CN202406092U - Touch timing switch with time-base circuit - Google Patents
Touch timing switch with time-base circuit Download PDFInfo
- Publication number
- CN202406092U CN202406092U CN2011205652501U CN201120565250U CN202406092U CN 202406092 U CN202406092 U CN 202406092U CN 2011205652501 U CN2011205652501 U CN 2011205652501U CN 201120565250 U CN201120565250 U CN 201120565250U CN 202406092 U CN202406092 U CN 202406092U
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- base circuit
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- timing switch
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Abstract
The utility model relates to a touch timing switch with a time-base circuit. The touch timing switch with the time-base circuit consists of a 12V DC power supply, a touch electrode MO, a monostable circuit and a relay control circuit; and the model of the time-base circuit IC1 is NE555. The touch timing switch with the time-base circuit, provided by the utility model, aims to solve problem that some electronic instruments, illuminating lamps or household appliances and other equipment are required to be powered on or powered off after a certain period of time, or achieve the purposes of electricity saving and safe electricity utilization of high-power electric devices. By adopting the touch timing switch, firstly, reduction of unnecessary power waste is facilitated, and secondly, peak hour of power utilization of the mains line is effectively avoided, the load of the mains line is reduced and the safety in electricity utilization is guaranteed.
Description
Technical field
The utility model belongs to the electron controls technology field, relates to a kind ofly touching timing switch with time-base circuit.
Background technology
Run into unit, the household electricity line load is too heavy, the use of can not switching on simultaneously of two groups of high-power electric appliances needs the artificial high-power electric appliance with different to power up respectively in chronological order, so that subtract the live load and the Electrical Safety of the light circuit of power supply.Power consumption equipments such as some electronic instrument, lighting or household electrical appliance, energising start or outage shutdown after a period of time of need delaying time sometimes.
In order effectively to resolve above-mentioned practical problem, be principle not change original large power-consuming equipment and supply line, the utility model can satisfy the electricity consumption needs of various electrical equipment, can reach the purpose of electrical energy saving and safety utilization of electric power again.
Below specify this time-base circuit and touch the correlation technique content of timing switch in implementation process.
The utility model content
Goal of the invention and beneficial effect: it is in order to solve equipment such as some electronic instrument, lighting or household electrical appliance that the described time-base circuit of the utility model touches timing switch; Sometimes need delay time energising start or outage shutdown after a period of time, or solve the high-power electric appliance economize on electricity and safety utilization of electric power is a purpose.Using it one is to help to reduce unnecessary power wastage; The 2nd, load, the guarantee Electrical Safety that can effectively evade line peak of power consumption, reduction line.
The circuit working principle: IC1 is a slice 555 time-base circuits in the utility model circuit; Circuit is connected into monostable circuit; Owing to the non-inductive voltage of touch electrode MO, electrochemical capacitor C2 is through the 7 pin discharge offs of time-base circuit IC1 at ordinary times, and 3 pin of time-base circuit IC1 are output as low level; The relay J coil does not have direct voltage and is in release condition, and electric light does not work;
When needs are turned on electric light; Have a touch with touch electrode MO with finger; The noise signal voltage of human body sensing is added to the 2 pin trigger ends of time-base circuit IC1 by coupling capacitance C1; Make 3 pin of time-base circuit IC1 become the output high level by low level at once, the coil of relay J gets electric adhesive, and electric light is lighted.Simultaneously, end the 7 pin inside of time-base circuit IC1, and the 12V DC power supply is just given electrochemical capacitor C2 charging through potentiometer RP, and timing circuit just picks up counting;
When the voltage on the electrochemical capacitor C2 rise to 12V DC power supply voltage 2/3 the time; Electrochemical capacitor C2 makes 3 pin of time-base circuit IC1 change low level into by the output high level through the 7 pin discharge of time-base circuit IC1, and timing finishes; The coil losing electricity of relay J discharges, and the electric light outage is extinguished.
If be used to control other loads, its operation principle and the course of work are the same.
Technical characterictic: time-base circuit touches timing switch, is made up of 12V DC power supply, touch electrode MO, monostable circuit, control relay circuit, and its characteristic comprises:
Monostable circuit: form by touch electrode MO, coupling capacitance C1, time-base circuit IC1, potentiometer RP, electrochemical capacitor C2; The model that time-base circuit IC1 adopts is NE555; Touch electrode MO connects the end of coupling capacitance C1; 2 pin of another termination time-base circuit IC1 of coupling capacitance C1,6 pin of time-base circuit IC1 and 7 pin connect the end of potentiometer RP and the positive pole of electrochemical capacitor C2, the anodal VCC of the other end of potentiometer RP and lever arm connection circuit thereof; The 1 pin connection circuit ground GND of the negative pole of electrochemical capacitor C2 and time-base circuit IC1, the anodal VCC of 4 pin of time-base circuit IC1 and 8 pin connection circuits;
Control relay circuit: be made up of relay J and transwitch diode D1,3 pin of time-base circuit IC1 are succeeded an end and the transwitch diode D1 negative pole of electrical equipment J coil, the anodal connection circuit ground GND of the other end of relay J coil and transwitch diode D1.
The positive pole of 12V DC power supply links to each other with circuit anode VCC, and the negative pole of 12V DC power supply links to each other with circuit ground GND.
Description of drawings
Accompanying drawing 1 is the circuit working schematic diagram that time-base circuit touches timing switch.
Embodiment
Implement according to the circuit working schematic diagram of the touch of time-base circuit shown in the accompanying drawing 1 timing switch and the specification requirement of description of drawings and the following stated, can realize the utility model.
The selection of components and parts and technical parameter thereof
IC1 is a time-base circuit, and model is selected NE555 for use, is encapsulated as 8 pin DIP, each pin function: 1 pin is circuit ground GND; 2 pin are trigger end; 3 pin outputs; 4 pin preset ends; 5 pin are control voltage; 6 pin thresholdings (threshold value); 7 pin are discharge end; 8 pin are dc power anode VCC;
C1 is a coupling capacitance, and capacity is 0.1 μ F; C2 is an electrochemical capacitor, and capacity is 100～2000 μ F/25V; The resistance of potentiometer RP is 1.2～1.8M Ω;
D1 is the transwitch diode, and its model can be selected 1N4148 for use, perhaps selects silicon rectifier diodes such as 1N4001 for use;
MO is a touch electrode, and touch electrode MO selects ￠ 12mm or the copper sheet metal making of 10mm * 10mm for use, and the lead-in wire that connects touch electrode MO is unsuitable oversize, otherwise lead-in wire is responded to AC signal easily and made circuit generation misoperation;
J direct current relay, model are JQX-13F-12V, and relay J has 5 pins, and the coil of relay J has 2 pins, and power output has 3 pins; 3 pin functions are respectively: the common of relay J (moving contact), fixed contact are normally opened contact and normally-closed contact.
Circuit production main points and debugging
Time-base circuit touches the circuit of timing switch so long as the components and parts performance is intact, gets final product operate as normal after installation, the errorless energising of welding;
Circuit regularly length determines empirical equation: T1=1.1 * RP * C2 by the resistance of potentiometer RP, the capacity of electrochemical capacitor C2; By the component values of being given among the embodiment, the timing scope of circuit is 2～40 minutes; According to supply line and electrical appliance need of work, the capacity of electrochemical capacitor C2 can be selected in 100 μ F to 2000 μ F scopes, and the maximum value of potentiometer RP is no more than 1.8M Ω;
When circuit debugging, can not overturn if find the long-time unlimited time-delay of monostable circuit, should check at first whether electrochemical capacitor C2 exists leaky, secondly be whether the resistance of inspection potentiometer RP is too big.If need to prolong the circuit operation time, should be first-selection with the capacity that increases electrochemical capacitor C2, help to eliminate the influence that electrochemical capacitor C2 self electric leakage is produced the circuit delay reliability like this.
Claims (3)
1. a time-base circuit touches timing switch, is made up of 12V DC power supply, touch electrode MO, monostable circuit, control relay circuit, it is characterized in that:
Monostable circuit is made up of touch electrode MO, coupling capacitance C1, time-base circuit IC1, potentiometer RP, electrochemical capacitor C2; The model that time-base circuit IC1 adopts is NE555; Touch electrode MO connects the end of coupling capacitance C1; 2 pin of another termination time-base circuit IC1 of coupling capacitance C1,6 pin of time-base circuit IC1 and 7 pin connect the end of potentiometer RP and the positive pole of electrochemical capacitor C2, the anodal VCC of the other end of potentiometer RP and lever arm connection circuit thereof; The 1 pin connection circuit ground GND of the negative pole of electrochemical capacitor C2 and time-base circuit IC1, the anodal VCC of 4 pin of time-base circuit IC1 and 8 pin connection circuits;
Control relay circuit is made up of relay J and transwitch diode D1, and 3 pin of time-base circuit IC1 are succeeded an end and the transwitch diode D1 negative pole of electrical equipment J coil, the anodal connection circuit ground GND of the other end of relay J coil and transwitch diode D1.
2. time-base circuit according to claim 1 touches timing switch, and it is characterized in that: the positive pole of 12V DC power supply links to each other with circuit anode VCC, and the negative pole of 12V DC power supply links to each other with circuit ground GND.
3. time-base circuit according to claim 1 touches timing switch, it is characterized in that: touch electrode MO selects for use ￠ 12mm or the copper sheet metal of 10mm * 10mm to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205652501U CN202406092U (en) | 2011-12-30 | 2011-12-30 | Touch timing switch with time-base circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205652501U CN202406092U (en) | 2011-12-30 | 2011-12-30 | Touch timing switch with time-base circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202406092U true CN202406092U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205652501U Expired - Fee Related CN202406092U (en) | 2011-12-30 | 2011-12-30 | Touch timing switch with time-base circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202406092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955006A (en) * | 2016-06-20 | 2016-09-21 | 周芸 | Fast electronic timer for kitchen |
-
2011
- 2011-12-30 CN CN2011205652501U patent/CN202406092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955006A (en) * | 2016-06-20 | 2016-09-21 | 周芸 | Fast electronic timer for kitchen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20121230 |