CN113866629A

CN113866629A - Relay performance and durability combined test platform

Info

Publication number: CN113866629A
Application number: CN202111403288.3A
Authority: CN
Inventors: 陈为民; 黄鹤; 邱新兴; 胡文松; 范云; 陶林; 蒋亮亮
Original assignee: Hefei Bangli Electronic Co ltd
Current assignee: Hefei Bangli Electronic Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2021-12-31

Abstract

The invention discloses a relay performance and durability comprehensive test bed which comprises a rack, wherein a test host, a relay fixing tool, a relay coil power supply, various loads, a load power supply and a display are arranged on the rack, the test host is used for storing test parameters and control time sequences and controlling the test to be carried out by sending instructions, the relay fixing tool is used for fixing a tested relay, the relay coil power supply is used for providing energy for coil excitation of the tested relay, the various loads are used for providing different load conditions for simulation of the tested relay, the load power supply is used for providing required voltage and current for the various loads, and the display is used for displaying test results. The test bed is controlled by a computer, so that the operation is simple and the visibility is strong; open parameter settings are provided, which is convenient for adapting to various products; four load modes are adopted; the electronic load, the resistance load, the bulb load and the inductive load can comprehensively check the product; realize multichannel simultaneous detection, be convenient for detect in batches, it is efficient.

Description

Relay performance and durability combined test platform

Technical Field

The invention relates to the technical field of relay testing, in particular to a comprehensive test bed for the performance and durability of a relay.

Background

Relays are widely used in various control systems and loops, and some relays are used in safety or economic important system loops, and the reliability of the relays affects the safety or economic performance of the whole system or loop. The performance test and the durability test of the relay are always important fields of research in the electrical academia at home and abroad. However, the relay testing device on the market at present cannot realize mass tests in a multi-load mode, is complex in operation and low in testing efficiency, and cannot perform comprehensive examination on the relay.

Disclosure of Invention

The invention aims to provide a comprehensive test bed for the performance and durability of a relay, which overcomes the defects that the conventional relay test bed cannot realize large-batch tests in a multi-load mode, is complex to operate, cannot realize comprehensive examination and the like.

The invention realizes the purpose through the following technical scheme:

the utility model provides a relay performance and durability combined test platform, includes the rack, be equipped with experimental host computer on the rack to and the fixed frock of relay, relay coil power, polymorphic type load, load power and the display of being connected with experimental host computer electricity, wherein, experimental host computer is used for storing experimental parameter and control timing to through the experimental process of sending out instruction control, the fixed frock of relay is used for the fixed relay of being surveyed, relay coil power is used for providing the energy for the coil excitation of being surveyed the relay, polymorphic type load is used for providing different load conditions for being surveyed the relay simulation, load power provides required voltage and electric current for polymorphic type load, the display is used for showing the test result.

In a further refinement, the multiple types of loads include electronic loads, resistive loads, light bulb loads, and inductive loads.

The further improvement is that the adjustment range of the electronic load is 0-200A, the current display range is 0-200A, and the display resolution is 0.1A.

The further improvement is that the adjusting range of the resistance load is 0.06-0.6 omega, and the total power is 2400W.

The further improvement is that the total power of the bulb load is 2400W (12V)/2400W (24V).

The further improvement is that the maximum current of the inductive load is 100A, and the maximum inductance is 40 mH.

The rack is further improved in that the rack is divided into a plurality of layers, different loads in the multiple types of loads are installed in different layers of grids of the rack, and a cooling fan is arranged on the side of each layer of grid.

The further improvement is that a power switch is also arranged on the rack.

The further improvement lies in that the bottom end of the rack is provided with supporting legs and universal wheels.

The invention has the beneficial effects that: the computer control is adopted, the operation is simple, and the visibility is strong; open parameter settings are provided, which is convenient for adapting to various products; four load modes are adopted; the electronic load, the resistance load, the bulb load and the inductive load can comprehensively check the product; the test board realizes automatic test of the electrical performance and the durability of the relay; realize multichannel simultaneous detection, be convenient for detect in batches, it is efficient.

The product is suitable for performance detection and durability test of various relays. The method is widely applied to detection, test verification and the like of relays in the fields of automobiles, electronics, petroleum, chemical industry, household appliances, medical health, electric power and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the circuit of the present invention;

FIG. 3 is a system operating interface diagram of the present invention;

in the figure: 1. a rack; 2. a test host; 3. fixing a tooling for the relay; 4. a relay coil power supply; 5. a load power supply; 6. a display; 7. an electronic load; 8. a resistive load; 9. a light bulb load; 10. an inductive load; 11. a heat radiation fan; 12. and a power switch.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1 and fig. 2, a relay performance and durability combined test bed comprises a rack 1, wherein a test host 2 is arranged on the rack 1, and a relay fixing tool 3, a relay coil power supply 4, multiple types of loads, a load power supply 5 and a display 6 are electrically connected with the test host 2, wherein the test host 2 is used for storing test parameters and control timing sequences and controlling the test by sending instructions, the relay fixing tool 3 is used for fixing a tested relay, the relay coil power supply 4 is used for providing energy for coil excitation of the tested relay, the multiple types of loads are used for providing different load conditions for simulation of the tested relay, the load power supply 5 provides required voltage and current for the multiple types of loads, and the display 6 is used for displaying test results.

Wherein the multiple types of loads include an electronic load 7, a resistive load 8, a light bulb load 9, and an inductive load 10. The adjustment range of the electronic load 7 is 0-200A, the current display range is 0-200A, and the display resolution is 0.1A. The adjusting range of the resistance load 8 is 0.06-0.6 omega, and the total power is 2400W. The total power of the bulb load 9 is 2400W (12V)/2400W (24V). The maximum current of the inductive load 10 is 100A, and the maximum inductance is 40 mH.

In the invention, the rack 1 is divided into a plurality of layers, different loads in the multi-type loads are arranged in different layers of the rack 1, and a cooling fan 11 is arranged on the side of each layer of the rack for cooling. The rack 1 is also provided with a power switch 12 which comprises a main switch, a coil power switch, a load power switch and the like.

In the invention, the bottom end of the rack 1 is provided with supporting legs and universal wheels, so that the rack is convenient to move.

The technical parameters of the invention are as follows:

the working environment is as follows: temperature: 0-50 degrees; relative humidity: < 70% RH;

a working power supply: AC 220V;

contact voltage drop detection interface: 3 paths (series connection) in total;

contact voltage drop detection accuracy: ± 5mV, range: 20 ~ 4990mV, can set for every detection contact's inefficacy pressure drop, the settlement scope: 20-4990 mV;

test voltage adjustment range: 0-50V; voltage display range: 0-50V, and the display resolution is 0.1V.

The operation process of the invention is as follows:

(1) turning on a main switch of a working power supply in the computer to start the computer;

(2) fixing a relay to be tested in the relay fixing tool 3, connecting the circuit according to a correct method, and then opening a relay coil power supply;

(3) the program is opened and the operation interface (see fig. 3) is entered. Click operation

Inputting a manufacturer, a model and a test item of a relay to be tested, selecting a corresponding load type and a relay type, setting a corresponding current or inductance value, and clicking an 'execution' button to confirm set parameters;

(4) after the setting is finished, a 'test on-off' button can be clicked to judge the line connection state. After the circuit is confirmed to be normally set, a load power switch is turned on, and a voltage regulation knob and a current regulation knob are regulated to set values. Parameters such as 'set times', 'power-on time', 'power-off time', 'voltage drop limit', 'solenoid current limit', 'allowable overrun times' and the like can be set according to technical parameters, and after the parameters are set, the 'start' operation is clicked, and the test starts to count in a timing manner;

(5) the measured data can be observed in real time in the running process, if the measured data exceeds the set limit times, the 'silence' is clicked to turn off the alarm, and then a circuit is checked to determine whether the connection problem or the relay problem exists;

(6) after the test is finished, clicking to quit, rotating the voltage regulation knob and the current regulation knob to the minimum position, closing the load power switch and the relay coil power switch, and taking down the tested piece.

In the implementation process, the control software of the laboratory bench adopts a Windows XP system, the stability of the system is ensured, meanwhile, the adopted Windows operation interface and the program provide strong self-defined programming functions, the testing requirements of users on different products can be met, the software is easy to learn and use, and in addition, a good man-machine conversation interface is adopted, so that the parameter setting and the product model expansion are very convenient.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A comprehensive test stand for relay performance and durability, comprising a stand (1), characterized in that the stand (1) is provided with a test host (2), and a test host (2) is electrically connected to the test host (2). A relay fixing tool (3), a relay coil power supply (4), a multi-type load, a load power supply (5) and a display (6), wherein the test host (2) is used to store test parameters and control sequences, and send out The instruction controls the execution of the test, the relay fixing tool (3) is used for fixing the relay under test, the relay coil power supply (4) is used for providing energy for the coil excitation of the relay under test, and the multi-type loads are used for providing energy for the coil excitation of the tested relay. The test relay simulates and provides different load conditions, the load power supply (5) provides the required voltage and current for multiple types of loads, and the display (6) is used to display the test results.

2. A relay performance and durability comprehensive test bench according to claim 1, wherein the multi-type loads include electronic loads (7), resistive loads (8), bulb loads (9) and inductive loads (10).

3. A relay performance and durability comprehensive test bench according to claim 2, characterized in that, the adjustment range of the electronic load (7) is 0-200A, the current display range is 0-200A, and the display resolution is 0-200A. is 0.1A.

4. A relay performance and durability comprehensive test bench according to claim 2, characterized in that the adjustment range of the resistance load (8) is 0.06-0.6Ω, and the total power is 2400W.

5 . The comprehensive test bench for relay performance and durability according to claim 2 , wherein the total power of the bulb load ( 9 ) is 2400W (12V)/2400W (24V). 6 .

6. A relay performance and durability comprehensive test bench according to claim 2, characterized in that the maximum current of the inductive load (10) is 100A, and the maximum inductance is 40mH.

7. A relay performance and durability comprehensive test bench according to claim 2, wherein the bench (1) is divided into a plurality of layers, and different loads in the multi-type loads are installed on the bench In different layers of (1), cooling fans (11) are arranged on the sides of each layer.

8. A relay performance and durability comprehensive test bench according to claim 1, characterized in that, a power switch (12) is further provided on the bench (1).

9 . The comprehensive test bench for relay performance and durability according to claim 1 , wherein the bottom end of the bench ( 1 ) is provided with support feet and universal wheels. 10 .