CN204785612U - Solar energy LED flashlight - Google Patents
Solar energy LED flashlight Download PDFInfo
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- CN204785612U CN204785612U CN201520375164.2U CN201520375164U CN204785612U CN 204785612 U CN204785612 U CN 204785612U CN 201520375164 U CN201520375164 U CN 201520375164U CN 204785612 U CN204785612 U CN 204785612U
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Abstract
The utility model discloses a solar energy LED flashlight, including solar cell panel, resistance R1, triode Q1, diode D1, diode D4 and diode ZD1, it is anodal that diode D4 is connected to solar cell panel one end, and storage battery E positive pole, resistance R1, triode Q4 projecting pole, diode D1 negative pole and emitting diode LED1 are connected respectively to diode D4 negative pole, the storage battery E negative pole connection solar cell panel other end and ground connection, the emitting diode LED1 negative pole passes through resistance R7 and connects triode Q3 collecting electrode, triode Q3 emitter ground. The utility model discloses solar energy LED flashlight circuit structure is simple, and is small, and stability is high, and is with low costs, adds the solar charging function moreover, especially adapted using widely.
Description
Technical field
The utility model relates to a kind of LED flashlight, specifically a kind of solar LED flashlight.
Background technology
Along with the portable equipments such as mobile phone are all equipped with flashlight function, the concerned degree of traditional flashlight is more and more lower, and the most volume of existing flashlight is comparatively large, carry inconvenience, and stability is not high, often there will be fault.
Utility model content
The purpose of this utility model is to provide the solar LED flashlight that a kind of volume is little, stability is high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of solar LED flashlight, comprises solar panel, resistance R1, triode Q1, diode D1, diode D4 and diode ZD1, described solar panel one end connects diode D4 positive pole, and diode D4 negative pole connects batteries E positive pole respectively, resistance R1, triode Q4 emitter stage, diode D1 negative pole and LED 1, batteries E negative pole connects the solar panel other end and ground connection, described LED 1 negative pole is by resistance R7 connecting triode Q3 colelctor electrode, triode Q3 grounded emitter, triode Q3 base stage connects earth resistance R5 and resistance R6 respectively, the resistance R6 other end is connecting triode Q4 colelctor electrode and diode ZD1 negative pole respectively, and triode Q4 base stage connects diode D2 negative pole respectively, the resistance R1 other end, resistance R2 and triode Q4 base stage, diode D2 cathode connecting diode D1 positive pole, the described resistance R2 other end connects key switch SW respectively, electric capacity C1 and resistance R3, the key switch SW other end connects diode D3 negative pole respectively, triode Q1 base stage, electric capacity C2 and resistance R4, diode D3 cathode connecting diode ZD1 positive pole, the described electric capacity C1 other end is the contact resistance R4 other end respectively, the electric capacity C2 other end and triode Q1 emitter stage ground connection, triode Q1 colelctor electrode contact resistance R3.
As the utility model further scheme: described diode ZD1 is Zener diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model solar LED flashlight circuit structure is simple, and volume is little, and stability is high, and cost is low, and adds function of solar charging, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of solar LED flashlight.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of solar LED flashlight, comprises solar panel, resistance R1, triode Q1, diode D1, diode D4 and diode ZD1, solar panel one end connects diode D4 positive pole, and diode D4 negative pole connects batteries E positive pole respectively, resistance R1, triode Q4 emitter stage, diode D1 negative pole and LED 1, batteries E negative pole connects the solar panel other end and ground connection, LED 1 negative pole is by resistance R7 connecting triode Q3 colelctor electrode, triode Q3 grounded emitter, triode Q3 base stage connects earth resistance R5 and resistance R6 respectively, the resistance R6 other end is connecting triode Q4 colelctor electrode and diode ZD1 negative pole respectively, and triode Q4 base stage connects diode D2 negative pole respectively, the resistance R1 other end, resistance R2 and triode Q4 base stage, diode D2 cathode connecting diode D1 positive pole, the resistance R2 other end connects key switch SW respectively, electric capacity C1 and resistance R3, the key switch SW other end connects diode D3 negative pole respectively, triode Q1 base stage, electric capacity C2 and resistance R4, diode D3 cathode connecting diode ZD1 positive pole, the electric capacity C1 other end is the contact resistance R4 other end respectively, the electric capacity C2 other end and triode Q1 emitter stage ground connection, triode Q1 colelctor electrode contact resistance R3.
Diode ZD1 is Zener diode.
Operation principle of the present utility model is: refer to Fig. 1, when usual lamp does not work: electric capacity C1 passes through R1 by batteries E, R2, R3 charges, now LED 1 does not work as holding state, then unclamp when pressing SW during use, the positive pole of electric capacity C1 is shorted to the base stage pole of triode Q1, and the negative pole of electric capacity C1 connects the emitter stage pole of triode Q1, because electric capacity C1 both end voltage can not be suddenlyd change, therefore triode Q1 enters saturation state very soon, after triode Q1 is saturated, its collector potential is almost 0V, supply voltage is then by resistance R1, the dividing potential drop of resistance R2 adds to the base stage pole of Q4, triode Q4 is rapid saturation conduction also, the collector potential of triode Q4 is made to be almost batteries E both end voltage, it produces two effects: one is make diode ZD1 reverse breakdown, diode D3 forward conduction, residual voltage adds to the base stage of triode Q1 afterwards, triode Q1 is made to remain saturated, realize self-insurance, two is this voltage through the dividing potential drop of resistance R6 and resistance R5 adds to the base stage of triode Q3, makes triode Q3 also saturation conduction, so high-brightness LED has electric current to flow through and luminous, LED 1 starts illumination.
The utility model circuit also adds solar panel in addition, can be battery charging, promotes flying power.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (2)
1. a solar LED flashlight, comprises solar panel, resistance R1, triode Q1, diode D1, diode D4 and diode ZD1, is characterized in that, described solar panel one end connects diode D4 positive pole, and diode D4 negative pole connects batteries E positive pole respectively, resistance R1, triode Q4 emitter stage, diode D1 negative pole and LED 1, batteries E negative pole connects the solar panel other end and ground connection, described LED 1 negative pole is by resistance R7 connecting triode Q3 colelctor electrode, triode Q3 grounded emitter, triode Q3 base stage connects earth resistance R5 and resistance R6 respectively, the resistance R6 other end is connecting triode Q4 colelctor electrode and diode ZD1 negative pole respectively, and triode Q4 base stage connects diode D2 negative pole respectively, the resistance R1 other end, resistance R2 and triode Q4 base stage, diode D2 cathode connecting diode D1 positive pole, the described resistance R2 other end connects key switch SW respectively, electric capacity C1 and resistance R3, the key switch SW other end connects diode D3 negative pole respectively, triode Q1 base stage, electric capacity C2 and resistance R4, diode D3 cathode connecting diode ZD1 positive pole, the described electric capacity C1 other end is the contact resistance R4 other end respectively, the electric capacity C2 other end and triode Q1 emitter stage ground connection, triode Q1 colelctor electrode contact resistance R3.
2. solar LED flashlight according to claim 1, is characterized in that, described diode ZD1 is Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520375164.2U CN204785612U (en) | 2015-06-02 | 2015-06-02 | Solar energy LED flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520375164.2U CN204785612U (en) | 2015-06-02 | 2015-06-02 | Solar energy LED flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204785612U true CN204785612U (en) | 2015-11-18 |
Family
ID=54525660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520375164.2U Expired - Fee Related CN204785612U (en) | 2015-06-02 | 2015-06-02 | Solar energy LED flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204785612U (en) |
-
2015
- 2015-06-02 CN CN201520375164.2U patent/CN204785612U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |