CN102761324B - Electric delay switch - Google Patents
Electric delay switch Download PDFInfo
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- CN102761324B CN102761324B CN201210257321.0A CN201210257321A CN102761324B CN 102761324 B CN102761324 B CN 102761324B CN 201210257321 A CN201210257321 A CN 201210257321A CN 102761324 B CN102761324 B CN 102761324B
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- delay control
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Abstract
The invention relates to an electric delay switch which comprises a switch circuit, a drive circuit, a delay control circuit and the like, wherein the signal triggering input end of the delay control circuit is connected with a signal detection circuit and an induction circuit, and the output end of the delay control circuit is sequentially connected with a switch drive circuit and the switch circuit so as to send the overall control signals form the start to the close to the switch drive circuit and the switch circuit; when the delay control circuit controls the switch switch to turn on, the output signals of a fire fighting signal detection circuit are not processed; when the delay control circuit controls the switch switch to turn off, the output signals of the fire fighting signal detection circuit are subjected to real time detection; and when a delay switch is in normally turned on, turned off and in a normal standby state, the signal detection circuit between an A end and a C end can detect the access of fire fighting power, so as to achieve the effect of repeatedly triggering the delay circuit to start the fire fighting emergency. According to the invention, any other load can be connected in parallel between the zero line and the fire fighting end of the electric delay switch, controllable silicon is not limited to serve as the switch element of the switch circuit, and the application is convenient and flexible.
Description
Technical field
The present invention relates to a kind of electronic time-delay switch, specifically refer to a kind of electronic time-delay switch opened by force of meeting an urgent need.
Background technology
In order to take into account hommization and energy-conservation, between building ladder or the illumination of passage extensively adopt: the electronic time-delay switchs such as infrared induction, controlled by sound and light, touch time delay.The common feature of this kind of switch is: open when meeting trigger condition, automatically closes after continuity a period of time.In order to security against fire, this kind of electronic time-delay switch is required to be designed to: except fire line terminal (L end) and face terminals (A end), must with enforced opening control terminal (C end).During installation, the enforced opening control terminal (C end) of all switches is connected in parallel on emergency power supply line, and emergency power supply line does not connect power supply at ordinary times, and electronic time-delay switch can normal switch.When running into fire-fighting or other accidents need illumination to ensure, enforced opening control terminal (C end) and fire line terminal (L end) access same emergency power supply, and all lighting loads being in closed condition will be forced to open, to ensure illumination.Controllable silicon commonly used by the switching circuit of current electronic time-delay switch is switch element.The electronic time-delay switch of old scheme comprises: switching circuit, switch driving circuit, power supply circuits, delay control circuit, sensing circuit, (C end) signal deteching circuit, switching circuit in series is connected with drive circuit and delay control circuit output successively and controls by it in electricity consumption loop, sensing circuit (can be infrared induction, acoustic control, light-operated, remote control, various kinds of sensors or the sensor combinations such as touch) be connected for Time delay switch with the triggering signal input of delay control circuit; (C end) signal deteching circuit is connected between face terminals (A end) and enforced opening control terminal (C holds), its output is connected with switch driving circuit, electric current whether is had to flow through for detecting (C end), if electric current do not detected, delay switch normally uses, once detect that electric current is with regard to enforced opening switching circuit.
Result of use is: the enforced opening control terminal (C end) of all switches all links together when mounted, and (C end) is in vacant state at ordinary times, and electronic time-delay switch can normally work.When running into fire-fighting or other accidents need illumination to ensure, enforced opening control terminal (C end) access emergency power supply, the signal deteching circuit of now all electronic time-delay switchs has all detected that electric current flows through (C end) so directly by switch driving circuit opening switch circuit.Because controllable silicon is designed to " non-full-shape conducting ", after electronic time-delay switch is opened, controllable silicon two ends still have electrical potential difference, and this electrical potential difference is used to provide ON state to power at ordinary times, now then take into account to maintain to continue normal on-mode.
This just determines existing scheme and has inevitable shortcoming: do not allow the fire-fighting equipments such as (C end) fire-fighting instruction in parallel with between zero line, fire alarm bell, because in the above-described state, even if when enforced opening control terminal (C end) does not access power supply, electronic time-delay switch is once open, voltage between load end (A end) and zero line will make electric current flow through (C holds) via above-mentioned fire-fighting equipment, cause (C end) testing circuit to report by mistake, making switch be in the normal on-mode of fire-fighting all the time cannot close.And the trend of (C end) fire-fighting equipment in parallel with between zero line design for fire protection exactly.
Summary of the invention
The present invention need solve problem be: a kind of novel electron delay switch started by force of meeting an urgent need allowing other loads in parallel with between zero line of emergency power supply line is provided.
The technical scheme that the present invention takes is as follows: a kind of electronic time-delay switch, comprise switching circuit, drive circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, and output and switch driving circuit and switching circuit are connected with the whole group of control signal sent to it from being opened to time-delay closing successively; Power supply circuits provide power supply for other functional circuit; Described signal deteching circuit is connected between enforced opening control end C and load end A, it is characterized in that: described signal deteching circuit output is connected with the triggering signal input of delay control circuit.Delay control circuit gathers the output signal of fire-fighting signal deteching circuit and sensing circuit, and the situation according to two signals carries out break-make control to the main switch of switching circuit.Concrete control mode is as follows: automatically will disconnect after time delay by the mode control switch closing of circuit preset when the signal of delay control circuit triggering signal input collection reaches " activation threshold value ", the triggering signal from signal deteching circuit is blocked during described delay control circuit control switch closing of circuit, when its control switch circuit disconnects, detect the output signal of fire-fighting signal deteching circuit in real time.Described " signal blocker " can realize with following methods: breaking signal testing circuit; Or the output of breaking signal testing circuit; Do not process again or to the output signal of signal deteching circuit.
A preferred embodiment of the present invention is: a kind of electronic time-delay switch, comprise the first switching circuit, switch driving circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, output is connected successively with switch driving circuit and the first switching circuit; Described first switching circuit is connected to load end A and exchanges between live wire L; Described signal deteching circuit is connected between enforced opening control end C and load end A, and described signal deteching circuit output is connected with the triggering signal input of delay control circuit; Also comprise second switch circuit, described second switch circuit connected in series is between enforced opening control end C and load end A, second switch circuit directly or indirectly controls oppositely to link with switching circuit by delay control circuit, and when the first switching circuit is opened, second switch circuit is closed; When the first switching circuit cuts out, second switch circuit is opened.
Another kind of preferred version of the present invention is: a kind of electronic time-delay switch, comprise the first switching circuit, drive circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, output is connected successively with switch driving circuit and the first switching circuit; Described first switching circuit is connected to load end A and exchanges between live wire L; Described signal deteching circuit is connected between enforced opening control end C and load end A, and described signal deteching circuit output is connected with the triggering signal input of delay control circuit; Also comprise second switch circuit, described second switch circuit connected in series is between signal deteching circuit output and the triggering signal input of delay control circuit, and second switch control circui end connects delay control circuit and controls work by it; Second switch circuit controls oppositely to link with switching circuit by delay control circuit, and when the first switching circuit is opened, second switch circuit is closed; When the first switching circuit cuts out, second switch circuit is opened.
Compared with prior art, beneficial effect of the present invention is: the fire-fighting emergent end of described electronic time-delay switch with can other load in parallel arbitrarily between zero line, and be not limited to use controllable silicon as the switch element of switching circuit, apply convenient, flexible.
Accompanying drawing explanation
Fig. 1 is the theory of constitution block diagram of existing electronic time-delay switch;
Fig. 2 is the first embodiment schematic diagram of electronic time-delay switch described in the utility model;
Fig. 3 is the first embodiment circuit theory diagrams of electronic time-delay switch described in the utility model;
Fig. 4 is the second embodiment block diagram of electronic time-delay switch described in the utility model;
Fig. 5 is the second embodiment circuit theory diagrams of electronic time-delay switch described in the utility model;
Fig. 6 is another circuit theory diagrams of the second embodiment of electronic time-delay switch described in the utility model;
Fig. 7 is the 3rd embodiment block diagram of electronic time-delay switch described in the utility model;
Fig. 8 is the 3rd embodiment circuit theory diagrams of electronic time-delay switch described in the utility model.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Mentality of designing of the present invention is: abandon the electric current that full-time detection flows through enforced opening control terminal C end, then only enable C end signal testing circuit when switch is in closed condition, and C end signal testing circuit is connected with delay control circuit triggering signal input, make this switch under the state that normal turn-off is standby, Time delay switch is repeatedly held to reach the effect of opening continuously by C, and non-immediate enforced opening load supplying switch.
As shown in Figure 2 and Figure 3, in this embodiment, delay switch comprises switching circuit 1.1, power supply circuits 1.2, delay control circuit 1.3, fire-fighting signal deteching circuit 1.4 and switch driving circuit 1.5, sensing circuit 2.0 to the simplest embodiment of the present invention.Described switching circuit 1.1 is connected to load end A and exchanges between live wire L; The triggering signal input of delay control circuit is connected with signal deteching circuit and sensing circuit, and output is connected successively with switch driving circuit and switching circuit; Described fire-fighting signal deteching circuit is connected between enforced opening control end C and load end A, and its output is connected with the triggering signal input of delay control circuit; Delay control circuit 1.3 adopts single-chip microcomputer or similar delay switch control integrated circuit, and described delay control circuit does not process the output signal of fire-fighting signal deteching circuit when switching circuit closes; The triggering signal of fire-fighting signal deteching circuit is detected in real time when switching circuit disconnects.
During concrete enforcement, fire-fighting signal deteching circuit 1.4 can be composed in series by voltage stabilizing element Z1, resistance R1, R2 and diode D1, these elements are connected between enforced opening control terminal (C end) and face terminals (A holds) successively, and the tie point of resistance R1, R2 is connected with delay control circuit 1.3.When the enforced opening signal input of (C end), resistance R1, R2 tie point has signal and exports to delay control circuit, switching circuit is opened by its Time delay control circuit, then (L end) and (A holds) are connected, loaded work piece, delay control circuit, at switching circuit duration of work, does not process the signal from (C end), when switching circuit 1.1 cuts out, again receive and process the signal of (C end).
Embodiment as shown in Figure 4, electronic time-delay switch described in the present embodiment, comprises switching circuit 1.1, power supply circuits 1.2, delay control circuit 1.3, fire-fighting signal deteching circuit 1.4, switch driving circuit 1.5, second switch circuit 1.6, sensing circuit 2.0.Wherein, switching circuit 1.1 is connected to load end A and exchanges between live wire L, delay control circuit 1.3 is connected successively with switch driving circuit 1.5, switching circuit 1.1, fire-fighting signal deteching circuit 1.4 and second switch circuit 1.6 are series between enforced opening control end C and load end A successively, and fire-fighting signal deteching circuit 1.4 and sensor circuit 2.0 output connect the triggering signal input of delay control circuit 1.3; Second switch circuit 1.6 control end connects delay control circuit 1.3 and controls work by it.
As Fig. 5, fire-fighting signal deteching circuit 1.4 can be composed in series by voltage stabilizing element Z1, resistance R1, R2 and diode D1.Second switch circuit 1.6 adopts a triode, and this transistor base connects delay control circuit 1.3, and collector electrode connects fire-fighting signal deteching circuit 1.4, and emitter connects load end A.
As Fig. 6, it is the another kind of preferred embodiment of the utility model the second embodiment.Switching circuit and second switch circuit share a single-pole double-throw relay in this embodiment, this relay common connects load end A, one of fixed contact connects signal deteching circuit between enforced opening control end C and load end A, another fixed contact is connected with interchange live wire L, single-pole double-throw relay control end connecting valve drive circuit, delay control circuit makes load end A be switched between live wire L and signal deteching circuit by relay common port contact by switch driving circuit, be equivalent to the reverse interlock of switching circuit described in the second embodiment and second switch circuit.
As Fig. 7,8, in this embodiment, be that the connected mode of triode in second switch circuit is different from the difference of Fig. 4,5 illustrated embodiments.In this embodiment, triode Q1 in second switch circuit is connected between delay control circuit 1.3 and fire-fighting signal deteching circuit 1.4, triode Q1 base stage is controlled by delay control circuit, and collector and emitter connects delay control circuit 1.3 and fire-fighting signal deteching circuit 1.4 respectively.Its operation principle and process and Fig. 4,6 embodiments are identical.
In above-described embodiment:
Described switching circuit 1.1 can be relay also can be controllable silicon class switch element.Describedly to drive
Dynamic circuit 1.5 is matched according to the actual conditions of switching circuit 1.1.Described power supply circuits 1.2 can be connected between power supply phase line L and load A according to different supply power modes (as resistance-capacitance depressurization, Switching Power Supply etc.) or are connected between power supply phase line L and zero line N.For other functional circuit provides power supply.Described sensing circuit 2.0 can according to different use (such as: sound, photocontrol, infrared induction, remote control, program control, by key control etc.) adopt the combination of different transducers or communication element or this class component.Described delay control circuit 1.3 can adopt single-chip microcomputer or be similar to the intelligent control chip of single-chip microcomputer, or is combined by delay circuit and logical circuit.
For electronic time-delay switch of the present invention: when after enforced opening control terminal (C end) access power supply, if delay switch is in turning off standby state, signal deteching circuit detects the electrical potential difference between face terminals (A end) and (C holds), Time delay control circuit opening switch circuit, period, the opening of switching circuit maintained by delay control circuit, signal deteching circuit is cut-off or ignore, initial condition is got back to after the time delayed turn-off of scheduled duration, start new circulation, until cut off enforced opening control terminal (C end) connect power supply, normal Standby state is entered after switch time delayed turn-off.In holding state, if any the triggering signal from sensing circuit, then delay control circuit opening switch circuit enter time delayed turn-off pattern, switching circuit open period signal deteching circuit is cut-off or ignore, thus avoids (C end) fire-fighting equipment in parallel with between zero line to cause switch to be in normal on-mode all the time cannot closing.
Above-described embodiment is preferrred embodiment of the present invention; it should be noted that; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (10)
1. an electronic time-delay switch, comprise switching circuit, switch driving circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, output is connected successively with switch driving circuit and switching circuit; Described switching circuit is connected to load end A and exchanges between live wire L; Described signal deteching circuit is connected between enforced opening control end C and load end A, it is characterized in that: described signal deteching circuit output is connected with the triggering signal input of delay control circuit, described delay control circuit adopts integrated circuit as control element, does not then process the output signal of signal deteching circuit when its control switch closing of circuit; When described delay control circuit control switch circuit disconnects, the output signal of real time detection signal testing circuit, receives and outputs signal then Time delay control circuit, by switch driving circuit opening switch circuit.
2. electronic time-delay switch according to claim 1, is characterized in that: described switching circuit adopts relay or controllable silicon to be switch element.
3. an electronic time-delay switch, comprise the first switching circuit, switch driving circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, output is connected successively with switch driving circuit and the first switching circuit; Described first switching circuit is connected to load end A and exchanges between live wire L; Described signal deteching circuit is connected between enforced opening control end C and load end A, it is characterized in that: described signal deteching circuit output is connected with the triggering signal input of delay control circuit; Also comprise second switch circuit, described second switch circuit connected in series is between enforced opening control end C and load end A, second switch circuit directly or indirectly controls oppositely to link with the first switching circuit by delay control circuit, and when the first switching circuit is opened, second switch circuit is closed; When the first switching circuit cuts out, second switch circuit is opened.
4. electronic time-delay switch according to claim 3, is characterized in that: described first switching circuit adopts controllable silicon or relay to be switch element.
5. electronic time-delay switch according to claim 3, it is characterized in that: it is a single-pole double-throw relay that described first switching circuit and second switch circuit share, described single-pole double-throw relay common connects load end A, one of fixed contact connects live wire L, this contact and common together form the first switching circuit, another fixed contact is connected with signal deteching circuit, and this contact and common together form second switch circuit, single-pole double-throw relay control end connecting valve drive circuit.
6. electronic time-delay switch according to claim 3, is characterized in that: described second switch control circui end connects delay control circuit and controls work by it.
7. an electronic time-delay switch, comprise the first switching circuit, drive circuit, delay control circuit, sensing circuit, signal deteching circuit, power supply circuits, the triggering signal input of delay control circuit is connected with sensing circuit, output is connected successively with drive circuit and the first switching circuit; Described first switching circuit is connected to load end A and exchanges between live wire L; Described signal deteching circuit is connected between enforced opening control end C and load end A, it is characterized in that: described signal deteching circuit output is connected with the triggering signal input of delay control circuit; Also comprise second switch circuit, described second switch circuit connected in series is between signal deteching circuit output and the triggering signal input of delay control circuit, and second switch control circui end connects delay control circuit and controls work by it; Second switch circuit controls oppositely to link with the first switching circuit by delay control circuit, and when the first switching circuit is opened, second switch circuit is closed; When the first switching circuit cuts out, second switch circuit is opened.
8. electronic time-delay switch according to claim 7, is characterized in that: described first switching circuit adopts controllable silicon or relay to be switch element.
9. the electronic time-delay switch according to claim 6 or 7, is characterized in that: described second switch circuit adopts a triode.
10. electronic time-delay switch according to claim 9, is characterized in that: the base stage of described triode connects delay control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257321.0A CN102761324B (en) | 2012-07-24 | 2012-07-24 | Electric delay switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257321.0A CN102761324B (en) | 2012-07-24 | 2012-07-24 | Electric delay switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102761324A CN102761324A (en) | 2012-10-31 |
| CN102761324B true CN102761324B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210257321.0A Expired - Fee Related CN102761324B (en) | 2012-07-24 | 2012-07-24 | Electric delay switch |
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| CN (1) | CN102761324B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796121A (en) * | 2015-04-20 | 2015-07-22 | 陈涛 | Electronic switch |
| CN109188971B (en) * | 2018-09-07 | 2024-06-25 | 深圳市亚晔实业有限公司 | Novel embedded switch conversion device |
| GB2579637A (en) * | 2018-12-07 | 2020-07-01 | Eaton Intelligent Power Ltd | Circuit breaker |
| CN111464170A (en) * | 2020-06-01 | 2020-07-28 | 惠州祺瑞电工有限公司 | Electronic double-circuit switch and system thereof |
| CN114423131B (en) * | 2022-01-28 | 2023-03-24 | 广东浩博特科技有限公司 | Electronic switch without fire-fighting live wire and with fire-fighting centralized control function and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181934Y (en) * | 2008-03-31 | 2009-01-14 | 中冶东方工程技术有限公司上海分公司 | Energy-saving emergency two-purpose switch circuit and circuit group |
| US7482940B2 (en) * | 2002-06-24 | 2009-01-27 | Angeleye Inc. | Alarm for detecting radiation and pollutants |
| CN201298837Y (en) * | 2008-11-21 | 2009-08-26 | 傅景灿 | Acousto-optic controlled self-extinguishing switch |
| CN201813358U (en) * | 2010-10-22 | 2011-04-27 | 重庆恩林电器有限公司 | Electronic switch with fire protection urgent control function |
| CN202663373U (en) * | 2012-07-24 | 2013-01-09 | 惠州祺瑞电工有限公司 | Electronic time-delay switch |
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2012
- 2012-07-24 CN CN201210257321.0A patent/CN102761324B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7482940B2 (en) * | 2002-06-24 | 2009-01-27 | Angeleye Inc. | Alarm for detecting radiation and pollutants |
| CN201181934Y (en) * | 2008-03-31 | 2009-01-14 | 中冶东方工程技术有限公司上海分公司 | Energy-saving emergency two-purpose switch circuit and circuit group |
| CN201298837Y (en) * | 2008-11-21 | 2009-08-26 | 傅景灿 | Acousto-optic controlled self-extinguishing switch |
| CN201813358U (en) * | 2010-10-22 | 2011-04-27 | 重庆恩林电器有限公司 | Electronic switch with fire protection urgent control function |
| CN202663373U (en) * | 2012-07-24 | 2013-01-09 | 惠州祺瑞电工有限公司 | Electronic time-delay switch |
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| CN102761324A (en) | 2012-10-31 |
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