Leakage current detection board test tool

Abstract

The utility model discloses a leakage current detection board test tool, which comprises a test platform and a two-way voltage-stabilized power supply, and is characterized in that the test platform is provided with a circuit breaker, a zero sequence current transformer, an alternating current contactor, a switch and an indicating lamp; the leakage current detection board is respectively connected with the two-way voltage-stabilized power supply, the alternating current contactor, the zero sequence current transformer and the circuit breaker according to interface definition; the plurality of switches and the plurality of indicating lamps are correspondingly arranged and are oppositely arranged at the edges of the two sides of the test platform, and the indicating lamps display the state of a test result by turning on the switches of the corresponding paths. According to the utility model, test preparatory work is greatly saved, wrong welding of test cables is avoided, test indexes are clear and visible, and use is convenient and efficient; the structure process is simple, the size is small and the weight is light.

Description

Technical Field

[0001] The utility model relates to the technical field of board-level welding test tooling, in particular to a leakage current detection board test tooling. Background Art

[0002] In the board-level welding test tooling, the leakage current detection board (TZ3.155.056) is frequently used and in high demand. Since the leakage current detection board has many interface definitions, the wiring is complicated and inconvenient during testing; and it is often necessary to repeatedly build a temporary test bench, resulting in a lot of time spent on preparation work during board-level welding testing. In addition, when temporarily welding test cables and plug-ins, welding leaks are prone to occur; temporary test tooling lines are also easy to lose. The above situation has greatly reduced the efficiency of board-level testing.

[0003] It can be seen that it is of great significance to build a fixed portable test tool according to the test requirements of the leakage current detection board to save test preparation work. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a leakage current detection board test tool, including a test platform and a dual-circuit regulated power supply, wherein the test platform is provided with a circuit breaker, a zero-sequence current transformer, an AC contactor, a switch and an indicator light, wherein:

[0005] The leakage current detection board is respectively connected with the dual-circuit voltage-stabilized power supply, the AC contactor, the zero-sequence current transformer and the circuit breaker according to the interface definition;

[0006] The switches and indicator lights are relatively arranged at the edge positions of both sides of the test platform, and a plurality of indicator lights are provided correspondingly. The indicator lights display the status of the test results according to turning on the switches of the corresponding paths.

[0007] Further, the leakage current detection board has X1, X2 and X3 interfaces;

[0008] The X2-1 pin and the X2-8 pin of the leakage current detection board are respectively connected to the zero-sequence current transformer;

[0009] The X1-9 pin of the leakage current detection board passes through the zero-sequence current transformer and is wound around twice to be connected to the X1-10 pin of the leakage current detection board.

[0010] Further, the circuit breaker has four terminals: a first input terminal terminal, a second input terminal terminal, a first output terminal terminal, and a second output terminal terminal.

[0011] The first input terminal terminal of the circuit breaker is connected to the live wire of AC220V, the first output terminal terminal terminal of the circuit breaker is respectively connected to the AC contactor and the first leakage current interface of the distribution box test tool, and the first leakage current interface of the distribution box test tool is connected to the first output terminal terminal terminal of the circuit breaker through the zero-sequence current transformer;

[0012] The second input terminal terminal of the circuit breaker is connected to the neutral line of AC220V, and the second output terminal terminal terminal of the circuit breaker is respectively connected to the second leakage current interface of the distribution box test tool and the X1-1 pin of the leakage current detection board.

[0013] Furthermore, the dual-circuit regulated power supply includes a first dual-circuit regulated power supply and a second dual-circuit regulated power supply;

[0014] The positive electrode of the second dual-circuit regulated power supply is connected to the X1-8 pin of the leakage current detection board, and the negative electrode of the second dual-circuit regulated power supply is connected to the X1-18 pin of the leakage current detection board;

[0015] The positive electrode of the first dual-circuit regulated power supply is connected to the pin X3-1 of the leakage current detection board, and the negative electrode of the first dual-circuit regulated power supply is connected to the pin X3-2 of the leakage current detection board.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] Compared with the complicated preparation work of existing leakage current detection board tests, the utility model greatly saves test preparation work, avoids welding the wrong test cables, and the test indicators are clearly visible, which is convenient and efficient to use; at the same time, the structure and process are simple, the size is small and the weight is light. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the utility model;

[0019] Figure 2 This is a schematic diagram of the debugging wiring of the leakage current detection board in the utility model;

[0020] Figure 3 This is a schematic diagram of the interface definition of the leakage current detection board in the utility model.

[0021] In the figure: 10, test platform; 11, circuit breaker; 12, zero-sequence current transformer; 13, switch; 14, indicator light. DETAILED DESCRIPTION

[0022] In order to make the technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments.

[0023] Example

[0024] like Figure 1-2 As shown, the utility model provides a leakage current detection board test tool, including a test platform 10 and a dual-circuit voltage-stabilized power supply, and the test platform 10 is provided with a circuit breaker 11, a zero-sequence current transformer 12, an AC contactor, a switch 13 and an indicator light 14 (some devices are not shown in the attached figure). The leakage current detection board is connected to the dual-circuit voltage-stabilized power supply, the AC contactor, the zero-sequence current transformer 12 and the circuit breaker 11 according to the interface definition; the switch 13 and the indicator light 14 are provided with a plurality of switches 13 and a plurality of indicator lights 14, and are relatively arranged at the edges of both sides of the test platform 10. When in use, the switches 13 of the corresponding circuits are turned on in sequence according to the leakage current detection board debugging manual (TZ3.155.056TS), and the test results can be confirmed according to the status of the indicator light 14.

[0025] like Figure 3 As shown, the leakage current detection board has X1, X2 and X3 interfaces. The leakage current detection board X2-1 pin and the leakage current detection board X2-8 pin are respectively connected to the zero-sequence current transformer 12; the leakage current detection board X1-9 pin passes through the zero-sequence current transformer 12 and is connected to the leakage current detection board X1-10 pin by taking two turns.

[0026] The circuit breaker 1 has four terminals, namely, a first input terminal terminal, a second input terminal terminal, a first output terminal terminal and a second output terminal terminal. The first input terminal terminal of the circuit breaker 11 is connected to the live wire of AC220V, and the first output terminal terminal of the circuit breaker 11 is respectively connected to the AC contactor and the first leakage current interface of the distribution box test tool, and the first leakage current interface of the distribution box test tool is connected to the first output terminal terminal of the circuit breaker 11 through the zero-sequence current transformer 12; the second input terminal terminal of the circuit breaker 11 is connected to the neutral wire of AC220V, and the second output terminal terminal of the circuit breaker 11 is respectively connected to the second leakage current interface of the distribution box test tool and the X1-1 pin of the leakage current detection board.

[0027] The dual-circuit regulated power supply includes a first dual-circuit regulated power supply and a second dual-circuit regulated power supply. The positive electrode of the first dual-circuit regulated power supply is connected to the X3-1 pin of the leakage current detection board, and the negative electrode of the first dual-circuit regulated power supply is connected to the X3-2 pin of the leakage current detection board; the positive electrode of the second dual-circuit regulated power supply is connected to the X1-8 pin of the leakage current detection board, and the negative electrode of the second dual-circuit regulated power supply is connected to the X1-18 pin of the leakage current detection board.

[0028] The specific wiring method of the leakage current detection board test tool provided by the utility model is shown in the following table:

[0029] Table 1 Leakage current detection board debugging wiring table

[0030]

[0031]

[0032] According to Table 1 and Figure 3 The interface definition is based on Figure 2 The device and the cable are connected and fixed on the test platform 10 by the wiring method. When in use, according to the debugging instructions (TZ3.155.056TS) of the leakage current detection board, the switches 13 of the corresponding circuits are turned on in sequence, and the test results can be confirmed according to the status of the corresponding indicator lights 14. The operation is simple and the test indicators are clear and visible.

[0033] Compared with the test time of the existing leakage current detection board, the comprehensive evaluation test efficiency of the utility model is improved by 95%, as shown in the following Table 2:

[0034]

[0035] Through actual testing, the tooling provided by the utility model is easy to operate, can be operated by one person, can be installed and tested immediately, has high testing efficiency, clear testing steps, and clear and visible test indicators, and can quickly test whether the corresponding technical indicators are qualified; at the same time, it avoids ineffective workload such as finding tools, components, cables, and welding tooling.

[0036] 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. Leakage current detection board test tool, characterized in that: The invention comprises a test platform (10) and a dual-circuit voltage-stabilized power supply, wherein the test platform (10) is provided with a circuit breaker (11), a zero-sequence current transformer (12), an AC contactor, a switch (13) and an indicator light (14), wherein: The leakage current detection board is respectively connected to the dual-circuit voltage-stabilized power supply, the AC contactor, the zero-sequence current transformer (12) and the circuit breaker (11) according to the interface definition; The switches (13) and indicator lights (14) are arranged relatively at the edge positions of both sides of the test platform (10), and a plurality of indicator lights (14) are provided correspondingly. The indicator lights (14) display the status of the test results according to the corresponding switch (13) being turned on.

2. The leakage current detection board test tool according to claim 1, characterized in that: The leakage current detection board has X1, X2 and X3 interfaces; The X2-1 pin of the leakage current detection board and the X2-8 pin of the leakage current detection board are respectively connected to the zero-sequence current transformer (12); The X1-9 pin of the leakage current detection board passes through the zero-sequence current transformer (12), is wound around twice, and is connected to the X1-10 pin of the leakage current detection board.

3. The leakage current detection board testing tool according to claim 2, characterized in that: The circuit breaker (11) comprises a first input terminal connection terminal, a second input terminal connection terminal, a first output terminal connection terminal and a second output terminal connection terminal; The first input terminal terminal of the circuit breaker (11) is connected to the live wire of AC220V, the first output terminal terminal terminal of the circuit breaker (11) is respectively connected to the AC contactor and the first leakage current interface of the distribution box test tool, and the first leakage current interface of the distribution box test tool passes through the zero-sequence current transformer (12) and is connected to the first output terminal terminal terminal of the circuit breaker (11); The second input terminal terminal of the circuit breaker (11) is connected to the neutral line of AC220V, and the second output terminal terminal of the circuit breaker (11) is respectively connected to the second leakage current interface of the distribution box test tool and the X1-1 pin of the leakage current detection board.

4. The leakage current detection board test tool according to claim 2 or 3, characterized in that: The dual-circuit voltage-stabilized power supply comprises a first dual-circuit voltage-stabilized power supply and a second dual-circuit voltage-stabilized power supply; The positive electrode of the second dual-circuit regulated power supply is connected to the X1-8 pin of the leakage current detection board, and the negative electrode of the second dual-circuit regulated power supply is connected to the X1-18 pin of the leakage current detection board; The positive electrode of the first dual-circuit regulated power supply is connected to the pin X3-1 of the leakage current detection board, and the negative electrode of the first dual-circuit regulated power supply is connected to the pin X3-2 of the leakage current detection board.

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