CN201162976Y - Acousto-optic controlled ceiling lamp - Google Patents

Acousto-optic controlled ceiling lamp Download PDF

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Publication number
CN201162976Y
CN201162976Y CNU2008200914968U CN200820091496U CN201162976Y CN 201162976 Y CN201162976 Y CN 201162976Y CN U2008200914968 U CNU2008200914968 U CN U2008200914968U CN 200820091496 U CN200820091496 U CN 200820091496U CN 201162976 Y CN201162976 Y CN 201162976Y
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CN
China
Prior art keywords
power supply
led
circuit
power
output
Prior art date
Application number
CNU2008200914968U
Other languages
Chinese (zh)
Inventor
林陈峰
Original Assignee
深圳市日锋电子有限公司
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Application filed by 深圳市日锋电子有限公司 filed Critical 深圳市日锋电子有限公司
Priority to CNU2008200914968U priority Critical patent/CN201162976Y/en
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Publication of CN201162976Y publication Critical patent/CN201162976Y/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model relates to an acoustically and optically control ceiling lamp, comprising an electric light source and a power supply circuit thereof arranged on the ceiling, wherein the power supply circuit comprises an acoustic and photosensitive combined sensor through cascade connection, a time delay switch integrated circuit and an alternating current control output circuit as well as a rectification power supply circuit supplying power to the circuits, and the electric light source is LED; the power supply circuit of the electric light source also comprises a switch power source, an output end of which is directly connected with the LED, an input end of which is connected with an output end of the alternating current control output circuit, and an output of the acoustic and photosensitive combined sensor controls the power supply to the LED; and a normally open contact of an alternating current relay of the alternating current control output circuit is serially connected with power cords of a controlled power supply, one normally closed contact is serially connected with commercial power alternating fire wires, and the other normally closed contact is serially connected with a fire-fighting emergency power supply. The ceiling lamp has the characteristics of energy conservation, high efficiency of light and long service life; moreover, the efficiency of light and the service life under illumination state in frequent short time is not affected, and can meet the normal power supply under the fire-fighting emergency state through forced power supply.

Description

A kind of acousto-optic control lamp affixed to the ceiling
Technical field
The utility model relates to light fixture, especially relates to a kind of acousto-optic control lamp affixed to the ceiling.
Background technology
Acousto-optic control lamp affixed to the ceiling is a powered lighting during by acquisition environment noise or ambient light illumination, during the illumination as no sizable environmental noise or great ambient light illumination, cuts off the power supply automatically after postponing setting-up time.Existing acousto-optic control lamp affixed to the ceiling adopts glass lamp shade or the ring-like light pipe of electricity-saving lamp mostly, influenced by the electricity-saving lamp characteristics of luminescence, and its life-span is extremely short, often change, so power saving and not saving money.Particularly, under the fire-fighting emergent state, can not guarantee normal power supply because the civil power of shared inductive switch exchanges live wire.
Summary of the invention
Technical problem to be solved in the utility model is to remedy the defective that prior art exists, and a kind of long-life, high efficiency, easy for installation and can guarantee the acousto-optic control lamp affixed to the ceiling of normal power supply under the fire-fighting emergent state are provided.
Technical problem of the present utility model is solved by the following technical programs.
This acousto-optic control lamp affixed to the ceiling, comprise and inhale electric light source and the power supply circuits thereof that install on the top, the rectification power circuit that described power supply circuits comprise the quick photosensitive combined sensor of sound, delay switch integrated circuit and alternating current control output circuit that cascade connects and power for foregoing circuit.
The characteristics of this acousto-optic control lamp affixed to the ceiling are:
Described electric light source is LED; Its life-span is long, and average life span is more than 10 times of energy-efficient lamp, particularly uses under frequent short time illuminating state, and light efficiency and life-span are unaffected, and general the installation in the use of back need do not changed.
The power supply circuits of described electric light source also comprise the Switching Power Supply that output directly is connected with LED, and the input of described Switching Power Supply is connected with the output of alternating current control output circuit, are powered to LED by the output control of the quick photosensitive combined sensor of sound;
Described alternating current control output circuit is a switching transistor control output circuit, comprise that switching transistor, its coil get the AC relay that dead electricity is controlled by switching transistor, the normally opened contact of AC relay is connected in the power line of controlled electric light source, one normally-closed contact is connected on civil power and exchanges in the live wire, and another normally-closed contact is connected in the fire-fighting emergency power supply.
Technical problem of the present utility model is solved by following further technical scheme.
The combination that the quick photosensitive combined sensor of described sound is acoustic sensor and photoelectric sensor, described acoustic sensor comprises Electret condenser microphone, moving coil pick-up, described photoelectric sensor comprises photo resistance, phototriode.
The middle power LED array that described LED is made up of at least one LED, every watt of luminous quantity is 65~70 lumens.Its luminous efficiency height, the lumen per watt coefficient is up to more than 30%.
Described LED adapted PMMA lampshade.PMMA is the abbreviation of polymethyl methacrylate (Poly-methylmethacrylate), is also referred to as acrylic acid sheet material, is commonly called as " lucite ", or acrylic (AcrylicSheet), has good optical characteristics and weatherability variation characteristic.
Described Switching Power Supply is the isolation type switch power of the permanent low pressure output of constant current, can guarantee that the LED safety long-life uses.
The beneficial effect that the utility model is compared with the prior art is:
The utlity model has energy-conservation, high light efficiency, long-life, under frequent short time illuminating state light efficiency and life-span unaffected, and can constrained feed to satisfy the characteristics of needs normal power supply under the fire-fighting emergent state.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model specific embodiment;
Fig. 2 is the circuit theory diagrams of the utility model specific embodiment.
The specific embodiment
Acousto-optic control lamp affixed to the ceiling as shown in Figure 1, 2, comprise and inhale electric light source and the power supply circuits thereof that install on the top that described power supply circuits comprise the quick photosensitive combined sensor 1 of sound of cascade connection, delay switch integrated circuit 2 (U1), alternating current control output circuit 4 and the rectification power circuit 3 that model is 74HC00.The quick photosensitive combined sensor 1 of sound of 5539 types comprises Electret condenser microphone M1 and 5539 type photo resistance CDS.N is 220 volts of electric main zero lines, and L is that 220 volts of electric main live wires are phase line, and C is 220 volts and exchanges the emergency power supply phase line.
The middle led array that the electric light source that install on the suction top is made up of LED1~LED24, general power is 12 watts, every watt of luminous quantity is 65~70 lumens.
Described delay switch integrated circuit 2 comprises 74H,C00 four or two input nand gates, 5539 type photo resistance CDS, delay capacitor C2, time-delay discharge resistance R3, output control current-limiting resistance R1, also external voltage-stablizer D13.
Described alternating current control output circuit 4 is switching transistor control output circuits, comprise that switching transistor Q1, its coil get the AC relay that dead electricity is controlled by switching transistor, the normally opened contact of AC relay is connected on the input of the Switching Power Supply 5 of controlled electric light source LED, it is among the phase line L that one normally-closed contact is connected on 220 volts of electric main live wires, and another normally-closed contact is connected in the fire-fighting emergency power supply C phase line.
Described rectification power circuit 3 is the rectifier bridges that comprise that commutation diode D1, D2, D3, D4 form, and reaches resistance R 9, capacitor C 5 composition step-down current-limiting circuits.
Described Switching Power Supply 5 comprises rectifier bridge, step-down transformer T1 that commutation diode D6, D7, D8, D9 form and flyback switching converter U3, photoelectrical coupler U4, operational amplifier U5 and the voltage-stablizer U6 that uses a TNY276P device of TinySwitch-III series, and the led array of forming to LED1~LED24 of high illumination provides the load current up to 0.48A.Voltage-stabiliser tube VR1 provides the voltage feedback, and output voltage is adjusted at about DC12.8V.Detect output current by detecting resistance R 23, and feedback is provided for flyback switching converter U3 by operational amplifier U5 driving photoelectrical coupler U4.The TNY276P device is by turn-offing or skipping the switch mosfet cycle and carry out voltage stabilizing.Therefore when led array was connected to power supply, power work was in constant current (CC) pattern.When load current reached electric current threshold value is set, operational amplifier U5 drove photoelectrical coupler U4 conducting.Optical transistor in the photoelectrical coupler U4 is pulled out electric current from the EN/UV pin of flyback switching converter U3, makes its skip cycle.In case output current drops to electric current and is provided with below the threshold value, operational amplifier U5 stops to drive photoelectrical coupler U4, and the optical transistor in the photoelectrical coupler U4 stops to pull out electric current from the EN/UV pin of flyback switching converter U3, and switch periods enables again.Voltage-stablizer U6 (TL431) provides reference voltage for operational amplifier U5, and to compare with the voltage drop that detects resistance R 23 two ends, the output services that make Switching Power Supply 5 are in constant current (CC) pattern and constant voltage (CV) pattern.
The concrete course of work of Switching Power Supply 5 is as follows:
Rectifier bridge that 220V~electric main is formed through commutation diode D6, D7, D8, D9 and C19 filtering obtain the DC voltage about 300V.The clamp circuit of forming by resistance R 20, capacitor C 20, clamp diode D10; the leakage inductance shutoff voltage spike of flyback switching converter U3 drain electrode is controlled in the safety value scope, has protected its inner MOSFET drain electrode to avoid instead swashing the infringement of due to voltage spikes effectively.300V left and right sides DC voltage directly is added to flyback switching converter U3 drain electrode through the elementary winding of step-down transformer T1, its internal circuit is started working, because the coupling of step-down transformer T1, transformer secondary output provides the voltage feedback through the DC voltage that diode D11 rectification, capacitor C 24 filtering obtain by voltage-stabiliser tube VR1 and photoelectrical coupler U4, and output voltage is adjusted at about DC12.8V.In output voltage surpasses voltage-stabiliser tube VR1 and photoelectrical coupler U4 during LED forward drop sum, electric current will flow to the LED in the photoelectrical coupler U4, optical transistor electric current strengthens in it, optical transistor in the photoelectrical coupler U4 is pulled out electric current from the EN/UV pin of flyback switching converter U3, makes flyback switching converter U3 skip cycle.When this electric current exceeds this enable pin threshold current, will suppress next switch periods.When output voltage was lower than feedback threshold, the enable pin of flyback switching converter U3 was carried out a switch periods.Enable the quantity in cycle by adjusting, can regulate output voltage.
When environmental noise strengthened, Electret condenser microphone M1 received ultra-weak electronic signal process capacitor C 1 coupling that environmental noise is changed.Transistor Q1 is in the saturation conduction state, and when the negative pulse of capacitor C 1 coupling was come, transistor Q1 ended rapidly, and its current collection is high level very.Detect the output of amplification back by delay switch integrated circuit 2, gauge tap transistor Q2 conducting, AC relay J1 is got, the normally opened contact adhesive of input that it is connected on the Switching Power Supply 5 of controlled electric light source LED, the output control switch power supply 5 that makes alternating current control output circuit 4 is to the LED powered lighting.
When ambient light illumination died down to the 7Lux left and right sides, photo resistance CDS was to the ambient light illumination generation high level that dies down.Detect the output of amplification back by delay switch integrated circuit 2, gauge tap transistor Q2 conducting, AC relay J1 is got, the normally opened contact adhesive of input that it is connected on the Switching Power Supply 5 of controlled electric light source LED, the output control switch power supply 5 that makes alternating current control output circuit 4 is to the LED powered lighting.
When the needs fire-fighting emergent, the fire-fighting emergent port is inserted emergency power supply phase line C power supply, even unmanned induction, the live wire electric current still can be used for fire emergency to the LED power supply through the normally-closed contact output control switch power supply 5 of AC relay.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.

Claims (5)

1. acousto-optic control lamp affixed to the ceiling, comprise and inhale electric light source and the power supply circuits thereof that install on the top, the rectification power circuit that described power supply circuits comprise the quick photosensitive combined sensor of sound, delay switch integrated circuit and alternating current control output circuit that cascade connects and power for foregoing circuit is characterized in that:
Described electric light source is LED;
The power supply circuits of described electric light source also comprise the Switching Power Supply that output directly is connected with LED, and the input of described Switching Power Supply is connected with the output of alternating current control output circuit, are powered to LED by the output control of the quick photosensitive combined sensor of sound;
Described alternating current control output circuit is a switching transistor control output circuit, comprise that switching transistor, its coil get the AC relay that dead electricity is controlled by switching transistor, the normally opened contact of AC relay is connected in the power line of controlled electric light source, one normally-closed contact is connected on civil power and exchanges in the live wire, and another normally-closed contact is connected in the fire-fighting emergency power supply.
2. acousto-optic control lamp affixed to the ceiling according to claim 1 is characterized in that:
The combination that the quick photosensitive combined sensor of described sound is acoustic sensor and photoelectric sensor, described acoustic sensor comprises Electret condenser microphone, moving coil pick-up, described photoelectric sensor comprises photo resistance, phototriode.
3. acousto-optic control lamp affixed to the ceiling according to claim 1 and 2 is characterized in that: the middle power LED array that described LED is made up of at least one LED.
4. acousto-optic control lamp affixed to the ceiling according to claim 3 is characterized in that:
Described LED adapted PMMA lampshade.
5. acousto-optic control lamp affixed to the ceiling according to claim 4 is characterized in that:
Described Switching Power Supply is the isolation type switch power of the permanent low pressure output of constant current.
CNU2008200914968U 2008-01-11 2008-01-11 Acousto-optic controlled ceiling lamp CN201162976Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200914968U CN201162976Y (en) 2008-01-11 2008-01-11 Acousto-optic controlled ceiling lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200914968U CN201162976Y (en) 2008-01-11 2008-01-11 Acousto-optic controlled ceiling lamp

Publications (1)

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CN201162976Y true CN201162976Y (en) 2008-12-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012002845A2 (en) * 2010-06-28 2012-01-05 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
WO2012002846A2 (en) * 2010-06-28 2012-01-05 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
CN102147053B (en) * 2010-02-08 2013-03-06 建准电机工业股份有限公司 Alternating current led lamp
CN103595250A (en) * 2013-10-25 2014-02-19 广州汉光电气有限公司 Shell instrument power module circuit
CN105007654A (en) * 2015-06-29 2015-10-28 叶秀兰 Sound trigger automatic LED lamp

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102147053B (en) * 2010-02-08 2013-03-06 建准电机工业股份有限公司 Alternating current led lamp
WO2012002845A2 (en) * 2010-06-28 2012-01-05 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
WO2012002846A2 (en) * 2010-06-28 2012-01-05 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
WO2012002845A3 (en) * 2010-06-28 2012-02-23 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
WO2012002846A3 (en) * 2010-06-28 2012-02-23 Voroshilov Igor Valerievich Light emitting diode lamp (embodiments)
CN103595250A (en) * 2013-10-25 2014-02-19 广州汉光电气有限公司 Shell instrument power module circuit
CN105007654A (en) * 2015-06-29 2015-10-28 叶秀兰 Sound trigger automatic LED lamp

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081210

Termination date: 20120111

C17 Cessation of patent right