Comprehensive safety test tool and system

Abstract

The utility model relates to the technical field of circuit design, and specifically relates to a comprehensive safety test tool and system. The comprehensive safety test tool comprises a high-voltage live wire end interface, a high-voltage zero line end interface, a current end interface, a loop end interface, a human body impedance simulation circuit end interface, a live wire pin interface, a zero line pin interface, a grounding pin interface, a test clamp, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch and a seventh switch. The switches are used for establishing a circuit connection relation required by the interfaces to form the comprehensive safety test tool; when the safety tester is applied, the circuit connection relation between the safety tester and the tested equipment can be changed only by controlling the on and off states of the switch, so that the safety tester can quickly complete testing of different safety testing items, the testing efficiency in the safety testing process is improved, and the testing time is saved.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, and more specifically, to a comprehensive safety regulation testing tooling and system. Background Technology

[0002] To avoid potential hazards to users of medical electrical equipment, safety performance tests are typically required to ensure user safety during use. For example, withstand voltage (dielectric strength), grounding resistance, and leakage current are essential safety requirements that laser therapy machines must meet. Withstand voltage primarily measures the insulation between the equipment's mains power supply and all accessible components or the casing. Grounding resistance measures the continuity between the ground pin of the power plug and all accessible grounding components. Leakage current measures the leakage current at the protective grounding terminal, the casing terminal, and the application terminal. Currently, medical withstand voltage testers, medical grounding resistance testers, and medical leakage current testers, or other safety performance testers, are primarily used to measure these three safety performance parameters.

[0003] Currently, before conducting withstand voltage, grounding resistance, and leakage current tests, testers usually need to connect the circuit between the device under test and the safety tester in advance. The circuit connection relationship is different for different test points. Especially when there are many test points and a large number of products under test, connecting the circuit is time-consuming and affects the test efficiency, resulting in a long test time. Utility Model Content

[0004] The purpose of this invention is to provide a comprehensive safety testing fixture and system to solve the technical problem of low testing efficiency in the existing safety testing process.

[0005] This utility model embodiment provides a comprehensive safety regulation testing fixture, which includes: a high-voltage live wire terminal interface, a high-voltage neutral wire terminal interface, a current terminal interface, a circuit terminal interface, a human body impedance simulation circuit terminal interface, a live wire plug interface, a neutral wire plug interface, a grounding plug interface, a test clip, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a seventh switch; one end of the first switch and the second switch are both connected to the high-voltage live wire terminal interface, and the other end of the first switch is connected to the live wire plug interface; the other end of the second switch is connected to the neutral wire plug interface; one end of the third switch is connected to the high-voltage neutral wire terminal interface, and the other end is connected to the neutral wire plug interface; one end of the fourth switch is connected to the current terminal interface, and the other end is connected to the grounding plug interface; one end of the fifth switch and the sixth switch are both connected to the circuit terminal interface, and the other end of the fifth switch is connected to the grounding plug interface; the other end of the sixth switch is connected to the test clip; one end of the seventh switch is connected to the human body impedance simulation circuit terminal interface, and the other end is connected to the test clip.

[0006] Optionally, the first switch, the second switch, and the sixth switch are all closed, and the integrated safety testing fixture constitutes a withstand voltage test circuit.

[0007] Optionally, both the fourth and sixth switches are closed, and the integrated safety testing fixture constitutes a grounding resistance testing circuit.

[0008] Optionally, the first switch, the third switch, the fifth switch, and the seventh switch are all closed, and the integrated safety testing fixture constitutes a leakage current testing circuit.

[0009] The beneficial effects of this comprehensive safety testing fixture are as follows:

[0010] The aforementioned comprehensive safety testing fixture includes a high-voltage live wire interface, a high-voltage neutral wire interface, a current terminal interface, a circuit terminal interface, a human body impedance simulation circuit terminal interface, a live wire pin interface, a neutral wire pin interface, a grounding pin interface, a test clip, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a seventh switch. These switches are used to establish the necessary circuit connections between the interfaces, forming the comprehensive safety testing fixture. In application, by controlling the closed and open states of the switches through the comprehensive safety testing fixture, the safety testing instrument can complete various safety testing items. This means that for different safety testing items, testers do not need to pre-establish the circuit relationship between the device under test and the safety testing instrument, improving testing efficiency and saving testing time.

[0011] This utility model embodiment provides a comprehensive safety regulation testing system, which includes a safety regulation tester and the aforementioned comprehensive safety regulation testing fixture. The safety regulation tester includes a high-voltage live wire terminal, a high-voltage neutral wire terminal, a current terminal, a loop terminal, and a human body impedance simulation circuit terminal. The high-voltage live wire terminal is connected to the high-voltage live wire terminal interface of the comprehensive safety regulation testing fixture, the high-voltage neutral wire terminal is connected to the high-voltage neutral wire terminal interface of the comprehensive safety regulation testing fixture, the current terminal is connected to the current terminal interface of the comprehensive safety regulation testing fixture, the loop terminal is connected to the loop terminal interface of the comprehensive safety regulation testing fixture, and the human body impedance simulation circuit terminal is connected to the human body impedance simulation circuit terminal interface of the comprehensive safety regulation testing fixture.

[0012] Optionally, the integrated safety testing system further includes a device under test; the device under test includes a live wire pin, a neutral wire pin, a grounding pin, and a test point; the live wire pin is connected to the live wire pin interface of the integrated safety testing fixture, the neutral wire pin is connected to the neutral wire pin interface of the integrated safety testing fixture, the grounding pin is connected to the grounding pin interface of the integrated safety testing fixture, and the test point is connected to the test clip of the integrated safety testing fixture.

[0013] Optionally, the test point is an accessible component or housing of the device under test; the integrated safety testing system constitutes a withstand voltage test loop, and the safety testing instrument acquires the withstand voltage test results.

[0014] Optionally, the test point is an accessible grounding component of the device under test; the integrated safety testing system constitutes a grounding resistance test loop, and the safety testing instrument acquires the grounding resistance test results.

[0015] Optionally, the test points are the protective grounding terminal, the casing terminal, and the application terminal of the device under test; the integrated safety testing system constitutes a leakage current test circuit, and the safety testing instrument acquires the leakage current test results.

[0016] Optionally, the safety testing instrument further includes a display screen; the display screen is used to display the withstand voltage test results, or the grounding resistance test results, or the leakage current test results.

[0017] The comprehensive safety testing system provided by this utility model has the following advantages:

[0018] The integrated safety regulation testing system adopts the aforementioned integrated safety regulation testing fixture, and thus possesses all the advantages of the aforementioned integrated safety regulation testing fixture. This improves the testing efficiency and saves testing time during the safety regulation testing process. For details, please refer to the beneficial effects of the aforementioned integrated safety regulation testing fixture, which will not be repeated here.

[0019] In addition, the integrated safety compliance testing system also includes a safety compliance testing instrument to ensure that the integrated safety compliance testing system can obtain safety compliance test results. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A schematic diagram of the integrated safety testing fixture and system structure provided for an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10 - Comprehensive safety testing fixture; 20 - Safety testing instrument; 30 - Equipment under test;

[0024] GL1 - High-voltage live wire terminal interface; GN1 - High-voltage neutral wire terminal interface; D1 - Current terminal interface; H1 - Circuit terminal interface; MD1 - Human body impedance simulation circuit terminal interface; L1 - Live wire pin interface; N1 - Neutral wire pin interface; PE1 - Grounding pin interface; C1 - Test clip; S1 - First switch; S2 - Second switch; S3 - Third switch; S4 - Fourth switch; S5 - Fifth switch; S6 - Sixth switch; S7 - Seventh switch;

[0025] GL2 - High-voltage live wire terminal; GN2 - High-voltage neutral wire terminal; D2 - Current terminal; H2 - Circuit terminal; MD2 - Human body impedance simulation circuit terminal;

[0026] L2 - Live wire pin; N2 - Neutral wire pin; PE2 - Grounding pin; C2 - Test point. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0028] This utility model embodiment provides a comprehensive safety testing fixture, which includes: a high-voltage live wire terminal interface, a high-voltage neutral wire terminal interface, a current terminal interface, a circuit terminal interface, a human body impedance simulation circuit terminal interface, a live wire pin interface, a neutral wire pin interface, a grounding pin interface, a test clip, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a seventh switch.

[0029] Among them, one end of the first switch and the second switch are both connected to the high-voltage live wire terminal interface, and the other end of the first switch is connected to the live wire plug interface, and the other end of the second switch is connected to the neutral wire plug interface; one end of the third switch is connected to the high-voltage neutral wire terminal interface, and the other end is connected to the neutral wire plug interface; one end of the fourth switch is connected to the current terminal interface, and the other end is connected to the grounding plug interface; the fifth switch and the sixth switch are both connected to the loop terminal interface, and the other end of the fifth switch is connected to the grounding plug interface, and the other end of the sixth switch is connected to the test clip; one end of the seventh switch is connected to the human body impedance simulation circuit terminal (Mock-up Device, MD) interface, and the other end is connected to the test clip.

[0030] It should be noted that all switches installed in the comprehensive safety testing fixture were in the off state before the safety test.

[0031] Optionally, the first switch, the second switch, and the sixth switch are all closed, and the comprehensive safety testing fixture constitutes a withstand voltage test circuit.

[0032] Optionally, when the fourth and sixth switches are closed, the integrated safety testing fixture constitutes a grounding resistance testing circuit.

[0033] Optionally, the first switch, the third switch, the fifth switch, and the seventh switch are all closed, and the comprehensive safety testing fixture constitutes a leakage current testing circuit.

[0034] The beneficial effects of the aforementioned comprehensive safety testing fixture are:

[0035] The aforementioned comprehensive safety testing fixture includes a high-voltage live wire interface, a high-voltage neutral wire interface, a current terminal interface, a circuit terminal interface, a human body impedance simulation circuit terminal interface, a live wire pin interface, a neutral wire pin interface, a grounding pin interface, a test clip, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a seventh switch. These switches are used to establish the necessary circuit connections between the interfaces, forming the comprehensive safety testing fixture. In application, simply controlling the closed and open states of the switches through the comprehensive safety testing fixture allows the safety testing instrument to complete different safety testing items. That is, according to different test items, the on / off states of each switch in the comprehensive safety testing fixture are controlled accordingly to adjust the circuit connection between the safety testing instrument and the device under test. Testing personnel do not need to pre-establish the circuit relationship between the device under test and the safety testing instrument, improving testing efficiency and saving testing time during the safety testing process.

[0036] This utility model provides a comprehensive safety regulation testing system, which includes a safety regulation tester and the aforementioned comprehensive safety regulation testing fixture. The safety regulation tester includes a high-voltage live wire terminal, a high-voltage neutral wire terminal, a current terminal, a circuit terminal, and a human body impedance simulation circuit terminal.

[0037] Specifically, the high-voltage live wire terminal is connected to the high-voltage live wire terminal interface of the aforementioned integrated safety testing fixture, the high-voltage neutral wire terminal is connected to the high-voltage neutral wire terminal interface of the aforementioned integrated safety testing fixture, the current terminal is connected to the current terminal interface of the aforementioned integrated safety testing fixture, the circuit terminal is connected to the circuit terminal interface of the aforementioned integrated safety testing fixture, and the human body impedance simulation circuit terminal is connected to the human body impedance simulation circuit terminal interface of the aforementioned integrated safety testing fixture.

[0038] Optionally, the aforementioned integrated safety testing system also includes the device under test (DUT). The DUT includes a live wire pin, a neutral wire pin, a grounding pin, and test points.

[0039] The live wire pin is connected to the live wire pin interface of the aforementioned integrated safety test fixture, the neutral wire pin is connected to the neutral wire pin interface of the aforementioned integrated safety test fixture, the grounding pin is connected to the grounding pin interface of the aforementioned integrated safety test fixture, and the test point is connected to the test clip of the aforementioned integrated safety test fixture.

[0040] Optionally, the test points are accessible components or the housing of the device under test. The aforementioned integrated safety testing system constitutes a withstand voltage test loop, and the aforementioned safety testing instrument acquires the withstand voltage test results.

[0041] Optionally, the test points are accessible grounding components of the equipment under test; the integrated safety testing system constitutes a grounding resistance test loop, and the safety testing instrument acquires the grounding resistance test results.

[0042] Optionally, the test points mentioned above are the protective grounding terminal, the casing terminal, and the application terminal of the device under test; the comprehensive safety testing system mentioned above constitutes a leakage current test circuit, and the safety testing instrument mentioned above obtains the leakage current test results.

[0043] Optionally, the aforementioned safety testing instrument also includes a display screen; the display screen is used to display the withstand voltage test results, or the grounding resistance test results, or the leakage current test results.

[0044] In summary, by employing the aforementioned integrated safety testing fixture, this comprehensive safety testing system possesses all the advantages of that fixture, thereby improving testing efficiency and saving testing time during the safety testing process. For details, please refer to the beneficial effects of the power supply protection circuit described above, which will not be repeated here. Furthermore, the comprehensive safety testing system also includes a safety testing instrument to ensure that it can obtain safety testing results.

[0045] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0046] See Figure 1 The diagram shows the integrated safety testing fixture and system structure. The integrated safety testing fixture 10 includes a high-voltage live wire interface GL1, a high-voltage neutral wire interface GN1, a current terminal interface D1, a circuit terminal interface H1, a human body impedance simulation circuit terminal interface MD1, a live wire pin interface L1, a neutral wire pin interface N1, a grounding pin interface PE1, a test clip C1, a first switch S1, a second switch S2, a third switch S3, a fourth switch S4, a fifth switch S5, a sixth switch S6, and a seventh switch S7. The safety testing instrument 20 includes a high-voltage live wire terminal GL2; a high-voltage neutral wire terminal GN2; a current terminal D2; a circuit terminal H2; and a human body impedance simulation circuit terminal MD2. The device under test 30 includes a live wire pin L2; a neutral wire pin N2; a grounding pin PE2; and a test point C2.

[0047] It should be noted that the live wire pin L2, the neutral wire pin N2, and the grounding pin PE2 together constitute the AC terminal of the device under test 30.

[0048] The internal connections of the comprehensive safety testing fixture 10 are as follows: one end of the first switch S1 and the second switch S2 are both connected to the high-voltage live wire interface GL1, the other end of the first switch S1 is connected to the live wire plug interface L1, and the other end of the second switch S2 is connected to the neutral wire plug interface N1; one end of the third switch S3 is connected to the high-voltage neutral wire interface GN1, and the other end is connected to the neutral wire plug interface N1; one end of the fourth switch S4 is connected to the current terminal interface D1, and the other end is connected to the grounding plug interface PE1; one end of the fifth switch S5 and the sixth switch S6 are both connected to the loop terminal interface H1, the other end of the fifth switch S5 is connected to the grounding plug interface PE1, and the other end of the sixth switch S6 is connected to the test clip C1; one end of the seventh switch S7 is connected to the human body impedance simulation circuit terminal interface MD1, and the other end is connected to the test clip C1. The external connections of the comprehensive safety testing fixture 10 are as follows: the high-voltage live wire interface GL1 is connected to the high-voltage live wire terminal GL2 of the safety tester 20; the high-voltage neutral wire interface GN1 is connected to the high-voltage neutral wire terminal GN2 of the safety tester 20; the current terminal interface D1 is connected to the current terminal D2 of the safety tester 20; the circuit terminal interface H1 is connected to the circuit terminal H2 of the safety tester 20; the human body impedance simulation circuit terminal interface MD1 is connected to the human body impedance simulation circuit terminal MD2 of the safety tester 20; the live wire pin interface L1 is connected to the live wire pin L2 of the device under test 30; the neutral wire pin interface N1 is connected to the neutral wire pin N2 of the device under test 30; the grounding pin interface PE1 is connected to the grounding pin PE2 of the device under test 30; and the test clamp C1 is connected to the test point C2 of the device under test 30.

[0049] A comprehensive safety testing system includes a comprehensive safety testing fixture 10, a safety testing instrument 20, and a device under test (DUT) 30. The high-voltage terminal (i.e., high-voltage live wire terminal GL2 and high-voltage neutral wire terminal GN2), the circuit terminal H2 (voltage sampling terminal), the current terminal D2, and the human body impedance simulation circuit terminal MD2 of the safety testing instrument 20 are connected to the internal circuitry of the comprehensive safety testing fixture 10. The test clamp C1 of the comprehensive safety testing fixture 10 is connected to the test point C2 (such as accessible components, housing, application terminals, etc.) of the DUT 30. The AC terminals of the DUT 30 (i.e., live wire pin L2, neutral wire pin N2, and grounding pin PE2) are connected to the comprehensive safety testing fixture 10. The safety tester 20 has three test items: withstand voltage, grounding resistance and leakage current. The integrated safety test fixture 10 controls the on / off state of each switch in the integrated safety test fixture 10 according to the test items selected by the safety tester 20, so as to adjust the circuit connection relationship between the safety tester 20 and the device under test 30.

[0050] For example, the working principle of the above-mentioned integrated safety testing fixture and integrated safety testing system is as follows:

[0051] See also Figure 1 When the safety tester 20 is selected for withstand voltage testing, the high-voltage live wire terminal GL2 of the safety tester 20 is connected to the mains power supply (i.e., live wire pin L2 and neutral wire pin N2) of the device under test 30 through the integrated safety test fixture 10. The loop terminal H2 of the safety tester 20 is connected to the test clamp C1 of the integrated safety test fixture 10. The test clamp C1 is used to clamp all accessible components or housings of the device under test 30 at test points C2, forming a circuit connection before measurement. When the safety tester 20 is selected for grounding resistance testing, the current terminal D2 of the safety tester 20 is connected to the grounding pin PE2 of the device under test 30 through the integrated safety test fixture 10. The loop terminal H2 of the safety tester 20 is connected to the test clamp C1 of the integrated safety test fixture 10. The test clamp C1 is used to clamp all accessible grounding components or housings of the device under test 30 at test points C2, forming a circuit connection before measurement. When the safety tester 20 selects leakage current testing, the high-voltage terminal (i.e., the high-voltage live wire terminal GL2 and the high-voltage neutral wire terminal GN2) and the circuit terminal H2 of the safety tester 20 are connected to the AC terminal of the device under test 30 through the integrated safety test fixture 10. The human body impedance simulation circuit terminal MD2 of the safety tester 20 is connected to the test clip C1 of the integrated safety test fixture 10. The test clip C1 is used to clamp the test points C2 of the protective grounding terminal, shell terminal and application terminal of the device under test 30, forming a circuit connection for measurement.

[0052] Specifically, see [link to relevant documentation] Figure 1Withstand voltage test: The first switch S1 and the second switch S2 of the integrated safety test fixture 10 are closed, connecting the high-voltage live wire terminal GL2 of the safety tester 20 to the live wire pin L2 and the neutral wire pin N2 of the device under test 30, thus short-circuiting the live wire pin L2 and the neutral wire pin N2 of the device under test 30; the sixth switch S6 of the integrated safety test fixture 10 is closed, connecting the loop terminal H2 of the safety tester 20 to the test clip C1 of the integrated safety test fixture 10; the test clip C1 of the integrated safety test fixture 10 clamps the test point C2 of the device under test 30, forming a loop measurement, and the test result is displayed on the display screen of the safety tester 20.

[0053] Grounding resistance test: The fourth switch S4 of the integrated safety test fixture 10 is closed, connecting the current terminal D2 of the safety tester 20 to the grounding pin PE2 of the device under test 30, thereby connecting the current terminal D2 of the safety tester 20 to the grounding pin PE2 of the device under test 30; the sixth switch S6 of the integrated safety test fixture 10 is closed, connecting the loop terminal H2 of the safety tester 20 to the test clip C1 of the integrated safety test fixture 10; the test clip C1 of the integrated safety test fixture 10 clamps the test point C2 of the device under test 30, forming a loop. After measurement, the test result is displayed on the display screen of the safety tester 20.

[0054] Leakage current test: The first switch S1 of the integrated safety testing fixture 10 is closed, connecting the high-voltage live wire terminal GL2 of the safety tester 20 to the live wire pin L2 of the device under test 30, thus connecting the high-voltage live wire terminal GL2 of the safety tester 20 to the live wire pin L2 of the device under test 30; the third switch S3 of the integrated safety testing fixture 10 is closed, connecting the high-voltage neutral wire terminal GN2 of the safety tester 20 to the neutral wire pin N2 of the device under test 30, thus connecting the high-voltage neutral wire terminal GN2 of the safety tester 20 to the neutral wire pin N2 of the device under test 30; integrated safety testing fixture 10 When the fifth switch S5 of the safety tester 20 is closed, the loop terminal H2 of the safety tester 20 is connected to the grounding pin PE2 of the device under test 30, thus connecting the loop terminal H2 of the safety tester 20 to the grounding pin PE2 of the device under test 30. When the seventh switch S7 of the integrated safety test fixture 10 is closed, the human body impedance simulation circuit terminal MD2 of the safety tester 20 is connected to the test clip C1 of the integrated safety test fixture 10. The test clip C1 of the integrated safety test fixture 10 clamps the test point C2 of the device under test 30, forming a loop. After measurement, the test result is displayed on the display screen of the safety tester 20.

[0055] It should be noted that the withstand voltage, grounding resistance, and leakage current tests were all conducted under abnormal operating conditions of the device under test (DUT) 30. During the withstand voltage test, a short circuit occurred when the first switch S1 and the second switch S2 were simultaneously closed while the fourth switch S4 was not closed. This short circuit during the withstand voltage test is to test the insulation capability of the DUT 30, i.e., to test whether it will break down under high voltage. During the leakage current test, although power was supplied to the DUT 30, it did not emit light normally. During the leakage current test, because the first switch S1, the second switch S2, and the fourth switch S4 were all closed, there was no short circuit, equivalent to a three-prong plug connected to the power grid.

[0056] Example 1: See also Figure 1 The ports and interfaces between the integrated safety testing fixture 10, the safety testing instrument 20, and the device under test (DUT) 30 are connected accordingly. The test clamp C1 of the integrated safety testing fixture 10 is used to clamp all accessible components or housings of the DUT 30 at test points C2. Therefore, the safety testing instrument 20 can select withstand voltage test items and, through the integrated safety testing fixture 10, controls the first switch S1, the second switch S2, and the fourth switch S4 to close and conduct, connecting the high-voltage live wire terminal GL2 of the safety testing instrument 20 to the mains power supply of the DUT 30, and connecting the loop terminal H2 of the safety testing instrument 20 to test point C2 of the DUT 30, thus controlling the circuit connection between the safety testing instrument 20 and the DUT 30. The safety testing instrument 20 outputs a high voltage of 1500V, 3000V, etc., to the mains power supply of the DUT 30 through the high-voltage live wire terminal GL2 for a 60-second withstand voltage test.

[0057] Example 2: See also Figure 1 The ports and interfaces between the integrated safety testing fixture 10, the safety tester 20, and the device under test (DUT) 30 are connected accordingly. The test clamp C1 of the integrated safety testing fixture 10 is used to clamp all accessible grounding components and test points C2 of the DUT 30. Therefore, the safety tester 20 can select the grounding resistance test item, and through the integrated safety testing fixture 10, it controls the fourth switch S4 and the sixth switch S6 to close and conduct, so that the current terminal D2 of the safety tester 20 is connected to the grounding pin PE2 of the power plug of the DUT 30, and the loop terminal H2 of the safety tester 20 is connected to the test point C2 of the DUT 30, thereby controlling the circuit connection between the safety tester 20 and the DUT 30. The safety tester 20 outputs a current of 25A to the grounding pin PE2 of the power plug of the DUT 30 through the current terminal D2 to perform a 60-second grounding resistance test.

[0058] Example 3: See also Figure 1The ports and interfaces between the integrated safety testing fixture 10, the safety tester 20, and the device under test (DUT) 30 are connected accordingly. The test clamp C1 of the integrated safety testing fixture 10 is used to clamp the protective grounding terminal, casing terminal, and application terminal test point C2 of the DUT 30. Therefore, the safety tester 20 can select leakage current test items and, through the integrated safety testing fixture 10, controls the first switch S1, the third switch S3, the fifth switch S5, and the seventh switch S7 to close and conduct, enabling the safety tester 20 to supply power (conduct working power) to the DUT 30. The human body impedance simulation circuit terminal MD2 of the safety tester 20 is connected to the test point C2 of the DUT 30, thus controlling the circuit connection between the safety tester 20 and the DUT 30. The safety tester 20 outputs a high voltage of 264V to the test point C2 of the DUT 30 through its high-voltage terminal for a 60-second leakage current test.

[0059] By applying the technical solution provided by this utility model, and based on the test items selected by the safety testing instrument, the integrated safety testing fixture can control the on / off state of each switch in the circuit to adjust the circuit connection between the device under test and the safety testing instrument. This allows for the measurement of withstand voltage, grounding resistance, and leakage current without the need for connecting multiple cumbersome test circuits. It can be seen that the solution provided by this utility model achieves safety testing, and obtains convenient, fast, and effectively improves the efficiency of safety testing.

[0060] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0061] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated safety testing tool, comprising: The comprehensive safety regulation test tool comprises a high-voltage live wire terminal interface, a high-voltage zero wire terminal interface, a current terminal interface, a loop terminal interface, a human body impedance simulation circuit terminal interface, a live wire pin interface, a zero wire pin interface, a ground pin interface, a test clamp, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch and a seventh switch. One end of the first switch and the second switch is connected to the high-voltage live wire terminal interface, the other end of the first switch is connected to the live wire pin interface, and the other end of the second switch is connected to the zero wire pin interface; one end of the third switch is connected to the high-voltage zero wire terminal interface, and the other end is connected to the zero wire pin interface; one end of the fourth switch is connected to the current terminal interface, and the other end is connected to the ground pin interface; one end of the fifth switch and the sixth switch is connected to the loop terminal interface, the other end of the fifth switch is connected to the ground pin interface, and the other end of the sixth switch is connected to the test clamp; one end of the seventh switch is connected to the human body impedance simulation circuit terminal interface, and the other end is connected to the test clamp.

2. The integrated safety test fixture of claim 1, wherein, The first switch, the second switch and the sixth switch are closed, and the comprehensive safety regulation test tool forms a withstand voltage test circuit.

3. The integrated safety test fixture of claim 1, wherein, The fourth switch and the sixth switch are closed, and the comprehensive safety regulation test tool forms a ground resistance test circuit.

4. The integrated safety test fixture of claim 1, wherein, The first switch, the third switch, the fifth switch and the seventh switch are closed, and the comprehensive safety regulation test tool forms a leakage current test circuit.

5. An integrated safety testing system, comprising: The comprehensive safety regulation test system comprises a safety regulation test instrument and the comprehensive safety regulation test tool of any one of claims 1-4; the safety regulation test instrument comprises a high-voltage live wire terminal, a high-voltage zero wire terminal, a current terminal, a loop terminal and a human body impedance simulation circuit terminal; The high-voltage live wire terminal is connected to the high-voltage live wire terminal interface of the comprehensive safety regulation test tool, the high-voltage zero wire terminal is connected to the high-voltage zero wire terminal interface of the comprehensive safety regulation test tool, the current terminal is connected to the current terminal interface of the comprehensive safety regulation test tool, the loop terminal is connected to the loop terminal interface of the comprehensive safety regulation test tool, and the human body impedance simulation circuit terminal is connected to the human body impedance simulation circuit terminal interface of the comprehensive safety regulation test tool.

6. The integrated safety test system of claim 5, wherein, The comprehensive safety regulation test system further comprises a device under test; the device under test comprises a live wire pin, a zero wire pin, a ground pin and a test point; The live wire pin is connected to the live wire pin interface of the comprehensive safety regulation test tool, the zero wire pin is connected to the zero wire pin interface of the comprehensive safety regulation test tool, the ground pin is connected to the ground pin interface of the comprehensive safety regulation test tool, and the test point is connected to the test clamp of the comprehensive safety regulation test tool.

7. The integrated safety test system of claim 6, wherein, The test point is a touchable component or shell of the device under test; The comprehensive safety regulation test system forms a withstand voltage test circuit, and the safety regulation test instrument obtains a withstand voltage test result.

8. The integrated safety test system of claim 6, wherein, The test point is a touchable ground component of the device under test; The comprehensive safety regulation test system forms a ground resistance test circuit, and the safety regulation test instrument obtains a ground resistance test result.

9. The integrated safety test system of claim 6, wherein, The test points are a protective grounding end, a shell end and an application end of the device under test; The integrated safety regulation test system constitutes a leakage current test loop, and the safety regulation tester acquires a leakage current test result.

10. The integrated safety test system of claim 5, wherein, The safety regulation tester further comprises a display screen. The display screen is used for displaying a voltage resistance test result, or a grounding resistance test result, or a leakage current test result.

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