A short circuit testing device

Abstract

The utility model discloses a short -circuit testing arrangement, including short -circuit testing box, the front end of short -circuit testing box is provided with at least 12 groups first socket, the rear end of short -circuit testing box is provided with at least 12 groups with first socket direct connection's second socket, the top of short -circuit testing box is provided with at least 12 single pole double throw switch of corresponding each socket, one side of short -circuit testing box is provided with voltage source anode Usmax interface and voltage source cathode Ground interface, when corresponding single pole double throw switch is on, corresponding cable short -circuit to voltage source anode Usmax interface, when corresponding single pole double throw switch is down, corresponding cable short -circuit to voltage source cathode Ground interface, when single pole double throw switch is in the middle, cable normal intercommunication, the utility model can simplify short -circuit testing procedure, reduce the complexity of manual operation, ensure that every test can accurately, clearly detect the short -circuit state of circuit to provide enough security guarantee.

Description

Technical Field

[0001] This utility model relates to the field of short-circuit testing, and specifically to a short-circuit testing device. Background Technology

[0002] With the widespread application of electronic devices and electrical systems, short-circuit testing has become an indispensable and crucial step in the research, development, and production of electrical products. In the manufacturing process of electronic products and electrical equipment, short-circuit testing is used not only to check whether a circuit can safely disconnect under short-circuit conditions, but also to verify the stability and reliability of the circuit under short-circuit conditions. Effective short-circuit testing can prevent safety problems caused by short circuits during equipment use, such as circuit damage, battery overheating, and fires.

[0003] However, traditional short-circuit testing methods have certain drawbacks, especially in the complexity of operation, cumbersome wiring, and susceptibility to errors, which affects the accuracy and safety of the short-circuit test. The traditional approach typically involves stripping the insulation of the cable under test and then connecting the "positive wire" and "ground wire" from the power supply end to the cable. Because the testing process requires manual operation of multiple connection points, and there are many cables under test, misconnections and omissions are prone to occur, increasing the difficulty and risk of errors in the test.

[0004] Furthermore, traditional short-circuit testing methods lack effective management and control mechanisms. It's difficult to test only one line at a time during the testing process, easily leading to multiple channels being connected simultaneously and producing erroneous test results. Even with manual inspection, wiring errors are often unavoidable, especially in complex testing environments. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a short-circuit testing device that simplifies the short-circuit testing process, reduces the complexity of manual operation, ensures accurate and clear detection of the circuit's short-circuit state in each test, and provides sufficient safety assurance. Through optimized design, the operability and reliability of the testing equipment are improved, thereby reducing testing errors and increasing the efficiency of short-circuit testing.

[0006] This utility model is achieved through the following technical solution: a short-circuit testing device, comprising:

[0007] A short-circuit test box, wherein the front end of the short-circuit test box is provided with at least 12 sets of first sockets, the rear end of the short-circuit test box is provided with at least 12 sets of second sockets directly connected to the first sockets, the top of the short-circuit test box is provided with at least 12 single-pole double-throw switches corresponding to each socket, and one side of the short-circuit test box is provided with a voltage source positive Usmax interface and a voltage source negative Ground interface;

[0008] When the corresponding single-pole double-throw switch is flipped up, the corresponding cable is short-circuited to the positive terminal Usmax interface of the voltage source. When the corresponding single-pole double-throw switch is flipped down, the corresponding cable is short-circuited to the negative terminal Ground interface of the voltage source. When the single-pole double-throw switch is in the middle, the cable is normally connected.

[0009] A sample load is electrically connected to a corresponding second socket on the short-circuit test box.

[0010] A short-circuit power supply, wherein the power input terminal of the short-circuit power supply is connected to the indoor power supply, one path of the short-circuit power supply is connected to the positive Usmax interface of the voltage source of the short-circuit test box, the other path of the short-circuit power supply is connected to the negative Ground interface of the voltage source of the short-circuit test box, and the ground wire of the short-circuit power supply is connected to the negative wire of the sample power supply.

[0011] The sample to be tested is connected to one of the first sockets of the short-circuit test box through two sets of test leads. The sample to be tested is connected to the sample power supply and is powered by the sample power supply.

[0012] As a preferred technical solution, the short-circuit test box is also equipped with a fuse.

[0013] As a preferred technical solution, the test lead group includes a first test lead group and a second test lead group, wherein each of the first test lead group and the second test lead group is connected to the corresponding socket hole of the first socket by one or more test leads.

[0014] As a preferred technical solution, the short-circuit power supply is connected to the positive Usmax interface of the short-circuit test box via a positive voltage source wire, and the short-circuit power supply is connected to the negative Ground interface of the short-circuit test box via a negative voltage source wire.

[0015] As a preferred technical solution, there are 12 first sockets and 12 second sockets, and 12 single-pole double-throw switches. Each single-pole double-throw switch corresponds to a set of sockets. The first sockets and the second sockets are arranged in two rows, one above the other, with six sockets in each row.

[0016] As a preferred technical solution, both the first socket and the second socket are 4mm banana-shaped sockets.

[0017] As a preferred technical solution, the short-circuit test box is also equipped with a fuse indicator light, which is lit when the fuse is working normally.

[0018] The beneficial effects of this utility model are: by integrating 12 sets of sockets and corresponding single-pole double-throw switches, this utility model realizes a control method that only short-circuits one line in each test, avoiding the situation of multiple channels being short-circuited or misconnected at the same time in traditional manual operation, thus ensuring the accuracy and reliability of the test.

[0019] Secondly, the device is equipped with fuses and safety indicator lights, which can provide timely safety warnings when the circuit is overloaded or malfunctions, effectively avoiding the risk of circuit damage or personal injury;

[0020] Furthermore, the operation during the testing process is very simple. Users only need to turn on the corresponding single-pole double-throw switch as needed to complete the short circuit test. There is no need for complicated wiring, which greatly improves work efficiency.

[0021] In addition, the device is compact and rationally laid out, which not only saves space but also keeps the testing process neat and orderly. With clear indicator lights and an intuitive operating interface, operators can quickly understand and master the usage method, reducing the error rate during operation. Attached Figure Description

[0022] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the present invention;

[0025] Figure 3 This is a test circuit diagram for multiple test samples of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Short-circuit test box; 8. First socket; 9. Second socket; 13. Single-pole double-throw switch; 14. Voltage source positive Usmax interface; 15. Voltage source negative Ground interface; 10. Sample load; 11. Short-circuit power supply; 6. First test lead group; 7. Second test lead group; 5. Fuse; 2. Sample to be tested; 3. Sample power supply; 4. Voltage source positive wire; 12. Ground wire; 16. Voltage source negative wire. Detailed Implementation

[0028] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0029] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0030] like Figures 1-3 As shown, the present invention provides a short circuit testing device, including a short circuit test box 1. The front end of the short circuit test box 1 is provided with 12 sets of first sockets 8, and the rear end is provided with 12 sets of second sockets 9 directly connected to the first sockets 8.

[0031] The first socket 8 and the second socket 9 are connected by direct electrical connection to ensure the stability and reliability of signal transmission. The top of the short-circuit test box 1 is equipped with 12 single-pole double-throw switches 13, each corresponding to a set of sockets.

[0032] Each single-pole double-throw switch 13 has three operating states: up, middle position, and down. Specifically, when the single-pole double-throw switch 13 is flipped to the up position, the output terminal of the switch is connected to the positive Usmax interface 14 of the voltage source, which shorts the corresponding cable to the positive terminal of the voltage source.

[0033] When the single-pole double-throw switch 13 is switched to the lower position, the output terminal of the switch is connected to the negative terminal of the voltage source Ground interface 15, which short-circuits the corresponding cable to the negative terminal of the voltage source; when the single-pole double-throw switch 13 is in the middle position, the cable is in a normal connected state and no short-circuit operation occurs.

[0034] In actual arrangement, the 12 sets of first sockets 8 and the 12 sets of second sockets 9 each have a corresponding number. That is, in order to distinguish them, the 12 sets of first sockets 8 are arranged with numbers from 1 to 12, and the 12 sets of second sockets 9 are also arranged with numbers from 1 to 12, so as to facilitate the differentiation of the socket channels.

[0035] One side of the short-circuit test box 1 has two interfaces: a positive Usmax interface 14 and a negative Ground interface 15, for connecting the short-circuit power supply 11. The input of the short-circuit power supply 11 is connected to an indoor power source to provide a stable operating voltage. The output of the short-circuit power supply 11 is connected to the short-circuit test box 1 via wires, one wire connected to the positive Usmax interface 14 and the other to the negative Ground interface 15. Simultaneously, the ground wire 12 of the short-circuit power supply 11 is connected to the negative wire of the sample power supply 3. Through this connection method, the short-circuit power supply 11 can provide a reliable short-circuit voltage to the test sample, and grounding ensures safety.

[0036] The sample load 10 is electrically connected to the second socket 9 in the short-circuit test box 1 via a wire. The sample 2 to be tested is connected to the first socket 8 of the short-circuit test box 1 via two sets of test leads. Each set of test leads consists of multiple test leads, with the plug of each test lead connected one-to-one to the socket in the first socket 8. To ensure the safety and stability of the test lead connections, the test lead sets are made of high-quality insulation material and have good anti-interference performance. The test lead sets consist of two parts, namely the first test lead set 6 and the second test lead set 7, which are respectively connected to the two sockets in the first socket 8 to ensure that the sample 2 to be tested can operate normally with the power supply.

[0037] The short-circuit test box 1 is also equipped with fuse 5, which protects the circuit by automatically disconnecting in the event of overcurrent or short circuit, preventing equipment damage or safety hazards caused by excessive current. For additional safety, the short-circuit test box 1 also features a fuse indicator light. When fuse 5 is functioning normally, the indicator light is on, providing users with intuitive feedback on the operating status. When fuse 5 blows due to overcurrent, the indicator light goes out, reminding the user to check and replace fuse 5 promptly. The fuse indicator light uses a high-brightness LED light source design, offering high brightness and low power consumption, providing clear visual indication under various lighting conditions.

[0038] Both the first socket 8 and the second socket 9 consist of 12 units, arranged in two rows of 6 units each. This compact layout facilitates quick identification and operation by the user. Both sockets 8 and 9 use 4mm banana-shaped sockets, which offer excellent conductivity and reliable mechanical properties, meeting the demands of high-frequency plugging and unplugging operations. Furthermore, the tight fit between the socket and plug effectively prevents testing errors caused by poor contact.

[0039] In practice, the user first connects the short-circuit test box 1 to the short-circuit power supply 11, ensuring all single-pole double-throw switches 13 are in the middle position. The sample 2 to be tested is connected to the first socket 8 of the short-circuit test box 1 via the test leads, and simultaneously connected to the sample power supply 3 for power. The user toggles the corresponding single-pole double-throw switch 13 according to the testing requirements, moving it upwards for a positive short-circuit test or downwards for a negative short-circuit test. After each test, the user must reset the switch to the middle position to ensure the path for the next test is not interfered with. Through this operation, the short-circuit test box 1 can quickly and accurately complete short-circuit tests on multiple samples, while avoiding the errors and omissions inherent in traditional testing methods, significantly improving testing efficiency and safety.

[0040] Detailed description of the workflow, such as Figure 2 and Figure 3 As shown:

[0041] Preparation phase:

[0042] Before starting the test, ensure that all single-pole double-throw switches 13 are in the neutral position. This ensures that no path is connected to the positive or negative terminal of the voltage source, the cables are properly connected, and no short circuit occurs.

[0043] Verify that the test equipment connections are correct. Connect the sample 2 to be tested to the first socket 8 of the short-circuit test box 1 via the test lead set. The test lead set must be secure and reliable.

[0044] Preparation before testing:

[0045] Connect the short-circuit test box 1 to the voltage source (Usmax) and ground 12 to ensure that the power supply is correctly connected and that the voltage source and ground interface are connected.

[0046] Ensure that the short-circuit power supply 11 is connected to the Usmax interface and Ground interface of the test box, and that the ground wire 12 is connected to the negative wire of the sample power supply 3.

[0047] Check that fuse 5 and the fuse indicator light are working properly to ensure the safety of the circuit.

[0048] Start short-circuit test:

[0049] Select the test path: Determine the socket pairs that need to be short-circuited according to the required test path. The tester selects the corresponding socket pairs based on the sample layout, such as socket 8 and socket 9, socket 3 and socket 4, etc.

[0050] Operating the single-pole double-throw switch 13:

[0051] When it is necessary to short-circuit a particular socket pair to the positive terminal (Usmax) of the voltage source, switch the single-pole double-throw switch 13 of the corresponding socket pair to the up position. At this time, the positive terminal of the cable will be connected to the Usmax interface of the voltage source, and current will flow into the test lead.

[0052] After completing the positive short circuit, place the switch in the middle position. At this point, the cable connection returns to normal.

[0053] If you need to short-circuit the circuit of this socket pair to the negative terminal (Ground) of the voltage source, turn the switch down. At this time, the negative terminal of the cable will be connected to the Ground terminal of the voltage source, and the current will return through the test lead.

[0054] Only one switch should be toggled at a time for short-circuit testing to avoid shorting multiple channels simultaneously. After each operation, return the switch to the middle position to ensure no incorrect connection is made.

[0055] Test completion and end:

[0056] After each short-circuit test, confirm that no abnormalities have occurred in the test path to ensure that sample load 10 has been effectively tested.

[0057] After testing each channel, check fuse 5 and the fuse indicator light to ensure that no circuit overload or fault has occurred.

[0058] After completing all tests, turn off all switches and return them to their neutral positions to ensure the equipment is in a safe state.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A short-circuit testing device, characterized in that, include: A short-circuit test box (1) is provided with at least 12 sets of first sockets (8) on the front end face of the short-circuit test box (1), at least 12 sets of second sockets (9) directly connected to the first sockets (8) on the rear end face of the short-circuit test box (1), at least 12 single-pole double-throw switches (13) corresponding to each socket on the top of the short-circuit test box (1), and a voltage source positive Usmax interface (14) and a voltage source negative Ground interface (15) on one side of the short-circuit test box (1). When the corresponding single-pole double-throw switch (13) is flipped up, the corresponding cable is short-circuited to the positive terminal Usmax interface (14) of the voltage source. When the corresponding single-pole double-throw switch (13) is flipped down, the corresponding cable is short-circuited to the negative terminal Ground interface (15) of the voltage source. When the single-pole double-throw switch (13) is in the middle, the cable is normally connected. The sample load (10) is electrically connected to the corresponding second socket (9) on the short-circuit test box (1); A short-circuit power supply (11) is provided. The power input terminal of the short-circuit power supply (11) is connected to the indoor power supply. One path of the short-circuit power supply (11) is connected to the positive Usmax interface (14) of the voltage source of the short-circuit test box (1). The other path of the short-circuit power supply (11) is connected to the negative Ground interface (15) of the voltage source of the short-circuit test box (1). The ground wire (12) of the short-circuit power supply (11) is connected to the negative wire of the sample power supply (3). The sample to be tested (2) is connected to one of the first sockets (8) of the short circuit test box (1) through two sets of test wires. The sample to be tested (2) is connected to the sample power supply (3) and is powered by the sample power supply (3).

2. The short-circuit testing device according to claim 1, characterized in that: The short-circuit test box (1) is also equipped with a fuse (5).

3. The short-circuit testing device according to claim 1, characterized in that: The test lead group includes a first test lead group (6) and a second test lead group (7), and each of the first test lead group (6) and the second test lead group (7) is connected to the corresponding socket hole of the first socket (8) by one or more test leads.

4. The short-circuit testing device according to claim 1, characterized in that: The short-circuit power supply (11) is connected to the positive voltage source Usmax interface (14) of the short-circuit test box (1) via the positive voltage source line (4), and the short-circuit power supply (11) is connected to the negative voltage source Ground interface (15) of the short-circuit test box (1) via the negative voltage source line (16).

5. The short-circuit testing device according to claim 1, characterized in that: The number of the first socket (8) and the second socket (9) are both 12, and the number of the single-pole double-throw switch (13) is 12. Each single-pole double-throw switch (13) corresponds to a set of sockets. The first socket (8) and the second socket (9) are each arranged in two rows, with six sockets in each row.

6. The short-circuit testing device according to claim 1, characterized in that: Both the first socket (8) and the second socket (9) are 4mm banana-shaped sockets.

7. The short-circuit testing device according to claim 1, characterized in that: The short-circuit test box (1) is also equipped with a fuse indicator light, which is lit when the fuse (5) is working normally.

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