CN205984657U - Explosion -proof metallized film capacitor of dry -type - Google Patents
Explosion -proof metallized film capacitor of dry -type Download PDFInfo
- Publication number
- CN205984657U CN205984657U CN201620393134.9U CN201620393134U CN205984657U CN 205984657 U CN205984657 U CN 205984657U CN 201620393134 U CN201620393134 U CN 201620393134U CN 205984657 U CN205984657 U CN 205984657U
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- capacitor
- housing
- zinc
- metallized film
- casing
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Abstract
The utility model discloses an explosion -proof metallized film capacitor of dry -type, including electrode, electric capacity core, casing, rubber buffer and insulating layer, the internally mounted of casing has the electric capacity core, and the rubber buffer is installed to the upper shed of casing, and the surface of casing is equipped with and gathers the diethyl terephthalate antistatic backing, the electrode passes the rubber buffer to be connected with the electric capacity core, and the electric capacity core has epoxy with the break joint gap filling of casing, and the electric capacity core is formed by the metallized film system, and metallized film includes polypropylene film dielectric layer and zinc -aluminium layer, and wherein the zinc -aluminium laminating attaches the surface at the polypropylene film dielectric layer, and the zinc -aluminium layer is network structure, and metallized film is by insulation layer package. Still has established in the netted explosion -proof metallized film capacitor's of this dry -type the casing and has gathered the diethyl terephthalate antistatic backing, its greatly reduced the condenser by electrostatic breakdown's probability.
Description
Technical field
This utility model is related to capacitor technology field, more particularly, to a kind of dry type explosion-prevention metallic film capacitor.
Background technology
Noinductive capacitor on market is varied, and the more common pressure explosion-proof device liquid feeding body that generally adopts is filled
Mode.Occur inefficacy to puncture if its operation principle is exactly capacitor core, form transcient short circuit time and produce amount of heat by metalized film
Gasification, producing a large amount of gases makes electric capacity internal pressure increase, and until capacitive pressure riot gear is deformed breaking electrode, makes
The capacitor working is in open-circuit condition, thus reaching the purpose preventing capacitor blast.
But mostly such capacitor is liquid filling, and structure is more complicated, and processing technique difficulty is big, because mounting technology is bad
And cause the phenomenon that noinductive capacitor is scrapped often to occur, there is also potting and not constitute performance hidden danger.Further, since it is existing
Noinductive capacitor is had mainly to adopt oil immersed type, a kind of this mode is favourable to the flowing of gas, but when noinductive capacitor lost efficacy,
Due to housing excessive deformation it is easy to cause filler to leak, used of seat belts some problems to capacitor.Add
Oil immersed type capacitor needs housing is carried out it is necessary to using the chemical reagent that can make the dissolving of oiliness filler, such as banana oil
Deng, if processing bad, not only to operator's actual bodily harm, also can be to environment.
And, capacitor is easy to by electrostatic breakdown when using, and does not also have capacitor to solve this problem on the market.
Therefore, we be badly in need of designing a kind of dry type explosion-prevention metallic film capacitor solve the problems, such as mentioned above.
Content of the invention
The purpose of this utility model is to solve shortcoming present in prior art, and a kind of dry type explosion-prevention gold proposing
Genusization thin film capacitor.
To achieve these goals, this utility model employs following technical scheme：
A kind of dry type explosion-prevention metallic film capacitor, including electrode, capacitor core, housing, rubber stopper and insulating barrier, institute
The inside stating housing is provided with capacitor core, and the upper shed of housing is provided with rubber stopper, and the outer surface of housing is provided with and gathers to benzene two
Formic acid diethylester antistatic backing, described electrode is connected through rubber stopper with capacitor core, and between capacitor core and housing, gap is filled out
It is filled with epoxy resin, capacitor core is rolled by metallized film and forms, metallized film includes polypropylene film dielectric layer and zinc
Aluminium lamination, wherein zinc-aluminium layer are attached to the outer surface of polypropylene film dielectric layer, and zinc-aluminium layer is in network structure, and metallized film is exhausted
Edge layer is wrapped up.
Preferably, described zinc-aluminium layer assumes diamond in shape network structure.
Preferably, described insulating barrier adopts PMP mylar or DMD mylar.
Preferably, described housing adopts silver housing or aluminum housing.
In this utility model, this dry type mesh explosion-proof metallic film capacitor capacitor core thereon is by polypropylene film
The metallic film of dielectric layer and zinc-aluminium layer composition rolls composition, and it instead of the capacitor of traditional liquid filling, and it produces work
Skill reduces, and increases also to have set in production efficiency, and the housing of this dry type mesh explosion-proof metallic film capacitor and gathers to benzene
Dicarboxylate antistatic backing, it greatly reduces capacitor by the probability of electrostatic breakdown.
Brief description
Fig. 1 be the utility model proposes a kind of dry type explosion-prevention metallic film capacitor structural representation；
Fig. 2 be the utility model proposes a kind of dry type explosion-prevention metallic film capacitor sectional drawing；
Fig. 3 be the utility model proposes a kind of housing of dry type explosion-prevention metallic film capacitor structural representation.
In figure：1 electrode, 2 polyethylene terephthalate's antistatic backings, 3 capacitor cores, 4 housings, 5 epoxy resin, 6 rubbers
Plug, 7 insulating barriers, 31 polypropylene film dielectric layers, 32 zinc-aluminium layers.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.
Reference picture 1-3, a kind of dry type explosion-prevention metallic film capacitor, including electrode 1, capacitor core 3, housing 4, rubber
Plug 6 and insulating barrier 7, the inside of housing 4 is provided with capacitor core 3, and the upper shed of housing 4 is provided with rubber stopper 6, outside housing 4
Surface is provided with polyethylene terephthalate's antistatic backing 2, and electrode 1 is connected through rubber stopper 6 with capacitor core 3, capacitor core 3
Gap filling has epoxy resin 5 and housing 4 between, and capacitor core 3 is rolled by metallized film and forms, and metallized film includes gathering
Polypropylene film dielectric layer 31 and zinc-aluminium layer 32, wherein zinc-aluminium layer 32 are attached to the outer surface of polypropylene film dielectric layer 31, zinc-aluminium
Layer 32 is in network structure, and metallized film wrapped up by insulating barrier 7, and zinc-aluminium layer 32 assumes diamond in shape network structure, and insulating barrier 7 adopts PMP
Mylar or DMD mylar, housing 4 adopts silver housing or aluminum housing.
During assembling, first the capacitor core 3 being welded extraction electrode 1 is put in housing 4；Secondly rubber stopper 6 envelope is installed
Dress；Then the fill orifice passing through rubber stopper 6 fills high-temp resisting high-humidity resisting epoxy resin 5 by several times, so that capacitor core 3 is formed with housing 4
One entirety.Because hot and humid epoxy resin viscosity is high, constriction coefficient is little, and hot and humid epoxy resin 5 and housing 4 closely glue
Connect together, under the service condition of 85 DEG C to -40 DEG C of high temperature, epoxy resin 5 will not separate capacitor with housing 4, no
Capacitor core 3 can be caused to produce obscission.The capacitor core 3 making after embedding and housing 4 form an entirety, add that high temperature is high
The good airproof performance of wet epoxy resin 5, tight gapless, hot and humid dry-type capacitance between rubber stopper 6, housing 4, capacitor core 3
When device runs under conditions of humidity 85%, the electrical property of capacitor will not produce any impact.
The addition of polyethylene terephthalate's antistatic backing 2 reduces capacitor by the possibility of electrostatic breakdown.
More than, only this utility model preferably specific embodiment, but protection domain of the present utility model does not limit to
In this, any those familiar with the art in the technical scope that this utility model discloses, according to this utility model
Technical scheme and its utility model design in addition equivalent or change, all should cover protection domain of the present utility model it
Interior.
Claims (4)
1. a kind of dry type explosion-prevention metallic film capacitor, including electrode（1）, capacitor core（3）, housing（4）, rubber stopper（6）
And insulating barrier（7）It is characterised in that described housing（4）Inside capacitor core is installed（3）, housing（4）Upper shed install
There is rubber stopper（6）, housing（4）Outer surface be provided with polyethylene terephthalate's antistatic backing（2）, described electrode（1）Pass through
Rubber stopper（6）With capacitor core（3）Connect, capacitor core（3）With housing（4）Between gap filling have epoxy resin（5）, electric capacity
Fuse（3）Rolled by metallized film and form, metallized film includes polypropylene film dielectric layer（31）And zinc-aluminium layer（32）, its
Middle zinc-aluminium layer（32）It is attached to polypropylene film dielectric layer（31）Outer surface, zinc-aluminium layer（32）In network structure, metallization is thin
Film is by insulating barrier（7）Parcel.
2. capacitor according to claim 1 is it is characterised in that described zinc-aluminium layer（32）Assume diamond in shape network structure.
3. capacitor according to claim 1 is it is characterised in that described insulating barrier（7）Using PMP mylar or
DMD mylar.
4. capacitor according to claim 1 is it is characterised in that described housing（4）Using silver housing or aluminum shell
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393134.9U CN205984657U (en) | 2016-05-04 | 2016-05-04 | Explosion -proof metallized film capacitor of dry -type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393134.9U CN205984657U (en) | 2016-05-04 | 2016-05-04 | Explosion -proof metallized film capacitor of dry -type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984657U true CN205984657U (en) | 2017-02-22 |
Family
ID=58018900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620393134.9U Expired - Fee Related CN205984657U (en) | 2016-05-04 | 2016-05-04 | Explosion -proof metallized film capacitor of dry -type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205984657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180700A (en) * | 2017-05-05 | 2017-09-19 | 广东意壳电子科技有限公司 | A kind of high current dry type explosion-prevention thin film capacitor |
-
2016
- 2016-05-04 CN CN201620393134.9U patent/CN205984657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180700A (en) * | 2017-05-05 | 2017-09-19 | 广东意壳电子科技有限公司 | A kind of high current dry type explosion-prevention thin 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170504 |