CN101873759A

CN101873759A - Inductance type ballast

Info

Publication number: CN101873759A
Application number: CN 201010197613
Authority: CN
Inventors: 唐云生; 李坚
Original assignee: CHONGQING TAIRUI ELECTRONIC Co Ltd
Current assignee: CHONGQING TAIRUI ELECTRONIC Co Ltd
Priority date: 2010-06-11
Filing date: 2010-06-11
Publication date: 2010-10-27

Abstract

The invention discloses an inductance type ballast which comprises a first relay, a second relay, a second inductor, a first inductor, a third inductor, a singlechip, an acquisition module, a power supply module, a power carrier wave module and a driving module, wherein the second inductor, the first inductor and the third inductor are sequentially connected in series; the acquisition module, the power supply module, the power carrier wave module and the driving module are respectively connected with the singlechip; and the power supply module is used for supplying power for the singlechip, the acquisition module is used for acquiring the voltage signal of an electric network and sending the voltage signal to the singlechip, the power carrier wave module is used for sending a power carrier wave signal to the singlechip, and the singlechip is used for generating an instruction and sending the instruction to the driving module according to the voltage signal and the power carrier wave signal. A plurality of inductors are arranged in the inductance type ballast disclosed by the invention, the working current of a gas discharge lamp can be reduced by connecting different inductors when the voltage of the electric network is increased or according to the requirement of a schedule, the aging of the gas discharge lamp is delayed, the service life thereof is prolonged, and along with the decrease of the working current of the gas discharge lamp, the active power consumed by the lamp is also reduced therewith to achieve the purpose of reducing the energy consumption.

Description

A kind of inductance type ballast

Technical field

The present invention relates to the gaseous discharge lamp technical field, relate in particular to a kind of inductance type ballast.

Background technology

The electric energy that China's illumination at present consumes accounts for 10%～20% of generating total amount, and wherein the street lighting energy consumption accounts for more than 30%, and the annual electricity charge of national street lighting consume and surpass 1,000 hundred million yuan, and with every year with the speed increase more than 10%.In order to reduce energy consumption, adopt gaseous discharge lamps now in the urban lighting system more, gaseous discharge lamp (as sodium vapor lamp, Metal halogen lamp) is luminous by the commingle discharging of gas, metallic vapour or several gas and metallic vapour, and it has light efficiency height, long advantage of luminous soft, life-span.In use gaseous discharge lamp and ballast must be series at ability steady operation in the electrical network, if separately gaseous discharge lamp is inserted in the electrical network, bulb or circuit element will be damaged by overcurrent.The core of inductance type ballast is to utilize inductance to produce induction reactance in alternating current, makes that electric current can not suddenly change in the inductance coil, has the principle of stabling current effect in circuit, provides stable operating current to gaseous discharge lamp.

In city illumination, there is variation in the load of urban distribution network in the different time periods, and for example in the second half of the night, network load only is 20%～40% of an electrical network maximum load, and this causes line voltage after midnight to raise, and runs between 240V～260V.

At present, because inductance type ballast inside only is provided with an inductance, can only produce a kind of inductance value, this metering function that causes inductance type ballast is conditional, when the voltage of electrical network significantly rises, inductance type ballast can not be reduced to allowed band with electric current, directly cause the actual power of gaseous discharge lamp to surpass rated power, the power of the light fixture actual consumption that moves under 240V～260V voltage is 1.2～1.4 times of rated value, caused bigger energy consumption, and bigger electric current also can cause light fixture aging, reduces its useful life.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of inductance type ballast, its inside is provided with a plurality of inductance, when raising, line voltage can avoid the actual power of gaseous discharge lamp to surpass rated power, requirement that can also be as per the schedule is downrating significantly, reduce the energy loss of gaseous discharge lamp, slow down the aging of gaseous discharge lamp, prolong its useful life.

For achieving the above object, the invention provides following technical scheme:

A kind of inductance type ballast comprises: first relay, second relay, first inductance, second inductance, the 3rd inductance, single-chip microcomputer, the acquisition module that is connected with described single-chip microcomputer respectively, power module, power carrier module and driver module;

Described acquisition module is gathered the voltage signal of electrical network and is sent to described single-chip microcomputer;

Described power module is described single-chip microcomputer power supply;

Described power carrier module receives the power carrier signal of Centralized Controller transmission and carries out being sent to described single-chip microcomputer after the demodulation;

The input of described driver module is connected with described single-chip microcomputer, output is connected with the coil of described first relay and second relay respectively;

Described single-chip microcomputer generates instruction and is sent to described driver module according to described voltage signal and power carrier signal;

Described second inductance, first inductance and the 3rd inductance are connected successively, first fixed contact of described first relay is connected with the common port of described second inductance and first inductance, its second fixed contact is connected with the other end of described second inductance, its moving contact is connected with described acquisition module, first fixed contact of described second relay is connected with the common port of described first inductance and the 3rd inductance, its second fixed contact is connected with the other end of described the 3rd relay, and its moving contact is connected with the electricity consumption loop.

This shows, beneficial effect of the present invention is: be provided with a plurality of inductance in inductance type ballast disclosed by the invention, when the voltage of electrical network raises or the requirement of the timetable that comprises in according to power carrier signal, by inserting the operating current that different inductance reduces gaseous discharge lamp, delay the aging of gaseous discharge lamp, prolong its useful life, and reducing along with the gaseous discharge lamp operating current, the active power of light fixture consumption also decreases, and reaches the purpose that cuts down the consumption of energy.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention, to do simple introduction to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of a kind of inductance type ballast disclosed by the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making under the creative work prerequisite, and the every other embodiment that is obtained belongs to protection range of the present invention.

The invention discloses a kind of inductance type ballast, its inside is provided with a plurality of inductance, can be when line voltage raises or requirement as per the schedule, reduce the actual power of gaseous discharge lamp, reduce energy loss, and delay the aging of gaseous discharge lamp, prolong its useful life.

Referring to Fig. 1, Fig. 1 is the structural representation of a kind of inductance type ballast disclosed by the invention.

Comprise: single-chip microcomputer 1, acquisition module 2, power module 3, driver module 4, power carrier module 5, the first relay K A1, the second relay K A2, first inductance L 1, second inductance L 2 and the 3rd inductance L 3.

Wherein, acquisition module 2 is connected with single-chip microcomputer 1, the voltage signal in the electrical network is gathered, and the voltage signal that collects is sent in the single-chip microcomputer 1 through after the insulation blocking; Power module 3 is used to single-chip microcomputer 1 power supply, and its input is connected with zero line N with the live wire L of electrical network respectively, and its output is connected with single-chip microcomputer 1, and the civil power in the electrical network is carried out generating the low-voltage dc power supply that single-chip microcomputer 1 can be used after rectification, filtering, the voltage stabilizing; The input of driver module 4 is connected with single-chip microcomputer 1, receives the instruction that single-chip microcomputer 1 sends; The input of power carrier module 5 is connected with electrical network, output is connected with single-chip microcomputer 1, receives the power carrier signal that the Centralized Controller (not shown) of street lamp illumination system sends, and power carrier signal is carried out demodulation and is sent in the single-chip microcomputer 1; Single-chip microcomputer 1 generates instruction according to voltage signal that receives and power carrier signal, and is sent in the driver module 4; The input of driver module 4 is connected with single-chip microcomputer 1, its output is connected with the coil of the first relay K A1 and the coil of the second relay K A2 respectively, and the coil of the commands for controlling first relay K A1 that sends according to single-chip microcomputer 1 and the coil of the second relay K A2 get electric or dead electricity; And second inductance L 2, first inductance L 1 and the 3rd inductance L 3 are connected successively, first fixed contact of the first relay K A1 is connected with the common port of second inductance L 2 and first inductance L 1, its second fixed contact is connected with the other end of second inductance L 2, its moving contact is connected with acquisition module 2, first fixed contact of the second relay K A2 is connected with the common port of first inductance L 1 and the 3rd inductance L 3, its second fixed contact is connected with the other end of the 3rd relay L3, its moving contact is connected with the end of gaseous discharge lamp L4, the other end of gaseous discharge lamp L4 is connected with electrical network, is parallel with trigger 6 at the two ends of gaseous discharge lamp L4.

The course of work to above-mentioned inductance type ballast describes below.

In the first half of the night of street lamp (being gaseous discharge lamp) work, the power consumption in city is bigger, the load that is electrical network is bigger, this causes the voltage of electrical network lower, single-chip microcomputer 1 sends instruction to driver module 4, and the coil of controlling the first relay K A1 and the second relay K A2 by driver module 4 gets, this moment, the moving contact of the first relay K A1 was positioned at its first fixed contact place, the moving contact of the second relay K A2 is positioned at its first fixed contact place, and first fixed contact of the first relay K A1 is connected with the common port of second inductance L 2 and first inductance L 1, the moving contact of the first relay K A1 is connected with acquisition module 2, first fixed contact of the second relay K A2 is connected with the common port of first inductance L 1 and the 3rd inductance L 3, the moving contact of the second relay K A2 is connected with the end of gaseous discharge lamp L4, so have only in first inductance L, 1 access circuit this moment, Inductive ballast carries out current limliting to gaseous discharge lamp, and it is worked under the rated condition.

In some time period, when the gas discharge light working voltage surpasses 220V, by the voltage signal in the acquisition module 2 collection electrical networks, and this voltage signal is sent in the single-chip microcomputer 1, single-chip microcomputer 1 compares the actual voltage signal that receives and specified magnitude of voltage, if the actual voltage value that receives surpasses at 5%～10% o'clock of load voltage value, single-chip microcomputer 1 sends instruction to driver module 4, and the coil losing electricity by the driver module 4 control first relay K A1, behind the coil losing electricity of the first relay K A1, its moving contact will be transformed into its second fixed contact place, and first inductance L 1 and second inductance L 2 are with in the while place in circuit at this moment, and inductance value total in the circuit increases, the impedance of circuit increases, make the electric current in the circuit reduce, just the operating current of gaseous discharge lamp reduces, and can delay the aging of gaseous discharge lamp, prolong its useful life, and along with reducing of electric current, the power of gaseous discharge lamp will reduce thereupon, reduce the energy loss of gaseous discharge lamp.

According to national regulation, in the normal illumination period, street lamp should reach the illumination of standard code, do not needing the normal illumination period (as after midnight), minimizing along with the pedestrian, can only keep the safe illumination of street lamp, safe illumination is generally half of standard illumination, and need reduce the power of gaseous discharge lamp this moment significantly.Single-chip microcomputer 1 storage inside is shown if having time, requirement according to timetable, single-chip microcomputer 1 sends instruction to driver module 4 after reaching certain time point, and the coil losing electricity by the driver module 4 control second relay K A2, behind the coil losing electricity of the second relay K A2, its moving contact will be transformed into its second fixed contact place, this moment first inductance L 1, in second inductance L 2 and the 3rd inductance L 3 while place in circuit, the impedance of circuit increases, make the electric current in the circuit further reduce, by setting first inductance L 1, the inductance value of second inductance L 2 and the 3rd inductance L 3 significantly reduces the power of gaseous discharge lamp when the whole place in circuit of three.

Timetable in the single-chip microcomputer 1 is determined by the Centralized Controller in the street lamp illumination system, in Centralized Controller, store timetable, at system initialization or when needing timetable in the change single-chip microcomputer 1, Centralized Controller sends power carrier signal to power carrier module 5, include the schedule information that power operation falls in control single chip computer 1 in this power carrier signal, 5 pairs of power carrier signal of power carrier module carry out being sent in the single-chip microcomputer 1 after the demodulation, single-chip microcomputer 1 is stored this timetable at this moment, and falls power operation according to the requirement of this timetable.Centralized Controller has been realized Long-distance Control to inductance type ballast by being provided with of power carrier module 5.

Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.

It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.

Claims

1. inductance type ballast, it is characterized in that, comprising: first relay, second relay, first inductance, second inductance, the 3rd inductance, single-chip microcomputer, the acquisition module that is connected with described single-chip microcomputer respectively, power module, power carrier module and driver module;

Described power module is described single-chip microcomputer power supply;