CN102984871A - Automatic switching illumination device - Google Patents
Automatic switching illumination device Download PDFInfo
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- CN102984871A CN102984871A CN2012105678483A CN201210567848A CN102984871A CN 102984871 A CN102984871 A CN 102984871A CN 2012105678483 A CN2012105678483 A CN 2012105678483A CN 201210567848 A CN201210567848 A CN 201210567848A CN 102984871 A CN102984871 A CN 102984871A
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Abstract
The invention discloses an automatic switching illumination device and relates to an illumination device. The device comprises a plurality of lamps connected with an alternating current power supply in parallel, wherein a control circuit is connected between the two lamps and comprises an alternating current contactor CT1, resistors R11-R13, capacitors C11, diodes D11 and D12, a voltage stabilizing diode VZ1, a relay K1, and a field-effect tube Q1; after a live wire of one lamp penetrates through the alternating current contactor CT1 and the resistor R11, and then connected with the CT1 in parallel, one end of the live wire is connected with the diode D11, then connected with the capacitor C11 and the resistor R12 in parallel, and connected a G pole of the field-effect tube Q1 by the resistor R13; the voltage stabilizing diode VZ1 is connected between a G pole and an S pole of the field-effect tube Q1 in parallel; the relay K1 is connected between a 12V direct current source and a D pole of the field-effect tube Q1 in series; the diode D12 is connected with the relay K1 in parallel; and a normally closed contact of the relay K1 is connected with a live wire of the other lamp in series. The automatic switching illumination device has the advantages that the automatic switching illumination device has an effect that a bulb in case of damage can be automatically switched to another bulb, so that unnecessary troubles and losses brought to a factory due to the damage of an illumination lamp are reduced or avoided.
Description
Technical field
The present invention relates to a kind of lighting device, specifically a kind of automatic conversion lighting device is specially adapted to the illuminating lamps such as factory building, square.
Background technology
Actual according to plant produced, highly generally more than 10 meters, if one of them illuminating lamp in the factory building has just been broken and need in time have been changed, because factory building is higher, changing illuminating lamp wasted time and energy when plant designing was installed.
Summary of the invention
The invention provides a kind of automatic conversion lighting device, solve the ground such as factory building, square and change time-consuming, the effort of illuminating lamp, impact is produced, this problem of living, reach the effect that automatically is transformed into another bulb if any a bulb-damage through control circuit, the unnecessary trouble and the loss that reduce thus or avoided bringing to factory because lighting damages.
The present invention realizes with following technical scheme: a kind of automatic conversion lighting device, the lamp that comprises a plurality of incoming transport power supplys in parallel, be connected with control circuit between two lamps, described control circuit comprises A.C. contactor CT1, resistance R 11～R13, capacitor C 11, diode D11, D12, voltage stabilizing didoe VZ1 relay K 1 and an effectiveness pipe Q1; The live wire of one of them lamp passes A.C. contactor CT1, resistance R 11 and a terminating diode D11 after CT1 is in parallel, in parallel with capacitor C 11, resistance R 12 again, then connect the G utmost point of effectiveness pipe Q1 by resistance R 13, between the G utmost point of voltage stabilizing didoe VZ1 effectiveness pipe Q1 on the scene in parallel, the S utmost point, relay K 1 is serially connected between the D utmost point of 12V DC source and effectiveness pipe Q1, and diode D12 is in parallel with relay K 1, and relay K 1 normally closed is serially connected in the live wire of another lamp.
The invention has the beneficial effects as follows: reach the effect that automatically is transformed into another bulb if any a bulb-damage through automatic conversioning controling circuit, time saving and energy saving, the unnecessary trouble and the loss that reduce thus or avoided bringing to factory because lighting damages.Cost is lower, and small volume with the deficiency of lower cost solution frequent illuminating lamp, is increased work efficiency.Can reduce artificial use lift frequency, potential safety hazard is little.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is circuit diagram of the present invention.
Embodiment
As shown in Figure 1, automatically the conversion lighting device is comprised of four lightings, live wire and the zero line of direct incoming transport power supply, the live wire of one lamp passes A.C. contactor CT1, resistance R 11 and a terminating diode D11 after CT1 is in parallel, in parallel with capacitor C 11, R12 again, connect with R13, then connect the grid G of Q1, VZ1 is connected in parallel between G, the S of Q1, and relay K 1 is serially connected between the drain D of 12V DC source and Q1, and D12 is in parallel with relay, relay normally closed is serially connected in the live wire of two lamps, other analogize.Current Transmit is a kind of current converter, and it becomes high-voltage great-current into the lower little electric current of voltage, and whether the bulb quality that detects this branch road by it, if bulb normal operation, just have electric current and flow through instrument transformer, instrument transformer will induce electric current, otherwise does not just have electric current; Resistance R 11(R21 in the circuit, R31) induced current is transformed into voltage; Diode D11(D21, D31) alternating voltage of responding to is carried out halfwave rectifier, become the direct current of pulsation; Then again through capacitor C 11(C21, C31) filtering becomes metastable direct current; Resistance R 12(R22, R32) provide a discharge loop to electric capacity; Above-mentioned diode, electric capacity, resistance consist of a peak-detector circuit together.Through detection direct voltage out, pass through again resistance R 13(R23, R33) current limliting rear drive metal-oxide-semiconductor field effect transistor Q1(Q2, Q3), and then drive electromagnetic relay K1(K2, K3) action; During i.e. lamp normal operation, middle translation circuit makes relay K 1 action, turn-offs the power supply of two lamps, and then closes three lamps, four lamps; Do not work when a lamp, do not have electric current, relay K 1 is failure to actuate, two lamp pluggeds work, and three lantern festivals are because of the normal operation of two lamps, and relay K 2 is moved, and turn-off the power supply of three lamps, four lamps; The operation principle of two lamps and front is the same.
Transformer T1 and diode D1, D2, electrochemical capacitor C1 consists of a simple DC source circuit, provides operating voltage to relay; Diode D12, D22, D32 carry out turn-off protection to relay K 1, K2, K3; Voltage stabilizing didoe VZ1, VZ2, VZ3 are to metal-oxide-semiconductor field effect transistor Q1, Q2, and Q3 protects.
Realize principle: Closing Switch; First lamp work is by the current transformer induced current; The voltage that obtains wanting by sample resistance again; Voltage is by rectification, filtering; Make alternating current become pulsed dc voltage; Voltage is added to the grid of field effect transistor; Fet gate G, S get electric, D, S meeting conducting; Thereby electromagnetic relay gets electric, and contact action, normally-closed contact disconnect, second and third, four lamps must not electricity, do not work.
When first illuminating lamp bad time, for providing the circuit of control voltage, the field effect transistor G utmost point do not work, and then field effect transistor there is not electricity, also quit work, cause electromagnetic relay must not the electricity, contact is failure to actuate, be in normally off, second illuminating lamp at this moment will work together always, the back the like.
According to the above: the G of field effect transistor end because first bulb energising work, voltage is 220V, power is 100W, so be I by the electric current of bulb
1=P/U=0.5A.Because the effect of current transformer is at I
1Have in the situation of electric current and can induce I
2=0.5mA.When selecting field effect transistor, know its cut-in voltage greater than 3V, make the voltage of the actuating of relay greater than 5V, thus need to control voltage with a voltage stabilizing didoe VZ 7V5, so R
2=7.5V/0.5mA=15k Ω.In the debugging test of back, all bright situations of four bulbs of firm energising occurred, but crossed about general 2s, according to formula σ=CR, select C
1So=10 μ F are R
3=σ/C
1=2/10
-5=200k Ω selects a R who approaches with it
2=300k Ω.
The S end of field effect transistor, owing to connected the transformer of a 220V/9V, but output generally will be exported 1.1 to 1.2 times voltage, so supposition input 220V, the voltage of that output is 9*1.2=10.8V.The electric current that then uses universal meter to record by electromagnetic relay arrives 40mA as 30mA, so the resistance value of electromagnetic relay coil is R
Km=
And because formula
, wherein
, f=50Hz, so
, get 5 here, calculate C=138 μ F, so C
2Get 220 a μ F's.
According to top calculating and interlock circuit parameter, the applicable bulb rated power of this circuit is in that (between the 100W～2200W), maximum power is placed restrictions on by the rated operational current of relay mainly.
Claims (1)
1. automatically change lighting device for one kind, the lamp that comprises a plurality of incoming transport power supplys in parallel, it is characterized in that: be connected with control circuit between two lamps, described control circuit comprises A.C. contactor CT1, resistance R 11～R13, capacitor C 11, diode D11, D12, voltage stabilizing didoe VZ1 relay K 1 and an effectiveness pipe Q1; The live wire of one of them lamp passes A.C. contactor CT1, resistance R 11 and a terminating diode D11 after CT1 is in parallel, in parallel with capacitor C 11, resistance R 12 again, then connect the G utmost point of effectiveness pipe Q1 by resistance R 13, between the G utmost point of voltage stabilizing didoe VZ1 effectiveness pipe Q1 on the scene in parallel, the S utmost point, relay K 1 is serially connected between the D utmost point of 12V DC source and effectiveness pipe Q1, and diode D12 is in parallel with relay K 1, and relay K 1 normally closed is serially connected in the live wire of another lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105678483A CN102984871A (en) | 2012-12-24 | 2012-12-24 | Automatic switching illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105678483A CN102984871A (en) | 2012-12-24 | 2012-12-24 | Automatic switching illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102984871A true CN102984871A (en) | 2013-03-20 |
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ID=47858485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105678483A Pending CN102984871A (en) | 2012-12-24 | 2012-12-24 | Automatic switching illumination device |
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| CN (1) | CN102984871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985968A (en) * | 2019-12-23 | 2020-04-10 | 余京丽 | Automatic replacement system for road street lamp tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984987A (en) * | 1989-11-09 | 1991-01-15 | Actar Airforce, Inc. | CPR manikin |
| CN1057153A (en) * | 1990-06-05 | 1991-12-18 | 陈纪东 | Solid changeover switch |
| CN201113378Y (en) * | 2007-06-29 | 2008-09-10 | 东莞大朗金准电器厂 | Electronic current-limiting device |
-
2012
- 2012-12-24 CN CN2012105678483A patent/CN102984871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984987A (en) * | 1989-11-09 | 1991-01-15 | Actar Airforce, Inc. | CPR manikin |
| CN1057153A (en) * | 1990-06-05 | 1991-12-18 | 陈纪东 | Solid changeover switch |
| CN201113378Y (en) * | 2007-06-29 | 2008-09-10 | 东莞大朗金准电器厂 | Electronic current-limiting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985968A (en) * | 2019-12-23 | 2020-04-10 | 余京丽 | Automatic replacement system for road street lamp tube |
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Application publication date: 20130320 |