Inductor testing device

Abstract

The utility model discloses a testing device of an inductor. The testing device comprises a testing mechanism. The testing mechanism comprises a mounting seat, a detection turntable, a testing tool and a detector; the detection turntable is mounted at the bottom of the mounting seat and rotates by taking the mounting seat as an axis; the number of the test tools is multiple, and the multiple test tools are circumferentially installed on the edge of the top of the detection rotating disc at intervals. In the test tool, the magnetic core detection column is electrically connected to the magnetic core current-conducting plate, the coil detection column is electrically connected to the coil current-conducting plate, and the cylinder detection column is electrically connected to the conductive supporting column, so that when an inductor to be detected is installed on the test tool, a probe only needs to press the magnetic core detection column, the coil detection column and the cylinder detection column; therefore, corresponding detection data can be conveniently, quickly and stably obtained, the stability of the detection data is improved on the premise that the electrical performance of the inductor is automatically detected, and the detection precision and reliability of the inductor are improved.

Description

Technical Field

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

[0002] An inductor is a component that converts electrical energy into magnetic energy and stores it. It generally consists of a magnetic core and a coil wound around the surface of the magnetic core. Inductors are used to impede changes in current. If there is no current flowing through the inductor, it will attempt to impede the current flow when the circuit is closed. If there is current flowing through the inductor, it will attempt to maintain a constant current when the circuit is open. It is also called a reactor.

[0003] After production, inductors need to undergo performance tests such as resistance and high voltage withstand. Usually, the two terminals of the test instrument are connected to the inductor manually. Due to the different force applied by the hand, the contact tightness between the terminals and the inductor varies, which may lead to unstable test data, low test accuracy and reliability, and time-consuming and labor-intensive operation.

[0004] In addition, existing technologies include schemes that utilize inductor testing mechanisms to automatically test the performance of inductors. These mechanisms primarily use probes to press on testing points such as the inductor's core, coil, or cylinder to test various electrical properties. While these mechanisms offer higher testing efficiency compared to manual testing, they still suffer from issues such as unstable test data, low accuracy, and low reliability.

[0005] This is mainly caused by the special winding structure of the inductor itself. Since the inductor coil is generally made of multiple turns of enameled copper wire wound in parallel, there are uneven pits between the copper wires on the surface of the coil. When the probe of the testing mechanism needs to contact and connect with the coil, the uneven surface can easily cause instability of the test data, resulting in technical problems of low test accuracy and reliability. Utility Model Content

[0006] The purpose of this invention is to provide a testing device for inductors, which improves the stability of the test data while realizing the automatic detection of the electrical performance of inductors, thereby improving the detection accuracy and reliability of inductors and overcoming the shortcomings of the prior art.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A testing device for an inductor, comprising a testing mechanism;

[0009] The testing mechanism includes a mounting base, a testing turntable, testing fixtures, and detectors. The testing turntable is mounted on the bottom of the mounting base and rotates about the mounting base as an axis. Multiple testing fixtures are provided and are circumferentially mounted on the top edge of the testing turntable at intervals. The testing fixtures are used to fix the inductor to be tested. Multiple detectors are provided and are circumferentially mounted on the mounting base. A probe is provided at the bottom of each detector, and the probe faces the upper surface of the testing turntable.

[0010] The testing fixture includes a testing platform, a support base, a conductive support column, a magnetic core testing column, a coil testing column, and a cylindrical column testing column;

[0011] The support base is protrudingly installed in the middle of the detection platform, and a coil conductive plate for contacting the coil of the inductor is protruding in the middle of the support base, and magnetic core conductive plates for contacting the magnetic core of the inductor are protruding at both ends of the support base.

[0012] The conductive support column is provided with four columns, which are protrudingly installed on the detection platform and evenly arranged around the support base. The top ends of the four conductive support columns are respectively used to abut against the four cylindrical columns of the inductor.

[0013] The magnetic core detection column, the coil detection column, and the cylindrical column detection column are all protrudingly mounted on the rear side of the detection platform, and are all used to abut against the probe; the magnetic core detection column is electrically connected to the magnetic core conductive plate, the coil detection column is electrically connected to the coil conductive plate, and the cylindrical column detection column is electrically connected to the conductive support column.

[0014] Preferably, the test fixture further includes an NTC signal receiving socket and an NTC detection column;

[0015] The NTC signal receiving socket is protrudingly mounted on the detection platform, and the NTC signal receiving socket is used to connect to the NTC temperature signal transmission line of the inductor;

[0016] The NTC detection post is protrudingly mounted on the rear side of the detection platform, and the NTC detection post is used to abut against the probe; the NTC detection post is electrically connected to the NTC signal receiving socket.

[0017] Preferably, the NTC detection post includes a first post and a second post, wherein the first post is electrically connected to an external terminal one of the NTC signal receiving socket, and the second post is electrically connected to an external terminal two of the NTC signal receiving socket.

[0018] Preferably, the conductive support column includes a support portion and an elastic telescopic portion integrally formed from top to bottom. The top end of the support portion is used to abut against the cylindrical part of the inductor, and the end of the elastic telescopic portion is installed on the detection platform.

[0019] Preferably, the testing fixture further includes a mounting plate, and the testing platform is mounted on the upper surface of the mounting plate;

[0020] The top edge of the testing turntable is provided with multiple mounting stations spaced apart circumferentially, and a testing fixture is detachably mounted to one of the mounting stations via the mounting plate.

[0021] Preferably, the installation station has a first installation through hole, and the surface of the installation plate has a second installation through hole, and the first installation through hole and the second installation through hole match each other;

[0022] After the mounting pin passes through the second mounting through hole and the first mounting through hole in sequence, the mounting plate is installed at the mounting station.

[0023] Preferably, the installation station is provided with a locking block, and the locking block is detachably installed on the inspection turntable, and the surface of the installation plate is provided with locking countersunk holes;

[0024] The shape of the locking block matches the shape of the locking countersunk hole, and the locking block is used to press the mounting plate against the detection platform.

[0025] Preferably, the magnetic core detection post is electrically connected to the magnetic core conductive plate via a wire, and the coil detection post is electrically connected to the coil conductive plate via a wire;

[0026] The cylindrical detection column is electrically connected to the conductive support column via a conductive sheet, and the conductive sheet is embedded in the upper surface of the detection platform.

[0027] Preferably, the NTC detection post is electrically connected to the NTC signal receiving socket via a wire.

[0028] Preferably, it also includes a marking mechanism, a feeding mechanism, and a transfer robot;

[0029] The testing mechanism, the marking mechanism, and the feeding mechanism are arranged sequentially along the transfer direction of the inductor, and all three are located within the transfer range of the transfer robot.

[0030] The transfer robot is used to move the inductor between the testing mechanism, the marking mechanism and the feeding mechanism. The marking mechanism is used to laser mark the inductor. The feeding mechanism includes a good product placement basket and a recycling basket.

[0031] The technical solution provided by this utility model can include the following beneficial effects:

[0032] 1. In the test fixture of this solution, the magnetic core detection column is electrically connected to the magnetic core conductive plate, the coil detection column is electrically connected to the coil conductive plate, and the cylindrical column detection column is electrically connected to the conductive support column. When the inductor to be tested is installed in the test fixture, the probe only needs to press the magnetic core detection column, the coil detection column, and the cylindrical column detection column to conveniently, quickly, and stably obtain the corresponding test data. Under the premise of realizing automatic detection of the electrical performance of the inductor, the stability of the test data is improved, thereby improving the detection accuracy and reliability of the inductor.

[0033] 2. The number and type of detectors in this solution can be set according to actual testing needs. When multiple detectors are set, they are distributed around the mounting base, which allows for the testing of multiple electrical properties of the inductor in one testing mechanism, thus improving the testing efficiency of the testing mechanism. Attached Figure Description

[0034] Figure 1 This is a top view of the test structure in a test device for an inductor according to this utility model.

[0035] Figure 2 This is a partial structural side view of a testing device for an inductor according to the present invention.

[0036] Figure 3 This is a top view of the testing fixture in the testing device for an inductor according to this utility model.

[0037] Figure 4 This is a side view of the testing fixture in a testing device for an inductor according to this utility model.

[0038] Wherein: Mounting base 1;

[0039] Inspection turntable 2, first mounting through hole 201, locking block 202;

[0040] Test fixture 3, test platform 31, conductive sheet 311, support base 32, coil conductive plate 321, magnetic core conductive plate 322, conductive support column 33, support part 331, elastic telescopic part 332, magnetic core detection column 34, coil detection column 35, cylindrical column detection column 36, NTC signal receiving socket 37, NTC detection column 38, mounting plate 39, second mounting through hole 391, locking countersunk hole 392;

[0041] Detector 4, Probe 41. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] This technical solution provides a testing device for inductors, including a testing mechanism;

[0044] The testing mechanism includes a mounting base 1, a detection turntable 2, a testing fixture 3, and a detector 4. The detection turntable 2 is mounted on the bottom of the mounting base 1 and rotates about the mounting base 1. Multiple testing fixtures 3 are provided and are circumferentially mounted on the top edge of the detection turntable 2 at intervals. The testing fixtures 3 are used to fix the inductor to be tested. Multiple detectors 4 are provided and are circumferentially mounted on the mounting base 1. A probe 41 is provided at the bottom of each detector 4 and faces the upper surface of the detection turntable 2.

[0045] The test fixture 3 includes a test platform 31, a support base 32, a conductive support column 33, a magnetic core test column 34, a coil test column 35, and a cylindrical column test column 36;

[0046] The support base 32 is protrudingly installed in the middle of the detection platform 31, and the middle of the support base 32 is provided with a coil conductive plate 321 for contacting the coil of the inductor, and the two ends of the support base 32 are provided with magnetic core conductive plates 322 for contacting the magnetic core of the inductor.

[0047] Four conductive support columns 33 are provided. The four conductive support columns 33 are protrudingly installed on the detection platform 31 and are evenly arranged around the support base 32. The top ends of the four conductive support columns 33 are respectively used to abut against the four cylindrical columns of the inductor.

[0048] The magnetic core detection post 34, the coil detection post 35, and the cylindrical column detection post 36 are all protrudingly mounted on the rear side of the detection platform 31, and the magnetic core detection post 34, the coil detection post 35, and the cylindrical column detection post 36 are all used to abut against the probe 41; the magnetic core detection post 34 is electrically connected to the magnetic core conductive plate 322, the coil detection post 35 is electrically connected to the coil conductive plate 321, and the cylindrical column detection post 36 is electrically connected to the conductive support post 33.

[0049] To improve the stability of inductor testing, this technical solution proposes an inductor testing device, such as... Figure 1-4As shown, a testing mechanism for testing the electrical performance of inductors is included, comprising a mounting base 1, a testing turntable 2, a testing fixture 3, and a detector 4. Specifically, the testing procedure of this solution is as follows: First, the inductor to be tested (not shown in the figure) is manually placed in the testing fixture 3; then, the inductor to be tested is rotated to be directly below the detector 4 using the testing turntable 2. The probe 41 of the detector 4 presses against any two or more of the core detection post 34, coil detection post 35, and cylinder detection post 36 in the testing fixture 3 as detection points, thereby achieving the relevant electrical performance between the corresponding detection points.

[0050] In the test fixture 3 of this scheme, the core detection post 34 is electrically connected to the core conductive plate 322, the coil detection post 35 is electrically connected to the coil conductive plate 321, and the cylindrical column detection post 36 is electrically connected to the conductive support post 33. When the inductor to be tested is installed in the test fixture 3, the inductor's coil contacts the coil conductive plate 321, thereby making the coil conductive and the coil detection post 35 conductive; the inductor's core contacts the core conductive plate 322, thereby making the core conductive and the core detection post 34 conductive; and the inductor's cylindrical column contacts the conductive support post 33, thereby making the cylindrical column conductive and the cylindrical column detection post 36 conductive. The probe 41 only needs to press the core detection post 34, the coil detection post 35, and the cylindrical column detection post 36 to conveniently, quickly, and stably obtain the corresponding test data. Under the premise of realizing automatic detection of the inductor's electrical performance, the stability of the test data is improved, thereby improving the detection accuracy and reliability of the inductor.

[0051] In one embodiment, the detector 4 of this solution can be a resistance detector. By pressing the two probes 41 of the resistance detector to the top of the coil detection post 35 and the cylindrical column detection post 36, respectively, the resistance value between the coil and the cylindrical column in the inductor can be detected. Similarly, the detector 4 of this solution can also be any one or more combinations of conventional electrical performance testing equipment such as resistance detectors, inductance detectors, and voltage detectors, without limitation. Furthermore, the number and type of detectors 4 in this solution can be set according to actual testing needs. When multiple detectors 4 are set, the multiple detectors 4 are distributed circumferentially along the mounting base 1, which can realize the testing of multiple electrical properties of the inductor in one testing mechanism, which is more conducive to improving the testing efficiency of the testing mechanism.

[0052] It should be noted that, to facilitate the mounting of inductors on power supply equipment, cylindrical posts (usually made of metal) with central openings are typically installed around the inductor. The through holes in the central part of these posts are used to pass through screws or bolts for mounting and securing the inductor. For ease of protection and installation, the cylindrical posts are generally connected to the inductor's core and coil via injection molding to ensure good electrical insulation. For a specific structural reference, see Chinese invention patent CN115769321A, "An Inductor with Temperature Detection."

[0053] Furthermore, the test fixture 3 also includes an NTC signal receiving socket 37 and an NTC detection post 38;

[0054] The NTC signal receiving socket 37 is protrudingly mounted on the detection platform 31, and the NTC signal receiving socket 37 is used to connect to the NTC temperature signal transmission line of the inductor.

[0055] The NTC detection post 38 is protrudingly mounted on the rear side of the detection platform 31, and the NTC detection post 38 is used to abut against the probe 41; the NTC detection post 38 is electrically connected to the NTC signal receiving socket 37.

[0056] Similarly, referring to the Chinese invention patent "An Inductor with Temperature Detection" with publication number CN115769321A, when a high-power inductor is working, the heating of the inductor coil and the internal magnetic core will cause the overall temperature of the inductor to rise. In order to accurately detect and control the working temperature of the inductor, it is also necessary to install temperature sensing devices such as thermistors on the surface of the inductor coil to realize the temperature detection of the inductor coil.

[0057] Therefore, in order to detect the operating temperature of the inductor, this solution also adds an NTC signal receiving socket 37 to the test fixture 3. By plugging the NTC temperature signal transmission line of the inductor into the NTC signal receiving socket 37, the NTC detection post 38 can be pressed by the probe 41 of the detector 4, thereby conveniently obtaining the temperature detection data of the inductor.

[0058] To further explain, the NTC detection post 38 includes a first post and a second post. The first post is electrically connected to an external terminal one of the NTC signal receiving socket 37, and the second post is electrically connected to an external terminal two of the NTC signal receiving socket 37.

[0059] To further explain, the conductive support column 33 includes a support portion 331 and an elastic telescopic portion 332 integrally formed from top to bottom. The top end of the support portion 331 is used to abut against the cylindrical part of the inductor, and the end of the elastic telescopic portion 332 is installed on the detection platform 31.

[0060] Furthermore, to avoid hard contact between the test fixture 3 and the inductor under test, which could damage the inductor, and to ensure conductivity between each test post of the test fixture 3 and the corresponding structure of the inductor, this solution also optimizes the structure of the conductive support post 33, such as... Figure 4 As shown, its lower column is configured as an elastic telescopic part 332, such as a spring.

[0061] Furthermore, the test fixture 3 also includes a mounting plate 39, and the testing platform 31 is mounted on the upper surface of the mounting plate 39;

[0062] The top edge of the testing turntable 2 is provided with multiple installation stations spaced apart circumferentially, and a testing fixture 3 is detachably installed at one of the installation stations via the mounting plate 39.

[0063] In addition, to facilitate the quick installation of the test fixture 3 on the inspection turntable 2, this solution also adds an installation plate 39 to the test fixture 3 and a matching installation station to the inspection turntable 2.

[0064] Furthermore, the test fixture 3 of this solution can be detachably installed on the test turntable 2 via the mounting plate 39, thereby facilitating the testing organization to test different inductor products and improving the versatility of the testing organization.

[0065] To further explain, the installation station is provided with a first installation through hole 201, and the surface of the installation plate 39 is provided with a second installation through hole 391, and the first installation through hole 201 and the second installation through hole 391 are matched with each other;

[0066] After the mounting pin passes through the second mounting through hole 391 and the first mounting through hole 201 in sequence, the mounting plate 39 is installed at the mounting station.

[0067] In one embodiment, this solution utilizes the assembly between the mounting pin (not shown in the figure) and the first mounting through hole 201 and the second mounting through hole 390 to achieve the detachable installation of the test fixture 3 on the test turntable 2. The structure is simple, convenient and quick.

[0068] To further explain, the installation station is provided with a locking block 202, and the locking block 202 is detachably installed on the detection turntable 2, and the surface of the mounting plate 39 is provided with a locking countersunk hole 392;

[0069] The shape of the locking block 202 matches the shape of the locking countersunk hole 392, and the locking block 202 is used to press the mounting plate 39 against the detection platform 31.

[0070] In another embodiment, this solution utilizes the assembly between the locking block 202 and the locking countersunk hole 392 to achieve the detachable installation of the test fixture 3 on the test turntable 2, which is simple in structure and convenient and quick.

[0071] To further explain, the magnetic core detection post 34 is electrically connected to the magnetic core conductive plate 322 via a wire, and the coil detection post 35 is electrically connected to the coil conductive plate 321 via a wire;

[0072] The cylindrical detection column 36 is electrically connected to the conductive support column 33 via a conductive sheet 311, and the conductive sheet 311 is embedded in the upper surface of the detection platform 31.

[0073] To further explain, the NTC detection post 38 is electrically connected to the NTC signal receiving socket 37 via a wire.

[0074] In one specific embodiment of this technical solution, the magnetic core detection post 34, the coil detection post 35, and the NTC detection post 38 can be electrically connected to their respective structures via wires, which is simple and convenient.

[0075] The cylindrical detection column 36 is electrically connected to the four conductive support columns 33 simultaneously through a conductive sheet 311 (such as a copper sheet) embedded on the upper surface of the detection platform 31. This can reduce the excessive number of wires on the test fixture 3, which would affect the installation stability of the inductor.

[0076] To elaborate further, it also includes a marking mechanism, a feeding mechanism, and a transfer robot;

[0077] The testing mechanism, the marking mechanism, and the feeding mechanism are arranged sequentially along the transfer direction of the inductor, and all three are located within the transfer range of the transfer robot.

[0078] The transfer robot is used to move the inductor between the testing mechanism, the marking mechanism and the feeding mechanism. The marking mechanism is used to laser mark the inductor. The feeding mechanism includes a good product placement basket and a recycling basket.

[0079] In another specific embodiment of this technical solution, the testing device also includes an identification mechanism, a feeding mechanism, and a transfer robot. The above mechanisms are all conventional structures that can achieve the corresponding functions, and will not be described in detail here, nor are they shown in the accompanying drawings.

[0080] Specifically, the testing device of this solution also includes the following steps: after the inductor completes the testing items of each detector 4 on the testing mechanism, it can be unloaded by a transfer robot (such as a gripper). In one specific embodiment, if the inductor passes all the tests on the testing mechanism, it can be moved to the marking machine by the transfer robot for laser marking, and then the transfer robot places the laser-marked inductor into the good product placement basket to wait for the next process; if the inductor fails any of the tests on the testing mechanism, it can be moved to the recycling basket by the transfer robot for recycling.

[0081] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0082] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0083] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0084] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0085] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0086] It should be noted that the terms "first," "second," etc., used 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 the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0087] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A testing device for an inductor, characterized in that: Including testing organizations; The testing mechanism includes a mounting base, a testing turntable, testing fixtures, and a detector; the testing turntable is mounted on the bottom of the mounting base and rotates about the mounting base as an axis; multiple testing fixtures are provided and are circumferentially mounted at intervals on the top edge of the testing turntable, and the testing fixtures are used to fix the inductor to be tested; The detector is provided in multiple ways, and the multiple detectors are circumferentially mounted on the mounting base. The bottom of the detector is provided with a probe, and the probe faces the upper surface of the detection turntable. The testing fixture includes a testing platform, a support base, a conductive support column, a magnetic core testing column, a coil testing column, and a cylindrical column testing column; The support base is protrudingly installed in the middle of the detection platform, and a coil conductive plate for contacting the coil of the inductor is protruding in the middle of the support base, and magnetic core conductive plates for contacting the magnetic core of the inductor are protruding at both ends of the support base. The conductive support column is provided with four columns, which are protrudingly installed on the detection platform and evenly arranged around the support base. The top ends of the four conductive support columns are respectively used to abut against the four cylindrical columns of the inductor. The magnetic core detection column, the coil detection column, and the cylindrical column detection column are all protrudingly mounted on the rear side of the detection platform, and are all used to abut against the probe; the magnetic core detection column is electrically connected to the magnetic core conductive plate, the coil detection column is electrically connected to the coil conductive plate, and the cylindrical column detection column is electrically connected to the conductive support column.

2. The inductor testing device according to claim 1, characterized in that: The test fixture also includes an NTC signal receiving socket and an NTC detection column; The NTC signal receiving socket is protrudingly mounted on the detection platform, and the NTC signal receiving socket is used to connect to the NTC temperature signal transmission line of the inductor; The NTC detection post is protrudingly mounted on the rear side of the detection platform, and the NTC detection post is used to abut against the probe; the NTC detection post is electrically connected to the NTC signal receiving socket.

3. The inductor testing device according to claim 2, characterized in that: The NTC detection post includes a first post and a second post. The first post is electrically connected to an external terminal one of the NTC signal receiving socket, and the second post is electrically connected to an external terminal two of the NTC signal receiving socket.

4. The inductor testing device according to claim 1, characterized in that: The conductive support column includes a support part and an elastic telescopic part integrally formed from top to bottom. The top end of the support part is used to abut against the cylindrical part of the inductor, and the end of the elastic telescopic part is installed on the detection platform.

5. The inductor testing apparatus according to claim 1, characterized in that: The testing fixture also includes a mounting plate, and the testing platform is mounted on the upper surface of the mounting plate; The top edge of the testing turntable is provided with multiple mounting stations spaced apart circumferentially, and a testing fixture is detachably mounted to one of the mounting stations via the mounting plate.

6. The inductor testing apparatus according to claim 5, characterized in that: The installation station is provided with a first installation through hole, and the surface of the installation plate is provided with a second installation through hole, and the first installation through hole and the second installation through hole are matched with each other; After the mounting pin passes through the second mounting through hole and the first mounting through hole in sequence, the mounting plate is installed at the mounting station.

7. The inductor testing apparatus according to claim 5, characterized in that: The installation station is equipped with a locking block, and the locking block is detachably installed on the inspection turntable. The surface of the mounting plate is provided with locking countersunk holes. The shape of the locking block matches the shape of the locking countersunk hole, and the locking block is used to press the mounting plate against the detection platform.

8. The inductor testing device according to claim 1, characterized in that: The magnetic core detection post is electrically connected to the magnetic core conductive plate via a wire, and the coil detection post is electrically connected to the coil conductive plate via a wire; The cylindrical detection column is electrically connected to the conductive support column via a conductive sheet, and the conductive sheet is embedded in the upper surface of the detection platform.

9. The inductor testing device according to claim 2, characterized in that: The NTC detection post is electrically connected to the NTC signal receiving socket via a wire.

10. The inductor testing apparatus according to claim 1, characterized in that: It also includes a marking mechanism, a feeding mechanism, and a transfer robot; The testing mechanism, the marking mechanism, and the feeding mechanism are arranged sequentially along the transfer direction of the inductor, and all three are located within the transfer range of the transfer robot. The transfer robot is used to move the inductor between the testing mechanism, the marking mechanism and the feeding mechanism. The marking mechanism is used to laser mark the inductor. The feeding mechanism includes a good product placement basket and a recycling basket.

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