Electrical performance efficient test tool for plate-type porous ceramic dielectric capacitor

Abstract

The utility model discloses an electrical performance high-efficiency testing tool used for a plate-type porous ceramic dielectric capacitor, which comprises a bottom plate, metal sleeves, metal pressure springs, metal conical probes, a pressing plate and weights, the lower ends of a plurality of vertical sleeves are respectively arranged on the bottom plate, the vertical pressure springs are arranged in the sleeves, and the metal conical probes are arranged on the pressing plate. The lower ends of a plurality of conical probes with the upper ends being conical tips are arranged in the sleeves respectively and located at the upper ends of the corresponding compression springs, the pressing plate is located above the sleeves, a plurality of pressing plate stand columns are arranged below the pressing plate, and the weights are arranged on the pressing plate. When the device is used, the power supply jointing clamp of the testing instrument is respectively connected with the outer electrode of the plate-type porous ceramic dielectric capacitor and the plurality of sleeves, and the plurality of sleeves can be completely communicated through the lead or the metal bottom plate, so that the electrical performance test of the plurality of through holes of the plate-type porous ceramic dielectric capacitor can be completed at one time; the testing efficiency is obviously improved, and rapid delivery of products is facilitated.

Description

Technical Field

[0001] This utility model relates to a testing fixture for plate-type porous ceramic capacitors, and more particularly to a high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors. Background Technology

[0002] A ceramic capacitor is a type of capacitor that uses ceramic material as its dielectric. A plate-type porous ceramic capacitor is a plate-shaped ceramic capacitor with multiple through-holes, such as... Figure 1 The plate-type porous ceramic capacitor 1 shown has multiple through holes 2, and each through hole 2 corresponds to a sub-capacitor.

[0003] After the plate-type multi-hole ceramic capacitor is manufactured, each of its through holes needs to be tested for electrical properties such as withstand voltage and insulation resistance. The traditional testing method is to use the test head of the test equipment to test each through hole one by one. When the number of through holes of the capacitor is large, this traditional testing method is time-consuming and inefficient, which is not conducive to the rapid delivery of products. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors, which can simultaneously test the electrical performance of multiple through holes, in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors includes a base plate, metal sleeves, metal compression springs, metal conical probes, a pressure plate, and weights. The lower ends of multiple vertical sleeves are respectively mounted on the base plate, and the vertical compression springs are placed inside the sleeves. The lower ends of multiple conical probes with conical tips at their upper ends are respectively placed inside the multiple sleeves and located at the upper ends of the corresponding compression springs. The pressure plate is located above the sleeves, and multiple pressure plate columns are provided below the pressure plate. The weights are placed on top of the pressure plate.

[0007] Preferably, to facilitate simultaneous energization of multiple conical probes and avoid electrification of the platform on which the tooling is placed, and to enable quick and convenient clamping of the sleeves, the base plate includes a metal base plate and a non-metal base plate. The metal base plate is placed on top of the non-metal base plate. The metal base plate has multiple vertical upper base plate through holes corresponding one-to-one with the multiple sleeves. The non-metal base plate has multiple vertical lower base plate through holes corresponding one-to-one with the multiple upper base plate through holes and having the same hole diameter. The upper hole diameter of the lower base plate through holes is increased to form a countersunk hole. The lower circumferential outer wall of the sleeve protrudes outward to form a sleeve convex ring. The lower part of the sleeve is placed in the corresponding lower base plate through hole, and the lower end of the sleeve is higher than the bottom of the non-metallic base plate. The sleeve convex ring is placed in the corresponding countersunk hole. The sleeve passes through the corresponding upper base plate through hole and is in close contact.

[0008] Preferably, in order to improve the conductivity between the conical probe and the sleeve, and to facilitate the assembly of the conical probe and the sleeve, the lower end of the conical probe is provided with a probe blind hole and the bottom of the upper end of the probe blind hole is conical. A metal ball is provided in the probe blind hole and the metal ball is located above the compression spring and in close contact. A compression spring mounting protrusion is provided in the sleeve below the compression spring. The lower end of the compression spring is fitted onto the compression spring mounting protrusion. The upper end of the sleeve is open and its circumferential edge is riveted inward to form a riveted edge to block the lower end of the conical probe.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention utilizes a design that integrates a base plate, sleeves, compression springs, conical probes, a pressure plate, and weights. In use, the plate-type multi-hole ceramic capacitor is placed above multiple conical probes, with the upper ends of the probes inserted into the through-holes of the capacitor. The pressure plate is then placed above the capacitor, and weights of appropriate weight and quantity are placed on it. This achieves electrical connection between the walls of the through-holes and the conical probes. Through the electrical transmission function of the compression springs and sleeves, the power supply clamps of the testing instrument are connected to the external electrodes of the capacitor and the sleeves. All sleeves can be connected via wires or a metal base plate. This allows for a single test of the electrical performance of the multiple through-holes of the capacitor, significantly improving testing efficiency and facilitating rapid product delivery. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a plate-type porous ceramic capacitor;

[0012] Figure 2This is a schematic diagram of the main cross-sectional structure of the high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors described in this utility model. Only a portion of the conical probe, sleeve, compression spring, and metal ball bearings are shown in the figure.

[0013] Figure 3 This is a front sectional view of the conical probe, sleeve, compression spring, and metal ball assembly of the high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors described in this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] like Figure 2 and Figure 3 As shown, the high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors according to this utility model includes a base plate (refer to the metal base plate 3 and non-metal base plate 4 below), metal sleeves 11, metal compression springs 10, metal conical probes 8, pressure plates 5, and weights 7. The lower ends of multiple vertical sleeves 11 are respectively mounted on the base plate. The vertical compression springs 10 are placed in the upper middle cavity 17 of the sleeves 11. The lower ends of multiple conical probes 8 with conical tips are respectively placed in the upper middle cavity 17 of multiple sleeves 11 and located at the upper end of the corresponding compression springs 10. The pressure plate 5 is located above the sleeves 11. Multiple pressure plate columns 6 are provided below the pressure plate 5. The weights 7 are placed on top of the pressure plate 5.

[0016] Preferably, in order to facilitate the synchronous energization of multiple conical probes 8 and avoid the platform on which this tooling is placed being energized, and in order to achieve the function of quick and convenient clamping of sleeves 11, the base plate includes a metal base plate 3 and a non-metallic base plate 4. The metal base plate 3 is placed on top of the non-metallic base plate 4. The metal base plate 3 is provided with multiple vertical upper base plate through holes 14 corresponding one-to-one with the multiple sleeves 11. The non-metallic base plate 4 is provided with multiple vertical lower base plate through holes 16 corresponding one-to-one with the multiple upper base plate through holes 14 and having the same hole diameter. The upper hole diameter of the lower base plate through holes 16 is increased to form a base plate countersunk hole 15. The middle and lower circumferential outer wall of the sleeve 11 protrudes outward to form a sleeve protrusion ring 13. The lower part of the sleeve 11 is placed in the corresponding lower base plate through hole 16 and the lower end of the sleeve 11 is higher than the bottom of the non-metallic base plate 4. The sleeve protrusion ring 13 is placed in the corresponding base plate countersunk hole 15. The sleeve 11 passes through the corresponding upper base plate through hole 14 and is in close contact.

[0017] Preferably, in order to improve the conductivity between the conical probe 8 and the sleeve 11, and to facilitate the assembly of the conical probe 8 and the sleeve 11, the lower end of the conical probe 8 is provided with a probe blind hole (not marked in the figure), and the bottom of the upper end of the probe blind hole is conical. The probe blind hole is provided with a metal ball 9, which is located above the compression spring 10 and in close contact. The sleeve 11 is provided with a compression spring mounting protrusion 12 located below the compression spring 10. The lower end of the compression spring 10 is fitted onto the compression spring mounting protrusion 12. The upper end of the sleeve 11 is open, and its circumferential edge is riveted inward to form a riveted edge to block the lower end of the conical probe 8.

[0018] like Figure 2 and Figure 3 As shown, during assembly, the corresponding conical probes 8, sleeves 11, compression springs 10, and metal balls 9 are first assembled together to form an elastic component. Then, the non-metallic base plate 4 is placed on the platform, and the lower ends of multiple sleeves 11 are inserted into multiple lower base plate through holes 16. The sleeve protrusions 13 are placed into the corresponding base plate countersunk holes 15. Then, the metal base plate 3 is placed on the non-metallic base plate 4 from top to bottom, and the upper and middle parts of multiple conical probes 8 and multiple sleeves 11 are respectively passed through multiple upper base plate through holes 14, thus realizing the rapid assembly of the elastic component with the metal base plate 3 and the non-metallic base plate 4. Then, the plate-type porous ceramic capacitor 1 is placed above the multiple conical probes 8, and the upper ends of the multiple conical probes 8 are respectively inserted into the plate-type porous ceramic capacitor 1. The porous ceramic capacitor 1 has multiple through holes 2. A pressure plate 5 is placed above the plate porous ceramic capacitor 1 via a pressure plate column 6. Weights 7 of appropriate weight and quantity are placed on the pressure plate 5. The walls of the multiple through holes 2 are electrically connected to the metal base plate 3 through multiple conical probes 8, multiple metal balls 9, multiple compression springs 10, and multiple sleeves 11. Then, the power supply clamp of the testing instrument (not shown in the figure) is connected to the outer electrode (located at its outer periphery) of the plate porous ceramic capacitor 1 and the metal base plate 3 respectively. The electrical performance test of the multiple through holes 2 of the plate porous ceramic capacitor 1 can be completed in one go, which significantly improves the testing efficiency and facilitates rapid product delivery.

[0019] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors, comprising a base plate, characterized in that: It also includes metal sleeves, metal compression springs, metal conical probes, pressure plates, and weights. The lower ends of multiple vertical sleeves are respectively mounted on the base plate. The vertical compression springs are placed inside the sleeves. The lower ends of multiple conical probes with conical tips at the top are respectively placed inside the multiple sleeves and located at the upper ends of the corresponding compression springs. The pressure plate is located above the sleeves. Multiple pressure plate columns are provided below the pressure plate. The weights are placed on top of the pressure plate.

2. The high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors according to claim 1, characterized in that: The base plate includes a metal base plate and a non-metal base plate. The metal base plate is placed on top of the non-metal base plate. The metal base plate has multiple vertical upper base plate through holes corresponding to multiple sleeves. The non-metal base plate has multiple vertical lower base plate through holes corresponding to multiple upper base plate through holes and having the same diameter. The upper diameter of the lower base plate through holes is increased to form a countersunk hole. The lower circumferential outer wall of the sleeve protrudes outward to form a sleeve convex ring. The lower part of the sleeve is placed in the corresponding lower base plate through hole and the lower end of the sleeve is higher than the bottom of the non-metal base plate. The sleeve convex ring is placed in the corresponding base plate countersunk hole. The sleeve passes through the corresponding upper base plate through hole and is in close contact.

3. The high-efficiency testing fixture for the electrical performance of plate-type porous ceramic capacitors according to claim 1 or 2, characterized in that: The lower end of the conical probe is provided with a probe blind hole, and the bottom of the upper end of the probe blind hole is conical. A metal ball is provided in the probe blind hole, and the metal ball is located above the compression spring and in close contact. A compression spring mounting protrusion is provided in the sleeve below the compression spring. The lower end of the compression spring is fitted onto the compression spring mounting protrusion. The upper end of the sleeve is open, and its circumferential edge is riveted inward to form a riveted edge to block the lower end of the conical probe.

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