CN201041817Y - Over-temperature protection device for battery modules - Google Patents
Over-temperature protection device for battery modules Download PDFInfo
- Publication number
- CN201041817Y CN201041817Y CNU2007200018566U CN200720001856U CN201041817Y CN 201041817 Y CN201041817 Y CN 201041817Y CN U2007200018566 U CNU2007200018566 U CN U2007200018566U CN 200720001856 U CN200720001856 U CN 200720001856U CN 201041817 Y CN201041817 Y CN 201041817Y
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- China
- Prior art keywords
- battery module
- temperature
- module
- switch
- application system
- 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.)
- Expired - Fee Related
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- 230000036413 temperature sense Effects 0.000 claims description 11
- 230000011664 signaling Effects 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An over-temperature protection device of a battery module, which is applied to an application system, wherein the battery module can generate a first temperature sensing signal, and the over-temperature protection device comprises: the temperature sensing module, the charging module, the first switch unit, the second switch unit and the control unit. The temperature sensing module is used for sensing the environment temperature of the application system and outputting a second temperature sensing signal, the first switch unit is used for switching on and off the charging of the battery module by the charging module, the second switch unit is used for switching on and off the power supply of the battery module to the application system, and the control unit is used for receiving the first temperature sensing signal and the second temperature sensing signal and controlling the on and off of the first switch unit and the second switch unit according to the temperature sensing signal. Therefore, the purpose of generating battery module protection measures due to overhigh or overlow temperature is achieved.
Description
Technical field
The utility model relates to a kind of over-temperature protection device, particularly a kind of over-temperature protection device that is applied to battery module.
Background technology
In recent years because the fast development of 3C industry, make that the application of secondary cell is more extensive, and in order to adapt to various powerful products and long-time situation about using, each tame dealer 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 secondary cell in electrolyte and electrode slice is closely related, therefore the fluctuation up and down of temperature can influence the characteristic of secondary cell significantly, therefore the temperature of secondary cell when storage or charge and discharge just has certain limitation, for example: general secondary cell is because there is liquid inside, and long-term storage 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, the internal resistance meeting of the battery infinity that becomes, and battery can't use; When temperature was too high, side reaction can take place and produce a large amount of gas in electrolyte, and the resin bonding agent 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.
Protecting secondary cell useful life at present about temperature and improve aspect of performance, is the radiating module that improves whole application system mostly, reduces secondary cell by good performance of heat dissipation and damages the situation that maybe can't use because of overheated the generation.But this mode often can only be carried out overheated protection in passive mode; if the ambient temperature of secondary cell self-temperature or application system continues to rise; make when radiating module can't be loaded, still can cause the damage of battery or even cause to carry out situations such as electric power storage.Therefore, for the application and the protection aspect of present secondary cell, the place that still has it to be improved.
Summary of the invention
For this reason; technical problem to be solved in the utility model is; the temperature of coming active detecting whole application system ambient temperature and battery module itself to be produced by simple hardware circuit and design; and can be controlled the keying of whether the discharging and recharging of battery module, application system or even produce warning message etc.; reaching the purpose that battery module is produced when too high or too low for temperature automatic safeguard measure, and then reduce the characteristic attenuation or the damage of battery module.
In order to address the above problem, the utility model provides a kind of over-temperature protection device of battery module, comprising: charging module, in order to the charging of this battery module to be provided; First switch element is connected electrically between this charging module and this battery module, in order to the charging of this charging module of switch to this battery module; The second switch unit is connected electrically between this battery module and the application system, in order to the power supply of this battery module of switch to this application system; And control unit, be electrically connected to described battery module, first switch element and second switch unit respectively, be used to receive first temperature sensing signal that this battery module produces, to control the keying of this first switch element and this second switch unit.
The over-temperature protection device of aforesaid battery module, wherein, described battery module also comprises the internal temperature of this battery module of sensing and produces thermistor, thermal diode or the thermocouple of this first temperature sensing signal.
The over-temperature protection device of aforesaid battery module, wherein, described first switch element and this second switch unit are the circuit that transistor line, control chip or transistor line and control chip made up.
The over-temperature protection device of aforesaid battery module, wherein, described control unit closes the control unit of machine operation for producing system control signal to control this application system.
The over-temperature protection device of aforesaid battery module, wherein, also further comprise: the temperature sense module, be electrically connected to described control unit, ambient temperature in order to this application system of sensing, and then export second temperature sensing signal, this control unit is for controlling the control unit of the keying of this first switch element and this second switch unit according to this second temperature sensing signal; And the caution unit, be electrically connected this control unit, to produce warning signal, wherein this caution unit is light-emitting diode, display or loud speaker.
In order to address the above problem; according to the scheme that the utility model proposed; a kind of over-temperature protection device of battery module also is provided; be applied to application system; this battery module is except providing the required power supply of this application system running; also produce first temperature sensing signal, this over-temperature protection device comprises: temperature sense module, first switch element, charging module, second switch unit and control unit.Wherein, the temperature sense module is in order to the temperature of sensing application system inside and application system environment of living in, and then export second temperature sensing signal, and first switch element is connected electrically between charging module and the battery module, in order to of the charging of switched charge module to battery module, and the second switch unit is connected electrically between battery module and the application system, with of the power supply of switching battery module to the application system, and control unit is electrically connected to described temperature sense module respectively, described first switch element and described second switch unit, in order to receiving first temperature sensing signal and second temperature sensing signal, and control the keying of first switch element and second switch unit according to described temperature sensing signal.
The over-temperature protection device of aforesaid battery module wherein, also comprises: the caution unit, be electrically connected this control unit, and to produce warning signal, wherein this caution unit is light-emitting diode, display or loud speaker.
The over-temperature protection device of aforesaid battery module; wherein; described battery module also is electrically connected to described control unit; and described battery module comprises the internal temperature of this battery module of sensing and produces thermistor, thermal diode or the thermocouple of second temperature sensing signal; this control unit is for controlling the keying of this first switch element and this second switch unit according to this second temperature sensing signal, and produces system control signal and close the control unit of machine operation to control this application system.
The present invention can realize because of too high or too low for temperature battery module being produced the purpose of automatic safeguard measure, also can reduce the performance that battery module causes because of temperature influence and the reduction in life-span, increases the battery module life cycle.
Above general introduction and ensuing detailed description and accompanying drawing all are to be to reach to be scheduled to mode, means and the effect that purpose is taked in order to further specify the utility model.And relevant other purpose of the present utility model and advantage will be set forth in follow-up explanation and accompanying drawing.
Description of drawings
Fig. 1 is the over-temperature protection device embodiment calcspar of the utility model battery module.
Wherein, description of reference numerals is as follows:
1 over-temperature protection device
10 temperature sense modules
2 application systems
20 control units
30 first switch elements
40 second switch unit
50 battery modules
60 charging modules
70 caution unit
Embodiment
Please refer to Fig. 1; over-temperature protection device embodiment calcspar for the utility model battery module; as shown in the figure; the utility model provides a kind of over-temperature protection device 1; be applied to application system 2; in order to overheat protector measure as battery module 50; wherein battery module 50 can be for example lead-acid battery (LeadAcid Battery); nickel-cadmium cell (Nickel Cadmium Battery); Ni-MH battery (Nickel HydrogenBattery); the secondary cell of lithium ion battery (Lithium Ion Battery) or high-polymer lithium battery (Polymer LithiumBattery); and battery module 50 is except can providing the required power supply of application system 2 runnings; more can by wherein comprise as thermistor (Thermistor); thermal diode (ThermalDiode) or thermocouple (Thermal Couple) (figure does not show) produce first temperature sensing signal with the internal temperature of the battery module 50 of sensing own.And the utility model over-temperature protection device 1 comprises: temperature sense module 10, control unit 20, first switch element 30, second switch unit 40, charging module 60 and caution unit 70.This temperature sense module 10 is in order to 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 in order to receiving first temperature sensing signal and second temperature sensing signal, and further controls the keying 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 can be for example control circuit of transistor line, control chip or both combinations.And charging module 60 is electrically connected this battery module 50 by first switch element 30, and in order to battery module 50 is charged, first switch element 30 then carries out the charging of 60 pairs of battery modules 50 of switched charge module in order to the control that receives control unit 20; In addition, 40 of second switch unit are electrically connected between battery module 50 and the application system 2, come 50 power supplies of switching battery module to give application system 2 with the control that receives control unit 20.
In addition, also can set the generation system control signal in the control unit 20, with when the ambient temperature of battery module 50 interior environment temperature or application system 2 is too high or too low, control application system 2 operation procedure that shuts down.In addition, 70 of caution unit are electrically connected control unit 20, make that control unit 20 is able to detect present every temperature regime according to first temperature sensing signal and second temperature sensing signal, produce different warning signals to remind the user by control caution unit 70 again, wherein warn unit 70 and can be for example light-emitting diode, all types of display or loud speaker etc.
Following description is described further at the actual operation mode of the utility model over-temperature protection device 1; at first; come the ambient temperature of sensing application system 2 and first set point of coming sensing whether to be higher than itself to set by control unit 20 or be lower than second set point by temperature sense module 10, 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.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.
And the sensing result of the ambient temperature of above-mentioned sensing application system 2 be or the judged result of internal temperature of judging battery module 50 when being higher than the 3rd set point or being lower than the 4th set point, then and then judge whether battery module 50 is in and accept the charged state that charging module 60 charges.And if battery module 50 is when being in charged state, then close first switch element 30 to stop this charged state, and after stopping charged state or judge that battery module 50 is not during for charged state, then can carry out shutdown programm closing the operating state of application system 2, and close second switch unit 40 again to stop the power supply of 50 pairs of application systems 2 of battery module.Prevention causes the damage or the characteristic attenuation of battery module 50 because the internal temperature of the ambient temperature of application system 2 or battery module 50 is lasting too high or too low thus.In addition, also can further provide caution unit 70 (as: light-emitting diode, all types of display or loud speaker etc.) to export warning signal, with the state of informing that temperature environment situation that the user is present or application system 2 have been in shutdown.
And if 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, just can open first switch element 30 so that charging module 60 can charge to battery module 50, and open second switch unit 40 so that application system 2 is given in battery module 50 power supplies.
In addition; the foregoing description is only in order to conveniently to explain 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 can be notebook computer (Notebook), mobile phone (Mobile Phone), PDA(Personal Digital Assistant) or portable multimedia play device (Portable Media Player, PMP) etc.In addition, each set point that sets in the control unit 20 can change its set point according to the kind of different battery module 50 to meet each battery module 50 preferred ambient temperature that store or operate.
At last, the foregoing description only is apparatus structure and the method flow of the utility model in order to the preferred embodiment of detailed description, it can contain the situation that any one of ordinary skill in the art are changed easily or disassemble, and for example: the internal temperature that simple serviceability temperature induction module 10 comes the ambient temperature of sensing application system 2 or only utilizes battery module 50 to be provided is used as controlling the foundation of first switch element 30 and second switch unit 40.
In sum; the utility model sees through the circuit simplify and not only can be controlled the keying of whether the discharging and recharging of battery module 50, application system 2 or even produce effect such as warning message; 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 cause the reduction in performance and life-span, increase the life cycle of battery module 50 because of temperature influence.
The above, only be the detailed description and the accompanying drawing of specific embodiment of the utility model, be not in order to restriction the utility model, all scopes of the present utility model should be as the criterion with following claims, any one of ordinary skill in the art are in field of the present utility model, and the variation that can make easily or modify all can be encompassed in the scope that following the utility model defines.
Claims (8)
1. the over-temperature protection device of a battery module is characterized in that, comprising:
Charging module is in order to provide the charging of this battery module;
First switch element is connected electrically between this charging module and this battery module, in order to the charging of this charging module of switch to this battery module;
The second switch unit is connected electrically between this battery module and the application system, in order to the power supply of this battery module of switch to this application system; And
Control unit is electrically connected to described battery module, first switch element and second switch unit respectively, is used to receive first temperature sensing signal that this battery module produces, to control the keying of this first switch element and this second switch unit.
2. the over-temperature protection device of battery module as claimed in claim 1 is characterized in that, described battery module also comprises the internal temperature of this battery module of sensing and produces thermistor, thermal diode or the thermocouple of this first temperature sensing signal.
3. the over-temperature protection device of battery module as claimed in claim 1 is characterized in that, described first switch element and this second switch unit are the circuit that transistor line, control chip or transistor line and control chip made up.
4. the over-temperature protection device of battery module as claimed in claim 1 is characterized in that, described control unit closes the control unit of machine operation for producing system control signal to control this application system.
5. the over-temperature protection device of battery module as claimed in claim 1 is characterized in that, also further comprises:
The temperature sense module, be electrically connected to described control unit, in order to the ambient temperature of this application system of sensing, and then export second temperature sensing signal, this control unit is for controlling the control unit of the keying of this first switch element and this second switch unit according to this second temperature sensing signal; And
The caution unit is electrically connected this control unit, and to produce warning signal, wherein this caution unit is light-emitting diode, display or loud speaker.
6. the over-temperature protection device of a battery module is applied to application system, it is characterized in that, comprising:
The temperature sense module in order to the ambient temperature of this application system of sensing, and then is exported first temperature sensing signal;
Charging module is in order to provide the charging of this battery module;
First switch element is connected electrically between this charging module and this battery module, in order to the charging of this charging module of switch to this battery module;
The second switch unit is connected electrically between described battery module and this application system, in order to the power supply of this battery module of switch to this application system; And
Control unit is electrically connected to described temperature sense module, described first switch element and described second switch unit respectively, receives this first temperature sensing signal, to control the keying of this first switch element and this second switch unit.
7. the over-temperature protection device of battery module as claimed in claim 6 is characterized in that, also further comprises:
The caution unit is electrically connected this control unit, and to produce warning signal, wherein this caution unit is light-emitting diode, display or loud speaker.
8. the over-temperature protection device of battery module as claimed in claim 6; it is characterized in that; described battery module also is electrically connected to described control unit; and described battery module comprises the internal temperature of this battery module of sensing and produces thermistor, thermal diode or the thermocouple of second temperature sensing signal; this control unit is for controlling the keying of this first switch element and this second switch unit according to this second temperature sensing signal, and produces system control signal and close the control unit of machine operation to control this application system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200018566U CN201041817Y (en) | 2007-01-16 | 2007-01-16 | Over-temperature protection device for battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200018566U CN201041817Y (en) | 2007-01-16 | 2007-01-16 | Over-temperature protection device for battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041817Y true CN201041817Y (en) | 2008-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200018566U Expired - Fee Related CN201041817Y (en) | 2007-01-16 | 2007-01-16 | Over-temperature protection device for battery modules |
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| Country | Link |
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| CN (1) | CN201041817Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104178A (en) * | 2009-12-18 | 2011-06-22 | 比亚迪股份有限公司 | Intelligent control device and method for cooling system |
| CN101685894B (en) * | 2008-09-27 | 2012-09-26 | 佛山市顺德区汉达精密电子科技有限公司 | Method and device for protecting batteries of electronic equipment from overheating |
| CN109310153A (en) * | 2016-06-29 | 2019-02-05 | 菲利普莫里斯生产公司 | Battery powered aerosol generating device including temperature dependent battery preheating |
| CN110416641A (en) * | 2019-07-17 | 2019-11-05 | 珠海格力电器股份有限公司 | Battery pack over-temperature protection control method and device, storage medium and controller |
-
2007
- 2007-01-16 CN CNU2007200018566U patent/CN201041817Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685894B (en) * | 2008-09-27 | 2012-09-26 | 佛山市顺德区汉达精密电子科技有限公司 | Method and device for protecting batteries of electronic equipment from overheating |
| CN102104178A (en) * | 2009-12-18 | 2011-06-22 | 比亚迪股份有限公司 | Intelligent control device and method for cooling system |
| CN102104178B (en) * | 2009-12-18 | 2013-08-28 | 比亚迪股份有限公司 | Intelligent control device and method for cooling system |
| CN109310153A (en) * | 2016-06-29 | 2019-02-05 | 菲利普莫里斯生产公司 | Battery powered aerosol generating device including temperature dependent battery preheating |
| US11533953B2 (en) | 2016-06-29 | 2022-12-27 | Philip Morris Products S.A. | Battery powered aerosol-generating device comprising a temperature dependent battery pre-heating |
| CN109310153B (en) * | 2016-06-29 | 2024-01-02 | 菲利普莫里斯生产公司 | Battery powered aerosol generating device including battery preheating based on temperature |
| CN110416641A (en) * | 2019-07-17 | 2019-11-05 | 珠海格力电器股份有限公司 | Battery pack over-temperature protection control method and device, storage medium and controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20100220 |