CN116819308A - Electromagnetic relay performance detection device and detection method - Google Patents
Electromagnetic relay performance detection device and detection method Download PDFInfo
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- CN116819308A CN116819308A CN202310923862.0A CN202310923862A CN116819308A CN 116819308 A CN116819308 A CN 116819308A CN 202310923862 A CN202310923862 A CN 202310923862A CN 116819308 A CN116819308 A CN 116819308A
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- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 230000005284 excitation Effects 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
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- 230000009471 action Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 230000001965 increasing effect Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 3
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The invention discloses an electromagnetic relay performance detection device and a detection method, wherein the detection device comprises a device shell, and an excitation module, an indication module, a fixing module and a metering module which are carried on the device shell, wherein the fixing module comprises a plurality of relay fixing seats and is used for realizing the butt joint fixation of a tested relay, the excitation module and the indication module, the excitation module is used for adjusting the excitation voltage of the tested relay, the metering module is used for providing a metering interface so as to monitor the excitation voltage in real time, and the indication module is used for realizing the opening and closing indication of different channels of each tested relay. The invention can detect a plurality of relays at the same time, and the detection and conversion of different channels of the relays are convenient, and the fixed module of the relay can be disassembled and replaced so as to adapt to the detection of the relays with different types, and meanwhile, the metering interface is reserved, so that the efficiency, the universality and the metering performance of the relay can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of component performance detection, and particularly relates to an electromagnetic relay performance detection device and method.
Background
The electromagnetic relay is used as an important micro-electromechanical control device used on an electrical program control device, and whether the performance of the electromagnetic relay meets the index requirement has a key influence on the reliability of the whole control device. Generally, before the control device is debugged, the performance of the electromagnetic relay is detected, and when the electromagnetic relay meets the expected use requirement, the electromagnetic relay is assembled and debugged. In the case of a control device which is produced in a large number, a large number of electromagnetic relays are required to be disposed, and therefore, the work amount of the performance inspection of the electromagnetic relays is large.
There are two general applications for relay performance detection: firstly, all performances of a relay are comprehensively detected through special relay performance detection equipment, and the detection equipment is high in price and is mainly applied to factory performance inspection after relay production; secondly, through setting up simple and easy detection frock, detect the important parameter (such as action voltage and release voltage) of controlling means attention relay, need to carry out independent detection to each kind of relay or relay each passageway simultaneously according to the operation requirement, usually discrete setting up test system (including voltage regulator, voltmeter, relay fixed frock etc.), though the detection low price, detection efficiency is low, the commonality is poor, mainly uses in controlling means research unit to retest the device performance, ensures that the components and parts performance that uses on the controlling means is reliable.
Meanwhile, according to relevant regulations of the national metrology, in order to ensure the unification, accuracy and reliability of the magnitude of the numerical value in detection, the magnitude of the detection equipment or the detection device should be traced regularly according to the national metrology verification regulations or the national calibration regulations. However, for the non-universal special detection device which is independently developed, the design of the measurement reliability is usually not considered, so that after the subsequent detection device is developed, the metering interface is not designed in advance because the metering reliability is not considered in the earlier design, the detection device needs to be disassembled and assembled during the subsequent metering, the metering condition is met, the metering is difficult, and the metering working time is long.
Disclosure of Invention
The invention aims to: based on the problems of engineering application, the invention provides an electromagnetic relay performance detection device and a detection method, which are used for solving the problems of low performance detection efficiency, low universality, poor metering property and the like of important parameters of the electromagnetic relay at present, greatly improving the detection efficiency of the important performance parameters of the electromagnetic relay, enhancing the universality and expansibility of the detection device, shortening the metering working time, providing powerful guarantee for the reliability of the relay, and having engineering popularization conditions.
The invention comprises the following steps: in order to achieve the above purpose, the invention provides an electromagnetic relay performance detection device, which comprises a device shell, and an excitation module, an indication module, a fixing module and a metering module which are carried on the device shell, wherein the fixing module comprises a plurality of relay fixing seats and is used for realizing the butt joint fixation of a tested relay, the excitation module and the indication module, the excitation module is used for adjusting the excitation voltage of the tested relay, the metering module is used for providing a metering interface so as to monitor the excitation voltage in real time, and the indication module is used for realizing the opening and closing indication of different channels of each tested relay.
Further, the indication module comprises a circuit board, an indicator switch, an indicator power supply and a change-over switch, wherein the indicator, the indicator power supply and the indicator switch are connected in series on the circuit board to form an output loop, the output channels of the tested relays are connected in series with the corresponding indicators to form an indicator loop (the on-off of different channels of the tested relays can be displayed through one indicator, the on-off of different channels of the tested relays can also be displayed through different indicators), and the indicator loops are connected in parallel in the output loop, and the switching of the output channels is realized through the change-over switch.
Further, the indicators are arranged in groups, the number of the groups of the indicators corresponds to the number of the relay fixing seats, the types of the indicators in each group correspond to the number of the output channels of the relay to be tested, and each output channel of the relay to be tested is connected with the corresponding indicator in series to form an indicator loop.
Further, the number of conversion interfaces of the conversion switches corresponds to the number of output channels of the relay to be tested, and the number of the conversion switches corresponds to the number of relay fixing seats, so that switching of the output channels of the relay to be tested is achieved.
Further, the device shell comprises a machine box bottom plate, a machine box body and a machine box panel which are detachably connected, and is used for protecting the detection device, a display panel is provided, character identification can be carried out on the shell, the name or the content of each part can be visually displayed, and the operation of detection personnel is facilitated.
Further, the relay fixing seat is welded on the circuit board and is matched with an interface of the relay to be tested; the circuit board is detachably connected to the chassis panel through the panel upper cover plate. Only need change panel upper cover plate and corresponding circuit board, can realize the performance detection to different model relays, promote detection device's commonality and expansibility.
Further, the panel upper cover plate is fixed on the chassis panel through a rivet pressing screw, and the circuit board is fixed on a boss of the chassis panel. The combined design of the upper cover plate and the boss structure of the panel is favorable for realizing the waterproof and dustproof protection of the circuit board.
Further, the excitation module comprises an adjustable voltage source, a standard resistor and a voltmeter, wherein the adjustable voltage source and the standard resistor are connected in series on the circuit board to form an input loop, and the voltmeter and an input channel of the relay to be tested are respectively connected in parallel on the standard resistor.
Further, the excitation module further comprises a potentiometer knob, wherein the potentiometer knob is used for further adjusting the output voltage of the adjustable voltage source, and the potentiometer knob adopts a precise multi-turn winding potentiometer to realize voltage adjustment.
Further, the metering interface is connected with the voltmeter in parallel, and the metering interface is switched to be a voltage input interface or a voltage output interface through the change-over switch, so that the metering state of the voltmeter in one metering period is ensured to meet the index requirement, and the reliability of the voltmeter is improved.
In addition, the invention also provides an electromagnetic relay performance detection method based on the electromagnetic relay performance detection device, which comprises the following testing processes:
the method comprises the steps of fixing a relay to be tested on a relay fixing seat, opening and closing a set channel of the relay to be tested through an indication module, gradually increasing excitation voltage through an excitation module, and respectively recording the excitation voltage of the corresponding relay channel through observing the state change of the indication module when the action voltage of the relay is reached; and then adjusting the excitation module to start reducing the excitation voltage of the relay to be tested, and when the excitation voltage reaches the release voltage of the relay, respectively recording the release voltage of the corresponding relay channel by observing the state change of the indication module.
The beneficial effects are that:
1. the invention can detect a plurality of relays at the same time, and the detection and conversion of different channels of the relays are convenient, thereby greatly improving the detection efficiency of important performance parameters of the electromagnetic relay;
2. the invention judges the on/off of the relay channel according to the different states of the indicator lamp, and the observation mode is simple and visual;
3. the relay fixing module and the circuit board are convenient to replace according to relay type numbers, can adapt to relays with multiple types and multiple numbers, greatly improve the universality of the detection device and have a wide detection range;
4. the invention specially designs the metering interface, and switches the metering interface into a voltage input or voltage output state through the change-over switch, thereby facilitating the subsequent metering and period checking of the detection device and improving the metering property and reliability.
Drawings
FIG. 1 is a top view of an electromagnetic relay performance detection apparatus in an embodiment of the present invention;
fig. 2 is a front view of an electromagnetic relay performance detection apparatus according to an embodiment of the present invention;
FIG. 3 is a rear view of an electromagnetic relay performance detection apparatus in accordance with an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a detection device for detecting a single electromagnetic relay according to an embodiment of the present invention;
FIG. 5 is a schematic circuit diagram of a detection device for detecting two electromagnetic relays according to an embodiment of the present invention;
FIG. 6 is a schematic circuit diagram of a detecting device in the embodiment of the invention during metering;
FIG. 7 is a schematic circuit diagram of a detecting device during checking according to an embodiment of the present invention;
the drawings include: the power supply comprises a 1-chassis bottom plate, a 2-chassis box body, a 3-chassis panel, a 4-panel upper cover plate, a 5-circuit board, a 6-riveting screw, a 7-nut, an 8-relay fixing seat, a 9-adjustable voltage source terminal, a 10-indicator power source terminal, an 11-change-over switch, a 12-change-over switch, a 13-metering interface, a 14-indicator, a 15-change-over button, a 16-voltmeter, a 17-potentiometer knob, an 18-indicator power source, a 19-adjustable voltage source, 20 and a standard resistor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
Fig. 1 to 3 show an electromagnetic relay performance detecting apparatus according to the present embodiment, including: chassis bottom plate 1, chassis box 2, chassis panel 3, panel upper cover plate 4, circuit board 5, relay fixing base 8, adjustable voltage source terminal 9, indicator power source terminal 10, change-over switch 11, indicator 14, change-over switch 12, measurement interface 13, shift knob 15, voltmeter 16, potentiometer knob 17, indicator power source 18, adjustable voltage source 19.
The device comprises a device shell body, wherein the device shell body is composed of a machine box bottom plate 1, a machine box body 2 and a machine box panel 3, a detection device is protected, a display panel is provided, character identification can be carried out on the shell body, the name or the content of each part can be visually displayed, and the operation of detection personnel is facilitated.
The adjustable voltage source 19, the adjustable voltage source terminal 9, the potentiometer knob 17 and the voltmeter 16 form a relay excitation module for adjusting excitation voltage of the relay to be tested. In order to improve the output precision of the adjustable voltage source 19, the potentiometer knob 17 can be a precise multi-turn winding potentiometer, so that the voltage value output by the adjustable voltage source 19 can be finely adjusted, continuous high-precision voltage is provided for the exciting coil of the relay, and the detection precision of the detection device is improved. The voltage range of the adjustable voltage source 19 is used for covering the action voltage and the release voltage range of the electromagnetic relay to be tested, and is matched with the excitation voltage form of the relay, such as direct current voltage or alternating current voltage.
The circuit board 5, the indicator power supply 18, the indicator power supply terminal 10, the change-over switch 11, the indicator 14 and the switch button 15 form a relay on-off indication module, and the value of the voltmeter 16 during the change is recorded by observing the change of the indicator 14, so that the measurement accuracy is improved. Meanwhile, different indicators 14 are selected according to the number of channels of the relay, for example, the relay is provided with two channels, the indicators 14 select two display indicator lamps, and the switching of the different channels of the relay is realized through the change-over switch 11.
The panel upper cover plate 4 and the relay fixing seat 8 form a relay fixing module, and the relay fixing seat 8 is matched with an interface of a relay, so that the relay fixing device can adapt to detection of relays of different types, and the universality and expansibility of the detection device are improved. The relay fixing seats 8 are welded on the circuit board 5, and the panel upper cover plate 4 fixes the circuit board 5 welded with the relay fixing seats 8 on the chassis panel 3.
The metering interface 13 and the change-over switch 12 form a metering module, and the change-over switch 12 is used for switching the metering interface 13 into a voltage input interface or a voltage output interface. When the voltage input is switched into the voltage input, the voltmeter 16 is disconnected from the adjustable voltage source 19, and the external input standard voltage source is only connected with the voltmeter 16, so that the measurement of the voltmeter 16 is realized; when the voltage output is switched, the voltmeter 16 is connected in parallel to the adjustable voltage source 19, and meanwhile, the voltmeter 16 is connected in parallel with the voltmeter 16 by connecting the metering interface 13 with a high-precision voltmeter, so that the voltmeter 16 can be compared on line, and the reliability of the detection device can be checked periodically.
As shown in fig. 1, the panel upper cover plate 4 is of a detachable design, the panel upper cover plate 4 is fixed with 8 riveting screws 6 through a riveting process, and 8 notches are formed in the panel upper cover plate 4 for fixing the relay fixing seat 8, and the 8 relay fixing seats 8 can be fixed with the chassis panel 3 through the riveting screws 6 on the panel upper cover plate 4.
According to the number of relay fixing seats 8 and the number of channels of the relay, corresponding indicators 14 are designed to display the closing and opening of different channels of the relay, and each indicator 14 is fixed on the chassis panel 3. The switch button 15 is arranged on the chassis panel 3, and when the switch button 15 is pressed, the indicator loop is electrified, and when the switch button is pressed again, the power is cut off; the potentiometer knob 17 is arranged on the chassis panel 3, and the adjustable voltage source 19 outputs different voltages by adjusting the potentiometer knob 17; the voltmeter 16 is mounted on the chassis panel 3 and displays the output voltage of the adjustable voltage source 19 or the input voltage of the metering interface 13.
As shown in fig. 2, the chassis base plate 1, the chassis box 2 and the chassis panel 3 are sequentially connected by bolts, and under the condition that sealing is required, sealing strips or sealing coils can be adopted for sealing and mounting the chassis base plate 1, the chassis box 2 and the chassis panel 3.
The panel upper cover plate 4 is fixed with 8 riveting screws 6 through a riveting process, and the circuit board 5 is fixed on a boss formed on the chassis panel 3 through a nut 7, and meanwhile, when relays of different types or numbers are required to be detected, only the panel upper cover plate 4 and the corresponding circuit board 5 are required to be changed, so that performance detection of different types and relay numbers is realized, and the universality and expansibility of the detection device are improved.
The relay fixing seat 8 can be a locking seat or a socket corresponding to the relay. Information of the detection device can be marked on the case body 2 through UV printing or a nameplate.
As shown in fig. 3, the case body 2 is provided with an adjustable voltage source terminal 9, an indicator power source terminal 10, a change-over switch 11, a change-over switch 12 and a metering interface 13. The number of conversion interfaces of the conversion switch 11 corresponds to the number of channels of the relay to be tested, and different channels of the relay can be detected. The adjustable voltage source terminal 9 and the indicator power source terminal 10 are used for connecting an adjustable voltage source 19 and an indicator power source 18 respectively. The change-over switch 12 is used for switching the state of the metering interface 13, and switching the metering interface 13 to be in a voltage input or voltage output state, so that the subsequent metering and period checking of the detection device are facilitated, and the metering property and reliability are improved.
As shown in fig. 4, according to the arrangement of the pins of the electromagnetic relay, a relay on-off indication circuit is designed, an output channel of the relay is used as an on-off switch to be connected in series in an indicator loop, a switch button 15 is used for powering on or off an indicator power supply 18, the indicator 14 selects a corresponding indication state number according to the channel number of the relay, for example, the electromagnetic relay is 2 channels, so that a 2-color LED indicator lamp can be selected, an initial state indicator lamp is not displayed, when the excitation voltage of the relay is reached, the indicator lamp is on when the relay is attracted, and the voltage displayed on a voltmeter 16 is the action voltage of the relay; when the output voltage of the adjustable voltage source 19 is reduced, the indicator light is turned off when the relay is turned off, and the voltage displayed on the voltmeter 16 is the release voltage of the relay.
For a single electromagnetic relay (here, a two-channel relay is adopted for illustration), an input loop is formed by an adjustable voltage source 19 and a standard resistor 20, an voltmeter 16 and input channels (pins 2 and 7) of the relay to be tested are respectively connected in parallel to the standard resistor 20, and synchronous detection is carried out through the voltmeter 16; the indicator 14, the indicator power supply 18 and the switch button 15 form an output loop, two groups of output channels (pins 1, 3 and 5 form one group of output channels, pins 4, 6 and 8 form the other group of output channels, wherein pins 1 and 8 are normally open) of the relay to be tested are respectively connected with the corresponding indicators in series to form an indicator loop, and each indicator loop is connected in parallel in the output loop, and the switching of the output channels is realized through the change-over switch 11.
As shown in fig. 5, when a plurality of relays are connected, the input channels of all the relays are connected in parallel to an adjustable voltage source 19 (connected in parallel to a standard resistor 20), and meanwhile, the output channels of each relay are connected in series to corresponding indicator loops, and each indicator loop is connected in parallel to the output loop, so that the relays can detect independently of each other.
When the voltage value reaches the action voltage of a certain relay, the indicator 14 corresponding to the relay is on, the excitation voltage is continuously increased until the maximum action voltage of the relay to be tested is reached, all the indicators 14 are on, and the action voltage is measured; and then the excitation voltage is reduced, when the voltage value is reduced to the release voltage of a certain relay, the corresponding indicator 14 of the relay is turned off, the excitation voltage is continuously reduced until the minimum release voltage of the relay to be tested is reached, all the indicators 14 are turned off, and the release voltage measurement is completed. In the embodiment, only 2 measuring circuits of relays are provided, and a plurality of measuring circuits are connected in parallel according to the figure according to the number of synchronous measuring relays designed by the relay fixing seat 8.
As shown in fig. 6, the metering interface 13 is connected in parallel across the voltmeter 16, and the switch 12 is connected between the voltmeter 16 and the adjustable voltage source 19. During metering, the voltmeter 16 and the adjustable voltage source 19 are disconnected through the switch 12, an external standard source is connected through the metering interface 13 to provide a standard voltage value, and the voltmeter is metered according to the verification rule or the calibration rule of the voltmeter.
As shown in fig. 7, during checking the detection device, the voltmeter 16 is connected in parallel to the adjustable voltage source 19 through the switch 12, and an external high-precision voltmeter is connected through the metering interface 13, and when the detection device detects, the accuracy of the voltmeter 16 is checked by comparing the values of the voltmeter 16 and the external high-precision voltmeter on the detection device, so that the metering state of the voltmeter 16 in one metering period is ensured to meet the index requirement, and the reliability of the voltmeter 16 is improved.
The specific detection method of this embodiment is as follows:
1) The installation process comprises the following steps:
the case body 2 is fixed with the case bottom plate 1, the adjustable voltage source terminal 9, the indicator power source terminal 10, the change-over switch 11, the change-over switch 12 and the metering interface 13 are fixed on the case body 2, the indicator 14, the switch button 15, the voltmeter 16 and the potentiometer knob 17 are fixed on the case panel 3, the potentiometer knob 17 is connected with the adjustable voltage source terminal 9, and voltage output can be adjusted through the potentiometer knob 17.
Welding the relay fixing seat 8 on the circuit board 5, and connecting the indicator 14 and the switch button 15 mounting circuit design diagram with pins of the corresponding relay fixing seat 8 on the circuit board 5; the switch button 15 realizes the power on-off of the indicator power terminal 10; the change-over switch 11 is connected with pins of different channels of the relay, and the change-over of the indicator 14 during the detection of the different channels of the relay is realized through the change-over switch 11.
The voltmeter 16 is connected in parallel with the metering interface 13 and the switch 12, and the adjustable voltage source 19 is connected in parallel with the switch 12 and the coil terminal pin of the electromagnetic relay. The metering state or period checking state of the detection device is switched by the changeover switch 12.
The press riveting screw 6 is fixed on the panel upper cover plate 4 through a press riveting process, and the panel upper cover plate 4 and the connected circuit board 5 are fixed on a boss of the chassis panel 3 through the nut 7. Finally, the chassis panel 3 is fixed on the chassis box body 2, and an external adjustable voltage source 19 and an indicator power source 18 are respectively connected to the adjustable voltage source terminal 9 and the indicator power source terminal 10 to supply power to the detection device.
2) The testing process comprises the following steps:
the change-over switch 12 is switched to a test state, the relay to be tested is fixed on the relay fixing seat 8, the change-over switch 11 is arranged on a channel corresponding to the relay to be tested, the switch button 15 is pressed to supply power to the indicators 14, the adjustable voltage source 19 is turned on, the potentiometer knob 17 is adjusted to increase the output voltage of the adjustable voltage source 19, when the action voltage of the relay is reached, the indicators 14 corresponding to the relay are lightened, and the action voltages of the relay channels corresponding to the lightening of the indicators 14 are respectively recorded until all the indicators 14 are fully lightened; then adjusting the potentiometer knob 17 to start reducing the output voltage of the adjustable voltage source 19, when the release voltage of the relay is reached, turning off the indicators 14 corresponding to the relay, and respectively recording the action voltage of the relay channel corresponding to the turning-off of each indicator 14 until all the indicators 14 are turned off; finally, different channels are converted through the change-over switch 11, and the steps are repeated, so that detection of the different channels is completed.
3) Period checking:
at the same time of the above-mentioned test process, a high-precision voltmeter is externally connected through the metering interface 13 to make checking comparison of voltage values.
4) The metering process comprises the following steps:
the change-over switch 12 is switched into a metering state (the voltmeter 16 and the adjustable voltage source 19 are disconnected), a standard voltage source is externally connected through the metering interface 13, different standard voltage values are sent out by the external standard source according to verification rules or calibration standards, the values on the voltmeter 16 are metered, and the voltmeter 16 is metered.
The invention has the advantages that a plurality of relays can be detected at the same time, the detection and conversion of different channels of the relays are convenient, and the fixed module of the relay can be disassembled and replaced so as to adapt to the detection of the relays with different types, and meanwhile, the metering interface is reserved, so that the efficiency, the universality and the metering performance of the relay can be improved.
The above detailed description is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Various modifications, substitutions and improvements of the technical scheme of the present invention will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an electromagnetic relay performance detection device which characterized in that, includes the device casing and carries on excitation module, instruction module, fixed module, the measurement module on the device casing, wherein fixed module includes a plurality of relay fixing bases for realize the butt joint of measured relay and excitation module, instruction module is fixed, excitation module is used for adjusting the excitation voltage of measured relay, and the measurement module is used for providing the measurement interface, thereby real-time supervision excitation voltage, the instruction module is used for realizing the instruction that opens and shuts of each different passageway of measured relay.
2. The electromagnetic relay performance detection apparatus according to claim 1, wherein the indication module comprises a circuit board, an indicator switch, an indicator power supply and a change-over switch, wherein the indicator, the indicator power supply and the indicator switch are connected in series on the circuit board to form an output loop, the output channel of each relay to be tested is connected in series with the corresponding indicator to form an indicator loop, and each indicator loop is connected in parallel in the output loop, and the switching of the output channels is realized through the change-over switch.
3. The electromagnetic relay performance detection apparatus according to claim 2, wherein the indicators are arranged in groups, the number of the groups of the indicators corresponds to the number of the relay holders, the types of the indicators in each group corresponds to the number of the output channels of the relay to be tested, and each output channel of the relay to be tested is connected in series with the corresponding indicator to form an indicator loop.
4. The electromagnetic relay performance detection apparatus according to claim 2, wherein the number of conversion interfaces of the conversion switches corresponds to the number of output channels of the relay under test, and the number of conversion switches corresponds to the number of relay holders.
5. The electromagnetic relay performance detection apparatus according to claim 2, wherein the apparatus housing comprises a chassis base, a chassis box and a chassis panel detachably connected, the circuit board is detachably connected to the chassis panel through a panel upper cover plate, and the relay fixing base is welded to the circuit board.
6. The electromagnetic relay performance detection apparatus of claim 5, wherein the upper cover plate is fixed to the case panel by press-riveting screws, and the circuit board is fixed to the boss of the case panel.
7. The electromagnetic relay performance detection apparatus according to claim 2, wherein the excitation module comprises an adjustable voltage source, a standard resistor and a voltmeter, wherein the adjustable voltage source and the standard resistor are connected in series on the circuit board to form an input loop, and the voltmeter and an input channel of the relay to be tested are respectively connected in parallel on the standard resistor.
8. The electromagnetic relay performance detection apparatus of claim 7, wherein the excitation module further comprises a potentiometer knob for further adjusting the output voltage of the adjustable voltage source, and wherein the potentiometer knob employs a precision multi-turn wound potentiometer to achieve voltage adjustment.
9. The electromagnetic relay performance detection apparatus of claim 7, wherein the metering interface is connected in parallel with the voltmeter and is switched to a voltage input interface or a voltage output interface by a switch.
10. An electromagnetic relay performance detection method based on the electromagnetic relay performance detection apparatus of claim 1, comprising the following test procedures: the method comprises the steps of fixing a relay to be tested on a relay fixing seat, opening and closing a set channel of the relay to be tested through an indication module, gradually increasing excitation voltage through an excitation module, and respectively recording the excitation voltage of the corresponding relay channel through observing the state change of the indication module when the action voltage of the relay is reached; and then adjusting the excitation module to start reducing the excitation voltage of the relay to be tested, and when the excitation voltage reaches the release voltage of the relay, respectively recording the release voltage of the corresponding relay channel by observing the state change of the indication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310923862.0A CN116819308A (en) | 2023-07-24 | 2023-07-24 | Electromagnetic relay performance detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310923862.0A CN116819308A (en) | 2023-07-24 | 2023-07-24 | Electromagnetic relay performance detection device and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116819308A true CN116819308A (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310923862.0A Pending CN116819308A (en) | 2023-07-24 | 2023-07-24 | Electromagnetic relay performance detection device and detection method |
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| Country | Link |
|---|---|
| CN (1) | CN116819308A (en) |
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2023
- 2023-07-24 CN CN202310923862.0A patent/CN116819308A/en active Pending
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