CN202183896U - Emergency control circuit for LED lamp - Google Patents
Emergency control circuit for LED lamp Download PDFInfo
- Publication number
- CN202183896U CN202183896U CN2011202783012U CN201120278301U CN202183896U CN 202183896 U CN202183896 U CN 202183896U CN 2011202783012 U CN2011202783012 U CN 2011202783012U CN 201120278301 U CN201120278301 U CN 201120278301U CN 202183896 U CN202183896 U CN 202183896U
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- led lamp
- control circuit
- storage battery
- relay
- emergency control
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Abstract
The utility model relates to an emergency control circuit for an LED lamp. The emergency control circuit for an LED lamp comprises a commercial power input, a capacitor voltage reduction rectification charging, a comparison control circuit, an LED lamp and a storage battery. The emergency control circuit for an LED lamp is characterized in that commercial power signals are detected through an optical coupler device; if commercial power is provided, self-locking is carried out for output of a relay, and if no commercial power is provided, the output of the relay is removed for the purpose of the control of an LED lamp; over-discharge is adopted for the protection of the storage battery; and if the voltage of the storage battery is lower than a fixed value, the output of the relay is cut off so that the relay is protected. The emergency control circuit for an LED lamp is novel in detection and control method, is concrete and practical in technical scheme, and can be widely applied to a building fire-fighting guiding lamp, an alarm lamp and a household emergency lamp.
Description
Technical field
The utility model relates to a kind of LED emergency light control circuit, is specially adapted to avigation light, warning lamp and family's emergency light of building fire-fighting.
Background technology
Existing LED emergency lighting circuit, charging circuit and commutation circuit components and parts are more, and control is complicated, and cost is high, poor reliability, failure rate is high, and storage battery is not provided with over simultaneously, and the life-span of storage battery is shorter, has a strong impact on performance of products.
Summary of the invention
In view of above-mentioned technical deficiency, the purpose of the utility model provides a kind of LED emergency light control circuit.This circuit adopts optocoupler to detect city's signal of telecommunication, and the self-locking output relay.The LED lamp did not work when realization had relay, and in the time of no civil power, optocoupler is removed, the output relay outage, and normally closed interlock is closed, and the LED lamp is bright.
The utility model adopts following scheme to realize: a kind of LED lamp emergency control circuit comprises the civil power input, the capacitance decompression rectification charging; Comparison control circuit, LED lamp, storage battery; It is characterized in that: adopt optocoupler to detect city's signal of telecommunication, when civil power is arranged, the self-locking output relay; Remove output relay in the time of no civil power, reach the purpose of control LED lamp.In order to protect storage battery to be provided with over, when the voltage of storage battery is lower than definite value, also excise output relay simultaneously, protected relay.
The utility model detects and control method, novelty, and implementation is specifically practical, can be widely used in building fire-fighting avigation light, warning lamp and family's emergency light.
Description of drawings
Fig. 1 is the utility model circuit theory sketch map.
Fig. 2 is the utility model circuit embodiments circuit diagram.
Embodiment
As shown in Figure 1, the purpose of the utility model provides a kind of LED emergency light control circuit, comprises the civil power input; The capacitance decompression rectification charging, comparison control circuit, LED lamp; Storage battery is characterized in that: adopt optocoupler to detect city's signal of telecommunication, when civil power is arranged; Remove output relay in the time of self-locking output relay, no civil power, reach the purpose of control LED lamp.In order to protect storage battery to be provided with over, when the voltage of storage battery is lower than definite value, also excise output relay simultaneously, protected relay.
Fig. 2 is the specific embodiment circuit diagram, is having under the situation of civil power, and optocoupler has detected city's signal of telecommunication, optocoupler U3 conducting, and this moment, relay K 1 was logical, and the normally closed contact K1 that closes of relay K 1 breaks off, and emergency light LED does not work.
Having under the situation of civil power, civil power begins to charge a battery.External circuit connects the output of storage battery, after divider resistance R1, R2, R3, R4, R5 dividing potential drop, and at the branch pressure voltage value of sampled point A and B reverse input end magnitude of voltage as comparator U1A and U1B, because
，
When the terminal voltage of storage battery was 14.3V, the output voltage values that A, B are 2 was respectively:
Output voltage values by 2 of A, B can know that when accumulator voltage was higher than 14.3V, U1B was failure to actuate, and the Q1 pipe ends.At this moment, not conducting of optocoupler U2, the K0 relay is not worked, and major loop does not drop into civil power.
When the terminal voltage of storage battery was 10.6V, the output voltage values that A, B are 2 was respectively:
Can know, when accumulator voltage is higher than 10.6V and is lower than 14.3V, the U1B action, Q1 manages conducting, but since U1A comparator no-output, not conducting of optocoupler U2, the K0 relay is not worked, and major loop does not drop into civil power.
When accumulator voltage is lower than 10.6V, comparator U1B action, Q1 manages conducting, and comparator U1A also moves, optocoupler U2 conducting, the light-receiving end conducting of photoelectric tube, relay K 0 gets electric, and major loop drops into mains-supplied, and diode D2 plays the self-sustaining effect.
The civil power input charges a battery, and accumulator voltage raises, when accumulator voltage is higher than 10.6V and is lower than 14.3V, and the U1B action, Q1 manages conducting.Because the self-sustaining effect of diode D2, optocoupler continues conducting, and at this moment, relay K 0 gets electric, and major loop still drops into mains-supplied.
When accumulator voltage was higher than 14.3V, U1B was failure to actuate, and the Q1 pipe ends.At this moment, not conducting of optocoupler U2, the K0 relay is not worked, major loop excision mains-supplied.
Under the situation that does not have civil power, not conducting of optocoupler U3, when the voltage of storage battery is higher than 10.6V, this moment U1C reverse input end voltage greater than 3.0V, greater than positive input+3V voltage, the U1C output low level, Q2 pipe ends.This time, relay K 1 was failure to actuate, K switch 1 closure, and storage battery forms the loop through K switch 1 and LED lamp, and this time, the LED emergency light was bright.
Under the situation that does not have civil power, not conducting of optocoupler U3, when the voltage of storage battery was lower than 10.6V, this moment, the reverse input end voltage of U1C was lower than 3.0V, was lower than positive input+3V voltage, and U1C exports high level, and Q2 manages conducting.Relay K 1 action in this time, K switch 1 is broken off, and storage battery can not form the loop with the LED lamp through K switch 1, and this time, the LED emergency light did not work, and had just excised the emergency light loop yet.
The above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model.
Claims (6)
1. a LED lamp emergency control circuit comprises the civil power input, the capacitance decompression rectification charging; Comparison control circuit, LED lamp, storage battery; It is characterized in that: adopt optocoupler to detect city's signal of telecommunication, when civil power is arranged, the self-locking output relay; Remove output relay in the time of no civil power, reach the purpose of control LED lamp;
In order to protect storage battery to be provided with over, when the voltage of storage battery is lower than definite value, also excise output relay simultaneously, protected relay.
2. a kind of LED lamp emergency control circuit according to claim 1 is characterized in that in the capacitance decompression rectification charging, civil power is connected with storage battery through diode after the capacitance decompression rectification.
3. a kind of LED lamp emergency control circuit according to claim 1 is characterized in that storage battery links to each other with the normally closed interlock of relay and constitutes the loop with the LED lamp.
4. a kind of LED lamp emergency control circuit according to claim 1 is characterized in that storage battery selection 12v lead acid accumulator.
5. a kind of LED lamp emergency control circuit according to claim 1 is characterized in that the comparator positive input connects+the 3V standard signal, and reverse input end connects the dividing potential drop measuring-signal that is provided by storage battery.
6. a kind of LED lamp emergency control circuit according to claim 1 is characterized in that comparator adopts LM324 in the comparison control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202783012U CN202183896U (en) | 2011-08-02 | 2011-08-02 | Emergency control circuit for LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202783012U CN202183896U (en) | 2011-08-02 | 2011-08-02 | Emergency control circuit for LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183896U true CN202183896U (en) | 2012-04-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202783012U Expired - Fee Related CN202183896U (en) | 2011-08-02 | 2011-08-02 | Emergency control circuit for LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183896U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046849A (en) * | 2012-12-31 | 2013-04-17 | 深圳市广安消防装饰工程有限公司 | Fireproof door with emergency illumination function |
| CN104066221A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Optical detection circuit and light fixture |
| CN104518485A (en) * | 2013-09-26 | 2015-04-15 | 深圳市海洋王照明工程有限公司 | Battery over-discharge electric protection circuit |
| CN107241834A (en) * | 2017-08-14 | 2017-10-10 | 中节能晶和照明有限公司 | A kind of small size LED emergency light circuits |
| CN107277984A (en) * | 2017-08-14 | 2017-10-20 | 中节能晶和照明有限公司 | A kind of LED emergency lights triggering starts and under-voltage protecting circuit |
-
2011
- 2011-08-02 CN CN2011202783012U patent/CN202183896U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046849A (en) * | 2012-12-31 | 2013-04-17 | 深圳市广安消防装饰工程有限公司 | Fireproof door with emergency illumination function |
| CN103046849B (en) * | 2012-12-31 | 2015-04-22 | 深圳市广安消防装饰工程有限公司 | Fireproof door with emergency illumination function |
| CN104066221A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Optical detection circuit and light fixture |
| CN104518485A (en) * | 2013-09-26 | 2015-04-15 | 深圳市海洋王照明工程有限公司 | Battery over-discharge electric protection circuit |
| CN107241834A (en) * | 2017-08-14 | 2017-10-10 | 中节能晶和照明有限公司 | A kind of small size LED emergency light circuits |
| CN107277984A (en) * | 2017-08-14 | 2017-10-20 | 中节能晶和照明有限公司 | A kind of LED emergency lights triggering starts and under-voltage protecting circuit |
| CN107241834B (en) * | 2017-08-14 | 2019-01-11 | 中节能晶和照明有限公司 | A kind of small size LED emergency light circuit |
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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: 20120404 Termination date: 20120802 |