Detection device for aluminum electrolytic capacitor

Abstract

The utility model relates to the technical field of detection devices, in particular to a detection device for an aluminum electrolytic capacitor, which comprises an aluminum electrolytic capacitor testboard, an operation table and a stand column are mounted on the aluminum electrolytic capacitor testboard, a sleeve column is slidably mounted on the stand column, a top beam is fixedly mounted at the bottom of the sleeve column, and an electric telescopic rod is fixedly mounted on the side edge of the sleeve column. The bottom of the electric telescopic rod is fixedly installed on the upper side of the aluminum electrolytic capacitor test bench. According to the utility model, the process of electromagnetic driving separation and lowering is adopted, the response is rapid, and in the process of separating the aluminum electrolytic capacitor placing grooves at the two sides, the friction action on the bottom of the tested capacitor is extremely small and is eliminated by the rolling of the balls, so that the test accuracy is improved. A large initial acting force on the tested capacitor in the process that the aluminum electrolytic capacitor placing grooves in the two sides are disengaged is avoided, so that test data of a drop test of the capacitor are more accurate, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for aluminum electrolytic capacitors. Background Art

[0002] Aluminum electrolytic capacitor is a component widely used in electronic circuits. It uses high-purity aluminum foil as the anode and the oxide film formed on its surface as the dielectric. The cathode is usually composed of aluminum foil, electrolyte and capacitor paper (electrolytic paper).

[0003] After the production of aluminum electrolytic capacitors is completed, a series of product quality tests need to be carried out on them, such as: capacitance test, voltage resistance test, high temperature resistance test, loss tangent and equivalent resistance test, energy density test and drop resistance test. In the existing technology, the instrument for drop resistance detection will have a high delay during the lowering process. At the same time, the residual initial thrust caused by the lowering device during the lowering process is too large, resulting in a large error in the drop test data. Therefore, it is necessary to propose a device that can perform a drop test on aluminum electrolytic capacitors to reduce test errors. For this purpose, we propose a detection device for aluminum electrolytic capacitors. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a detection device for aluminum electrolytic capacitors.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A detection device for aluminum electrolytic capacitors comprises an aluminum electrolytic capacitor test bench, an operating table and a column are installed on the aluminum electrolytic capacitor test bench, a sleeve column is slidably installed on the column, a top beam is fixedly installed at the bottom of the sleeve column, an electric telescopic rod is fixedly installed on the side of the sleeve column, the bottom of the electric telescopic rod is fixedly installed on the upper side of the aluminum electrolytic capacitor test bench, a guide rail is fixedly installed at the bottom of the top beam, and a drop test assembly is slidably installed on the inner side of the guide rail; the drop test assembly comprises two aluminum electrolytic capacitor placement grooves, the two aluminum electrolytic capacitor placement grooves are symmetrically arranged on the lower side of the guide rail, an upper support plate is fixedly installed on the upper side of the aluminum electrolytic capacitor placement groove, a clamping slider is fixedly installed on the upper end of the upper support plate, a plurality of mounting rails are fixedly installed on the inner side of the aluminum electrolytic capacitor placement groove, and a ball is arranged on the mounting rail, cylinders are symmetrically installed on both sides of the aluminum electrolytic capacitor placement groove on the left side, a cylinder is fixedly installed on the inner side of the cylinder, an electromagnetic coil is sleeved on the cylinder, and a strong permanent magnet is symmetrically installed on both sides of the aluminum electrolytic capacitor placement groove on the right side.

[0007] Preferably, a protective cover is provided directly below the guide rail, and the protective cover is placed on the upper side of the aluminum electrolytic capacitor test bench.

[0008] Preferably, the protective cover is made of transparent polycarbonate plastic material.

[0009] Preferably, a control switch is installed on the operating table, and the control switch is electrically connected to the electric telescopic rod and the electromagnetic coil.

[0010] Preferably, there are two electric telescopic rods symmetrically distributed along both sides of the column.

[0011] Preferably, a buckle cover is provided on the end of the cylinder, and the cylinder, buckle cover and column are all made of insulating materials.

[0012] Preferably, two upper support plates are provided between the clamping slider and the aluminum electrolytic capacitor placement groove.

[0013] Preferably, the balls are evenly and densely distributed along the mounting track.

[0014] Compared with the related art, the detection device for aluminum electrolytic capacitor proposed by the utility model has the following beneficial effects:

[0015] In the utility model, a detection device for an aluminum electrolytic capacitor is described, through the drop test component and the ball setting on the lower side of the capacitor, which greatly reduces the friction effect on the bottom of the capacitor to be tested. When the aluminum electrolytic capacitor placement slots on both sides are quickly disengaged under the action of magnetic repulsion, the bottom of the capacitor to be tested is instantly empty. Compared with the traditional mechanical transmission effect, the response time of the electromagnetic effect has the advantage of rapid response. In addition, the balls densely distributed in the drop test component make the friction effect on the bottom of the test capacitor extremely small during the process of the aluminum electrolytic capacitor placement slots on both sides being disengaged, and all the friction is eliminated by the rolling of the balls, thereby avoiding the large initial force on the test capacitor during the process of the aluminum electrolytic capacitor placement slots on both sides being disengaged, making the test data of the capacitor drop test more accurate and improving the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a detection device for aluminum electrolytic capacitors proposed in the utility model Figure 1 ;

[0017] Figure 2 A schematic diagram of the three-dimensional structure of a detection device for aluminum electrolytic capacitors proposed in the utility model Figure 2 ;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of a drop assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 1 ;

[0019] Figure 4A schematic diagram of the three-dimensional structure of a drop test assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 2 ;

[0020] Figure 5 A schematic diagram of the three-dimensional structure of a drop assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 3 .

[0021] In the figure: 1. Aluminum electrolytic capacitor test bench; 2. Protective cover; 3. Operating table; 4. Control switch; 5. Column; 6. Sleeve column; 7. Electric telescopic rod; 8. Top beam; 9. Guide rail; 10. Drop test assembly; 101. Aluminum electrolytic capacitor placement slot; 102. Upper support plate; 103. Snap-on slider; 104. Mounting track; 105. Ball; 106. Cylinder; 107. Buckle cover; 108. Strong permanent magnet; 109. Cylinder; 110. Electromagnetic coil. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Reference Figure 1-5 , please refer to Figure 1-Figure 5 ,in, Figure 1 A schematic diagram of the three-dimensional structure of a detection device for aluminum electrolytic capacitors proposed in the utility model Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of a detection device for aluminum electrolytic capacitors proposed in the utility model Figure 2 ; Figure 3 A schematic diagram of the three-dimensional structure of a drop assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 1 ; Figure 4 A schematic diagram of the three-dimensional structure of a drop assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 2 ; Figure 5 A schematic diagram of the three-dimensional structure of a drop assembly of an aluminum electrolytic capacitor detection device proposed in the utility model Figure 3 A detection device for aluminum electrolytic capacitors includes: an aluminum electrolytic capacitor test bench 1, an operating table 3 and a column 5 are installed on the aluminum electrolytic capacitor test bench 1, a sleeve column 6 is slidably installed on the column 5, a top beam 8 is fixedly installed at the bottom of the sleeve column 6, an electric telescopic rod 7 is fixedly installed on the side of the sleeve column 6, two electric telescopic rods 7 are symmetrically distributed along both sides of the column 5, the bottom of the electric telescopic rod 7 is fixedly installed on the upper side of the aluminum electrolytic capacitor test bench 1, a guide rail 9 is fixedly installed at the bottom of the top beam 8, a control switch 4 is installed on the operating table 3, the control switch 4 is electrically connected to the electric telescopic rod 7 and an electromagnetic coil 110, and a drop test component 10 is slidably installed on the inner side of the guide rail 9.

[0024] In this method, the drop test assembly 10 includes two aluminum electrolytic capacitor placement grooves 101, which are symmetrically arranged on the lower side of the guide rail 9. An upper support plate 102 is fixedly installed on the upper side of the aluminum electrolytic capacitor placement groove 101, and a clamping slider 103 is fixedly installed on the upper end of the upper support plate 102. A plurality of mounting rails 104 are fixedly installed on the inner side of the aluminum electrolytic capacitor placement groove 101, and a ball 105 is arranged on the mounting rail 104. Cylinders 106 are symmetrically installed on both sides of the left aluminum electrolytic capacitor placement groove 101, and a cylinder 109 is fixedly installed on the inner side of the cylinder 106. An electromagnetic coil 110 is sleeved on the cylinder 109, and a strong permanent magnet 108 is symmetrically installed on both sides of the right aluminum electrolytic capacitor placement groove 101.

[0025] By the arrangement in the above manner, when the electromagnetic coil 110 is energized in the forward direction, a magnetic attraction force is generated between the electromagnetic coil 110 and the strong permanent magnet 108 and then merged. After the capacitor to be tested is placed directly above the aluminum electrolytic capacitor placement slots 101 on both sides, the electromagnetic coil 110 is energized in the reverse direction by the control switch 4, so that a magnetic repulsion force is quickly generated between the electromagnetic coil 110 and the strong permanent magnet 108. Under the action of the magnetic repulsion force, the aluminum electrolytic capacitor placement slots 101 on both sides are quickly disengaged, so that the bottom of the capacitor to be tested is instantly empty, and the test capacitor falls downward under the action of gravity.

[0026] In this embodiment, a protective cover 2 is arranged directly below the guide rail 9 . The protective cover 2 is placed on the upper side of the aluminum electrolytic capacitor test bench 1 . The protective cover 2 is made of transparent polycarbonate plastic.

[0027] Through the above-mentioned configuration, the configuration of the protective cover 2 ensures the safety of the drop test. The transparent polycarbonate plastic material is a transparent plastic with good impact resistance and is not easy to break, which can enhance the impact resistance of the protective cover 2.

[0028] In this embodiment, a buckle cover 107 is sleeved on the end of the cylinder 106, and the cylinder 106, the buckle cover 107 and the column 109 are all made of insulating materials.

[0029] By the above-mentioned arrangement, the cylinder 106, the buckle cover 107 and the column 109 are all made of insulating materials, which avoids interference with the magnetic field generated by the electromagnetic coil 110, thereby making the force between the electromagnetic coil 110 and the strong permanent magnet 108 obvious and direct.

[0030] In this embodiment, two upper support plates 102 are provided between the clamping slider 103 and the aluminum electrolytic capacitor placement slot 101 , and the balls 105 are evenly and densely distributed along the mounting track 104 .

[0031] By the above-mentioned arrangement, the arrangement of the ball 105 makes the friction effect on the bottom of the test capacitor extremely small, which is eliminated by the rolling of the ball 105, thereby avoiding a large initial force on the test capacitor during the disengagement of the aluminum electrolytic capacitor placement slots 101 on both sides.

[0032] The working principle of the detection device for aluminum electrolytic capacitor provided by the utility model is as follows:

[0033] When in use, the electric telescopic rod 7 is started to adjust the drop test assembly 10 to the height required for detection. After the adjustment is completed, the aluminum electrolytic capacitor placement slots 101 on both sides are merged together, and the detection capacitor is placed in the aluminum electrolytic capacitor placement slot 101, so that the capacitor to be detected is located at the upper end of the ball 105 on the mounting track 104, and the capacitor to be detected is placed in the center, and the electromagnetic coil 110 is positively energized by the control switch 4, so that the electromagnetic coil 110 and the strong permanent magnet 108 generate magnetic attraction, so that the aluminum electrolytic capacitors on both sides are placed The slots 101 are attracted to each other. During the drop test, the electromagnetic coil 110 is energized in the reverse direction by using the control switch 4, and a strong magnetic repulsion is generated between the electromagnetic coil 110 and the strong permanent magnet 108, so that the aluminum electrolytic capacitor placement slots 101 on the left and right sides are quickly bounced away from each other. In the process of the aluminum electrolytic capacitor placement slots 101 moving away from each other, the ball 105 on the lower side of the capacitor rolls quickly, eliminating the friction at the bottom of the capacitor. Finally, the capacitor with the bottom in an empty state completes the free-fall drop test under the action of gravity.

[0034] Compared with the related art, the detection device of an aluminum electrolytic capacitor provided by the utility model has the following beneficial effects:

[0035] The utility model provides a detection device for aluminum electrolytic capacitors. The utility model adopts an electromagnetically driven disengagement and lowering process, and has the advantage of rapid response. In addition, in the process of disengagement of the aluminum electrolytic capacitor placement slots 101 on both sides, the balls 105 provided make the friction effect on the bottom of the test capacitor extremely small, and all the friction is eliminated by the rolling of the balls 105, thereby avoiding the process of disengagement of the aluminum electrolytic capacitor placement slots 101 on both sides causing a large initial force on the test capacitor, making the test data of the capacitor drop test more accurate and improving the practicality.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detection device for aluminum electrolytic capacitors, characterized in that: The invention comprises an aluminum electrolytic capacitor test bench (1), wherein an operating table (3) and a column (5) are installed on the aluminum electrolytic capacitor test bench (1), a sleeve column (6) is slidably installed on the column (5), a top beam (8) is fixedly installed at the bottom of the sleeve column (6), an electric telescopic rod (7) is fixedly installed on the side of the sleeve column (6), the bottom of the electric telescopic rod (7) is fixedly installed on the upper side of the aluminum electrolytic capacitor test bench (1), a guide rail (9) is fixedly installed at the bottom of the top beam (8), and a drop test assembly (10) is slidably installed on the inner side of the guide rail (9); The drop test assembly (10) comprises two aluminum electrolytic capacitor placement grooves (101), the two aluminum electrolytic capacitor placement grooves (101) are symmetrically arranged on the lower side of the guide rail (9), an upper support plate (102) is fixedly installed on the upper side of the aluminum electrolytic capacitor placement groove (101), a clamping slider (103) is fixedly installed on the upper end of the upper support plate (102), a plurality of mounting rails (104) are fixedly installed on the inner side of the aluminum electrolytic capacitor placement groove (101), and a ball bearing (105) is arranged on the mounting rail (104), cylinders (106) are symmetrically installed on both sides of the left aluminum electrolytic capacitor placement groove (101), a cylinder (109) is fixedly installed on the inner side of the cylinder (106), and an electromagnetic coil (110) is sleeved on the cylinder (109), and strong permanent magnets (108) are symmetrically installed on both sides of the right aluminum electrolytic capacitor placement groove (101).

2. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: A protective cover (2) is arranged directly below the guide rail (9), and the protective cover (2) is placed on the upper side of the aluminum electrolytic capacitor test bench (1).

3. The detection device for aluminum electrolytic capacitor according to claim 2, characterized in that: The protective cover (2) is made of transparent polycarbonate plastic material.

4. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: A control switch (4) is installed on the operating table (3), and the control switch (4) is electrically connected to the electric telescopic rod (7) and the electromagnetic coil (110).

5. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: There are two electric telescopic rods (7) symmetrically distributed along both sides of the column (5).

6. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: A buckle cover (107) is sleeved on the end of the cylinder (106), and the cylinder (106), the buckle cover (107) and the column (109) are all made of insulating materials.

7. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: Two upper support plates (102) are arranged between the clamping slider (103) and the aluminum electrolytic capacitor placement groove (101).

8. The detection device for aluminum electrolytic capacitor according to claim 1, characterized in that: The balls (105) are evenly and densely distributed along the mounting track (104).

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