CN2265619Y - High-efficiency automatic charger for nickel-hydrogen single battery - Google Patents
High-efficiency automatic charger for nickel-hydrogen single battery Download PDFInfo
- Publication number
- CN2265619Y CN2265619Y CN 95237566 CN95237566U CN2265619Y CN 2265619 Y CN2265619 Y CN 2265619Y CN 95237566 CN95237566 CN 95237566 CN 95237566 U CN95237566 U CN 95237566U CN 2265619 Y CN2265619 Y CN 2265619Y
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- circuit
- charging
- output
- single battery
- nickel
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a high-efficiency automatic charger for a nickel-hydrogen single battery. The utility model is characterized in that through a temperature-controlling switch, one end of an output terminal of a loop of a two-way rectification power source is connected in series with a charging indicating circuit; the charging indicating circuit is connected with one end of a voltage-stabilizing integrated module with three adjustable terminals to form regulation of the power source; the output terminal of the charging indicating circuit is respectively connected with a voltage dividing/sampling circuit, a detecting and controlling circuit and a voltage peak weakening circuit; another loop is connected with a circuit with the same circuit philosophy and with the difference that an adjustable voltage stabilizing circuit is composed of transistors instead of the integrated module, so that the circuit is simpler and the cost is lower. The charger can be used for charging the nickel-hydrogen single battery, a nickel-cadmium single battery and an alkaline single battery.
Description
The utility model relates to a kind of electrical equipment that cell is charged, and especially is suitable for Ni-MH battery, also can charge automatically to nickel-cadmium cell, alkaline battery.
Existing charger generally adopts constant pressure type charging, constant current mode charging, pulse charging, circuit structure complexity not only, and the pulsed that has also needs discharge to its battery after charging again, and the charging voltage height, and the charging interval is also very long, and cost is also higher.
With regard to its charging technique, still be in stage at present basically to the nickel-cadmium cell charging.Because nickel-cadmium cell has certain toxicity, (cd) is one of factor of bringing out hyperosteogeny diseases because of its cadmium, so the gesture that the existing restriction in various countries, the world is used or banned use of.The Ni-MH battery that is called as green battery has the gesture that replaces nickel-cadmium cell greatly.But, its charging technique also there is the improved place of many needs because the time that Ni-MH battery comes out is short.
The purpose of this utility model provides that a kind of electric circuit construction is simple, and charging voltage is lower, and the charging interval is short, ni-mh cell automatic charger with low cost.
For achieving the above object, the utility model is that the end at the output in a loop with dc rectification power is connected in series a charging indication 1 through a temperature detect switch (TDS) TC1, this circuit connects with the end of one the three adjustable integrated package of pressure-stabilizing IC1 of end, is connected to pressure sampling circuit 2, Detection ﹠ Controling circuit 3, sharpening peak potential circuit 4 respectively at this IC1 output; Be linked to the collector electrode of transistor BG2 at an end of the output in another loop of rectifier power source through a temperature detect switch (TDS) TC2, be connected to pressure sampling circuit 5, be connected to charging indication 6, testing circuit 7 respectively at output in the base stage of this BG2.
The utility model has following advantage:
1, charging process is divided into three phases after tested: (1) initial charge, and 0.6～1.0 times of battery nominal capacity electric current carries out activating charge; (2) charging, 0.6～0.12 times of battery nominal capacity electric current carries out the substance charging; (3) in the charging later stage, 0.1～0.08 times battery nominal capacity electric current is kept charging.This three phases is continuous automatically, and its charging process is similar to stacked items, so claim " stacking-type " charging.This charging modes efficient is higher, and the charging interval shortens dramatically, and generally only needs 3～6 hours.
2, Chong Dian floating voltage only exceeds 15% than the threshold voltage of rechargeable battery, also is provided with temperature detect switch (TDS), for safe charging has been created condition.
3, rechargeable battery is carried out monomer charging, overcome because the easy inconsistent shortcoming of generation full level when serial connection charge that the discreteness of the parameter of battery own exists; When parallel connection, interfere with each other and restrict the deficiency that causes void to be filled between the battery.
4, circuit structure is fairly simple, make easily, and the range of application literary composition, cost is lower, has popularizing application prospect.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model circuit theory diagrams.
In Fig. 1. what be that core parts constitute one of charging circuit with the adjustable integrated package of pressure-stabilizing IC1 of three ends (LM317) is to be connected to transformer B respectively in the importation of IC1, full bridge rectifier D1～D4, temperature detect switch (TDS) TC1, power supply indication LED 1 and by resistance R 2, R3, diode D5, D6, the charging indication that LED 2 constitutes: the output at IC1 is connected to respectively by resistance R 4, R5, capacitor C 3, the pressure sampling circuit that diode D8 constitutes, by diode D9, resistance R 12, potentiometer W1, the Detection ﹠ Controling circuit that transistor BG1 (9013) constitutes is by D9, D10, the sharpening peak potential circuit that D11 constitutes.
When connecting alternating current 220V, charging circuit is started working, and indicator light LED1, LED2 are bright, and power supply after diode D7 isolates, carries out the pressure limiting charging at A, B end output dc voltage (maximum current Imax=0.86A) to rechargeable battery one joint through the IC1 voltage stabilizing.When cell voltage was charged near rated voltage, charging current reduced to and keeps charging about 80mA.When charging current is about 30mA, charging indicator light LED2 extinguishes.Along with the increase in charging interval, then the BG1 base potential of Detection ﹠ Controling circuit also increases gradually, thereby collector potential is descended, and by pressure sampling circuit the output voltage of IC1 is also descended, thereby reaches the purpose of automatic adjustment and control.
Sharpening peak potential circuit is to be attempted by output terminals A, B, is no more than 2.3V in order to the peak limiting maximum voltage.Vibrationproof electric capacity in the circuit is C2, C4, in order to guarantee the operate as normal of IC1.TC1 is normally closed temperature detect switch (TDS), and when the charging temperature of battery surpassed 60 ℃, the circuit of cutting off the electricity supply automatically was to guarantee the safety of charging and to prevent the phenomenon that rechargeable battery bursts.
Another charging circuit is that core parts constitute with transistor BG2 (D880), and different is to constitute variable voltage stabilizing circuit replacement IC1 with BG2 with above-mentioned charging circuit for it.Its objective is that to make circuit structure simpler, cost is cheaper, and only the charging circuit that constitutes than IC1 aspect charging performance is not good enough slightly.
The pressure sampling circuit of this charging circuit is made of BG3 (9013), resistance R 6, R7, R13, capacitor C 6, and BG2 is the adjustment pipe of voltage stabilizing circuit, and testing circuit is made of BG3, resistance R 10, potentiometer W2, and is connected to output C, D.When charging circuit was worked, its C, D end output voltage (maximum current Imax=0.38A) can charge to the battery of 1.2V～1.5V or alkaline battery one joint of certain model.When the voltage increases of rechargeable battery, the BG3 collector current of testing circuit increases, and then adjusts pipe BG2 base voltage and descends, and causes the BG2 collector voltage to descend, thereby plays the purpose of automatic adjustment control.
With LED 3 is the main charging indication that constitutes, and in like manner, when charging current was about 30mA, LED3 extinguished.Also but a little plays the effect of sharpening peak potential circuit to this indicating circuit.Temperature detect switch (TDS) TC2 and above-mentioned TC1 are identical.
Two kinds of charging circuits of the present utility model also can be combined into three kinds of series of products respectively according to situations such as cost, performances, the material of its circuit and components and parts all have sale on general market, only need suitable cabinet, the circuit board of configuration just to be easy to implement in general manufacturer's operation.
Claims (3)
1, a kind of efficient ni-mh cell automatic charger, mainly the electronic circuit that is matched by dc rectification power, integrated package and discrete component is formed, it is characterized in that being connected in series a charging indication (1) through a temperature detect switch (TDS) TC1 at an end of the output in a loop of rectifier power source, this circuit connects with the end of the adjustable integrated package of pressure-stabilizing IC1 of one or three ends, is connected to pressure sampling circuit (2) Detection ﹠ Controling circuit (3), sharpening cutting edge of a knife or a sword potential circuit (4) respectively at this IC1 output; Be linked to the collector electrode of transistor BG2 at an end of the output in another loop of rectifier power source through a temperature detect switch (TDS) TC2, be connected to pressure sampling circuit (5), be connected to charging indication (6), testing circuit (7) respectively at output in the base stage of this BG2.
2, charger according to claim 1, it is characterized in that described Detection ﹠ Controling circuit (3) is made of transistor BG1, diode D9, resistance R 12, potentiometer W1, wherein diode D9 is connected in series with D10, D11 again and constitutes sharpening peak potential circuit (4), and is connected to output terminals A, B.
3, charger according to claim 1 is characterized in that described testing circuit (7) is made of transistor BG3, potentiometer W2, resistance R 10, and is connected to output C, D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237566 CN2265619Y (en) | 1995-09-05 | 1995-09-05 | High-efficiency automatic charger for nickel-hydrogen single battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237566 CN2265619Y (en) | 1995-09-05 | 1995-09-05 | High-efficiency automatic charger for nickel-hydrogen single battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2265619Y true CN2265619Y (en) | 1997-10-22 |
Family
ID=33880246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95237566 Expired - Fee Related CN2265619Y (en) | 1995-09-05 | 1995-09-05 | High-efficiency automatic charger for nickel-hydrogen single battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2265619Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969757A (en) * | 2012-11-08 | 2013-03-13 | 中国电器科学研究院有限公司 | Micro-current constant voltage device |
-
1995
- 1995-09-05 CN CN 95237566 patent/CN2265619Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969757A (en) * | 2012-11-08 | 2013-03-13 | 中国电器科学研究院有限公司 | Micro-current constant voltage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |