CN2537116Y - Digital timing relay - Google Patents
Digital timing relay Download PDFInfo
- Publication number
- CN2537116Y CN2537116Y CN 02215338 CN02215338U CN2537116Y CN 2537116 Y CN2537116 Y CN 2537116Y CN 02215338 CN02215338 CN 02215338 CN 02215338 U CN02215338 U CN 02215338U CN 2537116 Y CN2537116 Y CN 2537116Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- relay
- connects
- rectification
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a digital time relay, comprising a rectifier circuit 5, a shaping circuit 6, a counting circuit 2, a comparator circuit 3, a clearing circuit 7, a control power supply input circuit 1 and a time delay executive circuit 4, which is characterized in that: the rectifier circuit 5 and the time delay executive circuit 4 are controlled by the control power supply input circuit 1 through the relay J2; the rectifier circuit 5 is connected with the shaping circuit 6; the shaping circuit 6 is connected with the comparator circuit 3, the clearing circuit 7 and the counting circuit 2; the counting circuit 2 is connected with the clearing circuit 7 and the comparator circuit 3; the comparator circuit 3 is connected with the time delay executive circuit 4; the control rectifier circuit 5 is controlled by the time delay executive circuit 4 through the relay J4. The utility model has the advantages that: after the power supply is cut off, digital time delay is realized; the delay time is convenient to adjust and high precision.
Description
Affiliated field:
The utility model relates to the time relay, relates in particular to digital time relay, is used for time being moved of setting by control elements of chien shih automatic control system.
Technical background:
Existing digital time relay is made up of rectification circuit, shaping circuit, comparison circuit, counting circuit, clear circuit, relay, and its function is an on-delay, the needs of incompatible outage time-delay control.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned weak point and the digital time relay of outage time-delay is provided.
The purpose of this utility model can reach by following technical solution: the utility model digital time relay, comprise rectification circuit, shaping circuit, counting circuit, comparison circuit, clear circuit, and set up control power supply input circuit, delay executing circuit, the control power supply input circuit passes through relay J
2Control rectification circuit, delay executing circuit, rectification circuit connects shaping circuit, and shaping circuit connects comparison circuit, clear circuit, counting circuit, and counting circuit connects clear circuit, comparison circuit, comparison circuit connects delay executing circuit, and delay executing circuit passes through relay J
4The control rectification circuit.
Advantage of the present utility model: realize the digital time time-delay of outage back, it is easy to adjust to delay time, the precision height.
Description of drawings:
Accompanying drawing 1 is the utility model digital time relay circuit block diagram.
Accompanying drawing 2 is the utility model digital time relay electrical schematic diagrams.
Embodiment:
As shown in Figure 1, the utility model is by rectification circuit 5, shaping circuit 6, counting circuit 2, comparison circuit 3, clear circuit 7, control power supply input circuit 1, and delay executing circuit 4 is formed, and set up control power supply input circuit 1, circuit 4 is held in time-delay, control power supply input circuit 1 passes through relay J
2Control rectification circuit 5, delay executing circuit 4, rectification circuit 5 connects shaping circuit 6, shaping circuit 6 connects comparison circuit 3, clear circuit 7, counting circuit 2, counting circuit 2 connects clear circuit 7, comparison circuit 3, comparison circuit 3 connects delay executing circuit 4, and delay executing circuit 4 passes through relay J
4Control rectification circuit 5.
As shown in Figure 2, control power supply input circuit 1 is by the whole device ZL of all-wave
3, relay J
1, J
2Form the J that is in series
1, J
2Be connected in parallel on full-wave rectifier ZL
3Output, ZL
3Output also can filter capacitor C in parallel
10, sustained diode
13, R
10Be discharge resistance C
9Be decompression capacitor, J
1Has external snap action contact, the secondary coil serial connection relay J of rectification circuit 5 its auxiliary supply transformer B
2Normally-closed contact J
2-2, relay J
4Normally opened contact J
4-1, in addition for prior art be, by D
1, D
2, D
3, D
4The full-wave rectifying circuit of forming, its out-put supply have+12 ,+9V, C
1Be filter capacitor, R
2Be current-limiting resistance, D
7Be voltage-stabiliser tube, by D
1, D
2The halfwave rectifier of the 10MS that forms, the output of 10MS half-wave pulse connects the input of shaping circuit 6, through being shaped as the 100MS pulse square wave; Delay executing circuit 4 is by full-wave rectification ZL
2, relay J
3, J
4, controllable silicon BT169, triode BG, relay J
2Normally opened contact J
2-1Form J
3, J
4Be in parallel one termination ZL
2Output, the other end connects the negative electrode of controllable silicon BT169, J
2-1Serial connection ZL
2The control utmost point of positive output end and controllable silicon BT169, the collector electrode of triode BG connect by the control utmost point of voltage-stabiliser tube with controllable silicon BT169.Comparison circuit 3 is a prior art, and by toggle switch and U1A, U1F forms AND circuit, connects with triode BG base stage.
Clear circuit 7 is a prior art, form by U1C, U1D etc., connect with counter 2 clear terminal C, clear terminal moment of the individual count device of U2A, U2B, U3A, U3B is that high level " 1 " is finished zero clearing work during start, become low level again, U2A, U2B, U3A, U3B preparation are accepted pulse at once.
Counting circuit 2 is a prior art, is made up of three digit counters (2)-1, (2)-2, (2)-3.
After the start, accessory power supply is switched on all the time, and when connecting the control power supply, the control power supply is through ZL
3Rectification makes J
1, J
2Must be electric, J
1The outer snap action contact upset that connects that is had, J
2Normally opened contact J
2-1Closure, normally-closed contact J
2-2Disconnect controllable silicon BT169 energising, J
3, J
4Must be electric, J
3Overturn in the outer contact that connects that is had, when turn-offing control power supply, J
1, J
2Dead electricity, J
1Snap action contact restore J
2J
2-2Closure, J
2-1Disconnect but controllable silicon BT169 continuation energising, so rectification circuit 5 is by D
1, D
2The half-wave of output 10MS is by U
1B, U
1The shaping circuit 6 that E forms becomes the square wave of 10MS, sends into U2A counting 10 times then, Q
3Output 100MS square wave, three digit counters of being made up of U3A, U3B, U2B are counted the 100MS square wave then, form AND circuit comparator 3 by toggle switch and U1A, U1F, when counting reaches set point, 1 pin of U1A is " 1 ", and through U1A, U1F drive controlling triode BG conducting, negative voltage is to the control utmost point of controllable silicon BT169, the instruction controllable silicon ends J
3, J
4Dead electricity, contact J
4-1Disconnect, rectification circuit quits work, relay J
3The upset of external contact has realized the delay cut-off function.
Claims (2)
1, a kind of digital time relay, comprise rectification circuit (5), shaping circuit (6), counting circuit (2), comparison circuit (3), clear circuit (7), it is characterized in that: set up control power supply input circuit (1), delay executing circuit (4), control power supply input circuit (1) passes through relay J
2Control rectification circuit (5), delay executing circuit (4), rectification circuit (5) connects shaping circuit (6), shaping circuit (6) connects comparison circuit (3), clear circuit (7) counting circuit (2), counting circuit (2) connects clear circuit (7), comparison circuit (3), comparison circuit (3) connects delay executing circuit (4), and delay executing circuit (4) passes through relay J
4Control rectification circuit (5).
2, by the described digital time relay of claim 1 road, it is characterized in that: said control power supply input circuit (1) is by full-wave rectifier ZL
3, relay J
1, J
2Form the J that is in series
1, J
2Be connected in parallel on full-wave rectifier ZL
3Output; The secondary coil serial connection relay J of its auxiliary supply transformer of said rectification circuit (5) B
2Normally-closed contact J
2-2, relay J
4Normally opened contact J
4-1Said delay executing circuit is by full-wave rectification ZL
2, relay J
3, J
4, controllable silicon BT169, triode BG, relay J
2Normally opened contact J
2-1Form J
3, J
4Be in parallel one termination ZL
2Output, another termination controllable silicon negative electrode, J
2-1Serial connection ZL
2The control utmost point of positive output end and controllable silicon BT169, the collector electrode of triode BG connects with the SCR control utmost point by voltage-stabiliser tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215338 CN2537116Y (en) | 2002-01-22 | 2002-01-22 | Digital timing relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215338 CN2537116Y (en) | 2002-01-22 | 2002-01-22 | Digital timing relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537116Y true CN2537116Y (en) | 2003-02-19 |
Family
ID=33694496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02215338 Expired - Fee Related CN2537116Y (en) | 2002-01-22 | 2002-01-22 | Digital timing relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537116Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465222A (en) * | 2014-12-31 | 2015-03-25 | 常熟市九洲电器设备有限公司 | High-precision time relay |
| CN103873038B (en) * | 2012-12-17 | 2017-02-08 | 快捷半导体(苏州)有限公司 | Delay time adjusting circuit, delay time adjusting method and integrated circuit |
-
2002
- 2002-01-22 CN CN 02215338 patent/CN2537116Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103873038B (en) * | 2012-12-17 | 2017-02-08 | 快捷半导体(苏州)有限公司 | Delay time adjusting circuit, delay time adjusting method and integrated circuit |
| CN104465222A (en) * | 2014-12-31 | 2015-03-25 | 常熟市九洲电器设备有限公司 | High-precision time relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |