CN108226581B - Film electric weakness tester capable of improving test precision - Google Patents
Film electric weakness tester capable of improving test precision Download PDFInfo
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- CN108226581B CN108226581B CN201810111096.7A CN201810111096A CN108226581B CN 108226581 B CN108226581 B CN 108226581B CN 201810111096 A CN201810111096 A CN 201810111096A CN 108226581 B CN108226581 B CN 108226581B
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- plate
- film
- insulating
- conductive rubber
- rubber plate
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a film electric weakness tester capable of improving test precision, which comprises a rack (1), a connecting rod (2) fixedly arranged on the rack (1), rotatable insulating blocks (3) arranged at two sides of the connecting rod (2), an insulating plate (4) fixedly arranged at one side of the insulating block (3) and a conducting device fixedly arranged on the insulating plate (4). The conductive rubber plate is not easy to deform, can rotate and fully and flexibly contact with the film surface, does not cause no voltage to be applied between partial areas of the film, and improves the testing precision.
Description
Technical Field
The invention relates to an electrical weakness tester for testing electrical performance of an electrical plastic film, in particular to a film electrical weakness tester capable of improving testing precision.
Background
The existing electrical plastic film electrical weakness tester generally comprises a sample roller, a conductive rubber plate (connected with a high-voltage anode), an electrode roller (grounded, and a high-voltage cathode is also grounded), a winding roller, at least one rubber flattening roller arranged at the front end of the electrode roller, at least one metal guide roller arranged at the rear end of the electrode roller and a control part. The working principle is that when the winding roller drives a film with a certain width on the sample roller to pass through the electrode roller, the equipotential conductive rubber plate with a certain width arranged at the upper end of the electrode roller is in horizontal line contact with the film, and voltage is applied to the film. The current limiting resistor, the conductive rubber plate, the moving film and the electrode roller form a high-voltage loop, the leakage current of the high-voltage loop is changed along with the moving film, when a weak point (flaw) exists at a certain position of the film, the leakage current of the high-voltage loop is suddenly changed, and the suddenly changed leakage current is collected in the high-voltage loop, namely the electrical weak point of the film is tested. CN201017020Y discloses such an electrical weakness tester for plastic films for electrical use. Its conductive rubber board is fixed in the electrode roller top, because the hand of people leads to conductive rubber board department when drawing the film when changing the sample film, very easily leads to conductive rubber board deformation uplift, and the board is along unevenness, makes partial interval of film exert no voltage, influences the measuring accuracy.
Disclosure of Invention
The invention aims to provide a film electric weakness tester capable of improving the testing precision aiming at the defects of the prior art, wherein a conductive rubber plate can rotate to be in full flexible contact with a film surface, so that no voltage is applied between partial areas of the film, and the testing precision is improved.
The technical scheme is as follows:
in order to achieve the purpose, the film electric weakness tester capable of improving the testing precision adopts the following technical scheme: the device comprises a rack, a connecting rod fixedly arranged on the rack, rotatable insulating blocks arranged on two sides of the connecting rod, an insulating plate fixedly arranged on one side of the insulating block and a conductive device fixedly arranged on the insulating plate.
Furthermore, the insulating block is of a cubic structure, a through hole in clearance fit with the connecting rod is axially formed in the insulating block, a locking surface is arranged on one radial surface of the insulating block, the radial surface of the locking surface perpendicular to the locking surface is used for fixing the insulating plate, and a quincunx hand-screwed screw for locking is arranged on the locking surface.
Furthermore, the insulation board is of a cuboid strip structure, and two sides of the insulation board are fixedly connected to the insulation block.
Further, the conductive device comprises a conductive rubber plate, an inner clamping plate and an outer clamping plate, wherein the inner clamping plate and the outer clamping plate are used for fixing the conductive rubber plate; the upper end of the conductive rubber plate is fixed between the inner clamping plate and the outer clamping plate, and the lower end of the conductive rubber plate can be in transverse flexible line contact with a film passing through the electrode roller.
Furthermore, the conducting device is fixedly connected to the insulating plate through at least 3 fixing screws.
Furthermore, a wiring terminal is fixedly arranged on one side of the inner clamping plate and used for electrically connecting the high-voltage output end.
Preferably, the insulating block is made of nylon materials, the insulating plate is made of nylon materials, and the inner clamping plate and the outer clamping plate are made of copper materials.
Compared with the prior art, the invention has the beneficial effects that:
the conductive rubber plate of the film electrical weakness tester can be rotatably fixed above the electrode roller, the conductive rubber plate is rotated to be far away from the electrode roller when a sample film is replaced, a hand of a person does not contact with the conductive rubber plate when the film is dragged, and after the sample film is replaced, the conductive rubber plate is rotated to return to the upper part of the electrode roller, so that the conductive rubber plate is prevented from being deformed and raised and the plate edge is not smooth because the hand of the person frequently contacts with the conductive rubber plate, the conductive rubber plate is rotatable, the conductive rubber plate can be rotated at any angle to be fully and flexibly contacted with the film surface, voltage can be applied to all sections of the film surface, and the testing precision is improved.
Description of the drawings:
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a right side view of the apparatus of the present invention;
FIG. 3 is a top view of the apparatus of the present invention;
FIG. 4 is a schematic view of the present invention when a sample film is replaced;
the device comprises a frame 1, a connecting rod 2, an insulating block 3, an insulating plate 4, a quincuncial hand-screwed screw 5, a conductive rubber plate 6, an inner clamping plate 7, an outer clamping plate 8, an electrode roller 9, a fixing screw 10, a connecting terminal 11 and a film 12.
The specific implementation mode is as follows:
as shown in fig. 1-4, the film electrical weak point tester capable of improving testing accuracy of the invention comprises a frame (1), a connecting rod (2) fixed on the frame (1), rotatable insulating blocks (3) arranged at two sides of the connecting rod (2), an insulating plate (4) fixed at one side of the insulating block (3) and a conductive device fixed on the insulating plate (4).
Insulating block (3) are the cube structure, and the axial is provided with and is clearance fit's through-hole with connecting rod (2), and radial one side is provided with the lock solid face, and its radial one side with lock solid face vertically is used for fixed insulation board (4), and the lock solid face is provided with plum blossom hand-screwed screw (5) that are used for the lock solid, insulating block (3) are the nylon materials.
The insulation board (4) is of a cuboid strip structure, two sides of the insulation board are fixedly connected to the insulation block (3), and the insulation board (4) is made of nylon materials.
The conductive device comprises a conductive rubber plate (6), an inner clamping plate (7) and an outer clamping plate (8) for fixing the conductive rubber plate (6); the inner splint (7) and the outer splint (8) are made of copper materials; the upper end of the conductive rubber plate (6) is fixed between the inner clamping plate (7) and the outer clamping plate (8), and the lower end of the conductive rubber plate can be in transverse flexible line contact with a film passing through the electrode roller (9).
The conducting device is fixedly connected on the insulating plate (4) through at least 3 fixing screws (10).
And one side of the inner clamping plate (7) is fixedly provided with a wiring terminal (11) for electrically connecting the high-voltage output end.
The film electric weakness tester capable of improving the testing precision works as follows:
1. when the sample film (12) is replaced, the locking plum blossom hand-screwed screws (5) on the two sides of the connecting rod (2) are loosened, the device is rotated to enable the conductive rubber plate (6) to be far away from the upper part of the electrode roller (9), and the plum blossom hand-screwed screws (5) are locked to be fixed.
2. The film (12) on the sample roller is manually pulled to the winding roller along the path, and the hands of a person do not contact the conductive rubber plate (6) when the film (12) is pulled.
3. After the sample film (12) is replaced, the quincunx hand-screwed screws (5) are loosened, the device is rotated to enable the conductive rubber plate (6) to return to the position above the electrode roller (9), the edge of the conductive rubber plate (6) is in full flexible contact with the film (12), and then the locking quincunx hand-screwed screws (5) on the two sides of the connecting rod (2) are locked.
4. The test is initiated.
Claims (4)
1. Can improve film weak point tester of measurement accuracy, characterized by:
A. the tester comprises a rack (1), a connecting rod (2) fixedly arranged on the rack (1), rotatable insulating blocks (3) arranged at two sides of the connecting rod (2), an insulating plate (4) fixedly arranged at one side of the insulating block (3) and a conducting device fixedly arranged on the insulating plate (4);
the insulating block (3) is of a cubic structure, a through hole which is in clearance fit with the connecting rod (2) is axially arranged, a locking surface is arranged on one radial surface of the insulating block, which is perpendicular to the locking surface, is used for fixing the insulating plate (4), and a quincuncial hand-screwed screw (5) for locking is arranged on the locking surface;
the insulating plate (4) is of a cuboid strip structure, and two sides of the insulating plate are fixedly connected to the insulating block (3);
the conductive device comprises a conductive rubber plate (6), an inner clamping plate (7) and an outer clamping plate (8) for fixing the conductive rubber plate (6), wherein the upper end of the conductive rubber plate (6) is fixed between the inner clamping plate (7) and the outer clamping plate (8), and the lower end of the conductive rubber plate can be in transverse flexible line contact with a film passing through the electrode roller (9);
B. the tester works as follows:
1) when the sample film (12) is replaced, the locking plum blossom hand-screwed screws (5) on the two sides of the connecting rod (2) are loosened, the insulating block (3) is rotated to enable the conductive rubber plate (6) to be far away from the upper part of the electrode roller (9), and the plum blossom hand-screwed screws (5) are locked to be fixed;
2) manually pulling the film (12) on the sample roller to a wind-up roller along the path of the film, wherein the hands of a person do not contact the conductive rubber plate (6) when pulling the film (12);
3) after the sample film (12) is replaced, loosening the quincunx hand-screwed screws (5), rotating the insulating block (3) to enable the conductive rubber plate (6) to return to the position above the electrode roller (9), enabling the front edge of the conductive rubber plate (6) to be in full flexible contact with the film (12), and then locking the locking quincunx hand-screwed screws (5) on the two sides of the connecting rod (2);
4) start the test.
2. The thin film electrical weakness tester capable of improving the test accuracy as claimed in claim 1, wherein: the conducting device is fixedly connected on the insulating plate (4) through at least 3 fixing screws (10).
3. The thin film electrical weakness tester capable of improving the test accuracy as claimed in claim 1, wherein: and one side of the inner clamping plate (7) is fixedly provided with a wiring terminal (11) for electrically connecting the high-voltage output end.
4. The thin film electrical weakness tester capable of improving the test accuracy as claimed in claim 1, wherein: the insulating block (3) is made of nylon materials, the insulating plate (4) is made of nylon materials, and the inner clamping plate (7) and the outer clamping plate (8) are made of copper materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111096.7A CN108226581B (en) | 2018-02-05 | 2018-02-05 | Film electric weakness tester capable of improving test precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111096.7A CN108226581B (en) | 2018-02-05 | 2018-02-05 | Film electric weakness tester capable of improving test precision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108226581A CN108226581A (en) | 2018-06-29 |
| CN108226581B true CN108226581B (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810111096.7A Active CN108226581B (en) | 2018-02-05 | 2018-02-05 | Film electric weakness tester capable of improving test precision |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203256262U (en) * | 2013-05-16 | 2013-10-30 | 江苏瑞祺生命科学仪器有限公司 | Double-shaft type rotating location device for micromanipulator |
| CN103712956A (en) * | 2014-01-15 | 2014-04-09 | 中国科学院化学研究所 | Microarray sample application device |
| CN203587622U (en) * | 2013-11-20 | 2014-05-07 | 安徽铜峰电子股份有限公司 | Thin-film electric weak point testing instrument capable of eliminating static electricity |
| CN107478571A (en) * | 2017-09-27 | 2017-12-15 | 鹤山市鸿新经编厂有限公司 | A kind of fabric of pressure adjustable hooks silk analytical equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030054563A1 (en) * | 2001-09-17 | 2003-03-20 | Gyros Ab | Detector arrangement for microfluidic devices |
-
2018
- 2018-02-05 CN CN201810111096.7A patent/CN108226581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203256262U (en) * | 2013-05-16 | 2013-10-30 | 江苏瑞祺生命科学仪器有限公司 | Double-shaft type rotating location device for micromanipulator |
| CN203587622U (en) * | 2013-11-20 | 2014-05-07 | 安徽铜峰电子股份有限公司 | Thin-film electric weak point testing instrument capable of eliminating static electricity |
| CN103712956A (en) * | 2014-01-15 | 2014-04-09 | 中国科学院化学研究所 | Microarray sample application device |
| CN107478571A (en) * | 2017-09-27 | 2017-12-15 | 鹤山市鸿新经编厂有限公司 | A kind of fabric of pressure adjustable hooks silk analytical equipment |
Non-Patent Citations (1)
| Title |
|---|
| 薄膜电弱点测试仪的研制;钱立文;《电子工业专用设备》;20130331;43-46 * |
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| CN108226581A (en) | 2018-06-29 |
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