CN2657261Y - Re-improved special time-delay control switch - Google Patents
Re-improved special time-delay control switch Download PDFInfo
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- CN2657261Y CN2657261Y CN 02240489 CN02240489U CN2657261Y CN 2657261 Y CN2657261 Y CN 2657261Y CN 02240489 CN02240489 CN 02240489 CN 02240489 U CN02240489 U CN 02240489U CN 2657261 Y CN2657261 Y CN 2657261Y
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Abstract
The utility model relates to a time-delay control switch used for controlling the mains lighting supply of fire paths in high-rise buildings, which is composed of a general time-delay switch circuit and a skip circuit switching between two fire wires. The utility model avoids the imperfect isolation of the two fire wires of the products, and the damage of the switch caused by the methods that power supply is simultaneously added to the two fire wires and a big phase difference exists between two fire wires can be avoided. The utility model is a wall embedding type switch, and a zero line needs not to be connected. The technical proposal of the utility model solves a great designing problem of the products; in general, the products have two functions, one is the function of a power-saving switch in daily use and the other is the function of satisfying the requirement of the emergency lighting when an accident, such as a fire, occurs. The utility model is the improvement and supplementary to the utility model 02237553.8. of the China patent. The new design reduces the number of the contacts of a relay, makes a circuit compact and the functional reliability enhanced, and the products are easy to manufacture.
Description
Technical field:
The utility model relates to electricity field, is a kind of extraordinary emergency lighting delay control switch that fire prevention to high buildings passage control mains lighting supply is used that is used for.
Background of invention:
The wall embeded formula delay control switch control two-way power supply of fire prevention to high buildings passage special use, the one tunnel is the live wire of civil power, another road is the live wire of emergency standby power.Civil power outage when the condition of a fire or other unexpected storms sexual behavior parts take place, spare emergent power source starts, and this special switch makes the pathway lighting lamp be in normal bright state, and its function is as common delay control switch at ordinary times.
Why the control switch that original technology is produced is damaged often, is because be inconsiderate because of designing, simultaneously also because this design has great difficulty on difficulty.As a rule, require this control switch to have only three terminals: the civil power live wire, the loop line of the live wire of emergency standby power and a lamp does not have zero line side.(two shared zero lines of different electrical power, but zero line side does not insert in the switch enclosure.) like this, design faces a very large difficult point, promptly how to allow two live wires realize good isolation, if can not well isolate two live wires, is easy to take place two sparking (short circuit) phenomenons between live wire so.In practice, sometimes be not that the two-way power supply does not exist the problem of power supply simultaneously, when two live wires all power up, if they are from different power supplys (such as civil power and the little diesel engine generator of own emergency lighting etc.), phase difference between the two, say by reason not have any rule, even might be in the antiphase state.King-sized electrical potential difference is arranged so between the two, and peak value reaches more than 600 volts, and this causes very large difficulty just for the effective isolation between them.Can estimate that there is very big problem just in this in the control switch that original technology is produced, just make product itself suffer many impaired probabilities and make reliability of products reduction, the lost of life.
The utility model has been announced the new practical plan of a cover again after the inventor's Chinese utility model patent 02237553.8, be the improvement to Chinese utility model patent 02237553.8.Isolate the generation of bad this problem for avoiding double fire wire, the design of inventor China utility model patent 02237553.8 allows two live wires be connected on two fixed contacts of redirect relay, avoids postponing to make between double fire wire to be short-circuited because of the action of relay.The relay of two groups contact is adopted in the design of the inventor's 02237553.8 patent, and shortcoming is that number of contacts is many, and promptly the reliability to its work has negative influence, also makes product cost slightly high.
Summary of the invention:
In order to overcome the deficiency of 02237553.8 patent, the utility model provides several new solutions, and improved circuit adopts the relay of single group contact.
The technical scheme that its technical problem that solves the utility model adopts is: similar with 02237553.8 patent, the technical solution of the utility model is: entire circuit is made up of two parts, a part is common delay switch circuit, and another part is the redirect circuit of changing between double fire wire.With the high withstand voltage resistive isolation double fire wire of big resistance, utilizing this big resistance resistance is a storage capacitor current-limiting charge, and the actuating of relay when the storage capacitor charging reaches certain voltage is to satisfy redirect between double fire wire, the energy of relay adhesive self-locking is required, thereby realizes the redirect between double fire wire.Improvement of the present utility model is the method for attachment of translation circuit, reduces the number of relay contact, adopts the relay of single group normally-open normally-close contact, and result of use is ditto the same, but its functional reliability obtains to strengthen.Such solution can reach the purpose of actual requirement equally, is applied to not have in the middle of the specific design of the extraordinary delay control switch of double fire wire wall embeded formula emergency lighting that zero line inserts.
The beneficial effects of the utility model are: the method that employing is more optimized breaks through the difficult point in this type of double fire wire switch designs, has thoroughly eliminated the technical problem of striking sparks between the double fire wire that occurs in the wall embeded formula emergency lighting delay control switch design of fire prevention to high buildings passage special use in the past and switch being burnt.
In existing other Chinese utility model patents, still do not retrieve the content that adopts similar the design's method.
Description of drawings:
Accompanying drawing 1 is one of circuit theory diagrams of the present utility model, case study on implementation 1.
Accompanying drawing 2 is two of circuit theory diagrams of the present utility model, case study on implementation 2.
Accompanying drawing 3 is three of circuit theory diagrams of the present utility model, case study on implementation 3.
Accompanying drawing 4 is four of circuit theory diagrams of the present utility model, case study on implementation 4.
Accompanying drawing 5 is five of circuit theory diagrams of the present utility model, case study on implementation 5.
Figure of abstract is an accompanying drawing 1.
The dotted line left side is its delay switch circuit part in the accompanying drawing 1, and the dotted line right side is a double fire wire redirect circuit part.Accompanying drawing 2 to accompanying drawing 5 is other several embodiments of the switching circuit shown in the accompanying drawing 1.(accompanying drawing 1 and accompanying drawing 3 respectively are complete application circuits), the circuit of accompanying drawing 2, accompanying drawing 4, accompanying drawing 5 is the circuit that can replace additive method (part of the circuit double fire wire redirect circuit that frame of broken lines right side relay J, controllable silicon SCR 2, voltage-stabiliser tube Z2, Z3, diode D1, D2, resistance R 6～R8 are formed in the accompanying drawing 1) part of double fire wire redirect circuit in the accompanying drawing 1, omits the delay switch circuit part.Accompanying drawing 4 and accompanying drawing 5 YS are to be its identical delay switch circuit part of delay switch circuit part with dotted line left side in the accompanying drawing 1.
Embodiment:
The circuit theory of the utility model case study on implementation 1 is seen accompanying drawing 1, is described below:
Element was that common time delayed turn-off electronic switching circuit and common delay switch relatively do not have special character around N1～N3, SCR1, B1 reached.Characteristics of the present utility model show the circuit that relay J, controllable silicon SCR 2, voltage-stabiliser tube Z2, Z3, rectifying tube D1, D2, resistance R 6～R8 are formed, can analyze by accompanying drawing 1, turn-off or the adhesive attitude no matter relay J is in, all will stride across a resistance R 8 between the live wire of emergency standby power and the civil power live wire.R8 is a big resistance, powerful resistance, can tolerate enough high voltages.The live wire of emergency lighting stand-by power supply and civil power live wire are connected on two fixed contacts of same group of contact of relay, and therefore, no matter relay is to discharge or adhesive, these two contacts can not bumped together.Connect if not so, the phenomenon of instantaneous short circuit takes place because relay has action time of delay probably,, also can the contact be burnt because of very large short circuit current is arranged even this time is very short.Such processing method, releasing double fire wire that can be very safe is all charged accidentally and exist very big phase difference to produce the danger of sparking, thoroughly exempts the possibility that this switch is burnt out under particular case.
When the live wire of stand-by power supply was not charged, the normally-closed contact of relay J was connected to the delay switch loop with the civil power live wire, and it is worked as common delay switch.After emergency standby power started, the live wire of stand-by power supply was charged, allowed capacitor C 3 charge through D2, relay J, SCR2, R8 loop, and controllable silicon SCR 2 conductings made the relay J adhesive after C3 charging afterpotential surpassed the conducting voltage of Z2.Its contact disconnects the civil power live wire after the J adhesive, and has striden across R8 the live wire of stand-by power supply is connected, like this live wire of stand-by power supply just only the process relay J L1 (power load) has been connected on the loop of live wire of stand-by power supply.The J locking keeps the adhesive attitude to cut off the power supply up to emergency standby power, till the live wire dead electricity of stand-by power supply.After the live wire dead electricity of stand-by power supply, this switch recovers the usual state before the redirect again.
When this circuit just obtains electricity at stand-by power supply, though, can't obtain enough attract currents because of the R8 resistance is very big, but not conducting of SCR2 at the beginning, C3 is in charging gradually, and the C3 electric charge is full of by the time, SCR2 is conducting just now, and the electric energy of the last storage of C3 can help J to obtain enough attract currents.After the J adhesive short circuit R8 and SCR2, just can maintain attracting state and pin.
This technical scheme is same with the inventor's last patent complete class, also can allow two live wires realize good isolation.New design has reduced the number of contacts of relay, can make circuit simpler and more direct, and functional reliability improves.Its unique design not only can avoid double fire wire to isolate bad problem, and makes product not fragile, and the life-span prolongs greatly, and does not increase the cost of product, and product processing is easier.The utility model provides the complementary design of several distortion simultaneously.They on effect and the effect of the patent of front substantially roughly the same, but further.
Characteristics of the present utility model are:
Circuit of the present utility model is made up of time-delay switch control circuit and two parts of double fire wire redirect circuit.The delay control circuit part can be that the delay switch circuit of manual or touch startup also can be acousto-optic control or other forms of delay switch circuit.Characteristics of the present utility model mainly show on its double fire wire redirect circuit.
In the embodiment shown in the accompanying drawing 11, the civil power live wire is connected on the normally opened contact of relay by a rectifier bridge, common delay switch circuit of polyphone between the positive and negative polarities of rectifier bridge.The moving contact of relay J is connected (D point) with lamp line.A utmost point that links to each other with controllable silicon SCR 2 of relay J coil is connected in the normally-closed contact end of relay, and another utmost point of relay J coil is connected to standby live wire by D2.Z2 is connected with the control utmost point of SCR2 by R6.Storage capacitor C3 one utmost point is connected with the SCR2 negative pole, and another utmost point of another utmost point and relay coil is connected.(the dotted line right side is divided into double fire wire redirect circuit in the accompanying drawing 1)
Accompanying drawing 2 is a kind of variants of the circuit of accompanying drawing 1.In the embodiment 2 of accompanying drawing 2, it connects into analog thyristor circuit with the common triode of two complementary types, and the double fire wire redirect circuit of its character and accompanying drawing 1 is the same.It can replace the double fire wire redirect circuit that J, SCR2, Z2, Z3, D1, D2, R6～R8 formed in the accompanying drawing 1.The civil power live wire is connected in by rectifier bridge B01 on the normally opened contact of relay, (the common delay switch circuit of can contacting between the positive and negative polarities of rectifier bridge.) moving contact of relay J is connected (D point) with lamp line.The utmost point that relay J 01 coil links to each other with triode N01 emitter is connected in the normally-closed contact end of relay, and another utmost point of relay J 01 coil is connected to standby live wire by D02.Z01 is connected with the base stage of triode N02 by R01, R02, and N01, N02 connect into complementary type.Storage capacitor C01 one utmost point is connected with the N02 emitter, and another utmost point of another utmost point and relay coil is connected.
The embodiment 3 of accompanying drawing 3 also is a kind of circuit of said function, principle and accompanying drawing 1 all fours, but it has still adopted the relay of two groups of contacts.
The embodiment 4 of accompanying drawing 4 on principle with preceding different.The elements such as relay of the circuit of double fire wire redirect at ordinary times are connected on the civil power loop, and the electric energy that stores on the storage capacitor replenishes by the civil power loop, by the time the emergency power live wire charged after, have electric current to flow through photoelectrical coupler O, trigger the SCR1 conducting.Storage capacitor C01 discharge back relay J01 coil gets electricly like this, and the other end is jumped in the contact, has disconnected the civil power loop, connects the emergency power supply loop, and relay generation self-locking simultaneously locks in the redirect circuit in the emergency power supply loop, till the emergency power supply outage.The benefit of this design is to use the isolation resistance of bigger resistance, and the redirect time can contract shortlyer simultaneously.Shortcoming is to connect emergency power supply long afterwards again if cut off the power supply at the civil power live wire, may let out electricity because of storage capacitor and too much cause it to lose the required energy of redirect.But general so not conference of situation takes place.In embodiment 4, one utmost point of photoelectrical coupler O input is connected to the normally-closed contact of A point (emergent live wire) and relay J 01 by D01, another utmost point of photoelectrical coupler O input is connected to the utmost point of isolation resistance R01, and another utmost point of isolation resistance R01 is connected to cathode and the D point (lamp line end) of the negative level SCR1 of DW01, C01.The C point connects the normally opened contact of relay J 01, and the normally-closed contact of relay J 01 connects A point (emergent live wire).One utmost point of relay J 01 coil connects the sun level of DW01, C01 respectively, the negative pole of D03, and be connected to photoelectrical coupler O output by R02.Another utmost point of relay J 01 coil links to each other with the sun level of controllable silicon SCR 1.
The embodiment 5 of accompanying drawing 5 and accompanying drawing 4 have roughly the same saved photoelectrical coupler, directly trigger controllable silicon SCR with the emergency power supply live wire by isolation resistance R1 and diode D1, like this it to make a farfetched comparison the circuit of Fig. 4 simpler.No matter take direct triggering, the triggering of photoelectricity coupling triggering or other coupled modes, as the triggering of inductance coupling high mode, it is the same that effect all can be considered.The element that is triggered of double fire wire redirect circuit can be a controllable silicon, also can be connect into complementary type triode or other moment breakover element, as diac, solid-state relay, dry-reed relay etc.Emergent live wire A is connected to the control utmost point of controllable silicon SCR among the embodiment 5 by D1, isolation resistance R1.
Showing in the feature set of the various schemes of the utility model: on two fixed contacts that are connected relay that the live wire of emergency standby power and civil power live wire are direct or indirect.The civil power live wire is connected on the normally opened contact of relay by a rectifier bridge, string advances a common delay switch circuit between the positive and negative polarities of rectifier bridge, this delay switch circuit can be common hand by or touch delay switch circuit, also can be the Auto-delay switch circuit of other types, as acousto-optic control electronic switch or microwave and far infrared switching circuit.For example in accompanying drawing 1: 1, the moving contact of relay J is connected with lamp line, and normally-closed contact is connected to the civil power live wire by a bridge circuit, and normally opened contact is connected on the emergent live wire by a rectifying tube and relay coil and some other elements.2, there is the resistance R 8 of a big resistance to do isolation at ordinary times between the live wire of emergency standby power and the civil power live wire all the time.The end of R8 is connected to a utmost point of controllable silicon SCR 2, and the other end is connected on the moving contact and load of relay.3, relay circuit has controllable silicon SCR 2 to do as shown in Figure 1 connection, and a utmost point of controllable silicon SCR 2 connects one of relay coil and extremely goes up.The contact of relay J can make relay produce self-locking when adhesive, and its coil is connected into emergency lighting loop.4, be in the isolation resistance of isolating two live wires after the self-locking attitude in the circuit and controllable silicon SCR 2 etc. by short circuit, the civil power live wire is jumped disconnected.5, raise because of current potential the full electricity of energy storage capacitor C3 storage back, voltage-stabiliser tube Z2 conducting, and the controllable silicon conducting, the full electric energy of energy storage capacitor storage makes the relay adhesive.The positive pole of Z2 is connected with the positive pole of C3 and relay coil, and the negative pole of Z2 is connected by the control utmost point of R6 and SCR2.The negative pole of C3 is connected with the negative pole of SCR2.
Claims (5)
1, a kind of fire prevention to high buildings passage that is used for is controlled the extraordinary delay control switch of modified model again that mains lighting supply is used, it is characterized in that having two live wire ends, the no zero line contact of switch itself, its formation has with the lower part: common delay switch circuit and the double fire wire redirect circuit that can change between two live wires are formed; Have following connected mode: the civil power live wire is by the normally opened contact of the redirect relay of double fire wire redirect circuit, delay switch circuit and load are connected in the middle of the civil power loop, power up back double fire wire redirect circuit operation at standby live wire, the relay closes of double fire wire redirect circuit is connected to the load light fixture on the standby live wire, and standby live wire links to each other by the normally-closed contact of redirect circuit with the relay of double fire wire redirect circuit; Load one utmost point connecting to neutral line, an other utmost point is connected to the moving contact of the relay of double fire wire redirect circuit.
2, the extraordinary delay control switch of modified model more as claimed in claim 1 is characterized in that: its relay circuit can redirect between two live wires, and can self-locking; Controllable silicon constant voltage circuits for triggering are behind the full electricity of energy storage capacitor storage, and the controllable silicon conducting that it connected makes the relay adhesive can keep self-locking; In embodiment 1, the civil power live wire is connected on the normally opened contact of relay by a rectifier bridge, common delay switch circuit of polyphone between the positive and negative polarities of rectifier bridge, the moving contact of relay J is connected (D point) with lamp line, the utmost point that the relay J coil links to each other with controllable silicon SCR 2 is connected in the normally-closed contact end of relay, another utmost point of relay J coil is connected to standby live wire by D2, Z2 is connected with the control utmost point of SCR2 by R6, storage capacitor C3 one utmost point is connected with the SCR2 negative pole and links to each other with R8, another utmost point of another utmost point and relay coil is connected, the resistance R 8 that a big resistance is arranged between the live wire of emergency standby power and the civil power live wire when relay is in ON state, play the double fire wire buffer action, another utmost point of R8 connects the moving contact and the load of relay J.
3, the extraordinary delay control switch of modified model more as claimed in claim 1, it is characterized in that: in embodiment 1 and embodiment 2, the redirect circuit has a constant voltage trigger equipment, and it can be voltage-stabiliser tube that constant voltage triggers the element that is utilized, and also can be trigger tube or other elements; Breakover element can be the controllable silicon among the embodiment 1, also can be the PNP and the NPN triode of the complementation connection of embodiment 2, and two diodes are done complementary connected mode; In embodiment 2, the civil power live wire is connected in by rectifier bridge B01 on the normally opened contact of relay J 01, and the moving contact of relay J 01 is connected (D point) with lamp line; The utmost point that relay J 01 coil links to each other with triode N01 emitter is connected in the normally-closed contact end of relay, and another utmost point of relay J 01 coil is connected to standby live wire by D02.Z01 is connected with the base stage of triode N02 by R01, R02, and N01, N02 connect into complementary type; Storage capacitor C01 one utmost point is connected with the N02 emitter, another utmost point of another utmost point and relay coil is connected, the resistance R 03 that a big resistance is arranged between the live wire of emergency standby power and the civil power live wire when relay J 01 is in ON state, play the double fire wire buffer action, another utmost point of R03 connects the moving contact and the load of relay J 01.
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4, the extraordinary delay control switch of modified model more as claimed in claim 1, it is characterized in that: in embodiment 4, one utmost point of photoelectrical coupler O input is connected to the normally-closed contact of A point (emergent live wire) and relay J 01 by D01, another utmost point of photoelectrical coupler O input is connected to the utmost point of isolation resistance R01, and another utmost point of isolation resistance R01 is connected to cathode and the D point (lamp line end) of the negative level SCR1 of DW01, C01; The C point connects the normally opened contact of relay J 01, and the normally-closed contact of relay J 01 connects A point (emergent live wire); One utmost point of relay J 01 coil connects the sun level of DW01, C01 respectively, the negative pole of D03, and be connected to photoelectrical coupler O output by R02; Another utmost point of relay J 01 coil links to each other with the sun level of controllable silicon SCR 1, and another utmost point is connected to the moving contact of relay J 01 by D03; The civil power live wire connects the end of YS, and the other end of YS connects the normally opened contact of relay J 01, and standby live wire connects the normally-closed contact A point of relay J 01.
5, the extraordinary delay control switch of modified model more as claimed in claim 1 is characterized in that: in embodiment 5, directly trigger controllable silicon SCR with the emergency power supply live wire by isolation resistance R1 and diode D1; Emergent live wire A is connected to the control utmost point of controllable silicon SCR by D1, isolation resistance R1; One utmost point of relay J coil links to each other with the sun level of controllable silicon SCR, and another utmost point is connected to the moving contact of relay J by D3; The civil power live wire connects the end of YS, and the other end of YS connects the normally opened contact of relay J, and standby live wire connects the normally-closed contact A point of relay J.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240489 CN2657261Y (en) | 2002-07-18 | 2002-07-18 | Re-improved special time-delay control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240489 CN2657261Y (en) | 2002-07-18 | 2002-07-18 | Re-improved special time-delay control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657261Y true CN2657261Y (en) | 2004-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240489 Expired - Fee Related CN2657261Y (en) | 2002-07-18 | 2002-07-18 | Re-improved special time-delay control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657261Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765277B (en) * | 2010-02-05 | 2013-04-03 | 潍坊昌大建设集团有限公司 | Emergency lightening control circuit |
| CN104407530A (en) * | 2014-11-29 | 2015-03-11 | 佛山市顺德区宏泽电器制造有限公司 | Off-delay switching device |
-
2002
- 2002-07-18 CN CN 02240489 patent/CN2657261Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765277B (en) * | 2010-02-05 | 2013-04-03 | 潍坊昌大建设集团有限公司 | Emergency lightening control circuit |
| CN104407530A (en) * | 2014-11-29 | 2015-03-11 | 佛山市顺德区宏泽电器制造有限公司 | Off-delay switching device |
| CN104407530B (en) * | 2014-11-29 | 2017-05-03 | 广东宏日科技股份有限公司 | Off-delay switching device |
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| 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 |