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            CN
            EN

            The invention relates to a test method for high voltage ceramic capacitor

            Source: Time:2018-12-07 17:07:07 views:

            The invention relates to a high-voltage ceramic capacitor test method belonging to the field of capacitor manufacturing, in particular to a high-voltage ceramic capacitor test method.

            Successful Industrial Huizhou Co., Ltd.

            Chen Zetong Yang Hao

            Technical field:

              The high voltage ceramic capacitor testing method of the invention belongs to the field of capacitor manufacturing, and particularly relates to a high voltage ceramic capacitor testing method.

            Background technique

              Conventional ceramic capacitors have excellent dielectric constants and are commonly used in filtering, noise canceling, DC isolation, and timing circuits.

              With the development of electric locomotives, automatic loading and unloading of ports, the emergence of working robots, the demand for high-voltage ceramic capacitors is increasing, and the voltage tolerance requirements are getting higher and higher. The conventional high-voltage ceramic capacitors with a pitch of 5 mm are tested for 2KV withstand voltage in air. Pulling arcs, jumping fires, causing insecurity, and being greatly affected by climate humidity, poor stability, and urgent need for improvement.

            Summary of the invention

              In view of the deficiencies of the prior art described above, the present invention provides a test method for a high voltage ceramic capacitor.

              In order to solve the above technical problems, the technical solution adopted by the utility model is:

              The invention provides a high-voltage ceramic capacitor testing method, comprising: a high-voltage ceramic capacitor to be tested, a fuel tank, a jig and a withstand voltage tester, wherein the high-voltage ceramic capacitor to be tested is inserted into the pin of the jig, the There are two electrodes in the pin, and a plurality of electrodes are connected by wires, and then led out by the lead pile, and the two output poles of the withstand voltage tester are connected.

              Further, the jig is placed in an oil tank, the oil box is made of an insulating material, and there is no leakage, and the oil tank is filled with insulating oil, and the withstand voltage of the insulating oil should be selected to be greater than the maximum value of the measured voltage.

              After the further fixture is placed in the oil, the high-voltage output switch of the withstand voltage tester can be turned on for testing.

              Further, the jig is made of an insulating material, the lower surface is provided with a foot pad, and the upper plane is provided with a pin made of a plurality of conductive metal shrapnel, the lower end of the pin is fixed on the plane of the insulating material, and the upper end is a R port convenient capacitor. The pin is inserted, the multi-pin pin is connected with the same pole with a wire, and two lead-out piles are arranged on the wire, and the pressure tester is connected externally, and a gantry-shaped handle is also arranged on the plane of the insulating material, which is convenient. Dip or put the oil tank.

              The beneficial effects of the invention are:

             The invention provides a test method for a high-voltage ceramic capacitor, which changes the unstable and unsafe factors in the original production test, and has low investment, low cost, and economical and practical.

            BRIEF DESCRIPTION OF THE DRAWINGS:

            1 is a schematic view of a fixture and a fuel cartridge of a high voltage ceramic capacitor test method in an embodiment.

            2 is a diagram showing the minimum oil line diagram of a test method for a high voltage ceramic capacitor in an embodiment.

            Specific embodiment:

              The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

            As shown in FIG. 1 , the embodiment provides a high-voltage ceramic capacitor testing method, including a high-voltage ceramic capacitor to be tested, a fuel cartridge, a jig and a finished pressure tester not shown in the figure, and the oil cartridge 1 is made of an insulating material. The pentahedron should not leak. The opening should be able to freely insert or remove the fixture 2. The plane of the fixture 2 is an insulating plate, and the insulating plate is provided with protruding legs 2-11, 2-12, 2-13. 2-14 (not shown), the other side is provided with 2-4 and 2-5 pin (pair), the number of logarithm is set according to production requirements, pinch 2-4 and 2-5 test The time is divided into two electrodes, which are respectively connected by wires 2-2 and 2-3, and are integrated to the lead piles 2-6 and 2-7, and are connected with the test port of the withstand voltage tester, and the jig 2 is further provided with The gantry-shaped handle 2-1 facilitates the immersion of the jig 2 or the inner cavity of the oil tank 1.

               During the test, the oil tank 1 is filled with high-pressure resistant insulating oil. The pressure resistance value of the oil should be greater than the maximum value of the tested high pressure. Generally, the insulating oil of 10KV to 100kv is used. The oil filling height in the oil tank 1 should meet the minimum shown in Figure 2. Oil line requirements.

              Insert the pins of the capacitor 3 into the 2-4 and 2-5 pins on the fixture 2. After the whole board is full, the test port of the withstand voltage tester and the lead piles 2-6 and 2 on the jig 2 are inserted. -7 docking (it is forbidden to open the tester at this time), extract the gantry 2-1 and immerse it in the box body 1 filled with insulating oil. At this time, the pressure tester can be opened for testing. If there is breakdown during the test, If the flashover is not qualified, take it out with the insulating clip. After the test is finished, remove the oil and clean it, and enter the next process according to the conventional process.

              The high-voltage ceramic capacitor testing method provided by the invention utilizes the insulation property of the high insulating oil, improves the arc jumping in the conventional test, is unfavorable due to the large air humidity restriction, the quality is affected, and the test environment is stable and reliable. It has the characteristics of small investment and strong suitability.

            The above disclosure is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Therefore, the equivalent changes made by the scope of the present invention are still within the scope of the present invention.

            Copyright © 2018 Success industry (huizhou) co., LTD All Rights Reserved|Technical support:huizhoubeiyi

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