CN113447808B - Intelligent household switch module testing tool system and testing method - Google Patents
Intelligent household switch module testing tool system and testing method Download PDFInfo
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- CN113447808B CN113447808B CN202111011372.0A CN202111011372A CN113447808B CN 113447808 B CN113447808 B CN 113447808B CN 202111011372 A CN202111011372 A CN 202111011372A CN 113447808 B CN113447808 B CN 113447808B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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Abstract
The invention discloses a test tool system and a test method for an intelligent household switch module, which comprises the following steps: MCU; the display screen is used for displaying the closing times of the relay switch to be tested, the type of the relay to be tested and the voltage of the relay to be tested; the key is used for switching the type of the relay to be tested, the voltage of the relay to be tested and the test start of the relay to be tested; the control relay is used for executing an execution instruction sent by the MCU and controlling the connection and disconnection of the relay to be tested; the rectifier bridge is used for converting the alternating voltage into direct voltage to supply power to the system; the capacitor is connected with the rectifier bridge through a resistor and is charged, and then the contact of the relay to be tested is discharged; and the input detection circuit is connected with the rectifier bridge and the relay to be detected and is used for detecting whether the relay to be detected acts or not. The invention has lower cost and convenient use, can test the limit service life of the switch module, and can test the service life of the relays of different types used by the switch modules of different manufacturers under the same load.
Description
Technical Field
The invention belongs to the technical field of switch module testing, and particularly relates to a test tool system and a test method for an intelligent household switch module.
Background
At present, loads controlled by intelligent household switch modules in the market are all capacitive loads, while test equipment in the market can only test resistive loads and inductive loads, and does not test the capacitive loads.
Disclosure of Invention
The invention aims to provide a testing tool system and a testing method for an intelligent household switch module, and aims to solve the problems that the limit service life of the switch module cannot be tested and the connection of a to-be-tested electric appliance is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an intelligence house switch module test fixture system which characterized in that: the method comprises the following steps:
the MCU is used for processing signals of the upper circuit board and sending instructions to the control relay so as to switch the power supply of the relay to be tested and read the switching times of the relay to be tested;
the display screen is used for displaying the closing times of the relay switch to be tested, the type of the relay to be tested and the voltage of the relay to be tested;
the key is used for switching the type of the relay to be tested, the voltage of the relay to be tested and the test start of the relay to be tested;
the control relay is used for executing an execution instruction sent by the MCU and controlling the connection and disconnection of the relay to be tested;
the rectifier bridge is used for converting the alternating voltage into direct voltage to supply power to the system;
the capacitor is connected with the rectifier bridge through a resistor and is charged, and then the contact of the relay to be tested is discharged;
and the input detection circuit is connected with the rectifier bridge and the relay to be detected and is used for detecting whether the relay to be detected acts or not.
The invention also comprises a second shell and a first shell matched with the second shell;
the display screen and the keys are welded on the upper circuit board, the upper circuit board is provided with an upper row of connectors, and data lines for data transmission with the lower circuit board are spliced on the upper row of connectors.
The lower circuit board is further welded with a lower wire discharging connector, a control relay, a capacitor, a power supply terminal, a control terminal used for being connected with a control port of a relay to be tested, a switch terminal used for being connected with a switch contact of the relay and an alternating current terminal connected with an input end of a rectifier bridge, at least four plug-in modules are arranged in the power supply terminal, the control terminal and the switch terminal, the power supply terminal, the control terminal and the switch terminal are distributed in the same straight line and embedded on the side face of a second shell, a cavity used for installing the lower circuit board is arranged in the second shell, four fixing columns are arranged on the lower circuit board, and the lower circuit board is fixed on the second shell through the four fixing columns; the circuit board is arranged in the first shell, and the display screen, the indicator light and the keys are embedded in the upper end face of the first shell;
the splicing module comprises an insulating compression bar, a wiring upright post, a clamping compression post and a spring, wherein the wiring upright post is of a hollow cuboid structure, a sliding cavity is arranged in the wiring upright post, the clamping compression post moving along the inner wall of the sliding cavity is arranged in the sliding cavity, the lower end face of the clamping compression post is connected with one end of the spring, the other end of the spring abuts against the bottom of the wiring upright post, the upper end face of the clamping compression post abuts against the lower end face of the insulating compression bar, and the insulating compression bar penetrates through the upper end face of the wiring upright post and extends out; insulating depression bar, card compression leg, spring are coaxial distribution, the wiring stand with all be provided with stand connecting hole and card compression connecting hole on two the same sides of card compression leg, card compression leg is along sliding cavity up-and-down motion under insulating depression bar's the exerting pressure, makes card compression connecting hole can overlap with the stand connecting hole, the lower terminal surface welding of card compression leg is on circuit board down.
The output end of the rectifier bridge is connected with a power supply terminal arranged on the lower circuit board, and the power supply terminal is used for supplying power to the display screen and the relay to be tested;
the input detection circuit comprises an optical coupler U4, a first pin of the optical coupler U4 is connected with one end of a seventh resistor R7, a second pin of the optical coupler U4 is connected with one end of a ninth resistor R9, and the other ends of the seventh resistor R7 and the ninth resistor R9 are respectively connected with a ninth capacitor C9, a fifteenth capacitor C15 and a tenth resistor R10.
Above-mentioned second casing and first casing are provided with the buckle of mutually supporting, make second casing and first casing detachable connection.
And the lower circuit board is provided with an indicator light for displaying the on and off of the relay to be tested.
The keys are provided with a type selection key and a voltage selection key.
The testing method of the intelligent household switch module testing tool system comprises the following steps:
s1, connecting a 24V power supply to a power supply terminal and a control terminal, wherein the power supply terminal and the control terminal are connected with a control end of a relay to be tested, the switch terminal is connected with a contact of the relay to be tested, a lead of the relay to be tested is plugged in a plugging module corresponding to the control terminal and the switch terminal, the insulating pressure rod is pressed to enable the clamping pressure column to move downwards, when the upright post connecting hole and the clamping pressure connecting hole are overlapped, the lead of the relay to be tested penetrates through the upright post connecting hole to be inserted into the clamping pressure connecting hole, the insulating pressure rod is loosened, the clamping pressure column moves upwards under the action of a spring to enable the lead to be abutted against the upright post connecting hole, and the alternating current terminal is connected with a 220V alternating current power supply;
s2, selecting the type of the relay through the keys, selecting the voltage of the relay to be tested to be 5V, 12V and 24V through the keys, and starting the test by long pressing any key;
s3, sending the set control logic execution signal to a control relay through the MCU, determining that the relay to be tested is damaged when the MCU detects that the attraction time and the control time of the relay to be tested are different by 5 times, and displaying the test time and the total test time of the first adhesion on the display screen at the moment.
The control logic conditions are as follows: 5200MS is period, and 200MS controls pull-in.
The invention has the technical effects and advantages that: the intelligent household switch module testing tool system and the testing method have the advantages that the circuit cost is low, the use is convenient, on one hand, the rectifier bridge converts alternating-current voltage into direct-current voltage required by the system, the direct-current voltage is connected with the capacitor to discharge a relay contact to be tested, the control relay is arranged to operate the on-off of the relay to be tested, so that the limit service life of the switch module can be tested, the service lives of relays of different types used by switch modules of different manufacturers under the same load can be tested, the problem of service life testing of relays of the same type and under the same load of different manufacturers is solved, meanwhile, the optical coupler is disclosed in the invention, the first pin of the optical coupler is connected with one end of the seventh resistor, the second pin of the optical coupler is connected with one end of the ninth resistor, the testing accuracy is improved, and through the matching of the optical coupler and the seventh resistor, the introduction and the impact of strong voltage are avoided when the system is used, and the safety is improved; on the other hand, the operation of connecting the relay to be tested without tools is realized through the insulating pressure rod, the wiring upright post, the clamping pressure post and the spring, the waiting time for replacing the relay to be tested is greatly shortened, the working efficiency is improved, and meanwhile, the problem that poor contact is easily caused when the relay is fixed through the screw rod is avoided.
Drawings
FIG. 1 is a schematic diagram of the module connection of the present invention;
fig. 2 is a cross-sectional view of a jack module of the present invention;
FIG. 3 is a schematic diagram of the testing of the present invention;
FIG. 4 is a waveform diagram of the relay under test of the present invention when it is not engaged;
FIG. 5 is a waveform diagram of the present invention from open to close of the relay under test;
FIG. 6 is a schematic diagram of a test of the relay under test of the present invention;
FIG. 7 is a front view of the tooling system of the present invention;
fig. 8 is a cross-sectional view of a switch terminal of the present invention.
In the figure: 1. a display screen; 2. pressing a key; 3. a capacitor; 5. controlling the relay; 6. a power supply terminal; 7. a control terminal; 8. a switch terminal; 9. a plug-in module; 10. MCU; 11. a rectifier bridge; 12. an indicator light; 13. a first housing; 14. a second housing; 41. an upper row of wire connectors; 42. a lower row of wire connectors; 91. an insulating compression bar; 92. a wiring upright post; 93. clamping a pressing column; 94. a spring; 95. connecting holes of the upright posts; 96. the connecting hole is clamped and pressed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an intelligent household switch module testing tool system as shown in figures 1, 7 and 8, which comprises: as shown in fig. 1;
the MCU10, the MCU10 is used for processing signals of the upper circuit board and sending instructions to the control relay 5 to switch the power supply of the relay to be tested and read the switching times of the relay to be tested;
the relay testing device comprises a display screen 1, wherein the display screen 1 is used for displaying the closing times of a relay switch to be tested, the type of the relay to be tested and the voltage of the relay to be tested, the type of the display screen 1 is any one of an LCD (liquid crystal display) or an LED (light emitting diode), and in the embodiment, the display screen 1 uses the LCD;
the key 2 is used for switching the type of the relay to be tested, the voltage of the relay and the starting of the relay test;
the control relay 5 is used for executing an execution instruction sent by the MCU10 and controlling the connection and disconnection of the relay to be tested;
the rectifier bridge 11 is used for converting alternating-current voltage into direct-current voltage to supply power to a system, the output end of the rectifier bridge 11 is connected with a power supply terminal 6 arranged on the lower circuit board, and the power supply terminal 6 is used for supplying power to the system, the display screen 1 and a relay to be tested; the lower circuit board is also welded with a control terminal 7 used for being connected with a control port of the relay to be tested, a switch terminal 8 used for being connected with a switch contact of the relay to be tested and an alternating current terminal connected with the input end of the rectifier bridge 11;
the capacitor 3 is connected with the rectifier bridge 11 through a resistor and charged, and then the contact of the relay to be tested is discharged, in the embodiment, the relay to be tested comprises a 5V magnetic latching relay, a 12V magnetic latching relay, a 24V magnetic latching relay, a 5V common relay, a 12V common relay and a 24V common relay;
as shown in fig. 6, the input detection circuit is connected to the rectifier bridge 11 and the relay to be tested, and is configured to detect whether the relay to be tested works, the input detection circuit includes an optical coupler U4, a first pin of the optical coupler U4 is connected to one end of a seventh resistor R7, a second pin of the optical coupler U4 is connected to one end of a ninth resistor R9, and the other ends of the seventh resistor R7 and the ninth resistor R9 are respectively connected to a ninth capacitor C9, a fifteenth capacitor C15 and a tenth resistor R10.
As shown in fig. 1, 7 and 8, the display screen 1 and the keys 2 are welded on an upper circuit board, the upper circuit board is provided with an upper row of connectors 41, data lines for data transmission with a lower circuit board are plugged on the upper row of connectors 41, the lower circuit board is provided with an indicator lamp 12 for turning on and off a relay to be tested, the lower circuit board is welded with an MCU10, a lower row of connectors 42, a control relay 5, the indicator lamp 12, a capacitor 3, a power supply terminal 6, a control terminal 7, a switch terminal 8 and an alternating current terminal, at least four plugging modules 9 are arranged in the power supply terminal 6, the control terminal 7 and the switch terminal 8, the power supply terminal 6, the control terminal 7 and the switch terminal 8 are distributed in the same straight line and embedded in the side surface of the second casing 14, a cavity for installing the lower circuit board is arranged in the second casing 14, and four fixing columns are arranged on the lower circuit board, the four fixing posts fix the lower circuit board on the second casing 14, the second casing 14 and the first casing 13 are provided with mutually matched buckles, so that the second casing 14 is detachably connected with the first casing 13, the circuit board is installed in the first casing 13, and the display screen 1, the indicator light 12 and the keys 2 are embedded in the upper end surface of the first casing 13.
As shown in fig. 2, the plugging module 9 includes an insulating compression bar 91, a wiring column 92, a clamping compression column 93, and a spring 94, the wiring column 92 is a cuboid structure with a hollow interior, a sliding cavity is arranged in the wiring column 92, the clamping compression column 93 moving along the inner wall of the sliding cavity is sleeved in the sliding cavity, the lower end surface of the clamping compression column 93 is connected with one end of the spring 94, the other end of the spring 94 abuts against the bottom of the wiring column 92, the upper end surface of the clamping compression column 93 abuts against the lower end surface of the insulating compression bar 91, the insulating compression bar 91 penetrates through the upper end surface of the wiring column 92 and extends out, the insulating compression bar 91, the clamping compression column 93, and the spring 94 are coaxially distributed, column connection holes 95 and clamping compression connection holes 96 are arranged on two same side surfaces of the wiring column 92 and the clamping compression column 93, the clamping compression column 93 moves up and down along the sliding cavity under the pressure of the insulating compression bar 91, so that the chucking connection hole 96 can overlap the column connection hole 95, and the lower end surface of the chucking post 93 is soldered to the lower circuit board.
The invention provides a testing method of an intelligent home switch module testing tool system, which comprises the following steps as shown in figure 3:
s1, connecting a 24V power supply to the power supply terminal 6 and the control terminal 7, connecting the power supply terminal 6 and the control terminal 7 to the control end of the relay to be tested, connecting the switch terminal 8 to the contact of the relay to be tested, and connecting the alternating current terminal to a 220V alternating current power supply;
inserting a lead of a relay to be tested into an inserting module 9 corresponding to a control terminal 7 and a switch terminal 8, pressing an insulating pressure rod 91 to enable a clamping pressure column 93 to move downwards, when an upright post connecting hole 95 is overlapped with a clamping pressure connecting hole 96, inserting the lead of the relay to be tested into the clamping pressure connecting hole 96 through the upright post connecting hole 95, loosening the insulating pressure rod 91, enabling the clamping pressure column 93 to move upwards under the action of a spring 94, and enabling the lead to be abutted against the upright post connecting hole 95;
s2, selecting the type of the relay to be tested through the keys 2, selecting the voltage of the relay to be tested to be 5V, 12V and 24V through the keys 2, starting the test by pressing any key 2 for a long time, charging the capacitor 3 after the direct-current voltage passes through the resistor, sending an instruction to the MCU10 to control the relay 5 to be attracted, forming a loop by the current on the capacitor 3 through the contact of the relay to be tested, controlling the relay 5 to be disconnected after 200MS, discharging through the contact of the relay to be tested due to the fact that the capacitor 3 is fully charged, enabling the instantaneous current to be large, and detecting the impact resistance of the relay to be tested under the load;
calculating the current magnitude of the instantaneous discharge through a current calculation formula, wherein the calculation formula is q = c u, i = q/t, q is the charge quantity, c is the capacitance, u is the voltage, i is the current, and t is the time, the control logic is that 5200MS is taken as the period, 200MS controls the pull-in, the waveform diagram during the pull-in is shown in FIG. 4, and the waveform diagram during the cut-off is shown in FIG. 5;
s3 and the MCU10 sends the set control logic execution signal to the relay, when the MCU10 detects that the attraction time and the control time of the relay to be tested are different by 5 times, the relay to be tested is considered to be damaged, and at the moment, the display screen displays the test time and the total test time of the first adhesion.
The equipment adopts two piece upper and lower circuit boards, it has display screen 1 and button 2 to go up on the circuit board, a relay switch closure number of times for showing to await measuring, the type of the relay that awaits measuring, the voltage of the relay that awaits measuring, button 2 is used for switching the type of the relay that awaits measuring, the voltage of the relay that awaits measuring, and the start-up of the relay test that awaits measuring, in this embodiment, go up line connector 41 and lower line connector 42 and use the FPC seat, MCU10 is responsible for handling the signal of circuit board, control relay 5 is used for switching the power of the relay that awaits measuring and reads the switch number of times of the relay that awaits measuring, electric capacity 3 is used for discharging to the relay that awaits measuring.
The intelligent household switch module testing tool system and the testing method have the advantages that the circuit cost is low, the use is convenient, on one hand, the rectifier bridge converts alternating-current voltage into direct-current voltage required by the system, the direct-current voltage is connected with the capacitor to discharge a relay contact to be tested, the on-off of the relay to be tested is operated by arranging the control relay, so that the limit service life of the switch module can be tested, the service lives of relays of different types used by switch modules of different manufacturers under the same load can be tested, the problem of testing the service lives of relays of the same type and different manufacturers under the same load is solved, meanwhile, the optical coupler disclosed by the invention is characterized in that the first pin of the optical coupler U4 is connected with one end of a seventh resistor R7, the second pin of the optical coupler U4 is connected with one end of a ninth resistor R9, the testing accuracy is improved, and the optical coupler is matched with the seventh resistor, the introduction and the impact of strong voltage are avoided when the system is used, and the safety is improved; on the other hand, the operation of connecting the relay to be tested without tools is realized through the insulating pressure rod, the wiring upright post, the clamping pressure post and the spring, the waiting time for replacing the relay to be tested is greatly shortened, the working efficiency is improved, and meanwhile, the problem that poor contact is easily caused when the relay is fixed through the screw rod is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides an intelligence house switch module test fixture system which characterized in that: the method comprises the following steps:
the MCU (10) is used for processing signals of the upper circuit board and sending instructions to the control relay (5) so as to switch the power supply of the relay to be tested and read the switching times of the relay to be tested;
the display screen (1) is used for displaying the closing times of the relay switch to be tested, the type of the relay to be tested and the voltage of the relay to be tested;
the key (2) is used for switching the type of the relay to be tested, the voltage of the relay to be tested and the test start of the relay to be tested;
the control relay (5) is used for executing an execution instruction sent by the MCU (10) and controlling the connection and disconnection of the relay to be tested;
the rectifier bridge (11) is used for converting alternating voltage into direct voltage to supply power to the system;
the capacitor (3) is connected with the rectifier bridge (11) through a resistor and is charged, and then the contact of the relay to be tested is discharged;
the input detection circuit is connected with the rectifier bridge (11) and the relay to be detected and used for detecting whether the relay to be detected acts or not, and the input detection circuit also comprises a second shell (14) and a first shell (13) matched with the second shell (14);
the display screen (1) and the keys (2) are welded on an upper circuit board, the upper circuit board is provided with an upper row of wire connectors (41), data wires for data transmission with a lower circuit board are spliced on the upper row of wire connectors (41), the lower row of wire connectors (42), a control relay (5), a capacitor (3), a power supply terminal (6), a control terminal (7) for connecting a control port of a relay to be tested, a switch terminal (8) for connecting a relay switch contact and an alternating current terminal connected with the input end of a rectifier bridge (11) are welded on the lower circuit board, at least four splicing modules (9) are arranged in the power supply terminal (6), the control terminal (7) and the switch terminal (8), the power supply terminal (6), the control terminal (7) and the switch terminal (8) are distributed in the same straight line and embedded on the side face of a second shell (14), a cavity for mounting a lower circuit board is arranged in the second shell (14), and four fixing columns are arranged on the lower circuit board and fix the lower circuit board on the second shell (14); a circuit board is arranged in the first shell (13), and the display screen (1), the indicator light (12) and the key (2) are embedded in the upper end face of the first shell (13);
the plug-in module (9) comprises an insulating compression bar (91), a wiring upright post (92), a clamping compression post (93) and a spring (94), wherein the wiring upright post (92) is of a hollow cuboid structure, a sliding cavity is arranged in the wiring upright post, the clamping compression post (93) moving along the inner wall of the sliding cavity is arranged in the sliding cavity, the lower end face of the clamping compression post (93) is connected with one end of the spring (94), the other end of the spring (94) abuts against the bottom of the wiring upright post (92), the upper end face of the clamping compression post (93) abuts against the lower end face of the insulating compression bar (91), and the insulating compression bar (91) penetrates through the upper end face of the wiring upright post (92) and extends out; insulating depression bar (91), card pressure post (93), spring (94) are coaxial distribution, wiring stand (92) with all be provided with stand connecting hole (95) and card pressure connecting hole (96) on two the same sides of card pressure post (93), card pressure post (93) are along sliding chamber up-and-down motion under insulating depression bar's (91) the exerting pressure, make card pressure connecting hole (96) can overlap with stand connecting hole (95), the lower terminal surface welding of card pressure post (93) is on circuit board down.
2. The smart home switch module test tool system according to claim 1, characterized in that: the output end of the rectifier bridge (11) is connected with a power supply terminal (6) arranged on the lower circuit board, and the power supply terminal (6) is used for supplying power to the display screen (1) and the relay to be tested;
the input detection circuit comprises an optical coupler U4, a first pin of the optical coupler U4 is connected with one end of a seventh resistor R7, a second pin of the optical coupler U4 is connected with one end of a ninth resistor R9, and the other ends of the seventh resistor R7 and the ninth resistor R9 are respectively connected with a ninth capacitor C9, a fifteenth capacitor C15 and a tenth resistor R10.
3. The smart home switch module test tool system according to claim 1, characterized in that: the second shell (14) and the first shell (13) are provided with mutually matched buckles, so that the second shell (14) and the first shell (13) are detachably connected.
4. The smart home switch module test tool system according to claim 1, characterized in that: and the lower circuit board is provided with an indicator lamp (12) for displaying the on and off of the relay to be tested.
5. The smart home switch module test tool system according to claim 1, characterized in that: the key (2) is provided with a type selection key and a voltage selection key.
6. The testing method of the intelligent home switch module testing tool system according to any one of claims 1, 2 and 3, characterized in that: the method comprises the following steps:
s1, a 24V power supply is connected to a power supply terminal (6) and a control terminal (7), the power supply terminal (6) and the control terminal (7) are connected with a control end of a relay to be tested, a switch terminal (8) is connected with a contact of the relay to be tested, a lead of the relay to be tested is plugged into a plugging module (9) corresponding to the control terminal (7) and the switch terminal (8), an insulation pressure rod (91) is pressed to enable a clamping pressure column (93) to move downwards, when a column connecting hole (95) and a clamping pressure connecting hole (96) are overlapped, the lead of the relay to be tested penetrates through the column connecting hole (95) to be inserted into the clamping pressure connecting hole (96), the insulation pressure rod (91) is loosened, the clamping pressure column (93) moves upwards under the action of a spring (94), the lead is abutted into the column connecting hole (95), and an alternating current terminal is connected to a 220V alternating current power supply;
s2, selecting the type of the relay through the key (2), selecting the voltage of the relay to be tested to be 5V, 12V and 24V through the key (2), and starting the test by long pressing any key (2);
s3, sending a set control logic execution signal to a control relay (5) through the MCU (10), determining that the relay to be tested is damaged when the MCU (10) detects that the attraction time and the control time of the relay to be tested are different by 5 times, and displaying the test time and the total test time of adhesion on the display screen (1) at the moment.
7. The test method of claim 6, wherein: the control logic conditions are as follows: and (5) controlling pull-in by 200MS with 5200MS as a period.
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