Diode testing device

Abstract

The utility model discloses a diode testing device, which relates to the technical field of diodes and comprises a working table, a mounting seat is rotatably arranged on the working table, a plurality of groups of placing grooves are arranged on the mounting seat, a top cover is detachably mounted on the mounting seat, a plurality of groups of conductive terminals are mounted on the front side and the rear side of the top cover in a matched manner, and the conductive terminals are arranged in the placing grooves. A top frame is arranged above the mounting seat in a liftable manner, and a detection mechanism is fixedly mounted on the top frame. According to the design scheme of the utility model, the mounting seat is rotatably arranged on the workbench, the diode is fixed under the cooperation of the top cover and the mounting seat, the conductive terminal is in contact with the electrode of the diode, and the probe assembly is in contact with the conductive terminal for detection, so that the electrode of the diode is prevented from being damaged; and after the primary detection is completed, the probe assembly descends to perform secondary detection after the mounting seat integrally rotates by 180 degrees, so that the diode does not need to be manually placed again, and the detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diodes, in particular to a diode testing device. Background Art

[0002] As a common component in circuits, especially in control circuits, diodes are mainly composed of electrode parts at both ends and a PN junction part in the middle. When measuring a diode, it is mainly to verify whether it has the characteristic of single-direction conduction. Currently, when testing a diode, a multimeter needs to be connected to both ends of the diode respectively, and the positions of the two test leads need to be swapped. By applying positive voltage and reverse voltage, it is verified whether it is single-direction conduction. However, when measuring the current diode, it is very easy to damage the electrode parts on both sides, affecting the subsequent use of the diode.

[0003] CN 219349055 U discloses a diode testing device, including a base. The front end face of the base is fixedly connected with a concave-convex slideway, and the front end face of the concave-convex slideway is fixedly connected with a horizontal slide rail, etc. In the above diode testing device, by placing multiple diodes on the assembly block, the entire assembly block and the conductive rod are both extended parts of the diode electrodes, and the external end of the black test lead is directly connected to the conductive rod. In this way, one end electrode of the entire diode is all connected to the black test lead part of the multimeter. Then, the motor is driven to rotate the threaded rod, thereby driving the first slider, the spring rod, and the second slider to slide horizontally together, so that the second slider makes a front-back undulating motion effect on the surface of the concave-convex slideway, and the contact rod sequentially contacts the electrodes outside multiple diodes for detection, so as to achieve automatic detection without damaging the electrodes outside the diodes.

[0004] However, the above diode testing device requires manual flipping of the diodes on the assembly block for secondary detection, resulting in a cumbersome detection process for the diodes, affecting the detection efficiency, and the contact rod directly contacts the electrodes of the diode, and there is still a problem that the contact rod bends and deforms the electrodes of the diode. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a diode testing device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A diode testing device includes a workbench, on which a rotatable mounting seat is provided. A plurality of groups of placement grooves are formed in the mounting seat, and diodes are fitted and installed in the placement grooves. A top cover is detachably installed on the mounting seat. A plurality of groups of conductive terminals are fitted and installed on the front and rear sides of the top cover. The number of conductive terminals on the same side is the same as the number of placement grooves. A top frame is provided above the mounting seat in a liftable manner, and a detection mechanism is fixedly installed on the top frame. The detection mechanism includes a plurality of probe assemblies whose positions correspond to the conductive terminals.

[0007] Furthermore, the detection mechanism further includes a top plate fixedly installed on the top frame. A first connecting seat is fixedly installed on the top frame, and a plurality of indicator lights are fixedly installed on the first connecting seat. The number of indicator lights is the same as the number of placement grooves. A first conductive column and a second conductive column are fixedly installed inside the first connecting seat, and the first conductive column and the second conductive column are electrically connected to the electrodes of the indicator lights respectively.

[0008] Furthermore, a second connecting seat is provided on the side of the first connecting seat. The second connecting seat is fixedly installed on the top plate. A third conductive column is fixedly installed inside the second connecting seat. A power supply is fixedly installed on the top frame. The third conductive column is electrically connected to the positive electrode of the power supply, and the negative electrode of the power supply is electrically connected to the second conductive column.

[0009] Furthermore, the probe assembly includes a positive probe and a negative probe. The positive probe and the negative probe are respectively fixedly installed at the front and rear ends of the top plate. The positive probe is electrically connected to the first conductive column, and the negative probe is electrically connected to the third conductive column.

[0010] Furthermore, electric telescopic rods are fixedly installed at the four corner positions of the workbench. The power output ends of the electric telescopic rods are fixedly connected to the top frame. A turntable is rotatably installed on the top of the workbench. The mounting seat is fixedly installed on the turntable. A stepping motor for driving the turntable to rotate is fixedly installed on the side wall of the workbench. A worm and worm gear assembly is arranged inside the workbench.

[0011] Furthermore, positioning columns are provided at the left and right ends of the top of the mounting seat. Positioning holes matching the positioning columns are provided at the bottom of the top cover. The mounting seat and the top cover are connected to each other by buckles.

[0012] Furthermore, the conductive terminals are fixedly installed at the bottom of the top cover. An arc-shaped piece is provided at the bottom end of the conductive terminal. The size of the arc-shaped piece matches the electrode of the diode. A plug-in cylinder is provided at the top end of the arc-shaped piece.

[0013] The beneficial effects of the present utility model are as follows: Through the design of rotatably arranging a mounting seat on the workbench in the design scheme of the present utility model, the diode to be detected is placed on the mounting seat, and the diode is fixed under the cooperation of the top cover and the mounting seat. The conductive terminal is in contact with the electrode of the diode, and the detection is carried out by the probe assembly contacting the conductive terminal, thereby avoiding damage to the electrode of the diode. After one detection is completed, the entire mounting seat rotates 180 degrees and then the probe assembly descends for secondary detection, so that there is no need to manually re-place the diode, which is beneficial to improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below with reference to the drawings and embodiments.

[0015] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0016] Figure 2 Front view of the present utility model;

[0017] Figure 3 Right view of the present utility model;

[0018] Figure 4 is Figure 2 Schematic cross-sectional structure diagram in the A-A direction in

[0019] Figure 5 Schematic structure diagram of the mounting seat of the present utility model;

[0020] Figure 6 Schematic structure diagram of the top cover of the present utility model.

[0021] In the figure: 1. Workbench, 2. Mounting seat, 3. Placing groove, 4. Diode, 5. Top cover, 6. Conductive terminal, 61. Arc-shaped piece, 62. Insertion cylinder, 7. Top frame, 8. Top plate, 9. First connection seat, 10. Indicator light, 11. First conductive column, 12. Second conductive column, 13. Second connection seat, 14. Third conductive column, 15. Power supply, 16. Positive probe, 17. Negative probe, 18. Electric telescopic rod, 19. Turntable, 20. Stepper motor, 21. Positioning column, 22. Positioning hole, 23. Buckle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to more clearly illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the drawings. Obviously, the following described drawings are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments obtained based on this drawing and embodiment all fall within the protection scope of the present utility model.

[0023] According to Figures 1-6As shown in the figure, a diode testing device includes a workbench 1, on which a mounting base 2 is rotatably arranged. A plurality of groups of placement grooves 3 are formed in the mounting base 2, and diodes 4 are fitted and installed in the placement grooves 3. A top cover 5 is detachably installed on the mounting base 2. A plurality of groups of conductive terminals 6 are fitted and installed on the front and rear sides of the top cover 5. The number of the conductive terminals 6 on the same side is consistent with the number of the placement grooves 3. A top frame 7 is arranged above the mounting base 2 in a liftable manner, and a detection mechanism is fixedly installed on the top frame 7. The detection mechanism includes a plurality of probe assemblies whose positions correspond to the conductive terminals 6.

[0024] In this embodiment, the detection mechanism further includes a top plate 8 which is fixedly installed on the top frame 7. A first connection seat 9 is fixedly installed on the top frame 7. A plurality of groups of indicator lights 10 are fixedly installed on the first connection seat 9. The number of the indicator lights 10 is consistent with the number of the placement grooves 3. A first conductive column 11 and a second conductive column 12 are fixedly installed inside the first connection seat 9. The first conductive column 11 and the second conductive column 12 are electrically connected to the electrodes of the indicator lights 10 respectively. A second connection seat 13 is arranged on the side of the first connection seat 9, and the second connection seat 13 is fixedly installed on the top plate 8. A third conductive column 14 is fixedly installed inside the second connection seat 13. A power supply 15 is fixedly installed on the top frame 7. The third conductive column 14 is electrically connected to the positive pole of the power supply 15. The negative pole of the power supply 15 is electrically connected to the second conductive column 12. The probe assembly includes a positive probe 16 and a negative probe 17. The positive probe 16 and the negative probe 17 are respectively fixedly installed at the front and rear ends of the top plate 8. The positive probe 16 is electrically connected to the first conductive column 11, and the negative probe 17 is electrically connected to the third conductive column 14. The power cord of the power supply 15 is connected in parallel with each group of indicator lights 10. During detection, the probes are connected to the electrodes of the diode 4. When the diode 4 conducts, the indicator light 10 lights up, and when the diode 4 does not conduct, the indicator light 10 is in an extinguished state. Thus, it can be judged whether the currently detected diode 4 has the characteristic of unidirectional conduction according to the state of the indicator light.

[0025] In this embodiment, electric telescopic rods 18 are fixedly installed at the four corner positions of the workbench 1. The power output ends of the electric telescopic rods 18 are fixedly connected to the top frame 7. The top frame 7 is driven to rise or fall by the electric telescopic rods 18. A turntable 19 is rotatably installed on the top of the workbench 1, and the mounting base 2 is fixedly installed on the turntable 19. A stepping motor 20 for driving the turntable 19 to rotate is fixedly installed on the side wall of the workbench 1. A worm and worm gear assembly is arranged inside the workbench 1. The worm gear is connected to the rotating shaft of the turntable 19, and the worm is connected to the power output shaft of the stepping motor 20. The worm is driven to rotate by the stepping motor 20, and the turntable 19 rotates on the workbench 1 under the cooperation of the worm gear and the worm.

[0026] In this embodiment, positioning posts 21 are provided at the left and right ends of the top of the mounting base 2, positioning holes 22 matching the positioning posts 21 are provided at the bottom of the top cover 5, the mounting base 2 and the top cover 5 are connected to each other by a buckle 23, the conductive terminals 6 are fixedly installed at the bottom of the top cover 5, an arc-shaped piece 61 is provided at the bottom end of the conductive terminal 6, the size of the arc-shaped piece 61 matches the electrode of the diode 4, a plugging cylinder 62 is provided at the top end of the arc-shaped piece 61. When the top cover 5 is installed on the mounting base 2, the arc-shaped piece 61 contacts the electrode of the diode 4, and the positive probe 16 and the negative probe 17 are respectively inserted into the plugging cylinder 62, so that the probe is connected to the electrode of the diode 4 through the conductive terminal 6 for detection.

[0027] When the utility model is in use, the diodes 4 to be detected are sequentially installed in the placement grooves 3, and then the top cover 5 is buckled on the mounting base 2 to fix the diodes 4. The conductive terminals 6 are in contact with the electrodes of the diodes 4. The top frame 7 is driven to descend by the electric telescopic rod 18, so that the positive probe 16 and the negative probe 18 are respectively inserted into the plugging cylinder 62. The probe is connected to the electrode of the diode 4 through the conductive terminal 6, and the positive probe 16 is connected to the negative probe 17 through the diode 4. The staff can judge whether the diode 4 is conducting according to the state of the indicator lamp 10. After one detection is completed, the stepping motor 20 drives the turntable 19 to drive the mounting base 2 to rotate 180 degrees, and then the top frame 7 descends again for secondary detection, so that there is no need for manual re-placement of the diodes, which is beneficial to improving the detection efficiency.

[0028] The above embodiments are only exemplary embodiments of the utility model and are not used to limit the utility model. The protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the essence and protection scope of the utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the utility model.

Claims

1. A diode testing device, comprising a workbench (1), characterized in that: A mounting base (2) is rotatably arranged on the workbench (1). A number of groups of placement grooves (3) are formed in the mounting base (2). Diodes (4) are fitted and installed in the placement grooves (3). A top cover (5) is detachably installed on the mounting base (2). A number of groups of conductive terminals (6) are fitted and installed on the front and rear sides of the top cover (5). The number of the conductive terminals (6) on the same side is consistent with the number of the placement grooves (3). A top frame (7) is arranged above the mounting base (2) in a liftable manner. A detection mechanism is fixedly installed on the top frame (7). The detection mechanism includes a number of groups of probe assemblies whose positions correspond to the conductive terminals (6).

2. The diode testing device according to claim 1, characterized in that, The detection mechanism further includes a top plate (8). The top plate (8) is fixedly installed on the top frame (7). A first connecting seat (9) is fixedly installed on the top frame (7). A number of groups of indicator lights (10) are fixedly installed on the first connecting seat (9). The number of the indicator lights (10) is consistent with the number of the placement grooves (3). A first conductive column (11) and a second conductive column (12) are fixedly installed inside the first connecting seat (9). The first conductive column (11) and the second conductive column (12) are electrically connected to the electrodes of the indicator lights (10) respectively.

3. The diode testing device according to claim 2, wherein, A second connecting seat (13) is arranged on the side of the first connecting seat (9). The second connecting seat (13) is fixedly installed on the top plate (8). A third conductive column (14) is fixedly installed inside the second connecting seat (13). A power supply (15) is fixedly installed on the top frame (7). The third conductive column (14) is electrically connected to the positive electrode of the power supply (15). The negative electrode of the power supply (15) is electrically connected to the second conductive column (12).

4. The diode testing device according to claim 3, wherein The probe assembly includes a positive probe (16) and a negative probe (17). The positive probe (16) and the negative probe (17) are respectively fixedly installed at the front and rear ends of the top plate (8). The positive probe (16) is electrically connected to the first conductive column (11). The negative probe (17) is electrically connected to the third conductive column (14).

5. A diode testing device according to claim 1, characterized in that, Electric telescopic rods (18) are fixedly installed at the four corners of the workbench (1). The power output ends of the electric telescopic rods (18) are fixedly connected to the top frame (7). A turntable (19) is rotatably installed on the top of the workbench (1). The mounting base (2) is fixedly installed on the turntable (19). A stepping motor (20) for driving the turntable (19) to rotate is fixedly installed on the side wall of the workbench (1). A worm and worm gear assembly is arranged inside the workbench (1).

6. The diode testing device according to claim 1, characterized in that, Positioning columns (21) are arranged at the left and right ends of the top of the mounting base (2). Positioning holes (22) matching the positioning columns (21) are arranged at the bottom of the top cover (5). The mounting base (2) and the top cover (5) are connected to each other through a buckle (23).

7. A diode testing device according to claim 6, characterized in that, The conductive terminal (6) is fixedly installed at the bottom of the top cover (5). An arc-shaped piece (61) is provided at the bottom end of the conductive terminal (6). The size of the arc-shaped piece (61) matches the electrode of the diode (4). A plugging cylinder (62) is provided at the top end of the arc-shaped piece (61).

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