CN201113527Y - Accumulator charger output voltage autocompensation device - Google Patents
Accumulator charger output voltage autocompensation device Download PDFInfo
- Publication number
- CN201113527Y CN201113527Y CNU2007201287466U CN200720128746U CN201113527Y CN 201113527 Y CN201113527 Y CN 201113527Y CN U2007201287466 U CNU2007201287466 U CN U2007201287466U CN 200720128746 U CN200720128746 U CN 200720128746U CN 201113527 Y CN201113527 Y CN 201113527Y
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- battery
- charger
- resistance
- circuit
- charging voltage
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an automatic compensation device for the output voltage of a storage battery charger and solves the problems of the prior battery, such as high maintenance cost, complicated maintenance process, etc. The device consists of an operation controller, a charging voltage sampling circuit, a charging voltage over-voltage protective circuit, an even and float charging converting circuit, a charging voltage temperature compensation circuit and a battery temperature detecting circuit. The device can conveniently regulate the charging voltage, temperature compensation coefficient and other parameters according to charging characteristics of different storage batteries, make the management of a UPS battery truly realize maintenance free, effectively guarantee the service life of the storage battery, reduce the maintenance cost for a user, have strong practicality and good market prospect.
Description
Affiliated technical field
The utility model relates to a kind of charging device, specifically relates to a kind of battery charger output voltage autocompensation installation.
Background technology
Uninterrupted power supply (ups) Unity is to be used for providing device accurate, that stablize uninterrupted alternating current supply power equipment to AC load.The used battery of UPS uninterrupted power supply mainly adopts the plumbic acid maintenance-free battery, and batteries is the core component that uninterrupted power supply provides back-up source, and can the stability of batteries work be directly connected to whole ups system and stablize uninterrupted power supply is provided.Usually the battery pack of UPS adopts the mode of operation of floating charge; but because batteries produces electric power by chemical reaction; therefore relatively harsher to the requirement of ambient temperature; general recommendation service condition is 20～25 ℃ a environment; but a lot of applied environments can't reach so high requirement; particularly in outlying area or when under environment comparison harsh conditions such as wireless base station, needing to use the UPS uninterrupted power supply; at this moment the reliably working to batteries is exactly a kind of acid test; at this moment environmental condition usually can be between-40～+ 50 ℃; in the face of so common charger of environmental condition often can not guarantee charging to battery; can occur overcharging; the state owing to charge can appear; the life-span of storage battery just can't guarantee like this, can scrap in advance usually.
Operating characteristic according to storage battery; some relatively have the user of technical strength can arrange special attendant to come battery is safeguarded usually at present; their major part is adjusted the output of charger by manual adjustments; to guarantee charging to battery; they must the running audit battery pack; to safeguard, this method is truly feasible for the maintenance of storage battery, can reach certain effect.But because the maintenance cost of this method is very high, the maintenance process complexity is unpractical to the user of majority, therefore must have a kind of more easy method to realize charging to battery pack.
Summary of the invention
The purpose of this utility model is to provide a kind of novel, full-automatic battery charger output voltage autocompensation installation.
In order to achieve the above object, device of the present utility model is made up of following circuit: operation control, connect working power, and whether the output voltage and the judgement of control charger close battery charger; The charging voltage sample circuit is in series by two resistance, the output voltage of charger is carried out dividing potential drop, and carry out voltage sample, and connect a diode and an electric capacity, and diode plays the amplitude limit effect and prevents overvoltage damage MCU, and electric capacity strobes; The charging voltage overvoltage crowbar is in series by a resistance and an optocoupler, the Push And Release of control charger; All the floating charge change-over circuit is composed in series by two resistance and a switch, and the voltage difference of the equal floating charge of charger is set; The charging voltage temperature-compensation circuit is made up of two resistance and an electric capacity, regulates the output voltage of charger automatically; The battery temperature testing circuit is connected with a resistance by a temperature sensor and to be carried out dividing potential drop then through another resistance and a capacitor filtering, carries out temperature sampling, for operation control counting cell temperature.
Above-mentioned operation control can comprise a MCU control chip, as the kernel control chip of this device.The MCU control chip is by gathering the charging voltage of battery; judge that the current state of battery should all fill still floating charge; and the temperature of gathering battery simultaneously; by suitable calculating; according to suitable charge compensate coefficient; export one and follow the output voltage that signal that battery temperature is linear change removes to control charger; thereby reach the purpose of the charging voltage of automatic balancing battery; to judge also simultaneously whether the charging voltage of battery surpasses the safe charging voltage of battery; if exceeding also needs to protect, the output control signal is closed battery charger.
The beneficial effects of the utility model are, compared with prior art, the utility model has increased temperature detection signal on battery, the passable temperature of electrolytic cell, and by suitable coefficient adjustment, compensated owing to the influence of variations in temperature, guaranteed the useful life of battery greatly battery behavior.The utility model circuit has following characteristics:
(1) circuit is simple, and parameter adjustment is convenient, only need change software just can, cost is low;
(2) practical, can adapt to any form Switching Power Supply charger;
(3) stability is strong, can guarantee under various conditions the charger output voltage to be carried out linear compensation;
(4) adopt microcontroller to handle, intelligent degree is the developing direction of high frequency switch power than higher.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model control principle figure.
Among the figure: 1, operation control; 2, charging voltage sample circuit; 3, equal floating charge change-over circuit; 4, charging voltage overvoltage crowbar; 5, charging voltage temperature-compensation circuit; 6, battery temperature testing circuit.
Embodiment
As shown in Figure 1, the utility model is by operation control 1, charging voltage sample circuit; 2, equal floating charge change-over circuit; 3, charging voltage overvoltage crowbar; 4, charging voltage temperature-compensation circuit; 5, battery temperature testing circuit 6 is formed.
Above-mentioned operation control 1 can comprise a MCU control chip, as the kernel control chip of this device.The MCU control chip is by gathering the charging voltage of battery; judge that the current state of battery should all fill still floating charge; and the temperature of gathering battery simultaneously; by suitable calculating; according to suitable charge compensate coefficient; export one and follow the output voltage that signal that battery temperature is linear change removes to control charger; thereby reach the purpose of the charging voltage of automatic balancing battery; to judge also simultaneously whether the charging voltage of battery surpasses the safe charging voltage of battery; if exceeding also needs to protect, the output control signal is closed battery charger.
Described MCU control chip is so long as include I/O (I/O) mouthful, have the microcontroller chip of A/D mouth to realize.
Above-mentioned charging voltage sample circuit 2 is made up of resistance R 20 and resistance R 29, and he carries out dividing potential drop to the output voltage V-CHG of charger, delivers to the A/D sampling AD1 of MCU control chip then, carries out voltage sample.Diode D10 plays the amplitude limit effect and prevents overvoltage damage MCU, and capacitor C 18 strobes;
Above-mentioned equal floating charge change-over circuit 3 is made up of resistance R 66, resistance R 67, switch Q4, resistance R 66 is connected to charger output voltage adjustment end VREF, the MCU control chip is according to the battery charging voltage that collects, judge the state of equal floating charge, I/O mouth PTA3 from the MCU control chip exports control signal then, by the Push And Release of resistance R 67 control switch Q4, the resistance of adjusting resistance R 66 just can be provided with the voltage difference of the equal floating charge of charger.
Above-mentioned charging voltage overvoltage crowbar 4 is made up of resistance R 69 and optocoupler IC8; the VP signal of optocoupler IC8 is as the switch of charger; the MCU control chip is according to the charging voltage that collects; whether the charging voltage of judging battery is at the charge voltage range of safety; if exceed the I/O mouth PTA2 output control signal of then passing through the CUP control chip; control opening and closing of optocoupler IC8 by resistance R 69, thus the Push And Release of control charger.
Above-mentioned charging voltage temperature-compensation circuit 5 is by resistance R 52, resistance R 53 and capacitor C 19 are formed, MCU exports suitable bucking voltage according to the temperature of battery by calculating, I/O mouth PTAO output by the MCU control chip, what exported this moment is pwm signal, this is a digital signal, must be converted into direct current signal, through resistance R 53, pwm signal just becomes direct current signal behind the filter circuit of capacitor C 19, the output voltage feedback compensation terminal of receiving charger by R52 just can be regulated the output voltage of charger automatically again, by the resistance that changes R53 different voltage regulation coefficients can be set.
Above-mentioned battery temperature testing circuit 6 is made up of temperature sensor R27, resistance R 28, resistance R 28A, capacitor C 17, temperature sensor R27 is installed on battery surface, detect battery temperature from battery, its resistance can change with variation of temperature, by carrying out dividing potential drop with resistance R 28, again through sending the A/D mouth of MCU control chip to carry out temperature sampling after resistance R 28A and capacitor C 17 filtering, for the temperature of MCU control chip counting cell.
The 1st pin of MCU control chip connects working power VDD, C16 is as the bypass filter capacitor, when the charger operate as normal, resistance R 20 in the charging voltage sample circuit 2 meets cell voltage V-CHG and carries out dividing potential drop with resistance R 29, the 2nd pin of then voltage signal that samples being delivered to the MCU control chip carries out A/D conversion, the charging voltage of counting cell; The MCU control chip is according to pre-set coefficient, and the state that comes the comparison charger is that charge mode still is the floating charge pattern, and with PTA3 delivery outlet (3. pin) output of signal by the MCU control chip, delivers to equal floating charge change-over circuit 3; And the MCU control chip will judge also simultaneously whether the charging voltage of battery surpasses the maximum charging voltage that battery allows, send guard signal if exceed the charging voltage overvoltage crowbar of then forming 4 by resistance R 69 and optocoupler IC8, the purpose of protecting battery is played in the output of charge closing device; Temperature sensor R27 is installed on the surface of battery, detect battery temperature from battery, when battery temperature changed, the level of R27, R28 tie point can change, and signal is passed to the AD2 input port (6. pin) of MCU control chip by resistance R 28A, carry out the A/D conversion Calculation; The MCU control chip converts the temperature of battery to the PWM digital signal of correspondence by PTAO delivery outlet (7. pin) according to pre-set penalty coefficient then, export connecting resistance R53 and carry out filtering and form direct voltage with capacitor C 19, the error amplifier of being delivered to the AC/DC conversion feedback end of charger by resistance R 52 participates in adjusting the control of charging voltage, reaches battery is compensated purpose.
The AC/DC converter of charger circuit is made up of various high-frequency AC/DC Switching Power Supply translation circuit, can be isolated form also can be non-isolation type; The detection of battery temperature and cell voltage is to be finished by a functional circuit A/D sample circuit of MCU inside.
Claims (2)
1. battery charger output voltage autocompensation installation comprises:
Operation control (1) connects working power, and whether the output voltage and the judgement of control charger close battery charger;
Charging voltage sample circuit (2) is in series by two resistance, the output voltage of charger is carried out dividing potential drop, and carry out voltage sample, and connect a diode and an electric capacity, and diode plays the amplitude limit effect and prevents overvoltage damage MCU, and electric capacity strobes;
Charging voltage overvoltage crowbar (4) is in series by a resistance and an optocoupler, the Push And Release of control charger;
It is characterized in that, also comprise following circuit:
All floating charge change-over circuit (3) is composed in series by two resistance and a switch, and the voltage difference of the equal floating charge of charger is set;
Charging voltage temperature-compensation circuit (5) is made up of two resistance and an electric capacity, regulates the output voltage of charger automatically;
Battery temperature testing circuit (6) is connected with a resistance by a temperature sensor and to be carried out dividing potential drop then through another resistance and a capacitor filtering, carries out temperature sampling, for operation control counting cell temperature.
2. operation control according to claim 1 (1) can comprise a MCU control chip, as the kernel control chip of this device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201287466U CN201113527Y (en) | 2007-08-14 | 2007-08-14 | Accumulator charger output voltage autocompensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201287466U CN201113527Y (en) | 2007-08-14 | 2007-08-14 | Accumulator charger output voltage autocompensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113527Y true CN201113527Y (en) | 2008-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201287466U Expired - Lifetime CN201113527Y (en) | 2007-08-14 | 2007-08-14 | Accumulator charger output voltage autocompensation device |
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| CN (1) | CN201113527Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545337A (en) * | 2012-01-20 | 2012-07-04 | 张家港市华为电子有限公司 | Temperature compensation method in charging process of storage battery |
| CN102570553A (en) * | 2012-01-20 | 2012-07-11 | 张家港市华为电子有限公司 | Temperature compensation method in process of charging storage battery |
| CN101750164B (en) * | 2009-09-08 | 2013-04-24 | 杭州勇华车业有限公司 | Temperature compensation detection circuit of electromobile battery charger |
| CN104167571A (en) * | 2014-07-24 | 2014-11-26 | 超威电源有限公司 | Lead-acid storage battery charger charging technology for electric car |
| CN108365668A (en) * | 2018-04-26 | 2018-08-03 | 苏州利茂电气科技有限公司 | It is a kind of that charger voltage output device is adjusted according to environment temperature |
| CN116435634A (en) * | 2023-06-14 | 2023-07-14 | 深圳市泰昂能源科技股份有限公司 | Storage battery temperature state monitoring and management system |
-
2007
- 2007-08-14 CN CNU2007201287466U patent/CN201113527Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750164B (en) * | 2009-09-08 | 2013-04-24 | 杭州勇华车业有限公司 | Temperature compensation detection circuit of electromobile battery charger |
| CN102545337A (en) * | 2012-01-20 | 2012-07-04 | 张家港市华为电子有限公司 | Temperature compensation method in charging process of storage battery |
| CN102570553A (en) * | 2012-01-20 | 2012-07-11 | 张家港市华为电子有限公司 | Temperature compensation method in process of charging storage battery |
| CN102570553B (en) * | 2012-01-20 | 2014-04-30 | 张家港市华为电子有限公司 | Temperature compensation method in process of charging storage battery |
| CN104167571A (en) * | 2014-07-24 | 2014-11-26 | 超威电源有限公司 | Lead-acid storage battery charger charging technology for electric car |
| CN108365668A (en) * | 2018-04-26 | 2018-08-03 | 苏州利茂电气科技有限公司 | It is a kind of that charger voltage output device is adjusted according to environment temperature |
| CN116435634A (en) * | 2023-06-14 | 2023-07-14 | 深圳市泰昂能源科技股份有限公司 | Storage battery temperature state monitoring and management system |
| CN116435634B (en) * | 2023-06-14 | 2023-09-05 | 深圳市泰昂能源科技股份有限公司 | Storage battery temperature state monitoring and management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |