CN204929331U - Light -operated LED emergency light - Google Patents
Light -operated LED emergency light Download PDFInfo
- Publication number
- CN204929331U CN204929331U CN201520555028.1U CN201520555028U CN204929331U CN 204929331 U CN204929331 U CN 204929331U CN 201520555028 U CN201520555028 U CN 201520555028U CN 204929331 U CN204929331 U CN 204929331U
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- China
- Prior art keywords
- resistance
- triode
- diode
- light
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a light -operated LED emergency light, including triode V1, triode V2, rectifier bridge T and resistance R1, electric capacity C1 and 220V alternating current are connected to resistance R1's one end, and electric capacity C1's the other end and rectifier bridge T's port 1 are connected to resistance R1's the other end, the other ends of rectifier bridge T's 3 connection 220V alternating currents of port, rectifier bridge T's 2 connection electric capacity C3 of port, resistance R2, diode D3's positive pole and diode D4's positive pole. The utility model discloses LED supply circuit has abandoned the transformer, adopts the capacitor step -down structure, very big reduction the volume and the weight of circuit to alleviate the weight of hanging at the wall, set up light control module at the power end simultaneously, only at not enough light and just can open the emergency light under the condition of cutting off the power supply, still set up hand switch, consequently have the advantage that the cost of manufacture is low, practice thrift electric energy, practical convenience and simple structure.
Description
Technical field
The utility model relates to field of LED illumination, specifically a kind of light-operated LED emergency light.
Background technology
Illumination is electric applicable key areas, especially in some special places as hotel, restaurant or basement flow of personnel intensive, by the restriction of fabric structure, if had a power failure suddenly, particularly due to the power failure that causes of burst accidental cause, be easy to raise fear and trample the event of blocking up, cause casualties, the appearance of emergency light effectively solves this problem, emergency light is all with energy storage battery, but traditional emergency light uses transformer pressure-reducing structure mostly, not only volume is large, and weight is large, add the difficulty of extension on the wall or on ceiling, existing emergency light mostly is power-off control simultaneously, will open as long as have a power failure, and daytime well-lighted time do not need emergency light, therefore the waste of electric energy and the damage of components and parts is caused.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the light-operated LED emergency light of saves energy, 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 light-operated LED emergency light, comprise triode V1, triode V2, rectifier bridge T and resistance R1, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of resistance R1 connects the other end of electric capacity C1 and the port one of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects electric capacity C3, resistance R2, the anode of diode D3 and the anode of diode D4, the other end contact resistance R3 of resistance R2, the negative electrode of diode D2 and the base stage of triode V1, the port 4 of rectifier bridge T connects electric capacity C2, the other end of electric capacity C3, the other end of resistance R3, resistance R8, switch S 1, the emitter of triode V1, the emitter of triode V3 and storage battery E, the collector electrode of triode V1 connects the other end and the resistance R4 of electric capacity C2, the other end contact resistance R5 of resistance R4, the negative electrode of diode D3 and the base stage of triode V2, the other end of resistance R5 connects the negative electrode of diode D1 and the emitter of triode V2, the collector electrode contact resistance R6 of triode V2 and resistance R7, the other end of resistance R6 connects the anode of diode D2, the other end of other end contact resistance R8 of resistance R7 and the base stage of triode V3, the collector electrode of triode V3 connects the other end of LED group H and switch S 1, the negative electrode of diode D4 connects the anode of diode D1, the other end of the lamp group H such as the positive pole of storage battery E and LED.
As preferred version of the present utility model: described LED lamp H is made up of the LED lamp bead of 12 1W.
As preferred version of the present utility model: described resistance R8 is photo resistance.
Compared with prior art, the beneficial effects of the utility model are: the utility model LED power supply circuits have abandoned transformer, adopt capacitance decompression structure, greatly reduce the volume and weight of circuit, thus alleviate the weight hanging over wall, be simultaneously provided with control module at power end, only at insufficient light and power-off just can open emergency light, also be provided with hand switch, therefore have that cost of manufacture is low, saves energy, the practical and convenient and simple advantage of structure.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of light-operated LED emergency light.
Embodiment
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, a kind of light-operated LED emergency light, comprise triode V1, triode V2, rectifier bridge T and resistance R1, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of resistance R1 connects the other end of electric capacity C1 and the port one of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects electric capacity C3, resistance R2, the anode of diode D3 and the anode of diode D4, the other end contact resistance R3 of resistance R2, the negative electrode of diode D2 and the base stage of triode V1, the port 4 of rectifier bridge T connects electric capacity C2, the other end of electric capacity C3, the other end of resistance R3, resistance R8, switch S 1, the emitter of triode V1, the emitter of triode V3 and storage battery E, the collector electrode of triode V1 connects the other end and the resistance R4 of electric capacity C2, the other end contact resistance R5 of resistance R4, the negative electrode of diode D3 and the base stage of triode V2, the other end of resistance R5 connects the negative electrode of diode D1 and the emitter of triode V2, the collector electrode contact resistance R6 of triode V2 and resistance R7, the other end of resistance R6 connects the anode of diode D2, the other end of other end contact resistance R8 of resistance R7 and the base stage of triode V3, the collector electrode of triode V3 connects the other end of LED group H and switch S 1, the negative electrode of diode D4 connects the anode of diode D1, the other end of the lamp group H such as the positive pole of storage battery E and LED.
LED lamp H is made up of the LED lamp bead of 12 1W.Resistance R8 is photo resistance
Operation principle of the present utility model is: 220V line voltage is through resistance R1 and electric capacity C1 step-down, circuit supply is given after rectifier bridge T rectification and electric capacity C3 voltage stabilizing, during line voltage normal power supply, triode V1 conducting, make the below-center offset resistance R4 of V2 base stage connect " ", but because V2 base stage to obtain the positive voltage of nearly 4V by D3, current potential is more high than launching, so V2 cut-off, V3 ends because base stage can not get bias voltage, therefore LED group H not conducting, storage battery charges normal, once electric main has a power failure, the direct-flow positive voltage that V2 base stage is provided by D6 is relieved, then because the voltage had a power failure on moment C2 electrolytic capacitor C2 still exists, V1 also conducting, by E through D1 flow through R5 and R4 to " " the pressure drop that produces on R6 of electric current make V2 obtain the necessary condition of conducting.V2 conducting, if now ambient light is sufficient, then light rice resistance R8 is very low by illumination effect resistance, be similar to short circuit, therefore triode V3 base stage is still without conducting voltage, and triode V3 still ends, when only having environmental light intensity lower, the resistance of photo resistance R8 is very large, now be added in the base stage of triode V3 by the electric current of triode V2, make triode V3 conducting, LED emergency light H is lit, and only at rechargeable battery E current drain totally, just can extinguish when can not maintain conducting V2 again.
Claims (3)
1. a light-operated LED emergency light, comprise triode V1, triode V2, rectifier bridge T and resistance R1, it is characterized in that, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of resistance R1 connects the other end of electric capacity C1 and the port one of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects electric capacity C3, resistance R2, the anode of diode D3 and the anode of diode D4, the other end contact resistance R3 of resistance R2, the negative electrode of diode D2 and the base stage of triode V1, the port 4 of rectifier bridge T connects electric capacity C2, the other end of electric capacity C3, the other end of resistance R3, resistance R8, switch S 1, the emitter of triode V1, the emitter of triode V3 and storage battery E, the collector electrode of triode V1 connects the other end and the resistance R4 of electric capacity C2, the other end contact resistance R5 of resistance R4, the negative electrode of diode D3 and the base stage of triode V2, the other end of resistance R5 connects the negative electrode of diode D1 and the emitter of triode V2, the collector electrode contact resistance R6 of triode V2 and resistance R7, the other end of resistance R6 connects the anode of diode D2, the other end of other end contact resistance R8 of resistance R7 and the base stage of triode V3, the collector electrode of triode V3 connects the other end of LED group H and switch S 1, the negative electrode of diode D4 connects the anode of diode D1, the other end of the lamp group H such as the positive pole of storage battery E and LED.
2. a kind of light-operated LED emergency light according to claim 1, it is characterized in that, described LED lamp H is made up of the LED lamp bead of 12 1W.
3. a kind of light-operated LED emergency light according to claim 1, is characterized in that, described resistance R8 is photo resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555028.1U CN204929331U (en) | 2015-07-28 | 2015-07-28 | Light -operated LED emergency light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555028.1U CN204929331U (en) | 2015-07-28 | 2015-07-28 | Light -operated LED emergency light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929331U true CN204929331U (en) | 2015-12-30 |
Family
ID=54978423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520555028.1U Expired - Fee Related CN204929331U (en) | 2015-07-28 | 2015-07-28 | Light -operated LED emergency light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929331U (en) |
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2015
- 2015-07-28 CN CN201520555028.1U patent/CN204929331U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170728 |