Multi-type multi-path relay performance tester

Abstract

The invention belongs to the field of relay test equipment, and particularly relates to a multi-type multi-path relay performance tester, which comprises a multi-channel test module used for testing multi-path relays at the same time, and each channel is provided with an independent driving circuit and an independent signal acquisition circuit; the multi-type compatible clamp module is used for adapting to relays of different specifications and different types; the programmable driving module is used for providing different test voltages and currents; the signal acquisition module is used for acquiring the action voltage, the release voltage, the current, the contact signal, the response time and the contact resistance of each relay; the central control module is used for executing a test process, analyzing test data and storing the test data and an analysis result; and the man-machine interaction module is used for setting test parameters, displaying real-time data and generating a test report. The relay performance testing efficiency and precision can be remarkably improved, the multi-scene requirements of relay production and quality inspection are met, and good practicability and economic benefits are achieved.

Description

Technical Field

[0001] The invention belongs to the field of relay testing equipment, and in particular relates to a multi-type multi-channel relay performance tester. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirements, it causes a predetermined step change in the controlled quantity in the electrical output circuit. It takes over the interactive relationship between the control system loop (also called the input loop) and the controlled system loop (also called the output loop). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. It plays the role of automatic regulation, safety protection, and circuit conversion in the circuit. It is widely used in remote control, telemetry, communication, automatic control, mechatronics, and power electronic equipment. It is one of the most important control components, and its performance is directly related to the reliability of the system.

[0003] Since the relay plays the role of "automatic switch" in the control circuit, whether the relay works well and whether the switch action is correct is directly related to whether the control action can achieve the control target. If the relay works poorly, it may lead to control failure or wrong control, which may cause quality accidents at the least and major safety accidents at the worst.

[0004] Currently, most relay testing equipment on the market only tests single-type, single-channel relays. This testing method is inefficient and cannot meet the needs of simultaneous testing of multiple types of multi-channel relays, especially during mass production and quality inspection. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-type multi-channel relay performance tester, which can test multiple channels of different types of relays at the same time, greatly improve the test efficiency, and ensure the accuracy and reliability of test data, and has good practicality and economic benefits.

[0006] The technical solution to achieve the purpose of the present invention is:

[0007] A multi-type multi-channel relay performance tester, the tester comprising:

[0008] Multi-channel test module, used to test multiple relays at the same time, each channel is equipped with independent drive circuit and signal acquisition circuit;

[0009] Multi-type compatible fixture modules are used to adapt to relays of different specifications and types;

[0010] Programmable drive module to provide different test voltages and currents;

[0011] Signal acquisition module, used to collect the action voltage, release voltage, current, contact signal, response time and contact resistance of each relay;

[0012] Central control module, used to execute test processes, analyze test data, store test data and analyze results;

[0013] The human-computer interaction module is used to set test parameters, display real-time data, and generate test reports.

[0014] The central control module includes a microprocessor and a storage unit. The microprocessor is used to execute the test process and analyze the test data, and the storage unit is used to store the test data and the analysis results.

[0015] The central control module also includes a test solution database, which has multiple relay test standards built in. Users can choose preset solutions or customize test processes.

[0016] The central control module also includes a data analysis unit, which is used to automatically analyze the relay performance and generate a detailed test report based on the test data.

[0017] The human-computer interaction module includes a touch screen, buttons and an interface.

[0018] The tester also includes a remote monitoring module for implementing real-time monitoring, data transmission and data export during the test process.

[0019] The multi-channel test module supports simultaneous testing of no less than 8 channels, and the test parameters of each channel can be set independently.

[0020] The signal acquisition module has a high-precision sampling function, and the sampling accuracy can reach ±0.1%.

[0021] The tester supports high and low temperature environment testing, and the operating temperature range is -40℃ to +85℃.

[0022] The beneficial technical effects of the present invention are:

[0023] 1. The multi-type multi-channel relay performance tester provided by the present invention is highly efficient: it supports simultaneous testing of multi-channel relays, greatly improving test efficiency.

[0024] 2. The multi-type multi-channel relay performance tester provided by the present invention is flexible: it is compatible with various types of relays and adapts to different testing requirements.

[0025] 3. The multi-type multi-channel relay performance tester provided by the present invention has accuracy: high-precision data collection and analysis to ensure the reliability of test results.

[0026] 4. The multi-type multi-channel relay performance tester provided by the present invention is economical: it reduces the cost of test equipment and labor, and improves the automation level of production testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic block diagram of a multi-type multi-channel relay performance tester provided by the present invention;

[0028] Figure 2 A schematic diagram of a multi-channel test module circuit in a multi-type multi-channel relay performance tester provided by the present invention: Figure 2 a is the circuit diagram of the control chip, Figure 2 b is the circuit diagram of the multi-channel switching redundant measurement module;

[0029] Figure 3 A schematic block diagram of a multi-type compatible fixture module in a multi-type multi-channel relay performance tester provided by the present invention;

[0030] Figure 4 The present invention provides a schematic diagram of the connection between a central control module and multiple types of compatible fixture modules in a multiple types of multi-channel relay performance tester. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 As shown, the present invention provides a multi-type multi-channel relay performance tester, comprising:

[0033] Multi-channel test module: supports simultaneous connection and independent testing of multiple relays. Each channel is equipped with independent signal drive circuit and acquisition circuit, so that each channel can independently configure test parameters.

[0034] Multi-type compatible fixture module: adapt to various specifications and types of relays, and automatically adjust the fixture to adapt to different sizes and pin layouts.

[0035] Programmable drive module: Provides adjustable drive voltage, current and test signal waveform according to different relay requirements.

[0036] Signal acquisition module: real-time collection of key performance data of each relay, including contact signal, action voltage, release voltage, current, response time, contact resistance, etc.

[0037] Central control module: used to execute test processes, analyze test data, store test data and analyze results.

[0038] Human-computer interaction module: used to set test parameters, display real-time data and generate test reports.

[0039] In a specific implementation, the central control module includes a microprocessor and a storage unit. The microprocessor is used to execute the test process and analyze the test data, and the storage unit is used to store the test data and the analysis results.

[0040] In another specific embodiment, the central control module also includes a test solution database, which has multiple relay test standards built in. The user can select a preset solution or customize the test process.

[0041] In another specific embodiment, the central control module further includes a data analysis unit, which is used for the system to automatically analyze the relay performance and generate a detailed test report based on the test data.

[0042] In another specific embodiment, the multi-type compatible fixture module includes a CPU, a GPIO, a switching matrix, a terminal block, and a replaceable relay base, such as Figure 3 shown.

[0043] In another specific embodiment, the multi-type compatible fixture module is connected to the central control module through a bus, which includes: a 24V power supply interface (24V_IN and 24V_GND), a coil drive interface (coil+ and coil-) and a communication interface (485CH4+ and 485CH4-), such as Figure 4 shown.

[0044] In another specific implementation, the human-computer interaction module includes a touch screen, buttons and an interface.

[0045] In another specific embodiment, a multi-type multi-channel relay performance tester provided by the present invention also includes a remote monitoring module, which is connected to the human-computer interaction module through a network to achieve real-time monitoring of the test process and data transmission and data export.

[0046] In another specific implementation, the multi-channel test module supports simultaneous testing of no less than 8 channels, and the test parameters of each channel can be set independently.

[0047] In another specific implementation, the signal acquisition module has a high-precision sampling function, and the sampling accuracy can reach ±0.1%.

[0048] In another specific embodiment, the tester provided by the present invention supports high and low temperature environment testing, and the operating temperature range is -40°C to +85°C.

[0049] The multi-type multi-channel relay performance tester provided by the present invention can realize the following performance tests: coil direct resistance and coil current, action voltage and release voltage, action time and release time, contact resistance, and mechanical life.

[0050] Example 1

[0051] A certain type of tester includes 8 test channels, each of which is equipped with a programmable drive module and a signal acquisition module. The user sets the test parameters of each channel through the touch screen, and the tester automatically tests the connected relays. After the test is completed, the system automatically generates a test report containing data such as the action voltage, release voltage, action time, and contact resistance.

[0052] Example 2

[0053] Used for batch testing of relays in the nuclear power industry. By connecting up to 8 relays at a time, the tester can simultaneously test the key performance of AC220V and DC24V relays, and store the test data in the tester for users to access and analyze at any time via wired or wireless means.

[0054] The present invention is described in detail above with reference to the accompanying drawings and embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. The contents not described in detail in the present invention can adopt the existing technology.

Claims

1. A multi-type multi-channel relay performance tester, characterized in that: The tester comprises: Multi-channel test module, used to test multiple relays at the same time, each channel is equipped with independent drive circuit and signal acquisition circuit; Multi-type compatible fixture modules are used to adapt to relays of different specifications and types; Programmable drive module to provide different test voltages and currents; Signal acquisition module, used to collect the action voltage, release voltage, current, contact signal, response time and contact resistance of each relay; Central control module, used to execute test processes, analyze test data, store test data and analyze results; The human-computer interaction module is used to set test parameters, display real-time data, and generate test reports.

2. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The central control module includes a microprocessor and a storage unit. The microprocessor is used to execute the test process and analyze the test data, and the storage unit is used to store the test data and the analysis results.

3. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The central control module also includes a test solution database, which has multiple relay test standards built in. Users can choose preset solutions or customize test processes.

4. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The central control module also includes a data analysis unit, which is used to automatically analyze the relay performance and generate a detailed test report based on the test data.

5. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The human-computer interaction module includes a touch screen, buttons and an interface.

6. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The tester also includes a remote monitoring module for implementing real-time monitoring, data transmission and data export during the test process.

7. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The multi-channel test module supports simultaneous testing of no less than 8 channels, and the test parameters of each channel can be set independently.

8. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The signal acquisition module has a high-precision sampling function, and the sampling accuracy can reach ±0.1%.

9. A multi-type multi-channel relay performance tester according to claim 1, characterized in that: The tester supports high and low temperature environment testing, and the operating temperature range is -40℃ to +85℃.

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