Device for testing protection effect of surge protection device

Abstract

The utility model provides a testing device for the protection effect of a surge protection device. The testing device comprises a control unit and a testing unit, the control unit comprises a high-voltage generator, a discharge device and a line selection switch which are electrically connected in sequence, and the discharge device is connected with a test switch; the test unit comprises a test circuit connected with the output end of the circuit selection switch, and the test circuit comprises a first circuit electrically connected with the first to-be-detected SPD and the electronic equipment in sequence. When detection is carried out, a high-voltage pulse with a controllable size is input into the test circuit through the high-voltage discharge device, under the protection of the first to-be-detected SPD, the first circuit can still work normally, the SPD and the electronic equipment are intact, and the effectiveness of detecting the protection effect of the SPD under the condition that the SPD is intact is realized; by designing different detection circuits, the effectiveness of the SPD protection effect can be detected, the detection effects of the different detection circuits can be compared, and whether the SPD exists or not and the actual performance of the SPD with different qualities in use can be displayed.

Description

Technical Field

[0001] The utility model relates to the technical field of surge protector detection, and particularly relates to a device for testing the protection effect of a surge protector. Background Art

[0002] Surge protectors (SPDs) are widely used as protective devices in various electronic devices, mainly to prevent damage to devices caused by instantaneous high voltages in lightning or power systems. Before leaving the factory, surge protectors are usually sampled to detect the qualification of a batch of surge protectors. That is, from the products of this batch, a certain proportion of surge protectors are selected to conduct the detection of the limit voltage. If the withstand voltage can exceed the specified voltage limit, then the products of this batch are considered qualified. Since it is a random inspection of batch products, there may be unqualified products among those not sampled in this batch, so unqualified products may enter the market; and this type of detection is destructive and will damage the SPD products, so it is impossible to conduct destructive testing on all products in this batch. After users purchase SPD products, because the qualification of the products is inspected through sampling, they cannot exactly know whether the products are effective, and whether they have a protective effect on electrical appliances during use. If the products are subjected to destructive testing, then the products cannot be used. Therefore, for SPD users, it has become an urgent problem to detect whether the protective effect of the SPD on electrical appliances is effective while ensuring the integrity of the SPD. Content of the Utility Model

[0003] In order to solve the technical problem of how to detect whether the protection effect of the SPD is effective while ensuring the integrity of the SPD, the utility model provides a device for testing the protection effect of a surge protector, which can detect whether the SPD has a protection effect on electrical appliances while ensuring the integrity of the SPD.

[0004] The utility model provides the following specific solutions:

[0005] A device for testing the protection effect of a surge protector includes: a control unit and a test unit electrically connected to the control unit;

[0006] The control unit includes: a high-voltage generator, a discharge device, and a line selection switch that are electrically connected in sequence; the discharge device is connected to a test switch for controlling the discharge of the discharge device.

[0007] The test unit includes: a test line connected to the output end of the line selection switch, and the test line includes a first line, and the first line is electrically connected to a first SPD to be detected and a first electronic device in sequence.

[0008] Preferably, the test circuit further includes a second circuit and a third circuit connected in parallel with the first circuit. The second circuit is directly electrically connected to a second electronic device, and the third circuit is sequentially electrically connected to an external receiver-detection SPD and a third electronic device.

[0009] Preferably, the high-voltage generator includes an energy storage element and a timing device, wherein the energy storage element is capable of storing and releasing 2KA of impact energy.

[0010] Preferably, the high-voltage generator is equipped with a charging switch.

[0011] Preferably, the control unit further includes a voltmeter electrically connected to the high-voltage generator, the voltmeter displaying a maximum voltage of 2200 volts.

[0012] Preferably, the control unit further includes an emergency stop button electrically connected to the discharge device.

[0013] Preferably, the control unit further includes a power switch with a power indicator light that is electrically connected to the high-voltage generator, and the circuit selection switch is connected with circuit indicator lights corresponding to different test circuits.

[0014] Preferably, the first electronic device, the second electronic device, and the third electronic device are all light bulbs.

[0015] Preferably, the device has the following dimensions: 400mm*350mm*180mm and a weight of 20Kg.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides a surge protector (SPD) protection function testing device, comprising a control unit and a test unit connected to the control unit. The control unit includes a high-voltage generator, a discharge device, and a line selection switch connected in sequence, with the discharge device connected to a test switch. The test unit includes a test circuit connected to the output terminal of the line selection switch, comprising a first circuit connected in sequence to a first SPD under test and an electronic device. During testing, a high-voltage pulse of controllable magnitude is input to the test circuit through the discharge device. Under the protection of the first SPD under test, the first circuit can still operate normally, and the first electronic device is not damaged. The high-voltage generator can precisely control the generation of a 2KA surge energy, thus achieving the goal of testing the effectiveness of the SPD protection function while ensuring the SPD remains intact. This solves the technical problem of how to test the effectiveness of the SPD protection function while ensuring the SPD remains intact.

[0018] Specifically, the test circuit also includes a second and a third circuit connected in parallel with the first circuit. The first circuit is electrically connected to the first SPD under test and the first electronic device in sequence. The second circuit is directly connected to the second electronic device. The third circuit is electrically connected to the external SPD under test and the third electronic device in sequence. By designing three different types of test circuits, the effectiveness of the SPD's protection function can be tested, and the test results of different test circuits can be compared to demonstrate the actual performance of SPDs with and without and SPDs of different quality in use. Substandard external SPDs can also cause varying degrees of damage to electronic devices. They can only reduce the degree of damage but cannot play a real protective role.

[0019] In addition, by selecting the circuit to be tested using the circuit selection switch, the corresponding indicator light will flash to indicate the circuit. This design can clearly indicate the selected test circuit, improving the intuitiveness and accuracy of the operation.

[0020] In particular, the energy storage element and timing device in the high-voltage generator can generate a precisely controlled 2KA surge energy. This precise energy control can simulate real power surge events, better evaluate the performance of the SPD, and avoid damage to the SPD and equipment caused by over-testing.

[0021] In particular, the emergency stop button design increases the safety of the device. In an emergency, the operator can quickly stop the operation of the equipment to avoid injury to the equipment or personnel, providing a higher level of operational safety.

[0022] In particular, the electronic device is set as a light bulb, which not only makes it easy to observe the operation of the surge protector, but also reduces the complexity and cost of the detection equipment, while also having the advantage of intuitive display. Attached Figure Description

[0023] Figure 1 This is a circuit diagram of a surge protector protection function testing device provided by this utility model.

[0024] Figure 2 This is a panel layout diagram of the control unit of a surge protector protection function testing device provided by this utility model. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

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

[0028] Figure 1 This is a circuit diagram of a surge protector protection function testing device provided by this utility model. Figure 1 As shown, a surge protector protection function testing device includes: a control unit and a test unit electrically connected to the control unit;

[0029] The control unit includes: a high-voltage generator, a discharge device, and a line selection switch connected in sequence; the discharge device is connected to a test switch that controls the discharge device to discharge.

[0030] The test unit includes a test line connected to the output terminal of the line selection switch. The test line includes a first line, which is electrically connected in sequence to a first SPD to be tested and a first electronic device.

[0031] When testing the protective function of a surge protector, a high-voltage pulse of controllable magnitude is input to the test line through a discharge device. Under the protection of the first SPD under test, the first line can still work normally, and the first electronic equipment is not damaged. The high-voltage generator can precisely control the generation of 2KA impulse energy, thus realizing the detection of the effectiveness of the SPD protection while ensuring the integrity of the SPD. This solves the technical problem of how to detect the effectiveness of the SPD protection while ensuring the integrity of the SPD.

[0032] Specifically, the test circuit also includes a second circuit and a third circuit connected in parallel with the first circuit. The second circuit is directly electrically connected to the second electronic device, and the third circuit is sequentially electrically connected to an external receiver detection SPD and a third electronic device.

[0033] like Figure 1 As shown, in some embodiments, the test circuit further includes a second and a third circuit connected in parallel with the first circuit. The first circuit is sequentially connected to a first SPD to be tested and a first electronic device. The second circuit is directly connected to the second electronic device. The third circuit is sequentially electrically connected to an external SPD to be tested and a third electronic device. By selecting the test circuit, the effectiveness of the protection provided to electronic devices with and without an SPD, as well as SPDs of varying quality, can be compared. Without SPD protection, electronic devices will suffer severe damage, while devices protected by an SPD will remain intact. Furthermore, substandard SPDs can also cause varying degrees of damage to electronic devices, only mitigating the damage but failing to provide true protection.

[0034] Specifically, the high-voltage generator includes an energy storage element and a timing device, wherein the energy storage element is capable of storing and releasing 2KA of impact energy.

[0035] Specifically, the high-voltage generator is equipped with a charging switch.

[0036] Specifically, the control unit also includes a voltmeter electrically connected to the high-voltage generator, the voltmeter displaying a maximum voltage of 2200 volts.

[0037] like Figure 2 As shown, in some embodiments, the high-voltage generator is equipped with a charging switch and a voltmeter. The charging switch controls the start and end of charging, thereby controlling the magnitude of the voltage generated by the high-voltage generator, and the voltmeter displays the current voltage of the high-voltage generator. In the embodiments provided in this application, after the high-voltage generator is fully charged, the maximum voltage can reach 2200 volts, enabling the energy storage element to store and release 2KA of impact energy.

[0038] Specifically, the control unit also includes an emergency stop button electrically connected to the discharge device.

[0039] Specifically, the control unit also includes a power switch with a power indicator light that is electrically connected to the high-voltage generator, and the circuit selection switch is connected with circuit indicator lights corresponding to different test circuits.

[0040] like Figure 2 As shown, in some embodiments, the device is equipped with an emergency stop button. In case of improper operation or unexpected situations, the test can be terminated immediately by pressing the emergency stop button to avoid damage to the equipment or personnel and to provide a higher level of operational safety.

[0041] Specifically, the first electronic device, the second electronic device, and the third electronic device are all light bulbs.

[0042] Specifically, the device has the following dimensions: 400mm*350mm*180mm and a weight of 20Kg.

[0043] This embodiment can be operated according to the following procedure:

[0044] S1. Electrically connect the control unit and the test unit;

[0045] S2. Connect the power supply, press the power switch, the power indicator light will illuminate, and the device will be powered on;

[0046] S3. Select the test line to be tested using the line selection switch. The indicator light corresponding to the test line will flash, indicating that the electronic equipment on the test line is working normally.

[0047] S4. Turn on the charging switch. After charging is completed, the voltage reaches 2200 volts.

[0048] S5. Press the test switch to complete one test and observe whether the electronic device is normal.

[0049] S6. To perform the next test, repeat S3-S5.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A device for testing the protective function of a surge protector, characterized in that, Includes: a control unit and a test unit electrically connected to the control unit; The control unit includes: a high-voltage generator, a discharge device, and a line selection switch connected in sequence; the discharge device is connected to a test switch that controls the discharge device to discharge. The test unit includes a test circuit connected to the output terminal of the line selection switch. The test circuit includes a first circuit, which is electrically connected in sequence to a first SPD to be tested and a first electronic device.

2. The surge protector protection function testing device according to claim 1, characterized in that, The test circuit also includes a second circuit and a third circuit connected in parallel with the first circuit. The second circuit is directly electrically connected to the second electronic device, and the third circuit is sequentially electrically connected to an external receiver detection SPD and a third electronic device.

3. The surge protector protection function testing device according to claim 2, characterized in that, The first electronic device, the second electronic device, and the third electronic device are all light bulbs.

4. The surge protector protection function testing device according to claim 1, characterized in that, The high-voltage generator includes an energy storage element and a timing device.

5. The surge protector protection function testing device according to claim 4, characterized in that, The high-voltage generator is equipped with a charging switch.

6. A surge protector protection function testing device according to any one of claims 1-5, characterized in that, The control unit also includes a voltmeter electrically connected to the high-voltage generator.

7. The surge protector protection function testing device according to claim 6, characterized in that, The control unit also includes an emergency stop button electrically connected to the discharge device.

8. The surge protector protection function testing device according to claim 7, characterized in that, The control unit also includes a power switch with a power indicator light that is electrically connected to the high voltage generator, and the line selection switch is connected to line indicator lights corresponding to different test lines.

Images