CN202043363U

CN202043363U - Energy-saving control circuit of high voltage sodium lamp

Info

Publication number: CN202043363U
Application number: CN201120062282XU
Authority: CN
Inventors: 王涛; 马立峰
Original assignee: NINGBO CHUANQI OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: NINGBO CHUANQI OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2011-11-16
Anticipated expiration: 2021-03-07

Abstract

The utility model relates to an energy-saving control circuit of a high voltage sodium lamp. The energy-saving control circuit comprises an input power source, an energy saving device and a sodium lamp starting circuit, wherein the positive pole and the negative pole of the input power source are connected with the input end of the energy saving device, and the output end of the energy saving device is connected with the sodium lamp starting circuit. The energy-saving control circuit is characterized in that the energy saving device comprises a control circuit and an autotransformer connected with the control circuit in series. Compared with the prior art, the energy-saving control circuit has the advantages that the autotransformer is adopted in the energy-saving control circuit to replace the traditional inductor so as to avoid the LC oscillation generated by a compensation capacitor and an inductor in an energy saving device in the traditional sodium lamp starting circuit, therefore, when the existing sodium lamp system is improved, the compensation capacitor does not need to be dismantled, thereby not only reducing the amount of work, but also saving the installation cost.

Description

A kind of energy-saving control circuit of high-pressure sodium lamp

Technical field

The utility model relates to the energy-saving control circuit of a kind of control circuit, particularly a kind of sodium vapor lamp.

Background technology

High-pressure sodium lamp sends golden white light when using, and has that luminous efficiency height, little power consumption, life-span are long, mist transmitting performance lures advantages such as worm by force and not, therefore is widely used on the lighting apparatus such as road, highway, airport, harbour, dock, station, square.

High-pressure sodium lamp is stably worked in order to guarantee bulb under the stabilized power source condition, and the circuit element with positive resistance characteristic of must connecting in the circuit comes this negative resistance charactertistic of balance, the steady operation electric current, and this element is called ballast or flow restricter.The inductive ballast is because little, the impedance stabilization of its loss; long service life; the stability of bulb is better than resistive ballast, and therefore, the present and matching used ballast of high-pressure sodium lamp is Inductive ballast L '; as shown in Figure 3; and the start-up circuit D ' of high-pressure sodium lamp is a non-pure resistive load, and power factor is lower; therefore on the networking, also will consider usually and meet building-out capacitor C ', to improve the power factor at networking.

In the prior art; I am the deficiency of the utility model patent " environment-friendly type intelligent high-pressure sodium lamp energy-saving appliance " of ZL201020296249.9 at existing sodium vapor lamp electricity-saving appliance in the patent No. of first to file; a kind of novel intelligent high-efficiency energy-saving appliance is provided; referring to shown in Figure 3; this energy-saving appliance JNQ ' adopts the single-chip microcomputer embedded technology; in the sodium vapor lamp system, be serially connected with an inductance TA ' who has tap; the input voltage that adopts the single-chip microcomputer detection of grid simultaneously is to realize the control of multilevel voltage; when the electrical network input voltage reaches a certain value; single-chip microcomputer provides signal and inserts inductance TA '; and the inductance value that inserted of control, to reach the purpose in energy-conservation and protection light-source system life-span of step-down.Though it is rational in infrastructure that the energy-saving appliance of above-mentioned patent has, volume is little, advantages such as power saving rate height and long service life, but also there is following shortcoming simultaneously: when promptly the energy-saving appliance in adopting above-mentioned patent carries out reducing energy consumption to the high-pressure sodium lamp system, can produce the LC vibration between inductance TA ' in the system, control circuit and the building-out capacitor C ' in the sodium vapor lamp, therefore dismounting of the building-out capacitor C ' among the sodium vapor lamp start-up circuit D ' and transposition need be installed to power input, can guarantee the operate as normal of whole sodium vapor lamp control circuit, if large batch of high-pressure sodium lamp lighting apparatus is transformed, then all need the building-out capacitor of cap part is carried out a dismounting at every turn, not only workload is big, inefficiency, also need to drop into lot of manpower and material resources, can increase improvement cost widely.

The utility model content

Technical problem to be solved in the utility model is the energy-saving control circuit that the lower high-pressure sodium lamp of a kind of rational in infrastructure, reducing energy consumption workload and cost is provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of energy-saving control circuit of high-pressure sodium lamp, include input power supply, energy-saving appliance and sodium vapor lamp start-up circuit, wherein, the both positive and negative polarity of described input power supply is connected the input of described energy-saving appliance, the output of this energy-saving appliance connects described sodium vapor lamp start-up circuit, it is characterized in that: described energy-saving appliance includes control circuit and the autotransformer that is serially connected in this control circuit.

As preferably, described control circuit includes current sampling circuit, voltage stabilizing circuit, voltage rectifying circuit, the current commutates circuit, the relay that single-chip microcomputer and the described sodium vapor lamp of control open and close, wherein, described current sampling circuit is connected to an AD input of described single-chip microcomputer through described current commutates circuit, the power output end of described autotransformer links to each other with described voltage stabilizing circuit behind filter rectification, described voltage rectifying circuit is obtained sampled voltage and is connected to the 2nd AD input of described single-chip microcomputer from described autotransformer, and the output of this single-chip microcomputer links to each other with described relay coil.

As further preferred, described sodium vapor lamp start-up circuit includes ballast, circuits for triggering, building-out capacitor and sodium vapor lamp, wherein, one end of described ballast links to each other through an end of building-out capacitor and sodium vapor lamp fluorescent tube, the other end of sodium vapor lamp fluorescent tube connects the other end of described ballast, and described circuits for triggering are connected in parallel on the two ends of described sodium vapor lamp.

Compared with prior art, advantage of the present utility model is: adopt autotransformer to replace traditional inductance in the sodium vapor lamp economizer circuit, can avoid building-out capacitor and the inductance in the energy-saving appliance in traditional sodium vapor lamp start-up circuit to produce the LC vibration, make when existing sodium vapor lamp system is carried out reducing energy consumption, do not need to dismantle in addition building-out capacitor, not only reduce workload, also saved installation cost.

Description of drawings

Fig. 1 is the energy-saving control circuit functional block diagram of the high-pressure sodium lamp of the utility model embodiment.

Fig. 2 is an economizer circuit block diagram shown in Figure 1.

Fig. 3 is the energy-saving control circuit functional block diagram of high-pressure sodium lamp of the prior art.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, the high-pressure sodium lamp energy-saving control circuit of present embodiment, include three parts: input power supply, energy-saving appliance JNQ and sodium vapor lamp start-up circuit D, wherein, the input of energy-saving appliance JNQ connects live wire L and the zero line N that imports power supply respectively, and the output of this energy-saving appliance JNQ connects sodium vapor lamp start-up circuit D;

Sodium vapor lamp start-up circuit D has generally included ballast L, circuits for triggering CF, building-out capacitor C and sodium vapor lamp ZD, wherein, ballast L can realize current limitation, guarantee the constant of sodium vapor lamp ZD operating current, the end of ballast L links to each other with an end of sodium vapor lamp ZD fluorescent tube through building-out capacitor C, the other end of sodium vapor lamp ZD fluorescent tube connects the other end of ballast L, circuits for triggering CF is connected in parallel on the two ends of sodium vapor lamp ZD, circuits for triggering CF is usually by the relay J 1 in the energy-saving appliance JNQ circuit, J2, Jn control, when satisfying the sodium vapor lamp entry condition, relay J 1, J2, Jn control triggering electric circuit CF work, and then start sodium vapor lamp work.

Energy-saving appliance JNQ includes control circuit Kt and is serially connected in autotransformer TA among this control circuit Kt, tandem electric inductance carries out current limliting in the existing energy-saving appliance, its shortcoming be easily and the building-out capacitor in the sodium vapor lamp start-up circuit produce LC and vibrate, the building-out capacitor in the sodium vapor lamp start-up circuit must be pulled down and be connected in parallel on the operate as normal that the power input two ends can guarantee whole sodium vapor lamp circuit;

In order to reduce the workload in the sodium vapor lamp reducing energy consumption, increase work efficiency, adopt autotransformer TA to carry out step-down in the energy-saving appliance of present embodiment, thereby realize current limliting indirectly, to guarantee the operate as normal of sodium vapor lamp; Wherein, the control circuit Kt of energy-saving appliance JNQ includes singlechip CPU, current transformer T, voltage stabilizing circuit U2, voltage rectifying circuit U1, the relay J 1 that current commutates circuit U 3 and control sodium vapor lamp open and close, J2, Jn, can select the single-chip microcomputer of each producer's different model in the prior art for the singlechip CPU among the control circuit Kt, this singlechip CPU has the voltage signal input, current signal input and signal output part, as the model that can adopt FUJITSU (Fujitsu) is the single-chip microcomputer of MB95F223K, perhaps the model of NXP (grace intelligence Pu) is the single-chip microcomputer of P89LPC915FDH, perhaps the model of TI (Texas Instrument) is the single-chip microcomputer of MSP430G2131, and perhaps the model of ATMEL (liking special Mel) is single-chip microcomputer of ATINY13 or the like.

The circuit connection structure of control circuit Kt is among the energy-saving appliance JNQ: current transformer T obtains electric current and is connected to an AD input P1 of singlechip CPU through current commutates circuit U 3 from autotransformer TA as current sampling circuit, autotransformer TA is provided with a plurality of taps and a power output end, wherein, the power output end output 12V alternating voltage of autotransformer TA, then through exporting the 5V DC power supply behind the full-bridge filter rectification to voltage stabilizing circuit U2, the a plurality of taps of this autotransformer TA and relay J 1, J2, each contact switch K1 of Jn, K2, Kn links to each other respectively, voltage rectifying circuit U1 obtains behind the voltage and is connected to the 2nd AD input P2 of singlechip CPU from autotransformer TA, the signal output part of this singlechip CPU and relay J 1, J2, the coil of Jn links to each other respectively, relay J 1, J2, each contact switch K1 of Jn, K2, Kn links to each other with each tap of autotransformer TA respectively, plays the effect of control sodium vapor lamp electric current.

Claims

1. the energy-saving control circuit of a high-pressure sodium lamp, include input power supply, energy-saving appliance and sodium vapor lamp start-up circuit, wherein, the both positive and negative polarity of described input power supply is connected the input of described energy-saving appliance, the output of this energy-saving appliance connects described sodium vapor lamp start-up circuit, it is characterized in that: described energy-saving appliance includes control circuit and the autotransformer that is serially connected in this control circuit.

2. the energy-saving control circuit of high-pressure sodium lamp according to claim 1, it is characterized in that: described control circuit includes current sampling circuit, voltage stabilizing circuit, voltage rectifying circuit, the current commutates circuit, the relay that single-chip microcomputer and the described sodium vapor lamp of control open and close, wherein, described current sampling circuit is connected to an AD input of described single-chip microcomputer through described current commutates circuit, the power output end of described autotransformer links to each other with described voltage stabilizing circuit behind filter rectification, described voltage rectifying circuit is obtained sampled voltage and is connected to the 2nd AD input of described single-chip microcomputer from described autotransformer, and the output of this single-chip microcomputer links to each other with described relay coil.

3. the energy-saving control circuit of high-pressure sodium lamp according to claim 1 and 2, it is characterized in that: described sodium vapor lamp start-up circuit includes ballast, circuits for triggering, building-out capacitor and sodium vapor lamp, wherein, one end of described ballast links to each other through an end of building-out capacitor and sodium vapor lamp fluorescent tube, the other end of sodium vapor lamp fluorescent tube connects the other end of described ballast, and described circuits for triggering are connected in parallel on the two ends of described sodium vapor lamp.