Multifunctional tantalum electrolytic capacitor test fixture

Abstract

The utility model discloses a multifunctional tantalum electrolytic capacitor test fixture, which belongs to the technical field of electrolytic capacitor detection and comprises an insulating bottom plate, leads positioned at two ends of the insulating bottom plate and externally connected with a power supply, and an electrode plate which is arranged in the insulating bottom plate, is vertical to the length direction of the insulating bottom plate and is electrically connected with the leads. According to the utility model, the bosses are uniformly arranged on the insulating bottom plate, the conductive metal plates in contact with the electrode plate are symmetrically arranged on the two sides of the bosses in a sliding manner, and the two groups of conductive metal plates are controlled to be telescopically clamped through threaded connection between the bidirectional screw rods and the two groups of conductive metal plates, so that in the test process, the test efficiency is improved; pins of a plug-in tantalum capacitor are inserted into the two sides of the boss, clamping testing is carried out through the conductive metal plates, when a chip tantalum capacitor is measured, the chip tantalum capacitor is directly placed on the top of the boss, then clamping and positioning testing is carried out through the two sets of conductive metal plates, the applicability of the device is improved, and the tantalum capacitors of different styles can be conveniently used.

Description

Technical Field

[0001] The utility model relates to a fixture, in particular to a multifunctional tantalum electrolytic capacitor test fixture, belonging to the technical field of electrolytic capacitor detection. Background Art

[0002] In the prior art, for example, the utility model with publication number 202221609817.5 discloses a screening and testing fixture for a combined tantalum electrolytic capacitor. In order to solve the problem of lead breakage caused by lead bending during the test process, a clamping method is adopted to bring two sets of clamps close to each other to clamp the pins of the capacitor, thereby achieving the effect of clamping the capacitor without bending the pins of the capacitor.

[0003] Similar to the above application, there are still some shortcomings:

[0004] Tantalum capacitors are divided into plug-in tantalum capacitors and surface mount tantalum capacitors. Plug-in tantalum capacitors have pins, while surface mount tantalum capacitors do not have linear pins. The above device cannot be used to clamp and measure surface mount tantalum capacitors, and its applicability is low. In addition, the sizes of plug-in tantalum capacitors are different, and the spacing between pins is also different. The spacing between the two sets of clamping mechanisms of the device is fixed, which will still cause deformation of the pins during the clamping process.

[0005] Therefore, a multifunctional tantalum electrolytic capacitor test fixture is designed to optimize the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a multifunctional tantalum electrolytic capacitor testing fixture, by evenly arranging bosses on an insulating bottom plate, and symmetrically slidingly arranging conductive metal plates in contact with electrode plates on both sides of the bosses, and threadedly connecting the two groups of conductive metal plates through a bidirectional screw to control the telescopic clamping of the two groups of conductive metal plates, so that during the test, the pins of the plug-in tantalum capacitor can be inserted into the two sides of the bosses, and the conductive metal plates can be used for clamping test, while when measuring the chip tantalum capacitor, it is directly placed on the top of the boss, and then the two groups of conductive metal plates are used for clamping and positioning test, thereby improving the applicability of the device and facilitating the use of tantalum capacitors of different styles, and by arranging an expansion mechanism composed of a transverse guide groove, a support plate, a screw, a vertical guide groove, an inner screw tube, a push rod, and a through groove on the top of the boss, the surface area of ​​the top of the boss can be adjusted, and the placement stability of the chip tantalum capacitor can be improved, and the spacing between the two sides of the top of the boss can be controlled, so that it can be adjusted according to the spacing of the pins of the plug-in tantalum capacitor to avoid deformation of the pins, and the utility model is more practical.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A multifunctional tantalum electrolytic capacitor test fixture comprises an insulating base plate, wires for external power supply located at both ends of the insulating base plate, an electrode plate inside the insulating base plate which is perpendicular to the length direction of the insulating base plate and electrically connected to the wires, a rectangular array of evenly arranged bosses on the top of the insulating base plate, the bosses are made of the same material as the insulating base plate, an expansion mechanism is provided on the top of the bosses for expanding the spacing between the two sides of the top of the bosses, slide grooves are symmetrically provided on both sides of the bosses and located at the top of the insulating base plate, the electrode plate is attached to the bottom of the slide grooves, a conductive metal plate is slidably installed inside the slide grooves along the length direction of the insulating base plate, the bottom of the conductive metal plate is in contact with the electrode plate, a bidirectional screw is rotatably installed between the slide grooves on both sides of the bosses, and the two ends of the bidirectional screw are respectively threadedly connected to the conductive metal plates, adjacent bidirectional screws are fixedly connected, and one end of the bidirectional screw is located on the outside of the insulating base plate.

[0009] Preferably, an adjusting block is fixedly mounted on one end of the bidirectional screw located outside the insulating bottom plate, and anti-slip grooves are evenly arranged on the outer side of the adjusting block along the circumferential direction.

[0010] Preferably, the side edge of the boss is parallel to the conductive metal plate, and the protruding height of the conductive metal plate is twice the height of the boss.

[0011] Preferably: the expansion mechanism includes a transverse guide groove, a support plate, a screw, a vertical guide groove, an inner screw tube, a push rod and a through groove, the transverse guide grooves are symmetrically arranged on both sides of the top of the boss, the interior of the transverse guide grooves is provided with a support plate for sliding along the length direction, a vertical guide groove is arranged at the middle position inside the boss, an inner screw tube is arranged inside the vertical guide groove for sliding up and down, a screw rod threadedly connected to the inner screw tube is rotatably installed between the upper and lower ends of the vertical guide groove, and the top of the screw rod extends to the top of the boss and is parallel to the top surface of the boss, a push rod is hingedly installed between the outer side of the inner screw tube and the support plate, and a through groove cooperating with the push rod is arranged between the transverse guide groove and the vertical guide groove.

[0012] Preferably, the height of the support plate is the same as the depth of the transverse guide groove, and the support plate is made of insulating plastic.

[0013] Preferably: an adjusting disk is provided on the top of the screw rod, and a cross adjusting slot is provided on the top of the adjusting disk.

[0014] Preferably: the bottom of the conductive metal plate is provided with a mounting groove, the inner bottom of the mounting groove is slidably provided with a fitting sheet, a return spring is provided between the top of the fitting sheet and the inner top of the mounting groove, and the material of the fitting sheet is the same as that of the conductive metal plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a multifunctional tantalum electrolytic capacitor test fixture, which evenly arranges bosses on an insulating bottom plate, and symmetrically slides conductive metal plates in contact with electrode plates on both sides of the bosses, and controls the telescopic clamping of the two groups of conductive metal plates through threaded connection between a bidirectional screw and two groups of conductive metal plates. During the test, the pins of the plug-in tantalum capacitor can be inserted into the two sides of the bosses, and the conductive metal plates are used for clamping test. When measuring the chip tantalum capacitor, it is directly placed on the top of the bosses, and then the two groups of conductive metal plates are used for clamping and positioning test, thereby improving the applicability of the device and facilitating the use of tantalum capacitors of different styles.

[0017] By arranging an expansion mechanism consisting of a transverse guide groove, a support plate, a screw rod, a vertical guide groove, an inner screw tube, a push rod, and a through groove on the top of the boss, the surface area of ​​the top of the boss can be adjusted, thereby improving the placement stability of the chip tantalum capacitor. In addition, the spacing between the two sides of the top of the boss can be controlled so that it can be adjusted according to the spacing of the pins of the plug-in tantalum capacitor to avoid deformation of the pins, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front cross-sectional view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is a cross-sectional view of the boss of the utility model;

[0021] Figure 4 It is a cross-sectional view of the conductive metal plate of the present utility model.

[0022] In the figure: 1. Insulating base plate; 2. Boss; 3. Expansion mechanism; 4. Slide groove; 5. Electrode plate; 6. Wire; 7. Conductive metal plate; 8. Bidirectional screw; 9. Adjustment block; 10. Horizontal guide groove; 11. Support plate; 12. Screw; 13. Vertical guide groove; 14. Inner screw tube; 15. Push rod; 16. Through groove; 17. Mounting groove; 18. Fitting sheet; 19. Return spring. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0024] like Figure 1-Figure 4As shown, the present embodiment provides a multifunctional tantalum electrolytic capacitor test fixture, including an insulating base plate 1, wires 6 for external power supply located at both ends of the insulating base plate 1, an electrode plate 5 inside the insulating base plate 1 perpendicular to the length direction of the insulating base plate 1 and electrically connected to the wire 6, the top of the insulating base plate 1 is evenly provided with bosses 2 in a rectangular array, the bosses 2 are made of the same material as the insulating base plate 1, the top of the bosses 2 are provided with an expansion mechanism 3 for expanding the distance between the two sides of the top of the bosses 2, and slide grooves 4 are symmetrically opened on both sides of the bosses 2 and located at the top of the insulating base plate 1, the electrode plate 5 is attached to the bottom of the slide groove 4, and the inside of the slide groove 4 is slidably installed with conductive metal plates 7 along the length direction of the insulating base plate 1, and the bottom of the conductive metal plate 7 is in contact with the electrode plate 5, and a bidirectional screw 8 is rotatably installed between the slide grooves 4 on both sides of the boss 2, and the two ends of the bidirectional screw 8 are respectively threadedly connected to the conductive metal plate 7, and the adjacent bidirectional screws 8 are fixedly connected, and one end of the bidirectional screw 8 is located on the outside of the insulating base plate 1.

[0025] The general working principle is as follows: when testing the plug-in tantalum capacitor, adjust the expansion mechanism 3, adjust the spacing on both sides of the boss 2 to be the same as the spacing of the pins of the plug-in tantalum capacitor, and then insert the pins of the plug-in tantalum capacitor into both sides of the boss 2 respectively, and then rotate the bidirectional screw 8 to control the two groups of conductive metal plates 7 to clamp the pins, and fit the pins to the outside of the boss 2, so that the plug-in tantalum capacitor is conductive and positioned, and then power-on test is performed; when testing the chip tantalum capacitor, adjust the expansion mechanism 3, adjust the surface area of ​​the top of the boss 2 to ensure the support stability of the chip tantalum capacitor, and then directly place the chip tantalum capacitor horizontally on the top of the boss 2, and the pins at both ends of the chip tantalum capacitor correspond to the two groups of conductive metal plates 7 respectively, and then rotate the bidirectional screw 8 to clamp and connect the conductive metal plate 7 and the chip tantalum capacitor, and finally power on for testing.

[0026] In this embodiment, an adjustment block 9 is fixedly mounted on one end of the bidirectional screw 8 located outside the insulating bottom plate 1 , and anti-slip grooves are evenly arranged on the outer side of the adjustment block 9 along the circumferential direction.

[0027] Partial working principle: in the process of controlling the adjustment of the bidirectional screw 8, the adjustment block 9 is held by hand to drive the rotation of the bidirectional screw 8, and the adjustment is more convenient.

[0028] In this embodiment, the side of the boss 2 is parallel to the conductive metal plate 7 , and the protruding height of the conductive metal plate 7 is twice the height of the boss 2 .

[0029] Partial working principle: The conductive metal plate 7 protrudes from the top of the boss 2, so the stability of the clamping can be guaranteed during the clamping process.

[0030] In this embodiment, the expansion mechanism 3 includes a transverse guide groove 10, a support plate 11, a screw 12, a vertical guide groove 13, an inner screw tube 14, a push rod 15 and a through groove 16. The transverse guide groove 10 is symmetrically arranged on both sides of the top of the boss 2. The interior of the transverse guide groove 10 is provided with a support plate 11 slidingly arranged along the length direction. A vertical guide groove 13 is arranged at the middle position inside the boss 2. An inner screw tube 14 is slidingly arranged up and down inside the vertical guide groove 13. A screw 12 threadedly connected to the inner screw tube 14 is rotatably installed between the upper and lower ends of the vertical guide groove 13, and the top of the screw 12 extends to the top of the boss 2 and is parallel to the top surface of the boss 2. A push rod 15 is hingedly installed between the outer side of the inner screw tube 14 and the support plate 11. A through groove 16 cooperating with the push rod 15 is arranged between the transverse guide groove 10 and the vertical guide groove 13.

[0031] Local working principle: When the surface area of ​​the top of the boss 2 needs to be adjusted, the screw 12 is rotated to control the inner screw tube 14 to slide along the length direction of the screw 12. The movement of the inner screw tube 14 cooperates with the push rod 15 to control the support plate 11 to slide inside the transverse guide groove 10, thereby adjusting the surface area of ​​the top of the boss 2.

[0032] In this embodiment, the height of the support plate 11 is the same as the depth of the transverse guide groove 10 , and the support plate 11 is made of insulating plastic.

[0033] Partial working principle: Since the top of the support plate 11 is level with the top of the boss 2, it can contact the bottom of the capacitor during use, providing a more stable support.

[0034] In this embodiment, an adjusting disk is provided on the top of the screw rod 12, and a cross adjusting slot is provided on the top of the adjusting disk.

[0035] Partial working principle: When controlling the rotation of the screw rod 12, a cross screwdriver is inserted into the cross adjustment slot to control the rotation of the screw rod 12, which makes the control more convenient.

[0036] In this embodiment, a mounting groove 17 is provided at the bottom of the conductive metal plate 7, a fitting sheet 18 is slidably provided at the inner bottom of the mounting groove 17, a return spring 19 is provided between the top of the fitting sheet 18 and the inner top of the mounting groove 17, and the material of the fitting sheet 18 is the same as that of the conductive metal plate 7.

[0037] Partial working principle: When the conductive metal plate 7 slides on the top of the electrode plate 5 for a long time, it will cause wear. By using the return spring 19, the bonding sheet 18 can always be bonded to the surface of the electrode plate 5, ensuring the conductive effect.

[0038] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A multifunctional tantalum electrolytic capacitor test fixture, comprising an insulating base plate (1), wires (6) for connecting to an external power source at both ends of the insulating base plate (1), and an electrode plate (5) inside the insulating base plate (1) perpendicular to the length direction of the insulating base plate (1) and electrically connected to the wires (6), characterized in that: The top of the insulating base plate (1) is evenly provided with bosses (2) in a rectangular array. The bosses (2) are made of the same material as the insulating base plate (1). The top of the bosses (2) is provided with an expansion mechanism (3) for expanding the distance between the two sides of the top of the bosses (2). Slide grooves (4) are symmetrically provided on both sides of the bosses (2) and are located on the top of the insulating base plate (1). The electrode plate (5) is attached to the bottom of the slide groove (4). The inside of the slide groove (4) is slidably installed with a conductive metal plate (7) along the length direction of the insulating base plate (1). The bottom of the conductive metal plate (7) is in contact with the electrode plate (5). A bidirectional screw (8) is rotatably installed between the slide grooves (4) on both sides of the boss (2), and the two ends of the bidirectional screw (8) are respectively threadedly connected to the conductive metal plate (7). Adjacent bidirectional screws (8) are fixedly connected. One end of the bidirectional screw (8) is located on the outside of the insulating base plate (1).

2. The multifunctional tantalum electrolytic capacitor test fixture according to claim 1, characterized in that: An adjustment block (9) is fixedly mounted on one end of the bidirectional screw rod (8) located outside the insulating bottom plate (1), and anti-slip grooves are evenly arranged on the outside of the adjustment block (9) along the circumferential direction.

3. The multifunctional tantalum electrolytic capacitor test fixture according to claim 1, characterized in that: The side edge of the boss (2) is parallel to the conductive metal plate (7), and the protruding height of the conductive metal plate (7) is twice the height of the boss (2).

4. The multifunctional tantalum electrolytic capacitor test fixture according to claim 1, characterized in that: The expansion mechanism (3) comprises a transverse guide groove (10), a support plate (11), a screw rod (12), a vertical guide groove (13), an inner screw tube (14), a push rod (15) and a through groove (16). The transverse guide groove (10) is symmetrically arranged on both sides of the top of the boss (2). The support plate (11) is slidably arranged inside the transverse guide groove (10) along the length direction. The vertical guide groove (13) is arranged at the middle position inside the boss (2). The inside of the vertical guide groove (13) slides up and down. An inner screw tube (14) is rotatably provided, a screw rod (12) threadedly connected to the inner screw tube (14) is rotatably installed between the upper and lower ends of the vertical guide groove (13), and the top of the screw rod (12) extends to the top of the boss (2) and is parallel to the top surface of the boss (2), a push rod (15) is hingedly installed between the outer side of the inner screw tube (14) and the support plate (11), and a through groove (16) cooperating with the push rod (15) is opened between the transverse guide groove (10) and the vertical guide groove (13).

5. The multifunctional tantalum electrolytic capacitor test fixture according to claim 4, characterized in that: The height of the support plate (11) is the same as the depth of the transverse guide groove (10), and the support plate (11) is made of insulating plastic.

6. The multifunctional tantalum electrolytic capacitor test fixture according to claim 4, characterized in that: An adjusting disk is arranged on the top of the screw rod (12), and a cross adjusting groove is arranged on the top of the adjusting disk.

7. A multifunctional tantalum electrolytic capacitor test fixture according to claim 1 or 4, characterized in that: The bottom of the conductive metal plate (7) is provided with a mounting groove (17), the inner bottom of the mounting groove (17) is slidably provided with a bonding sheet (18), a return spring (19) is provided between the top of the bonding sheet (18) and the inner top of the mounting groove (17), and the material of the bonding sheet (18) is the same as that of the conductive metal plate (7).

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