CN113791316A - High voltage breakdown measuring device - Google Patents
High voltage breakdown measuring device Download PDFInfo
- Publication number
- CN113791316A CN113791316A CN202110896759.2A CN202110896759A CN113791316A CN 113791316 A CN113791316 A CN 113791316A CN 202110896759 A CN202110896759 A CN 202110896759A CN 113791316 A CN113791316 A CN 113791316A
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- high voltage
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- 230000015556 catabolic process Effects 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 131
- 229910052751 metal Inorganic materials 0.000 claims abstract description 131
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims description 25
- 239000000565 sealant Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012811 non-conductive material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to a high-voltage breakdown measuring device, which belongs to the field of material performance detection and comprises at least two insulating plates, insulating columns, metal columns and metal sheets, wherein the two insulating plates comprise a first insulating plate and a second insulating plate; the insulating column penetrates through the two insulating plates; the metal column penetrates through the first insulating plate, the bottom end of the metal column is abutted against the second insulating plate, and the top end of the metal column exceeds the first insulating plate; the sheetmetal sets up on the second insulation board for connect the ground wire, the sample setting is on the sheetmetal, and the bottom and the sample butt of metal column. The invention has the effect of solving the problems of complex structure, complex operation and high cost of the sample measuring device.
Description
Technical Field
The invention relates to the technical field of material performance detection, in particular to a high-voltage breakdown measuring device.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
In the field of vacuum electronics, various materials such as glass, ceramics, etc. are used. In some vacuum electronic devices and electronic equipment, high voltage of tens kilovolts or even hundreds kilovolts is sometimes needed, for example, electron acceleration is realized, and it is known that the breakdown voltage of the used material under different thicknesses and different environments is very important, so that high voltage breakdown measurement needs to be carried out on the material in the working environment.
The existing common detection method is to carry out the breakdown experiment on the sample by a special measuring device, but the devices have complex structures, complex operation and higher cost, can be found in specific places and are very inconvenient to use.
Disclosure of Invention
The invention aims to at least solve the problems of complicated structure, complicated operation and high cost of a sample measuring device. The purpose is realized by the following technical scheme:
the invention provides a high voltage breakdown measuring device, which comprises
The insulation plates are at least two, and the two insulation plates comprise a first insulation plate and a second insulation plate which are arranged at intervals;
the insulating columns penetrate through the two insulating plates;
the metal column penetrates through the first insulating plate, the bottom end of the metal column is abutted to the second insulating plate, and the top end of the metal column is arranged beyond the first insulating plate;
the metal sheet is arranged on the second insulating plate and used for being connected with a ground wire, the sample is arranged on the metal sheet, and the bottom end of the metal column is abutted against the sample.
According to the high-voltage breakdown measuring device, the insulating column sequentially penetrates through the first insulating plate and the second insulating plate to form a support, the second insulating plate is provided with the metal sheet, the sample is placed on the metal sheet, and the bottom end of the metal column is abutted to the sample after penetrating through the first insulating plate; the metal column is connected with a high voltage source, the metal sheet is connected with a ground wire, and a high voltage breakdown measurement experiment can be carried out on the sample after the metal column is electrified, so that the problems of complex structure, complex operation and high cost of the conventional common sample measuring device are solved.
In addition, the high voltage breakdown measurement device according to the present invention may further have the following additional technical features:
in some embodiments of the present invention, the top end of the metal pillar is provided with a groove or a through hole.
In some embodiments of the present invention, the number of the metal pillars is at least two, and the metal pillars include a first metal pillar and a second metal pillar, a bottom end of the first metal pillar abuts against the upper surface of the sample, and a bottom end of the second metal pillar abuts against the upper surface of the metal sheet.
In some embodiments of the present invention, the first metal column is provided with a first sleeve, and a bottom end of the first sleeve abuts against an upper surface of the sample; the second metal column is sleeved with a second sleeve, and the bottom end of the second sleeve is abutted to the upper surface of the metal sheet.
In some embodiments of the invention, the top end of the first sleeve is provided with a first head cover, and the top end of the second sleeve is provided with a second head cover.
In some embodiments of the invention, the joint between the sample and the first casing is provided with a high pressure resistant sealant.
In some embodiments of the invention, the bottom end of the second sleeve is bolted to the metal sheet.
In some embodiments of the present invention, an insulating spacer is disposed between the metal sheet and the second insulating plate, and an edge of the insulating spacer is spaced apart from the bolt.
In some embodiments of the present invention, the number of the insulating columns is at least three, the insulating columns are arranged in parallel with each other, and the insulating columns are arranged at intervals in a circumferential direction of the insulating plate.
In some embodiments of the present invention, the high voltage breakdown measurement apparatus is further provided with a third insulating plate disposed at an interval between the first insulating plate and the second insulating plate, and the insulating post and the metal post are both disposed through the third insulating plate.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a first embodiment of a high voltage breakdown measurement apparatus;
FIG. 2 is a top view of the high voltage breakdown measurement apparatus shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a second embodiment of a high voltage breakdown measurement apparatus;
fig. 4 is a top view of the high voltage breakdown measurement device shown in fig. 3.
Reference numerals:
1. an insulating plate; 100. a first insulating plate; 101. a second insulating plate; 102. a third insulating plate; 2. an insulating column; 3. a metal post; 300. a first metal pillar; 301. a second metal pillar; 4. a metal sheet; 5. a sample; 6. perforating; 7. a groove; 8. a first sleeve; 9. a second sleeve; 10. a first head cover; 11. a second head cover; 12. high pressure resistant sealant; 13. a bolt; 14. and an insulating gasket.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 2, according to an embodiment of the present invention, there is provided a high voltage breakdown measurement apparatus including
The insulation board 1, the insulation board 1 is at least two, the two insulation boards 1 comprise a first insulation board 100 and a second insulation board 101;
the insulating column 2 is arranged by penetrating the two insulating plates 1;
the metal column 3 penetrates through the first insulating plate 100, the bottom end of the metal column 3 is abutted to the second insulating plate 101, and the top end of the metal column 3 exceeds the first insulating plate 100;
the metal sheet 4, the metal sheet 4 sets up on second insulating board 101 for connect the ground wire, and sample 5 sets up on metal sheet 4, and the bottom and the sample 5 butt of metal column 3.
Further, the number of the insulating columns 2 is at least three, the insulating columns 2 are arranged in parallel with each other, and the insulating columns 2 are arranged at intervals in the circumferential direction of the insulating plate 1.
Specifically, as shown in fig. 1 to 2, in this embodiment, the insulating columns 2 are cylindrical and four, the insulating plates 1 are plate-shaped and at least two, the two insulating plates 1 are parallel to each other, the four insulating columns 2 are parallel to each other and arranged along the circumferential direction of the insulating plates 1 at intervals, the four insulating columns 2 sequentially penetrate through the first insulating plate 100 and the second insulating plate 101 to form a support, and the bottom ends of the four insulating columns 2 are flush, so as to ensure the stability of the support. The insulating column 2 and the insulating plate 1 are made of non-conductive materials such as plastic, organic glass, ceramic or rubber. Meanwhile, a metal sheet 4 is laid on the upper surface of the second insulating plate 101 between the first insulating plate 100 and the second insulating plate 101, a sample 5 to be tested is placed on the upper surface of the metal sheet 4, and the metal sheet 4 can be connected with a ground wire through a mounting wire. The first insulating plate 100 is provided with a through hole, the metal column 3 is vertically inserted into the through hole, the bottom end face of the metal column 3 is abutted to the sample 5 to be measured, and the top end of the metal column 3 is connected with a high-voltage power supply.
In practical application, the insulating column 2 sequentially penetrates through the first insulating plate 100 and the second insulating plate 101 to form a support, the metal sheet 4 is arranged on the second insulating plate 101, the sample 5 is placed on the metal sheet 4, and the bottom end of the metal column 3 is abutted to the sample 5 after penetrating through the first insulating plate 100; connect metal column 3 and high voltage source, be connected sheetmetal 4 and ground wire, the circular telegram can carry out high voltage breakdown to the sample 5 that awaits measuring and measure the experiment, and the device simple structure moreover, the volume is light little, easy operation, can also reduce the experiment cost.
In some embodiments of the present invention, in conjunction with fig. 1 and 3, the top end of the metal post 3 is provided with a groove 7 or a through hole 6. Specifically, as shown in fig. 3, a groove 7 is concavely and annularly provided at the top end of the metal column 3 along the outer circumferential surface of the metal column 3, and as shown in fig. 1, a through hole 6 may be provided on the side wall of the top end of the metal column 3 along the radial direction of the metal column 3. In practical application, the high voltage source line can be annularly arranged on the metal column 3 through the groove 7 and is connected with the metal column 3; the high voltage source line may also be fixed to the metal pillar 3 through the through hole 6 and connected to the metal pillar 3. The arrangement of the groove 7 or the through hole 6 can enable the high-voltage source wire to be better connected with the metal column 3, and the situation that in the experiment process, the high-voltage source wire falls off accidentally to cause inaccurate experiment results and accidental injury of personnel can be avoided.
In some embodiments of the present invention, as shown in fig. 1 to 4, the number of the metal posts 3 is at least two, and the metal posts include a first metal post 300 and a second metal post 301, a bottom end of the first metal post 300 abuts against the upper surface of the sample 5, and a bottom end of the second metal post 301 abuts against the upper surface of the metal sheet 4. Specifically, the metal pillar 3 is generally provided as a copper pillar because the copper pillar is better in conductivity. The bottom end of the first metal column 300 is abutted against the upper surface of the sample 5 to be detected, and the top end of the first metal column 300 is connected with a high voltage source line; the bottom end of the second metal pillar 301 abuts against the upper surface of the metal sheet 4, so that the second metal pillar 301 and the metal sheet 4 form a grounding device, and at this time, the top end of the second metal pillar 301 is connected with the ground wire to form a current path. The ground wire and the second metal column 301 are connected, so that more selective installation modes are provided for the ground wire, the operation is convenient and fast in practical application, the working efficiency of mounting and dismounting is improved, and the real-time connection condition of the ground wire is better observed.
In some embodiments of the present invention, as shown in fig. 1 to 4, the first metal column 300 is sleeved with the first sleeve 8, and the bottom end of the first sleeve 8 abuts against the upper surface of the sample 5; the second metal column 301 is sleeved with a second sleeve 9, and the bottom end of the second sleeve 9 is abutted to the upper surface of the metal sheet 4. Specifically, the first sleeve 8 and the second sleeve 9 are made of high-voltage resistant materials, and non-conductive materials such as ceramics, rubber or insulating plastics can be used. The first sleeve 8 and the second sleeve 9 are both arranged in a hollow column shape, the first sleeve 8 is sleeved on the first metal column 300, the second sleeve 9 is sleeved on the second metal column 301, the sleeve partially or completely sleeves the metal column 3 in the sleeve, and the sleeve and the metal column 3 are in clearance fit or transition fit. In practical application, the sleeve is sleeved outside the metal column 3 when higher breakdown voltage is measured, so that the metal column 3 can be prevented from discharging to breakdown air, and personal injury to nearby workers can be avoided.
In some embodiments of the present invention, referring to fig. 3 and 4, the top end of the first casing 8 is provided with a first head cap 10, and the top end of the second casing 9 is provided with a second head cap 11. Specifically, the head cover is also made of a high-voltage resistant material, and a non-conductive material such as ceramic, rubber, or insulating plastic can be used. The head cover and the sleeve are integrally formed, and the top end of the metal column 3 is positioned in the head cover; the opening has all been seted up to the top and the lateral wall on skull, and the recess 7 on metal column 3 top or punch 6 just to the opening setting of skull lateral wall. During practical application, the metal column 3 is inserted into the sleeve from the opening at the top end of the head cover, after the metal column 3 is installed, a high-voltage power supply line or a ground wire penetrates through the opening of the side wall of the head cover to be connected with the groove 7 or the through hole 6 on the metal column 3 to form a current path, and a high-voltage breakdown measurement experiment can be carried out on the sample 5 to be measured after the current path is electrified. The arrangement of the first head cover 10 and the second head cover 11 can prevent the mistaken touch of personnel on the first hand, and the function of protecting the personal safety of the personnel is achieved; and in the second aspect, the part of the top end of the metal column 3, which is exposed out of the sleeve, is prevented from discharging, and the function of protecting the personal safety of workers is also achieved.
In some embodiments of the present invention, with reference to fig. 1 and 3, the junction of the sample 5 and the first sleeve 8 is provided with a high pressure resistant sealant 12. Specifically, the bottom end face of the first sleeve 8 is abutted against the upper surface of the sample 5 to be measured, and the high-pressure-resistant sealant 12 is uniformly coated at the joint of the first sleeve 8 and the sample 5 to be measured, so that the gap at the joint is sealed, and the leakage-free effect is achieved. During practical application, when measuring the higher voltage of puncturing, after the metal column 3 is electrified, the current can leak from the bottom end of the first sleeve pipe 8 and the gap between the samples 5 to be tested, and the high-voltage-resistant sealant 12 seals the gap, so that the discharge of the metal column 3 is prevented, the experimental safety is further improved, and the personal safety of workers is ensured.
In some embodiments of the invention, as shown in fig. 3, the bottom end of the second sleeve 9 is connected to the metal sheet 4 by means of a bolt 13.
Further, an insulating gasket 14 is disposed between metal sheet 4 and second insulating plate 101, and an edge of insulating gasket 14 is spaced from bolt 13. Specifically, the side wall close to the end face of the bottom end of the second sleeve 9 is provided with an ear plate, and the bolt 13 sequentially penetrates through the ear plate and the metal sheet 4 to fixedly connect the second sleeve 9 and the metal sheet 4. However, when performing the measurement experiment, it is necessary to ensure that the metal sheet 4 is kept in a horizontal state to ensure the accuracy of the measurement result of the experiment. Therefore, the insulating gasket 14 is arranged between the metal sheet 4 and the second insulating plate 101 to cushion the metal sheet 4, so that the situation that the side, connected with the metal sheet 4, of the second sleeve 9 is higher and lower due to the connection of the bolt 13 is avoided, and the position, at which the bolt 13 is exposed out of the bottom surface of the metal sheet 4, of the insulating gasket 14 is close to the side of the bolt 13. The arrangement of the bolt 13 connecting the second sleeve 9 and the metal sheet 4 ensures that the metal sheet 4 and the second sleeve 9 are integrated, and ensures that the second metal column 301 is connected with the metal sheet 4, so that the current path is normal. The insulating gasket 14 is arranged to facilitate measurement, ensure that the metal sheet 4 is in a horizontal state and avoid inaccurate measurement results.
In some embodiments of the present invention, as shown in fig. 1, the high voltage breakdown measuring device is further provided with a third insulating plate 102, the third insulating plate 102 is disposed between the first insulating plate 100 and the second insulating plate 101, and the insulating posts 2 and the metal posts 3 are both disposed through the third insulating plate 102. Specifically, the third insulating plate 102 is plate-shaped and disposed parallel to the first insulating plate 100 between the first insulating plate 100 and the second insulating plate 101, and the insulating posts 2 vertically penetrate the third insulating plate 102, fixing the third insulating plate 102, while the sleeve and the metal posts 3 are also disposed through the third insulating plate 102. The third insulating plate 102 is arranged to stabilize the support structure, and further fix the sleeve and the metal column 3, so that accidents in the experiment process are avoided, and the experiment result is inaccurate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A high voltage breakdown measurement device, characterized by: comprises that
The insulation plates are at least two, and the two insulation plates comprise a first insulation plate and a second insulation plate which are arranged at intervals;
the insulating columns penetrate through the two insulating plates;
the metal column penetrates through the first insulating plate, the bottom end of the metal column is abutted to the second insulating plate, and the top end of the metal column is arranged beyond the first insulating plate;
the metal sheet is arranged on the second insulating plate and used for being connected with a ground wire, the sample is arranged on the metal sheet, and the bottom end of the metal column is abutted against the sample.
2. The high voltage breakdown measurement device of claim 1, wherein: the top end of the metal column is provided with a groove or a through hole.
3. The high voltage breakdown measurement device of claim 2, wherein: the quantity of metal post is two at least, including first metal post and second metal post, the bottom of first metal post with the upper surface butt of sample, the bottom of second metal post with the upper surface butt of sheetmetal.
4. A high voltage breakdown measurement device according to claim 3, wherein: the first metal column is sleeved with a first sleeve, and the bottom end of the first sleeve is abutted to the upper surface of the sample; the second metal column is sleeved with a second sleeve, and the bottom end of the second sleeve is abutted to the upper surface of the metal sheet.
5. The high voltage breakdown measurement device of claim 4, wherein: the top end of the first sleeve is provided with a first head cover, and the top end of the second sleeve is provided with a second head cover.
6. The high voltage breakdown measurement device of claim 4, wherein: and a high-pressure-resistant sealant is arranged at the joint of the sample and the first sleeve.
7. The high voltage breakdown measurement device of claim 4, wherein: the bottom end of the second sleeve is connected with the metal sheet through a bolt.
8. The high voltage breakdown measurement device of claim 7, wherein: an insulating gasket is arranged between the metal sheet and the second insulating plate, and the edge of the insulating gasket and the bolt are arranged at intervals.
9. The high voltage breakdown measurement device of claim 1, wherein: the number of the insulation columns is at least three, the insulation columns are arranged in parallel, and the insulation columns are arranged at intervals along the circumferential direction of the insulation plate.
10. A high voltage breakdown measurement device according to any one of claims 1 to 9, wherein: the high-voltage breakdown measurement device is further provided with a third insulating plate, the third insulating plate is arranged between the first insulating plate and the second insulating plate at intervals, and the insulating column and the metal column penetrate through the third insulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896759.2A CN113791316A (en) | 2021-08-05 | 2021-08-05 | High voltage breakdown measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896759.2A CN113791316A (en) | 2021-08-05 | 2021-08-05 | High voltage breakdown measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN113791316A true CN113791316A (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110896759.2A Pending CN113791316A (en) | 2021-08-05 | 2021-08-05 | High voltage breakdown measuring device |
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| CN (1) | CN113791316A (en) |
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