Power supply ignition test device and method

Abstract

The embodiment of the invention provides a power supply ignition test device and method. The power supply ignition test device comprises a conduction member and a rotating member. The conduction member is configured to be electrically connected with a to-be-tested power supply. The rotating piece is configured to rotate relative to the conducting piece, and the rotating piece is provided with a conducting part and a non-conducting part at intervals in the rotating direction. When the rotating member rotates until the conduction part is in contact with the conduction member, the rotating member is electrically connected with the to-be-tested power supply through the conduction member. And when the rotating piece rotates until the non-conducting part is opposite to the conducting piece, the rotating piece is electrically disconnected with the power supply to be tested. Therefore, by arranging the rotating piece capable of rotating relative to the conducting piece and arranging the conducting parts and the non-conducting parts on the rotating piece at intervals, automatic and periodic switching of the on-off state of the power supply is achieved, manual switching is not needed, the testing efficiency is improved, safety risks such as electric shock and sparking splashing caused by manual operation errors are reduced, and the testing accuracy is improved. And the safety of the test process is improved.

Description

Technical Field

[0001] This application relates to the field of electrical arc detection technology, and in particular to a power supply arc testing device and method. Background Technology

[0002] A power supply is a component that provides electrical energy to electronic devices. Electronic devices are connected to an external power source through a power cord and a power plug at the end of the power cord.

[0003] In practical use, electronic devices are prone to arcing at the contact point between the plug and socket when the power plug is plugged in or unplugged, or when the connection between the power plug and socket is not secure. To ensure the reliability of the power supply and related equipment under such abnormal conditions, an arcing resistance test is usually performed to verify that they will not be damaged when arcing occurs.

[0004] Spark resistance testing is typically performed manually, with operators manually plugging and unplugging the power cord or creating loose connections to artificially induce sparking, then observing whether the power supply is damaged. This manual testing method is inefficient and poses safety hazards to the operators. Therefore, how to safely and efficiently conduct spark resistance testing on power supplies has become a technical problem that needs to be solved. Summary of the Invention

[0005] This application provides a power supply arcing test device and method, which can safely and efficiently perform arcing resistance tests on power supplies.

[0006] In a first aspect, embodiments of this application provide a power arcing testing device, comprising:

[0007] A conductive element, configured to be electrically connected to the power supply under test;

[0008] A rotating component is configured to rotate relative to a conductive component; the rotating component is provided with conductive and non-conductive portions spaced apart in the direction of rotation.

[0009] When the rotating part rotates to the point where the conductive part contacts the conductive part, the rotating part is electrically connected to the power supply under test through the conductive part;

[0010] When the rotating part rotates to the point where the non-conductive part is opposite to the conductive part, the rotating part is disconnected from the power supply under test.

[0011] In one possible implementation, the power arcing test device further includes an information acquisition unit and a controller, wherein the information acquisition unit is configured to acquire the arcing frequency of the power supply under test.

[0012] The controller is connected to the information acquisition device and is configured to determine the arcing risk of the power supply under test based on the arcing frequency of the power supply under test when the rotating part rotates within a preset speed for a preset time.

[0013] In one possible implementation, the rotating member has multiple non-conductive portions in the rotation direction;

[0014] The length of the non-conductive part in the rotation direction of the rotating member is the non-conductive length, and at least two non-conductive parts have different non-conductive lengths.

[0015] In one possible implementation, along the rotation direction of the rotating member, the conductive portion and the non-conductive portion are spaced apart in the circumferential direction of the rotating member;

[0016] The conductive element is located on the outer circumferential side of the rotating element, and when the rotating element rotates to the point where the conductive part contacts the conductive element, the conductive element abuts against the conductive element.

[0017] In one possible implementation, the side of the conductive part that is away from the center of the rotating member is the conductive surface, and the side of the non-conductive part that is away from the center of the rotating member is the non-conductive surface.

[0018] Both the conductive surface and the non-conductive part are formed on the circumferential outer wall of the rotating part.

[0019] In one possible implementation, the non-conductive surface is an insulating surface, and the distance between the non-conductive surface and the center of the rotating member is a first distance, and the distance between the conductive part and the center of the rotating member is a second distance, wherein the first distance is equal to the second distance;

[0020] The conductor is configured to always abut against the circumferential outer wall of the rotating component.

[0021] In one possible implementation, the power arcing test device further includes a fixed base and an elastic element. The fixed base is disposed on one side of the conductive element, and the elastic element is connected between the fixed base and the conductive element. The elastic element is configured to make the conductive element always tend to move toward the rotating element so that the rotating element always abuts against the circumferential outer wall of the rotating element.

[0022] In one possible implementation, the elastic element is a torsion spring, which has a first end and a second end. The first end is connected to a fixed base, and the second end is connected to a conductor. The torsion spring is always in a pre-tensioned state.

[0023] Secondly, this application provides a power arcing test method, which is applied to the power arcing test device in any of the above embodiments. The power arcing test device includes a conductive element and a rotating element.

[0024] The power supply arcing test method includes the following steps:

[0025] Connect the conductive element to the power supply under test;

[0026] The rotating component is controlled to rotate within a preset speed for a preset time, so that during the rotation, the rotating component can alternately switch between an electrically connected state and a disconnected state with the power supply under test through a conductive component.

[0027] Obtain the arcing frequency of the power supply under test, and determine the arcing risk of the power supply under test based on the arcing frequency.

[0028] In one possible implementation, the power arcing test device further includes an information acquisition unit and a controller;

[0029] Obtain the arcing frequency of the power supply under test, and determine the arcing risk of the power supply under test based on the arcing frequency, specifically including:

[0030] The power supply status is monitored in real time by information acquisition devices to collect the ignition frequency of the power supply under test within a preset time.

[0031] The controller acquires the arcing frequency of the power supply under test and determines the arcing risk of the power supply under test based on the arcing frequency.

[0032] The power arcing testing apparatus and method provided in this application include a conductive component and a rotating component. The conductive component is configured to be electrically connected to the power supply under test. The rotating component is configured to rotate relative to the conductive component, and has conductive and non-conductive portions spaced apart in the rotation direction. When the rotating component rotates to the point where the conductive portion contacts the conductive component, the rotating component is electrically connected to the power supply under test through the conductive component. When the rotating component rotates to the point where the non-conductive portion is opposite to the conductive component, the rotating component is electrically disconnected from the power supply under test. By setting a rotating component that can rotate relative to the conductive component and spaced conductive and non-conductive portions on the rotating component, automatic and periodic switching of the power supply's on / off state is achieved, eliminating the need for manual operation to switch the power supply on / off, thus improving testing efficiency. Furthermore, it eliminates the need for operators to approach the power arcing testing apparatus, reducing safety risks such as electric shock and sparking due to human error, and improving the safety of the testing process. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 Schematic diagram of the power arcing test device provided in the embodiments of this application Figure 1 ;

[0035] Figure 2 Schematic diagram of the power arcing test device provided in the embodiments of this application Figure 2 ;

[0036] Figure 3 A flowchart of a power arcing test method provided in an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10 - Power supply under test;

[0039] 100-Conductor;

[0040] 200 - Rotating component; 210 - Conductive part; 220 - Non-conductive part;

[0041] 300-Fixed base;

[0042] 400-Driver.

[0043] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0044] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of the embodiments of this application.

[0045] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0048] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0049] Unless otherwise stated, the term "multiple" means two or more.

[0050] A power supply is a component that provides electrical energy to electronic devices. Electronic devices are connected to an external power source through a power cord and a power plug at the end of the power cord.

[0051] In practical use, electronic devices are prone to arcing at the contact point between the plug and socket when the power plug is plugged in or unplugged, or when the connection between the power plug and socket is not secure. To ensure the reliability of the power supply and related equipment under such abnormal conditions, an arcing resistance test is usually performed to verify that they will not be damaged when arcing occurs.

[0052] Spark resistance testing is typically performed manually, with operators manually plugging and unplugging the power cord or creating loose connections to artificially induce sparking, then observing whether the power supply is damaged. This manual testing method is inefficient and poses safety hazards to the operators. Therefore, how to safely and efficiently conduct spark resistance testing on power supplies has become a technical problem that needs to be solved.

[0053] This application provides a power spark testing device and method. The power spark testing device includes a conductive element and a rotating element. The conductive element is configured to be electrically connected to the power supply under test. The rotating element is configured to rotate relative to the conductive element, and has conductive and non-conductive portions spaced apart in the rotation direction. When the rotating element rotates to the point where the conductive portion contacts the conductive element, the rotating element is electrically connected to the power supply under test through the conductive element. When the rotating element rotates to the point where the non-conductive portion is opposite to the conductive element, the rotating element is electrically disconnected from the power supply under test. By setting a rotating element that can rotate relative to the conductive element and having conductive and non-conductive portions spaced apart on the rotating element, automatic and periodic switching of the power supply on / off state is achieved, eliminating the need for manual operation to switch the power supply on / off, thus improving testing efficiency. Furthermore, it eliminates the need for operators to approach the power spark testing device, reducing safety risks such as electric shock and sparking due to human error, and improving the safety of the testing process.

[0054] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0055] Please refer to Figures 1 to 2 This application provides a power arcing test device, including a conductive element 100 and a rotating element 200. The conductive element 100 is configured to be electrically connected to the power supply 10 under test.

[0056] Specifically, the power supply under test 10 refers to the power input terminal of an electronic device (such as a household appliance, power adapter, etc.), which is used to connect to an external power supply system to obtain electrical energy.

[0057] The power supply under test 10 includes three connection terminals, corresponding to the live wire, neutral wire, and ground wire of the AC power supply system, respectively. The live wire is the energized conductor that carries the load current in the power supply circuit. The neutral wire is the conductor that connects to the neutral point on the power supply side to form the circuit. The ground wire is a protective conductor used to ground the metal casing of the equipment; it does not participate in normal power supply and conducts fault current to the ground to prevent electric shock in the event of equipment insulation failure.

[0058] In this embodiment, the conductive element 100 is electrically connected to the live wire of the power socket and to the live wire connection terminal of the power supply under test 10.

[0059] It is understandable that, since the ground wire is used for safety protection and needs to be continuously conductive, while the neutral wire has a potential close to the earth potential under normal circumstances, the power supply status of the power supply under test 10 can be directly controlled by controlling the on / off state of the live wire.

[0060] Specifically, the rotating member 200 is configured to rotate relative to the conductive member 100. The rotating member 200 has conductive portions 210 and non-conductive portions 220 spaced apart in the rotational direction. When the rotating member 200 rotates to the point where the conductive portion 210 contacts the conductive member 100, the rotating member 200 is electrically connected to the power supply 10 under test through the conductive member 100. When the rotating member 200 rotates to the point where the non-conductive portion 220 is opposite to the conductive member 100, the rotating member 200 is electrically disconnected from the power supply 10 under test.

[0061] In some embodiments, the rotating member 200 is a conductive disk, and the main body of the conductive disk forms a conductive portion 210. When at least one notch is provided on the circumferential edge of the conductive disk of the rotating member 200, the notch forms a non-conductive portion 220, and the portion of the conductive disk on which no insulating material is arranged forms a conductive portion 210. When the rotating member 200 rotates to the position where the notch corresponds to the conductive member 100, the conductive member 100 does not contact the notch, thereby disconnecting the rotating member 200 from the power supply 10 under test.

[0062] In other embodiments, insulating material may be spaced along the circumferential edge of the conductive disk to form a non-conductive portion 220, while the portion of the conductive disk without insulating material forms a conductive portion 210. When the rotating member 200 rotates to the position where the notch corresponds to the conductive member 100, the conductive member 100 comes into contact with the insulating material, thereby disconnecting the rotating member 200 from the power supply 10 under test.

[0063] In other embodiments, the rotating member 200 is an insulating disk made of insulating material. Conductive material is spaced along the circumferential edge of the insulating disk to form conductive portions 210, and portions of the insulating disk without conductive material form non-conductive portions 220. When the rotating member 200 rotates until the conductive material contacts the conductive member 100, the rotating member 200 is electrically connected to the power supply 10 under test through the conductive member 100. When the rotating member 200 rotates until the edge of the insulating disk contacts the conductive member 100, the rotating member 200 is electrically disconnected from the power supply 10 under test.

[0064] The conductive disk can be made of metals such as copper, aluminum, or their alloys. The insulating material can be plastic, ceramic, nylon, or other insulating materials with high resistivity and high strength. This embodiment does not impose any restrictions on this, and an appropriate choice can be made according to actual needs.

[0065] The power arcing test device provided in this embodiment, by setting a conductive component 100 and a rotating component 200, allows the conductive part 210 and the non-conductive part 220 on the rotating component 200 to alternately contact the conductive component 100, thereby realizing the switching of the electrical connection between the rotating component 200 and the power supply under test 10. This simulates the on / off changes of the power supply under test 10 due to plugging / unplugging, vibration, or switching during actual use, eliminating the need for manual operation of the power switch or plugging / unplugging connections. This not only improves testing efficiency but also eliminates the safety risks such as electric shock and arc burns that may be encountered during close-range manual operation, enhancing the safety and reliability of the testing process.

[0066] In this embodiment, the rotating component 200 rotates under the drive of the driving component 400. The driving component 400 can be a motor, such as a DC motor or a stepper motor. When the driving component 400 is a variable frequency motor, the controller can control the output speed of the variable frequency motor to change dynamically during operation by adjusting the frequency of the input motor.

[0067] The dynamic change in the rotational speed of the rotating component 200 can alter the frequency of circuit on / off switching, thereby simulating the unstable on / off states that the power supply under test 10 may encounter under complex actual operating conditions. Examples include changes in on / off frequency caused by changes in contact resistance due to a loose power plug, or intermittent on / off states caused by internal vibrations. By simulating this more realistic and varied usage scenario, the electrical stability and durability of the power supply under test 10 can be more comprehensively evaluated.

[0068] Please refer to Figures 1 to 2 In some embodiments, the power supply arcing test device further includes an information acquisition unit and a controller. The information acquisition unit is configured to acquire the arcing frequency of the power supply 10 under test. The controller is communicatively connected to the information acquisition unit and is configured to determine the arcing risk of the power supply 10 under test based on the arcing frequency when the rotating member 200 rotates within a preset speed for a preset time.

[0069] Specifically, the information acquisition device can be a high-speed camera, with its shooting direction aligned with the contact area between the conductive element 100 and the rotating element 200. During the test, the controller controls the rotating element 200 to rotate at a preset speed for a preset test duration. During this process, whenever there is a switching moment between the rotating element 200 and the power supply under test 10, if an arcing phenomenon occurs, the high-speed camera records the arcing event. The controller receives the image information from the high-speed camera and uses an image recognition algorithm to count the number of arcing events that occur within the preset test duration, i.e., the arcing frequency.

[0070] The controller compares the actual arcing frequency with a preset safety threshold. If the arcing frequency exceeds the safety threshold, the controller determines that the power supply under test 10 has a high arcing risk, which may indicate poor contact, weak insulation, or other hidden dangers, and the power supply under test 10 is deemed unqualified. If the arcing frequency is within the safety threshold, the controller determines that the arcing risk is controllable, and the power supply under test 10 is deemed qualified.

[0071] Meanwhile, the power spark test device can also test the spark resistance performance of the power supply 10 under test.

[0072] It is understandable that arc resistance refers to whether the electrical performance and structural integrity of the power supply under test 10 undergo unacceptable changes or damage after being subjected to an arc or spark impact generated by switching on and off.

[0073] After the test, the controller can control the information acquisition unit to take pictures of the power terminals and surrounding area, and compare the images with the baseline images before the test. Through image analysis, it can detect whether there are physical damage traces caused by arcing, such as terminal metal ablation, material carbonization, insulation layer breakdown, etc. If physical damage or electrical parameter deterioration that exceeds the allowable range is detected, the controller determines that the arcing resistance performance of the power supply under test 10 is unqualified, that is, it has been damaged under arcing impact.

[0074] Alternatively, after conducting the spark test, the power supply can be manually inspected for damage. Operators can visually inspect the power terminals for physical damage such as burning, melting, or discoloration, or manually measure electrical parameters such as insulation resistance and continuity resistance using instruments such as a multimeter, and compare these measurements with the recorded values ​​before the test to determine whether the spark resistance performance of the power supply 10 under test is up to standard.

[0075] Please refer to Figures 1 to 2 In some embodiments, the rotating member 200 has a plurality of non-conductive portions 220 in the rotation direction. The length of the non-conductive portions 220 in the rotation direction of the rotating member 200 is a non-conductive length, and at least two non-conductive portions 220 have different non-conductive lengths.

[0076] In this embodiment, a plurality of non-conductive portions 220 are arranged at intervals along the circumference of the rotating member 200, and each non-conductive portion 220 has a different non-conductive length.

[0077] Because the non-conductive lengths of the non-conductive parts 220 are different, the time required for the non-conductive parts 220 to pass the position of the conductive part 100 is also different when the rotating part 200 rotates at a constant speed. Correspondingly, the time required for the conductive parts 210 between the two non-conductive parts 220 to pass the position of the conductive part 100 is also different. In this way, within one complete rotation cycle of the rotating part 200, the switching between the on and off states of the circuit will produce a variety of on-time and off-time periods of different durations. This is closer to the irregular on-time and off-time situations that the power supply may encounter in actual complex usage scenarios, such as intermittent on-time due to poor contact, or non-uniform on-time and off-time intervals caused by mechanical switch jitter. This allows for more random and realistic electrical arcing tests on the power supply 10 under test, thereby providing a more comprehensive evaluation of the arcing resistance performance of the power supply 10 under test.

[0078] It should be noted that the non-conductive length of the non-conductive part 220 can gradually decrease or gradually increase along the circumferential direction of the rotating member 200, or it can be arranged irregularly. This embodiment does not impose any restrictions on this, and an adaptive selection can be made according to actual needs.

[0079] Please refer to Figures 1 to 2 In some embodiments, along the rotation direction of the rotating member 200, the conductive portion 210 and the non-conductive portion 220 are spaced apart in the circumferential direction of the rotating member 200. The conductive member 100 is disposed on the outer circumferential direction of the rotating member 200, and when the rotating member 200 rotates to the point where the conductive portion 210 contacts the conductive member 100, the conductive member 100 abuts against the conductive member 100.

[0080] Specifically, when the non-conductive part 220 is a notch, when the rotating member 200 rotates to the notch position and is opposite to the conductive member 100, there is a gap between the edges of the conductive member 100 and the rotating member 200, and no contact occurs, thereby disconnecting the electrical connection between the rotating member 200 and the power supply under test 10. When the rotating member 200 continues to rotate, and the conductive part 210 rotates to the position opposite to the conductive member 100, the conductive member 100 abuts against the rotating member 200, and an electrical connection is established between the rotating member 200 and the power supply under test 10.

[0081] When the non-conductive portion 220 is an insulating material covering the circumferential edge of the rotating member 200, the conductive member 100 is always in contact with the circumferential edge of the rotating member 200. When the rotating member 200 rotates and the non-conductive portion 220 rotates to a position opposite to the conductive member 100, current cannot pass through, and the rotating member 200 is disconnected from the power supply 10 under test. When the rotating member 200 rotates to a position opposite to the conductive portion 210 and the conductive member 100, the conductive member 100 is in direct contact with the conductive material, and an electrical connection is established between the rotating member 200 and the power supply 10 under test.

[0082] With the continuous rotation of the rotating member 200, the conducting part 210 and the non-conducting part 220 can pass through and interact with the conducting member 100 in a cyclical and alternating manner, thereby realizing the switching of the circuit between the two states of conduction and disconnection.

[0083] Please refer to Figures 1 to 2 In some embodiments, the side of the conductive portion 210 facing away from the center of the rotating member 200 is a conductive surface, and the side of the non-conductive portion 220 facing away from the center of the rotating member 200 is a non-conductive surface. Both the conductive surface and the non-conductive portion 220 are formed on the circumferential outer wall of the rotating member 200.

[0084] Specifically, in this embodiment, the conductive element 100 and the circumferential outer wall of the rotating element 200 remain in contact at all times. When the rotating element 200 rotates, and the conductive surface of the circumferential outer wall of the rotating element 200 rotates to a position where it contacts the conductive element 100, the conductive element 100 directly contacts the conductive surface, forming a conductive path. When the non-conductive surface of the circumferential outer wall of the rotating element 200 rotates to a position where it contacts the conductive element 100, a conductive path cannot be formed between the conductive element 100 and the non-conductive surface. In this way, as the rotating element 200 continues to rotate, the circuit can switch between the on and off states.

[0085] Please refer to Figures 1 to 2 In some embodiments, the non-conductive surface is an insulating surface, and the distance between the non-conductive surface and the center of the rotating member 200 is a first distance, and the distance between the conductive portion 210 and the center of the rotating member 200 is a second distance, the first distance being equal to the second distance. The conductive member 100 is configured to always abut against the circumferential outer wall of the rotating member 200.

[0086] Specifically, when the first distance between the non-conductive surface and the center of the rotating component 200 is equal to the second distance between the conductive surface and the center of the rotating component 200, the rotating component 200 has a circular structure. Thus, when the rotating component 200 rotates around its own center, the conductive component 100 will not be pushed away due to the radial change of the rotating component 200, thereby maintaining constant contact with the outer wall of the rotating component 200 and ensuring the effectiveness of the electric arc test.

[0087] Please refer to Figures 1 to 2In some embodiments, the power arcing test device further includes a fixed base 300 and an elastic element. The fixed base 300 is disposed on one side of the conductive element 100, and the elastic element is connected between the fixed base 300 and the conductive element 100. The elastic element is configured to ensure that the conductive element 100 always tends to move towards the rotating element 200, so that the rotating element 200 always abuts against the circumferential outer wall of the rotating element 200. This allows the conductive element 100 to be pressed firmly onto the rotating element 200 with a certain pressure. When the rotating element 200 rotates or experiences slight radial runout due to manufacturing tolerances, the elastic element can undergo corresponding elastic deformation, thereby continuously pressing the conductive element 100 onto the rotating element 200, ensuring that the conductive element 100 and the rotating element 200 always maintain contact, and avoiding inaccurate test results due to the conductive element 100 losing contact with the rotating element 200.

[0088] Please refer to Figures 1 to 2 In some embodiments, the elastic element is a torsion spring, which has a first end and a second end. The first end is connected to the fixed base 300, and the second end is connected to the conductor 100. The torsion spring is always in a pre-tensioned state.

[0089] Specifically, the conductor 100 is rotatably connected to the fixed base 300, and a torsion spring is coaxially threaded through the shaft between the conductor 100 and the fixed base 300. During installation, an initial torque can be applied to the torsion spring to put it in a pre-tensioned state, thereby driving the conductor 100 to rotate around the fixed base 300. This ensures that the conductor 100 is pressed against the circumferential outer wall of the rotating component 200 under the force of the torsion spring, guaranteeing that the conductor 100 and the rotating component 200 always maintain contact and avoiding inaccurate test results due to the conductor 100 and the rotating component 200 losing contact.

[0090] In some embodiments, the conductor 100 may also abut against the upper surface of the rotating member 200. In this case, the elastic member is a spring, with one end connected to the fixed base 300 and the other end connected to the conductor 100, and the spring is in a compressed state. The compressed spring generates a continuous elastic force, thereby pressing the conductor 100 against the upper surface of the rotating member 200.

[0091] Please refer to Figures 1 to 3 This application also provides a power arcing test method, which is applied to the power arcing test device in any of the above embodiments. The power arcing test device includes a conductive element 100 and a rotating element 200.

[0092] The power supply arcing test method includes the following steps:

[0093] S1, connect the conductive element 100 to the power supply 10 under test.

[0094] Specifically, the live wire contact of the power socket is connected to the conductor 100, and the conductor 100 is connected to the live wire input terminal of the power supply under test 10, thereby connecting the live wire path of the power supply circuit to the power arcing test device.

[0095] S2, control the rotating component 200 to rotate within a preset speed for a preset time, so that the rotating component 200 can alternately switch between an electrically connected state and a disconnected state with the power supply 10 under test through the conductive component 100 during the rotation process.

[0096] Specifically, the rotating component 200 can rotate under the drive of the driving component 400, such as a motor or a variable frequency motor. By controlling the rotating component 200 to rotate within a preset speed for a preset time, the conductive part 210 and the non-conductive part 220 on the rotating component 200 alternately pass through the position that contacts the conductive component 100, thereby periodically establishing and disconnecting the electrical connection, so that the power supply 10 under test can automatically and repeatedly switch between the energized state and the de-energized state.

[0097] S3, obtain the arcing frequency of the power supply under test 10, and determine the arcing risk of the power supply under test 10 based on the arcing frequency.

[0098] Specifically, by setting a conductive element 100 and a rotating element 200, the conductive part 210 and the non-conductive part 220 on the rotating element 200 alternately contact the conductive element 100, thereby realizing the switching of the electrical connection between the rotating element 200 and the power supply under test 10. This simulates the on / off changes of the power supply under test 10 due to plugging, vibration or switching during actual use. Therefore, based on the arcing frequency of the power supply under test 10, it can be determined whether the arcing risk of the power supply under test 10 is within a safe range.

[0099] Please refer to Figures 1 to 2 In some embodiments, the power arcing test device also includes an information acquisition unit and a controller.

[0100] S3, acquire the arcing frequency of the power supply under test 10, and determine the arcing risk of the power supply under test 10 based on the arcing frequency, including:

[0101] S31 monitors the power supply status in real time through the information acquisition device to collect the ignition frequency of the power supply under test 10 within a preset time.

[0102] S32, the controller acquires the arcing frequency of the power supply under test 10, and determines the arcing risk of the power supply under test 10 based on the arcing frequency of the power supply under test 10.

[0103] Specifically, the information acquisition device can be a high-speed camera, with its shooting direction aligned with the contact area between the conductive element 100 and the rotating element 200. During the test, the controller controls the rotating element 200 to rotate at a preset speed for a preset test duration. During this process, whenever there is a switching moment between the rotating element 200 and the power supply under test 10, if an arcing phenomenon occurs, the high-speed camera records the arcing event. The controller receives the image information from the high-speed camera and uses an image recognition algorithm to count the number of arcing events that occur within the preset test duration, i.e., the arcing frequency.

[0104] The controller compares the actual arcing frequency with a preset safety threshold. If the arcing frequency exceeds the safety threshold, the controller determines that the power supply under test 10 has a high arcing risk, which may indicate poor contact, weak insulation, or other hidden dangers, and the power supply under test 10 is deemed unqualified. If the arcing frequency is within the safety threshold, the controller determines that the arcing risk is controllable, and the power supply under test 10 is deemed qualified.

[0105] Meanwhile, the power spark test device can also test the spark resistance performance of the power supply 10 under test.

[0106] It is understandable that arc resistance refers to whether the electrical performance and structural integrity of the power supply under test 10 undergo unacceptable changes or damage after being subjected to an arc or spark impact generated by switching on and off.

[0107] After the test, the controller can control the information acquisition unit to take pictures of the power terminals and surrounding area, and compare the images with the baseline images before the test. Through image analysis, it can detect whether there are physical damage traces caused by arcing, such as terminal metal ablation, material carbonization, insulation layer breakdown, etc. If physical damage or electrical parameter deterioration that exceeds the allowable range is detected, the controller determines that the arcing resistance performance of the power supply under test 10 is unqualified, that is, it has been damaged under arcing impact.

[0108] Alternatively, after conducting the spark test, the power supply can be manually inspected for damage. Operators can visually inspect the power terminals for physical damage such as burning, melting, or discoloration, or manually measure electrical parameters such as insulation resistance and continuity resistance using instruments such as a multimeter, and compare these measurements with the recorded values ​​before the test to determine whether the spark resistance performance of the power supply 10 under test is up to standard.

[0109] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A power supply arcing test device, characterized in that, include: A conductive element configured to be electrically connected to the power supply under test; A rotating component, the rotating component being configured to rotate relative to the conductive component; the rotating component having conductive and non-conductive portions spaced apart in the rotational direction; When the rotating member rotates to the point where the conductive part contacts the conductive member, the rotating member is electrically connected to the power supply under test through the conductive member; When the rotating member rotates to the point where the non-conductive part is opposite to the conductive part, the rotating member is disconnected from the power supply under test.

2. The power arcing test device according to claim 1, characterized in that, It also includes an information acquisition device and a controller, wherein the information acquisition device is configured to acquire the ignition frequency of the power supply under test; The controller is communicatively connected to the information acquisition device, and the controller is configured to determine the arcing risk of the power supply under test based on the arcing frequency of the power supply under test when the rotating component rotates within a preset speed for a preset time.

3. The power arcing test device according to claim 1, characterized in that, The rotating component has a plurality of non-conductive portions in the rotation direction; The length of the non-conductive part in the rotation direction of the rotating member is a non-conductive length, and at least two of the non-conductive parts have different non-conductive lengths.

4. The power arcing test device according to claim 1, characterized in that, Along the rotation direction of the rotating member, the conductive portion and the non-conductive portion are spaced apart on the circumferential direction of the rotating member; The conductive element is located on the circumferential outer side of the rotating element, and when the rotating element rotates to the point where the conductive part contacts the conductive element, the conductive element abuts against the conductive element.

5. The power arcing test device according to claim 4, characterized in that, The side of the conductive part that is away from the center of the rotating member is the conductive surface, and the side of the non-conductive part that is away from the center of the rotating member is the non-conductive surface. Both the conductive surface and the non-conductive portion are formed on the circumferential outer wall of the rotating component.

6. The power arcing test device according to claim 5, characterized in that, The non-conductive surface is an insulating surface, and the distance between the non-conductive surface and the center of the rotating component is a first distance, and the distance between the conductive part and the center of the rotating component is a second distance, wherein the first distance is equal to the second distance; The conductive element is configured to always abut against the circumferential outer wall of the rotating element.

7. The power arcing testing device according to any one of claims 1-6, characterized in that, It also includes a fixed base and an elastic element. The fixed base is disposed on one side of the conductive element, and the elastic element is connected between the fixed base and the conductive element. The elastic element is configured to make the conductive element always tend to move toward the rotating element so that the rotating element always abuts against the circumferential outer wall of the rotating element.

8. The power arcing test device according to claim 7, characterized in that, The elastic element is a torsion spring, which has a first end and a second end. The first end is connected to the fixed base, and the second end is connected to the conductive element. The torsion spring is always in a pre-tensioned state.

9. A method for testing power supply arcing, characterized in that, The power arcing test device as described in any one of claims 1-8, wherein the power arcing test device includes a conductive element and a rotating element; The power supply arcing test method includes the following steps: Connect the conductive element to the power supply under test; The rotating component is controlled to rotate within a preset speed for a preset time, so that during the rotation, the rotating component can alternately switch between an electrically connected state and a disconnected state with the power supply under test through the conductive component. The arcing frequency of the power supply under test is obtained, and the arcing risk of the power supply under test is determined based on the arcing frequency.

10. The power supply arcing test method according to claim 9, characterized in that, The power arcing test device also includes an information acquisition component and a controller; The step of acquiring the arcing frequency of the power supply under test and determining the arcing risk of the power supply under test based on the arcing frequency specifically includes: The power supply status is monitored in real time by the information acquisition device to collect the ignition frequency of the power supply under test within the preset time period. The controller acquires the arcing frequency of the power supply under test and determines the arcing risk of the power supply under test based on the arcing frequency.

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