Electrolytic capacitor tester

Abstract

The utility model discloses an electrolytic capacitor tester, which relates to the technical field of capacitance testers, and comprises a tester main body, the upper part of the tester main body is movably connected with a protective shell, and the protective shell is provided with a test wire contraction assembly. The test wire contraction assembly comprises a rotating rod and a gear which are movably connected to the protective shell, and a take-up reel and a double-end wire which are movably connected to the protective shell, the rotation of the rotating rod drives the take-up reel to rotate, the rotation of the take-up reel enables the double-end wire to contract, and the take-up reel is provided with a test replacement assembly. A conical testing head and an upper toothed plate can test an electrolytic capacitor, a threaded rod and a sleeve are in threaded connection so that the conical testing head can make contact with the upper toothed plate, a testing wire shrinking assembly is arranged, rotation of a rotating rod can drive a take-up reel to rotate, rotation of the take-up reel can enable a double-end wire to shrink, and therefore the double-end wire can be tested. Therefore, the test convenience can be improved.

Description

Technical Field

[0001] This utility model relates to the field of capacitance tester technology, and in particular to an electrolytic capacitor tester. Background Technology

[0002] In the testing process, the electrolytic capacitor tester precisely applies a specific voltage to the electrolytic capacitor and then monitors and records the leakage current value of the capacitor under this voltage. By intelligently comparing this measurement result with a pre-set pass threshold, the tester can quickly and accurately evaluate the performance status of the electrolytic capacitor, thereby effectively determining whether it meets the usage requirements and ensuring the stability and reliability of electronic equipment.

[0003] Traditional electrolytic capacitor testers work on the principle of charge storage and leakage characteristics of electrolytic capacitors under the influence of an electric field. During the test, the tester first applies a stable DC voltage to the electrolytic capacitor under test. This voltage value is usually determined based on the rated voltage of the capacitor. Subsequently, the tester uses a high-precision current detection circuit to continuously monitor the leakage current of the capacitor after the voltage is applied.

[0004] However, in actual use, the connecting wires between the tester and the capacitor are often long and difficult to store, which not only increases the inconvenience of testing, but also causes interference and influence on the test results when the wires are tangled. Furthermore, the test head of the tester is not easy to handle the testing requirements of different types of electrolytic capacitors. Therefore, it is necessary to propose an electrolytic capacitor tester. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the long and difficult-to-store connecting wires between the tester and the capacitor, and the fact that the test head of the tester is not suitable for testing different types of electrolytic capacitors. Therefore, this invention proposes an electrolytic capacitor tester.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrolytic capacitor tester includes a tester body with a protective shell movably connected to its upper part. A test lead retraction assembly is mounted on the protective shell. The test lead retraction assembly includes a rotating rod and gear movably connected to the protective shell, and a take-up reel and a double-ended lead movably connected to the protective shell. Rotation of the rotating rod causes the take-up reel to rotate, which in turn causes the double-ended lead to retract. A test replacement assembly is mounted on the take-up reel, including a threaded rod and a tapered test head movably connected to the take-up reel, and a sleeve and an upper toothed plate movably connected to the take-up reel. Both the tapered test head and the upper toothed plate can test electrolytic capacitors. The threaded connection between the threaded rod and the sleeve allows the tapered test head to contact the upper toothed plate.

[0008] The above technical solution further includes:

[0009] A transmission block is fixedly connected to the side of the tester body near the protective shell. The end of the transmission block away from the tester body is fixedly connected to the protective shell. The function of the transmission block is to transmit data from the protective shell to the tester body.

[0010] The outer side of the protective shell is rotatably connected to the rotating rod, and the inner side of the protective shell is rotatably connected to the rotating shaft. The outer side of the rotating shaft is fixedly connected to the gear. The rotating rod and the gear mesh with each other. The end of the rotating shaft away from the protective shell is fixedly connected to a rotating disk. The rotation of the rotating rod can drive the gear to rotate.

[0011] The rotating disk and the take-up reel are rotatably connected. The end of the rotating disk away from the rotating shaft is fixedly connected to the positioning rod. The outer side of the positioning rod is fixedly connected to the fixing post. The outer side of the fixing post is in contact with the take-up reel, and the fixing post can be locked onto the outer side of the take-up reel.

[0012] The outer side of the take-up reel is symmetrically fixedly connected with movable blocks. The ends of the two sets of movable blocks away from the take-up reel are fixedly connected with limit tubes, which can limit the position of the double-ended conductor.

[0013] The outer side of the take-up reel is fixedly connected to the double-ended conductor, and the end of the double-ended conductor away from the take-up reel is fixedly connected to the threaded rod. The double-ended conductor is used to transmit data detected by the conical test head.

[0014] The end of the threaded rod away from the double-ended lead wire is fixedly connected to the conical test head, and the threaded rod and the sleeve are threadedly connected, with the threaded rod able to be threaded onto the inside of the sleeve.

[0015] The end of the sleeve away from the conical test head is fixedly connected to a lower toothed plate. A torsion spring is movably connected to the outside of the lower toothed plate. The torsion spring and the upper toothed plate are movably connected. By pressing the upper toothed plate, a pressing force can be applied to the torsion spring.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting a test lead retraction component, the rotation of the rotating rod will drive the take-up reel to rotate, and the rotation of the take-up reel will cause the double-ended lead to retract, thereby improving the convenience of testing. This is because the test lead can be easily retracted and organized when not needed, and the mess of the lead can also be avoided. The retraction of the test lead also helps to reduce interference factors in the testing process, because the retracted lead can reduce the influence of the lead's own resistance, inductance and other characteristics on the test results, thereby improving the accuracy of the test.

[0018] 2. In this utility model, by setting up a test replacement component, the tester can flexibly cope with the test requirements of different types of electrolytic capacitors. In practical applications, different types of electrolytic capacitors may require test heads of different specifications or types for accurate measurement. By setting up replaceable test heads, the tester can easily adapt to these changes and meet various test requirements without purchasing multiple devices. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an electrolytic capacitor tester proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the test lead shrinkage assembly structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the test replacement component in this utility model;

[0022] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0024] Figure 6 for Figure 2 Enlarged schematic diagram of the structure at point C;

[0025] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point D.

[0026] In the diagram: 1. Tester body; 2. Transmission block; 3. Protective shell; 4. Rotating rod; 5. Gear; 6. Rotating shaft; 7. Rotating disk; 8. Positioning rod; 9. Take-up reel; 10. Movable block; 11. Limiting tube; 12. Double-ended lead wire; 13. Threaded rod; 14. Conical test head; 15. Sleeve; 16. Lower toothed plate; 17. Torsion spring; 18. Upper toothed plate; 19. Fixed column. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] like Figures 1-7 As shown, the present invention proposes an electrolytic capacitor tester, including a tester body 1. A protective shell 3 is movably connected to the upper part of the tester body 1. A test lead retraction assembly is provided on the protective shell 3. The test lead retraction assembly includes a rotating rod 4 and a gear 5 movably connected to the protective shell 3, and a take-up reel 9 and a double-ended lead 12 movably connected to the protective shell 3. The rotation of the rotating rod 4 will drive the take-up reel 9 to rotate, and the rotation of the take-up reel 9 will cause the double-ended lead 12 to retract. A test replacement assembly is provided on the take-up reel 9. The test replacement assembly includes a threaded rod 13 and a conical test head 14 movably connected to the take-up reel 9, and a sleeve 15 and an upper toothed plate 18 movably connected to the take-up reel 9. Both the conical test head 14 and the upper toothed plate 18 can test electrolytic capacitors. The threaded connection between the threaded rod 13 and the sleeve 15 will cause the conical test head 14 to contact the upper toothed plate 18.

[0030] A transmission block 2 is fixedly connected to the side of the tester body 1 near the protective shell 3. The end of the transmission block 2 away from the tester body 1 is fixedly connected to the protective shell 3. The function of the transmission block 2 is to transmit data from the protective shell 3 to the tester body 1.

[0031] The outer side of the protective shell 3 is rotatably connected to the rotating rod 4, and the inner side of the protective shell 3 is rotatably connected to the rotating shaft 6. The outer side of the rotating shaft 6 is fixedly connected to the gear 5. The rotating rod 4 and the gear 5 mesh with each other. The end of the rotating shaft 6 away from the protective shell 3 is fixedly connected to the rotating disk 7. The rotation of the rotating rod 4 can drive the gear 5 to rotate.

[0032] The rotating disk 7 and the take-up reel 9 are rotatably connected. The end of the rotating disk 7 away from the rotating shaft 6 is fixedly connected to the positioning rod 8. The outer side of the positioning rod 8 is fixedly connected to the fixing post 19. The outer side of the fixing post 19 is in contact with the take-up reel 9. The fixing post 19 can be locked on the outer side of the take-up reel 9.

[0033] The outer side of the take-up reel 9 is symmetrically fixed with movable blocks 10. The ends of the two sets of movable blocks 10 away from the take-up reel 9 are fixedly connected with limit tubes 11, which can limit the position of the double-ended conductor 12.

[0034] The outer side of the take-up reel 9 is fixedly connected to the double-ended conductor 12, and the end of the double-ended conductor 12 away from the take-up reel 9 is fixedly connected to the threaded rod 13. The double-ended conductor 12 is used to transmit the data detected by the conical test head 14.

[0035] In this embodiment, the rotation of the rotating rod 4 drives the take-up reel 9 to rotate, which in turn causes the double-ended conductor 12 to retract, thereby improving the convenience and efficiency of the test. The main body 1 of the tester is used to display various test data, and the transmission block 2 connects the main body 1 of the tester and the protective shell 3 and transmits data. The rotating rod 4 can rotate outside the protective shell 3, and its rotation drives the gear 5 to rotate. The gear 5 then drives the rotating shaft 6 to rotate, and the rotating shaft 6 can rotate inside the protective shell 3. When the rotating shaft 6 rotates, it drives the rotating disk 7 to rotate. The rotation of the rotating disk 7 will drive the positioning rod 8 to rotate. The function of the fixed column 19 is to connect the positioning rod 8 and lock it on the outside of the take-up reel 9. When the positioning rod 8 rotates, it will drive the take-up reel 9 to rotate. The rotation of the take-up reel 9 will drive the double-ended conductor 12 to rotate, so that the double-ended conductor 12 can be wound around the outside of the take-up reel 9. The function of the movable block 10 is to connect the take-up reel 9 and the limiting tube 11. The function of the limiting tube 11 is to limit the double-ended conductor 12. When the double-ended conductor 12 is wound around the outside of the take-up reel 9, the limiting tube 11 can limit the path of the double-ended conductor 12.

[0036] Example 2

[0037] like Figures 1-7 As shown, based on Embodiment 1, the end of the threaded rod 13 away from the double-ended wire 12 is fixedly connected to the conical test head 14, and the threaded rod 13 and the sleeve 15 are threadedly connected, with the threaded rod 13 being able to be threadedly connected to the inside of the sleeve 15.

[0038] The end of the sleeve 15 away from the conical test head 14 is fixedly connected to a lower toothed plate 16. A torsion spring 17 is movably connected to the outside of the lower toothed plate 16. The torsion spring 17 and the upper toothed plate 18 are movably connected. By pressing the upper toothed plate 18, a pressing force can be applied to the torsion spring 17.

[0039] In this embodiment, the threaded rod 13 can be threaded to the inside of the sleeve 15. The two poles of the electrolytic capacitor can be detected by the two sets of conical test heads 14, thus enabling testing. When it is necessary to clamp and test the electrolytic capacitor, the threaded rod 13 needs to be threaded to the inside of the sleeve 15. At this time, the test head can be transformed into different shapes. By pressing the upper toothed plate 18, the torsion spring 17 can be pressed, so that the lower toothed plate 16 and the upper toothed plate 18 can clamp the two poles of the electrolytic capacitor to be tested.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrolytic capacitor tester, comprising a tester body (1), characterized in that, The upper part of the main body (1) of the tester is movably connected to a protective shell (3). A test lead retraction assembly is provided on the protective shell (3). The test lead retraction assembly includes a rotating rod (4) and a gear (5) movably connected to the protective shell (3), and a take-up reel (9) and a double-ended lead wire (12) movably connected to the protective shell (3). The rotation of the rotating rod (4) will drive the take-up reel (9) to rotate, and the rotation of the take-up reel (9) will cause the double-ended lead wire (12) to retract. The take-up reel (9) is provided with a test replacement assembly, which includes a threaded rod (13) and a conical test head (14) movably connected on the take-up reel (9), as well as a sleeve (15) and an upper toothed plate (18) movably connected on the take-up reel (9). The conical test head (14) and the upper toothed plate (18) can both test electrolytic capacitors. The threaded connection between the threaded rod (13) and the sleeve (15) will cause the conical test head (14) to contact the upper toothed plate (18).

2. The electrolytic capacitor tester according to claim 1, characterized in that, A transmission block (2) is fixedly connected to the side of the tester body (1) near the protective shell (3), and the end of the transmission block (2) away from the tester body (1) is fixedly connected to the protective shell (3).

3. The electrolytic capacitor tester according to claim 1, characterized in that, The outer side of the protective shell (3) is rotatably connected to the rotating rod (4), the inner side of the protective shell (3) is rotatably connected to the rotating shaft (6), the outer side of the rotating shaft (6) is fixedly connected to the gear (5), the rotating rod (4) and the gear (5) mesh with each other, and the end of the rotating shaft (6) away from the protective shell (3) is fixedly connected to the rotating disk (7).

4. The electrolytic capacitor tester according to claim 3, characterized in that, The rotating disk (7) and the take-up reel (9) are rotatably connected. The end of the rotating disk (7) away from the rotating shaft (6) is fixedly connected to the positioning rod (8). The outer side of the positioning rod (8) is fixedly connected to the fixing column (19). The outer side of the fixing column (19) is in contact with the take-up reel (9).

5. An electrolytic capacitor tester according to claim 1, characterized in that, The take-up reel (9) is symmetrically fixedly connected with movable blocks (10), and the ends of the two sets of movable blocks (10) away from the take-up reel (9) are fixedly connected with limit tubes (11).

6. The electrolytic capacitor tester according to claim 1, characterized in that, The outer side of the take-up reel (9) is fixedly connected to the double-ended conductor (12), and the end of the double-ended conductor (12) away from the take-up reel (9) is fixedly connected to the threaded rod (13).

7. An electrolytic capacitor tester according to claim 1, characterized in that, The threaded rod (13) is fixedly connected to the end away from the double-ended wire (12) and the conical test head (14), and the threaded rod (13) and the sleeve (15) are threadedly connected.

8. An electrolytic capacitor tester according to claim 1, characterized in that, The end of the sleeve (15) away from the conical test head (14) is fixedly connected to a lower toothed plate (16), and a torsion spring (17) is movably connected to the outside of the lower toothed plate (16). The torsion spring (17) and the upper toothed plate (18) are movably connected.

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