CN106771398B - Test fixture for testing implosion or short circuit of capacitor - Google Patents
Test fixture for testing implosion or short circuit of capacitor Download PDFInfo
- Publication number
- CN106771398B CN106771398B CN201611193658.4A CN201611193658A CN106771398B CN 106771398 B CN106771398 B CN 106771398B CN 201611193658 A CN201611193658 A CN 201611193658A CN 106771398 B CN106771398 B CN 106771398B
- Authority
- CN
- China
- Prior art keywords
- test
- electrode
- test fixture
- mounting plate
- linear bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention provides a test fixture for testing implosion or short circuit of a capacitor, which comprises two groups of test assemblies oppositely arranged at two sides of the test fixture; the electrode mounting plates in the two groups of test assemblies are respectively and fixedly arranged at the telescopic ends of the air cylinders, the mounting ends of the air cylinders are fixedly arranged on the mounting plates, and the mounting plates are fixedly arranged on the bottom plate through the base; according to the invention, by arranging two groups of opposite test assemblies, the copper electrodes on the test assemblies are contacted with the elastic pieces of the test clamp to perform charge and discharge detection on the detected capacitor so as to test the implosion or short circuit phenomenon of the capacitor, and the problems that products with major hidden danger are difficult to detect and reject and cannot be prevented from flowing to a client side during the test are solved; the device has simple structure, and when the electrode contacts with the test spring, the contact is good, and the electrode can be applied to different heights of the test clamps of various automatic testers by adjusting related parts or realizing front-back and left-right adjustment.
Description
Technical Field
The invention belongs to the technical field of aluminum electrolytic capacitor manufacturing, and particularly relates to a test fixture for testing implosion or short circuit of a capacitor.
Background
In the manufacturing process of the product, the defects of burrs, electrolytic paper impurities and the like, which are generated by irregular trimming of aluminum foil, are inevitably avoided, however, the withstand voltage of the positions with burrs or electrolytic paper impurities is far lower than a normal value, the voltage is continuously increased in the aging process, the point discharge is generated once the voltage reaches a breakdown critical point, the initial stage shows spark, the explosion is possible to happen in the later stage, a small amount of products are not necessarily exploded, but the spark phenomenon has major hidden danger of explosion, and the spark phenomenon does not show any appearance from the appearance of the product, namely the capacitor implosion. Therefore, there is a need to develop a new testing method and means to enable such products to be detected and removed from the products with significant potential hazards during testing, so as to avoid the possibility of explosion during future use.
For the reasons above, in the testing link, a ring is added, the implosion or short circuit phenomenon of the capacitor is tested by adopting a proper method and means, and the product is obviously changed in appearance as much as possible so as to be removed on a machine, and the implosion or short circuit product of the capacitor can be directly identified from appearance in defective products so as to be disassembled for technical analysis later, so that the process and the production and manufacturing process are improved, the product quality is improved continuously, and the possibility that the defect flows to a client is completely eradicated.
Disclosure of Invention
In order to solve the technical problems, the invention provides the test fixture for testing the implosion or short circuit of the capacitor, which is provided with two groups of opposite test components, and the copper electrodes on the test components are used for conducting charge and discharge detection on the detected capacitor by contacting with the shrapnel of the test fixture so as to test the implosion or short circuit phenomenon of the capacitor, thereby solving the problems that products with serious hidden danger are difficult to be detected and removed during testing, and the products cannot be prevented from flowing to a client.
The invention is realized by the following technical scheme.
The invention provides a test fixture for testing implosion or short circuit of a capacitor, which comprises two groups of test assemblies oppositely arranged at two sides of the test fixture; the electrode mounting plates in the two groups of test assemblies are respectively and fixedly arranged at the telescopic ends of the air cylinders, the mounting ends of the air cylinders are fixedly arranged on the mounting plates, and the mounting plates are fixedly arranged on the bottom plate through the base;
the test assembly further comprises a shaft retainer ring B, a linear bearing B, a copper electrode and a terminal ring, wherein the linear bearing B is fixedly arranged in a corresponding hole of the electrode mounting plate, the copper electrode is arranged in an inner hole of the linear bearing B and is aligned with a spring piece on the test clamp, the copper electrode is further connected with the terminal ring, and the terminal ring is arranged between the mounting plate and the electrode mounting plate.
The linear bearing B is fixedly arranged in a corresponding hole of the electrode mounting plate through the shaft retainer ring B.
And the copper electrode is also sleeved with a compression spring.
And an adjusting air valve is also arranged on the air cylinder.
The mounting plate is also provided with a linear bearing A, the linear bearing A is fixedly arranged on two sides of the mounting hole of the air cylinder, a guide rod is movably arranged in the linear bearing A, and one end of the guide rod, which is close to the electrode mounting plate, is fixedly connected with the motor mounting plate.
The linear bearing A is fixed on the mounting plate through a shaft retainer ring A.
The distance between the end part of the copper electrode and the elastic sheet of the test clamp is 10mm.
And the interval error between the end parts of the copper electrodes in the two groups of oppositely arranged test assemblies and the elastic sheets on the two sides of the test fixture is less than 0.2mm.
The telescopic end of the cylinder is fixedly arranged in the mounting hole on the electrode mounting plate.
The cylinder is replaced with a hydraulic cylinder.
The invention has the beneficial effects that: by arranging two groups of opposite test assemblies, the copper electrodes on the test assemblies are contacted with the elastic sheets of the test fixture to perform charge and discharge detection on the detected capacitor so as to test the implosion or short circuit phenomenon of the capacitor, and the problems that products with major hidden danger are difficult to detect and reject and cannot be prevented from flowing to a client side during the test are solved; the device simple structure, when electrode and test shell fragment contact, the contact is good, and the electrode is through adjusting relevant part, or realizes back-and-forth, control adjustment, through the modification mounting panel size, applicable in the application on various automatic test machine test fixture different altitudes.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: the test fixture comprises a 1-bottom plate, a 2-fastening screw, a 3-base, a 4-shaft retainer ring A, a 5-linear bearing A, a 6-cylinder, a 7-guide rod, an 8-mounting plate, a 9-shaft retainer ring B, a 10-electrode mounting plate, an 11-linear bearing B, a 12-copper electrode, a 13-compression spring, a 14-adjusting air valve, a 15-terminal ring and a 16-test fixture spring piece.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
The test fixture for testing capacitor implosion or short circuit shown in FIG. 1 comprises two groups of test components oppositely arranged at two sides of the test fixture; the electrode mounting plates 10 in the two groups of test assemblies are respectively and fixedly arranged at the telescopic ends of the air cylinders 6, the mounting ends of the air cylinders 6 are fixedly arranged on the mounting plates 8, and the mounting plates 8 are fixedly arranged on the bottom plate 1 through the base 3; the test assembly further comprises a shaft retainer ring B9, a linear bearing B11, copper electrodes 12 and a terminal ring 15, wherein the linear bearing B11 is fixedly installed in a corresponding hole of the electrode mounting plate 10, the copper electrodes 12 are installed in inner holes of the linear bearing B11 and aligned with elastic pieces on the test fixture, the copper electrodes 12 are further connected with the terminal ring 15, and the terminal ring 15 is arranged between the mounting plate 8 and the electrode mounting plate 10. The distance between the end of the copper electrode 12 and the spring plate of the test jig was 10mm. The spacing error between the ends of the copper electrodes 12 in the two sets of oppositely arranged test assemblies and the shrapnel on both sides of the test fixture is less than 0.2mm. The copper electrode 12 is also sleeved with a compression spring 13.
The linear bearing B11 is fixedly mounted in a corresponding hole of the electrode mounting plate 10 through a shaft retainer ring B9.
The cylinder 6 is also provided with an adjusting air valve 14. The cylinder 6 may also be replaced by a hydraulic cylinder.
The mounting plate is also provided with a linear bearing A, the linear bearing A is fixedly arranged on two sides of the mounting hole of the air cylinder, a guide rod is movably arranged in the linear bearing A, and one end of the guide rod, which is close to the electrode mounting plate, is fixedly connected with the motor mounting plate. The linear bearing A is fixed on the mounting plate through a shaft retainer ring A. The telescopic end of the air cylinder 6 is fixedly arranged in the mounting hole on the electrode mounting plate 10, so that the mounting is convenient, and copper electrodes 12 on the two groups of test assemblies are matched.
The test fixture of the invention mainly applies a method of high current impact to the capacitor, so that the implosion or short-circuited capacitor is detected in a test procedure and the bottom of the capacitor is raised, thus the subsequent processing and fault analysis of defective products are more convenient to sort. The project implementation mainly comprises a mechanical part and a circuit part, wherein the mechanical part is required to be firmly installed, is in good and reliable contact with the elastic sheet of the test clamp, and does not change the existing transmission and other detection as much as possible. The circuit part requirements not only meet the requirement of heavy current impact, the charging and discharging beats of the impact are consistent with the beats of production equipment, the heavy current impact result is accurate, and each product passes through the cyclic process of heavy current impact and discharging for three times.
The device simple structure, when electrode and test shell fragment contact, the contact is good, and the electrode is through adjusting relevant part, or realizes back-and-forth, control adjustment, through the modification mounting panel size, applicable in the application on various automatic test machine test fixture different altitudes. The related defective products are subjected to bottom bulging and are removed into defective product box areas during testing, and the defective products are easily sorted out from appearance so as to be subjected to subsequent technical analysis.
During installation, 6 linear bearings 11 respectively penetrate into bearing holes of an electrode mounting plate 10, shaft retainer rings B9 are respectively clamped into clamping grooves to limit axial movement of the linear bearings 11, 6 copper electrodes 12 are respectively sleeved with compression springs 13 and then penetrate into the linear bearings 11, terminal rings 15 at one end of a high-temperature wire are fixedly installed on the rear end surfaces of the electrodes by using screws M4 x 8, the copper electrodes 12 are compressed and released, and the copper electrodes 12 slide flexibly back and forth in the linear bearings 11; after two linear bearings 5 penetrate into a cylinder mounting plate 8 and are clamped into clamping grooves by shaft retainer rings A4 to limit axial movement of the linear bearings 5, an electrode assembly is moved back and forth, a guide rod 7 is required to slide flexibly in the linear bearings 5, then after the guide rod 7 is fastened by nuts, the mounting ends of CJ16-15 cylinders are mounted in mounting holes of the cylinder mounting plate 8 and are fastened by nuts, telescopic rods of the CJ16-15 cylinders penetrate into corresponding holes of an electrode mounting plate 10 and are fastened by nuts, the assembled assembly is fastened and mounted on a base plate 1 and a base assembly which are fastened and connected by fixing screws, the assembly is debugged, the distance between a copper electrode 12 in a free state and a test clamp spring plate is 10mm, the test electrode is aligned with the center line of the test clamp spring plate, two adjusting air valves 14 are mounted at two interfaces of the cylinders, the other end of the air channel controller is connected outwards, the advancing and retreating beats of the cylinders are verified to be consistent with the advancing beats of the test clamp, and when the test clamp is stopped, the electrode is just pressed on the spring plate, and when the clamp moves, the copper electrode 12 retreats to the initial position. And the test assembly on the other side is fixedly arranged on the other side of the test fixture, the electrode is aligned with the vertical central line of the elastic sheet of the test fixture, and the deviation of the distance value between the elastic sheet of the test fixture and the distance value between the copper electrode 12 of the front group of test assemblies and the elastic sheet is within 0.2mm, so that the installation is completed. The electrodes are numbered from front to back from # 1 to # 6. More copper electrodes 12 may be installed as desired.
When the capacitor is in operation, the high-voltage direct-current power supply controls the solid-state relay through the PLC, the solid-state relay controls the alternating-current contactor to charge the 3 groups of the high-capacity capacitors with the voltage of 450V6800 mu F, the direct-current solid-state relay controls the 3 groups of the capacitors to discharge the product after the charging is saturated, and when the internal explosion or short circuit phenomenon exists in the capacitor product, the bottom of the capacitor is bulged after the impact of high current, and the capacitor can be selected through appearance. And after each large current is impacted, the charging is performed after the discharging is performed through a 1K100W resistor, and the charging is repeated for three times, so that the reliability is improved.
When the machine is adjusted, the mechanism only needs to confirm that the electrode is basically aligned to the vertical center line of the elastic piece of the test fixture, the air cylinder pushes the electrode to advance and retreat, the action is consistent with the machine beat, and products with different specifications are corresponding.
The device has more parts, but few types, lower part processing cost, easy market purchase of standard parts such as linear bearings, check rings and fasteners, easy purchase of general parts CJ16-15 air cylinders and stable performance, and adopts the specifications listed in the national standard. And the assembly is simple and convenient to adjust, guarantees the realization of project target requirements, and can thoroughly prevent the occurrence and circulation of the defects such as implosion, short circuit and the like before the test procedure.
Claims (7)
1. A test fixture for testing capacitor implosion or short circuit includes two sets of test components of setting up in test fixture both sides relatively, its characterized in that: the electrode mounting plates (10) in the two groups of test assemblies are respectively and fixedly mounted at the telescopic ends of the air cylinders (6), the mounting ends of the air cylinders (6) are fixedly mounted on the mounting plates (8), and the mounting plates (8) are fixedly mounted on the bottom plate (1) through the base (3);
the test assembly further comprises a shaft retainer ring B (9), a linear bearing B (11), a copper electrode (12) and a terminal ring (15), wherein the linear bearing B (11) is fixedly arranged in a corresponding hole of the electrode mounting plate (10), the copper electrode (12) is arranged in an inner hole of the linear bearing B (11) and is aligned with a spring piece on the test clamp, the copper electrode (12) is further connected with the terminal ring (15), and the terminal ring (15) is arranged between the mounting plate (8) and the electrode mounting plate (10);
a compression spring (13) is sleeved on the copper electrode (12);
an adjusting air valve (14) is further arranged on the air cylinder (6);
the mounting plate (8) is further provided with a linear bearing A (5), the linear bearing A (5) is fixedly arranged on two sides of a mounting hole of the air cylinder (6), the linear bearing A (5) is further movably provided with a guide rod (7), and one end of the guide rod (7) close to the electrode mounting plate (10) is fixedly connected with the motor mounting plate.
2. A test fixture for testing capacitor implosions or shorts as set forth in claim 1 wherein: the linear bearing B (11) is fixedly arranged in a corresponding hole of the electrode mounting plate (10) through the shaft retainer ring B (9).
3. A test fixture for testing capacitor implosions or shorts as set forth in claim 1 wherein: the linear bearing A (5) is fixed on the mounting plate (8) through the shaft retainer ring A (4).
4. A test fixture for testing capacitor implosions or shorts according to any one of claims 1 to 2 wherein: the distance between the end of the copper electrode (12) and the shrapnel of the test clamp is 10mm.
5. A test fixture for testing capacitor implosions or shorts according to any one of claims 1 to 2 wherein: the spacing error between the end parts of the copper electrodes (12) in the two groups of oppositely arranged test assemblies and the elastic sheets on the two sides of the test fixture is less than 0.2mm.
6. A test fixture for testing capacitor implosions or shorts according to any one of claims 1 to 2 wherein: the telescopic end of the air cylinder (6) is fixedly arranged in a mounting hole on the electrode mounting plate (10).
7. A test fixture for testing capacitor implosions or shorts according to any one of claims 1 to 2 wherein: the cylinder (6) is replaced by a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193658.4A CN106771398B (en) | 2016-12-21 | 2016-12-21 | Test fixture for testing implosion or short circuit of capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193658.4A CN106771398B (en) | 2016-12-21 | 2016-12-21 | Test fixture for testing implosion or short circuit of capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106771398A CN106771398A (en) | 2017-05-31 |
| CN106771398B true CN106771398B (en) | 2023-07-28 |
Family
ID=58893857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611193658.4A Active CN106771398B (en) | 2016-12-21 | 2016-12-21 | Test fixture for testing implosion or short circuit of capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106771398B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541371B (en) * | 2018-11-19 | 2021-02-23 | 贵州中航聚电科技有限公司 | Chip tantalum capacitor measuring tool |
| CN110187226A (en) * | 2019-06-28 | 2019-08-30 | 无锡宏广电容器有限公司 | Polypropylene film capacitor short circuit dischange device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070496U (en) * | 1990-04-09 | 1991-01-30 | 李伟麟 | Clamping apparatus for capacitor charge ageing device |
| JPH10217069A (en) * | 1997-01-30 | 1998-08-18 | Niigata Eng Co Ltd | Approach-contact detecting method between work and tool and device thereof |
| CN204116531U (en) * | 2014-08-07 | 2015-01-21 | 安徽源光电器有限公司 | A kind of capacitor finished product pressure resistant testing device |
| CN204255994U (en) * | 2014-12-11 | 2015-04-08 | 铜陵市启动电子制造有限责任公司 | A kind of thin-film capacitor fuse test fixture |
| CN204462195U (en) * | 2015-01-29 | 2015-07-08 | 京东方光科技有限公司 | Electrical part test fixture |
| CN204882730U (en) * | 2015-03-24 | 2015-12-16 | 集盛星泰(北京)科技有限公司 | Ultracapacitor system voltage testing arrangement |
| CN204584484U (en) * | 2015-04-21 | 2015-08-26 | 浙江工业大学 | Tool-electrode low-frequency vibration electrolytic machining device |
| CN205193191U (en) * | 2015-12-01 | 2016-04-27 | 江苏集盛星泰新能源科技有限公司 | Ultracapacitor system test fixture |
| CN206281880U (en) * | 2016-12-21 | 2017-06-27 | 广西吉光电子科技有限公司 | It is a kind of for test capacitors implosion or the test fixture of short circuit |
-
2016
- 2016-12-21 CN CN201611193658.4A patent/CN106771398B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106771398A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106771398B (en) | Test fixture for testing implosion or short circuit of capacitor | |
| CN202631575U (en) | Lithium-ion cell electric insulation performance detecting device and testing clamp thereof | |
| CN101551302B (en) | Tester for testing ignition capability and voltage resistant capability of sparking plug and testing method and uses | |
| CN110824312A (en) | GIS equipment defect simulation analysis equipment and method | |
| CN206281880U (en) | It is a kind of for test capacitors implosion or the test fixture of short circuit | |
| CN105510816B (en) | Relay debugs machine automatically | |
| CN204101682U (en) | Vacuum circuit breaker pressure resistant testing device | |
| CN204028130U (en) | A kind of large gauge breaker of plastic casing short circuit curve test fixture | |
| CN204088498U (en) | A kind of lithium ion battery short circuit tester | |
| CN207318530U (en) | Medium-sized low voltage motor wraps detection novel clamp in vain | |
| CN215997644U (en) | Short circuit test wire | |
| CN211148863U (en) | Battery charge-discharge test modularization device | |
| CN109541271B (en) | Adjustable probe on electronic lead terminal detection device | |
| CN203849295U (en) | Pneumatic fixture of moulded case circuit breaker | |
| CN211206740U (en) | Battery cell internal resistance testing tool | |
| CN210074405U (en) | Hanging cage type terminal electric energy meter quick-connecting device | |
| CN107643496B (en) | Power module testing device | |
| CN109444618A (en) | A kind of electronic component Current Voltage ageing tester and method | |
| CN212410762U (en) | Live voltage-withstanding test bench for direct current contactor | |
| CN220490965U (en) | Coil detection equipment | |
| CN205581637U (en) | Measurement of power rack for machine controller | |
| CN216351029U (en) | Voltage-withstanding testing device | |
| CN218470860U (en) | Multi-station pre-charging mechanism of capacitor aging machine | |
| CN214747593U (en) | Moving contact position calibration device for circuit breaker | |
| CN216116634U (en) | GIS circuit breaker energy storage spring fatigue test mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |