An inductor performance test apparatus

Abstract

The utility model provides a kind of inductor performance test equipment, belong to inductor test technical field;Including inductance tester, further include: protection assembly, the protection assembly includes the mounting plate being installed in inductance tester top, the top of mounting plate is slidably connected with two protective covers, chuck is installed in protective cover, and chuck is electrically connected between inductance tester by orientation;When inductor test, two protective covers mutually adhere to, inductor is located inside two protective covers, chuck is clamped in the wiring end of inductor, after inductor test is completed, two protective covers separate.The utility model is by being provided with protective cover, when inductor test, two protective covers mutually adhere to, inductor is located inside two protective covers, chuck is clamped in the wiring end of inductor, if inductor exists quality problem and generates short circuit, the electric spark or arc generated can be shielded by protective cover, avoid electric spark or arc burn operator, realize the safety protection to operator.

Description

Technical Field

[0001] This utility model relates to the field of inductor testing technology, and in particular to an inductor performance testing device. Background Technology

[0002] An inductor is an electromagnetic induction element made of insulated wire. It converts electrical energy into magnetic energy for storage. In a circuit, it impedes alternating current but has relatively little resistance to direct current. Its characteristics are expressed by inductance. To confirm whether the inductor parameters meet the design or usage requirements, ensure its performance meets standards, avoid abnormal parameters affecting the normal operation of the circuit, and screen out unqualified products to ensure product quality and reliability, an inductance tester is needed to test the inductor. During testing, the inductance tester's clamps are attached to the inductor's terminals, and then the inductance tester is started. The test results are displayed on the inductance tester's screen.

[0003] When an inductor is being tested, if there is a quality problem, the inductor may short-circuit. When an inductor short-circuits, the large current may cause electric sparks or arcs to be generated at the test terminals and clamp contacts, which may burn the operators. The risk of arcing is even higher in high-voltage test scenarios. Therefore, this application provides an inductor performance testing device to meet the needs. Utility Model Content

[0004] This invention provides an inductor performance testing device to solve the problem of electric sparks or arcs burning operators when an inductor is short-circuited.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An inductor performance testing device includes an inductance tester, and further includes:

[0007] The protective assembly includes a mounting plate installed on the top of the inductance tester. Two protective covers are slidably connected to the top of the mounting plate. Clamps are installed inside the protective covers, and the clamps are electrically connected to the inductance tester via a guide.

[0008] During inductor testing, the two protective covers are fitted together, with the inductor located inside the two protective covers. The clamps are attached to the terminals of the inductor. After the inductor test is completed, the two protective covers are separated.

[0009] Preferably, the top of the mounting plate is provided with a guide adjustment assembly, which includes a fixed guide rod fixed to the top of the mounting plate, and a rotating guide rod at the end of the fixed guide rod. The fixed guide rod and the rotating guide rod are used for guiding the movement of the protective cover.

[0010] Preferably, a rotating shaft is fixed to the recessed part of the fixed guide rod, and a through groove is opened at the end of the rotating guide rod. A round hole is opened in the inner wall of the through groove. The rotating guide rod is rotatably connected to the surface of the rotating shaft through the round hole. A magnetic block is fixed at the end of the rotating guide rod. An iron plate is inlaid on the side of the protective cover. After the two protective covers are attached, the rotating guide rod rotates upward ninety degrees, and the magnetic block is magnetically attracted to the surface of the iron plate. At this time, the end of the magnetic block is higher than the top of the protective cover. When the two protective covers are separated, the magnetic block is magnetically attracted to the top of the mounting plate. At this time, the end of the magnetic block exceeds the edge of the mounting plate.

[0011] Preferably, the surface of the rotating shaft has a protrusion formed by opening a groove, and a positioning groove is opened on the inner wall of the circular hole. After the rotating guide rod rotates upward 90 degrees, the rotating guide rod moves downward and the protrusion is inserted into the positioning groove.

[0012] Preferably, the protective cover has an integrally formed protrusion with a cavity on its side. A power-off component is provided inside the protrusion. The power-off component includes a conductive ring fixed to the top of the inner wall of the cavity of the protrusion. A terminal is embedded in the surface of the protrusion. The terminal is electrically connected to the conductive ring through a wire. The terminal is electrically connected to an inductance tester. A vertical shaft is movably inserted through the top of the protrusion. The vertical shaft is located inside the conductive ring. A conductive plate is fixed at the bottom of the vertical shaft. The side of the conductive plate is slidably connected to the inner wall of the protrusion. A spring is engaged between the bottom of the conductive plate and the bottom of the inner wall of the protrusion. The conductive plate is electrically connected to a clamp through a wire. When the inductor is tested, the spring drives the conductive plate to adhere to the bottom of the conductive ring to supply power to the inductor. When the inductor test fails, the conductive plate moves downward, the conductive plate separates from the conductive ring, and the power supply to the inductor is disconnected.

[0013] Preferably, a pressing plate is fixed to the top of the vertical shaft.

[0014] Preferably, the end of the pressing plate is provided with a guide surface.

[0015] Preferably, the two pressing plates are staggered vertically. After the two protective covers are attached, pressing the upper pressing plate causes the two staggered pressing plates to move downwards synchronously.

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

[0017] In the above solution, by setting up protective covers, during inductor testing, the two protective covers are fitted together, with the inductor located inside the two protective covers. The clamps are attached to the terminals of the inductor. If the inductor has a quality problem and causes a short circuit, the resulting electric sparks or arcs can be blocked by the protective covers, preventing electric sparks or arcs from burning the operators and achieving safety protection for the operators. After the inductor test is completed, the two protective covers are separated. When the inductor tester is not in use, the power cord and other equipment can be placed inside the two protective covers to prevent the power cord and other equipment from being lost.

[0018] By setting up a guide adjustment component, after the two protective covers are attached, the rotating guide rod rotates upward 90 degrees, and the magnetic block is magnetically attracted to the surface of the iron plate. The upward rotation of the guide rod can limit the protective cover, preventing the two protective covers from separating during inductor testing and ensuring the protective capability of the protective cover. At the same time, the end of the magnetic block is higher than the top of the protective cover, and the part that extends beyond the protective cover can act as a handle, making it easier to separate the magnetic block from the iron plate. When the two protective covers are separated, the magnetic block is magnetically attracted to the top of the mounting plate. At this time, the magnetic block can prevent the rotating guide rod from tilting upward, ensuring the guiding capability of the rotating guide rod and the fixed guide rod for the protective cover. At this time, the end of the magnetic block extends beyond the edge of the mounting plate, and the magnetic block extending beyond the edge of the mounting plate also acts as a handle, making it easy to tilt the magnetic block upward.

[0019] By setting up a power-off component, when an inductor test fails, pressing down on the vertical shaft will cause the conductive plate to detach from the conductive ring. After the conductive plate separates from the conductive ring, the electrical connection between the inductor tester and the inductor is broken, thereby further preventing electric sparks or arcs from the inductor from burning the operator and further improving the overall safety protection capability.

[0020] By setting up a pressing plate, after the two protective covers are attached, pressing the upper pressing plate will cause the two vertically misaligned pressing plates to move downwards synchronously. This allows the two clamps to be de-energized at the same time, further improving the overall safety protection capability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the protective component structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the power-off component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the rotating guide rod structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure at the rotating shaft of this utility model.

[0026] In the diagram: 1. Inductance tester; 2. Protective component; 3. Protective cover; 4. Guide adjustment component; 5. Fixed guide rod; 6. Rotating guide rod; 7. Rotating shaft; 8. Groove; 9. Positioning groove; 10. Magnetic block; 11. Clamp; 12. Power-off component; 13. Vertical shaft; 14. Terminal block; 15. Conductive ring; 16. Conductive plate; 17. Spring; 18. Protrusion; 19. Pressing plate.

[0027] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0028] The inductor performance testing device provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0029] like Figures 1-5 As shown, an embodiment of this utility model provides an inductor performance testing device, including an inductance tester 1, and further comprising:

[0030] The protective component 2 includes a mounting plate installed on the top of the inductance tester 1. Two protective covers 3 are slidably connected to the top of the mounting plate. A clamp 11 is installed inside the protective cover 3. The clamp 11 is electrically connected to the inductance tester 1 through a guide.

[0031] During inductor testing, two protective covers 3 are fitted together, with the inductor located inside. Clamps 11 are used to clamp the inductor's terminals. After testing, the two protective covers 3 separate. The inductance tester 1 is used to detect parameters such as the inductance value and quality factor of the inductor. The two protective covers 3 are made of insulating transparent material, such as acrylic, and form a closed space after being fitted together, completely enclosing the inductor. If the inductor short-circuits due to quality issues during testing, generating sparks or arcs, the protective covers 3 can effectively block the flying sparks and high-temperature arcs, preventing burns to operators and significantly improving testing safety. Clamps 11 can firmly hold the inductor terminals, ensuring good conductivity during testing. After testing, the protective covers 3 separate, facilitating the removal and disposal of the inductor. When not in use, the protective covers 3 can be closed to store the power cord, preventing loss and combining protection and storage functions.

[0032] like Figure 4 and Figure 5As shown in this embodiment, a guide adjustment assembly 4 is provided on the top of the mounting plate. The guide adjustment assembly 4 includes a fixed guide rod 5 fixed to the top of the mounting plate and a rotating guide rod 6 provided at the end of the fixed guide rod 5. The fixed guide rod 5 and the rotating guide rod 6 are used to guide the movement of the protective cover 3. The fixed guide rod 5 and the rotating guide rod 6 cooperate to provide a precise guide trajectory for the sliding of the protective cover 3, ensuring that the two protective covers 3 can fit together or separate smoothly, and avoiding incomplete closure or jamming due to offset.

[0033] like Figure 4 and Figure 5 As shown, in this embodiment, a rotating shaft 7 is fixed to the recessed part of the fixed guide rod 5. A through groove is opened at the end of the rotating guide rod 6, and a round hole is opened in the inner wall of the through groove. The rotating guide rod 6 is rotatably connected to the surface of the rotating shaft 7 through the round hole. A magnetic block 10 is fixed at the end of the rotating guide rod 6. An iron plate is inlaid on the side of the protective cover 3. After the two protective covers 3 are attached, the rotating guide rod 6 rotates upward 90 degrees, and the magnetic block 10 is magnetically attracted to the surface of the iron plate. At this time, the end of the magnetic block 10 is higher than the top of the protective cover 3. When the two protective covers 3 are separated, the magnetic block 10 is magnetically attracted to the top of the mounting plate. At this time, the end of the magnetic block 10 exceeds the edge of the mounting plate. The rotating shaft 7 provides a rotation fulcrum for the rotating guide rod 6, so that... It can flexibly switch angles. After the protective cover 3 is attached, the rotating guide rod 6 rotates upward 90 degrees, and the magnetic block 10 is magnetically fixed to the iron plate on the side of the protective cover 3. This can limit the accidental separation of the protective cover 3, ensure that the protective space is closed during the test, and prevent sparks from leaking out. The top of the magnetic block 10 is higher than the protective cover 3, forming a handle, which makes it easy for the operator to apply force to separate the magnetic block 10 from the iron plate, resulting in a significant labor-saving effect. When the protective cover 3 is separated, the magnetic block 10 is magnetically attached to the top of the mounting plate, which can fix the rotating guide rod 6 in the guide position and prevent it from tilting upward and interfering with the sliding of the protective cover 3. The end of the magnetic block 10 extends beyond the edge of the mounting plate, also forming a handle, which makes it easy to rotate the rotating guide rod 6 upward, greatly improving the ease of operation.

[0034] like Figure 4 and Figure 5 As shown in this embodiment, the surface of the rotating shaft 7 has a protrusion formed by opening a groove 8, and a positioning groove 9 is opened on the inner wall of the round hole. After the rotating guide rod 6 rotates upward 90 degrees, the rotating guide rod 6 moves downward and the protrusion is inserted into the positioning groove 9. The insertion and cooperation between the protrusion and the positioning groove 9 can achieve mechanical locking after the rotating guide rod 6 completes a 90-degree rotation, avoiding the possible loosening of the magnetic block 10 which is fixed by magnetic force alone, and further ensuring that the protective cover 3 fits firmly.

[0035] like Figure 3As shown in this embodiment, the protective cover 3 has an integrally formed protrusion 18 with a cavity on its side. A power-off component 12 is disposed inside the protrusion 18. The power-off component 12 includes a conductive ring 15 fixed to the top of the inner wall of the cavity of the protrusion 18. A terminal post 14 is embedded in the surface of the protrusion. The terminal post 14 is electrically connected to the conductive ring 15 through a wire. The terminal post 14 is electrically connected to the inductance tester 1. A vertical shaft 13 is movably passed through the top of the protrusion 18. The vertical shaft 13 is located inside the conductive ring 15. A conductive plate 16 is fixed to the bottom end of the vertical shaft 13. The side of the conductive plate 16 is slidably connected to the inner wall of the protrusion 18. A spring 17 is engaged between the bottom of the conductive plate 16 and the bottom of the inner wall of the protrusion 18. The conductive plate 16 is electrically connected to the clamp 11 through a wire. When the inductor is tested, the spring 17 drives the conductive plate 16 to adhere to the bottom of the conductive ring 15. This system enables power supply to the inductor. When an inductor test fails, the conductive plate 16 moves downward, separating from the conductive ring 15 and disconnecting the power supply to the inductor. The power-off component 12 can quickly cut off the power supply when the inductor experiences short circuits, overloads, or other faults, preventing the continuous generation of electric sparks or arcs from the source. When the test is normal, the spring force of the spring 17 keeps the conductive plate 16 and the conductive ring 15 tightly fitted, ensuring stable current transmission and guaranteeing test accuracy. In case of a fault, the vertical shaft 13 is pushed downward, causing the conductive plate 16 to compress the spring 17 and separate from the conductive ring 15, forming a physical power-off. The enclosed cavity of the protrusion 18 protects the internal conductive components, preventing dust or accidental contact from affecting the power-off function and improving the safety and stability of the equipment. Both the protective cover 3 and the protrusion 18 are made of transparent acrylic material, allowing observation of the internal test conditions from the outside of the protective cover 3.

[0036] like Figures 1-3 As shown in this embodiment, a pressing plate 19 is fixed to the top of the vertical shaft 13. The pressing plate 19 increases the force application area of ​​the vertical shaft 13, allowing the operator to push the vertical shaft 13 with less effort. In particular, it can quickly trigger a power outage in an emergency, shortening the emergency response time.

[0037] like Figure 2 As shown in this embodiment, the end of the pressing plate 19 is provided with a guide surface. When the two pressing plates 19 approach each other, the guide surface guides the adjacent pressing plates 19, making the vertical misalignment of the adjacent pressing plates 19 smoother and avoiding jamming.

[0038] like Figure 2As shown in this embodiment, the two pressing plates 19 are staggered vertically. After the two protective covers 3 are attached, pressing the upper pressing plate 19 causes the two staggered pressing plates 19 to move downwards synchronously. The staggered design ensures that the two pressing plates 19 do not interfere with each other after the protective covers 3 are attached. At the same time, it allows one finger or one hand to press synchronously. When the upper pressing plate 19 moves downward, it will push the lower pressing plate 19 to move synchronously, so that the two power-off components 12 can cut off the power supply to the left and right clamps 11 at the same time, avoiding the safety hazards caused by incomplete power-off on one side. At the same time, the operator does not need to press the two pressing plates 19 separately, further shortening the power-off response time and ensuring operational safety.

[0039] Working principle: Rotate the rotating guide rod 6 through the rotating shaft 7 until it is in the same straight line as the fixed guide rod 5. The magnetic block 10 is magnetically attracted to the surface of the mounting plate, and the positioning groove 9 separates from the protrusion of the rotating shaft 7.

[0040] Place the inductor on the surface of the mounting plate and between the two protective covers 3. Clamp the clamp 11 on the terminal of the inductor and push the two protective covers 3 closer together until they fit together. Then rotate the rotating guide rod 6 upward 90 degrees so that the magnetic block 10 is magnetically attracted to the iron plate surface on the side of the protective cover 3. At the same time, move the rotating guide rod 6 downward so that the positioning groove 9 is inserted into the protruding surface of the rotating shaft 7 to limit the position of the protective cover 3.

[0041] At this time, in the power-off assembly 12, the spring 17 pushes the conductive plate 16 to adhere to the bottom of the conductive ring 15, and the inductance tester 1 is electrically connected to the clamp 11 through the terminal 14, the conductive ring 15, the conductive plate 16, and the inductance tester 1 is started to test the performance of the inductor.

[0042] If the inductor malfunctions during testing, press the upper press plate 19 to move the two vertically misaligned press plates 19 downwards simultaneously. The vertical shaft 13 pushes the conductive plate 16 to compress the spring 17 and separate it from the conductive ring 15, thus disconnecting the electrical connection between the inductance tester 1 and the inductor and preventing the generation of electric sparks or arcs.

[0043] After the test is completed, pull the magnetic block 10 upwards, and the positioning groove 9 will disengage from the protrusion on the surface of the rotating shaft 7. Then, rotate the rotating guide rod 6 downwards to separate it from the iron plate. Rotate the rotating guide rod 6 downwards to reset it, and the magnetic block 10 will be magnetically attracted to the top of the mounting plate again. Push the two protective covers 3 to separate and remove the inductor that has been tested. If the inductance tester 1 is not used for the time being, the power cord and other items can be placed inside the two protective covers 3, and then the protective covers 3 can be closed to prevent the power cord and other items from being lost.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An inductor performance testing device, comprising an inductance tester (1), characterized in that, Also includes: The protective component (2) includes a mounting plate installed on the top of the inductance tester (1), and two protective covers (3) are slidably connected to the top of the mounting plate. A clamp (11) is installed inside the protective cover (3), and the clamp (11) is electrically connected to the inductance tester (1) through a guide. During inductor testing, the two protective covers (3) are attached to each other, the inductor is located inside the two protective covers (3), and the clamp (11) is clamped on the terminals of the inductor. After the inductor test is completed, the two protective covers (3) are separated.

2. The inductor performance testing equipment according to claim 1, characterized in that, The top of the mounting plate is provided with a guide adjustment assembly (4), which includes a fixed guide rod (5) fixed to the top of the mounting plate and a rotating guide rod (6) at the end of the fixed guide rod (5). The fixed guide rod (5) and the rotating guide rod (6) are used to guide the movement of the protective cover (3).

3. The inductor performance testing equipment according to claim 2, characterized in that, A rotating shaft (7) is fixed to the recessed part of the surface of the fixed guide rod (5). A through groove is opened at the end of the rotating guide rod (6), and a round hole is opened in the inner wall of the through groove. The rotating guide rod (6) is rotatably connected to the surface of the rotating shaft (7) through the round hole. A magnetic block (10) is fixed at the end of the rotating guide rod (6). An iron plate is inlaid on the side of the protective cover (3). After the two protective covers (3) are attached, the rotating guide rod (6) rotates upward ninety degrees, and the magnetic block (10) is magnetically attracted to the surface of the iron plate. At this time, the end of the magnetic block (10) is higher than the top of the protective cover (3). When the two protective covers (3) are separated, the magnetic block (10) is magnetically attracted to the top of the mounting plate. At this time, the end of the magnetic block (10) exceeds the edge of the mounting plate.

4. The inductor performance testing equipment according to claim 3, characterized in that, The surface of the rotating shaft (7) has a protrusion formed by the groove (8) and the inner wall of the round hole has a positioning groove (9). After the rotating guide rod (6) is rotated upward by 90 degrees, the rotating guide rod (6) moves downward and the protrusion is inserted into the positioning groove (9).

5. The inductor performance testing equipment according to claim 1, characterized in that, The protective cover (3) has an integrally formed protrusion (18) with a cavity on its side. A power-off assembly (12) is provided inside the protrusion (18). The power-off assembly (12) includes a conductive ring (15) fixed to the top of the inner wall of the cavity of the protrusion (18). A terminal (14) is embedded in the surface of the protrusion. The terminal (14) and the conductive ring (15) are electrically connected by a wire. The terminal (14) is electrically connected to the inductance tester (1). A vertical shaft (13) is movably passed through the top of the protrusion (18). The vertical shaft (13) is located inside the conductive ring (15). A conductive plate (16) is fixed at the bottom. The side of the conductive plate (16) is slidably connected to the inner wall of the protrusion (18). A spring (17) is snapped between the bottom of the conductive plate (16) and the bottom of the inner wall of the protrusion (18). The conductive plate (16) is electrically connected to the clamp (11) through a wire. When the inductor is tested, the spring (17) drives the conductive plate (16) to adhere to the bottom of the conductive ring (15) to supply power to the inductor. When the inductor test fails, the conductive plate (16) moves downward and separates from the conductive ring (15), disconnecting the power supply to the inductor.

6. The inductor performance testing equipment according to claim 5, characterized in that, A pressing plate (19) is fixed to the top of the vertical shaft (13).

7. The inductor performance testing equipment according to claim 6, characterized in that, The end of the pressing plate (19) is provided with a guide surface.

8. The inductor performance testing equipment according to claim 6, characterized in that, The two pressing plates (19) are staggered vertically. After the two protective covers (3) are attached, the upper pressing plate (19) is pressed, so that the two staggered pressing plates (19) move downward synchronously.

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