CN203444987U - AC high-voltage high-pulse thin film capacitor - Google Patents
AC high-voltage high-pulse thin film capacitor Download PDFInfo
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- CN203444987U CN203444987U CN201320615636.8U CN201320615636U CN203444987U CN 203444987 U CN203444987 U CN 203444987U CN 201320615636 U CN201320615636 U CN 201320615636U CN 203444987 U CN203444987 U CN 203444987U
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- pure aluminum
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Abstract
Disclosed is an AC high-voltage high-pulse thin film capacitor including a capacitor core, two quaternary alloy electrodes, two fine copper tinned electrode leads, an acid anhydride epoxy sealed thermal insulating layer and a PBT plastic housing. The two quaternary alloy electrodes are sprayed respectively on two tail ends of the capacitor core. The two electrode leads are welded on the two quaternary alloy electrodes. The capacitor core is accommodated in the plastic housing. The acid anhydride epoxy sealed thermal insulating layer is filled between the capacitor core and the plastic housing. The capacitor core includes an inner core and an outer core. The inner core comprises a first base film and three evenly spaced first polypropylene fine aluminum metalized films plated on the first base film, and the outer core comprises a second base film and two spaced second polypropylene fine aluminum metalized films plated on the central portion of the second base film. The inner core and the outer core are superimposed and wound into a columnar capacitor core with a quaternary series connection structure. The above AC high-voltage high-pulse thin film capacitor is capable of improving the over-current capability of the capacitor and withstanding the AC high-voltage load to ensure product stability.
Description
Technical field
The utility model relates to a kind of ac high-voltage high impulse film capacitor.
Background technology
Ac high-voltage pulse film capacitor is widely used in electrical lighting industry, because operating voltage mostly is high temperature humidity up to 900VAC and operational environment, so require higher to capacitor requirement of withstand voltage and high frequency characteristics, it is improper that product design or processing procedure are controlled, be easy to generate heat at work serious, cause burning inefficacy.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of stability and the good ac high-voltage high impulse film capacitor of electrical property.
For achieving the above object, the utility model adopts following technical scheme:
A high impulse film capacitor, it comprises capacitance core, two quaternary alloy electrodes, the zinc-plated contact conductor of two fine copper, acid anhydride based epoxy resin sealing thermal insulation layer and PBT plastic casing; Two quaternary alloy electrodes are sprayed on respectively two ends of this capacitance core, and the welding of the zinc-plated contact conductor difference of two fine copper is on two quaternary alloy electrodes; This capacitance core is contained in this PBT plastic casing, and acid anhydride based epoxy resin sealing thermal insulation layer is filled between this capacitance core and this PBT plastic casing; This capacitance core comprises inner core and outer core, and inner core comprises the first basement membrane and is plated on first epilamellar three even the first polypropylene pure aluminum metal film spaced apart; This outer core comprises the second basement membrane and is plated on the two second polypropylene pure aluminum metal films at the middle part of the second basement membrane, and two second polypropylene pure aluminum metal films are spaced apart; This inner core and the superimposed coiling of outer core form the column capacitance core of four cascaded structures.
Further, the sheet resistance of the first polypropylene pure aluminum metal film and the second polypropylene pure aluminum metal film is 1.5 ohm to 2.0 ohm.
The beneficial effects of the utility model are as follows:
1, capacitance core of the present utility model adopts high temperature modification polypropylene fine aluminium low-square-resistance metallized film and the design of four cascaded structures, can make capacitor overcurrent capability significantly improve and can bear higher ac high-voltage load, guaranteeing the stability of product when ac high-voltage high impulse circuit is used.
2, adopt the low melting point quaternary alloy metal spraying utmost point, can reduce metal spraying powder temperature in metal spraying operation, reduce to fuse end damage, metal spraying powder and fuse end joined degree are better, contact resistance is less, reduction DF value.
3, adopt fine copper tinned wire as extraction electrode, when welding sequence, with the easier welding of metal spraying end face of low melting point, during welding, generate heat low, reduce the impact of welding high temperature on fuse end face, guarantee that contact is good.
4, adopt anhydrides high temperature modification high-purity epoxy resin to carry out packaging operation, in the time of can effectively preventing that product from being used under high temperature environment, isolated extraneous moisture, avoids affecting product core material, causes capacity attenuation or inefficacy.
5, adopt fire-retardant (UL94/V-0 level) functional PBT plastic casing to encapsulate, can guarantee that product stops the burning of product fuse when appearance is abnormal, reduce potential safety hazard, avoid producing larger loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiments of the utility model ac high-voltage high impulse film capacitor.
Fig. 2 is the structural representation of capacitance core of the ac high-voltage high impulse film capacitor of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1 and Fig. 2, the utility model relates to a kind of ac high-voltage high impulse film capacitor, its preferred embodiments comprises capacitance core 20, two quaternary alloy electrodes 30, the zinc-plated contact conductor 40 of two fine copper, acid anhydride based epoxy resin sealing thermal insulation layer 70 and PBT(polybutylene terephthalate, polybutylene terephthalate (PBT)) plastic casing 10.
This capacitance core 20 comprises inner core and outer core, and inner core comprises the first basement membrane 22 and is plated on evenly the first polypropylene pure aluminum metal film 21 spaced apart of three on the first basement membrane 22.This outer core comprises the second basement membrane 24 and is plated on two second polypropylene pure aluminum metal film 23, the two second polypropylene pure aluminum metal films 23 at middle part of the second basement membrane 24 spaced apart.This inner core and the superimposed coiling of outer core form the column capacitance core of four cascaded structures.The sheet resistance of the first polypropylene pure aluminum metal film 21 and the second polypropylene pure aluminum metal film 23 is 1.5 ohm to 2.0 ohm.
Two quaternary alloy electrodes 30 are sprayed on respectively two ends of this capacitance core 20, and the zinc-plated contact conductor 40 difference weldings of two fine copper are on two quaternary alloy electrodes 30.This capacitance core 20 is contained in this PBT plastic casing 10, and acid anhydride based epoxy resin sealing thermal insulation layer 70 is filled between this capacitance core 20 and this PBT plastic casing 10.
Capacitance core of the present utility model adopts high temperature modification polypropylene fine aluminium low-square-resistance metallized film and the design of four cascaded structures, can make capacitor overcurrent capability significantly improve and can bear higher ac high-voltage load, guaranteeing the stability of product when ac high-voltage high impulse circuit is used.
Adopt the low melting point quaternary alloy metal spraying utmost point, can reduce metal spraying powder temperature in metal spraying operation, reduce to fuse end damage, metal spraying powder and fuse end joined degree are better, contact resistance is less, reduction DF value.
Adopt fine copper tinned wire as extraction electrode, when welding sequence, with the easier welding of metal spraying end face of low melting point, during welding, generate heat low, reduce the impact of welding high temperature on fuse end face, guarantee that contact is good.
Adopt anhydrides high temperature modification high-purity epoxy resin to carry out packaging operation, in the time of can effectively preventing that product from being used under high temperature environment, isolated extraneous moisture, avoids affecting product core material, causes capacity attenuation or inefficacy.
Adopt fire-retardant (UL94/V-0 level) functional PBT plastic casing to encapsulate, can guarantee that product stops the burning of product fuse when appearance is abnormal, reduce potential safety hazard, avoid producing larger loss.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection range of the utility model claim within.
Claims (2)
1. an ac high-voltage high impulse film capacitor, is characterized in that: it comprises capacitance core, two quaternary alloy electrodes, the zinc-plated contact conductor of two fine copper, acid anhydride based epoxy resin sealing thermal insulation layer and PBT plastic casing; Two quaternary alloy electrodes are sprayed on respectively two ends of this capacitance core, and the welding of the zinc-plated contact conductor difference of two fine copper is on two quaternary alloy electrodes; This capacitance core is contained in this PBT plastic casing, and acid anhydride based epoxy resin sealing thermal insulation layer is filled between this capacitance core and this PBT plastic casing; This capacitance core comprises inner core and outer core, and inner core comprises the first basement membrane and is plated on first epilamellar three even the first polypropylene pure aluminum metal film spaced apart; This outer core comprises the second basement membrane and is plated on the two second polypropylene pure aluminum metal films at the middle part of the second basement membrane, and two second polypropylene pure aluminum metal films are spaced apart; This inner core and the superimposed coiling of outer core form the column capacitance core of four cascaded structures.
2. ac high-voltage high impulse film capacitor as claimed in claim 1, is characterized in that: the sheet resistance of the first polypropylene pure aluminum metal film and the second polypropylene pure aluminum metal film is 1.5 ohm to 2.0 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615636.8U CN203444987U (en) | 2013-09-30 | 2013-09-30 | AC high-voltage high-pulse thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615636.8U CN203444987U (en) | 2013-09-30 | 2013-09-30 | AC high-voltage high-pulse thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444987U true CN203444987U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615636.8U Expired - Fee Related CN203444987U (en) | 2013-09-30 | 2013-09-30 | AC high-voltage high-pulse thin film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390285A (en) * | 2015-11-04 | 2016-03-09 | 太仓荣中机电科技有限公司 | Capacitor |
| CN115662790A (en) * | 2022-09-30 | 2023-01-31 | 东莞市纬迪实业有限公司 | Be applied to mutual-inductor superhigh pressure condenser |
-
2013
- 2013-09-30 CN CN201320615636.8U patent/CN203444987U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390285A (en) * | 2015-11-04 | 2016-03-09 | 太仓荣中机电科技有限公司 | Capacitor |
| CN105390285B (en) * | 2015-11-04 | 2018-09-14 | 佛山市顺德区宏邺电器有限公司 | A kind of capacitor |
| CN115662790A (en) * | 2022-09-30 | 2023-01-31 | 东莞市纬迪实业有限公司 | Be applied to mutual-inductor superhigh pressure condenser |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20200930 |