CN201332060Y

CN201332060Y - Energy-conserving environment-protecting type alternating current-direct current contactor controller

Info

Publication number: CN201332060Y
Application number: CNU2009200379934U
Authority: CN
Inventors: 虞培良; 刘汝宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-08
Filing date: 2009-01-08
Publication date: 2009-10-21
Anticipated expiration: 2019-01-08

Abstract

The utility model relates to an energy-conserving environmental-protecting type alternating current-direct current contactor controller suitable for various alternating current controller and alternating contactor for supplying power directly which belongs to the electrical appliance controller technical field. Then energy-conserving environment-protecting type alternating current-direct current contactor controller includes a surge restraining electrical source wave filter circuit, a high/low voltage switch circuit, an oscillating circuit, an isolation output circuit, a ballasting wave filter circuit, a low-power consumption maintaining circuit, a microcomputer controller, a switch commutation circuit, a current control circuit, a high voltage isolation circuit, a spring control circuit, an ACDC switch drive circuit, a voltage output circuit and an AC contactor, the low-power consumption maintaining circuit includes a ballasting wave filter circuit, an over voltage protection and high voltage release circuit. The controller can prolong service life of the contactor greatly.

Description

Energy saving and environment friendly AC/DC contactor controller

(1) technical field

The utility model relates to a kind of energy saving and environment friendly AC/DC contactor controller.Be applicable to the alternating-current controller of various models, also be applicable to the A.C. contactor of direct power supply.Belong to the appliance controling element technical field.

(2) background technology

Before the utility model was made, present contactor was not add controller.Such contactor tends to the instability because of line voltage, the time and tight the suction, Shi Ersong inhales and does not inhale.This brings great arcing chance and damage to the contact, also can therefore strengthen the probability of burning contactor line bag, thereby shortens the useful life of contactor greatly.

In addition, the various A.C. contactors of Shi Yonging nearly all are AC220V or 380V50Hz power supply in the market, because alternating current is the initial phase by positive and negative symmetry, the sine wave that amplitude, frequency equate is formed.It is by just bearing or by just existing a zero crossing to negative, being referred to as the zero point of sinusoidal quantity.We know that A.C. contactor itself is an inductive load, and it is actually by hundreds of line bags to thousands of circles forms, and can produce very big induction reactance for the alternating current of 50Hz.In real work, power factor (PF) is very low, accounts for 60% power factor, and a large amount of electric energy become reactive power and waste.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can prolong the contactor energy saving and environment friendly AC/DC contactor controller in useful life greatly.

The purpose of this utility model is achieved in that a kind of energy saving and environment friendly AC/DC contactor controller, it is characterized in that described AC/DC contactor controller comprises that surge suppresses electric source filter circuit, the high-low pressure commutation circuit, oscillating circuit, spacing output circuit, the ballast filter circuit, the low-power consumption holding circuit, microcomputerized controller, switch switching circuit, current control circuit, the high pressure buffer circuit, trigger control circuit, the ACDC conversion driving circuit, voltage follower circuit and A.C. contactor, described surge suppresses electric source filter circuit input termination AC220～380V power supply, output inserts high-low pressure commutation circuit and trigger control circuit respectively, the high-low pressure commutation circuit connects the oscillating circuit input, oscillating circuit connects the spacing output circuit output, the spacing output circuit input connects a ballast filter circuit input and a low-power consumption holding circuit input respectively, ballast filter circuit output inserts microcomputerized controller, this microcomputerized controller respectively with current control circuit input and switch switching circuit input, the current control circuit output links to each other with high pressure buffer circuit input, high pressure buffer circuit output links to each other with the trigger control circuit input, the trigger control circuit output links to each other with ACDC conversion driving circuit input with the switch switching circuit input, the switch switching circuit output links to each other with ACDC conversion driving circuit input, ACDC conversion driving circuit output links to each other with the voltage follower circuit input, voltage follower circuit output termination A.C. contactor; Described low-power consumption holding circuit comprises that ballast filter circuit and overvoltage protection and high pressure discharge circuit; ballast filter circuit input links to each other with described spacing output circuit output; ballast filter circuit output discharges circuit input end with overvoltage protection and high pressure and links to each other, and overvoltage protection and high pressure discharge circuit output end and link to each other with ACDC conversion driving circuit input.

The utility model replaces alternating current with direct current, with rectifying device the changing alternating current of direction is converted to the electric current of the single flow direction, and the electric current of the single flow direction equals the mean value of alternating current in the half cycle.

We know what the effect of power always realized by material, and attraction between the magnetic field or repulsive force are to realize by a kind of non-atom and non-molecular material magnetic field so.The basic reason that produces magnetic field is an electric current, produces even the magnetic field of permanent magnet also is electric molecular current.So-called electronics shunting is to rotate with electron spin formed by intraatomic electronics around atomic nucleus.This shows that there is indivisible contact in electric current and magnetic field, promptly magnetic field invariably accompanies electric current and exists, and electric current is surrounded by magnetic field forever.

Another characteristic of coil is a self inductance effect, when the electric current in the conductor changes, conductor itself just produces induced electromotive force, this electromotive force always hinders the variation of conductor Central Plains incoming current, change the electromagnetic induction phenomenon that produces self inductance as this electric current owing to conductor itself, because the self inductance effect of coil will form electric current and lag behind voltage, that is to say that electric current can not suddenly change, when the coil sudden power, coil externally can discharge the electric energy opposite with electric power polarity, and this phenomenon of coil is referred to as energy storage.The iron core that the contactor line is wrapped, it is to be formed by stacking by many thin silicon steel sheets, it has formed the loop of many closures.Because the magnetic flux by iron core changes along with the electric current work is periodic, so in these closed-loop paths, must there be induced electromotive force to produce, under the effect of this electromotive force, formed the electric current of many scrolls, this shows that eddy current is a kind of special shape of electromagnetic induction, eddy current generates heat in iron core and causes energy loss, and this loss is called eddy current loss, also is iron loss.The utility model has utilized the energy-storage function of coil, adds that a little electric current has remedied eddy current loss, reaches this specific function of magnetic field of keeping coil, has realized energy-conservation purpose.By experiment, AC power is at the coil of 80～100W, can satisfy the eddy current loss of general iron core with the power about direct current 3W, and the magnetic field of hold-in winding is constant, thereby reaches the reliable adhesive of A.C. contactor.

The utlity model has following characteristics:

1, energy-conservation

The general power of large-scale A.C. contactor is all at 80～90W, have in addition more than the 100W.Adopt the utility model controller, can make original A.C. contactor power savings up to more than 90%.Give an example: a 0.4A220V A.C. contactor power consumption 88W, its power consumption only needs to have fallen 82W less than 3W quickly behind the adapted controller of the present invention, and energy-saving effect is very obvious.

2, environmental protection, long service life

Because what A.C. contactor used is the 50Hz alternating current, can produce a kind of drone power frequency noise when electric current is crossed coil, little then several decibels, tens decibels, greatly then tens decibels, bring very big infringement for people's health.Moreover because the power consumption of line bag is big, temperature also can rise thereupon.General A.C. contactor can produce 50～60 ℃ high temperature in working long hours, to summer add 30～40 ℃ ambient temperature, its temperature rises faster.Work so the line bag is in the high temperature for a long time, its aging speed is greatly accelerated, even burns, shortened the useful life of A.C. contactor greatly, also can bring many potential safety hazards simultaneously, also bring a lot of thermal effects, bring many unnecessary losses to enterprise to environmental protection.Can overcome the above problems fully after using this controller.The one and since controller to the line bag be low-voltage, little current work source, therefore do not have any noise.The 2nd, because line bag low power operation does not have other heats except that the environment temperature, can greatly prolong the life-span of the core component line bag of A.C. contactor.Can say so life-span of line bag is equal to self of A.C. contactor in life-span, in addition A.C. contactor to have scrapped the line bag also excellent.

3, safe and reliable

Because this controller has used system controlled by computer, its action is accurate, adds the multiple protective measure of design, adds the Low-voltage Low-power operation, and very reliable, safe class greatly improves.

4, after A.C. contactor uses this controller, use line voltage greatly loose.Past 220V alternating current is just reduced to about 170V normally adhesive even is burnt the line bag.Controller has been arranged now, and pick-up voltage can be from the reliable adhesive of 170V～260V, and keep operating voltage can be in 70V～260V reliably working.This controller is applicable to the operating voltage of 380V.Behind this controller of A.C. contactor adapted of every operating voltage 380V, its pick-up voltage can be from the reliable adhesive of 200V～400V, and operating voltage can be at 80V～420V reliably working.This controller is applicable to various abominable power grid environments, is exactly that extremely unsettled voltage influences its person of outstanding talent's nothing, and the high pressure that it can adapt to 420V can adapt to the following low pressure of 100V again, and has automatic protection functions.When voltage falls to about 60V, it can be cut off the electricity supply automatically, can not constitute any damage harm to module and line bag.When voltage rises to about 170V again, it can be opened and reliable adhesive automatically.

(4) description of drawings

Fig. 1 is the theory diagram of the energy saving and environment friendly AC/DC contactor controller of the utility model.

(5) embodiment

Referring to Fig. 1, the energy saving and environment friendly AC/DC contactor controller that the utility model relates to mainly suppresses electric source filter circuit, high-low pressure commutation circuit, oscillating circuit, spacing output circuit, ballast filter circuit, low-power consumption holding circuit, microcomputerized controller, switch switching circuit, current control circuit, high pressure buffer circuit, trigger control circuit, ACDC conversion driving circuit, voltage follower circuit and A.C. contactor by surge and forms.Described surge suppresses electric source filter circuit input termination AC220～380V power supply, output inserts high-low pressure commutation circuit and trigger control circuit respectively, the high-low pressure commutation circuit connects the oscillating circuit input, oscillating circuit connects the spacing output circuit output, the spacing output circuit input connects a ballast filter circuit input and a low-power consumption holding circuit input respectively, ballast filter circuit output inserts microcomputerized controller, this microcomputerized controller respectively with current control circuit input and switch switching circuit input, the current control circuit output links to each other with high pressure buffer circuit input, high pressure buffer circuit output links to each other with the trigger control circuit input, the trigger control circuit output links to each other with ACDC conversion driving circuit input with the switch switching circuit input, the switch switching circuit output links to each other with ACDC conversion driving circuit input, ACDC conversion driving circuit output links to each other with the voltage follower circuit input, voltage follower circuit output termination A.C. contactor.

Described low-power consumption holding circuit discharges circuit by ballast filter circuit and overvoltage protection and high pressure and forms.Ballast filter circuit input links to each other with described spacing output circuit output, and ballast filter circuit output discharges circuit input end with overvoltage protection and high pressure and links to each other, and overvoltage protection and high pressure discharge circuit output end and link to each other with ACDC conversion driving circuit input.

Claims

1, a kind of energy saving and environment friendly AC/DC contactor controller, it is characterized in that described AC/DC contactor controller comprises that surge suppresses electric source filter circuit, the high-low pressure commutation circuit, oscillating circuit, spacing output circuit, the ballast filter circuit, the low-power consumption holding circuit, microcomputerized controller, switch switching circuit, current control circuit, the high pressure buffer circuit, trigger control circuit, the ACDC conversion driving circuit, voltage follower circuit and A.C. contactor, described surge suppresses electric source filter circuit input termination AC220～380V power supply, output inserts high-low pressure commutation circuit and trigger control circuit respectively, the high-low pressure commutation circuit connects the oscillating circuit input, oscillating circuit connects the spacing output circuit output, the spacing output circuit input connects a ballast filter circuit input and a low-power consumption holding circuit input respectively, ballast filter circuit output inserts microcomputerized controller, this microcomputerized controller respectively with current control circuit input and switch switching circuit input, the current control circuit output links to each other with high pressure buffer circuit input, high pressure buffer circuit output links to each other with the trigger control circuit input, the trigger control circuit output links to each other with ACDC conversion driving circuit input with the switch switching circuit input, the switch switching circuit output links to each other with ACDC conversion driving circuit input, ACDC conversion driving circuit output links to each other with the voltage follower circuit input, voltage follower circuit output termination A.C. contactor; Described low-power consumption holding circuit comprises that ballast filter circuit and overvoltage protection and high pressure discharge circuit; ballast filter circuit input links to each other with described spacing output circuit output; ballast filter circuit output discharges circuit input end with overvoltage protection and high pressure and links to each other, and overvoltage protection and high pressure discharge circuit output end and link to each other with ACDC conversion driving circuit input.