Electromagnetic relay test system

Abstract

The invention relates to the technical field of electromagnetic relays, and discloses an electromagnetic relay test system, which comprises a data monitoring module, a data storage module, a data analysis processing module, a control adjustment module and an early warning module, and is characterized in that the data monitoring module is used for monitoring temperature data, humidity data, vibration data, contact resistance and coil resistance; a temperature data set, a humidity data set, a vibration data set, a contact resistance set and a coil resistance set are formed, and then a temperature fluctuation value, a humidity fluctuation value, a vibration fluctuation value, a contact resistance fluctuation value and a coil resistance fluctuation value are calculated respectively and then compared with corresponding threshold values; therefore, whether the environmental factors and the equipment factors are abnormal or not is judged respectively, corresponding adjustment and alarm are carried out under the abnormal condition, the performance and reliability of the electromagnetic relay can be evaluated more comprehensively, and it can be ensured that the relay can work stably in various environments in practical application.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic relays, and in particular to an electromagnetic relay testing system. Background Art

[0002] Electromagnetic relay is a common electrical control device, widely used in automation control systems, power systems, communication equipment and other fields. It realizes the switching control of the circuit through the principle of electromagnetic induction. It has the advantages of simple structure, high reliability and easy use. The main working principle of electromagnetic relay is to use the principle of electromagnetic induction to generate a magnetic field by controlling the current in the coil to magnetize the iron core, thereby attracting or releasing the contacts to realize the switching control of the circuit. Specifically, when a certain current is passed through the coil, the magnetic field generated will magnetize the iron core. At this time, the contacts on the iron core will contact the fixed contacts to close the circuit. When the current in the coil disappears or decreases to a certain level, the magnetic field weakens, the iron core is demagnetized, the contacts are separated, and the circuit is disconnected. By changing the current size and direction in the coil, precise control of the contacts can be achieved.

[0003] The electromagnetic relay test system is an automated test device used to detect and evaluate the performance of electromagnetic relays. It simulates actual working conditions and accurately measures various parameters of electromagnetic relays to ensure their quality and reliability.

[0004] The electromagnetic coil and contacts inside the electromagnetic relay will age with the increase of usage time. The electromagnetic coil may have problems such as insulation aging and wire breakage, while the contacts may be worn due to friction and arcing, which will affect the test results and cause equipment damage. At the same time, not only the electromagnetic relay equipment, but also the environment is an important factor that affects the results of the electromagnetic relay test system. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an electromagnetic relay testing system, which can more comprehensively evaluate the performance and reliability of the electromagnetic relay, helping to ensure that the relay can work stably in various environments in actual applications. At the same time, it can predict potential failure points, thereby taking preventive measures and reducing the failure rate in actual operation, thereby solving the above problems.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions: an electromagnetic relay testing system, comprising a data monitoring module, a data storage module, a data analysis and processing module, a control and regulation module and an early warning and alarm module;

[0009] The data monitoring module includes an environment monitoring unit and an equipment monitoring unit. The environment monitoring unit includes a temperature monitoring unit, a humidity monitoring unit and a vibration data monitoring unit. The temperature monitoring unit monitors the temperature data WD by connecting to a temperature sensor, the humidity monitoring unit monitors the humidity data SD by connecting to a humidity sensor, and the vibration data monitoring unit monitors the vibration data ZD by connecting to a vibration sensor. The environment monitoring unit sends the monitored environment data to the data storage module for storage;

[0010] The equipment monitoring unit includes a contact resistance monitoring unit and a coil resistance monitoring unit. The contact resistance monitoring unit monitors the contact resistance CDdz by connecting to a multimeter, and the coil resistance monitoring unit monitors the coil resistance XQyz by connecting to a multimeter. The equipment monitoring unit sends the monitored equipment data to the data storage module for storage;

[0011] The data storage module forms a temperature data set, a humidity data set, a vibration data set, a contact resistance set, and a coil resistance set with the temperature data WD, the humidity data SD, the vibration data ZD, and the contact resistance and coil resistance, and saves the data and sends the data to the data analysis and processing module;

[0012] The data analysis and processing module includes an environment analysis and processing unit and an equipment analysis and processing unit. The environment analysis and processing unit is preset with a temperature fluctuation threshold WDyz, a humidity fluctuation threshold SDyz, and a vibration fluctuation threshold ZDyz. The temperature fluctuation value WDbd, the humidity fluctuation value SDbd, and the vibration fluctuation value ZDbd are respectively calculated according to the temperature data set, the humidity data set, and the vibration data set, and compared with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the control and regulation module or the early warning and alarm module;

[0013] The device analysis and processing unit is preset with a contact resistance threshold CDyz and a coil resistance threshold XQyz, and calculates the contact resistance fluctuation value CDbd and the coil resistance fluctuation value XQbd according to the contact resistance set and the coil resistance set, respectively, and compares them with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the early warning module.

[0014] Preferably, the expression of the temperature data set is {WD1, WD2, WD3, . . . , WD n}, the expression of the humidity data set is {SD1, SD2, SD3, . . . , SD n}, the expression of the vibration data set is {ZD1, ZD2, ZD3, . . . , ZD n}, where WD1, SD1, and ZD1 represent the first data in the temperature data set, humidity data set, and vibration data set, respectively. n , SD n , ZD n They represent the last data in the temperature data set, humidity data set, and vibration data set respectively, and n represents the total number of data in the data set.

[0015] Preferably, the expression of the contact resistance set is {CDdz1, CDdz2, CDdz3, . . . , CDdz n}, the expression of the coil resistance set is {XQdz1, XQdz2, XQdz3, . . . , XQdz n}, where CDdz1 and XQdz1 represent the first data in the contact resistance set and coil resistance set respectively, CDdz n 、XQ n They represent the last data in the contact resistance set and the coil resistance set respectively, and n represents the total number of data in the data set.

[0016] Preferably, the temperature fluctuation value WDbd is calculated as follows:

[0017]

[0018] In the above formula, WD i Represents any data in the temperature data set, and i>4, |WD i -WD i-4 |+|WD i-4 -WD i-3 |+、、、+|WD i-2 -WD i-1 | represents any WD in the temperature data set i The total value of temperature fluctuation between the previous 5 temperature data. 5 represents 5 temperature data as a group.

[0019] Preferably, the humidity fluctuation value SDbd is calculated as follows:

[0020]

[0021] In the above formula, SD i Represents any data in the humidity data set, and i>4, |SD i -SD i-4 |+|SD i-4 -SD i-3 |+、、、+|SD i-2 -SD i-1 | represents any SD in the humidity data set iThe total value of humidity fluctuation between the previous 5 humidity data. 5 represents 5 humidity data as a group.

[0022] Preferably, the vibration fluctuation value ZDbd is calculated as follows:

[0023]

[0024] In the above formula, ZD i represents any data in the vibration data set, and i>4, |ZD i -ZD i-4 |+|ZD i-4 -ZD i-3 |+、、、+|ZD i-2 -ZD i-1 | represents any ZD in the vibration data set i The total value of vibration fluctuations between the previous 5 vibration data. 5 represents 5 vibration data as a group.

[0025] Preferably, the contact resistance fluctuation value CDbd is calculated as follows:

[0026]

[0027] In the above formula, i=2 in the table means that the calculation starts from the second contact resistance of the contact resistance set, that is, CDdz2. i -CDdz i-1 | indicates CDdz i The absolute difference from the previous value.

[0028] Preferably, the calculation formula of the coil resistance fluctuation value XQbd is as follows:

[0029]

[0030] In the above formula, i=2 in the figure means that the calculation starts from the second coil resistance in the coil resistance set, that is, XQdz2. i -XQ i-1 | indicates XQdz i The absolute difference from the previous value.

[0031] Preferably, when the temperature fluctuation value WDbd is greater than the temperature fluctuation threshold WDyz, a signal is sent to the control and regulation module, and the control and regulation module controls sending a cooling signal to the temperature controller for cooling; when the humidity fluctuation value SDbd is greater than the humidity fluctuation threshold SDyz, a signal is sent to the control and regulation module, and the control and regulation module controls sending a dehumidification signal to the humidity controller for dehumidification; when the vibration fluctuation value ZDbd is greater than the vibration fluctuation threshold ZDyz, an abnormal vibration signal is sent to the early warning module for warning.

[0032] Preferably, when the contact resistance fluctuation value CDbd is greater than the contact resistance threshold CDyz, the contact abnormality signal is sent to the early warning module for warning; when the coil resistance fluctuation value XQbd is greater than the coil resistance threshold XQyz, the coil abnormality signal is sent to the early warning module for warning.

[0033] Compared with the prior art, the present invention provides an electromagnetic relay testing system, which has the following beneficial effects:

[0034] 1. The present invention combines the temperature data set, the humidity data set, and the vibration data set, and respectively calculates the temperature fluctuation value WDbd, the humidity fluctuation value SDbd, and the vibration fluctuation value ZDbd and compares them with the corresponding thresholds to determine whether an abnormal signal occurs, and fully considers the impact of temperature, humidity, and vibration on the electromagnetic relay test system when an abnormality occurs, so that the performance and reliability of the electromagnetic relay can be more comprehensively evaluated, which helps to ensure that in actual applications, the relay can work stably in various environments. At the same time, potential fault points can be predicted, so that preventive measures can be taken to reduce the failure rate in actual operation.

[0035] 2. The present invention calculates the contact resistance fluctuation value CDbd and the coil resistance fluctuation value XQbd by combining the contact resistance set and the coil resistance set, respectively, and compares them with the corresponding thresholds to determine whether an abnormal signal occurs. This can more accurately evaluate the working status and performance of the relay, timely discover potential fault risks, and take preventive measures to avoid the occurrence of faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structural system of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 , an electromagnetic relay testing system, including a data monitoring module, a data storage module, a data analysis and processing module, a control and regulation module and an early warning and alarm module;

[0039] The data monitoring module includes an environment monitoring unit and an equipment monitoring unit. The environment monitoring unit includes a temperature monitoring unit, a humidity monitoring unit and a vibration data monitoring unit. The temperature monitoring unit monitors the temperature data WD by connecting to a temperature sensor, the humidity monitoring unit monitors the humidity data SD by connecting to a humidity sensor, and the vibration data monitoring unit monitors the vibration data ZD by connecting to a vibration sensor. The environment monitoring unit sends the monitored environment data to the data storage module for storage;

[0040] The equipment monitoring unit includes a contact resistance monitoring unit and a coil resistance monitoring unit. The contact resistance monitoring unit monitors the contact resistance CDdz by connecting to a multimeter, and the coil resistance monitoring unit monitors the coil resistance XQdz by connecting to a multimeter. The equipment monitoring unit sends the monitored equipment data to the data storage module for storage;

[0041] The data storage module saves the temperature data WD, humidity data SD, vibration data ZD, contact resistance, and coil resistance into a temperature data set, a humidity data set, a vibration data set, a contact resistance set, and a coil resistance set, and sends them to the data analysis and processing module;

[0042] The expression of the temperature data set is {WD1, WD2, WD3, ···, WD n}, the expression of humidity data set is {SD1, SD2, SD3, ···, SD n}, the expression of the vibration data set is {ZD1, ZD2, ZD3, ···, ZD n}, where WD1, SD1, and ZD1 represent the first data in the temperature data set, humidity data set, and vibration data set, respectively. n , SD n , ZD n They represent the last data in the temperature data set, humidity data set, and vibration data set respectively, and n represents the total number of data in the data set;

[0043] The expression of the contact resistance set is {CDdz1, CDdz2, CDdz3, ···, CDdz n}, the expression of the coil resistance set is {XQdz1, XQdz2, XQdz3, ···, XQdz n}, where CDdz1 and XQdz1 represent the first data in the contact resistance set and coil resistance set respectively, CDdz n 、XQn They represent the last data in the contact resistance set and coil resistance set respectively, and n represents the total number of data in the data set;

[0044] The data analysis and processing module includes an environment analysis and processing unit and an equipment analysis and processing unit. The environment analysis and processing unit is preset with a temperature fluctuation threshold WDyz, a humidity fluctuation threshold SDyz, and a vibration fluctuation threshold ZDyz. The temperature fluctuation value WDbd, the humidity fluctuation value SDbd, and the vibration fluctuation value ZDbd are respectively calculated according to the temperature data set, the humidity data set, and the vibration data set, and compared with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the control and regulation module or the early warning and alarm module;

[0045] The temperature fluctuation value WDbd is calculated as follows:

[0046]

[0047] In the above formula, WD i Represents any data in the temperature data set, and i>4, |WD i -WD i-4 |+|WD i-4 -WD i-3 |+、、、+|WD i-2 -WD i-1 | represents any WD in the temperature data set i The total value of the temperature fluctuation between the previous 5 temperature data, 5 represents 5 temperature data as a group;

[0048] The calculation method of humidity fluctuation value SDbd is as follows:

[0049]

[0050] In the above formula, SD i Represents any data in the humidity data set, and i>4, |SD i -SD i-4 |+|SD i-4 -SD i-3 |+、、、+|SD i-2 -SD i-1 | represents any SD in the humidity data set i The total value of humidity fluctuation between the previous 5 humidity data, 5 represents 5 humidity data as a group;

[0051] The vibration fluctuation value Zdbd is calculated as follows:

[0052]

[0053] In the above formula, ZD irepresents any data in the vibration data set, and i>4, |ZD i -ZD i-4 |+|DZ i-4 -DZ i-3 |+、、、+|DZ i-2 -ZD i-1 | represents any ZD in the vibration data set i The total value of vibration fluctuation between the previous 5 vibration data, 5 represents 5 vibration data as a group;

[0054] When the temperature fluctuation value WDbd is greater than the temperature fluctuation threshold WDyz, a signal is sent to the control and regulation module, and the control and regulation module controls the sending of a cooling signal to the temperature controller for cooling. When the humidity fluctuation value SDbd is greater than the humidity fluctuation threshold SDyz, a signal is sent to the control and regulation module, and the control and regulation module controls the sending of a dehumidification signal to the humidity controller for dehumidification. When the vibration fluctuation value ZDbd is greater than the vibration fluctuation threshold ZDyz, a vibration abnormality signal is sent to the early warning module for warning.

[0055] By combining the temperature data set, humidity data set, and vibration data set and calculating the temperature fluctuation value WDbd, humidity fluctuation value SDbd, and vibration fluctuation value ZDbd respectively and comparing them with the corresponding thresholds, it is determined whether an abnormal signal occurs, and the impact of temperature, humidity, and vibration on the electromagnetic relay test system when an abnormality occurs is fully considered, so that the performance and reliability of the electromagnetic relay can be more comprehensively evaluated, which helps to ensure that in actual applications, the relay can work stably in various environments. At the same time, potential fault points can be predicted, so that preventive measures can be taken to reduce the failure rate in actual operation.

[0056] The equipment analysis and processing unit is preset with a contact resistance threshold CDyz and a coil resistance threshold XQyz, and calculates the contact resistance fluctuation value CDbd and the coil resistance fluctuation value XQbd according to the contact resistance set and the coil resistance set, respectively, and compares them with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the early warning module;

[0057] The calculation method of contact resistance fluctuation value CDbd is as follows:

[0058]

[0059] In the above formula, i=2 in the table means that the calculation starts from the second contact resistance of the contact resistance set, that is, CDdz2. i -CDdz i-1 | indicates CDdz i The absolute difference from the previous data;

[0060] The calculation formula of coil resistance fluctuation value XQbd is as follows:

[0061]

[0062] In the above formula, i=2 in the figure means that the calculation starts from the second coil resistance in the coil resistance set, that is, XQdz2. i -XQ i-1 | indicates XQdz i The absolute difference from the previous data;

[0063] When the contact resistance fluctuation value CDbd is greater than the contact resistance threshold CDyz, the contact abnormality signal is sent to the early warning module for warning; when the coil resistance fluctuation value XQbd is greater than the coil resistance threshold XQyz, the coil abnormality signal is sent to the early warning module for warning;

[0064] By combining the contact resistance set and the coil resistance set to calculate the contact resistance fluctuation value CDbd and the coil resistance fluctuation value XQbd respectively and comparing them with the corresponding thresholds, it can be determined whether an abnormal signal occurs. This can more accurately evaluate the working status and performance of the relay, timely discover potential fault risks, and take preventive measures to avoid the occurrence of faults.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic relay testing system, characterized in that: It includes data monitoring module, data storage module, data analysis and processing module, control and regulation module and early warning module; The data monitoring module includes an environment monitoring unit and an equipment monitoring unit. The environment monitoring unit includes a temperature monitoring unit, a humidity monitoring unit and a vibration data monitoring unit. The temperature monitoring unit monitors the temperature data WD by connecting to a temperature sensor, the humidity monitoring unit monitors the humidity data SD by connecting to a humidity sensor, and the vibration data monitoring unit monitors the vibration data ZD by connecting to a vibration sensor. The environment monitoring unit sends the monitored environment data to the data storage module for storage; The device monitoring unit includes a contact resistance monitoring unit and a coil resistance monitoring unit. The contact resistance monitoring unit monitors the contact resistance CDdz by connecting to a multimeter, and the coil resistance monitoring unit monitors the coil resistance XQdz by connecting to a multimeter. The device monitoring unit sends the monitored device data to the data storage module for storage; The data storage module forms a temperature data set, a humidity data set, a vibration data set, a contact resistance set, and a coil resistance set with the temperature data WD, the humidity data SD, the vibration data ZD, and the contact resistance and coil resistance, and saves the data and sends the data to the data analysis and processing module; The data analysis and processing module includes an environment analysis and processing unit and an equipment analysis and processing unit. The environment analysis and processing unit is preset with a temperature fluctuation threshold WDyz, a humidity fluctuation threshold SDyz, and a vibration fluctuation threshold ZDyz. The temperature fluctuation value WDbd, the humidity fluctuation value Sdbd, and the vibration fluctuation value Zdbd are respectively calculated according to the temperature data set, the humidity data set, and the vibration data set, and compared with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the control and regulation module or the early warning and alarm module; The device analysis and processing unit is preset with a contact resistance threshold CDyz and a coil resistance threshold XQyz, and calculates the contact resistance fluctuation value CDbd and the coil resistance fluctuation value XQbd according to the contact resistance set and the coil resistance set, respectively, and compares them with the corresponding thresholds to determine whether an abnormal signal occurs. When an abnormality occurs, the abnormal signal is sent to the early warning module.

2. An electromagnetic relay testing system according to claim 1, characterized in that: The expression of the temperature data set is {WD1, WD2, WD3, . . . , WD n }, the expression of the humidity data set is {SD1, SD2, SD3, . . . , SD n }, the expression of the vibration data set is {ZD1, ZD2, ZD3, . . . , ZD n }, where WD1, SD1, and ZD1 represent the first data in the temperature data set, humidity data set, and vibration data set, respectively. n , SD n , ZD n They represent the last data in the temperature data set, humidity data set, and vibration data set respectively, and n represents the total number of data in the data set.

3. An electromagnetic relay testing system according to claim 2, characterized in that: The expression of the contact resistance set is {CDdz1, CDdz2, CDdz3, . . . , CDdz n }, the expression of the coil resistance set is {XQdz1, XQdz2, XQdz3, . . . , XQdz n }, where CDdz1 and XQdz1 represent the first data in the contact resistance set and coil resistance set respectively, CDdz n ,XQdz n They represent the last data in the contact resistance set and the coil resistance set respectively, and n represents the total number of data in the data set.

4. An electromagnetic relay testing system according to claim 3, characterized in that: The temperature fluctuation value WDbd is calculated as follows: In the above formula, WD i Represents any data in the temperature data set, and i>4, |WD i -WD i-4 |+|WD i-4 -WD i-3 |+、、、+|WD i-2 -WD i-1 | represents any WD in the temperature data set i The total value of temperature fluctuation between the previous 5 temperature data. 5 represents 5 temperature data as a group.

5. An electromagnetic relay testing system according to claim 4, characterized in that: The calculation method of the humidity fluctuation value SDbd is as follows: In the above formula, SD i Represents any data in the humidity data set, and i>4, |SD i -SD i-4 |+|SD i-4 -SD i-3 |+、、、+|SD i-2 -SD i-1 | represents any SD in the humidity data set i The total value of humidity fluctuation between the previous 5 humidity data. 5 represents 5 humidity data as a group.

6. An electromagnetic relay testing system according to claim 5, characterized in that: The vibration fluctuation value ZDbd is calculated as follows: In the above formula, ZDi represents any data in the vibration data set, and i>4, |ZD i -ZD i-4 |+|ZD i-4 -ZD i-3 |+、、、+|ZD i-2 -ZD i-1 | represents any ZD in the vibration data set i The total value of vibration fluctuations between the previous 5 vibration data. 5 represents 5 vibration data as a group.

7. An electromagnetic relay testing system according to claim 6, characterized in that: The contact resistance fluctuation value CDbd is calculated as follows: In the above formula, i=2 in the table means that the calculation starts from the second contact resistance of the contact resistance set, that is, CDdz2. i -CDdz i-1 | indicates CDdz i The absolute difference from the previous value.

8. An electromagnetic relay testing system according to claim 7, characterized in that: The calculation formula of the coil resistance fluctuation value XQbd is as follows: In the above formula, i=2 in the figure means that the calculation starts from the second coil resistance in the coil resistance set, that is, XQdz2. i -XQ i-1 | indicates XQdz i The absolute difference from the previous value.

9. An electromagnetic relay testing system according to claim 8, characterized in that: When the temperature fluctuation value WDbd is greater than the temperature fluctuation threshold WDyz, a signal is sent to the control and regulation module, and the control and regulation module controls the sending of a cooling signal to the temperature controller for cooling. When the humidity fluctuation value SDbd is greater than the humidity fluctuation threshold SDyz, a signal is sent to the control and regulation module, and the control and regulation module controls the sending of a dehumidification signal to the humidity controller for dehumidification. When the vibration fluctuation value ZDbd is greater than the vibration fluctuation threshold ZDyz, an abnormal vibration signal is sent to the early warning module for warning.

10. An electromagnetic relay testing system according to claim 9, characterized in that: When the contact resistance fluctuation value CDbd is greater than the contact resistance threshold CDyz, the contact abnormality signal is sent to the early warning module for warning; when the coil resistance fluctuation value XQbd is greater than the coil resistance threshold XDyz, the coil abnormality signal is sent to the early warning module for warning.

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