CN205898968U - Electronic relay coil overload detection test bench - Google Patents

Electronic relay coil overload detection test bench Download PDF

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Publication number
CN205898968U
CN205898968U CN201620646833.XU CN201620646833U CN205898968U CN 205898968 U CN205898968 U CN 205898968U CN 201620646833 U CN201620646833 U CN 201620646833U CN 205898968 U CN205898968 U CN 205898968U
Authority
CN
China
Prior art keywords
circuit
relay
voltage
testing stand
test bench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620646833.XU
Other languages
Chinese (zh)
Inventor
郭为华
尹少凡
李�杰
李洪伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNMING LOCOMOTIVE DEPOT KUNMING RAILWAY BUREAU
Original Assignee
KUNMING LOCOMOTIVE DEPOT KUNMING RAILWAY BUREAU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KUNMING LOCOMOTIVE DEPOT KUNMING RAILWAY BUREAU filed Critical KUNMING LOCOMOTIVE DEPOT KUNMING RAILWAY BUREAU
Priority to CN201620646833.XU priority Critical patent/CN205898968U/en
Application granted granted Critical
Publication of CN205898968U publication Critical patent/CN205898968U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an electronic relay coil overload detection test bench, including a test benc, the positive fixed mounting of test bench has relay voltage display, relay current display and relay mounting hole, and the front of test bench still is provided with by comparative voltage set button, overload protection pilot lamp and voltage regulation knob, there is 220V alternating current power supply inside expert of test bench, and 220V alternating current power supply has connected gradually single -phase bridge type uncontrollable rectification circuit, RC oscillation circuit and chopper circuit, and at chopper circuit's output fixedly connected with relay group still, and the relay group is connected with the protection circuit, chopper circuit is connected with drive circuit and control circuit. This electronic relay coil overload detection test bench can realize the voltage of direct detection relay in actuation, release to its electric current through relay coil under rated voltage of detectable also can carry out the performance compare test to 4 relays simultaneously.

Description

A kind of electronic relay coil overload detection testing stand
Technical field
This utility model is related to electronic relay technical field, specially a kind of electronic relay coil overload detection Testing stand.
Background technology
Auxiliary reclay used by ss3b type fixed multi-locomotive is all electronic relay, typically by iron core, coil, rank The compositions such as ferrum, contact reed.As long as adding certain voltage at coil two ends, in coil, will pass through certain electric current, from And producing galvanomagnetic-effect, armature will overcome the pulling force of return spring to be drawn to iron core in the presence of electromagnetic attracting force, thus carrying The movable contact of moving armature and stationary contact (normally opened contact) adhesive, after coil blackout, the suction of electromagnetism also disappears therewith, and armature is just Original position can be returned in the counteracting force of spring, make movable contact and original stationary contact (normally-closed contact) adhesive.So inhale Close, discharge, thus having reached conducting in circuit, the purpose of cut-out.Electronic relay, as an accurate part, is The debugging of locomotive, application are brought great convenience with repair and maintenance.But the growth with service life, in addition working environment, A series of impact of external factor such as oxidation, easily causes relay coil to occur abnormal, leads to open coil, short circuit, overheated The faults such as scaling loss occur.Maintenance to electronic relay at present, only visual examination and simple measurement, measurement is mainly Using the resistance of circuit tester measuring coil, detection meanss single and for Static Detection it is difficult to find coil exist stealthy problem, Detect entrucking again after finishing, by power cabinet energizing test, being detected, existing problems are got off to the performance of electronic relay Processed, service testing again after process, process is loaded down with trivial details, work efficiency is low, greatly waste of manpower and material resources.
Utility model content
For problem above, this utility model provides a kind of electronic relay coil overload detection testing stand, meets Daily electronic relay service work, realizes carrying out dynamic detection to relay coil state, so can be with effectively solving Problem in background technology.
For achieving the above object, this utility model provides a kind of following technical scheme: electronic relay coil overload inspection Survey testing stand, including testing stand, the front of described testing stand is installed with relay voltage display, relay current shows Device and relay installing hole, and the front of testing stand is additionally provided with and set button, overload protection display lamp and electricity by comparison voltage Pressure adjustment knob, is connected with 220v alternating current power supply, and 220v alternating current power supply is connected with single-phase bridge in turn not inside described testing stand Controlled rectification circuit, rc oscillating circuit and chopper circuit, are also fixedly connected with relay group in the outfan of chopper circuit, and continue Electrical equipment group is connected with protection circuit, and described chopper circuit is connected with drive circuit and control circuit;
38 decoders and comparison circuit are provided with described protection circuit, positive terminals are provided with comparison circuit and connect with negative Line end, and the outfan of 38 decoders linked together by the negative terminals of cable and comparison circuit, described comparison circuit Positive terminals are connected with sample circuit, and the outfan of comparison circuit is connected with photoelectric coupling circuit.
As a kind of preferred technical scheme of this utility model, the front of described testing stand is provided with SR and test Platform switchs.
As a kind of preferred technical scheme of this utility model, the copped wave element in described chopper circuit uses igbt.
As a kind of preferred technical scheme of this utility model, in described relay group, it is provided with relay, and relay Quantity be four.
Compared with prior art, the beneficial effects of the utility model are: the test of this electronic relay coil overload detection Platform, by arranging protection circuit, provides protection to relay while the overload capacity of detection coil, arranges chopper circuit, Can be detected it under rated voltage, by electric current during relay coil, also can designed, designed timing circuit, and detect identical The heat condition of time interior loop, arranges relay group, can carry out Performance comparision test to 4 relays simultaneously, be conducive to The more excellent relay of performance is picked out in short time.
Brief description
Fig. 1 is this utility model testing stand positive structure schematic;
Fig. 2 is this utility model internal circuit configuration schematic diagram;
Fig. 3 is this utility model protection circuit structural representation.
In figure: 1- testing stand;2- relay voltage display;3- relay current display;4- relay installing hole;5- Button is set by comparison voltage;6- SR;7- overload protection display lamp;8- voltage regulating knob;9- testing stand switchs; 10-220v alternating current power supply;11- single-phase bridge can not rectification circuit;12-rc oscillating circuit;13- chopper circuit;14- drives electricity Road;15- control circuit;16- relay group;17- relay;18- protection circuit;19-38 decoder;20- sample circuit;21- Comparison circuit;22- photoelectric coupling circuit;The positive terminals of 23-;24- bears terminals;25- cable.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Embodiment:
Refer to Fig. 1, Fig. 2 and Fig. 3, this utility model provides a kind of a kind of technical scheme: electronic relay coil mistake Carry Detecting data, including testing stand 1, the front of described testing stand 1 is installed with relay voltage display 2, relay Current Display 3 and relay installing hole 4, and the front of testing stand 1 be additionally provided with by comparison voltage set button 5, overload protect Shield display lamp 7 and voltage regulating knob 8, is connected with 220v alternating current power supply 10 inside described testing stand 1, and 220v alternating current power supply 10 according to Secondary be connected with single-phase bridge can not control rectifying circuit 11, rc oscillating circuit 12 and chopper circuit 13, in the output of chopper circuit 13 End is also fixedly connected with relay group 16, and relay group 16 is connected with protection circuit 18, and described chopper circuit 16 is connected with drive Galvanic electricity road 14 and control circuit 15;
38 decoders 19 and comparison circuit 21 are provided with described protection circuit 18, positive wiring is provided with comparison circuit 21 Hold 23 and negative terminals 24, and the outfan of 38 decoders 19 is connected to the negative terminals 24 of comparison circuit 21 by cable 25 Together, the positive terminals 23 of described comparison circuit 21 are connected with sample circuit 20, and the outfan of comparison circuit 21 is connected with light Electric coupling circuit 22.
Operation principle of the present utility model: input 220v alternating current power supply 10, can not rectification circuit 11 He by single-phase bridge Rc oscillating circuit 12 becomes the output voltage of approximate DC, is then divided into a section different numbers by 13 voltages of chopper circuit The voltage of value, is then transported to four different relays 17 by the voltage of 15 different numerical value of control circuit again and is examined Survey.Protection circuit 18 is exactly to protect whole system, prevents from transshipping scaling loss, the protection circuit 18 action cut-out when relay 17 excessively stream It is carried in the voltage on relay 17.The specific operation principle of protection circuit 18 is: selects when being set 5 three, button by comparison voltage During the closure of one of go side, 38 decoders 19 will accordingly export a voltage to the negative terminals 24 of comparison circuit 21, makees For comparison circuit 21 by comparison voltage.When 20 electric currents by relay 17 being obtained of sample circuit, to be converted to voltage defeated Enter comparison circuit 21 positive terminals 23 when, if the voltage of positive terminals 23 is more than the voltage of negative terminals 24, then compare Circuit 21 exports positive voltage, then photoelectric coupling circuit 22 turns on, then relay 17 works, and relay 17 testing circuit disconnects, electricity Road first reduces testing circuit voltage after disconnecting, then presses SR 6, then circuit recovers conducting;If the voltage of positive terminals 23 Voltage less than negative terminals 24, then comparison circuit 21 exports negative voltage, then photoelectric coupling circuit 22 is not turned on, then relay 17 remain off.It is provided with different current protection values in protection circuit 18 simultaneously, using comparison circuit 21, will be different Reference value is passed through to be introduced comparison circuit 21 by comparison voltage setting button 5, such that it is able to the choosing when testing different relays 17 Select different current protections, make the safety of circuit relatively reliable, relay voltage display 2 and relay current display 3 Show the voltage at relay 17 two ends and the electric current passing through respectively.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model Protection domain within.

Claims (4)

1. a kind of electronic relay coil overload detection testing stand, including testing stand (1) it is characterised in that: described testing stand (1) front is installed with relay voltage display (2), relay current display (3) and relay installing hole (4), And the front of testing stand (1) is additionally provided with and is set button (5), overload protection display lamp (7) and Voltage Cortrol rotation by comparison voltage Button (8), is connected with 220v alternating current power supply (10) inside described testing stand (1), and 220v alternating current power supply (10) be connected with turn single-phase Bridge-type can not control rectifying circuit (11), rc oscillating circuit (12) and chopper circuit (13), chopper circuit (13) outfan also It is fixedly connected with relay group (16), and relay group (16) is connected with protection circuit (18), described chopper circuit (16) connects There are drive circuit (14) and control circuit (15);
38 decoders (19) and comparison circuit (21) are provided with described protection circuit (18), comparison circuit (21) is just provided with Terminals (23) and negative terminals (24), and the outfan of 38 decoders (19) passes through the negative of cable (25) and comparison circuit (21) Terminals (24) link together, and the positive terminals (23) of described comparison circuit (21) are connected with sample circuit (20), and compare The outfan of circuit (21) is connected with photoelectric coupling circuit (22).
2. a kind of electronic relay coil overload detection testing stand according to claim 1 it is characterised in that: described examination The front testing platform (1) is provided with SR (6) and testing stand switch (9).
3. a kind of electronic relay coil overload detection testing stand according to claim 1 it is characterised in that: described cut Copped wave element in wave circuit (13) uses igbt.
4. a kind of electronic relay coil overload detection testing stand according to claim 1 it is characterised in that: described continue It is provided with relay (17) in electrical equipment group (16), and the quantity of relay (17) is four.
CN201620646833.XU 2016-06-27 2016-06-27 Electronic relay coil overload detection test bench Expired - Fee Related CN205898968U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620646833.XU CN205898968U (en) 2016-06-27 2016-06-27 Electronic relay coil overload detection test bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620646833.XU CN205898968U (en) 2016-06-27 2016-06-27 Electronic relay coil overload detection test bench

Publications (1)

Publication Number Publication Date
CN205898968U true CN205898968U (en) 2017-01-18

Family

ID=57769384

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620646833.XU Expired - Fee Related CN205898968U (en) 2016-06-27 2016-06-27 Electronic relay coil overload detection test bench

Country Status (1)

Country Link
CN (1) CN205898968U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107966656A (en) * 2017-11-30 2018-04-27 蒋小辉 A kind of matrix form electromagnetic relay intelligent comprehensive parameter detection device
CN108710004A (en) * 2018-05-24 2018-10-26 苏州惠琪特电子科技有限公司 A kind of electronic component test device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107966656A (en) * 2017-11-30 2018-04-27 蒋小辉 A kind of matrix form electromagnetic relay intelligent comprehensive parameter detection device
CN108710004A (en) * 2018-05-24 2018-10-26 苏州惠琪特电子科技有限公司 A kind of electronic component test device

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

Termination date: 20170627

CF01 Termination of patent right due to non-payment of annual fee