CN109920314A - A kind of relay fault simulation circuit and relay demonstrator - Google Patents
A kind of relay fault simulation circuit and relay demonstrator Download PDFInfo
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- CN109920314A CN109920314A CN201910305436.4A CN201910305436A CN109920314A CN 109920314 A CN109920314 A CN 109920314A CN 201910305436 A CN201910305436 A CN 201910305436A CN 109920314 A CN109920314 A CN 109920314A
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Abstract
This application discloses a kind of relay fault simulation circuit and relay demonstrator, relay fault simulation circuit includes: fault setting unit and malfunction display unit；The fault setting unit is connected with the malfunction display unit, the fault setting unit is used to be arranged the fault type of relay, and the fault type that the malfunction display unit is used to be arranged according to the fault setting unit carries out corresponding malfunction and shows.A kind of relay fault simulation circuit provided by the present application, the fault type of relay can be simulated, replace needing through entity vehicle come the failure progress simulation teching to relay for the prior art, reduce the loss to entity vehicle, and due to by circuit carry out fault simulation it is more accurate, better teaching efficiency can be obtained.
Description
Technical field
The application belongs to relay instructional technology field more particularly to a kind of relay fault simulation circuit and relay shows
Teaching board.
Background technique
Relay is a kind of electric control device, is when the variation of input quantity (energizing quantity) reaches prescribed requirement, electrical
Make controlled volume that a kind of electric appliance of scheduled Spline smoothing occur in output circuit.There is relay control system (also known as to input back
Road) and by the interactive relationship between control system (also known as output loop).It is usually applied in automation control circuit, it is real
It is one kind " automatic switch " that control high current running is gone with low current on border.Therefore automatic adjustment, safety guarantor are played in circuit
The effects of shield, conversion circuit.In existing relay teaching process, the teaching for relay can only be by entity vehicle
Fault setting is carried out to relay, and certain damage can be caused to vehicle during fault setting, so as to cause teaching
Vehicle can not be operated normally, and then influence the development of teaching；On the other hand, pass through entity vehicle analogue relay failure
Fault setting mode is relatively simple, so that student is not thorough enough for the working principle grasp of relay, influences whether teaching
Quality.
Summary of the invention
This application provides a kind of relay fault simulation circuit and relay demonstrators, can be by with fault simulation
The relay demonstrator of function accurately simulates the fault type of setting relay, and student is enabled preferably to grasp relay
Working principle is improved the quality of teaching, also, by demonstrator can reduce it is existing by entity vehicle come caused by simulated failure
Loss.
The application first aspect provides a kind of relay fault simulation circuit, comprising: fault setting unit and failure shape
State display unit；The fault setting unit is connected with the malfunction display unit, and the fault setting unit is for setting
The fault type of relay is set, the malfunction display unit is used for the fault type being arranged according to the fault setting unit
Corresponding malfunction is carried out to show.
It preferably, further include power supply, the power supply and the fault setting unit and the malfunction display unit connect
It connects.
Preferably, the malfunction display unit specifically includes first resistor and status indicator lamp, the first resistor
One end connect the fault setting unit, the other end connects the status indicator lamp.
Preferably, the fault setting unit specifically includes relay, measurement port and fault setting knob, the relay
The first input end of device, the second input terminal, the first output end, second output terminal and third output end respectively with the measurement port
First port, second port, third port connected with the 4th port, the fifth port of the measurement port, the 6th port,
Seven ports are connect with first port, second port and the third port of the fault setting knob respectively.
Preferably, the fault display unit further includes first port indicator light and second port indicator light, and described first
One end of port led connects the 6th port of the fault setting knob, the other end connection of the first port indicator light
One end of the power cathode, the second port indicator light connects the 8th port of the test port, the second port
The other end of indicator light connects the power cathode.
It preferably, further include power supply indicator and second resistance, it is negative that one end of the power supply indicator connects the power supply
Pole, the other end of the power supply indicator connect one end of the second resistance, described in the other end connection of the second resistance
Positive pole.
It preferably, further include the first fuse and the second fuse, one end of first fuse connects the failure
7th port of knob is set, the other end of first fuse connects the positive pole, and the one of second fuse
End connects the other end of the second resistance, and the other end of second fuse connects the positive pole.
The application second aspect provides a kind of relay demonstrator, including described in demonstrator ontology and first aspect after
Apparatus failure analog circuit, the demonstrator and the relay fault simulation circuit connection.
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
This application provides a kind of relay fault simulation circuits, comprising: fault setting unit and malfunction display are single
Member；The fault setting unit is connected with the malfunction display unit, and the fault setting unit is for being arranged relay
Fault type, the fault type that the malfunction display unit is used to be arranged according to the fault setting unit carries out accordingly
Malfunction show.
A kind of relay fault simulation circuit provided by the present application, can simulate the fault type of relay, take
It needs to carry out simulation teching by entity vehicle come the failure to relay for the prior art, reduces the loss to entity vehicle, and
Due to by circuit carry out fault simulation it is more accurate, better teaching efficiency can be obtained.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the relay fault simulation circuit provided in the embodiment of the present application；
Fig. 2 is a kind of structural schematic diagram of the relay demonstrator provided in the embodiment of the present application；
Appended drawing reference:
1, external power source interface；2, power supply indicator；3, status indicator lamp；4, voltage adjusting knob；5, power switch；6,
Power supply output cathode interface；7, power input cathode interface；8, ammeter；9, relay switch side ports output written instructions lamp；10,
Fault setting knob；11, relay circuit schematic diagram；12, relay port；13, relay；14, voltmeter；15, route connects
Wiring.
Specific embodiment
This application provides a kind of relay fault simulation circuits, can simulate, take to the fault type of relay
It needs to carry out simulation teching by entity vehicle come the failure to relay for the prior art, reduces the loss to entity vehicle, and
Due to by circuit carry out fault simulation it is more accurate, better teaching efficiency can be obtained.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the structural schematic diagram of one of the embodiment of the present application relay fault simulation circuit；
Fig. 2 is the structural schematic diagram of one of the embodiment of the present application relay demonstrator；Below with reference to relay demonstrator and after
Apparatus failure analog circuit specifically describes the working principle of the embodiment of the present application.
As can be seen from Figure 2, it is respectively arranged on the panel of relay demonstrator: external power source interface 1, power supply indicator 2；Shape
State indicator light 3；Voltage adjusting knob 4；Voltage adjusting knob 4；Power switch 5；Power supply output cathode interface 6；Power input is negative
Pole interface 7；Ammeter 8；Relay switch side ports output written instructions lamp 9；Fault setting knob 10；Relay circuit line map；
Relay port 12；Relay 13；Voltmeter 14；Track link 15, and the relay being connect with relay demonstrator inside
Device fault simulation circuit.
External power source interface 1 is used to show the electricity of demonstrator for providing the power supply of relay demonstrator, power supply indicator 2
Source supply state, after demonstrator connects power supply, the indicator light on the port relay 87a is lighted, and status indicator lamp 3 is for showing
The working condition of relay 13, when powering on switch 5, relay switch side ports output written instructions lamp 9 is lighted；Voltage is adjusted
For knob 4 for adjusting the voltage swing for being input to relay coil feeder ear, power switch 5 is installed on the side of relay demonstrator
Face, for connecting external power supply；Power supply output cathode interface 6 and power supply output negative pole interface are connected to by track link 15
Relay port 12 is powered relay 13, and forms current supply circuit, and ammeter 8 flows through relay coil for showing
The size of current at end, relay switch side ports output indicator are used to show that the working condition of relay switch side, failure to be set
Knob 10 totally 4 are set, is connect respectively with 85,30 input terminals of relay 13 and 86,87 output ends, it can be to relay teaching
The relay fault simulation circuit of plate connection carries out the fault setting of short circuit, open circuit and virtual connection；Relay circuit schematic diagram 11
It is used to indicate the internal circuit configuration of involved relay 13 route in kind；Relay port 12 can be connected by track link 15
Being connected to the either power input cathode interface 7 of power supply output cathode interface 6 makes relay 13 to be powered to relay 13
Into corresponding working condition, meanwhile, it is capable to by corresponding detecting instrument in port position to the relay of relay demonstrator
13 working status parameters measure；Relay 13 is directly inserted into relay demonstrator (it should be noted that having on demonstrator
Relay 13 it is corresponding input and output connector, 12 left side of relay port sequentially several the 4th ports and the 5th end
Mouth can be used, carry out using when can directly by relay 13 be inserted into the left side of relay demonstrator sequentially several the 4th
A port and the 5th port)；Voltmeter 14 is used to show the supply voltage at relay coil end, and display includes passing through voltage tune
Save the voltage value after 4 voltage adjusting knob 4 of knob is adjusted；Track link 15 is for connecting power supply output cathode interface 6, power supply
Input cathode interface 7 and relay port 12.
Being discussed in detail for relay fault setting principle will be carried out below:
The application first aspect provides a kind of relay fault simulation circuit, comprising: fault setting unit and failure shape
State display unit；Fault setting unit is connected with malfunction display unit, and fault setting unit is for being arranged relay 13
Fault type, the fault type that malfunction display unit is used to be arranged according to fault setting unit carry out corresponding malfunction
Display.
It should be noted that relay fault simulation circuit provided by the present application, can be set by specific connection line
It sets, so that fault setting unit is able to carry out the setting of relay malfunction, is able to carry out the fault type packet of fault setting
Open circuit fault, short trouble and virtual connection failure are included, for the malfunction of the relay 13 after setting, malfunction display is single
Member can show the working status parameters such as voltage and current when relay 13 is under existing malfunction.
It further, further include power supply, power supply is connect with fault setting unit and malfunction display unit.
Further, malfunction display unit specifically includes 3 status indicator lamp 3 of first resistor and status indicator lamp, the
One end connecting fault setting unit of one resistance, 3 status indicator lamp 3 of other end connection status indicator lamp.
Further, fault setting unit specifically includes relay 13, measurement port and fault setting knob 10, relay
13 first input end, the second input terminal, the first output end, second output terminal and third output end respectively with measurement port
Single port, second port, third port are connected with the 4th port, the fifth port of measurement port, the 6th port, the 7th port point
It is not connect with the first port of fault setting knob 10, second port and third port.
Further, fault display unit further includes first port indicator light and second port indicator light, and first port refers to
Showing the 6th port of one end connecting fault setting knob 10 of lamp, the other end of first port indicator light connects power cathode, the
The other end of 8th port of one end connecting test port of Two-port netwerk indicator light, second port indicator light connects power cathode.
It further, further include 2 power supply indicator 2 of power supply indicator and second resistance, 2 power supply indicator of power supply indicator
2 one end connects power cathode, one end of the other end connection second resistance of 2 power supply indicator 2 of power supply indicator, second resistance
The other end connect positive pole.
It further, further include the first fuse and the second fuse, rotation is arranged in one end connecting fault of the first fuse
7th port of button 10, the other end of the first fuse connect positive pole, one end connection second resistance of the second fuse
The other end of the other end, the second fuse connects positive pole.
It connects with the mains it should be noted that working as relay demonstrator, under normal circumstances the indicator light on the port relay 87a
It can light, and the indicator light on 87 port of relay should be OFF state, when powering on switch 5, the coil of relay 13
Magnetic field is generated after energization, relay switch carries out position switching under the action of a magnetic force, at this point, the finger of the port relay 87a
Show that lamp extinguishes, and the indicator light of 87 port of relay is lighted.After turning off the power switch 5, it is restored to original state.
It fault setting knob 10 a total of 4, is connect respectively with 85,30 input terminals of relay 13 and 86,87 output ends,
The fault setting of short circuit, open circuit, virtual connection can be carried out to route.
(1) short trouble
Fault setting knob 10 (No. 1 interface) is designed to can to carry out breaking structure between line, adjusts fault setting knob
85,30 two conducting wires of input terminal of relay 13 can be carried out short-circuit between conductors by 10.Phenomenon of the failure at this time are as follows: when demonstrator connects electricity
Behind source, the indicator light on 87 port of relay is lighted, and the instruction on the port relay 87a is extinguished.Refer to after powering on switch 5
Show that lamp does not have any variant.
Fault setting knob 10 (No. 2 interfaces) is designed to can to carry out breaking structure between line, adjusts fault setting knob
86 two conducting wires of relay input terminal 30 and output end can be carried out short-circuit between conductors by 10；Phenomenon of the failure at this time are as follows: when connecing
After upper power supply, due to 86 short circuit of port 30 and port, and there is no any load on this circuit, the first fuse is due to circuit mistake
It carries and blows, while the indicator light of the port relay 87a extinguishes.After powering on switch 5, the instruction point of 87 port of relay
Bright, the indicator light of the port relay 87a keeps OFF state.
(2) virtual connection failure
Fault setting knob 10 (No. 3 interfaces) is designed to the structure of swept resistance adjusting, can be by rotating fault setting
Knob 10 adjusts the size of resistance, so that (virtual connection failure is typically due to each of route to the failure of 13 virtual connection of analogue relay
At a interface position such as stitch, after switch director's time use, there is phenomena such as oxidation, aging, corrosion, then will lead to line
There is virtual connection resistance in road, and virtual connection resistance causes circuit the case where pressure drop occur, so that entire circuit can not work normally, such as
Bulb brightness deficiency, component job insecurity etc..)
Fault setting knob 10 (No. 3 interfaces) is connected on relay output end 87, and adjusting fault setting knob 10 can incite somebody to action
The resistance value of this conducting wire can be adjusted, the virtual connection resistance on analog conducting wire.Phenomenon of the failure at this time are as follows: relay after connecting with the mains
The indicator light of the port device 87a is lighted；After powering on switch 5, the indicator light of the port relay 87a extinguishes, 87 end of relay
Indicator light on mouth is lighted, but brightness is inadequate.
(3) open circuit fault
Fault setting knob 10 (No. 4 interfaces) be designed to can individually to conducting wire carry out open circuit structure, it have connection and
Two gears are disconnected, fault setting knob 10 is adjusted, makes fault setting knob 10 that can make line broken circuit.
Fault setting knob 10 (No. 4 interfaces) is connected on 86 ports of relay output end, adjusts fault setting rotation
86 ends can be carried out open circuit by button 10.Phenomenon of the failure at this time are as follows: relay output end 87a port led is normal after connecting with the mains
It lights；After powering on switch 5, relay 87a port led is extinguished, but 87 port led of relay does not work.
Size adjustment can be carried out to the voltage being applied on relay coil by voltage adjusting knob 4, ammeter 8 is used for
Display flows through the current value of relay coil, and voltmeter is for showing the voltage value for flowing through relay coil.By being applied to coil
Alive adjustment, student can be observed respectively by ammeter 8 and voltmeter 14 relay switch movement when current value and
Voltage value promotes the technical skills of student to reinforce grasp of the student to relay working principle.
Relay 13 is frequently used in automotive electrical system, such as lights of vehicle system, and simple light is by opening
It closes with relay 13 and the light of vehicle is controlled.The relay switch side ports output written instructions lamp of this relay demonstrator
The lighting system of 9 analog vehicles.
The application second aspect provides a kind of relay demonstrator, the relay including demonstrator ontology and first aspect
Fault simulation circuit, demonstrator and relay fault simulation circuit connection.
It should be noted that the detailed operation principle and above-described embodiment of relay demonstrator provided by the embodiments of the present application
What is described is consistent, and details are not described herein.
The application has the relay demonstrator of fault simulating function by providing, can be each to relay on demonstrator
Port carries out measurement, the route survey of voltage, and the fault setting knob on demonstrator can carry out accordingly relay
Fault setting effectively simulates real vehicle failure, and student can be by the study of demonstrator, then passes through the survey to the various data of relay
Amount, analysis, so that student can preferably, more profoundly grasp the functional principal and fault mechanism of relay.Demonstrator
Development can effectively save instruction cost and social cost, can greatly improve quality of instruction, improve teaching efficiency, promoted
Efficiency of teaching improves grasp of the student to correlated knowledge point.
Detailed Jie has been carried out to a kind of relay fault simulation circuit provided herein and relay demonstrator above
It continues, for those of ordinary skill in the art, according to the thought of the embodiment of the present application, in specific embodiments and applications
There will be changes, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (9)
1. a kind of relay fault simulation circuit characterized by comprising fault setting unit and malfunction display unit；
The fault setting unit is connected with the malfunction display unit, and the fault setting unit is used to be arranged the event of relay
Hinder type, the fault type that the malfunction display unit is used to be arranged according to the fault setting unit carries out corresponding event
Hinder status display.
2. a kind of relay fault simulation circuit according to claim 1, which is characterized in that it further include power supply, the electricity
Source is connect with the fault setting unit and the malfunction display unit.
3. a kind of relay fault simulation circuit according to claim 2, which is characterized in that the malfunction display is single
Member specifically includes first resistor and status indicator lamp, and one end of the first resistor connects the fault setting unit, the other end
Connect the status indicator lamp.
4. a kind of relay fault simulation circuit according to claim 3, which is characterized in that the fault setting unit tool
Body includes relay, measurement port and fault setting knob, the first input end of the relay, the second input terminal, first defeated
Outlet, second output terminal and third output end respectively with the first port of the measurement port, second port, third port and
The connection of four ports, the fifth port of the measurement port, the 6th port, the 7th port respectively with the fault setting knob the
Single port, second port are connected with third port.
5. a kind of relay fault simulation circuit according to claim 4, which is characterized in that the fault display unit tool
Body includes ammeter, voltmeter and voltage adjusting knob, and one end of the ammeter connects the 4th of the fault setting knob
Port, one end of the voltmeter connect the fifth port of the fault setting knob, the other end of the ammeter with it is described
The other end of voltmeter connects, and one end of the voltage adjusting knob connects the other end of the voltmeter.
6. a kind of relay fault simulation circuit according to claim 5, which is characterized in that the fault display unit is also
Including first port indicator light and second port indicator light, one end of the first port indicator light connects the fault setting rotation
The other end of 6th port of button, the first port indicator light connects the power cathode, the second port indicator light
One end connects the 8th port of the test port, and the other end of the second port indicator light connects the power cathode.
7. a kind of relay fault simulation circuit according to claim 6, which is characterized in that further include power supply indicator and
Second resistance, one end of the power supply indicator connect the power cathode, described in the other end connection of the power supply indicator
The other end of one end of second resistance, the second resistance connects the positive pole.
8. a kind of relay fault simulation circuit according to claim 7, which is characterized in that further include the first fuse and
Second fuse, one end of first fuse connect the 7th port of the fault setting knob, first fuse
The other end connect the positive pole, one end of second fuse connects the other end of the second resistance, described the
The other end of two fuses connects the positive pole.
9. a kind of relay demonstrator, which is characterized in that including demonstrator ontology and the described in any item relays of claim 1-8
Device fault simulation circuit, the demonstrator and the relay fault simulation circuit connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305436.4A CN109920314A (en) | 2019-04-16 | 2019-04-16 | A kind of relay fault simulation circuit and relay demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305436.4A CN109920314A (en) | 2019-04-16 | 2019-04-16 | A kind of relay fault simulation circuit and relay demonstrator |
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| Publication Number | Publication Date |
|---|---|
| CN109920314A true CN109920314A (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910305436.4A Pending CN109920314A (en) | 2019-04-16 | 2019-04-16 | A kind of relay fault simulation circuit and relay demonstrator |
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- 2019-04-16 CN CN201910305436.4A patent/CN109920314A/en active Pending
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