CN106788363A - A kind of electronic time-delay switch of achievable fault diagnosis - Google Patents
A kind of electronic time-delay switch of achievable fault diagnosis Download PDFInfo
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- CN106788363A CN106788363A CN201710018190.3A CN201710018190A CN106788363A CN 106788363 A CN106788363 A CN 106788363A CN 201710018190 A CN201710018190 A CN 201710018190A CN 106788363 A CN106788363 A CN 106788363A
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- power supply
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 22
- 210000004899 c-terminal region Anatomy 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 14
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/292—Modifications for introducing a time delay before switching in thyristor, unijunction transistor or programmable unijunction transistor switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/284—Modifications for introducing a time delay before switching in field effect transistor switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0027—Measuring means of, e.g. currents through or voltages across the switch
Abstract
Can meet an urgent need the electronic time-delay switch for starting by force the present invention relates to a kind of " two-wire system " that fault diagnosis can be carried out to switch element, an emergency button circuit and an emergency button diagnostic circuit are added between emergency power supply C and load end A, a switch diagnostic circuit is added between live wire L and load end A, the feedback signal of comprehensive its control signal of main control circuit and switch diagnostic circuit, fault diagnosis is carried out to switching circuit elements, and safeguard measure is taken according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly according to diagnostic result, avoid live wire L ends from powering to be crosstalked on emergent C-terminal circuit, simultaneously when the power-off of power supply L ends only has emergency power supply C-terminal powers, remain to enforced opening emergency service.
Description
Technical field
The present invention relates to a kind of electronic time-delay switch, a kind of electronic time-delay switch met an urgent need and open by force is referred specifically to.
Background technology
In order to take into account hommization and energy-conservation, between building ladder or passage illumination it is widely used：Infrared induction, acousto-optic control
The electronic time-delay switch such as system, touch time delay.The common feature of this kind of switch is：Opened when meeting trigger condition, when continuing one section
Between after be automatically switched off.For security against fire, this kind of electronic time-delay switch is required to be designed to：Except fire line terminal（L ends）With it is negative
Carry terminal（A ends）Outside, it is necessary to enforced opening control terminal（C-terminal）.During installation, the enforced opening control end of all switches
Son（C-terminal）It is connected in parallel on emergency power supply line, usually emergency power supply line does not connect power supply, electronic time-delay switch can be with normal switch.When
Running into fire-fighting or other accidents needs to illuminate when ensureing, enforced opening control terminal（C-terminal）And fire line terminal（L ends）Connect
Enter same emergency power supply, all lighting loads being closed will be forced to open, to ensure illumination.Current electronic delay
The on-off circuit of switch is often switch element with controllable silicon.
The electronic time-delay switch of old scheme is included：On-off circuit, switch driving circuit, power supply circuit, delays time to control electricity
Road, sensing circuit,（C-terminal）Signal deteching circuit, switching circuit in series in in electrical circuit and successively with switch driving circuit and
Delay control circuit output end is connected and is controlled by it, sensing circuit（Can be infrared induction, acoustic control, light-operated, remote control, touch
Etc. various kinds of sensors or sensor combinations）Time delay is connected to the trigger signal input of delay control circuit to switch；
（C-terminal）Signal deteching circuit is connected on face terminals（A ends）With enforced opening control terminal（C-terminal）Between, its output end with open
Drive circuit connection is closed, for detecting（C-terminal）Whether there is electric current to flow through, if not detecting electric current, delay switch normally makes
With once detecting electric current with regard to enforced opening on-off circuit.
Using effect is：The enforced opening control terminal of all switches（C-terminal）All link together when mounted, usually（C
End）In vacant state, electronic time-delay switch can be with normal work.Illumination is needed to ensure when fire-fighting or other accidents is run into
When, enforced opening control terminal（C-terminal）Emergency power supply is accessed, now the signal deteching circuit of all of electronic time-delay switch is all examined
Electric current has been measured to flow through（C-terminal）, on-off circuit is directly then opened by switch driving circuit.Because controllable silicon is designed to
" non-full-shape conducting ", after electronic time-delay switch is opened, still there is electrical potential difference at controllable silicon two ends, and the electrical potential difference is usually used to out
State is powered, and is now then taken into account maintenance and is continued always-on.So that existing scheme is not allowed（C-terminal）Fire-fighting in parallel refers between zero line
Show, the fire-fighting equipment such as fire alarm bell.
Patent No.：The utility model patent of CN201520236458.7 is by the cycle during switch is closed
Sexual refractoriness starts C-terminal signal deteching circuit, is flowed through with offsetting（C-terminal）Electric current collect effect, while using simpler height
The signal deteching circuit of effect, and increase signal processing circuit and be acted upon to acquired signal, it is ensured that the stability of switch and
Reliability.Prolong there is provided a kind of electronics for starting by force of meeting an urgent need for allowing other loads in parallel between emergency power supply line and zero line
When switching technique, the technology can ensure that C-terminal signal deteching circuit detects power-on L ends when C-terminal is powered.But this kind of switch is such as
Fruit run into power supply L ends cut-out, only C-terminal emergency service when cannot normal work.Further, since in described electronic time-delay switch
Thyristor typically is used, one of dominant failure mode of the element is to puncture（Short circuit）, can cause after component breakdown
Live wire L ends power supply is directly connected with emergency power supply C-terminal, and the load in all emergency circuits can all start, and the trouble point cannot
Identification, therefore be difficult to exclude.
Present invention
To solve the above problems, the technical scheme that the present invention takes is：A kind of electronic time-delay switch of achievable fault diagnosis, bag
On-off circuit, switch detection circuit, emergency button circuit, switch diagnostic circuit, main control circuit and sensing circuit are included, it is described to open
Powered-down road is connected to load end A and exchanges between live wire L；The trigger signal input of the main control circuit connects with sensing circuit
Connect, output end and on-off circuit and the connection of emergency button circuit, between exchange live wire L and emergency power supply incoming end C loops at least
One switch diagnostic circuit of series connection；The emergency button circuit connected in series is between emergency power supply incoming end C and load end A and acceptor
Control circuit control；The feedback signal of comprehensive itself control signal of main control circuit and switch diagnostic circuit, to on-off circuit unit
Part carries out fault diagnosis, and takes protection according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly according to diagnostic result
Measure.
Described switch diagnostic circuit is located between exchange live wire L and load end A, when main control circuit disconnects on-off circuit
And during closure emergency button circuit, if switch diagnostic circuit detects the feedback signal of electric current, it is judged as on-off circuit unit
Part punctures, and emergency button circuit is locked in into off-state.
Described switch diagnostic circuit is located between emergency power supply incoming end C and load end A, is opened when governor circuit and switched
When circuit and disconnection emergency button circuit, if switch diagnostic circuit detects the feedback signal of electric current, it is judged as emergent opening
Powered-down circuit component punctures, by on-off circuit locking in off position.
Second switch diagnostic circuit is additionally provided with load end A, comprehensive itself control signal of main control circuit and two open
The feedback signal of diagnostic circuit is closed, when the energization of live wire L ends is exchanged and emergency power supply incoming end C is powered off, main control circuit is closed
On-off circuit simultaneously closes off emergency button circuit, and second switch diagnostic circuit detects the feedback signal of electric current, is judged as out
Powered-down circuit component punctures, and emergency button circuit is locked in into off-state.
Switch element in the on-off circuit and emergency button circuit selects thyristor, the semiconductor to open
Close element and use one-way SCR or bidirectional triode thyristor or metal-oxide-semiconductor.
Detection signal is fed back to using current sample coupler in the switch diagnostic circuit, second switch diagnostic circuit
Main control circuit；Or sampling resistor or bilateral diode or thermistor are used as current sample element, then by isolation
Main control circuit is fed back to after circuit.
Detection signal is fed back to by main control circuit using current sample coupler in the emergency button diagnostic circuit；Or
Person uses sampling resistor or bilateral diode or thermistor as current sample element, then by being fed back to after isolation circuit
Main control circuit.
Described sensing circuit is connected with the input of main control circuit, and main control electricity is given by outside trigger signal feedback
Road is processed, and is triggered comprising push button signalling, voice signal, light sensing signal, microwave signal and wireless transmission signal etc. and believed
Number.
Compared with prior art, the beneficial effects of the present invention are：
（1）By adding an emergency button electricity by master control circuit controls between emergency power supply incoming end C and load end A
Road, main control circuit can realize that power-off only has when power firestreak L ends according to control signal and the feedback signal of corresponding detection circuit
When emergency power supply incoming end C powers, enforced opening emergency service is remained to.
（2）At least connected between live wire L ends and emergency power supply incoming end C one and switch diagnostic circuit；Main control circuit
Switching circuit elements are carried out fault diagnosis by the feedback signal of comprehensive its control signal and switch diagnostic circuit, and according to diagnosis
Result takes safeguard measure according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly.
Brief description of the drawings
Fig. 1 is the theory diagram of electronic switch disclosed in CN201520236458.7；
Fig. 2 is the theory diagram of electronic time-delay switch embodiment one of the present invention；
Fig. 3 is the theory diagram of electronic time-delay switch embodiment two of the present invention；
Fig. 4 is the theory diagram of electronic time-delay switch embodiment three of the present invention；
Fig. 5 is electronic time-delay switch example IV theory diagram of the present invention；
Fig. 6 is the implementation principle block diagram of the bright electronic time-delay switch of this institute.
Specific embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with the accompanying drawings and embodiment the present invention is done it is further in detail
Introduce.
Mentality of designing of the invention is：In the case of live wire L ends and the energization of emergency power supply C-terminal or power down, by master control
Switching circuit elements are carried out fault diagnosis by the feedback signal of itself control signal of circuit synthesis processed and switch diagnostic circuit, and
Safeguard measure is taken according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly according to diagnostic result, it is to avoid live wire L ends
Power supply is crosstalked on emergent C-terminal circuit, while when the power-off of power supply L ends only has emergency power supply C-terminal and powers, remaining to enforced opening
Emergency button circuit provides emergency lighting for product.
As shown in Fig. 2 block diagrams, in the embodiment, delay switch includes switch diagnostic circuit to the first embodiment of the present invention
1.1st, on-off circuit 1.2, emergency button circuit 1.3, emergency button diagnostic circuit 1.4, switch detection circuit 1.5, main control electricity
Road 1.6 and sensing circuit 1.7.Described on-off circuit 1.2 is connected to load end A and exchanges between live wire L；Emergency button circuit
1.3 are connected between emergency power supply C-terminal and load A ends；Switch diagnostic circuit 1.1 is connected on live wire L ends；Emergency button diagnosis electricity
Road 1.4 is connected on emergency power supply C-terminal；Switch detection circuit 1.5 is series between main control circuit and on-off circuit, is used to detect
Whether live wire L ends have plant-grid connection；Sensing circuit 1.7 is connected with main control circuit.Main control circuit 1.6 uses single-chip microcomputer or class
As delay switch control integrated circuit.
Under normal operating conditions, when main control circuit has detected signal input, Simultaneous Switching inspection according to sensing circuit
When slowdown monitoring circuit detection live wire L ends power normal, emergency button circuit, ON switch circuit, by load A ends and live wire L ends are disconnected
Be connected, main control circuit timing ON switch circuit for a period of time after, disconnect on-off circuit, then connect emergency button circuit, produce
Product return to holding state；When product is under holding state：When detecting emergency power supply C-terminal and having power supply, main control circuit
It is off-state by locking switch circuit according to the current feedback signal of emergency button diagnostic circuit, treats that emergency power supply C-terminal stops
During power supply, on-off circuit is reverted to treats working condition；When main control circuit opens on-off circuit disconnects emergency button circuit, should
Anxious switch diagnostic circuit detects the feedback signal of electric current, is judged as that emergency button circuit element punctures, and on-off circuit is locked
It is scheduled on closed mode；When live wire L end energization emergency power supplies C-terminal is powered off, main control circuit closing switch circuit is simultaneously closed off should
Anxious on-off circuit, switch diagnostic circuit detects the feedback signal of electric current, is judged as that switching circuit elements puncture, and is opened emergent
Powered-down road is locked in off-state；The feedback signal of comprehensive its control signal of main control circuit and switch diagnostic circuit, to switch
Circuit element carries out fault diagnosis, and is adopted according to the principle that live wire L ends do not turn on directly with emergency power supply C-terminal according to diagnostic result
Measure is fetched protection, it is to avoid live wire L ends power and are crosstalked on emergent C-terminal circuit, while power-off only has emergency power supply C when power supply L ends
During the power supply of end, enforced opening emergency service is remained to.
Specific embodiment circuit theory diagrams of the invention are shown in Fig. 6.
Switch diagnostic circuit 1.1 is by current detecting coupler T1, shunt resistance R2, current limliting divider resistance R4 and R6, voltage stabilizing
Diode Z2 and isolation optocoupler U2 is constituted, and when live wire L ends have electric current to flow through coupler T1 primary, the voltage of secondary coupling is through electricity
After resistance R2 shuntings, R4 and R6 partial pressures, Z2 voltage stabilizings conducting electric current, the letter that optocoupler opposite side will be detected are provided to optocoupler U2 diodes end
Number feeding back to main control circuit is processed.
Emergency button diagnostic circuit 1.4 by current detecting coupler T2, shunt resistance R1, current limliting divider resistance R3 and R5,
Voltage-regulator diode Z1 and isolation optocoupler U1 is constituted, and the circuit can be detected to the current status of emergency power supply C-terminal, and its work is former
Reason reference switch examines circuit 1.1.
Switch detection circuit 1.5 is connected between live wire L ends and main control circuit, and the circuit is by current-limiting resistance R15, voltage stabilizing
Diode Z3, current-limiting resistance R16, isolating diode D1 compositions, the situation that the circuit disconnects in live wire L ends power-on switch circuit
Under, live wire L end power supplys provide signals to main control circuit after resistance R15 current limlitings, voltage-stabiliser tube Z3 voltage stabilizings, R16 resistance current limlitings
Processed, diode D1 provides working power for main control circuit.
On-off circuit 1.2 is made up of bidirectional triode thyristor T3, current limliting divider resistance R8, R9, R12, R14, rectifier bridge DB2, when
When the output end positive and negative electrode of master control circuit controls rectifier bridge DB2 is connected, bidirectional triode thyristor T3 conductings, live wire L ends and load A
End is connected, otherwise bidirectional triode thyristor T3 ends, and live wire disconnects with load.
Emergency button circuit 1.3 is by bidirectional triode thyristor T4, current limliting divider resistance R7, R10, R11, R13, rectifier bridge DB1 groups
Into the on-off circuit is referred to switch by master control circuit controls load A ends and the connection status of emergency power supply C-terminal, its work
Circuit 1.2.
Sensing circuit 1.7 is the signal input part of electronic time-delay switch, and its circuit is connected with main control circuit 1.6, master control
Circuit processed is constituted using single-chip microcomputer or similar delay switch control with integrated circuit.In normal operation, main control is worked as
Circuit 1.6 detects sensing circuit 1.7 signal input, when the Simultaneous Switching detection detection live wire L of circuit 1.5 ends power normal,
Emergency button circuit 1.3 is then disconnected, with live wire L ends be connected at load A ends by ON switch circuit 1.2, and main control circuit timing connects
After logical a period of time of on-off circuit 1.2, on-off circuit 1.2 is disconnected, then connect emergency button circuit 1.3, after the completion of whole process
Product is in holding state.
In the standby state when detecting emergency power supply C-terminal and having power supply, main control circuit 1.6 is diagnosed according to emergency button
The signal of the feedback current of circuit 1.4, is off-state by locking switch circuit 1.2, keeps emergency button circuit 1.3 in connection
State, when emergency power supply C-terminal is stopped power supply, on-off circuit reverts to stand-by operation state；Live wire L ends are broken in the standby state
Electricity, emergency power supply C-terminal is powered, and master controller can determine whether out live wire L ends by switch detection circuit with switch diagnostic circuit signal
It has been powered off that, while can determine whether out that emergency power supply C-terminal has been powered by the current signal of emergency button diagnostic circuit, comprehensive detection letter
Number input be judged as that emergency power supply C-terminal is independently-powered, main control circuit locks in off position on-off circuit, is opened emergent
Powered-down road is locked in on-state, and after emergency power supply C-terminal is stopped power supply, product recovers holding state.
When the on-off circuit 1.2 of delay switch breaks down with emergency button circuit 1.3, can be by switching diagnostic circuit
1.1 take guarantor with the result of emergency button diagnostic circuit 1.4 according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly
Shield measure, it is to avoid live wire L ends power and are crosstalked on emergent C-terminal circuit；When the component breakdown of on-off circuit 1.2, in live wire L
When end energization main control circuit 1.6 disconnects the connection emergency button circuit 1.3 of on-off circuit 1.2, switch diagnostic circuit 1.1 is detected
When having the feedback signal of electric current, it is judged as the component breakdown of on-off circuit 1.2, emergency button circuit is locked in off-state；When
During the component breakdown of emergency button circuit 1.3, open on-off circuit 1.2 in main control circuit 1.6 and disconnect emergency button circuit 1.3
When, emergency button diagnostic circuit 1.4 detects the feedback signal of electric current, is judged as that emergency button circuit element punctures, and will open
Powered-down road locking is in off position.
Second embodiment of the present invention block diagram is as shown in Figure 3.In the embodiment, delay switch includes switch diagnostic circuit
1.1st, on-off circuit 1.2, emergency button circuit 1.3, switch detection circuit 1.5, main control circuit 1.6 and sensing circuit 1.7.Institute
The on-off circuit 1.2 stated is connected to load end A and exchanges between live wire L；Emergency button circuit 1.3 is connected to emergency power supply C-terminal
Between load A ends；Switch diagnostic circuit 1.1 is connected on live wire L ends；Switch detection circuit 1.5 be series at main control circuit with
Between on-off circuit, it is used to detect whether live wire L ends have plant-grid connection；Sensing circuit 1.7 is connected with main control circuit.Main control
Circuit 1.6 is using single-chip microcomputer or similar delay switch control integrated circuit.By the control of main control circuit in the embodiment
Whether system diagnosis on-off circuit has breakdown fault；I.e. when main control circuit disconnects on-off circuit and closure emergency button circuit,
If switch diagnostic circuit detects the feedback signal of electric current, it is judged as that switching circuit elements puncture, by emergency button circuit
It is locked in off-state.The specific implementation and operation principle of its each circuit module will not be described here with embodiment one.
Third embodiment of the invention is as shown in Figure 4.In the embodiment, delay switch includes switch diagnostic circuit 1.4（It is emergent
Switch diagnostic circuit）, on-off circuit 1.2, emergency button circuit 1.3, switch detection circuit 1.5, main control circuit 1.6 and sensing
Circuit 1.7.Described on-off circuit 1.2 is connected to load end A and exchanges between live wire L；Emergency button circuit 1.3 is connected to should
Between urgent telegram source C-terminal and load A ends；Switch diagnostic circuit 1.4 is connected at emergency power supply incoming end C；Switch detection circuit 1.5
It is series between main control circuit and on-off circuit, is used to detect whether live wire L ends have plant-grid connection；Sensing circuit 1.7 and master
Control circuit connection.When governor circuit opens on-off circuit and disconnects emergency button circuit, if switch diagnostic circuit is detected
There is the feedback signal of electric current, be then judged as that emergency button circuit element punctures, by on-off circuit locking in off position.Its each
The specific implementation and operation principle of circuit module will not be described here with embodiment one.
Fourth embodiment of the present invention block diagram is as shown in Figure 5.In the embodiment, delay switch includes switch diagnostic circuit
1.1st, on-off circuit 1.2, emergency button circuit 1.3, switch detection circuit 1.5, second switch diagnostic circuit, main control circuit
1.6 and sensing circuit 1.7.Described on-off circuit 1.2 is connected to load end A and exchanges between live wire L；Emergency button circuit
1.3 are connected between emergency power supply C-terminal and load A ends；Switch diagnostic circuit 1.1 is connected on live wire L ends；Switch detection circuit
1.5 are series between main control circuit and on-off circuit, are used to detect whether live wire L ends have plant-grid connection；Sensing circuit 1.7 with
Main control circuit is connected.Second switch diagnostic circuit is connected at load end A.When exchanging, live wire L ends are powered and emergency power supply connects
When entering to hold C to power off, main control circuit closing switch circuit simultaneously closes off emergency button circuit, and second switch diagnostic circuit is detected
There is the feedback signal of electric current, be judged as that switching circuit elements puncture, emergency button circuit is locked in off-state.Its each electricity
The specific implementation and operation principle of road module will not be described here with embodiment one.
Above-described embodiment is preferrred embodiment of the present invention, it is necessary to explanation, without departing substantially from spirit of the invention and
In the case of its essence, those of ordinary skill in the art work as can make various corresponding changes and deformation according to the present invention, but
These change and deformation should all belong to the protection domain of appended claims of the invention.
Claims (8)
1. a kind of electronic time-delay switch of achievable fault diagnosis, including on-off circuit, switch detection circuit, emergency button electricity
Road, switch diagnostic circuit, main control circuit and sensing circuit, the on-off circuit be connected to load end A with exchange live wire L it
Between；The trigger signal input of the main control circuit is connected with sensing circuit, output end and on-off circuit and emergency button electricity
Road connects, it is characterised in that：At least connected one between exchange live wire L and emergency power supply incoming end C loops and switch diagnostic circuit；
The emergency button circuit connected in series is between emergency power supply incoming end C and load end A and by master control circuit controls；Main control electricity
Switching circuit elements are carried out fault diagnosis by the feedback signal of comprehensive itself control signal in road and switch diagnostic circuit, and according to
Diagnostic result takes safeguard measure according to the principle that live wire L ends and emergency power supply C-terminal are not turned on directly.
2. the electronic time-delay switch of achievable fault diagnosis according to claim 1, it is characterised in that：Described switch is examined
Deenergizing is located between exchange live wire L and load end A, when main control circuit disconnects on-off circuit and closure emergency button circuit
When, if switch diagnostic circuit detects the feedback signal of electric current, it is judged as that switching circuit elements puncture, by emergency button electricity
Road is locked in off-state.
3. the electronic time-delay switch of achievable fault diagnosis according to claim 1, it is characterised in that：Described switch is examined
Deenergizing is located between emergency power supply incoming end C and load end A, when governor circuit opens on-off circuit and disconnects emergency button electricity
Lu Shi, if switch diagnostic circuit detects the feedback signal of electric current, is judged as that emergency button circuit element punctures, and will switch
Circuit is locked in off position.
4. the electronic time-delay switch of achievable fault diagnosis according to claim 3, it is characterised in that：At load end A
It is additionally provided with second switch diagnostic circuit, comprehensive itself control signal of main control circuit and two feedback letters of switch diagnostic circuit
Number, when the energization of live wire L ends is exchanged and emergency power supply incoming end C is powered off, main control circuit closing switch circuit is simultaneously closed off should
Anxious on-off circuit, second switch diagnostic circuit detects the feedback signal of electric current, is judged as that switching circuit elements puncture, should
Anxious on-off circuit is locked in off-state.
5. the electronic time-delay switch of achievable fault diagnosis according to claim 2, it is characterised in that：Emergency power supply is accessed
Emergency button diagnostic circuit is additionally provided between the C and load end A of end, when main control circuit opens on-off circuit and disconnects emergency button
During circuit, emergency button diagnostic circuit detects the feedback signal of electric current, is judged as that emergency button circuit element punctures, and will open
Powered-down road locking is in off position.
6. the electronic time-delay switch of the achievable fault diagnosis according to claim 1, it is characterised in that：The switch electricity
Switch element in road and emergency button circuit selects thyristor, and the thyristor is using unidirectional controllable
Silicon or bidirectional triode thyristor or metal-oxide-semiconductor.
7. the electronic time-delay switch of achievable fault diagnosis according to claim 4, it is characterised in that：The switch diagnosis
Detection signal is fed back to by main control circuit using current sample coupler in circuit, second switch diagnostic circuit；Or use
Sampling resistor or bilateral diode or thermistor as current sample element, then by feeding back to main control after isolation circuit
Circuit.
8. the electronic time-delay switch of achievable fault diagnosis according to claim 5, it is characterised in that：The emergency button
Detection signal is fed back to by main control circuit using current sample coupler in diagnostic circuit；Or use sampling resistor or two-way
Diode or thermistor as current sample element, then by feeding back to main control circuit after isolation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018190.3A CN106788363B (en) | 2017-01-11 | 2017-01-11 | Electronic time delay switch capable of realizing fault diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018190.3A CN106788363B (en) | 2017-01-11 | 2017-01-11 | Electronic time delay switch capable of realizing fault diagnosis |
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| Publication Number | Publication Date |
|---|---|
| CN106788363A true CN106788363A (en) | 2017-05-31 |
| CN106788363B CN106788363B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710018190.3A Active CN106788363B (en) | 2017-01-11 | 2017-01-11 | Electronic time delay switch capable of realizing fault diagnosis |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018615A (en) * | 2017-05-31 | 2017-08-04 | 田涛 | A kind of electronic switch of micro-current control |
| CN108562851A (en) * | 2018-06-13 | 2018-09-21 | 常州同惠电子股份有限公司 | A kind of switch detection protection circuit |
| CN109342937A (en) * | 2018-11-28 | 2019-02-15 | 浙江正泰建筑电器有限公司 | The detection method and detection device of delay switch with fire-fighting or collection control function |
| CN110716131A (en) * | 2018-07-13 | 2020-01-21 | 通用汽车环球科技运作有限责任公司 | Battery switch testing system and method |
| CN111900971A (en) * | 2020-08-07 | 2020-11-06 | 惠州祺瑞电工有限公司 | Two-wire system multi-way electronic switch |
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| CN107018615A (en) * | 2017-05-31 | 2017-08-04 | 田涛 | A kind of electronic switch of micro-current control |
| CN107018615B (en) * | 2017-05-31 | 2024-01-30 | 惠州祺瑞电工有限公司 | Micro-current controlled electronic switch |
| CN108562851A (en) * | 2018-06-13 | 2018-09-21 | 常州同惠电子股份有限公司 | A kind of switch detection protection circuit |
| CN110716131A (en) * | 2018-07-13 | 2020-01-21 | 通用汽车环球科技运作有限责任公司 | Battery switch testing system and method |
| CN110716131B (en) * | 2018-07-13 | 2022-04-05 | 通用汽车环球科技运作有限责任公司 | Battery switch testing system and method |
| CN109342937A (en) * | 2018-11-28 | 2019-02-15 | 浙江正泰建筑电器有限公司 | The detection method and detection device of delay switch with fire-fighting or collection control function |
| CN109342937B (en) * | 2018-11-28 | 2024-04-02 | 浙江正泰建筑电器有限公司 | Detection method and detection device of delay switch with fire protection or centralized control function |
| CN111900971A (en) * | 2020-08-07 | 2020-11-06 | 惠州祺瑞电工有限公司 | Two-wire system multi-way electronic switch |
| CN112600292A (en) * | 2020-12-22 | 2021-04-02 | 深圳市登峰电源有限公司 | Wiring control method and system of emergency power supply controller |
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