of this battery module to this application system.
According to another program proposed by the invention; a kind of excess temperature protection method of battery module is provided; be applied to application system; it is characterized in that; may further comprise the steps: at first whether the ambient temperature of this application system of sensing is higher than first set point or is lower than second set point; if this ambient temperature is not higher than first set point or is lower than second set point; then continue to judge whether the internal temperature of battery module is higher than the 3rd set point or is lower than the 4th set point; and when if the internal temperature of battery module has been higher than the 3rd set point or has been lower than the 4th set point; just judge again whether battery module is in the state of charging; if battery module is in charged state; then close first switch element stopping this charged state, and close the second switch unit again to stop the power supply of battery module to this application system.Reach the purpose of carrying out overheat protector for battery module according to temperature thus.
Above general introduction and ensuing detailed description and accompanying drawing all are in order to further specify mode, means and the effect that the present invention takes for the predetermined purpose of realization.And relevant other purpose of the present invention and advantage, will after set forth in the explanation chatted and the accompanying drawing.
Description of drawings
Fig. 1 is the calcspar of embodiment of the over-temperature protection device of battery module of the present invention;
Fig. 2 is the flow chart of embodiment of the excess temperature protection method of battery module of the present invention.
Wherein, description of reference numerals is as follows:
Over-temperature protection device 1
Temperature sense module 10
Embodiment
Fig. 1 is the calcspar of embodiment of the over-temperature protection device of battery module of the present invention; as shown in the figure; the invention provides a kind of over-temperature protection device 1; be applied to application system 2; be used as the overheat protector measure of battery module 50; wherein; battery module 50 for example is lead-acid battery (Lead Acid Battery); nickel-cadmium cell (Nickel Cadmium Battery); Ni-MH battery (Nickel Hydrogen Battery); the storage battery of lithium ion battery (Lithium Ion Battery) or high-polymer lithium battery (Polymer Lithium Battery); and battery module 50 is except can providing the required power supply of application system 2 work; also can by wherein comprised as thermistor (Thermistor); thermal diode (Thermal Diode) or thermocouple (Thermal Couple) (figure do not show) come the internal temperatures of sensing battery module 50 itself and produce first temperature sensing signal.And over-temperature protection device 1 of the present invention comprises: temperature sense module 10, control unit 20, first switch element 30, second switch unit 40, charging module 60 and alarm unit 70.This temperature sense module 10 is used for the ambient temperature of sensing application system 2, and then exports second temperature sensing signal, and the ambient temperature of this application system 2 for example can be the temperature of application system 2 internal environments or the temperature of application system 2 external environment conditions of living in.
And control unit 20 is used for receiving first temperature sensing signal and second temperature sensing signal, and further controls the switch of first switch element 30 and second switch unit 40 by first temperature sensing signal and second temperature sensing signal.Wherein, first switch element 30 and second switch unit 40 for example can be the control circuit of transistor line, control chip or both combinations.Moreover, charging module 60 is electrically connected this battery module 50 by first switch element 30, being used for battery module 50 charges and is provided, and first switch element 30 then is used for receiving the control of control unit 20 and carries out the charging that 60 pairs of battery modules 50 of switched charge module are carried out; In addition, 40 of second switch unit are electrically connected between battery module 50 and the application system 2, make 50 power supplies of switching battery module give application system 2 with the control that receives control unit 20.
In addition, in control unit 20, also can set the generation system control signal, and when the environment of battery module 50 internal environments or application system 2 too high or too low for temperature, controlled application system 2 and carry out the power-off operation program.In addition, 70 of alarm units are electrically connected on control unit 20, make control unit 20 detect present every temperature regime according to first temperature sensing signal and second temperature sensing signal, produce different warning signals by control alarm unit 70 again and remind the user, wherein, alarm unit 70 for example is light-emitting diode, all types of display or loud speaker etc.
Fig. 2 is the flow chart of embodiment of the excess temperature protection method of battery module of the present invention; as shown in the figure; the invention provides a kind of excess temperature protection method of battery module 50; be applied to application system 2; its step comprises: at first; come the ambient temperature of sensing application system 2 by temperature sense module 10; and first set point of being come sensing whether to be higher than itself to set by control unit 20 or be lower than second set point (S201), and the ambient temperature of this application system 2 for example is the temperature of application system 2 internal environments or the temperature of application system 2 external environment conditions of living in.Then, if the ambient temperature of institute's sensing is not higher than first set point or is lower than second set point, judge then whether the internal temperature of battery module 50 is higher than the 3rd set point that sets in the control unit 20 or is lower than the 4th set point (S203).
And be that the judged result of "Yes" or step (S203) is battery module 50 internal temperatures when being higher than the 3rd set point or being lower than the 4th set point in the sensing result of step (S201), judged then whether battery module 50 is in the charged state (S205) of accepting charging module 60 and charging.And, if battery module 50 is when being in charged state, then close first switch element 30 and stop this charged state (S207), and then step (S207) afterwards or the judged result of step (S205) be that battery module 50 is not during for charged state, then can further carry out shutdown programm and close the operating state (S209) of application system 2, and close second switch unit 40 again and stop the power supply (S211) that 50 pairs of application systems 2 of battery module are carried out.Thus prevention because the internal temperature of the ambient temperature of application system 2 or battery module 50 continues too high or too low damage or the characteristic attenuation battery module 50 that causes.In addition, also can further provide alarm unit 70 (as: light-emitting diode, all types of display or loud speaker etc.) to export warning signal (S213) again, with the state of informing that temperature environment situation that the user is present or application system 2 have been in shutdown.
And be "No" in the judged result of step (S203), represent that promptly the ambient temperature of present application system 2 or the internal temperature of battery module 50 are not higher or lower than predefined temperature as yet, still in normal operating range, therefore just open first switch element 30 so that charging module 60 can charge (S215) to battery module 50, and open second switch unit 40 so that application system 2 (S217) is given in battery module 50 power supplies.
By the way; the foregoing description only is used for conveniently explaining the signal of 2 of over-temperature protection device 1 and application systems and the transmission of power supply; in practical application; over-temperature protection device 1 can be built in the application system 2; wherein application system 2 for example be notebook computer (Notebook), mobile phone (Mobile Phone), PDA(Personal Digital Assistant) or portable media player (Portable Media Player, PMP) etc.In addition, each set point that sets in control unit 20 can be changed its set point according to the kind of different battery module 50 to meet the ambient temperature of each battery module 50 preferable storage or work.
At last, the apparatus structure and the method flow of the preferred embodiment that the above embodiments only are used for describing in detail for the present invention, it can contain the situation that any personnel that are familiar with this technology can be changed easily or disassemble, for example: simple serviceability temperature induction module 10 comes the ambient temperature of sensing application system 2, the internal temperature that perhaps only utilizes battery module 50 and provided and as the foundation of control first switch element 30 and second switch unit 40.
In sum; the circuit of the present invention by simplifying; the switch of whether the discharging and recharging of may command battery module 50, application system 2 or even produce effect such as warning message not only; to reach the purpose that battery module 50 is produced automatic safeguard measure because of too high or too low for temperature; also can reduce battery module 50 and reduce usefulness and life-span, increase the life cycle of battery module 50 because of being subjected to Temperature Influence.
Claims (10)
1. the excess temperature protection method of a battery module is applied to application system, it is characterized in that, comprises the steps:
Whether the internal temperature of judging this battery module is higher than first set point or is lower than second set point;
If the internal temperature of this battery module is higher than this first set point or is lower than this second set point, judge then whether this battery module is in charged state;
If this battery module is in charged state, then close first switch element to stop this charged state; And
Close the second switch unit to stop of the power supply of this battery module to this application system.
2. the excess temperature protection method of battery module as claimed in claim 1 is characterized in that, if this battery module is not to be in charged state, then carries out this and closes the step of second switch unit and stop the power supply of this battery module to this application system.
3. the excess temperature protection method of battery module as claimed in claim 1 is characterized in that, also comprises the steps:
Whether the ambient temperature that detects this application system is higher than the 3rd set point or is lower than the 4th set point;
Close the operating state of this application system; And
Provide alarm unit to export warning signal.
4. the excess temperature protection method of battery module as claimed in claim 3 is characterized in that, the ambient temperature of described application system is the temperature of this application system internal environment or the temperature of this application system external environment condition of living in.
5. the excess temperature protection method of battery module as claimed in claim 3 is characterized in that, if this ambient temperature is higher than the 3rd set point or is lower than the 4th set point, then carries out this and judges whether battery module is in the step of charged state.
6. the excess temperature protection method of a battery module is applied to application system, it is characterized in that, comprises the steps:
Whether the ambient temperature of this application system of sensing is higher than first set point or is lower than second set point;
If this ambient temperature is higher than this first set point or is lower than this second set point, judge then whether this battery module is in charged state;
If this battery module is in charged state, then close first switch element to stop this charged state; And
Close the second switch unit and stop of the power supply of this battery module this application system.
7. the excess temperature protection method of battery module as claimed in claim 6 is characterized in that, the ambient temperature of described application system is the temperature of this application system internal environment or the temperature of this application system external environment condition of living in.
8. the excess temperature protection method of battery module as claimed in claim 6 is characterized in that, if this battery module is not to be in charged state, then carries out this and closes the step of second switch unit and stop the power supply of this battery module to this application system.
9. the excess temperature protection method of battery module as claimed in claim 6 is characterized in that, also comprises the steps:
Whether the internal temperature of judging this battery module is higher than the 3rd set point or is lower than the 4th set point;
Close the operating state of this application system; And
Provide alarm unit to export warning signal.
10. the excess temperature protection method of battery module as claimed in claim 9 is characterized in that, if the internal temperature of this battery module is higher than the 3rd set point or is lower than the 4th set point, then carries out this and judges whether battery module is in the step of charged state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610171248XA CN101207188A (en) | 2006-12-21 | 2006-12-21 | Excess temperature protection method of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610171248XA CN101207188A (en) | 2006-12-21 | 2006-12-21 | Excess temperature protection method of battery module |
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| Publication Number | Publication Date |
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| CN101207188A true CN101207188A (en) | 2008-06-25 |
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| CNA200610171248XA Pending CN101207188A (en) | 2006-12-21 | 2006-12-21 | Excess temperature protection method of battery module |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651327A (en) * | 2008-08-11 | 2010-02-17 | 三星电子株式会社 | Portable device and control method thereof |
| CN101714766B (en) * | 2008-10-06 | 2012-10-10 | 郭献元 | Battery high-temperature status prevention and protection method and system |
| CN105576308A (en) * | 2016-02-04 | 2016-05-11 | 北京长城华冠汽车科技股份有限公司 | Method and device for charging battery module of vehicle-mounted rechargeable energy storage system |
| CN105591439A (en) * | 2016-02-24 | 2016-05-18 | 努比亚技术有限公司 | Mobile terminal charging state control device and mobile terminal charging state control method |
| CN105634096A (en) * | 2016-02-26 | 2016-06-01 | 北京长城华冠汽车科技股份有限公司 | Battery module charging method and device for on-board rechargeable energy storage system |
| CN105703025A (en) * | 2016-02-04 | 2016-06-22 | 北京长城华冠汽车科技股份有限公司 | Battery module discharge method and device for on-board rechargeable energy storage system |
| CN110401258A (en) * | 2018-04-25 | 2019-11-01 | 北京汉能光伏投资有限公司 | Solar battery output control method |
| CN113746064A (en) * | 2021-08-16 | 2021-12-03 | 深圳荆虹科技有限公司 | Overheat protection system for electronic equipment, electronic equipment and control method |
-
2006
- 2006-12-21 CN CNA200610171248XA patent/CN101207188A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651327A (en) * | 2008-08-11 | 2010-02-17 | 三星电子株式会社 | Portable device and control method thereof |
| CN101714766B (en) * | 2008-10-06 | 2012-10-10 | 郭献元 | Battery high-temperature status prevention and protection method and system |
| CN105576308A (en) * | 2016-02-04 | 2016-05-11 | 北京长城华冠汽车科技股份有限公司 | Method and device for charging battery module of vehicle-mounted rechargeable energy storage system |
| CN105703025A (en) * | 2016-02-04 | 2016-06-22 | 北京长城华冠汽车科技股份有限公司 | Battery module discharge method and device for on-board rechargeable energy storage system |
| CN105576308B (en) * | 2016-02-04 | 2019-11-01 | 北京长城华冠汽车科技股份有限公司 | A kind of the battery modules charging method and device of vehicle-mounted chargeable energy-storage system |
| CN105703025B (en) * | 2016-02-04 | 2019-11-29 | 北京长城华冠汽车科技股份有限公司 | A kind of the battery modules charging method and device of vehicle-mounted chargeable energy-storage system |
| CN105591439A (en) * | 2016-02-24 | 2016-05-18 | 努比亚技术有限公司 | Mobile terminal charging state control device and mobile terminal charging state control method |
| CN105634096A (en) * | 2016-02-26 | 2016-06-01 | 北京长城华冠汽车科技股份有限公司 | Battery module charging method and device for on-board rechargeable energy storage system |
| CN110401258A (en) * | 2018-04-25 | 2019-11-01 | 北京汉能光伏投资有限公司 | Solar battery output control method |
| CN113746064A (en) * | 2021-08-16 | 2021-12-03 | 深圳荆虹科技有限公司 | Overheat protection system for electronic equipment, electronic equipment and control method |
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Open date: 20080625 |