CN201531755U - LED rechargeable flashlight with charging indication and protection - Google Patents
LED rechargeable flashlight with charging indication and protection Download PDFInfo
- Publication number
- CN201531755U CN201531755U CN2009202368008U CN200920236800U CN201531755U CN 201531755 U CN201531755 U CN 201531755U CN 2009202368008 U CN2009202368008 U CN 2009202368008U CN 200920236800 U CN200920236800 U CN 200920236800U CN 201531755 U CN201531755 U CN 201531755U
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- led
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- battery
- power supply
- triode
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an LED rechargeable flashlight with charging indication and protection. An LED lighting lamp is connected with a battery charging circuit board which is connected with a rechargeable battery and connected and provided with an LED power supply indicator light and an LED power supply fully-charging indicator light; the battery charging circuit board is provided with a constant voltage protection circuit and a current indication circuit; a power supply is connected with a bridge rectifier D1 by a capacitor C1; the bridge rectifier D1 is connected with a triode Q1, a voltage-stabilizing diode DZ1, a resistor R4 and a resistor R5 in the constant voltage protection circuit in parallel; a resistor R8 in the current indication circuit is connected with a diode D2 in series; and a light-emitting diode LED2, a resistor R6 and a resistor R7 are connected in parallel and then coupled at a triode Q2 which is connected with a resistor R9. The device can lead the battery to avoid safety potential hazard caused by passive overcharging during the charging process, lead a customer to initiatively judge whether the battery is charged fully by the indication of a battery fully-charging indicator light, thus being convenient for use.
Description
Technical field
The utility model relates to lighting device, specifically refers to a kind of chargeable electric torch that possesses charging indication and constant voltage defencive function.
Background technology
The LED chargeable electric torch that generally uses has only power supply to insert indicating circuit and indicator lamp in charging process in the market, do not design the constant voltage holding circuit, can not form the trickle charge that progressively reduces and stop charging device automatically, rechargeable battery must form passively and overcharge, cause battery bulging, blast to occur easily and in the dead of night wait unsafe factor, battery shortens service life; And the LED chargeable electric torch of producing and selling on the market is full of indicating lamp device owing to battery is not set, and the consumer can't judge when battery is full of in the flashlight charging process, cause battery constantly in charging, causes the inconvenience in the use.
Summary of the invention
For solving the technical deficiency of existing flashlight, the utility model proposes the band charging indication of a kind of modern design, easy to use, processing ease and the LED chargeable electric torch of protection, by charge protector being set and battery is full of indicator lamp, the consumer no longer needs to calculate the charging interval and carries out fuzzy Judgment in the flashlight charging process, but can initiatively judge whether to be full of, when battery was full of, flash-light battery is full of indicator lamp to be lighted automatically, the convenient use; And avoided passive overcharging in charging process and cause potential safety hazard, avoid battery explosion, bulging and in the dead of night wait dangerous influence, reach the effect of protection battery overcharge and extending battery life.
For achieving the above object; the utility model is achieved by the following technical programs: the LED chargeable electric torch of band charging indication and protection includes the flashlight housing; ac plug; the LED illuminating lamp; the LED lighting circuit plate that joins with the LED illuminating lamp; reflector; toggle switch; described LED illuminating lamp is connected with the battery charger plate; the battery charger plate connects rechargeable battery; the battery charger plate is connected to the LED power supply indicator and the LED power supply is full of indicator lamp; described battery charger plate is provided with constant voltage holding circuit and electric current indicating circuit; power supply joins with bridge heap D1 through capacitor C 1; triode Q1 in bridge heap D1 and the constant voltage holding circuit; Zener diode DZ1; resistance R 4; be connected after resistance R 5 parallel connections; the electric current indicating circuit comprises triode Q2; diode D2; LED 2; resistance R 6; resistance R 7; resistance R 8; resistance R 9; resistance R 8 is connected with diode D2; LED 2 series resistance R6; LED 2; be coupled in triode Q2, triode Q2 series resistance R9 after resistance R 6 and resistance R 7 are in parallel.
The further technical measures of the utility model are that described LED power supply indicator and LED power supply are full of sidewall or bottom or the top that indicator lamp is arranged at the flashlight housing.
Compared with prior art, the utlity model has following technique effect:
1, avoids battery in charging process, to overcharge passively, prevented that the various person and property unsafe factor from taking place.
2, be full of indicator lamp by battery, the consumer initiatively judged be not full of electricity and be full of electricity, make things convenient for consumer's use.
3, effectively prolong the service life of rechargeable battery.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structure cut-away view of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Among the figure: 1, housing; 2, ac plug, 3, the LED illuminating lamp, 4, LED lighting circuit plate; 5, reflector; 6, toggle switch, 7, the battery charger plate, 8, rechargeable battery; 9, LED power supply indicator; 10, the LED power supply is full of indicator lamp, and 11, the constant voltage holding circuit, 12, the electric current indicating circuit.
The specific embodiment
As shown in Figure 1; the LED chargeable electric torch of this band charging indication and protection has a flashlight housing 1; one ac plug 2; one LED illuminating lamp 3; the one LED lighting circuit plate 4 that joins with the LED illuminating lamp; the reflector 5 of one ring cover LED illuminating lamp 3; one toggle switch 6; LED illuminating lamp 3 is connected with battery charger plate 7; battery charger plate 7 is connected with rechargeable battery 8; battery charger plate 7 is connected with red LED power supply indicator 9 and the green LED power supply is full of indicator lamp 10, and LED power supply indicator 9 is full of indicator lamp 10 designs on the sidewall of flashlight housing 1 with the LED power supply.
As shown in Figure 2; this flashlight circuit board is provided with constant voltage holding circuit 11 and electric current indicating circuit 12; power supply joins with bridge heap D1 through capacitor C 1; triode Q1 in bridge heap D1 and the constant voltage holding circuit 11; Zener diode DZ1; resistance R 4; be connected after resistance R 5 parallel connections; electric current indicating circuit 12 is by triode Q2; diode D2; LED 2; resistance R 6; resistance R 7; resistance R 8; resistance R 9 is formed; wherein resistance R 8 is connected with diode D2; LED 2 series resistance R6; LED 2; be coupled in triode Q2, triode Q2 series resistance R9 after resistance R 6 and resistance R 7 are in parallel.
When the internal circuit of this LED chargeable electric torch is worked, the 220V civil power is after capacitor C 1 step-down, through bridge heap D1 rectification, form shunt regulating circuit by triode Q1, Zener diode DZ1, resistance R 4, resistance R 5, make voltage be stabilized in 5.3V, 5.3V voltage voltage behind diode D2 is reduced to 4.6V, and the 4V lead-acid battery is carried out constant-voltage charge; Form electric current indicating circuit 12 by triode Q2, diode D2, LED 2, resistance R 6, resistance R 7, resistance R 8, resistance R 9.In the battery charging process, electric current on the resistance R 8 diminishes, when battery is charged to about 4.6V, electric current on the resistance R 8 is little of 15mAh, and by the amplification of triode Q2, diode (LED) 2 both end voltage differences are greater than 1.8V, diode (LED) 2 is lighted, pilot cell is full of, and should stop charging, and circuit enters trickle charge.When cell voltage finally was charged to 4.6V, this circuit can stop charging automatically, thereby the protection battery prevents that overcharging from appearring in battery.
The utility model includes but not limited to that the foregoing description lifts, and the structure of any effects equivalent based on the conversion of the technical program institute all belongs to protection domain of the present utility model.
Claims (2)
1. LED chargeable electric torch with charging indication and protection; comprise the flashlight housing; ac plug; the LED illuminating lamp; the LED lighting circuit plate that joins with the LED illuminating lamp; reflector; toggle switch; described LED illuminating lamp is connected with the battery charger plate; the battery charger plate connects rechargeable battery; it is characterized in that: described battery charger plate is connected with the LED power supply indicator and the LED power supply is full of indicator lamp; described battery charger plate is provided with constant voltage holding circuit and electric current indicating circuit; power supply joins with bridge heap D1 through capacitor C 1; triode Q1 in bridge heap D1 and the constant voltage holding circuit; Zener diode DZ1; resistance R 4; be connected after resistance R 5 parallel connections; the electric current indicating circuit comprises triode Q2; diode D2; LED 2; resistance R 6; resistance R 7; resistance R 8; resistance R 9; resistance R 8 is connected with diode D2; LED 2 series resistance R6; LED 2; be coupled in triode Q2, triode Q2 series resistance R9 after resistance R 6 and resistance R 7 are in parallel.
2. the LED chargeable electric torch of band charging indication according to claim 1 and protection, it is characterized in that: described LED power supply indicator and LED power supply are full of sidewall or bottom or the top that indicator lamp is arranged at the flashlight housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202368008U CN201531755U (en) | 2009-10-09 | 2009-10-09 | LED rechargeable flashlight with charging indication and protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202368008U CN201531755U (en) | 2009-10-09 | 2009-10-09 | LED rechargeable flashlight with charging indication and protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531755U true CN201531755U (en) | 2010-07-21 |
Family
ID=42527159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202368008U Expired - Fee Related CN201531755U (en) | 2009-10-09 | 2009-10-09 | LED rechargeable flashlight with charging indication and protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531755U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679172A (en) * | 2012-05-30 | 2012-09-19 | 苏州昆仑工业设计有限公司 | Flashlight with mosquito expelling efficacy |
| CN103944242A (en) * | 2013-01-17 | 2014-07-23 | 株式会社田村制作所 | Charging apparatus for secondary battery |
| CN105007645A (en) * | 2015-07-29 | 2015-10-28 | 黄鹂 | High-power single lamp bead or COB mobile LED stall lamp |
| CN105072788A (en) * | 2015-07-18 | 2015-11-18 | 黄鹂 | Illumination and emergency dual-purpose LED lamp prevented from overcharging and over-discharging |
-
2009
- 2009-10-09 CN CN2009202368008U patent/CN201531755U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679172A (en) * | 2012-05-30 | 2012-09-19 | 苏州昆仑工业设计有限公司 | Flashlight with mosquito expelling efficacy |
| CN103944242A (en) * | 2013-01-17 | 2014-07-23 | 株式会社田村制作所 | Charging apparatus for secondary battery |
| CN103944242B (en) * | 2013-01-17 | 2017-03-01 | 株式会社田村制作所 | The charging device of secondary cell |
| CN105072788A (en) * | 2015-07-18 | 2015-11-18 | 黄鹂 | Illumination and emergency dual-purpose LED lamp prevented from overcharging and over-discharging |
| CN105007645A (en) * | 2015-07-29 | 2015-10-28 | 黄鹂 | High-power single lamp bead or COB mobile LED stall lamp |
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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: 20100721 Termination date: 20121009 |