CN201766764U

CN201766764U - Intelligent electricity-saving control device for fluorescent lamp

Info

Publication number: CN201766764U
Application number: CN2010202504518U
Authority: CN
Inventors: 刘柏江; 耿富臣; 陈兴文
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-07
Filing date: 2010-07-07
Publication date: 2011-03-16
Anticipated expiration: 2020-07-07

Abstract

The utility model relates to an intelligent electricity-saving control device for a fluorescent lamp, which mainly comprises a power network and a miniature controller, wherein an input terminal of the power network is connected with a current transformer and a voltage transformer which are used for detecting the change conditions of current and voltage; the current transformer and the voltage transformer which are subject to voltage stabilization and filtration of a rectification filter circuit are connected with the input terminal of a digital to analog converter; the output terminal of the digital to analog converter is connected with the miniature controller for providing the numerical values of current and voltage to the miniature controller in real time; the input terminal of the miniature controller is connected with a light intensity sensor, and the output terminal of the miniature controller is connected with a drive circuit; and the output terminal of the drive circuit is connected with a relay. The power network is in branch connection with a three-tap transformer, the input voltage of the power network is 220V, the output voltage of the power network is divided into four types from high to low, namely 220V, 200V, 180V and 0V, and output terminals of the three-tap transformer are connected with and controlled by a relay K1, a relay K2, a relay K3 and a relay K4, and the miniature controller is used for acquiring signals and controlling the opening and closing of the particular relays. The intelligent electricity-saving control device is convenient to assemble and has the advantages of high efficiency, safety and reliability, intelligent operation and the like.

Description

Fluorescent lamp intelligent energy-saving control device

Technical field the utility model relates to a kind of electronic equipment, especially battery saving arrangement.

Background technology is well-known, and electric energy is a kind of energy mode that is most widely used in all energy, also is one of heavy maximum energy of accounting in the energy resource consumption.According to statistics, China's gross generation in 2009 is 36,506 hundred million kilowatt hours, this wherein the electric consumption on lighting amount be about 4,100 hundred million kilowatt hours, account for about 12% of gross generation, and mostly belong to the peak electricity consumption, this shows that by illuminating energy-saving be an important channel saving electric energy.Present stage, fluorescent lamp is still the main lighting apparatus in large-scale place such as each classroom of China, industrial building, market, though and the LED lamp that rises is recently compared with traditional fluorescent lamp and is saved electric energy more, but temporarily also can not get popularizing widely owing to its cost is higher, so also can't realize the renewal of new lighting apparatus at short notice.The operating characteristic of fluorescent lamp is: thus when starting, need instantaneous pressure that argon gas in the fluorescent tube and mercury vapour ionization is luminous, only need low voltage to keep after the startup.Yet line voltage setting of today still keeps the high pressure about 220V after the fluorescent lamp operate as normal, under the excessive situation of indoor intensity of illumination, so not only wastes the useful life of electric energy but also loss fluorescent lamp.If can on fluorescent lamp, carry out the consumption that step-down control can effectively reduce electric energy, the conservation of power resource.

The summary of the invention the purpose of this utility model provides and a kind ofly can adopt low voltage power supply to reduce the fluorescent lamp intelligent energy-saving control device of power consumption according to the fluorescent lamp brightness of intensity of illumination Based Intelligent Control and after starting fluorescent lamp.

The utility model mainly comprises electrical network and microcontroller, the electrical network input is connected with current transformer and voltage transformer, be used to detect the situation of change of electric current and voltage, current transformer and voltage transformer are connected the input of digital to analog converter respectively after current rectifying and wave filtering circuit voltage stabilizing, filtering, the digital to analog converter output is connected with microcontroller, for microcontroller provides electric current, the real-time variation numerical value of voltage; The input of microcontroller is connected with light intensity sensor, and output connects drive circuit, and the output of drive circuit connects relay; At triple stub transformer of electrical network part tap, the electrical network input voltage is 220V, output voltage is respectively 220V, 200V, 180V and 0V level Four altogether, output connects fluorescent lamp and respectively by relay K 1, K2, K3 and K4 control, controls specific relay folding by the microcontroller acquired signal.Described microcontroller adopts single chip computer AT 89C52.Described digital to analog converter adopts the ADC0809 model.The permission luminous intensity of described light intensity sensor is 50～60lux.

During use, by optical sensor indoor light intensity is done regularly and to be detected, at room light according to reducing fluorescent lamp brightness in stronger, at room light according to strengthening fluorescent lamp brightness in very weak, in good time changes fluorescent lamp brightness with extraneous circumstance, can more effective reasonable use electric energy.Behind the fluorescent start, reduce power consumption, improve the utilance of electric energy by the mode that reduces voltage.

Compared with the prior art, the beneficial effects of the utility model are: easy to assembly, effect is high, safe and reliable, intelligence is controlled, can be under the situation that does not influence the illumination job requirements by reducing the consumption that the fluorescent lamp operating voltage reduces electric energy, to reach purpose of saving, and prolonging service life of fluorescent lamp reaches dual energy-conservation effect.

Description of drawings Fig. 1 is integrated circuit figure of the present utility model.

Fig. 2 is the circuit connection diagram of light intensity sensor of the present utility model and microcontroller.

Fig. 3 is current rectifying and wave filtering circuit figure of the present utility model.

Fig. 4 is the circuit connection diagram of digital to analog converter of the present utility model and microcontroller.

Fig. 5 is the circuit connection diagram of drive circuit of the present utility model and relay.

Embodiment is in integrated circuit figure of the present utility model shown in Figure 1, and 1 is that electrical network, 2 is that triple stub transformer, 3 is that current transformer, 4 is that voltage transformer, 5 is that current rectifying and wave filtering circuit, 6 is that A/D converter ADC0809,7 is that single chip computer AT 89C52,8 is that light intensity sensor, 9 is that drive circuit, 10 is a relay.

The light intensity sensor as shown in Figure 2 and the circuit connection diagram of microcontroller utilize light conditions in the optical sensor timing sensing chamber, and it is connected with single chip computer AT 89C52.Setting lower threshold value on the permission luminous intensity of optical sensor, is 50-60lux as the optimum light intensity of people's learning life, provides interrupt signal when actual light illumination surpasses this scope.

Current rectifying and wave filtering circuit figure as shown in Figure 3, the line voltage standard value is 220V, but under actual conditions, line voltage can change to some extent, therefore need sample to voltage, electric current in good time, in time detect voltage, current variation, information is passed to the magnitude of voltage that single-chip microcomputer is controlled supply.Here adopting input voltage range is the voltage transformer of 0～380V, is fit to the collection to the 220V line voltage.Adopting the input current scope is the current transformer of 0～150A, can realize the conversion of current/voltage simultaneously.Alternating voltage after sampling can obtain direct voltage after rectification, but this voltage has bigger ripple component, when in circuit, using commutated direct current to press, in circuit, insert electric capacity or inductance element, ripple component after utilizing energy storage effect that these elements have with rectification in the output voltage reduces, voltage after the rectification is become smoothly, near Constant Direct Current.In order to reduce the pulsation of voltage after the rectification, often adopt filter circuit the alternating current component elimination, make the load two ends obtain the less direct voltage of pulsing.

The digital to analog converter as shown in Figure 4 and the circuit connection diagram of microcontroller, the single-chip microcomputer of this module adopts AT89C52, and what sheet included 8k bytes can be used for preserving control program by erasable repeatedly Flash read-only program memory.With ADC0809 as analog to digital converter, realization to electric current, voltage by the conversion of analog quantity to digital quantity, clock is that the ALE of single-chip microcomputer contracts frequently through d type flip flop, the control mouthful standard control circuit of being made up of P2.7, WR, RD and gate circuit, the P0 mouth of single-chip microcomputer and the output of ADC0809 are connected, read the result after AD changes.

The drive circuit as shown in Figure 5 and the circuit connection diagram of relay partly connect a triple stub transformer at electrical network, the about 220V voltage of electrical network input, and output is respectively 200V, 180V, 0V adds original 220V level Four altogether.By relay K 2, K3, K4 and K1 control, can come control output voltage respectively by the closure of control particular relay.The information via that single chip computer AT 89C52 receives after the ADC0809 conversion is handled the output control pulse signal, the output pulse can directly be received the relay controlled stage after amplifying, the closure of control particular relay, the voltage when changing the fluorescent lamp operate as normal plays reduction voltage and carries out energy-conservation effect.

The course of work is: the voltage transformer summation current transformer is connected the voltage of electrical network of sampling, the change information of electric current with electrical network.Electrical network is connected with relay by triple stub transformer, and line voltage is divided into 220V, 200V, 180V and 0V level Four voltage, and respectively by four relay controls.Rectification, filter circuit input link to each other with the output of voltage transformer summation current transformer, and the AC signal that sampling is obtained changes direct current signal into, and the other end links to each other with the input of A/D converter ADC0809, and analog signal is delivered to ADC0809.ADC0809 links to each other with single chip computer AT 89C52, converts analog quantity to digital quantity and sends single-chip microcomputer to.Optical sensor links to each other with single chip computer AT 89C52, becomes digital quantity directly to deliver to single-chip microcomputer according to information translation detected ambient light.Single chip computer AT 89C52 links to each other with drive circuit, and the output signal of single-chip microcomputer is amplified.Drive circuit links to each other with relay, and the control signal after the amplification is directly controlled the closure of specific relay, changes the magnitude of voltage of output.

Claims

1. fluorescent lamp intelligent energy-saving control device, mainly comprise electrical network and microcontroller, it is characterized in that: the electrical network input is connected with current transformer and voltage transformer, be used to detect the situation of change of electric current and voltage, current transformer and voltage transformer are connected the input of digital to analog converter respectively after current rectifying and wave filtering circuit voltage stabilizing, filtering, the digital to analog converter output is connected with microcontroller, for microcontroller provides electric current, the real-time variation numerical value of voltage; The input of microcontroller is connected with light intensity sensor, and output connects drive circuit, and the output of drive circuit connects relay; At triple stub transformer of electrical network part tap, the electrical network input voltage is 220V, output voltage is respectively 220V, 200V, 180V and 0V level Four altogether, output connects fluorescent lamp and respectively by relay K 1, K2, K3 and K4 control, controls specific relay folding by the microcontroller acquired signal.

2. fluorescent lamp intelligent energy-saving control device according to claim 1 is characterized in that: described microcontroller adopts single chip computer AT 89C52.

3. fluorescent lamp intelligent energy-saving control device according to claim 1 is characterized in that: described digital to analog converter adopts the ADC0809 model.

4. fluorescent lamp intelligent energy-saving control device according to claim 1 is characterized in that: the permission luminous intensity of described light intensity sensor is 50～60lux.