Rail transit power supply product performance testing device

Abstract

The utility model provides a performance testing device for a rail transit power supply product. The performance testing device comprises a shell; a programmable logic controller (PLC) is arranged in the shell; a touch screen, an ampere meter, a voltmeter, keys and a to-be-tested power supply mounting position are arranged on the surface of the shell; a to-be-tested power supply is arranged in the to-be-tested power supply mounting position; the PLC is connected with a power supply to be tested through an RS485 interface and is used for controlling an output voltage value and an output current value of the power supply to be tested; the voltmeter is connected with the output end of the power supply to be tested and is used for measuring the output voltage value of the power supply to be tested and sending the collected output voltage value to the PLC. The utility model discloses a rail transit power supply product performance testing device, which can be applied to testing power supply products of different models, and has the characteristics of wide application range, convenience in operation and particularly suitability for testing the performance of a large batch of power supply products.

Description

Technical Field

[0001] The utility model belongs to the field of urban rail transit, and in particular relates to a performance testing device for a rail transit power supply product. Background Art

[0002] In the field of urban rail transit, various types of power supplies are widely used in various rail transit equipment. Therefore, the performance and reliability of power supply products play an important role in the normal operation of rail transit. How to perform performance tests with different requirements on power supply products of different specifications has become an important task in the daily maintenance of rail transit. Under existing technical conditions, the testing of power supply products generally requires the design of a test tool specifically for a model of power supply, and there are problems such as low automation, complex operation and low efficiency of batch testing during the power supply performance testing process. Utility Model Content

[0003] In view of this, the utility model aims to overcome the defects in the prior art and proposes a performance testing device for a rail transit power supply product.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A rail transit power product performance test device comprises a shell; a programmable controller PLC is arranged in the shell; a touch screen, an ammeter, a voltmeter, a button and a power supply installation position to be tested are arranged on the surface of the shell; the power supply to be tested is arranged in the power supply installation position to be tested; the programmable controller PLC is connected to the power supply to be tested through an RS485 interface, and is used to control the output voltage value and the output current value of the power supply to be tested; the voltmeter is connected to the output end of the power supply to be tested, and is used to measure the output voltage value of the power supply to be tested and send the collected output voltage value to the programmable controller PLC; the ammeter is connected to the output end of the power supply to be tested after being connected in series with a load, and is used to measure the output current value of the power supply to be tested and send the collected output current value to the programmable controller PLC; the touch screen is connected to the programmable controller PLC through the RS485 interface, and is used to display the collected output voltage value and output current value; the button is connected to the input end of the programmable controller PLC, and is used to set the output value of the power supply to be tested.

[0006] Furthermore, the external power supply is connected to the power supply input terminal, and the power supply output terminal is respectively connected to the touch screen power supply terminal, the ammeter power supply terminal, the voltmeter power supply terminal, the power supply terminal of the power supply to be tested and the programmable controller PLC power supply terminal.

[0007] Furthermore, a main switch is provided between the external power supply and the power supply input terminal.

[0008] Furthermore, the main switch is arranged on the surface of the housing.

[0009] Furthermore, the installation position of the power supply to be tested is in the shape of a rectangular groove.

[0010] Furthermore, there are multiple buttons, and the multiple buttons are used to set different output values ​​of the power supply to be tested.

[0011] Furthermore, the touch screen and the buttons are arranged adjacent to each other.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] First, the utility model discloses a rail transit power supply product performance testing device, which can be applied to test power supply products of different models, has the characteristics of wide application range, convenient operation and is particularly suitable for performance testing of large quantities of power supply products.

[0014] Secondly, the utility model discloses a rail transit power supply product performance testing device, which can test different working conditions of the power supply product during the testing process of the power supply product, and has the characteristics of convenient operation and sufficient testing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0016] Figure 1 This is a first structural schematic diagram of a rail transit power supply product performance testing device according to an embodiment of the utility model;

[0017] Figure 2 This is a second structural schematic diagram of a rail transit power supply product performance testing device according to an embodiment of the utility model;

[0018] Figure 3 This is a circuit connection diagram of a rail transit power supply product performance test device according to an embodiment of the utility model;

[0019] Figure 4 This is a data collection schematic diagram of a rail transit power supply product performance test device according to an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of power supply for a rail transit power supply product performance testing device according to an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1-housing; 2-touch screen; 3-ammeter; 4-voltmeter; 5-main switch; 6-button; 7-installation position of power supply to be tested; 8-programmable controller PLC; 9-power supply to be tested; 10-load; 11-power supply. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] In the description of the present utility model, it should be further explained that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] Embodiment 1, as Figures 1 to 5As shown, a rail transit power product performance test device includes a shell 1; a programmable controller PLC8 is arranged in the shell 1; a touch screen 2, an ammeter 3, a voltmeter 4, a button 6 and a power supply installation position 7 to be tested are arranged on the surface of the shell 1; the power supply 9 to be tested is arranged in the power supply installation position 7 to be tested; the programmable controller PLC8 is connected to the power supply 9 to be tested through an RS485 interface, and is used to control the output voltage value and output current value of the power supply 9 to be tested; the voltmeter 4 is connected to the output end of the power supply 9 to be tested, and is used to measure the output voltage value of the power supply 9 to be tested and send the collected output voltage value to the programmable controller PLC8; the ammeter 3 is connected in series with the load 10 and then connected to the output end of the power supply 9 to be tested, and is used to measure the output current value of the power supply 9 to be tested and send the collected output current value to the programmable controller PLC8; the touch screen 2 is connected to the programmable controller PLC8 through the RS485 interface, and is used to display the collected output voltage value and output current value; the button 6 is connected to the input end of the programmable controller PLC8, and is used to set the output value of the power supply 9 to be tested.

[0029] In this embodiment, the button 6 is connected to the input terminal of the programmable controller PLC8 and is used to set the output value of the power supply 9 to be tested. The output value includes the voltage value and the current value output by the power supply 9 to be tested.

[0030] In this embodiment, first, the operator sets the power supply to be tested 9 in the power supply installation position 7 to be tested. The power supply installation position 7 to be tested is provided with a port connected to the corresponding position of the power supply to be tested 9. The power supply to be tested 9 is provided with an RS485 interface for setting output value parameters. At this time, the programmable controller PLC8 sets the output voltage value and output current value of the power supply to be tested 9 through the RS485 interface. Further, the ammeter 3 collects the output current value of the power supply to be tested 9, and the voltmeter 4 collects the output voltage value of the power supply to be tested 9. At this time, the operator observes the readings of the ammeter 3 and the voltmeter 4 to determine whether the performance of the power supply to be tested 9 meets the requirements.

[0031] In this embodiment, the data collected by the ammeter 3 and the voltmeter 4 are sent to the programmable controller PLC8 and can be displayed through the touch screen 2. The operator can also control the programmable controller PLC8 through the touch screen 2 to set the output value of the power supply 9 to be tested.

[0032] In this embodiment, the operator can also control the programmable controller PLC8 to set the output value of the power supply 9 to be tested through the key 6.

[0033] Embodiment 2, as Figure 5 As shown, the external power supply is connected to the input end of the power supply 11, and the output end of the power supply 11 is respectively connected to the power supply end of the touch screen 2, the power supply end of the ammeter 3, the power supply end of the voltmeter 4, the power supply end of the power supply to be tested 9 and the power supply end of the programmable controller PLC8.

[0034] In this embodiment, a main switch 5 is provided between the external power supply and the input end of the power supply 11. The operator can control the opening and closing of the entire rail transit power supply product performance test device through the main switch 5.

[0035] In this embodiment, if Figure 1 As shown, the main switch 5 is arranged on the surface of the housing 1 .

[0036] In this embodiment, if Figure 1 and Figure 3 As shown, the installation position 7 of the power supply to be tested is in the shape of a rectangular groove, and the installation position 7 of the power supply to be tested can conveniently install various types of power supplies to be tested 9.

[0037] Embodiment three, as Figure 2 and Figure 3 As shown, there are multiple buttons 6, and the multiple buttons 6 are used to set different output values ​​of the power supply 9 to be tested.

[0038] In this embodiment, the button 6 can correspond to different output values ​​of the power supply 9 to be tested, such as 3.3V, 5V, 12V, 24V, 48V and 110V, and different test durations of the power supply 9 to be tested can also be set.

[0039] In this example, the touch screen 2 is arranged adjacent to the button 6. When the button 6 is pressed and the input end of the programmable controller PLC8 receives a signal, the programmable controller PLC8 controls the power supply to be tested 9 to output the set output value according to the set output value corresponding to this button 6 through the RS485 interface.

[0040] By setting different output values ​​of the power supply to be tested 9 through multiple buttons 6, fast switching of different working condition tests can be achieved during the performance test of the power supply product.

[0041] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A rail transit power supply product performance test device, characterized in that: The invention comprises a housing (1); a programmable controller PLC (8) is arranged in the housing (1); a touch screen (2), an ammeter (3), a voltmeter (4), a button (6) and a power supply installation position (7) to be tested are arranged on the surface of the housing (1); a power supply (9) to be tested is arranged in the power supply installation position (7); the programmable controller PLC (8) is connected to the power supply (9) to be tested via an RS485 interface and is used to control the output voltage value and output current value of the power supply (9) to be tested; the voltmeter (4) is connected to the output end of the power supply (9) to be tested and is used to measure the output voltage value of the power supply (9) to be tested and output current value thereof; The collected output voltage value is sent to the programmable controller PLC (8); the ammeter (3) is connected in series with the load (10) and then connected to the output end of the power supply to be tested (9), so as to measure the output current value of the power supply to be tested (9) and send the collected output current value to the programmable controller PLC (8); the touch screen (2) is connected to the programmable controller PLC (8) via an RS485 interface, so as to display the collected output voltage value and output current value; the button (6) is connected to the input end of the programmable controller PLC (8), so as to set the output value of the power supply to be tested (9).

2. A rail transit power supply product performance testing device according to claim 1, characterized in that: The external power supply is connected to the input end of the power supply (11), and the output end of the power supply (11) is respectively connected to the power supply end of the touch screen (2), the power supply end of the ammeter (3), the power supply end of the voltmeter (4), the power supply end of the power supply to be tested (9) and the power supply end of the programmable controller PLC (8) in a one-to-one correspondence.

3. A rail transit power product performance testing device according to claim 2, characterized in that: A main switch (5) is provided between the external power supply and the input end of the power supply (11).

4. A rail transit power product performance testing device according to claim 3, characterized in that: The main switch (5) is arranged on the surface of the housing (1).

5. A rail transit power product performance testing device according to claim 1, characterized in that: The installation position (7) of the power supply to be tested is in the shape of a rectangular groove.

6. A rail transit power product performance testing device according to claim 1, characterized in that: There are a plurality of buttons (6), and the plurality of buttons (6) are used to set different output values ​​of the power supply (9) to be tested.

7. A rail transit power product performance testing device according to claim 1, characterized in that: The touch screen (2) and the button (6) are arranged adjacent to each other.

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