CN202634844U - Control circuit of explosion-proof lamp - Google Patents
Control circuit of explosion-proof lamp Download PDFInfo
- Publication number
- CN202634844U CN202634844U CN 201220308918 CN201220308918U CN202634844U CN 202634844 U CN202634844 U CN 202634844U CN 201220308918 CN201220308918 CN 201220308918 CN 201220308918 U CN201220308918 U CN 201220308918U CN 202634844 U CN202634844 U CN 202634844U
- Authority
- CN
- China
- Prior art keywords
- circuit
- control circuit
- explosion
- proof lamp
- lamp control
- 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
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a control circuit of an explosion-proof lamp. The control circuit comprises a light detection circuit and a singlechip control circuit, wherein an output signal of the light detection circuit is transmitted to the singlechip control circuit through a switch trigger circuit; and an output signal of the singlechip control circuit is controlled to be transmitted to an RS485 communication interface circuit and a noncontact switch drive circuit. When the light of an outside natural environment becomes weak, the control circuit can automatically adjust light; the control circuit has the characteristics of explosion protection, no spark, no noise, long service life, high drive power and the like; and the control circuit is particularly applied to flammable and explosive occasions such as a coal mine, a chemical warehouse and an oil and fuel storage.
Description
Technical field
The utility model relates to a kind of control circuit, particularly be a kind of explosion-proof lamp control circuit.
Background technology
In some special occasions; Like inflammable and explosive occasions such as coal mine, chemicals warehouse, oil plant storehouses, the application of LED lamp is extremely important and extensive, regularly or manually controls but existing LED controls all employings; It is through regular meeting's electricity wasting ability, and very inconvenience.
The utility model content
The purpose of the utility model is to restrain above-mentioned deficiency, and a kind of explosion-proof lamp control circuit is provided.
The utility model solves the technical scheme that its technical problem adopted: a kind of explosion-proof lamp control circuit; Comprise light testing circuit and single chip machine controlling circuit; To single chip machine controlling circuit, the output signal controlling of said single chip machine controlling circuit is sent to RS485 communication interface circuit and non-contact switch drive circuit to the output signal of said light testing circuit through the switch triggering circuit transmission.
Preferably, said light testing circuit adopts photo resistance RL to gather light signal, and the output of said photo resistance RL is through capacitor C 1 ground connection.
Preferably, said switch triggering circuit adopts 3DA87C transistor Q1.
Preferably, said RS485 communication interface circuit is connected to PC through SN75176 communication interface chip IC2.
Preferably, said non-contact switch drive circuit is made up of the controllable silicon VS, D1-D4 full bridge rectifier, bidirectional triode thyristor VT1 and the LED lamp that connect successively.
Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: when a little less than the extraneous natural environment degree; This circuit is with an automatic light meter; Have explosion-proof, no-spark, noiseless, long, the big characteristics such as (reaching 2000W) of driving power of life-span, be particularly suitable for inflammable and explosive occasions such as coal mine, chemicals warehouse, oil plant storehouse.
Description of drawings
Fig. 1 is the frame assumption diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify.
Like Fig. 1, shown in Figure 2; A kind of explosion-proof lamp control circuit of the utility model; Comprise light testing circuit 1 and single chip machine controlling circuit 2; The output signal of said light testing circuit 1 transfers to single chip machine controlling circuit 2 through switch triggering circuit 11, and the output signal controlling of said single chip machine controlling circuit 2 is sent to RS485 communication interface circuit 21 and non-contact switch drive circuit 22.
Said light testing circuit 1 adopts photo resistance RL to gather light signal, and the output of said photo resistance RL is through capacitor C 1 ground connection, and said switch triggering circuit 11 adopts 3DA87C transistor Q1; When ambient light was brighter, the internal resistance of photo resistance RL was very little, and its resistance changes with the brightness of available light; This moment, the base current of 3DA87C transistor Q1 was bigger; 3DA87C transistor Q1 is in conducting state, and the collector electrode of 3DA87C transistor Q1 is electronegative potential output, and this signal is input to the 35th end I/O mouth of single-chip microcomputer IC1; After single-chip microcomputer IC1 judges, do not send the controlling and driving signal.
In case the light deepening of natural environment, the luminous flux that is radiated on the photo resistance RL reduces, and the internal resistance of photo resistance RL increases gradually; The base current that flows to 3DA87C transistor Q1 becomes very little thereupon, so the collector potential of 3DA87C transistor Q1 raises, the collector electrode of 3DA87C transistor Q1 is high potential output; This signal is input to the 35th end I/O mouth of single-chip microcomputer IC1, at this moment, the control utmost point of positive and negative alternating-current pulse triggering controllable silicon VS is arranged and make it conducting; The conducting of D1-D4 full bridge rectifier, bidirectional triode thyristor VT1 triggers the LED lamp and is lighted, and this circuit is with the deepening gradually of available light; The brightness of LED lamp strengthens gradually, has soft-start feature, has played the effect of protection illuminating lamp preferably; The 39th end of single-chip microcomputer IC1 also is in high potential state simultaneously, after single-chip microcomputer IC1 internal processor is judged, forms RS485 communication interface circuit 21 by the 1st, 2,3,4 pin of single-chip microcomputer IC1 the 25th, 10,11 pin and SN75176 communication interface chip IC2; Send data-signal by IC1; After SN75176 communication interface chip IC2 decoding conversion, reach the night shift room monitor system software, show current led state.Have explosion-proof, no-spark, noiseless, advantage such as the life-span is long, driving power is big.
An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (5)
1. explosion-proof lamp control circuit; It is characterized in that: comprise light testing circuit (1) and single chip machine controlling circuit (2); The output signal of said light testing circuit (1) transfers to single chip machine controlling circuit (2) through switch triggering circuit (11), and the output signal controlling of said single chip machine controlling circuit (2) is sent to RS485 communication interface circuit (21) and non-contact switch drive circuit (22).
2. explosion-proof lamp control circuit according to claim 1 is characterized in that: said light testing circuit (1) adopts photo resistance RL to gather light signal, and the output of said photo resistance RL is through capacitor C 1 ground connection.
3. explosion-proof lamp control circuit according to claim 1 and 2 is characterized in that: said switch triggering circuit (11) adopts 3DA87C transistor Q1.
4. explosion-proof lamp control circuit according to claim 1 is characterized in that: said RS485 communication interface circuit (21) is connected to PC through SN75176 communication interface chip IC2.
5. explosion-proof lamp control circuit according to claim 1 is characterized in that: said non-contact switch drive circuit (22) is made up of the controllable silicon VS, D1-D4 full bridge rectifier, bidirectional triode thyristor VT1 and the LED lamp that connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308918 CN202634844U (en) | 2012-06-29 | 2012-06-29 | Control circuit of explosion-proof lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308918 CN202634844U (en) | 2012-06-29 | 2012-06-29 | Control circuit of explosion-proof lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634844U true CN202634844U (en) | 2012-12-26 |
Family
ID=47387976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308918 Expired - Fee Related CN202634844U (en) | 2012-06-29 | 2012-06-29 | Control circuit of explosion-proof lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507212A (en) * | 2014-12-01 | 2015-04-08 | 国网上海市电力公司 | Electromagnetic isolation lamp switch applicable to inflammable and explosive places |
-
2012
- 2012-06-29 CN CN 201220308918 patent/CN202634844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507212A (en) * | 2014-12-01 | 2015-04-08 | 国网上海市电力公司 | Electromagnetic isolation lamp switch applicable to inflammable and explosive places |
| CN104507212B (en) * | 2014-12-01 | 2017-07-04 | 国网上海市电力公司 | A kind of electromagnetic isolation light switch suitable for combustible and explosive area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102595726B (en) | Emergency lighting circuit and emergency lighting system | |
| CN107493643A (en) | The intelligence control system and method for a kind of solar street light | |
| CN205117080U (en) | Domestic intelligent windowsill illumination controlling means | |
| CN204272464U (en) | A kind of room lighting intelligent control system | |
| CN205070963U (en) | Dab delay switch circuit | |
| CN202634844U (en) | Control circuit of explosion-proof lamp | |
| CN208025385U (en) | A kind of solar lawn lamp and its control circuit | |
| CN102752935A (en) | Solar light-emitting diode (LED) lamp controller | |
| CN102281676A (en) | Battery-powered human body induction time light-operated LED (light emitting diode) lamp | |
| CN202068630U (en) | Human body induction timing light control LED (light-emitting diode) lamp powered by battery | |
| CN102325403A (en) | Touch time-delay switch made from digital circuit CD4013 | |
| CN201582757U (en) | Computer synchronizing light | |
| CN105072779A (en) | Solar street lamp controller with mains supply charging function | |
| CN202696973U (en) | Light-emitting diode (LED) yard lamp | |
| CN202340340U (en) | Touch delay switch consisting of double-D-trigger | |
| CN202818730U (en) | Multifunctional working lamp | |
| CN204191001U (en) | MPPT solar street lamp controller | |
| CN203151844U (en) | Human body approach- and light-operated toilet lighting equipment | |
| CN202652601U (en) | Remote-control-type emergency light | |
| CN105916233A (en) | Multi-mode charging protection ultra-far energy-saving illumination system | |
| CN102833929B (en) | Self-ballasted fluorescent lamp and open loop protection circuit thereof | |
| CN102185941B (en) | Mobile terminal | |
| CN214314676U (en) | Quick response circuit for indicator lamp of charger | |
| CN201062722Y (en) | Minisize emergency lamp with small night lamp function | |
| CN202210889U (en) | Battery protection device for LED lighting equipment |
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: 20121226 Termination date: 20130629 |