CN110033944A - Polypropylene film capacitor high-performance end cap - Google Patents
Polypropylene film capacitor high-performance end cap Download PDFInfo
- Publication number
- CN110033944A CN110033944A CN201910364652.6A CN201910364652A CN110033944A CN 110033944 A CN110033944 A CN 110033944A CN 201910364652 A CN201910364652 A CN 201910364652A CN 110033944 A CN110033944 A CN 110033944A
- Authority
- CN
- China
- Prior art keywords
- end cap
- gasket
- exit
- polypropylene film
- nut
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 55
- -1 Polypropylene Polymers 0.000 title claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 34
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000005028 tinplate Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000012212 insulator Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a kind of polypropylene film capacitor high-performance end caps, the end cap is using installation nut, installation spring washer and installation gasket are sequentially screwed into end nut on bolt exit, sealing ring is mounted on the inner circle card slot of insulator bottom on bolt exit, the bolt exit is connected with tinplate sheet, gasket is mounted on the hexagon insulated column of the bolt exit of tinplate sheet, insulating paper sleeve-board is located at below gasket on bolt exit, with this by bolt exit, sealing ring, tinplate sheet, gasket, insulating board and hexagonal (hexagon)nut are fixed together, then explosion-proof copper wire upper end curved straight fillet welding is connected to the center of end nut under bolt exit, and cutting is compressed after explosion-proof copper wire lower end to be penetrated to the corresponding aperture of explosion-proof block.The present invention is conducive to be promoted the Long Service Life and reliability of polypropylene film capacitor, and has the characteristics that high pressure resistant, corrosion-resistant, leakproofness is excellent, performance is stable.
Description
Technical field
The present invention relates to a kind of polypropylene film capacitor high-performance end caps, are able to satisfy the high pressure fields such as substation to poly-
The demand of Polypropylene film capacitor belongs to capacitor element technical field.
Background technique
End cap is one of the important substrate that polypropylene film capacitor is manufactured, and structure and performance are to the full extent
Influence the performance of capacitor.Therefore, the structure and performance for promoting end cap are to solve the problems, such as one of this main path.Traditional
Polypropylene film capacitor draws end cap of the end cap as capacitor using iron weld tabs, which is market ripe, therefore its
Buying is convenient, yield is sufficient, but the end cap draws there are weld tabs and easily gets rusty in high humidity environment, i.e., corrosion resistance is poor；Weld tabs draws
Phenomena such as outlet is subjected to displacement vulnerable to external force, twists, bending, being broken, fall off；And there is oil leakage phenomenon hair when at weld tabs exit
Raw, this brings great hidden danger to the reliability of polypropylene film capacitor Long Service Life.In addition, polypropylene is thin at present
The iron weld tabs of membrane capacitance industry universal draws end cap, is limited by the structure, and pressure resistance only can ensure that between two exits
4000VAC is temporarily unable to satisfy demand of the high pressure fields such as substation to polypropylene film capacitor.It is subject to the above restrictions, tradition
It is new that iron weld tabs used by polypropylene film capacitor draws more difficult substation, the detection device etc. of harsh environment of meeting of end cap
Demand of the emerging field to polypropylene film capacitor performance.Therefore, the technology sexual revolution gesture of polypropylene film capacitor end cap exists
It must go.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, provides a kind of polypropylene film capacitor high-performance end
Lid is conducive to be promoted the Long Service Life and long term reliability of polypropylene film capacitor using this kind of end cap, and
Have the characteristics that high pressure resistant, corrosion-resistant, leakproofness is excellent, performance is stable.
According to technical solution provided by the invention, polypropylene film capacitor high-performance end cap, feature is: adopting
It is sequentially screwed into end nut on bolt exit with installation nut, installation spring washer and installation gasket, sealing ring is mounted on bolt
The inner circle card slot of insulative base on exit, the bolt exit penetrate the correspondence hexagonal hole in tinplate sheet and compress with
Tinplate sheet is connected, and gasket is mounted on the hexagon insulated column of the bolt exit of tinplate sheet, insulating paper sleeve-board
It is located at below gasket on the hexagon insulated column on bolt exit, then screws on hexagonal on end nut under bolt exit
Bolt exit, sealing ring, tinplate sheet, gasket, insulating board and hexagonal (hexagon)nut are fixed together by nut with this,
Then explosion-proof copper wire upper end curved straight fillet welding is connected to the center of end nut under bolt exit, and explosion-proof copper wire lower end is worn
Enter the corresponding aperture of explosion-proof block, and compress cutting, the explosion-proof copper wire after cutting is the connection medium of end cap and capacitor element, is gathered
Lead one end of Polypropylene film capacitor is welded on the explosion-proof copper wire cut below explosion-proof block, and the other end is welded on capacitor
Element end face realizes that end cap is connected with capacitor element with this.
As a further improvement of the present invention, the end cap is equipped with oil filler point, and filling oil passes through the oil filler point on end cap
Inject capacitor internal.
As a further improvement of the present invention, the metal part material of the bolt exit is fine copper, and electric conductivity is more
Add excellent.
As a further improvement of the present invention, the installation gasket material is stainless steel material.
As a further improvement of the present invention, the sealing ring and gasket material are respectively silica gel material.
Compared with the prior art the present invention has the advantage that
1, the exit metal part material design of the end cap is fine copper, and electric conductivity is more excellent.
2, the exit of the end cap is designed as bolt arrangement, draws instead of the weld tabs of existing conventional polypropylene films capacitor
Outlet design, and it is configured with installation nut, installation spring washer and installation gasket, it is fixedly mounted by tightening nuts, compared with weldering
It is fixedly mounted when piece exit is installed by inserted sheet internal bayonet, mating installation nut installs spring washer and installs gasket
So that bolt exit can be stronger when connecting with complete machine, exit will not generate exit torsion because being influenced by external force for design
Dynamic, bending bad phenomenons, the qualification rate and reliability of capacitor product such as is broken or falls off and is all significantly enhanced.
3, the matched installation gasket material design of the end cap is stainless steel, and the common iron gasket of non-commercially, stainless steel
Material design can thoroughly prevent the gasket of the iron material matter on end cap in actual use and the bolt of copper material in moist ring
Border issues pig iron copper galvanic interaction and leads to the phenomenon that getting rusty, and exit will lead to capacitor contact resistance after getting rusty increases
Greatly, it is easier to generate heat when use, the increase of temperature will seriously affect the Long Service Life of polypropylene film capacitor, and be easier to out
The burst bad phenomenon such as existing capacitor thermal breakdown.Verified through salt spray test, using conventional iron gasket end cap salt spray test for 24 hours after
There is phenomenon of getting rusty, and use the end cap of stainless steel gasket still intact after salt spray test 96h, is i.e. the corrosion resistance of end cap
It is significantly enhanced.In conclusion being conducive to be promoted the Long Service Life of polypropylene film capacitor using this kind of end cap
And long term reliability.
4, after the exit of the end cap is designed as bolt arrangement, the pressure resistance between two exits of end cap be can reach
Safely 10000VAC improves 150%, i.e., compared with the pressure-resistant 4000VAC between two exits of conventional weld tabs leading-out terminal structure
Performance is substantially improved.
5, the bolt exit design of the end cap has upper and lower dual-seal, and upper seal is located at insulator on bolt exit
The inner circle card slot of bottom, lower seal pad cover on the bolt exit hexagon insulated column for passing through tinplate sheet, dual close up and down
The bolt exit of lid is blocked, and two sealing mediums are both designed as silica gel material, and unconventional rubber material, elasticity
And toughness is more excellent, so that a possibility that having prevented oil leak at end cap exit, realizes the high leakproofness of end cap.
Detailed description of the invention
Fig. 1 is structure of the invention decomposition diagram.
Fig. 2 is main view of the present invention.
Fig. 3 is left view of the present invention.
Fig. 4 is top view of the present invention.
Description of symbols: 1- installs nut, 2- installation spring washer, 3- installation gasket, 4- bolt exit, 5- sealing
Circle, 6- tinplate sheet, 7- gasket, 8- insulating board, 9- hexagonal (hexagon)nut, the explosion-proof copper wire of 10-, 11- explosion-proof block, 12- oil filler point.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
As shown in Figure 1, a kind of end cap for polypropylene film capacitor, including installation nut 1, installation spring washer 2, installation
Gasket 3, sealing ring 5, tinplate sheet 6, gasket 7, insulating board 8, hexagonal (hexagon)nut 9, explosion-proof copper wire 10, is prevented bolt exit 4
Quick-fried piece 11 and the equal parts of oil filler point 12.
Wherein, nut 1, installation spring washer 2 and installation gasket 3 are installed and are sequentially screwed into end nut on bolt exit 4, it is close
Seal 5 is mounted on the inner circle card slot of insulative base on bolt exit 4, is equipped with installation nut 1, installation spring washer 2, installation
The bolt exit 4 of gasket 3 and sealing ring 5 passes through the correspondence hexagonal holes that penetrate in tinplate sheet 6 and compresses and tinplate
Piece 6 is connected, and gasket 7 is mounted on the hexagon insulated column of the bolt exit 4 of tinplate sheet 6, and insulating board 8 passes through
The hexagonal hole of itself is covered to be located at below gasket 7 on the hexagon insulated column on bolt exit 4, then in bolt exit
Hexagonal (hexagon)nut 9 is screwed on 4 lower end nuts, with this by bolt exit 4, sealing ring 5, tinplate sheet 6, gasket 7, insulating paper
Plate 8 and hexagonal (hexagon)nut 9 are fixed together.Then explosion-proof 10 upper end curved straight fillet welding of copper wire is connected to end nut under bolt exit 4
Center, and explosion-proof 10 lower end of copper wire is penetrated into the corresponding aperture of explosion-proof block 11, and compressing cutting is end cap of the present invention.This
Outside, design has oil filler point 12 on end cap of the present invention, and filling oil injects capacitor internal by the oil filler point 12 on end cap.
The metal part material design of end cap of the invention, bolt exit 4 is fine copper, and electric conductivity is more excellent.
In addition, the exit of end cap of the present invention is designed as bolt arrangement, instead of existing conventional polypropylene films capacitor
Weld tabs exit design, and mating installation nut 1, installation spring washer 2 and install gasket 3, peace is fixed by tightening nuts 1
Dress is fixedly mounted when compared with the installation of weld tabs exit by inserted sheet internal bayonet, mating installation nut 1, installation 2 and of spring washer
The design of gasket 3 is installed so that bolt exit 4 can be stronger when connecting with complete machine, exit will not be due to being influenced by external force
Generate exit twisting, bending, bad phenomenons, the qualification rate and reliability of capacitor product such as stop or fall off all obtain
It is substantially improved.
Meanwhile matched 3 material design of installation gasket of end cap of the present invention is stainless steel, and the common iron gasket of non-commercially,
The design of its stainless steel material, can thoroughly prevent the gasket of the iron material matter on end cap in actual use and the bolt of copper material
Cause to get rusty there is a phenomenon where iron copper galvanic interaction in wet condition, exit will lead to the contact of capacitor after getting rusty
Resistance increases, and when use is easier to generate heat, and the increase of temperature will seriously affect the Long Service Life of polypropylene film capacitor, and
It is easier to the burst bad phenomenon such as capacitor thermal breakdown occur.It verifies through salt spray test, is tried using the end cap of conventional iron gasket in salt fog
It tests and occurs phenomenon of getting rusty afterwards for 24 hours, and use the end cap of stainless steel gasket still intact after salt spray test 96h, is i.e. end cap
Corrosion resistance is significantly enhanced.In conclusion being conducive to promote the long-term of polypropylene film capacitor using this kind of end cap
Service life and long term reliability.
And after the exit of end cap of the present invention is designed as bolt arrangement, the pressure resistance between two bolt exits 4 of end cap is reachable
150% is improved, that is, is pacified compared with the pressure-resistant 4000VAC between two exits of conventional weld tabs leading-out terminal structure to 10000VAC
Full performance is substantially improved.
In addition, the design of bolt exit 4 of end cap of the present invention has upper and lower dual-seal, upper seal 5 is located at bolt extraction
The inner circle card slot of insulative base on end 4,7 sets of gasket on the hexagon insulated column of bolt exit 4 for passing through tinplate sheet,
The bolt exit 4 of upper and lower dual-seal end cap, and two sealing mediums are both designed as silica gel material, and unconventional rubber
Material, elasticity and toughness are more excellent, so that a possibility that having prevented oil leak at end cap exit, realizes the highly dense of end cap
Feng Xing.
The course of work and working principle of the invention
The present invention relates to a kind of polypropylene film capacitor end cap, specifically a kind of high voltage, the long-life, it is corrosion-resistant,
The high-performance end cap of high reliability and high leakproofness, it is using the upper end nut of bolt exit 4 as the extraction of entire capacitor
End, to install nut 1, installation spring washer 2 and install gasket 3 as the fastener of installation, by 4 lower end of bolt exit
The center of nut welds explosion-proof copper wire and compresses cutting after penetrating explosion-proof block 11, and the explosion-proof copper wire 10 after cutting is end cap
With the connection medium of capacitor element, lead one end of polypropylene film capacitor be welded on cut below explosion-proof block it is anti-
Quick-fried copper wire 10, the other end are welded on capacitor element end face, realize that end cap is connected with capacitor element with this.
Claims (6)
1. a kind of polypropylene film capacitor high-performance end cap, it is characterized in that: installation nut (1), installation spring washer (2) and
Installation gasket (3) is sequentially screwed into end nut on bolt exit (4), and sealing ring (5) is mounted on bolt exit (4) bottom of insulating
The inner circle card slot in portion, the bolt exit (4) penetrate the correspondence hexagonal hole on tinplate sheet (6) and compress and tinplate sheet
(6) it is connected, gasket (7) is mounted on the hexagon insulated column of the bolt exit (4) of tinplate sheet (6), insulating paper
Plate (8) is covered to be located at below gasket (7) on the hexagon insulated column on bolt exit (4), then under bolt exit (4)
Hexagonal (hexagon)nut (9) are screwed on end nut, with this by bolt exit (4), sealing ring (5), tinplate sheet (6), gasket
(7), insulating board (8) and hexagonal (hexagon)nut (9) are fixed together, and explosion-proof copper wire (10) upper end curved straight fillet welding is then connected to bolt
The center of end nut under exit (4), and explosion-proof copper wire (10) lower end is penetrated into the corresponding aperture of explosion-proof block (11), and compress
It cuts.
2. polypropylene film capacitor as described in claim 1 high-performance end cap, it is characterized in that: explosion-proof after the cutting
Copper wire (10) is the connection medium of end cap and capacitor element, and lead one end of polypropylene film capacitor is welded on explosion-proof
The explosion-proof copper wire (10) cut below block, the other end are welded on capacitor element end face, realize end cap and capacitor member with this
Part is connected.
3. polypropylene film capacitor as described in claim 1 high-performance end cap, it is characterized in that: the end cap is equipped with note
Oilhole (12), filling oil inject capacitor internal by the oil filler point (12) on end cap.
4. polypropylene film capacitor as described in claim 1 high-performance end cap, it is characterized in that: the bolt exit
(4) metal part material is fine copper, and electric conductivity is more excellent.
5. polypropylene film capacitor as described in claim 1 high-performance end cap, it is characterized in that: the installation gasket (3)
Material is stainless steel material.
6. polypropylene film capacitor as described in claim 1 high-performance end cap, it is characterized in that: the sealing ring (5) and
Gasket (7) material is respectively silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364652.6A CN110033944A (en) | 2019-04-30 | 2019-04-30 | Polypropylene film capacitor high-performance end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364652.6A CN110033944A (en) | 2019-04-30 | 2019-04-30 | Polypropylene film capacitor high-performance end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110033944A true CN110033944A (en) | 2019-07-19 |
Family
ID=67241172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910364652.6A Pending CN110033944A (en) | 2019-04-30 | 2019-04-30 | Polypropylene film capacitor high-performance end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110033944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544579A (en) * | 2019-09-30 | 2019-12-06 | 河北拓发通信电力器材制造有限公司 | Hardware fitting kit applied to transformer erection and working method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508368Y (en) * | 2001-11-27 | 2002-08-28 | 周明基 | Explosion-proof double capacitor |
| CN204668154U (en) * | 2015-06-17 | 2015-09-23 | 铜陵市科峰电子有限责任公司 | A kind of capacitor from explosion cover plate assembly |
| CN105529187A (en) * | 2016-01-25 | 2016-04-27 | 池州市容大电气有限公司 | Explosion-proof cover assembly for capacitor |
| CN108899204A (en) * | 2018-06-29 | 2018-11-27 | 无锡宏广电容器有限公司 | Polarity fills long-service-life metal polypropylene film capacitor |
| CN209691599U (en) * | 2019-04-30 | 2019-11-26 | 无锡宏广电容器有限公司 | Polypropylene film capacitor high-performance end cap |
-
2019
- 2019-04-30 CN CN201910364652.6A patent/CN110033944A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508368Y (en) * | 2001-11-27 | 2002-08-28 | 周明基 | Explosion-proof double capacitor |
| CN204668154U (en) * | 2015-06-17 | 2015-09-23 | 铜陵市科峰电子有限责任公司 | A kind of capacitor from explosion cover plate assembly |
| CN105529187A (en) * | 2016-01-25 | 2016-04-27 | 池州市容大电气有限公司 | Explosion-proof cover assembly for capacitor |
| CN108899204A (en) * | 2018-06-29 | 2018-11-27 | 无锡宏广电容器有限公司 | Polarity fills long-service-life metal polypropylene film capacitor |
| CN209691599U (en) * | 2019-04-30 | 2019-11-26 | 无锡宏广电容器有限公司 | Polypropylene film capacitor high-performance end cap |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544579A (en) * | 2019-09-30 | 2019-12-06 | 河北拓发通信电力器材制造有限公司 | Hardware fitting kit applied to transformer erection and working method thereof |
| CN110544579B (en) * | 2019-09-30 | 2022-01-14 | 河北拓发通信电力器材制造有限公司 | Hardware fitting kit applied to transformer erection and working method thereof |
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