CN101714771A - Battery high-temperature charging protection control circuit - Google Patents
Battery high-temperature charging protection control circuit Download PDFInfo
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- CN101714771A CN101714771A CN200910262371A CN200910262371A CN101714771A CN 101714771 A CN101714771 A CN 101714771A CN 200910262371 A CN200910262371 A CN 200910262371A CN 200910262371 A CN200910262371 A CN 200910262371A CN 101714771 A CN101714771 A CN 101714771A
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Abstract
The invention relates to a control circuit for battery high-temperature charging protection, which comprises a diode (D1) and a direct current contactor (K1), wherein the direct current contactor comprise a coil pin 1, a coil pin 2, a third contact point and a fourth contact point; the negative electrode (D1) of the diode and the fourth contact point of the direct current contact (K1) are connected with the positive electrode of a power supply (Power +); the positive electrode (D1) of the diode and the third contact point of the direct current contact (K1) are connected with the positive electrode of a battery (Battery); the coil pin 1 of the direct current contactor (K1) is connected with a microcomputer control circuit to output a control signal (Signal); and the coil pin 2 of the direct current contactor (K1) is connected with the negative electrode of the power supply (Power -). The invention can effectively control the operation temperature of the battery, and prolong the service life of the battery.
Description
Technical field
The present invention relates to a kind of battery high-temperature charging protection control circuit.
Background technology
The normal operating ambient temperature of storage battery is designed to 25 ℃, and the every rising 10K of temperature, and will reduce 50% useful life, therefore, for communication base station, keep normal operating temperature for guaranteeing battery, with additionally expending certain refrigeration energy, be unfavorable for energy-saving and emission-reduction; If do not control the battery operation temperature, will cut down the useful life of battery the excessive increase of scrapping with O﹠M cost that causes battery greatly.Therefore, from the angle of current environmental protection and energy saving and operating cost, using battery high-temperature charging protection circuit Based Intelligent Control battery charge is trend in the future.
Summary of the invention
In order to overcome can not controlling the battery operation temperature, cutting down the deficiency in useful life of existing charge protector of battery, the invention provides and a kind ofly can effectively control the battery operation temperature, prolong the battery battery high-temperature charging protection control circuit in useful life.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of battery high-temperature charging protection control circuit; comprise diode (D1) and D.C. contactor (K1); described D.C. contactor comprises coil 1 pin; coil 2 pin; the 3rd contact and the 4th contact; the 4th contact of diode cathode (D1) and D.C. contactor (K1) connects positive source (Power+); the 3rd contact of diode cathode (D1) and D.C. contactor (K1) connects the positive pole of battery (Battery); coil 1 pin of D.C. contactor (K1) connects microcomputer control circuit output control signal (Signal), and coil 2 pin of D.C. contactor (K1) are connected with power cathode (Power-).
Technical conceive of the present invention is: be made up of sampling importation, system controlled by computer part, D.C. contactor and diode, microcomputer is by detecting charging busbar voltage, battery terminal voltage, battery charging and discharging electric current, three-phase alternating current, outside the battery chamber, indoor environment temperature and cell surface temperature, simultaneously battery status is switched to charged state, discharge condition or static condition, charge normal and discharge to guarantee battery according to setup parameter.Charged state: battery current forward and the electric current judgement set point that finishes greater than charging.Discharge condition: battery current is a negative.Static condition: battery does not charge and does not discharge yet, and D.C. contactor (K1) disconnects.
When the battery surface temperature is higher than set point, and charging current is less than set point, and the duration reaches after the set point, and battery status transfers static condition to by charged state; When the battery surface temperature is lower than set point, and battery terminal voltage all is that battery status then transfers floating charge state to by static condition less than set point in acknowledging time; When detecting battery current is negative, perhaps exchanges when having a power failure, and battery status then transfers discharge condition to.Like this, just can guarantee that battery can normally operation under the set environment temperature.
The battery high-temperature charging protection circuit is under the hot operation environment; the various factors that may cause the decay of battery operation life-span; by optimization exploitation to the battery charging management program; thereby guarantee that storage battery can normally move at environment below 50 ℃; promoted the running environment adaptive capacity of battery; thoroughly eliminate the battery energy consumption for cooling, prolonged the battery operation life-span.
Beneficial effect of the present invention mainly shows: 1, can effectively control the battery operation temperature, prolong battery useful life; 2, circuit is reliable and stable, and control principle is simple.The parameter and the setup parameter that obtain by sampling compare, and make judgement, output control signal (Signal), and the disconnection of control D.C. contactor K1 and adhesive are to control battery charge, to discharge, leave standstill.
Description of drawings
Fig. 1 is the circuit diagram of battery high-temperature charging protection circuit.
Fig. 2 is the experimental waveform figure of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
See figures.1.and.2; a kind of battery high-temperature charging protection control circuit; comprise diode (D1) and D.C. contactor (K1); described D.C. contactor comprises coil 1 pin; coil 2 pin; the 3rd contact and the 4th contact; the 4th contact of diode cathode (D1) and D.C. contactor (K1) connects positive source (Power+); the 3rd contact of diode cathode (D1) and D.C. contactor (K1) connects the positive pole of battery (Battery); coil 1 pin of D.C. contactor (K1) connects microcomputer control circuit output control signal (Signal), and coil 2 pin of D.C. contactor (K1) are connected with power cathode (Power-).
The negative pole of battery (Battery) is connected with power cathode (Power-).Load (L1) is connected between positive source (Power+) and the power cathode (Power-).
In foregoing circuit, D.C. contactor (K1) adhesive and off-state are by control signal Signal high level or low level control.Microcomputer is by detecting charging busbar voltage, battery terminal voltage, battery charging and discharging electric current, three-phase alternating current, outside the battery chamber, indoor environment temperature and cell surface temperature, simultaneously battery status is switched to charged state, discharge condition or static condition, charge normal and discharge to guarantee battery according to setup parameter.Charged state: battery current forward and the electric current judgement set point that finishes greater than charging.Discharge condition: battery current is a negative.Static condition: battery does not charge and does not discharge yet, and D.C. contactor (K1) disconnects.
When the battery surface temperature is higher than set point, and charging current is less than set point, and the duration reaches after the set point, and battery status transfers static condition to by charged state; When the battery surface temperature is lower than set point, and battery terminal voltage all is that battery status then transfers floating charge state to by static condition less than set point in acknowledging time; When detecting battery current is negative, perhaps exchanges when having a power failure, and battery status then transfers discharge condition to.Like this, just can guarantee that battery can normally operation under the set environment temperature.
In the present embodiment, when D.C. contactor (K1) adhesive, electric current is flow through the 4th contact 4, the D.C. contactor (K1) of D.C. contactor (K1) by positive source (Power+) the 3rd contact 3 arrives the positive pole of batteries (Battery), gets back to power cathode (Power-) by the negative pole of battery (Battery) at last.Like this, charge the battery by D.C. contactor (K1).
When D.C. contactor (K1) disconnects, because the existence of diode (D1), the cathode voltage of battery (Battery) is higher than Power+, so electric current is flow through the positive pole of diode (D1) by the positive pole of battery (Battery), negative pole from diode (D1) flows out an end that arrives load (L1) again, is got back to the negative pole of battery (Battery) again by the other end of load (L1).Like this, battery begins discharge.
When the outside has a power failure (Power=0), D.C. contactor (K1) closure, electric current flows through the 3rd contact (K1-3) of D.C. contactor K1, the 4th contact (K1-4) of D.C. contactor (K1), the negative pole that battery (Battery) got back in load (L1) by the positive pole of battery (Battery).Like this, battery begins discharge.
With reference to Fig. 2, the experimental waveform figure of embodiment of the present invention.Use 2 Battery packs to experimentize: A organizes not charged pool high-temperature charging protection control circuit; B group charged pool high-temperature charging protection control circuit.Before the experiment, detect 2 cell set capacities: the A cell set capacity is 54.7575 ampere-hours; The B cell set capacity is 50.7108 ampere-hours.2 Battery packs at high temperature charge, and behind 8 high-temperature chargings, detect 2 cell set capacities again: the A cell set capacity is 35.0325 ampere-hours; The B cell set capacity is 39.2908 ampere-hours.
Claims (1)
1. battery high-temperature charging protection control circuit; it is characterized in that: described battery high-temperature charging protection control circuit comprises diode (D1) and D.C. contactor (K1); described D.C. contactor comprises coil 1 pin; coil 2 pin; the 3rd contact and the 4th contact; the 4th contact of diode cathode (D1) and D.C. contactor (K1) connects positive source (Power+); the 3rd contact of diode cathode (D1) and D.C. contactor (K1) connects the positive pole of battery (Battery); coil 1 pin of D.C. contactor (K1) connects microcomputer control circuit output control signal (Signal), and coil 2 pin of D.C. contactor (K1) are connected with power cathode (Power-).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910262371A CN101714771A (en) | 2009-12-17 | 2009-12-17 | Battery high-temperature charging protection control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910262371A CN101714771A (en) | 2009-12-17 | 2009-12-17 | Battery high-temperature charging protection control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN101714771A true CN101714771A (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910262371A Pending CN101714771A (en) | 2009-12-17 | 2009-12-17 | Battery high-temperature charging protection control circuit |
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| CN (1) | CN101714771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130578A (en) * | 2011-01-11 | 2011-07-20 | 张太平 | Direct-current power supply containing storage battery feedback discharging loop |
| CN104502850A (en) * | 2014-12-12 | 2015-04-08 | 惠州Tcl移动通信有限公司 | Battery energy density detection method and system based on mobile terminal |
-
2009
- 2009-12-17 CN CN200910262371A patent/CN101714771A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130578A (en) * | 2011-01-11 | 2011-07-20 | 张太平 | Direct-current power supply containing storage battery feedback discharging loop |
| CN104502850A (en) * | 2014-12-12 | 2015-04-08 | 惠州Tcl移动通信有限公司 | Battery energy density detection method and system based on mobile terminal |
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Open date: 20100526 |