CN1619911A - Battery protector - Google Patents
Battery protector Download PDFInfo
- Publication number
- CN1619911A CN1619911A CNA2004100623831A CN200410062383A CN1619911A CN 1619911 A CN1619911 A CN 1619911A CN A2004100623831 A CNA2004100623831 A CN A2004100623831A CN 200410062383 A CN200410062383 A CN 200410062383A CN 1619911 A CN1619911 A CN 1619911A
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- CN
- China
- Prior art keywords
- signal
- battery
- temperature
- signals
- output
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Protection Of Static Devices (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a power cell protecting equipment which is used for avoiding various damages caused by temperatures by adopting a thermal inducer or a temperature inducer, wherein the thermal inducer is used for exploring internal heat (temperature) of a power cell and outputting corresponding signals; after the signal input/output control portion receives the signals mentioned above, the signals is transformed into corresponding digit signals which are then compared with the preset baseline value, and then the ON/OFF switching control signal is output according to the compared results; a multilevel switching element is controlled by the ON/OFF switching control signals output by the input/output control portion, when the signal is ON, the input/out (+, -) terminals of a power supply of the power cell is connected with a battery pack. Said equipment not only provides conveniency mentioned above to users, but also is helpful to improve the product development capability of developers.
Description
Technical field
The present invention relates to a kind of battery protecting apparatus (apparatus for protecting battery), this device can utilize thermal sensor or temperature inductor to prevent the cell performance loss that is caused by temperature.
Background technology
In the ordinary course of things, mobile communication terminal all includes the battery (Battery) of power supply, and this battery then has and charges, provides the power supply input (+) of power supply, (-) port, and the thermometric terminal (TH) that can monitor battery temperature for terminal.
As shown in Figure 1; above thermometric terminal TH is connected with thermistor (Thermistor) TH1 on being positioned at inside battery protective circuit module (PCM:Protection Circuit Module); when charging or power supply when supply; when if internal temperature of battery is higher than the high temperature index that sets in advance or is lower than the low temperature index; the extraneous charging device that is connected with battery promptly disconnects and being connected; perhaps by the mode of terminal software control, cut off being connected between battery and the external equipment.That is to say, when satisfying above condition, cut off the charging current that provides from charger; Perhaps disconnect power supply is provided, and then avoid the contingent damage of battery to terminal.
But this Technology Need is realized by the software control mode, that is need constantly confirm by possessing in the program of charger or terminal inner to the resistance value of thermistor, make program be in improper application state, this method causes easily charging under high temperature or low-temperature condition or provides the situation of power supply to take place to terminal, and may cause cell damage.
As mentioned above; be connected and be used to measure required terminating machine of internal temperature of battery or charger program at present with battery; all need to measure internal temperature of battery by the thermistor in the inside battery protective circuit module; therefore; make mistakes or battery temperature when surpassing normal range of operation when this program, just cause the damage of inside battery structure easily.
Summary of the invention
In order to overcome the above defective of prior art; the object of the present invention is to provide a kind of battery protecting apparatus; it utilizes thermal sensor that internal temperature of battery is surveyed; and, switch by the ON/OFF between multiple-pole switch component controls battery and the external device (ED) then according to this monitoring result output ON/OFF (ON/OFF) switch-over control signal.By this method, this battery protecting apparatus not only can provide the convenience in the use for the user but also can reach the purpose that improves developer's product development ability.
To achieve these goals, the architectural feature of device of the present invention is as follows: a kind of battery protecting apparatus, and it comprises: thermal sensor is used for the heat (temperature) of monitoring cell inside, the signal of output respective value; The I/O control section is a digital signal with the conversion of signals of above-mentioned thermal sensor output, and the digital signal after will change compares with the fiducial value that pre-sets, and exports ON/OFF (ON/OFF) switch-over control signal according to comparing result then; The multiple-pole switch parts, it is after ON/OFF (ON/OFF) switch-over control signal that receives by the output of I/O control section, will carry out corresponding action: when this signal when opening (ON), can realize being connected between power supply I/O (+,-) port and the battery pack.
Wherein, described I/O control section has following architectural feature: the signal by above-mentioned thermal sensor output is converted to correspondent voltage signal and output by the temperature/voltage conversion fraction; The voltage transitions that to partly be exported by said temperature/voltage transformation by the analog/digital conversion part is a digital signal then; By switching control section digital signal of partly being exported by above-mentioned analog/digital conversion and the fiducial value that has been provided with are compared, export the ON/OFF switching signal at last.
According to above-mentioned detailed description; battery protecting apparatus among the present invention comprises the thermal sensor of monitoring internal temperature of battery; and according to interconnective multiple-pole switch parts between this monitor temperature output ON/OFF switching signal control battery and the external device etc.; utilize this structure; not only can be for the user provide convenience in the use, but also can reach the effect that improves developer's product development ability.
Description of drawings
Fig. 1 is the existing apparatus internal structure schematic diagram that comprises the thermistor of monitoring cell temperature.
Fig. 2 is the battery protecting apparatus structured flowchart among the present invention.
Fig. 3 is the workflow diagram of battery protecting apparatus among the present invention.
Main figure number explanation:
10: switch block 20: the I/O control section
21: switching control section 22: the analog/digital conversion part
23: temperature/voltage conversion fraction 30: thermal sensor
Embodiment
Fig. 2 is the construction module figure of battery protecting apparatus of the present invention.As shown in Figure 2, this battery protecting apparatus construction module figure is by formations such as multiple-pole switch parts (for example, transistor) 10, thermal sensor 30, I/O control sections 20.Wherein, the power port (+,-) that multiple-pole switch parts 10 are positioned at the battery pack (not shown) and battery supply input/output end port (+,-) between, by finish the switching of ON/OFF by the figure signal of outside input; 30 pairs of inside battery heats of thermal sensor (temperature) are surveyed, and export certain signal; By I/O control section 20 will be digital signal corresponding by the signal transition of thermal sensor 30 outputs, and after this digital signal and the fiducial value that set in advance compared, the ON/OFF switching signal is sent to aforesaid multiple-pole switch parts 10.
Described I/O control section 20 comprises temperature/voltage conversion fraction 23, analog/digital conversion part 22, switching control section 21 etc.By temperature/voltage conversion fraction 23 will be the correspondent voltage value by the conversion of signals of thermal sensor 30 outputs; Magnitude of voltage after will changing by analog/digital conversion part 22 further is converted to corresponding digital; To compare by the digital signal of analog/digital conversion part 22 outputs and the fiducial value that has been provided with by switching control section 21, afterwards the ON/OFF switching signal be sent to above-mentioned multiple-pole switch parts 10.
Suppose that said temperature/voltage transformation part 23 following transfer process has taken place, correspondingly has been described as follows.Under typical temperature, to be converted to the magnitude of voltage in 0～1.2V scope by the signal specific of thermal sensor 30 outputs, output then, when the temperature that is detected is 45 degrees centigrade, above-mentioned signal promptly is converted into the magnitude of voltage within 0.7～1.0V scope, and when the temperature measuring value was-5 degrees centigrade, this signal was converted into the voltage in 0.2～0.4V scope, exported then.
Fig. 3 is the workflow schematic diagram of battery protecting apparatus among the present invention.As shown in the figure, by thermal sensor 30 monitoring internal temperature of battery, above-mentioned monitoring result is converted to the correspondent voltage value, then this magnitude of voltage further is converted to corresponding digital information, afterwards, this numeral and the fiducial value that sets in advance are compared, judge the temperature conditions of inside battery thus.Through judging,, promptly close the multiple-pole switch parts, otherwise will open the multiple-pole switch parts when the measured internal temperature of battery that obtains is higher than 45 degrees centigrade or when being lower than-5 degrees centigrade.
Suppose that above-mentioned workflow of the present invention is that battery temperature is being higher than-5 degrees centigrade (low temperature critical values), is being lower than the course of normal operation within the scope of 45 degrees centigrade (high temperature critical values), further specifies as follows to it.
By thermal sensor 30 monitoring cell internal temperatures, and export corresponding signal value.Temperature/voltage conversion fraction 23 receives the signal specific value of being sent by thermal sensor 30, and exports after this signal value is converted to the correspondent voltage value.For example, when the temperature value that is detected by thermal sensor 30 is 45 degrees centigrade, by the voltage of temperature/voltage conversion fraction 23 conversion output numerical value within 0.7～1.0V scope, and when the temperature value that records was-5 degrees centigrade, voltage output numerical value was within 0.2～0.4V scope.
Specific voltage value by said temperature/voltage transformation part 23 outputs is converted to numeral by analog/digital conversion part 22, by switching control section 21 above numerical data through conversion is compared with the fiducial value that sets in advance again, judge whether battery is within the normal working temperature scope.
Through above-mentioned deterministic process, when battery is within the normal working temperature scope, be that temperature is higher than low temperature critical value (5 degrees centigrade) and when being lower than high temperature critical value (45 degrees centigrade), described device sends to multiple-pole switch parts 10 and connects battery and the required ON switch-over control signal of external device (for example, terminating machine or rechargeable battery).
Be positioned at the multiple-pole switch parts 10 of battery supply input/output end port, after above-mentioned switching control section 21 receives this ON switch-over control signal, receive certain electric current from charger battery is charged, perhaps to the certain electric current of terminal output, to guarantee the normal operation of terminating machine.
Otherwise, if through above deterministic process, when determining that battery temperature is higher than the high temperature critical value or is lower than the low temperature critical value, send the OFF switch-over control signal to multiple-pole switch parts 10, and cut off being connected between battery and the external equipment by switching control section 21.
In sum, the present invention has solved the variety of issue that may be caused by temperature factor by hardware approach.
Claims (2)
1, a kind of battery protecting apparatus is characterized in that, this device comprises:
Thermal sensor is used for the heat of monitoring cell inside, and exports certain signal thus;
Signal I/O control section, this part are specific digital signal with this conversion of signals after having received the signal specific of being sent by thermal sensor, and after itself and the fiducial value that pre-sets compared, export the on/off switch control signal again;
The multiple-pole switch parts, by the on/off switch control signal control of I/O control section output, when this signal when opening, will couple together between battery supply input/output end port and the battery pack.
2, battery protecting apparatus as claimed in claim 1 is characterized in that, described signal I/O control section comprises:
The temperature/voltage conversion fraction will be converted to set magnitude of voltage by the acquired signal of thermal sensor output;
The analog/digital conversion part further is converted to corresponding digital with the magnitude of voltage after the conversion;
Switching control section, the digital signal that will partly be exported by analog/digital conversion and the fiducial value that has been provided with compare, and then the on/off switch signal are sent to the multiple-pole switch parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030082277A KR20050048364A (en) | 2003-11-19 | 2003-11-19 | Apparatus for protecting battery |
| KR10-2003-0082277 | 2003-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1619911A true CN1619911A (en) | 2005-05-25 |
Family
ID=34793099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100623831A Pending CN1619911A (en) | 2003-11-19 | 2004-07-09 | Battery protector |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20050048364A (en) |
| CN (1) | CN1619911A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761666A (en) * | 2012-06-29 | 2012-10-31 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN113964404A (en) * | 2021-09-29 | 2022-01-21 | 河南中烟工业有限责任公司 | Heating smoking set power supply protection method based on internal temperature regulation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082868A (en) * | 2010-12-15 | 2011-06-01 | 上海华勤通讯技术有限公司 | Mobile phone abnormal temperature charging control alarm system |
-
2003
- 2003-11-19 KR KR1020030082277A patent/KR20050048364A/en not_active Application Discontinuation
-
2004
- 2004-07-09 CN CNA2004100623831A patent/CN1619911A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761666A (en) * | 2012-06-29 | 2012-10-31 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN102761666B (en) * | 2012-06-29 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN113964404A (en) * | 2021-09-29 | 2022-01-21 | 河南中烟工业有限责任公司 | Heating smoking set power supply protection method based on internal temperature regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050048364A (en) | 2005-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |