CN2671689Y

CN2671689Y - Electric controller for new high pressure static fume purifier

Info

Publication number: CN2671689Y
Application number: CN 03261057
Authority: CN
Inventors: 赵金文
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-08
Filing date: 2003-08-08
Publication date: 2005-01-19
Anticipated expiration: 2013-08-08

Abstract

The utility model discloses an electric controller for the new high-voltage electrostatic fume purifier, belonging to the kitchen appliance which controls the dust separating of the fume by adopting the micro-electronics technology. The utility model is characterized in that: an adjustable circuit, a starting-delaying circuit, an oscillating circuit and a switch power supply are arranged in the main control circuit of the purifier, and a high voltage transformer is connected after the adjustable circuit, the starting-delaying circuit, the oscillating circuit and the switch power supply are orderly connected to output the high voltage; a feedback protecting circuit, a resetting circuit, a counting circuit, an adjustable resetting delay circuit, etc, are also arranged in the main control circuit of the purifier; when the malfunctions of the over flow, the over pressure are come out, the strong protect function is provided. The quantity of the electric controllers is corresponding with the quantity of the high-voltage electrode plates. The utility model solves the problems of that: the three phase power supply of the exhaust blower is unbalance; the condensation and the creepage are generated among the high-voltage electric field electrodes. The protection function is strong, the maintenance is little, the operation is reliable, and the service life of the exhaust blower and the purifier is prolonged.

Description

The electric control gear of novel high-pressure electrostatic oil and smoke cleaner

Technical field

The utility model relates to the kitchen articles that adopt microelectric technique to realize the dedusting of control oil smoke.

Background technology

At present in the kitchen high-voltage static electricity fume clarifier product that uses, great majority adopt the Alternating Current Power Supply of single-phase 220V, and the air exhauster power supply of this 220V alternating current source motor synchronizing work, be with the line in the used 380V three phase mains of air exhauster and zero line 220V power supply as clarifier, this practice causes air exhauster 380V power supply three-phase imbalance to occur, cause air exhauster to be burnt easily, shorten its service life, influence the normal eliminating of oil smoke; In addition, in the fume purifying process, oarse-grained oil smoke is often arranged, damage control circuit attached between the high pressure both positive and negative polarity and produce big electric current, broken ring high-voltage electrostatic field, so that do not have high pressure output, and influenced clean-up effect, strengthened maintenance load.

Summary of the invention

The utility model is exactly to overcome the shortcoming that above-mentioned prior art exists, and a kind of electric control gear with novel high-pressure electrostatic oil and smoke cleaner of strong defencive function, few maintenance, reliable operation is provided.

The technical solution of the utility model is as follows: electric control gear of the present utility model still comprises cabinet and control circuit board, control circuit is provided with power circuit, the governor circuit that connects step by step, high-tension transformer from high pressure to battery lead plate that can export, consider that air exhauster and cooking fume remover should use common switch, thereby still adopt and in the 380V three phase mains that air exhauster uses, get one line and a zero line as supplying with the required 220V power supply of cooking fume remover electric control gear.Architectural feature of the present utility model is: the formation of governor circuit is; adjustable startup delay circuit 2., oscillating circuit 3., 4. Switching Power Supply connect in turn; 5. 4. Switching Power Supply connect high-tension transformer again; 6. 5. elementary of high-tension transformer also connect feedback protection circuit; feedback protection circuit 6. with reset circuit 7., counting circuit 8., 9. the adjustable delay circuit that resets be connected in turn, 3. the adjustable delay circuit output 9. that resets control oscillating circuit again.The quantity of described control circuit board is corresponding with the quantity of the electrode plate with high voltage of cooking fume remover, 1: 1 ratio.And decide the supporting quantity of control circuit by the size of cooking fume remover, be generally 1 cover, 3 covers, 5 covers, 6 covers.

Major advantage of the present utility model is: 1, control circuit can be by three groups of single-phase 220V power supply power supplies, realize independently-powered by a phase and a zero line of being connected on user's air exhauster 380V three phase mains separately, solved the problem of power supply three-phase imbalance in the conventional art, when the circuit kit plate is housed, can pass through set delay circuit, make the operation of clarifier lag behind air exhauster, solve the problems referred to above; 2, control circuit corresponding with the quantity of electrode plate with high voltage (1: 1), when one group of control circuit quit work for some reason, other groups are work as usual still, thereby the problem that complete machine stops to purify can not occur; 3, owing in the control circuit delay circuit of resetting is arranged, when causing (half punch-through) when creepage because of dewfall between the positive and negative electrode in the clarifier high voltage electric field, then this reset circuit is operated in and delays time by delay circuit, make air exhauster dry up dewfall, automatically recover the high-voltage electrostatic field, guarantee the clarifier operate as normal, do not influence fume purifying; 4, owing to be provided with overcurrent-overvoltage protecting circuit, when high-tension transformer was met short circuit by chance, this circuit working forced oscillator to quit work, and has protected equipment; In addition, the oscillating circuit frequency adjustable can adopt different frequency according to the absorption affinity size, makes the electrostatic high-pressure height adjustable; Also be provided with intelligent counting circuit, make equipment performance more perfect.In a word, the utility model defencive function is strong, and clarifier is keeped in repair less, reliable operation, and prolonged life-span of air exhauster greatly, remarkable in economical benefits.

Description of drawings

Fig. 1 is the utility model circuit structure block diagram

Fig. 2-1 is the utility model circuit theory diagrams

Fig. 2-2 is the utility model circuit theory diagrams

The specific embodiment

Referring to Fig. 2-1, Fig. 2-2, described adjustable startup delay circuit 2., adjustable reset delay circuit 9., reset circuit structure 7. is, the branch road one termination power Vcc that diode D3 is in parallel with resistance R H2, the other end meets parallel branch and the six Schmidt trigger U1:B of charging capacitor C14 and switching tube Q4 respectively, the base stage of trigger U1:B serial connection light emitting diode V2, resistance R 8 and triode Q3, the emitter stage of triode Q3, colelctor electrode connect power circuit 1, oscillating circuit 3 respectively.Vcc12V charges to C14 electric capacity by D3 and RH2 parallel connection, resistance by RH2 decides delay time (when RH2 resistance is 390K, delay time was about for 20 seconds), when C14 charging reaches the 1/2Vcc level when above, the 3rd pin of U1:B is a high level, the 4th pin is transmitted low level, and Q3 conducting is at this moment started working oscillating circuit.On adjustable startup and the adjustable delay circuit that resets also respectively and be connected to hand switch.

Described oscillating circuit structure 3. is, be provided with vibration chip IC 1, timing resistor RH1, R9, timing capacitor C13, resistance R H1 and the pin 2, the pin 3 that connect vibration chip IC 1 after resistance R 9 is connected respectively, the pin 3 of chip IC 1 also connects capacitor C 13, the pin 5 of chip IC 1, pin 7 connect the canopy utmost point of Switching Power Supply low-end switch pipe Q2 4., the canopy utmost point of high-end switch pipe Q1 respectively, the pin 6 of chip IC 1 connects the source electrode of high-end switch pipe Q1, and it is the high pressure end that suspends that the pin 1 of chip IC 1 connects power supply, pin 4 ground connection, pin 8; The pulse signal of 5, the 7 pin output of vibration chip IC 1 is controlled the grid of low-end switch pipe Q2 and high-end switch pipe Q1 respectively; Present embodiment vibration chip IC 1 is selected L6569 and IR2155 chip for use.

4. described Switching Power Supply is connected in series with low-end switch pipe Q2 by high-end switch pipe Q1 and constitutes, the drain electrode of high-end switch pipe Q1 connects positive source, the source electrode of low-end switch pipe Q2 connects power cathode, the canopy utmost point of high and low end switch pipe connects vibration chip IC 1 through resistance R 7, R5 respectively, the source electrode of high-end switch pipe Q1 is connected with the drain electrode of low-end switch pipe Q2, and this link also meets the elementary energy storage coil GB1 of high-tension transformer.Switching tube Q1, Q2 select the IRFP460 type for use in the present embodiment.

Feedback protection circuit structure 6. is; be provided with photoelectrical coupler G1, six Schmidt trigger U1:E; cross-over connection connects the divider resistance R4 of high-tension transformer primary coil GB1 between input A, the B of photoelectrical coupler G1; on the input B of photoelectrical coupler G1, also be serially connected with dropping resistor R13; output 4 ground connection of photoelectrical coupler G1; output 5 connects power Vcc, connects the series arm of trigger U1:E and diode D4 through series resistance R10, R16 through resistance R 14 respectively, this series arm connection circuit 7. in the grid of switching tube Q4.When high-tension transformer time utmost point short circuit, by the electric current of elementary feedback through the R4 dividing potential drop, through the B end series resistance R13 signal after the step-down again, make 1 of optocoupler G1,2 pin get electric and conducting, because of photoelectric action make its 4, the also conducting of 5 pin, then make R14 directly over the ground, at this moment U1:E gets the 11st pin and becomes low level, and its 10th pin is a high level, and the electric current of output makes the Q4 conducting, then Bing Lian D3 and RH2 are through Q4 directly over the ground, make the 3rd pin of U1:B transfer low level to, the 4th pin high level, then triode Q3 ends, make the power supply current potential of 1 pin of the vibration chip IC 1 of oscillating circuit drop to zero and the failure of oscillations, not output of high-tension circuit; The pipe Q4 that opens the light selects 2N7000 for use.

8. described counting circuit is 9 adjustable counter circuits, its structure is, be provided with decimal system counting/distributor U2, toggle switch J3, six Schmidt trigger U1:A, U1:D, U1:F, U1:C, the pin 14 of counting/distributor U2,15 meet trigger U1:F respectively, U1:C, trigger U1:F meets switching tube Q4 and trigger U1:B again, trigger U1:C connects power Vcc through resistance R 11 again, the pin 1 of counting/distributor U2,4,5,6,7,9,10,11 connect the pin 1～8 of toggle switch J3 respectively, pin 3 '～9 ' of toggle switch J3,0 connects by trigger U1:A, trigger U1:D, light emitting diode V3, the series arm that resistance R 15 is formed, two ends of diode D2 respectively with trigger U1:B, the pin 2 ' of toggle switch connects, and the line of trigger U1:A and U1:D also is connected the pin 9 of toggle switch J3.When high-tension transformer time utmost point short circuit, make optocoupler G1 conducting, then R14 directly over the ground, at this moment the 11st pin of U1:E becomes low level, and its 10th pin is a high level, and the electric current of output makes the Q4 conducting, and D3 in parallel and RH2 are through Q4 directly over the ground, 13 pin that make U1:F are low level, and 12 pin change high level into, so in the 14th pin meter 1 number of U2.

In the present embodiment, decimal system counting/distributor U2 selects the CD4017 type for use, and (U1:A～F) selects the CD40106 type for use to described six Schmidt trigger U1.

Claims

1; a kind of electric control gear of novel high-pressure electrostatic oil and smoke cleaner; comprise cabinet and control circuit board; control circuit is provided with the power circuit that connects step by step; governor circuit; can export the high-tension transformer of high pressure to battery lead plate; it is characterized in that: the formation of governor circuit is; adjustable startup delay circuit 2.; oscillating circuit 3.; 4. Switching Power Supply connects in turn; 5. 4. Switching Power Supply connect high-tension transformer again; 6. 5. elementary of high-tension transformer also connect feedback protection circuit; feedback protection circuit 6. with reset circuit 7.; counting circuit 8.; 9. the adjustable delay circuit that resets connects in turn, and 3. the adjustable delay circuit output 9. that resets control oscillating circuit again.

2, the electric control gear of novel high-pressure electrostatic oil and smoke cleaner according to claim 1 is characterized in that: the quantity of described control circuit board is corresponding with the quantity of the electrode plate with high voltage of cooking fume remover, 1: 1 ratio.

3, the electric control gear of novel high-pressure electrostatic oil and smoke cleaner according to claim 1, it is characterized in that: described adjustable startup delay circuit 2., adjustablely reset delay circuit 9., reset circuit structure 7. is, branch road one termination power (Vcc) that diode (D3) is in parallel with resistance (RH2), the other end connects the parallel branch and six Schmidt triggers (U1:B) of charging capacitor (C14) and switching tube (Q4) respectively, trigger (U1:B) serial connection light emitting diode (V2), the base stage of resistance (R8) and triode (Q3), the emitter stage of triode (Q3), colelctor electrode connect power circuit (1) respectively, oscillating circuit (3); On adjustable startup and the adjustable delay circuit that resets also respectively and be connected to hand switch.

4, the electric control gear of novel high-pressure electrostatic oil and smoke cleaner according to claim 1, it is characterized in that: described oscillating circuit structure 3. is, be provided with vibration chip (IC1), timing resistor (RH1, R9), timing capacitor (C13), resistance (RH1) and the pin (2) that connects vibration chip (IC1) after resistance (R9) is connected respectively, pin (3), the pin (3) of chip (IC1) also connects electric capacity (C13), the pin (5) of chip (IC1), pin (7) connects the grid of Switching Power Supply low-end switch pipe (Q2) 4. respectively, the grid of high-end switch pipe (Q1), the pin (6) of chip (IC1) connects the source electrode of high-end switch pipe (Q1), and the pin (1) of chip (IC1) connects power supply, pin (4) ground connection, pin (8) is held for high pressure suspends; 4. described Switching Power Supply is connected in series formation by high-end switch pipe (Q1) with low-end switch pipe (Q2), the drain electrode of high-end switch pipe (Q1) connects positive source, the source electrode of low-end switch pipe (Q2) connects power cathode, the grid of high and low end switch pipe connects vibration chip (IC1) through resistance (R7, R5) respectively, the source electrode of high-end switch pipe (Q1) is connected with the drain electrode of low-end switch pipe (Q2), and this link also connects the elementary energy storage coil (GB1) of high-tension transformer.

5; the electric control gear of novel high-pressure electrostatic oil and smoke cleaner according to claim 1; it is characterized in that: feedback protection circuit structure 6. is; be provided with photoelectrical coupler (G1); six Schmidt triggers (U1:E); input (the A of photoelectrical coupler (G1); B) cross-over connection connects the divider resistance (R4) of high-tension transformer primary coil (GB1) between; on the input (B) of photoelectrical coupler (G1), also be serially connected with dropping resistor (R13); output (4) ground connection of photoelectrical coupler (G1); output (5) connects power supply (Vcc) through resistance (R14) respectively; through series resistance (R10; R16) connect the series arm of trigger (U1:E) and diode (D4), this series arm connection circuit 7. in the grid of switching tube (Q4).

6, the electric control gear of novel high-pressure electrostatic oil and smoke cleaner according to claim 1, it is characterized in that: 8. described counting circuit is 9 adjustable counter circuits, its structure is, be provided with decimal system counting/distributor (U2), toggle switch (J3), six Schmidt trigger (U1:A, U1:D, U1:F, U1:C), the pin (14 of counting/distributor (U2), 15) meet trigger (U1:F respectively, U1:C), trigger (U1:F) connects switching tube (Q4) and trigger (U1:B) again, trigger (U1:C) connects power supply (Vcc) through resistance (R11) again, the pin (1) of counting/distributor (U2), (4), (5), (6), (7), (9), (10), (11) connect the pin (1～8) of toggle switch (J3) respectively, the pin (3 '～9 ' of toggle switch (J3), 0) connects by trigger (U1:A), trigger (U1:D), light emitting diode (V3), the series arm that resistance (R15) is formed, two ends of diode (D2) respectively with trigger (U1:B), the pin (2 ') of toggle switch connects, and trigger (U1:A) and the line of (U1:D) also are connected the pin (9) of toggle switch (J3).