Efficient clamping tool for testing electrical performance of plate-type array capacitor

Abstract

The utility model discloses an efficient clamping tool for testing the electrical performance of a plate-type array capacitor, and the tool comprises an insulating bottom plate, a metal wire pad, an insulating frame, a fixed vertical column, a movable vertical column, an insulating clamping plate, and a metal elastic sheet, the metal wire pad is disposed on the insulating bottom plate, and the insulating frame is disposed on the metal wire pad and is connected with the insulating bottom plate. Sliding grooves are formed in the two opposite side frames of the insulating frame, the lower ends of the two movable stand columns are installed in the two sliding grooves respectively, the lower ends of the two fixed stand columns are installed on the insulating frame respectively, one insulating clamping plate is connected with the two movable stand columns respectively, and the other insulating clamping plate is connected with the two fixed stand columns respectively. The two metal elastic sheets are installed on the sides, close to each other, of the two insulating clamping plates respectively. According to the utility model, synchronous and reliable testing of electrical properties such as voltage resistance, insulation performance and the like of a plurality of sub-capacitors of the same plate-type array capacitor is realized at a time, and the testing efficiency, the testing accuracy and the testing safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test tool of plate type array capacitor especially to a high -efficient clamping tool for plate type array capacitor electric performance test. BACKGROUND

[0002] The plate type array capacitor is a capacitor formed by arraying a plurality of sub capacitors on a dielectric plate (generally a porcelain dielectric plate), mainly used for filtering power supply signals or other electrical signals, a plurality of through holes are provided on the dielectric plate and a metal layer is provided on the hole wall of each through hole to form the inner electrode of the sub capacitor corresponding to the through hole, and a metal layer is provided on the outer peripheral edge of the dielectric plate to form the outer electrode of all sub capacitors, and a contact (both ends of which are a pin or a socket, or one end is a pin and the other end is a socket) passes through each through hole, that is, the inner electrode of the sub capacitor is led out through the contact to be connected with the cable to be filtered.

[0003] The plate type array capacitor needs to be tested for voltage resistance and insulation performance after production, and the traditional method is to use the test head of the test equipment to clamp and test all the contacts and outer electrodes respectively, in actual application, the contacts of a plate type array capacitor may reach dozens to hundreds, and the traditional test method is time-consuming and inefficient, which is not conducive to the rapid delivery of products, and the connection reliability is low by using probe point connection, if the contact is not good, there is a risk of arc flying during voltage resistance test, causing product misjudgment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above problems and provides a high -efficient clamping tool for plate type array capacitor electric performance test.

[0005] The utility model realizes the above purpose through the following technical scheme:

[0006] The utility model provides a high -efficient clamping frock for plate array capacitor electric performance test, including insulating baseplate, still include wire gauze, insulating frame, fixed column, mobile column, insulating clamping plate and metal elastic sheet, the wire gauze that transverse and by multiple metal wires staggered arrangement forms mesh structure is placed on the top of transverse insulating baseplate, the insulating frame that transverse and is equipped with vertical center through -hole is placed on the top of wire gauze and is connected with insulating baseplate, the edge of wire gauze is located between insulating baseplate and the frame of insulating frame, be equipped with slide groove on the opposite two side frames of insulating frame, the lower end of two vertical mobile columns is installed in two slide grooves respectively and can slide and fixed, the lower end of two vertical fixed columns is installed on the insulating frame respectively, the lateral both ends of one insulating clamping plate are connected with two mobile columns respectively, the lateral both ends of another insulating clamping plate are connected with two fixed columns respectively, the area between two insulating clamping plates is located above the center through -hole of insulating frame, two metal elastic sheets are installed on two insulating clamping plates respectively and are close to each other on one side.

[0007] As preferred, in order to reliably contact and connect with the outer electrode of the edge of the dielectric plate of the plate array capacitor, the metal elastic sheet comprises a strip-shaped copper sheet and copper fins, a plurality of elastic copper fins are connected with one side of the strip-shaped copper sheet, the copper fins and the strip-shaped copper sheet have an included angle of 10-45°, the strip-shaped copper sheet is installed in the corresponding groove on the corresponding insulating clamping plate, and the free end of the copper fin extends beyond the surface of the corresponding insulating clamping plate in a natural state. The metal elastic sheet is preferably a grounding elastic sheet in the prior art.

[0008] As preferred, in order to further improve the reliability of the electrical contact and connection with the outer electrode of the edge of the dielectric plate of the plate array capacitor, the insulating clamping plate and the strip-shaped copper sheet are both arc-shaped, and the middle part of the area between the two insulating clamping plates has the maximum width.

[0009] As preferred, in order to facilitate the relative sliding and fixing function between the mobile column and the slide groove, the slide groove is a reverse "T"-shaped groove, the mobile column is an "L"-shaped column, and two connecting screws are connected with the screw holes on the sliders in the corresponding slide grooves after penetrating the through holes in the horizontal plates at the lower ends of the two mobile columns from top to bottom.

[0010] As preferred, in order to facilitate the wiring operation between the test equipment, the edge of the wire gauze is electrically connected with a first wiring part for electrical connection with the test equipment, and the end of one or two metal elastic sheets is electrically connected with a second wiring part for electrical connection with the test equipment.

[0011] The utility model discloses a high -efficient clamping frock for plate array capacitor electric performance test, including insulating baseplate, still include wire gauze, insulating frame, fixed column, mobile column, insulating clamping plate and metal elastic sheet, the wire gauze that transverse and by multiple metal wires staggered arrangement forms mesh structure is placed on the top of transverse insulating baseplate, the insulating frame that transverse and is equipped with vertical center through -hole is placed on the top of wire gauze and is connected with insulating baseplate, the edge of wire gauze is located between insulating baseplate and the frame of insulating frame, be equipped with slide groove on the opposite two side frames of insulating frame, the lower end of two vertical mobile columns is installed in two slide grooves respectively and can slide and fixed, the lower end of two vertical fixed columns is installed on the insulating frame respectively, the lateral both ends of one insulating clamping plate are connected with two mobile columns respectively, the lateral both ends of another insulating clamping plate are connected with two fixed columns respectively, the area between two insulating clamping plates is located above the center through -hole of insulating frame, two metal elastic sheets are installed on two insulating clamping plates respectively and are close to each other on one side.

[0012] The metal wire mat formed by the multiple metal wires staggered arrangement forms a net structure, can be reliably electrically connected with one end of multiple contact pieces of the plate type array capacitor at the same time, overcomes the disadvantage that the one end of multiple contact pieces is difficult to be reliably electrically connected with the plane metal plate (because the processing error between up to dozens of hundreds of contact pieces causes the one end of multiple contact pieces to be difficult to be in the same plane), reliably electrically connected between the outer electrode of the edge of the dielectric plate of the plate type array capacitor by the two metal elastic sheets installed on the insulating clamping plate, thereby realizing the synchronous reliable test of the voltage resistance, insulation performance and other electrical properties of multiple sub-capacitors of the same plate type array capacitor at one time, and the whole plate type array capacitor is qualified when all the sub-capacitors are qualified, and the whole plate type array capacitor is unqualified when any one or more sub-capacitors is unqualified, and the test efficiency, test accuracy and test safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective structure schematic view of the high-efficiency clamping tool for electrical performance test of the plate type array capacitor in use according to the utility model;

[0014] Figure 2 is a front view structure schematic view of the high-efficiency clamping tool for electrical performance test of the plate type array capacitor in use according to the utility model;

[0015] Figure 3 is a top view structure schematic view of the high-efficiency clamping tool for electrical performance test of the plate type array capacitor in use according to the utility model;

[0016] Figure 4 is a top view structure schematic view of the insulating base plate and the metal wire mat of the high-efficiency clamping tool for electrical performance test of the plate type array capacitor according to the utility model;

[0017] Figure 5 is a top view structure schematic view of the insulating frame of the high-efficiency clamping tool for electrical performance test of the plate type array capacitor according to the utility model. DETAILED DESCRIPTION

[0018] The utility model will be further described in connection with the drawings:

[0019] As Figures 1-5As shown in the utility model discloses a high -efficient clamping tool for the electric performance test of plate type array capacitor, including insulating base plate 3, wire mat 10, insulating frame 2, fixed column 1, mobile column 11, insulating clamping plate 7 and metal elastic sheet 5, the wire mat 10 that horizontal and by multiple metal wires staggered arrangement forms mesh structure is placed on the top of horizontal insulating base plate 3, the insulating frame 2 that horizontal and is equipped with vertical center through -hole 13 is placed on the top of wire mat 10 and is connected with insulating base plate 3, the edge of wire mat 10 is located between the frame of insulating base plate 3 and insulating frame 2, the opposite two side frames of insulating frame 2 are equipped with sliding groove 9, and the lower end of two vertical mobile columns 11 is respectively installed in two sliding grooves 9 and can slide and fixed, and the lower end of two vertical fixed columns 1 is respectively installed on insulating frame 2, and the horizontal two ends of one insulating clamping plate 7 are respectively connected with two mobile columns 11, and the horizontal two ends of another insulating clamping plate 7 are respectively connected with two fixed columns 1, and the area between two insulating clamping plates 7 is located above the center through -hole 13 of insulating frame 2, and two metal elastic sheets 5 are respectively installed on the side close to each other of two insulating clamping plates 7.

[0020] As Figures 1-5 The utility model discloses a kind of more optimized specific structures as shown in the utility model further discloses the following:

[0021] To reliably contact and connect with the outer electrode of the edge of the dielectric plate 6 of plate type array capacitor, the metal elastic sheet 5 includes a strip-shaped copper sheet (not visible in the figure) and copper fins (not separately marked in the figure), a plurality of elastic copper fins are connected to one side of the strip-shaped copper sheet, the copper fins and the strip-shaped copper sheet have an included angle of 10-45°, the strip-shaped copper sheet is installed in the corresponding groove on the corresponding insulating clamping plate 7, and the free end of the copper fin extends beyond the corresponding surface of the corresponding insulating clamping plate 7 in the natural state. The metal elastic sheet 5 is preferably a grounding elastic sheet in the prior art.

[0022] To further improve the reliability of electrical contact and connection with the outer electrode of the edge of the dielectric plate 6 of plate type array capacitor, the insulating clamping plate 7 and the strip-shaped copper sheet are both arc-shaped, and the middle part of the area between the two insulating clamping plates 7 has the maximum width.

[0023] To facilitate the relative sliding and fixing function between the mobile column 11 and the sliding groove 9, the sliding groove 9 is a reverse "T" shaped groove, the mobile column 11 is an "L" shaped column, and two connecting screws (not marked in the figure) pass through the through holes in the horizontal plates (not separately marked in the figure) at the lower ends of the two mobile columns 11 from top to bottom and are connected to the screw holes on the sliders (not shown in the figure, but easy to understand) placed in the corresponding sliding grooves 9.

[0024] To facilitate the rapid implementation of the wiring operation with the test equipment, the edge of the wire pad 10 is electrically connected to a first wiring member 12 for electrically connecting to the test equipment, and the end of one or two (one in the figure) metal elastic pieces 5 is electrically connected to a second wiring member 4 for electrically connecting to the test equipment.

[0025] As Figures 1-5 shown, during use, first move the two movable columns 11 to a distance farther from the fixed column 1, then place the plate-type array capacitor to be tested in the area between the two insulating clamping plates 7 and make one side of the dielectric plate 5 as close as possible to the metal elastic piece 5 on the insulating clamping plate 7 connected to the fixed column 1. At this time, the lower ends of the plurality of contact members 8 are placed on the wire pad 10, and then move the two movable columns 11 in the direction closer to the fixed column 1 until the metal elastic piece 5 on the insulating clamping plate 7 connected to the movable column 11 is in close contact with the other side of the dielectric plate 6, and then lock the two movable columns 11. At this time, the lower ends of all the contact members 11 are electrically connected to the wire pad 10, the outer electrodes at the edge of the dielectric plate 6 are electrically connected to the metal elastic piece 5, and then respectively connect the two test clips of the test equipment (not shown in the figure) to the first wiring member 12 and the second wiring member 4 correspondingly, and then the electrical performance tests such as withstand voltage and insulation performance can be started. If all the sub-capacitors are qualified after the test, then the entire plate-type array capacitor is qualified. If one or more of the sub-capacitors are unqualified, the unqualified indicators can be reflected by the test equipment, and then the entire plate-type array capacitor is unqualified, and there is no need to determine which specific sub-capacitor is unqualified. Of course, if it is necessary to determine which specific sub-capacitor is unqualified for the purpose of reprocessing, it does not belong to the problem solved by the present invention.

[0026] The above embodiments are only the preferred embodiments of the present invention and do not limit the technical solutions of the present invention. As long as the technical solutions that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the present invention.

Claims

1. A high efficiency clamping fixture for plate array capacitor electrical performance testing comprising an insulating base plate, characterized in that: The metal wire mat, the insulating frame, the fixed column, the moving column, the insulating clamping plate and the metal elastic sheet are included, the metal wire mat arranged in a net structure by a plurality of metal wires arranged in a staggered manner in a transverse direction is arranged on the insulating bottom plate in a transverse direction, the insulating frame arranged in a transverse direction and provided with a vertical central through hole is arranged on the metal wire mat and connected with the insulating bottom plate, the edges of the metal wire mat are arranged between the insulating bottom plate and the frame of the insulating frame, the opposite two side frames of the insulating frame are provided with sliding grooves, the lower ends of the two vertical moving columns are respectively arranged in the two sliding grooves and can be slid and fixed, the lower ends of the two vertical fixed columns are respectively arranged on the insulating frame, the transverse two ends of one insulating clamping plate are respectively connected with the two moving columns, the transverse two ends of another insulating clamping plate are respectively connected with the two fixed columns, the area between the two insulating clamping plates is arranged above the central through hole of the insulating frame, and the two metal elastic sheets are respectively arranged on the side of the two insulating clamping plates close to each other.

2. The high efficiency clamping fixture for plate array capacitor electrical performance test according to claim 1, characterized in that: The metal elastic sheet includes a strip-shaped copper sheet and a plurality of copper fins with elasticity, the copper fins are connected with one side of the strip-shaped copper sheet, the copper fins and the strip-shaped copper sheet have an included angle of 10-45°, the strip-shaped copper sheet is arranged in a corresponding groove on the corresponding insulating clamping plate, and the free end of the copper fin extends from the surface of the corresponding insulating clamping plate in a natural state.

3. The high efficiency clamping fixture for plate array capacitor electrical performance test of claim 2, wherein: The insulating clamping plate and the strip-shaped copper sheet are both circular arc-shaped, and the middle part of the area between the two insulating clamping plates has the maximum width.

4. The high efficiency clamping fixture for plate array capacitor electrical performance test according to any one of claims 1-3, characterized in that: The sliding groove is a reverse "T" shaped groove, the moving column is an "L" shaped column, and two connecting screws are arranged in the through holes in the horizontal plates at the lower ends of the two moving columns from top to bottom and connected with the screw holes on the sliding blocks arranged in the corresponding sliding grooves.

5. The high efficiency clamping fixture for plate array capacitor electrical performance test according to any one of claims 1-3, characterized in that: The edges of the metal wire mat are electrically connected with first connecting wires for electrical connection with test equipment, and the ends of one or two metal elastic sheets are electrically connected with second connecting wires for electrical connection with test equipment.

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