CN209280621U - A kind of experimental rig of signal relay contactor material heat sealability - Google Patents
A kind of experimental rig of signal relay contactor material heat sealability Download PDFInfo
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- CN209280621U CN209280621U CN201821760851.6U CN201821760851U CN209280621U CN 209280621 U CN209280621 U CN 209280621U CN 201821760851 U CN201821760851 U CN 201821760851U CN 209280621 U CN209280621 U CN 209280621U
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- signal relay
- filter capacitor
- control circuit
- discharge resistance
- heat sealability
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Abstract
The utility model relates to a kind of experimental rigs of signal relay contactor material heat sealability, it is characterized in that: including at least: silicon rectifier (2), first filter capacitor (3), discharge resistance (4), discharge loop is constituted by discharge resistance (4), there are control circuit (7) at signal relay (5) both ends, the switch (11) of connection signal relay (5) between the first filter capacitor (3) and discharge resistance (4), switch (11) connects cut-off point as subject contact (1), signal relay (5) and control circuit (7) electrical connection, resistance (4) is put to be electrically connected with control circuit (7), control Push And Release is carried out to signal relay (5) by control circuit (7), control circuit (7) simultaneously records tested contact (1) status information, termination power is inputted in silicon rectifier (2), In silicon rectifier (2) output end and connect the first filter capacitor (3)；The experimental rig of this signal relay contactor material heat sealability, can selection in signal relay contact design to relay contact material type selecting, structure, verification method is provided, it is high-efficient.
Description
Technical field
The utility model relates to a kind of experimental rig of contact resistance fusion welding energy, especially a kind of signal relay contact materials
Expect the experimental rig of heat sealability.
Background technique
Though the contact resistance fusion welding for the signal relay that China uses is preferable, but still be can melting welding contactor material, in order to
So that the signal relay in China is met international standards, make our relay tip without the anxiety of melting welding, for this reason, it may be necessary to detect silver-
The resistance fusion welding energy of silver-colored graphite contact.Therefore anti-melting welding test is carried out using silicon rectifier and Resistor-Capacitor Unit, is a kind of intuitive degree
Height, it is easy to operate, and the contact measurement method of advantage of lower cost, it is applied, is had very strong in melting welding context of detection
Practical value.
Filter capacitor is usually utilized, in hookup, when tested contact access failure, capacitor charging, capacitor both ends reach
To certain charging voltage, electric current I=0 in circuit, artificial closing relay switch, relay energized are tested contact at this time,
At this moment capacitor generates a pulse current by being tested contact, disconnects switch, relay is fallen, and is tested by tested contact electric discharge
Contact disconnects, then combination switch, and test is repeated several times, and sight looks into whether tested contact is bonded.
There are artificial factors for this test method by artificial observation signal relay contactor material heat sealability, simultaneously
Low efficiency, historical data also do not record.
Summary of the invention
The utility model provides a kind of experimental rig of signal relay contactor material heat sealability, can be in signal relay
To the selection of relay contact material type selecting, structure when contact design, verification method is provided, it is high-efficient.
The technical solution that the utility model solves is: being related to a kind of test dress of signal relay contactor material heat sealability
It sets, it is characterized in that: including at least: silicon rectifier, the first filter capacitor, discharge resistance constitute discharge loop by discharge resistance,
There is control circuit at signal relay both ends, and the switch of connection signal relay, is opened between the first filter capacitor and discharge resistance
It is tested contact, signal relay and control circuit electrical connection that pass, which connects cut-off point, puts resistance and is electrically connected with control circuit, by controlling
Circuit processed carries out control Push And Release to signal relay, and control circuit simultaneously records tested contact state information, defeated in silicon rectifier
Enter termination power, in silicon rectifier output end and connects the first filter capacitor.
The discharge resistance and power supply negative terminal are simultaneously connected to the second filter capacitor, and the second filter capacitor is simultaneously connected to inductance L line
Circle.
First filter capacitor is that one or more capacitors are connected in parallel.
Second filter capacitor is that one or more capacitors are connected in parallel.
The control circuit includes at least processor and display, and processor has multi-channel A/D input port, wherein all the way
A/D input port is electrically connected with discharge resistance, for obtaining the voltage or current signal of discharge resistance；Another way A/D input terminal
Mouth is electrically connected with tested contact, for obtaining the voltage or current signal of discharge resistance.
The working principle of the utility model is: using filter capacitor, in hookup, when tested contact access failure, silicon
Rectifier rectification, capacitor charging, capacitor both ends reach relatively high voltage, and electric current I=0, closing relay are opened in circuit at this time
Pass, makes relay energized, is tested contact, and capacitor is discharged by tested contact, at this moment generates a pulse current by being tested
Contact, relay switch, relay are fallen, and are tested contact and are disconnected, then close relay switch, test is repeated several times, sight is looked into
Tested contact whether melting welding.
The utility model has the advantages that: it is anti-that tested contact of the contact after test process can be tested out by circuit operation
Melting welding performance, and operating operation test can be repeated, the action frequency of meter relay are easy to operate and conveniently.
The utility model is described further below with reference to embodiment attached drawing.
Detailed description of the invention
Fig. 1 is one circuit diagram of the utility model embodiment；
Fig. 2 is two circuit diagram of the utility model embodiment；
Fig. 3 is signal relay schematic diagram.
In figure: 1, being tested contact；2, silicon rectifier；3, the first filter capacitor；4, discharge resistance；5, signal relay；6,
Second filter capacitor；7, control circuit；8, inductance L；9, processor；10, display；11, it switchs.
Specific embodiment
Embodiment 1
As shown in figures 1 and 3, the utility model relates to a kind of experimental rig of signal relay contactor material heat sealability,
Include: silicon rectifier 2, the first filter capacitor 3, discharge resistance 4, discharge loop is constituted by discharge resistance 4, in the first filter capacitor
The switch 11 of connection signal relay 5 between 3 and discharge resistance 4, it is tested contact 1, signal relay 5 that switch 11, which connects cut-off point,
Be electrically connected with control circuit 7, put resistance 4 and be electrically connected with control circuit 7, signal relay 5 is carried out out by control circuit 7 and
Control is closed, control circuit 7 records the status information of tested contact 1, and 4 both ends of discharge resistance and the processor 9 of control circuit 7 are electrically connected
It connects, inputs termination power in silicon rectifier 2, in 2 output end of silicon rectifier and connect the first filter capacitor 3；When signal relay 5 not
When connection, silicon rectifier 2 is rectified, and rectified voltage is exported to charge to the first filter capacitor 3, when reaching certain input crest voltage,
Charging current I=0, control circuit 7 control closure signal relay 5, and signal relay 5 picks up, and connect tested contact 1, the
One filter capacitor 3 is discharged by tested contact 1 and discharge resistance 4, and 4 both ends of discharge resistance generate a pulse current and connect by tested
Point 1 and discharge resistance 4, signal relay 5 disconnect, and are tested contact 1 and disconnect, and test, the record storage quilt of control circuit 7 is repeated several times
Survey whether contact 1 is bonded, record 4 both end voltage of discharge resistance variation.
First filter capacitor 3 is that one or more capacitors are connected in parallel.
The control circuit 7 includes at least processor 9 and display 10, and processor 9 has multi-channel A/D input port,
In all the way A/D input port be electrically connected with discharge resistance 4, for obtaining the voltage or current signal of discharge resistance 4；Another way A/
D input port is electrically connected with tested contact 1, and for obtaining the voltage or current signal of discharge resistance 4, display 10 is for showing
The voltage waveform of tested contact 1 or/and discharge resistance 4.
Control circuit 7 belongs to existing circuit control technology, and specification does not increase too thin Detailed description of the invention.
Embodiment 2
As shown in Figures 2 and 3, the utility model relates to a kind of experimental rig of signal relay contactor material heat sealability,
It include: silicon rectifier 2, the first filter capacitor 3, the second filter capacitor 6, discharge resistance 4, in the first filter capacitor 3 and electric discharge electricity
The switch 11 of connection signal relay 5 between resistance 4, switch 11 connect cut-off point to be tested contact 1, signal relay 5 and control electricity
Road 7 is electrically connected, and is put resistance 4 and is electrically connected with control circuit 7, carries out control Push And Release to signal relay 5 by control circuit 7,
Control circuit 7 and meter relay action state, 4 both ends of discharge resistance are electrically connected with the processor 9 of control circuit 7, described
Discharge resistance 4 is serially connected with the second filter capacitor 6, and the second filter capacitor 6 is simultaneously connected to inductance L8, when 5 access failure of signal relay,
Silicon rectifier 2 rectifies, the charging of the first filter capacitor 3, when reaching certain input crest voltage, charging current I=0, and control circuit 7
Closure signal relay 5 is controlled, signal relay 5 picks up, and is tested contact 1 and connects, the first filter capacitor 3 is by being tested contact 1
With discharge resistance 4 and the second filter capacitor 6 and and the inductance L 8 that connects discharge, be tested 1 the second filter capacitor of rear end 6 of contact and start
Charging, since the voltage on the second filter capacitor of rear end 6 cannot be mutated, the electric current on inductance L 8 cannot be mutated, so when rear end
Second filter capacitor 6 is equivalent to short circuit, and inductance L8 is equivalent to open circuit, at this moment generates a pulse current by being tested contact 1, control
7 relay switch 11 of circuit processed, relay is fallen, and is tested contact 1 and is disconnected, the second filter capacitor of rear end 6 passes through inductance L 8
Coil discharge is fallen to relay, and after the charge of the second filter capacitor of rear end 6 is discharged, combination switch 11 again of control circuit 7 are more
Secondary to repeat to test, display 10 is used to show the voltage waveform of tested contact 1 or discharge resistance 4.
First filter capacitor 3 and the second filter capacitor 6 is that one or more capacitors are connected in parallel.
The control circuit 7 includes at least processor 9 and display 10, and processor 9 has multi-channel A/D input port,
In all the way A/D input port be electrically connected with discharge resistance 4, for obtaining the voltage or current signal of discharge resistance 4；Another way A/
D input port is electrically connected with tested contact 1, and for obtaining the voltage or current signal of discharge resistance 4, display 10 is for showing
The voltage waveform of tested contact 1 or/and discharge resistance 4.
Control circuit 7 belongs to existing circuit control technology, and specification does not increase too thin Detailed description of the invention.
Claims (5)
1. a kind of experimental rig of signal relay contactor material heat sealability, it is characterized in that: including at least: silicon rectifier (2),
One filter capacitor (3), discharge resistance (4) constitute discharge loop by discharge resistance (4), have control at signal relay (5) both ends
Circuit (7), the connection signal relay (5) between the first filter capacitor (3) and discharge resistance (4)
It switching (11), it is tested contact (1) that switch (11), which connects cut-off point, and signal relay (5) and control circuit (7) are electrically connected,
Discharge resistance (4) is electrically connected with control circuit (7), carries out control Push And Release to signal relay (5) by control circuit (7), control
Circuit (7) processed simultaneously records tested contact (1) status information, inputs termination power in silicon rectifier (2), defeated in silicon rectifier (2)
Outlet simultaneously connects the first filter capacitor (3).
2. the experimental rig of a kind of signal relay contactor material heat sealability according to claim 1, it is characterized in that: described
Discharge resistance (4) and power supply negative terminal and be connected to the second filter capacitor (6), the second filter capacitor (6) is simultaneously connected to inductance L(8) line
Circle.
3. the experimental rig of a kind of signal relay contactor material heat sealability according to claim 1, it is characterized in that: described
The first filter capacitor (3) be that one or more capacitors are connected in parallel.
4. the experimental rig of a kind of signal relay contactor material heat sealability according to claim 2, it is characterized in that: described
The second filter capacitor (6) be that one or more capacitors are connected in parallel.
5. the experimental rig of a kind of signal relay contactor material heat sealability according to claim 1, it is characterized in that: described
Control circuit (7) include at least processor (9) and display (10), processor (9) has multi-channel A/D input port, wherein one
Road A/D input port is electrically connected with discharge resistance (4), for obtaining the voltage or current signal of discharge resistance (4)；Another way A/
D input port is electrically connected with tested contact (1), for obtaining the voltage or current signal of discharge resistance (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821760851.6U CN209280621U (en) | 2018-10-29 | 2018-10-29 | A kind of experimental rig of signal relay contactor material heat sealability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821760851.6U CN209280621U (en) | 2018-10-29 | 2018-10-29 | A kind of experimental rig of signal relay contactor material heat sealability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280621U true CN209280621U (en) | 2019-08-20 |
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ID=67599675
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821760851.6U Active CN209280621U (en) | 2018-10-29 | 2018-10-29 | A kind of experimental rig of signal relay contactor material heat sealability |
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| CN (1) | CN209280621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103324A (en) * | 2018-10-29 | 2020-05-05 | 西安铁路信号有限责任公司 | Method for testing fusion welding property of signal relay contact material |
-
2018
- 2018-10-29 CN CN201821760851.6U patent/CN209280621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103324A (en) * | 2018-10-29 | 2020-05-05 | 西安铁路信号有限责任公司 | Method for testing fusion welding property of signal relay contact material |
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