CN206490030U - A kind of SCM Based time relay - Google Patents

Abstract

The utility model discloses a kind of SCM Based time relay, by single-chip microcomputer, first resistor to the 5th resistance, the first electric capacity to the 3rd electric capacity, switch, rectifier, voltage-stabiliser tube, triode and relay group into, ON switch moment, because the 9th pin of single-chip microcomputer connects high level, the pin of single-chip microcomputer the 8th is set to export high level, triode saturation conduction, relay adhesive, load electrical appliance circuit is in self-sustaining state.After delayed 5min, the output of the pin of single-chip microcomputer the 8th is changed into low level, relay release, the FZ power-off of load electrical appliance.Compared with prior art, the utility model carries out delays time to control by single-chip microcomputer, is touched and controlled using relay, its control accuracy is high, delay is accurate, the value with popularization and application.

Description

A kind of SCM Based time relay

Technical field

The utility model is related to a kind of singlechip controller, more particularly to a kind of SCM Based time relay.

Background technology

The time relay refers to that after the actuating signal of (or removing) input is added, its output circuit need to be by defined accurate The true time just produces a kind of relay of great-jump-forward change (or contact action).It is a kind of use in relatively low voltage or small electric On the circuit of stream, for switching on or off the electrical equipment of high voltage, the circuit of larger current.Meanwhile, the time relay It is the control apparatus that a kind of utilization electromagnetic principle or theory of mechanics realize delays time to control.Its species is a lot, have air damping type, Power type and electron type etc..Its function respectively has quality, in line with excelsior spirit, it is necessary to constantly improve and innovation.

Utility model content

The purpose of this utility model is that provides a kind of SCM Based time relay to solve the above problems Device.

The utility model is achieved through the following technical solutions above-mentioned purpose：

The utility model by single-chip microcomputer, first resistor to the 5th resistance, the first electric capacity to the 3rd electric capacity, switch, rectifier, Voltage-stabiliser tube, triode and relay group into, single-chip microcomputer model CD4541, first resistor be 100 Ω, second resistance be 400 Ω, 3rd resistor is that 500 Ω, the 4th resistance are that 2k Ω, the 5th resistance are that 27k Ω, the first electric capacity are that 300uf, the second electric capacity are Bridge rectifier, the voltage stabilizing cast for the diode composition that 470uf, the 3rd electric capacity are 100uf, rectifier is four model IN4001 Number it is that 2CW1, triode are PNP type triode, relay model JRX-13F type 12V DC relays；

One end of AC power is connected with the first input end of rectifier and the first end of load electrical appliance simultaneously, alternating current The first end that second end in source is switched with the first end and relay normally open of switch simultaneously is connected, the second end of switch and the first electricity Resistance first end connection, relay normally open switch the second end simultaneously with load electrical appliance the second end and the first electric capacity first End connection, the second end of the first electric capacity is connected with the second end of first resistor and the end of input second of rectifier simultaneously, rectification The cathode output end of device simultaneously with the 14th pin of the first end, the first end of second resistance, single-chip microcomputer of the second electric capacity and after The first end connection of electrical equipment, the cathode output end of rectifier simultaneously with the second end of the second electric capacity, the positive pole of voltage-stabiliser tube, single-chip microcomputer The 5th pin, the 6th pin, the tenth pin, the emitter stage connection of the 7th pin and triode, the negative pole of voltage-stabiliser tube simultaneously with Second end of second resistance, the 12nd pin of single-chip microcomputer, the 13rd pin and the connection of the 9th pin, the first end of 3rd resistor It is connected simultaneously with the first end of the 3rd electric capacity and the first end of the 4th resistance, the second end of 3rd resistor and the first of single-chip microcomputer are drawn Pin is connected, and the second end of the 3rd electric capacity and the second pin of single-chip microcomputer are connected, the second end of the 4th resistance and the 3rd of single-chip microcomputer the Pin is connected, and the 8th pin of single-chip microcomputer is connected with the first end of the 5th resistance, the second end of the 5th resistance and the base of triode Pole is connected, and the colelctor electrode of triode and the second end of relay are connected.

The beneficial effects of the utility model are：

The utility model is a kind of SCM Based time relay, and compared with prior art, the utility model passes through Single-chip microcomputer carries out delays time to control, is touched and controlled using relay, its control accuracy is high, delay is accurate, the valency with popularization and application Value.

Brief description of the drawings

Fig. 1 is circuit structure schematic diagram of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings：

As shown in Figure 1：The utility model is by single-chip microcomputer IC, first resistor R1 to the 5th resistance R5, the first electric capacity C1 to Three electric capacity C3, switch S, rectifier DR, voltage-stabiliser tube DW, triode VT and relay K compositions, single-chip microcomputer IC models CD4541, First resistor R1 is that 100 Ω, second resistance R2 are that 400 Ω, 3rd resistor R3 are that 500 Ω, the 4th resistance R4 are 2k Ω, the 5th electricity It is that 27k Ω, the first electric capacity C1 are that 300uf, the second electric capacity C2 are that 470uf, the 3rd electric capacity C3 are that 100uf, rectifier DR are to hinder R5 Bridge rectifier, voltage-stabiliser tube DW models 2CW1, the triode VT of four model IN4001 diode composition are the pole of positive-negative-positive three Pipe, relay K-type number are JRX-13F type 12V DC relays；

AC power AC one end is connected with rectifier DR first input end and load electrical appliance FZ first end simultaneously, AC power AC the second end be connected with switching S first end and relay normally open switch K1 first end simultaneously, switchs the of S Two ends are connected with first resistor R1 first end, and relay normally open switch K1 the second end is simultaneously with loading the second of electrical appliance FZ End and the first electric capacity C1 first end are connected, the first electric capacity C1 the second end simultaneously with first resistor R1 the second end and rectifier The DR end of input second connection, rectifier DR cathode output end first end simultaneously with the second electric capacity C2, second resistance R2 First end, the connection of single-chip microcomputer IC the 14th pin and relay K first end, rectifier DR cathode output end simultaneously with Second electric capacity C2 the second end, voltage-stabiliser tube DW positive pole, single-chip microcomputer IC the 5th pin, the 6th pin, the tenth pin, the 7th draw Pin and triode VT emitter stage connection, voltage-stabiliser tube DW negative pole the second end simultaneously with second resistance R2, the of single-chip microcomputer IC 12 pins, the 13rd pin and the connection of the 9th pin, the first end of 3rd resistor R3 first end simultaneously with the 3rd electric capacity C3 Connected with the 4th resistance R4 first end, 3rd resistor R3 the second end is connected with single-chip microcomputer IC the first pin, the 3rd electric capacity C3 the second end is connected with single-chip microcomputer IC second pin, and the 4th resistance R4 the second end connects with single-chip microcomputer IC the 3rd pin Connect, single-chip microcomputer IC the 8th pin is connected with the 5th resistance R5 first end, the 5th resistance R5 the second end is with triode VT's Base stage is connected, and triode VT colelctor electrode is connected with relay K the second end.

Operation principle of the present utility model is as follows：

ON switch S moments, because single-chip microcomputer IC the 9th pin connects high level, make the output of the pins of single-chip microcomputer IC the 8th high Level, triode VT saturation conductions, relay K adhesives, load electrical appliance FZ circuits are in self-sustaining state.Delayed 5min Afterwards, the output of the pins of single-chip microcomputer IC the 8th is changed into low level, relay K releases, the FZ power-off of load electrical appliance.

General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model Claimed scope is by appended claims and its equivalent thereof.

Claims (1)

1. a kind of SCM Based time relay, it is characterised in that：By single-chip microcomputer, first resistor to the 5th resistance, first Electric capacity is to the 3rd electric capacity, switch, rectifier, voltage-stabiliser tube, triode and relay group into single-chip microcomputer model CD4541, first Resistance is that 100 Ω, second resistance are that 400 Ω, 3rd resistor are that 500 Ω, the 4th resistance are that 2k Ω, the 5th resistance are 27k Ω, One electric capacity is that 300uf, the second electric capacity are 470uf, the diode that the 3rd electric capacity is 100uf, rectifier is four model IN4001 Bridge rectifier, voltage-stabiliser tube model 2CW1, the triode of composition are PNP type triode, relay model JRX-13F types 12V DC relays；

One end of AC power is connected with the first input end of rectifier and the first end of load electrical appliance simultaneously, AC power The first end that second end is switched with the first end and relay normally open of switch simultaneously is connected, the second end of switch and first resistor First end is connected, and the second end of relay normally open switch connects with loading the second end of electrical appliance and the first end of the first electric capacity simultaneously Connect, the second end of the first electric capacity is connected with the second end of first resistor and the end of input second of rectifier simultaneously, rectifier The 14th pin and relay of cathode output end simultaneously with the first end, the first end of second resistance, single-chip microcomputer of the second electric capacity First end connection, the cathode output end of rectifier simultaneously with the second end of the second electric capacity, the positive pole of voltage-stabiliser tube, single-chip microcomputer the Five pins, the 6th pin, the tenth pin, the emitter stage connection of the 7th pin and triode, the negative pole of voltage-stabiliser tube is simultaneously with second Second end of resistance, the 12nd pin of single-chip microcomputer, the 13rd pin and the connection of the 9th pin, the first end of 3rd resistor is simultaneously It is connected with the first end of the 3rd electric capacity and the first end of the 4th resistance, the second end of 3rd resistor and the first pin of single-chip microcomputer connect Connect, the second end of the 3rd electric capacity and the second pin of single-chip microcomputer are connected, the second end of the 4th resistance and the 3rd pin of single-chip microcomputer Connection, the 8th pin of single-chip microcomputer is connected with the first end of the 5th resistance, and the second end of the 5th resistance and the base stage of triode connect Connect, the colelctor electrode of triode and the second end of relay are connected.