CN100356653C

CN100356653C - Terminal energy-saving controller

Info

Publication number: CN100356653C
Application number: CNB2005100459808A
Authority: CN
Inventors: 谷雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-09
Filing date: 2005-03-09
Publication date: 2007-12-19
Anticipated expiration: 2025-03-09
Also published as: CN1832291A

Abstract

The present invention relates to a terminal energy saving controller, which relates to the energy saving technology of the low voltage electric apparatus and aims to the defects that the terminal energy saving technology has the poor effect and an electric capacitor is easy to damage. The loading side of an automatic air switch is connected with the electric capacitor through an AC contact main contact, and a controlling circuit is not be needed, wherein after a power supply is connected with a coil of an AC contactor, a serially connected return circuit of a normally opened contact of a time relay, a return circuit of a power light, the coil of a time relay, and a serially connected return circuit of a normally closed temperature controlling switch, a normally closed contact and a normally open temperature controlling switch in parallel, the power supply is connected with a serially connected return circuit of a primary coil of a power supply transformer of a blower fan. A secondary coil of the power supply transformer of the blower fan is connected with a bridge type rectifier, and the DC output end of the bridge type rectifier is connected with the blower fan. A working indicator lamp is connected with a power supply through a main contact of the AC contactor. The electric capacitor in a controller can work after the electric capacitor dodge the impulse of an electric current and the voltage under the control of a circuit. The present invention has the advantages of good electric saving effect and long service life.

Description

A kind of terminal energy-saving controller

Technical field

The present invention relates to a kind of low-voltage electrical apparatus, especially about the energy-conservation controller of inductive load terminal.

Background technology

At present; for making inductive load in service energy-conservation; the one, adopt at mains switch load side and inductive load and be connected with the power-saving technique of capacitor; the 2nd, adopt the power-saving technique that on the power supply main line, is connected to the shared mode of whole loads of lumped capacitance device by switch; though two kinds of modes play certain power savings; but Chang Yin does not build entirely the capacitor protection technology; stop; the crest voltage that is produced when sending electricity; electric current; make it breakdown or burn; also often because of overheated damage of capacitor operation; so not only increase operating cost, influence power savings again, desirable not to the utmost.

Summary of the invention

At above-mentioned weak point, the present invention will provide a kind of line construction simple, safe and reliable, work behind the high voltage that moment produced in the IC loop when electric current peak and voltage ebb and reduced voltage starting were changed in the time of leaving starting automatically, power savings is remarkable, cost is low, the tangible terminal energy-saving controller of the social benefit and the performance of enterprises.

The technical solution adopted for the present invention to solve the technical problems is: automatic air-break switch is equipped with on controller box top, A.C. contactor, the time relay, bottom are equipped with power supply indicator, relay indicating light, capacitor, fan power transformer, bridge rectifier; The capacitor body surface is equipped with often leaves temperature detect switch (TDS), normally closed temperature detect switch (TDS); The capacitor adjacent area is provided with blower fan, the annexation of above-mentioned electric component is: the automatic air-break switch load side links to each other with capacitor through the A.C. contactor main contact, select wherein two-phase as the control power supply from the automatic air-break switch load side, the loop that links to each other with this power supply has: ac contactor coil and the time relay normal opened contact loop of contacting; The power supply indicator loop; Time relay coil and normally closed temperature detect switch (TDS) polyphone loop; After time relay normally closed contact and the parallel connection of Chang Kai temperature detect switch (TDS) with fan power transformer primary winding polyphone loop, fan power transformer secondary coil links to each other with bridge-type drag flow device, dc output end links to each other with blower fan, and relay indicating light links to each other with the control power supply through the A.C. contactor main contact.

Beneficial effect of the present invention: line construction is simple, safe and reliable, work behind the high voltage that moment produced in the LC loop when electric current peak and voltage ebb and reduced voltage starting were changed in the time of avoiding starting automatically, power savings is remarkable, cost is low, volume is little, convenient to be installed, and can bring obvious benefit to society and enterprise.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples

Fig. 1 is structure of the present invention and elementary diagram in kind

Fig. 2 is an electric component elementary diagram among Fig. 1

Among the figure: 1 automatic air-break switch; 2 A.C. contactor main contacts; 3 capacitors; 4 relay indicating lights; 5 ac contactor coils; 6 time relay normal opened contacts; 7 power supply indicators; 8 time relay coils: 9 normally closed temperature detect switch (TDS)s; 10 time relay normally closed contacts; 11 fan power transformers; 12 often drive temperature detect switch (TDS); 13 bridge rectifiers; 14 blower fans; 15 controller box.

Embodiment

Automatic air-break switch (1) is housed in controller box (15); A.C. contactor with A.C. contactor main contact (2) and ac contactor coil (5); Has time relay coil (8), time relay normal opened contact (6), the time relay of time relay normally closed contact (10); Also has power supply indicator (7), relay indicating light (4), capacitor (3), blower fan transformer (11), bridge-type one drag flow device (13).The capacitor body surface is equipped with often leaves temperature detect switch (TDS) (12), normally closed temperature detect switch (TDS) (9), and the blower fan (14) that is used to dispel the heat also is equipped with in its near region.

The annexation of above-mentioned electric component is: automatic air-break switch (1) load side links to each other with capacitor (3) through A.C. contactor main contact (2), and selecting wherein from automatic air-break switch (1) load side, two-phase has with the loop that this power supply links to each other as the control power supply: ac contactor coil (5) and time relay normal opened contact (6) polyphone loop; Power supply indicator (7) loop; Time relay coil (8) and normally closed temperature detect switch (TDS) (9) polyphone loop; Time relay normally closed contact (10) and often open temperature detect switch (TDS) (12) back in parallel and fan power transformer (11) primary winding polyphone loop; Fan power transformer (11) secondary coil links to each other with bridge rectifier (13), and dc output end links to each other with blower fan (14), and relay indicating light (4) links to each other with the control power supply through A.C. contactor main contact (2).

Electric component is determined each components and parts specifications and models according to the load power size, and wherein normally closed temperature detect switch (TDS) temperature control scope is elected 65 ℃ ± 2 ℃ as, often opens temperature detect switch (TDS) temperature control scope and elects 60 ℃ ± 2 ℃ as, time relay setting value operate time scope 60S ± 20%.

Automatic air-break switch power import end in the terminal energy-saving controller directly links to each other with inductive electrical appliance power end daughter board, electrical appliance get electric after, automatic air-break switch closes, the time relay picks up counting, treat the capacitor in the terminal energy-saving controller, after electric current peak and voltage ebb and reduced voltage starting moment in the LC loop in when conversion produces pulse high-voltage when having avoided starting in timing 60S, time relay normal opened contact (6) closure, ac contactor coil (5), its main contact (2) closure, capacitor (3) work compensates inductive load (as motor).

When capacitor (3) body is warmed up to 60 ℃, often open the closed blower fan of temperature detect switch (TDS) (12) (14) work, make capacitor (3) cooling.

When capacitor (3) body is warmed up to 65 ℃, normally closed temperature detect switch (TDS) (9) disconnects, time relay coil (8) dead electricity, time relay normal opened contact (6) is opened, ac contactor coil (5) dead electricity, A.C. contactor main contact (2) disconnects, and capacitor (3) breaks termination work from the loop, time relay normally closed contact (10) closure, blower fan (14) work.

When capacitor (3) body body temperature degree fell back to below 65 ℃, because of normally closed temperature switch (9) returns to normal, capacitor under the effect of control system (3) began again to put into operation.

Claims

1, a kind of terminal energy-saving controller includes capacitor, it is characterized in that being provided with in the controller box automatic air-break switch, A.C. contactor, the time relay, power supply indicator, relay indicating light, the fan power transformer, bridge rectifier, capacitor body surface are provided with often drives temperature detect switch (TDS), normally closed temperature detect switch (TDS), the capacitor adjacent area is provided with blower fan, and above-mentioned electric component annexation is:

The automatic air-break switch load side links to each other with capacitor through the A.C. contactor main contact;

Select two-phase from the automatic air-break switch load side and make the control power supply;

The control power supply links to each other with the series loop of ac contactor coil with time relay normal opened contact;

The control power supply links to each other with the power supply indicator loop;

The control power supply links to each other with the series loop of time relay coil and normally closed temperature detect switch (TDS);

Form series loop with fan power transformer primary winding after time relay normally closed contact and the parallel connection of Chang Kai temperature detect switch (TDS), this series loop links to each other with the control power supply;

Fan power transformer secondary coil links to each other with bridge rectifier, and its dc output end links to each other with blower fan;

Relay indicating light links to each other with the control power supply through the A.C. contactor main contact.