CN201323102Y - Tap insulator made of ceramic medium - Google Patents
Tap insulator made of ceramic medium Download PDFInfo
- Publication number
- CN201323102Y CN201323102Y CNU2008202284737U CN200820228473U CN201323102Y CN 201323102 Y CN201323102 Y CN 201323102Y CN U2008202284737 U CNU2008202284737 U CN U2008202284737U CN 200820228473 U CN200820228473 U CN 200820228473U CN 201323102 Y CN201323102 Y CN 201323102Y
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- Prior art keywords
- hole
- copper
- insulator
- fore
- tap
- 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.)
- Expired - Fee Related
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 29
- 239000000919 ceramic Substances 0.000 title claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a tap insulator made of ceramic medium, which comprises a ceramic sleeve; a through hole is arranged on the ceramic sleeve along the central axis; a copper wiring terminal and a prop pillar extend into the through hole respectively from the openings at two ends of the through hole, and the prop pillar extends into the wiring terminal; a spring is arranged at the end of the prop pillar, which extends into the wiring terminal; a copper tightening nut, a copper gasket and a rubber gasket are sequentially arranged from the outer to the inner at the contact joint of the prop pillar and the through hole; and a copper round cap is arranged at the end of the prop pillar, which is exposed outside the through hole. The power frequency withstand voltage of the tap insulator made of ceramic medium is remarkably improved, the temperature withstand range is wide, and the medium dissipation factor is reduced. The tap insulator is long in service life, good in sealing, simple in structure and low in cost and the insulation resistance is improved.
Description
Technical field
The utility model belongs to ceramic capacitor element device technology field, relates to a kind of ceramic dielectric tap insulator.
Background technology
The tap insulator is mainly used in capacitance graded bushing and draws testing apparatus.Be convenient to Hi-pot test, the high-voltage electrical apparatus performance test of capacitance graded bushing and matching component thereof and a kind of structure member of designing.Present tap insulator is mainly the bakelite structure, and thereby the bakelite structure inevitably exists pore, crackle, node, the unequal defective of component to cause that the withstand voltage performance is lower in the process of design, partial discharge inception voltage is low, deficiencies such as aging life-span is short, thereby be badly in need of a kind of tap insulator that can satisfy the electric property requirement.
Summary of the invention
The purpose of this utility model provides a kind of ceramic dielectric tap insulator, has solved that the withstand voltage that exists in the existing insulator technology is low, terminal life is low, cost height, and the unequal defective of pore, crackle, node, component that exists.
The technical scheme that the utility model adopted is, a kind of ceramic dielectric tap insulator, comprise insulator, insulator has through hole along central axis, respectively stretch into a copper binding post and a fore-set from the both ends open of through hole, and fore-set stretches in the binding post, and the termination that fore-set stretches in the binding post also is provided with spring, and fore-set exposes the outer termination of through hole and is provided with copper round cap.
Ceramic dielectric tap insulator of the present utility model, its feature also is:
The import contact position that binding post stretches into through hole is disposed with copper locknut, copper washer and rubber washer from outside to inside, and the import contact position that fore-set stretches into through hole is disposed with copper hold-down nut and rubber washer from outside to inside.
Ceramic dielectric tap insulator of the present utility model, power-frequency withstand voltage significantly improves, and the temperature tolerance range is wide, and dielectric dissipation factor reduces, high life, insulation resistance improves, good airproof performance; Simultaneously simple in structure, cost of manufacture is low.
Description of drawings
Fig. 1 is the structural representation of the utility model insulator embodiment, and the A face is a burnishing surface among the figure.
Among the figure, 1. binding post, 2. insulator, 3. fore-set, 4. hold-down nut, 5. rubber washer, 6. spring, 7. rubber washer, 8. copper washer, 9. locknut is 10. justified cap, 11. through holes.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 1 is the structural representation of the utility model insulator embodiment, comprise insulator 2, insulator 2 materials are the aluminium oxide porcelain, insulator 2 has through hole 11 along central axis, respectively stretch into a copper binding post 1 and a fore-set 3 from the both ends open of through hole 11, and fore-set 3 stretches in the binding post 1, the termination that fore-set 3 stretches in the binding post 1 also is provided with spring 6, the import contact position that binding post 1 stretches into through hole 11 is disposed with copper locknut 9 from outside to inside, copper washer 8 and rubber washer 7, the import contact position that fore-set 3 stretches into through hole 11 is disposed with copper hold-down nut 4 and rubber washer 5 from outside to inside, and fore-set 3 exposes through hole 11 outer terminations and is provided with copper round cap 10.A position face is a burnishing surface among the figure, can not have pore, node, crackle.
Embodiment carries out the measurement of performances such as power frequency withstand, dielectric loss, insulation resistance to the utility model insulator, and test temperature is not less than 10 ℃, and the result is as follows:
1), resistance test: the two poles of the earth with the 2500V megohmmeter are measured, and a utmost point connects the test joint at insulator center, and a utmost point connects the external diameter of insulating material; During the test of insulation against ground measuring samples, with the insulation resistance between megohmmeter measuring earth terminal and the pigtail splice; Insulation resistance: greater than 5 * 103M Ω; Greater than 103M Ω, applying voltage is greater than 2KV over the ground;
2), dielectric dissipation factor: test with Schering bridge, test chamber and pigtail splice insert the loop, and voltage is 1KV, and dielectric dissipation factor is less than 3%;
3), power-frequency withstand voltage: test chamber ground connection, pigtail splice connects high-voltage connection, the result confirms power frequency at 2KV, 60s does not have flashover, do not have to puncture;
4), temperature tolerance: the tap insulator is heated to 125 ℃ in baking oven, continue 140h.Take out the back temperature and do leakage test by 2.5 regulations when reducing to room temperature, reduce to-40 ℃ after the pass the test again and carry out freezingly, keep 24h, take out and do sealing experiment when sample rises to room temperature again, the result confirms to tolerate the temperature of low temperature-40 ℃ and 125 DEG C high temperature;
5), leakage test: pressurize with air compressor, test chamber is inverted in the water, make pressure evenly be increased to gauge pressure 0.35 ± 0.01MPa, continue 60s, do not have gas leakage, confirm good seal.
In sum, above-mentioned each performance of the utility model insulator significantly improves, and power-frequency withstand voltage significantly improves, and the temperature tolerance range is wide, and dielectric dissipation factor reduces, high life, and insulation resistance improves, good airproof performance; Simple in structure, cost of manufacture is low.
Claims (2)
1, a kind of ceramic dielectric tap insulator, comprise insulator (2), it is characterized in that: insulator (2) has through hole (11) along central axis, respectively stretch into a copper binding post (1) and a fore-set (3) from the both ends open of through hole (11), and fore-set (3) stretches in the binding post (1), the termination that fore-set (3) stretches in the binding post (1) also is provided with spring (6), and fore-set (3) exposes the outer termination of through hole (11) and is provided with copper round cap (10).
2, ceramic dielectric tap insulator according to claim 1, it is characterized in that: the import contact position that described binding post (1) stretches into through hole (11) is disposed with copper locknut (9), copper washer (8) and rubber washer (7) from outside to inside, and the import contact position that fore-set (3) stretches into through hole (11) is disposed with copper hold-down nut (4) and rubber washer (5) from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202284737U CN201323102Y (en) | 2008-12-25 | 2008-12-25 | Tap insulator made of ceramic medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202284737U CN201323102Y (en) | 2008-12-25 | 2008-12-25 | Tap insulator made of ceramic medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323102Y true CN201323102Y (en) | 2009-10-07 |
Family
ID=41160478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202284737U Expired - Fee Related CN201323102Y (en) | 2008-12-25 | 2008-12-25 | Tap insulator made of ceramic medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201323102Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592827A (en) * | 2012-03-30 | 2012-07-18 | 南昌拓辰电子有限公司 | Radiating type DC-filtering and DC-support metallic film capacitor |
-
2008
- 2008-12-25 CN CNU2008202284737U patent/CN201323102Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592827A (en) * | 2012-03-30 | 2012-07-18 | 南昌拓辰电子有限公司 | Radiating type DC-filtering and DC-support metallic film capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |