CN203909541U - Time switch supply socket - Google Patents
Time switch supply socket Download PDFInfo
- Publication number
- CN203909541U CN203909541U CN201420348497.1U CN201420348497U CN203909541U CN 203909541 U CN203909541 U CN 203909541U CN 201420348497 U CN201420348497 U CN 201420348497U CN 203909541 U CN203909541 U CN 203909541U
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- Prior art keywords
- terminal
- time switch
- chip microcomputer
- supply socket
- bidirectional triode
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- 230000001960 triggered effect Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a time switch supply socket, comprising a clock circuit; a single-chip microcomputer, connected with the clock circuit; a photoelectric coupler, provided with an input terminal connected with the single-chip microcomputer and an output terminal; a bidirectional triode thyristor, provided with a first main terminal, a second main terminal and a control terminal, wherein the first main terminal is arranged to connected with a first electrode of a power supply and the control terminal is connected with an output terminal of the photoelectric coupler; a socket provided with a first terminal and a second terminal, wherein the first terminal is connected with the second main terminal of the bidirectional triode thyristor, and the second terminal is arranged to connected with a second electrode of the power supply. According to the time switch supply socket provided by the utility model, an operation of time switch can be performed conveniently on electric appliances which are not provided with a time switch function.
Description
Technical field
The utility model relates to timing circuit, particularly a kind of time switch supply socket.
Background technology
Nowadays, many electric equipments also do not possess time opening and closing function.Much need to be at the device of set time section open and close, also need artificial on duty and operation, cause electric energy and waste of human resource, and easily occur human error.
In order to address this problem, can carry out with time switch power supply automatic switching electricity within the time period of setting of control apparatus equipment.
At present existing mechanical timing switch, for realizing timed switching function to electric equipment.
But, mechanical timing switch generally adopts clock and watch principle to carry out timing break-make, and complicated in mechanical structure, accuracy of timekeeping are not high, timing controlled scope is shorter, before each use, all must reset timing, once set short-term effective, and timing generally cannot one day in multistage setting.
Utility model content
A technical matters to be solved in the utility model is to provide a kind of time switch supply socket, and it uses electronic type time switch mode, makes user to carry out time switch operation to the electric equipment that there is no timed switching function easily.
According to an aspect of the present utility model, a kind of time switch supply socket is provided, comprising: clock circuit; Single-chip microcomputer, is connected to clock circuit; Photoelectrical coupler, has input end and output terminal, and its input end is connected to single-chip microcomputer; Bidirectional triode thyristor, has the first main terminal, the second main terminal and control end, and the first main terminal is set to first utmost point for being connected to power supply, and control end is connected to the output terminal of photoelectrical coupler; Socket, has the first terminal and the second terminal, and wherein the first terminal is connected to the second main terminal of bidirectional triode thyristor, and the second terminal is set to second utmost point for being connected to power supply.
Preferably, this time switch supply socket can also comprise buffer protection circuit, is connected in parallel between first main terminal and the second main terminal of bidirectional triode thyristor.
Preferably, buffer protection circuit can comprise the resistance and the electric capacity that are connected in series.
Preferably, this time switch supply socket can also comprise one or more buttons, is connected to single-chip microcomputer.
Preferably, button can adopt free-standing button.
Preferably, this time switch supply socket can also comprise reset circuit, is connected to the reset pin of single-chip microcomputer.
Preferably, this time switch supply socket can also comprise display, is connected to single-chip microcomputer.
Preferably, display can adopt YM1602C type industry Character Mode LCD.
Preferably, clock circuit can adopt DS1307 type clock chip, and single-chip microcomputer can adopt AVR single-chip microcomputer, and photoelectrical coupler can adopt MOC3041 type photoelectrical coupler, and bidirectional triode thyristor can adopt BAT12-600B type bidirectional triode thyristor.
Brief description of the drawings
Fig. 1 is according to the schematic block diagram of time switch supply socket of the present utility model.
Description of reference numerals
1 AVR single-chip microcomputer 7 bidirectional triode thyristors
2 button T1 the first main terminals
3 reset circuit T2 the second main terminals
4 clock circuit G control ends
5 display 8 sockets
6 optocouplers (photoelectrical coupler), 81 the first terminals
82 second terminals
Embodiment
Describe in detail according to time switch supply socket of the present utility model below with reference to accompanying drawing.
As shown in Figure 1, can comprise single-chip microcomputer 1, clock circuit 4, photoelectrical coupler (optocoupler) 6, bidirectional triode thyristor 7, socket 8 according to time switch supply socket of the present utility model.
Socket 8 has the first terminal 81 and the second terminal 82.The first terminal 81 is connected to the second main terminal T2 of bidirectional triode thyristor 7, and the second terminal 82 is set to second utmost point for being connected to power supply.
The attaching plug of electric equipment (not shown) inserts socket 8, and two terminals of plug are connected with the second terminal 82 with the first terminal 81 of socket 8 respectively.In the time that socket 8 is switched on, electric equipment receives electric energy from socket 8, thereby can open.In the time of socket 8 power-off, electric equipment can not receive electric energy from socket 8, thereby closes.
Clock circuit 4 can be DS1307 type clock chip.Time base adopt 32768 clock and watch crystal oscillators.
The timer that single-chip microcomputer 1 inside carries also can be realized timing function, but timing is not very accurate, and the time of operation has been grown and had error, and after power down, timing is just inaccurate.
In order to ensure timing accurately, even still accurate while walking after power down, can use special clock chip DS1307 to realize timing.DS1307 is a kind of real-time timepiece chip that adopts serial data transmission mode that DALLS company of the U.S. produces, have that volume is little, low-power consumption, interface easily, take the features such as single-chip processor i/o mouth line is few.Be full of electric 3V lithium battery for this chip is equipped with, like this, not only guaranteed the accurate of timing, error is very little, and also can maintain for a long time after power down, and program design is also relatively simple.
DS1307 is a low-power consumption, there is the full binary-coded decimal clock/calendar real-time timepiece chip of the non-mistake RAM of 56 byte, address and data are by the transmission of the two-way universal serial bus of two lines, and chip can provide the information such as second, point, hour, and the number of days of each month can be adjusted automatically.And there is leap year compensate function.AM (morning)/PM (afternoon) zone bit determines that clock work was in 24 hours or 12 hours patterns, and chip has a built-in power source sensing circuit, has detection of power loss and battery handoff functionality.Under battery backup mode, power consumption is less than 500nA.
Single-chip microcomputer 1 is connected to clock circuit 4, receives the clock signal from clock circuit 4.
Single-chip microcomputer 1 can be high speed Embedded A VR series monolithic.Can be connected to by its I/O terminals P C6 and PC7 the output terminal of clock of clock circuit 4.
AVR single-chip microcomputer has absorbed the feature of DSP dual bus, adopts Harvard (Harvard) bus structure, thereby can avoid the appearance in multiple instruction cycle in traditional MCS-51 series monolithic.AVR single-chip microcomputer adopts low-power, non-volatile CMOS technique to manufacture, and except having low-power consumption, highdensity feature, also supports online Flash, the EEPROM write-in functions of low-voltage.I/O interface has very strong driving force, fills with electric current and can directly drive the device such as relay, LED, thereby save driving circuit, saves system cost.
In response to the control signal of single-chip microcomputer 1, can be controlled by ON-OFF control circuit energising or the power-off of socket 8.
In order to meet the timing controlled requirement of power switch, after timing has arrived, by master controller---single-chip microcomputer 1 sends energising or the power-off of low-voltage control signal control socket 8, i.e. " strong with weak control ".
Generally under requiring, this control mainly realizes switching manipulation by relay, transistor or the controllable silicon way of output.
Below three kinds of modes are compared.
The relay way of output belongs to mechanical isolation, and withstand voltage height is not suitable for the load of high frequency action, and the increase of its life-span load current going along with and reducing easily produces immediate current, thereby can not well protect controlled electric equipment in the process of work
Transistor output circuit form is fast than relay output response, be applicable to require the occasion of response fast, because transistor is machinery-free contact, therefore longer than the life-span of outputting circuit for relay form, but the external power supply of transistor output type circuit can only be direct power supply, and output driving force is less than relay output.
Controllable silicon is that a kind of security performance is higher, can not produce the electronic devices and components of immediate current, in the process of work, realize contactless control, can not produce spark (being immediate current), not have the phenomenon that spark disturbs and contact is burnt, can bear powerful load.
Consider above-mentioned comparative result, in order to ensure the general applicability of self-timing power switch for electric equipment control, the final way of output of determining employing bidirectional triode thyristor.Meanwhile, in order to isolate the ac high-voltage on DC low-voltage control signal and the combined socket and switch 8 that single-chip microcomputer 1 provides, make system there is good electrical isolation capabilities and antijamming capability, adopt photoelectrical coupler 6 to drive bidirectional triode thyristor 7.
Photoelectrical coupler 6 has input end and output terminal, and its input end is connected to single-chip microcomputer 1.
The aspects such as comprehensive comparison techniques parameter, P/C ratio, volume size, photoelectrical coupler 6 can adopt MOC3041 type photoelectrical coupler, band zero-cross triggering circuit, and the control electric current of input end is 15mA, the rated voltage of output terminal is 400V, and input/output terminal isolation voltage is 7500V.
In the situation that adopting AVR single-chip microcomputer, the input end of photoelectrical coupler 6 can be connected to single-chip microcomputer 1 by the I/O terminals P D7 of AVR single-chip microcomputer.
Bidirectional triode thyristor 7 has the first main terminal T1, the second main terminal T2 and control end (gate pole) G, and the first main terminal T1 is set to first utmost point for being connected to power supply, and control end G is connected to the output terminal of photoelectrical coupler.
The aspects such as comprehensive comparison techniques parameter, P/C ratio, volume size, bidirectional triode thyristor 7 can adopt BAT12-600B type bidirectional triode thyristor, and it is 600V that this device can bear inverse peak voltage, and maximum circuit is 12A.
As shown in Figure 1, can also provide one or more buttons 2 according to time switch supply socket of the present utility model, be connected to single-chip microcomputer 1, for example, 6 buttons can be connected to the I/O terminals P B0 to PB5 of AVR single-chip microcomputer.
For good man-machine exchange is provided, save resource and the power consumption of single-chip microcomputer 1, reduce the volume of time switch supply socket, button 2 can adopt free-standing button.
By pressing successively or simultaneously one or more buttons, can arrange single-chip microcomputer 1 and clock circuit 4.For example, can carry out system time calibration, can select mode of operation, switch timing section can also be set.
As shown in Figure 1, can also provide display 5 according to time switch supply socket of the present utility model, be connected to single-chip microcomputer 1 and for example can be connected to the I/O terminals P A0 to PA7 of AVR single-chip microcomputer.Display 5 can adopt YM1602C type industry Character Mode LCD, can show i.e. 32 characters of 16*2 simultaneously.Select to carry out system time calibration, mode of operation when pressing button 2, or when switch timing section is set, display 5 shows corresponding information so that adjust accordingly.
Mode of operation for example can comprise " self-timing ", " manually connecting ", " manually disconnecting ", " clock adjustment " four kinds of mode of operations.
When pressing specific button 2 and select " clock adjustment " mode of operation, single-chip microcomputer 1, in response to the operation to button 2, is calibrated the clock of clock circuit 4.
When select " manually connecting " mode of operation by pressing specific button 2, single-chip microcomputer 1 produces high-level control signal, exports to the input end of photoelectrical coupler 6, and photoelectrical coupler 6 is triggered, and makes bidirectional triode thyristor 7 conductings, thereby allows socket 8 switch on.
When select " manually disconnecting " mode of operation by pressing specific button 2, single-chip microcomputer 1 produces low level control signal, exports to the input end of photoelectrical coupler 6, and photoelectrical coupler 6 is not triggered, and makes bidirectional triode thyristor 7 conductings, thereby allows socket 8 switch on.
When pressing specific button 2 and select " self-timing " mode of operation, single-chip microcomputer 1 enters self-timing mode of operation.
In single-chip microcomputer 1, there is storer, can store the timing section arranging by button 2.The in the situation that of conditions permit, can store many group timing sections, for example can store at most five groups of timing sections.Can switch at any time and check set timing section by display 5.
Under self-timing mode of operation, single-chip microcomputer 1 constantly reads the current time that clock circuit 4 provides, and compares with the timing section setting by built-in comparer.
If current time is coincide with the timing section setting, produce high-level control signal, export to the input end of photoelectrical coupler 6, photoelectrical coupler 6 is triggered, and makes bidirectional triode thyristor 7 conductings, thereby allows socket 8 switch on.
If current time is not within the time period of setting, single-chip microcomputer 1 produces low level control signal, exports to the input end of photoelectrical coupler 6, and photoelectrical coupler 6 is not triggered, and bidirectional triode thyristor 7 is in off state, thereby allows socket 8 power-off.
Socket 8 is switched on or the state of power-off can show in real time on display 5.
Adopt photoelectrical coupler 6 and bidirectional triode thyristor 7 to form power switch circuit according to time switch supply socket of the present utility model.With the conducting of bidirectional triode thyristor 7 or turn-off control socket 8 connect electricity or power-off, thereby control the opening and closing that obtain the electric equipment (not shown) of power supply input via socket 8.
By realizing automatic energising and the power-off control of power switch with photoelectrical coupler 6 and bidirectional triode thyristor 7, isolate DC low-voltage control signal that single-chip microcomputer provides and external ac high-voltage, can protect the safety of the person and equipment, reduce interference.
In order to protect bidirectional triode thyristor 7, also can add on its side buffer protection circuit, be connected in parallel between first main terminal and the second main terminal of bidirectional triode thyristor.Buffer protection circuit can comprise the resistor R and the capacitor C that are connected in series.As an example, the resistance of resistor R can be for example 39 Ω, and the capacitance of capacitor C can be 0.01 μ F.
Because bidirectional triode thyristor 7 is larger at the rate of change of the moment du/dt turning on and off, switching loss is very large, therefore adds resistance-capacitance circuit, utilizes energy-storage travelling wave tube C to cushion energy, can reach the object of further protection bidirectional triode thyristor 7.
In addition, as shown in Figure 1, can also comprise reset circuit 3 according to time switch supply socket of the present utility model, be connected to the reset pin of single-chip microcomputer 1, for carrying out electrification reset operation.
Can directly access high-voltage ac power according to time switch supply socket of the present utility model.In addition, also may further include attaching plug (not shown), its two ends are connected respectively to the second terminal 82 of socket 8 and the first main terminal T1 of bidirectional triode thyristor 7.Attaching plug for example can insert in 220V mains power socket, thus access 220V AC power.
The timing controlled effect of the utility model based on AVR single-chip microcomputer, can be in automatic energising and the power-off of the control apparatus equipment of multiple time period Long time scales, and the while has also saved the energy, extended the serviceable life of electrical equipment.
So far, described in detail according to the specific embodiment of time switch supply socket of the present utility model.But it will be understood by those skilled in the art that the utility model is not limited to various details described herein, but can make suitable amendment.Protection domain of the present utility model is limited by appended claims.
Claims (9)
1. a time switch supply socket, is characterized in that, comprising:
Clock circuit;
Single-chip microcomputer, is connected to described clock circuit;
Photoelectrical coupler, has input end and output terminal, and its input end is connected to described single-chip microcomputer;
Bidirectional triode thyristor, has the first main terminal, the second main terminal and control end, and the first main terminal is set to first utmost point for being connected to power supply, and control end is connected to the output terminal of described photoelectrical coupler;
Socket, has the first terminal and the second terminal, and wherein the first terminal is connected to the second main terminal of described bidirectional triode thyristor, and the second terminal is set to second utmost point for being connected to power supply.
2. according to the time switch supply socket of claim 1, it is characterized in that, also comprise:
Buffer protection circuit, is connected in parallel between first main terminal and the second main terminal of described bidirectional triode thyristor.
3. according to the time switch supply socket of claim 2, it is characterized in that,
Described buffer protection circuit comprises the resistance and the electric capacity that are connected in series.
4. according to the time switch supply socket of claim 1, it is characterized in that, also comprise:
One or more buttons, are connected to described single-chip microcomputer.
5. according to the time switch supply socket of claim 4, it is characterized in that,
Described button is free-standing button.
6. according to the time switch supply socket of claim 1, it is characterized in that, also comprise:
Reset circuit, is connected to the reset pin of described single-chip microcomputer.
7. according to the time switch supply socket of claim 1, it is characterized in that, also comprise: display, is connected to described single-chip microcomputer.
8. according to the time switch supply socket of claim 7, it is characterized in that, described display is YM1602C type industry Character Mode LCD.
9. according to the time switch supply socket of claim 1, it is characterized in that, described clock circuit is DS1307 type clock chip,
Described single-chip microcomputer is AVR single-chip microcomputer,
Described photoelectrical coupler is MOC3041 type photoelectrical coupler,
Described bidirectional triode thyristor is BAT12-600B type bidirectional triode thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348497.1U CN203909541U (en) | 2013-08-29 | 2014-06-26 | Time switch supply socket |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538148 | 2013-08-29 | ||
| CN201320538148.1 | 2013-08-29 | ||
| CN201420348497.1U CN203909541U (en) | 2013-08-29 | 2014-06-26 | Time switch supply socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909541U true CN203909541U (en) | 2014-10-29 |
Family
ID=51783794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348497.1U Expired - Fee Related CN203909541U (en) | 2013-08-29 | 2014-06-26 | Time switch supply socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909541U (en) |
-
2014
- 2014-06-26 CN CN201420348497.1U patent/CN203909541U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |