CN106505511B - The circuit be connected for automatic time delay after switch trip - Google Patents
The circuit be connected for automatic time delay after switch trip Download PDFInfo
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- CN106505511B CN106505511B CN201611249009.1A CN201611249009A CN106505511B CN 106505511 B CN106505511 B CN 106505511B CN 201611249009 A CN201611249009 A CN 201611249009A CN 106505511 B CN106505511 B CN 106505511B
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- module
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- voltage
- circuit
- voltage detection
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- Keying Circuit Devices (AREA)
Abstract
The present invention provides the circuits be connected for automatic time delay after switch trip, including mutually independent first input end, the second input terminal, third input terminal and switching output end, also include first voltage detection module, second voltage detection module, voltage transformation module, multilevel iudge module, drive module, switch link block, power supply module and backup circuit breaker；Switching output end is connect as the backup circuit breaker output end for being connected to third input terminal with backend load；First voltage detection module is electrically connected with first input end, and second voltage detection module is electrically connected with the second input terminal, and first voltage detection module is connected with the output of second voltage detection module with voltage transformation module；The input of multilevel iudge module is connected with the output end of voltage transformation module.The beneficial effects of the present invention are：Automatic time delay is connected after primary tripping can be provided to monitored switch.
Description
Technical field
The present invention relates to field of power electronics, and in particular to the circuit be connected for automatic time delay after switch trip.
Background technology
Several breakers for having short-circuit protection function are usually mounted in low-tension distribution box or low-voltage distribution cabinet, and when disconnected
After the device automatic trip of road, whether people are generally possible to judge rapidly due to the excessive influence of backend load power, and correspondence is taken
Corresponding power consumption regulating measures, for example disconnect the electrically connected of high power load equipment or close other unessential load connections
It closing, is again closed the switch of tripping behind the interval by certain time, current breaker only has independent switch function,
The switch of tripping is closed by the personnel of usually requiring again at distribution box, is not always able under actual production and living environment
Timely closing by hand, to bring unnecessary trouble to the production and living of people, it is therefore necessary to design a kind of new electricity
Road is resolved.
Invention content
For the deficiency in the presence of the prior art, the present invention provides the electricity be connected for automatic time delay after switch trip
Road, with realize after low tension switch tripping can automatic time delay for a period of time and the circuit that is connected again.
To achieve the above object, present invention employs the following technical solutions：
For after switch trip automatic time delay be connected circuit, including mutually independent first input end, the second input terminal,
Third input terminal and switching output end, also include first voltage detection module, second voltage detection module, voltage transformation module,
Multilevel iudge module, drive module, switch link block, power supply module and backup circuit breaker；The first input end is used for and quilt
The input terminal of pilot switch, the input terminal of backup circuit breaker are connected in parallel, and the second input terminal is for the output end with monitored switch
It is connected in parallel, for third input terminal for being connected with the output end of backup circuit breaker, switching output end, which is used as, is connected to third input terminal
Backup circuit breaker output end connect with backend load；The first voltage detection module is electrically connected with first input end, for examining
The voltage of first input end is surveyed, second voltage detection module is electrically connected with the second input terminal, the electricity for detecting the second input terminal
Pressure, first voltage detection module are connected with the output of second voltage detection module with voltage transformation module, are corresponded to adjustment
Or the matching voltage that can be identified for digital circuit or the voltage that can be compared；The input of multilevel iudge module and voltage
The output end of conversion module is connected, correspondence first input end, the second input for comparing or judging voltage transformation module output
The voltage status at end；The output of multilevel iudge module is connected with the input of drive module, and the output of drive module is connected with switch
The triggering end of module is connected, and the on-off action end for switching link block is serially connected between third input terminal and switching output end；Institute
It includes delay unit to state drive module or switch link block, to realize in the signal output gap for obtaining multilevel iudge module
Act again the on-off action end of switch link block after a period of time；The power supply module provides voltage transformation module, compares
Judgment module, drive module, the required electricity consumption for switching link block.
Further, the first voltage detection module, second voltage detection module separately include current-limiting resistance and with limit
The concatenated photodiode pair of leakage resistance, the photodiode is to including the photodiode that two head and the tail are reversed and connect.
Further, the voltage transformation module includes first via triode amplification module and the second tunnel three of common ground connection
Triode in pole pipe amplification module, first via triode amplification module and the second road triode amplification module is photosensitive three pole
Pipe, the light that only the corresponding photodiode received in first voltage detection module, second voltage detection module is sent out respectively
Line irradiates；The phototriode of first via triode amplification module is only by the photodiode irradiation of first voltage detection module
When be connected；The phototriode of second road triode amplification module is only by the photodiode irradiation of second voltage detection module
When be connected.
Further, also include the manual switch being series between power supply module and voltage transformation module, supplied for controlling
Power supply of the electric module to voltage transformation module.
Further, the backup circuit breaker and monitored switch are the switch with model specification.
Further, the switch link block is the time relay.
Further, the multilevel iudge module includes the one of which in combinational logic circuit or embeded processor；
The combinational logic circuit includes XOR circuit, and not circuit, wherein two input terminals of XOR circuit,
Two input terminals of and not circuit are respectively correspondingly connected with voltage transformation module output end；Combinational logic circuit also includes to compile
Code circuit, the input of coding circuit and the output end of XOR circuit, the output end of and not circuit, voltage transformation module
Connecting pin after manual switch, which corresponds to, to be connected.
Further, the power supply module includes battery and regulator circuit.
The present invention is provided with the backup circuit breaker of monitored switch, and backup circuit breaker is connection of closing a floodgate under normal circumstances, but by
It needs again to power to backend load after switches module and switching output end in the output of backup circuit breaker, then switch
There is no electric currents to pass through for backup circuit breaker in the case that interconnecting module disconnects；The present invention passes through in first voltage detection module, second
Voltage detection module, voltage transformation module, multilevel iudge module realize that the "on" position to monitored switch judges, when sentencing
When disconnected situation meets trip condition, then by multilevel iudge module output signal, and through drive module trigger switch interconnecting module；
Switches module is connected after delay a period of time, and backup circuit breaker is that backend load is powered by output end of transferring；Backup circuit breaker
Select the switch with model specification for monitored switch, in order to work as backend load it is of problems in the case of can automatic protection.
Compared with the prior art, the present invention has the advantages that：After primary tripping capable of being provided to monitored switch
The function of automatic time delay conducting avoids because cannot find switch in time or carry out caused trouble of closing a floodgate again, in life
There is extensive use in production living；Meanwhile the specification selection of backup circuit breaker is avoided due to security risk caused by power tolerance.
Description of the drawings
Fig. 1 is the logic diagram of circuit of the present invention.
Fig. 2 is the voltage detection module and voltage transformation module circuit theory schematic diagram of the present embodiment.
Specific implementation mode
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
For the circuit that automatic time delay after switch trip is connected, as shown in Figure 1, including mutually independent first input end
J1, the second input terminal J2, third input terminal J3 and switching output end J4 also include first voltage detection module, second voltage inspection
Survey module, voltage transformation module, multilevel iudge module, drive module, manual switch SD1, switch link block, power supply module and
Backup circuit breaker K2；The first input end J1 is in parallel with the input terminal of monitored switch K1, the input terminal of backup circuit breaker K2
Connection, the second input terminal J2 are used to be connected in parallel with the output end of monitored switch K1, and third input terminal J3 with spare for opening
The output end for closing K2 is connected, and switching output end J4 is negative as the backup circuit breaker K2 output ends and rear end for being connected to third input terminal J3
Carry connection；The first voltage detection module is electrically connected with first input end J1, the voltage for detecting first input end J1, the
Two voltage detection modules are electrically connected with the second input terminal J2, and the voltage for detecting the second input terminal J2, first voltage detects mould
Block is connected with the output of second voltage detection module with voltage transformation module, is corresponded to adjustment or matched as digital circuit institute
It can the voltage that identified or the voltage that can be compared；The output end phase of the input of multilevel iudge module and voltage transformation module
Even, for comparing or judging the correspondence first input end J1 of voltage transformation module output, the voltage status of the second input terminal J2；Than
It is connected with the input of drive module compared with the output of judgment module, the output of drive module is connected with switch the triggering end phase of module
Even, the on-off action end for switching link block is serially connected between third input terminal J3 and switching output end J4；The drive module
Or switch link block include delay unit, with realize the signal output gap for obtaining multilevel iudge module for a period of time after
Again act the on-off action end of switch link block；The power supply module includes battery and regulator circuit, to provide voltage
Conversion module, multilevel iudge module, drive module, the required electricity consumption for switching link block, and manual switch SD1 is series at power supply
Between module and voltage transformation module, for controlling power supply of the power supply module to voltage transformation module, it can open, close to monitoring
The voltage detecting identification function of switch, can disconnect in closing by hand, to avoid malfunction；The drive module includes work(
Rate amplifying circuit, this is the prior art, and details are not described herein.
As shown in Fig. 2, the first voltage detection module include current-limiting resistance R1 and with the concatenated photoelectricity of current-limiting resistance R1
Diode pair LED1, second voltage detection module include current-limiting resistance R2 and with the concatenated photodiodes pair of current-limiting resistance R2
LED2, as first input end J1 or normal the second input terminal J2 voltages, then photodiode is to LED1, photodiode pair
LED2 is corresponded to power frequency light-emitting, and corresponding the phototriode Q1, Q2 being irradiated in voltage transformation module；The voltage modulus of conversion
Block includes the first via triode amplification module and the second road triode amplification module of common ground connection；First via triode amplifies mould
Block includes phototriode Q1, and collector resistance R2, the second road triode amplification module includes phototriode Q2, collector electricity
R3 is hindered, and is total radio amplifier connection, it is only corresponding respectively to receive first voltage detection module, second voltage detection module
In photodiode sent out light irradiation；The phototriode Q1 of first via triode amplification module is only by the first electricity
The photodiode of pressure detection module is connected when being irradiated to LED1；The phototriode Q2 of second road triode amplification module only exists
It is connected when being irradiated to LED2 by the photodiode of second voltage detection module, the output end of first via triode amplification module
The output end t2 of t1, the second road triode amplification module are connected with multilevel iudge module respectively；When monitored breaker closing
When conducting, output end t1 is identical as the voltage of output end t2, after the circuit breaker trip of monitoring, under normal circumstances, due to lacking
The irradiation of LED2, Q2 cut-offs so that the voltage of output end t2 is the high level output of stabilization, and the voltage of output end t1 is low level
Output, therefore XOR circuit can be selected in multilevel iudge module, to connect output end t1, t2.
The backup circuit breaker K2 and the switch that monitored switch K1 is with model specification, due to having same self-shield work(
Can, if load end is implicitly present in such as overload condition, backup circuit breaker and can equally trip, usually require to examine backend load at this time
Switch is then turned on after looking into.
The switch link block is the time relay, to determine the time interval for needing to be connected again, to ensure to pacify
Entirely.
The present invention is provided with the backup circuit breaker of monitored switch, and backup circuit breaker is connection of closing a floodgate under normal circumstances, but by
It needs again to power to backend load after switches module and switching output end in the output of backup circuit breaker, then switch
There is no electric currents to pass through for backup circuit breaker in the case that interconnecting module disconnects；The present invention passes through in first voltage detection module, second
Voltage detection module, voltage transformation module, multilevel iudge module realize that the "on" position to monitored switch judges, when sentencing
When disconnected situation meets trip condition, then by multilevel iudge module output signal, and through drive module trigger switch interconnecting module；
Switches module is connected after delay a period of time, and backup circuit breaker is that backend load is powered by output end of transferring；Backup circuit breaker
Select the switch with model specification for monitored switch, in order to work as backend load it is of problems in the case of can automatic protection.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (8)
1. the circuit be connected for automatic time delay after switch trip, it is characterised in that：Including mutually independent first input end,
Two input terminals, third input terminal and switching output end also include first voltage detection module, second voltage detection module, voltage
Conversion module, multilevel iudge module, drive module, switch link block, power supply module and backup circuit breaker；The first input end
Input terminal for input terminal, backup circuit breaker with monitored switch is connected in parallel, and the second input terminal is used for and monitored switch
Output end be connected in parallel, for third input terminal for being connected with the output end of backup circuit breaker, switching output end conduct is connected to the
The backup circuit breaker output end of three input terminals is connect with backend load；The first voltage detection module is electrically connected with first input end
It connects, the voltage for detecting first input end, second voltage detection module is electrically connected with the second input terminal, defeated for detecting second
Enter the voltage at end, first voltage detection module is connected with the output of second voltage detection module with voltage transformation module, by it
Corresponding adjustment matches the voltage that can be identified for digital circuit or the voltage that can be compared；Multilevel iudge module it is defeated
Enter and be connected with the output end of voltage transformation module, for compare or judge voltage transformation module output correspondence first input end,
The voltage status of second input terminal；The output of multilevel iudge module is connected with the input of drive module, the output of drive module with
The triggering end for switching link block is connected, and the on-off action end for switching link block is serially connected in third input terminal and switching output end
Between；The drive module or switch link block include delay unit, and the signal of multilevel iudge module is being obtained to realize
Output gap acts again the on-off action end of switch link block after for a period of time；The power supply module provides voltage modulus of conversion
Block, multilevel iudge module, drive module, the required electricity consumption for switching link block.
2. the circuit according to claim 1 be connected for automatic time delay after switch trip, it is characterised in that：Described first
Voltage detection module, second voltage detection module separately include current-limiting resistance and with the concatenated photodiode pair of current-limiting resistance,
The photodiode is to including the photodiode that two head and the tail are reversed and connect.
3. the circuit according to claim 2 be connected for automatic time delay after switch trip, it is characterised in that：The voltage
Conversion module includes the first via triode amplification module and the second road triode amplification module of common ground connection, first via triode
Triode in amplification module and the second road triode amplification module is phototriode, only corresponding respectively to receive the first electricity
The light irradiation that photodiode in pressure detection module, second voltage detection module is sent out；First via triode amplifies mould
The phototriode of block is only connected when being irradiated by the photodiode of first voltage detection module；Second road triode amplifies mould
The phototriode of block is only connected when being irradiated by the photodiode of second voltage detection module.
4. the circuit according to claim 1 be connected for automatic time delay after switch trip, it is characterised in that：It also include string
The manual switch being coupled between power supply module and voltage transformation module, for controlling confession of the power supply module to voltage transformation module
Electricity.
5. the circuit according to claim 1 be connected for automatic time delay after switch trip, it is characterised in that：It is described spare
Switch is the switch with model specification with monitored switch.
6. according to any circuit be connected for automatic time delay after switch trip in claim 1,2 or 3, feature exists
In：The switch link block is the time relay.
7. the circuit according to claim 4 be connected for automatic time delay after switch trip, it is characterised in that：The comparison
Judgment module includes the one of which in combinational logic circuit or embeded processor；The combinational logic circuit is patrolled comprising exclusive or
Collect circuit, and not circuit, wherein two input terminals of two input terminals of XOR circuit, and not circuit are equal
It is connected respectively voltage transformation module output end；Combinational logic circuit also include coding circuit, the input of coding circuit with it is different
Or the connecting pin of the output end of logic circuit, the output end of and not circuit, voltage transformation module after manual switch corresponds to
It is connected.
8. according to any circuit be connected for automatic time delay after switch trip in claim 1,2 or 3, feature exists
In：The power supply module includes battery and regulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249009.1A CN106505511B (en) | 2016-12-29 | 2016-12-29 | The circuit be connected for automatic time delay after switch trip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249009.1A CN106505511B (en) | 2016-12-29 | 2016-12-29 | The circuit be connected for automatic time delay after switch trip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106505511A CN106505511A (en) | 2017-03-15 |
| CN106505511B true CN106505511B (en) | 2018-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611249009.1A Active CN106505511B (en) | 2016-12-29 | 2016-12-29 | The circuit be connected for automatic time delay after switch trip |
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| Country | Link |
|---|---|
| CN (1) | CN106505511B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777862A (en) * | 1996-11-15 | 1998-07-07 | Thomson Consumer Electronics, Inc. | Fault control circuit for switched power supply |
| CN101984539A (en) * | 2010-11-25 | 2011-03-09 | 杭州三和电控设备有限公司 | Magnetic blow-out switch operation controller |
| CN202374037U (en) * | 2011-12-27 | 2012-08-08 | 广西电控电气集团有限公司 | Double-power on-line automatic switching device |
| CN103956828A (en) * | 2014-04-29 | 2014-07-30 | 宁夏维益电气有限公司 | Medium and low voltage electricity distribution intelligent terminal |
| CN206498182U (en) * | 2016-12-29 | 2017-09-15 | 重庆市渝展电气有限公司 | It is a kind of to be used for the circuit that automatic time delay is turned on after switch trip |
-
2016
- 2016-12-29 CN CN201611249009.1A patent/CN106505511B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777862A (en) * | 1996-11-15 | 1998-07-07 | Thomson Consumer Electronics, Inc. | Fault control circuit for switched power supply |
| CN101984539A (en) * | 2010-11-25 | 2011-03-09 | 杭州三和电控设备有限公司 | Magnetic blow-out switch operation controller |
| CN202374037U (en) * | 2011-12-27 | 2012-08-08 | 广西电控电气集团有限公司 | Double-power on-line automatic switching device |
| CN103956828A (en) * | 2014-04-29 | 2014-07-30 | 宁夏维益电气有限公司 | Medium and low voltage electricity distribution intelligent terminal |
| CN206498182U (en) * | 2016-12-29 | 2017-09-15 | 重庆市渝展电气有限公司 | It is a kind of to be used for the circuit that automatic time delay is turned on after switch trip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106505511A (en) | 2017-03-15 |
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