CN206340451U - High voltage climb rate thin film capacitor - Google Patents
High voltage climb rate thin film capacitor Download PDFInfo
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- CN206340451U CN206340451U CN201621378071.6U CN201621378071U CN206340451U CN 206340451 U CN206340451 U CN 206340451U CN 201621378071 U CN201621378071 U CN 201621378071U CN 206340451 U CN206340451 U CN 206340451U
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- thin film
- climb rate
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Abstract
The utility model discloses high voltage climb rate thin film capacitor, including body and terminal, body includes capacitor core and housing, and two end faces of capacitor core are electrically connected with a terminal respectively；Capacitor core is folded material winding by fuse and formed, and fuse folds one side intermediately remained border metalized film, two-sided intermediately remained border metalized film, first medium light film, equivalent series metalized film and the second medium light film that material includes overlapping successively.Three sub- electric capacity parallel with one another are constructed by the metal level on one side intermediately remained border metalized film and two-sided intermediately remained border metalized film, according to parallel shunt principle, the 1/3 of total current is solely subjected to per road, so as to lift the current peak ability for bearing the generation of the high voltage climb rate；Utilize equivalent series metalized film formation series capacitance structure, enhance the voltage endurance capability of high voltage climb rate thin film capacitor, the corona voltage that the end face of reduction capacitor core is born, is improved in the anti-end face discharge capability in high dv/dt application scenarios, it is ensured that product quality stability.
Description
Technical field
The utility model is related to electronic component field, more particularly to thin film capacitor.
Background technology
Thin film capacitor is a kind of critically important capacitor, and its application field not only exists with the development of society
General electronic technology field application.A large amount of new application fields endlessly occur with social development, particularly electric power electricity
Sub- technical field, novel energy field, electric automobile field, electric railway field, intelligent grid field, thin film capacitor exist
It is in most cases irreplaceable.Society is in progress, and science and technology is being developed rapidly, corresponding capacitor also must and when
It is all to come in adapt to this society.
Thin film capacitor technology based on metalized film is also increasingly advanced, but applies in high voltage climb rate circuit
Thin film capacitor performance it is still to be improved.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide high voltage climb rate thin-film capacitor
Device, its can solve existing thin film capacitor bear the high voltage climb rate generation current peak ability it is weaker the problem of.
The purpose of this utility model is realized using following technical scheme：
High voltage climb rate thin film capacitor, including body and terminal, the body include capacitor core and housing, described
One end face of capacitor core and a terminal are electrically connected with, and other end is electrically connected with another terminal；The capacitor core by
Fuse fold material winding forms, the fuse fold material include overlap successively one side intermediately remained border metalized film, two-sided intermediately remained border metal
Change film, first medium light film, equivalent series metalized film and second medium light film；
The one side intermediately remained border metalized film includes the first basement membrane, the first basement membrane dorsad two-sided intermediately remained border metal
The one side for changing film is provided with the first left pole metal level and the first right pole metal level for being parallel to each other and separating；
The two-sided intermediately remained border metalized film includes the second basement membrane, and second basement membrane is towards the one side intermediately remained border metal
The one side for changing film is provided with the second left pole metal level and the second right pole metal level for being parallel to each other and separating；
Second basement membrane dorsad the one side intermediately remained border metalized film one side be provided be parallel to each other and separate the 3rd
Left pole metal level and the 3rd right pole metal level；
The equivalent series metalized film includes the 3rd basement membrane, the two sides of the 3rd basement membrane be respectively equipped with metal level and
Lower metal layer.
It is preferred that, the one side intermediately remained border metalized film is equal with the width of two-sided intermediately remained border metalized film, and more than institute
State the width of first medium light film and second medium light film.
It is preferred that, the width of the equivalent series metalized film is less than the first medium light film and second medium light film
Width.
It is preferred that, two end faces of the capacitor core all include gilding layer, and the terminal electrically connects with the gilding layer
Connect.
It is preferred that, the terminal is SMD terminal or lead.
It is preferred that, the housing includes shell and potting compound, and the potting compound is used to fill the capacitor core and shell
Between space.
It is preferred that, the potting compound is high temperature acid anhydrides type epoxy resin layer.
It is preferred that, the shell is flame-retardant PBT shell.
It is preferred that, the housing is cylinder, the cuboid or square of edge-smoothing transition.
Compared with prior art, the beneficial effects of the utility model are：By one side intermediately remained border metalized film and it is two-sided in
Stay the metal level on the metalized film of side to construct three sub- electric capacity parallel with one another, using parallel shunt principle, be solely subjected to always per road
The 1/3 of electric current, so as to lift the current peak ability for bearing the generation of the high voltage climb rate；Formed using equivalent series metalized film
Series capacitance structure, from series connection voltage divider principle, enhances the voltage endurance capability of high voltage climb rate thin film capacitor, reduction electricity
Hold the corona voltage that the end face of fuse is born, improve in the anti-end face discharge capability in high dv/dt application scenarios, it is ensured that product matter
Measure stability.
Brief description of the drawings
Fig. 1 is the structural representation for the high voltage climb rate thin film capacitor that the utility model is provided.
Fig. 2 is the structural representation of the folded material of fuse in Fig. 1.
Description of symbols：10th, body；11st, capacitor core；12nd, housing；13rd, gilding layer；20th, terminal；100th, fuse folds material；
110th, one side intermediately remained border metalized film；111st, the first basement membrane；112nd, the first left pole metal level；113rd, first is right extremely golden
Belong to layer；120th, two-sided intermediately remained border metalized film；121st, the second basement membrane；122nd, the second left pole metal level；123rd, the second right pole metal
Layer；124th, the 3rd left pole metal level；125th, the 3rd right pole metal level；130th, equivalent series metalized film；131st, the 3rd basement membrane；
132nd, upper metal level；133rd, lower metal layer；210th, first medium light film；220th, second medium light film.
Embodiment
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
High voltage climb rate thin film capacitor as shown in Figure 1, including body 10 and terminal 20.Wherein body 10 includes electricity
Hold fuse 11 and housing 12, an end face and the terminal 20 of capacitor core 11 are electrically connected with, other end and another terminal 20
It is electrically connected with.With reference to Fig. 2, capacitor core 11 is wound by the folded material 100 of fuse and formed, and fuse folds the list that material 100 includes overlapping successively
Face intermediately remained border metalized film 110, two-sided intermediately remained border metalized film 120, first medium light film 210, equivalent series metalized film 130
With second medium light film 220.
One side intermediately remained border metalized film 110 includes the first basement membrane 111, the dorsad two-sided intermediately remained border metallization of the first basement membrane 111
The one side of film 120 is provided with the first right pole metal level 113 of left pole metal level 112 and first for being parallel to each other and separating.First left pole
The right pole metal level 113 of metal level 112 and first can regard a sub- electric capacity as.
Two-sided intermediately remained border metalized film 120 includes the second basement membrane 121, and the second basement membrane 121 metallizes towards one side intermediately remained border
The one side of film 110 is provided with the second right pole metal level 123 of left pole metal level 122 and second for being parallel to each other and separating.Second left pole
The right pole metal level 123 of metal level 122 and second can regard another sub- electric capacity as.
Second basement membrane 121 dorsad one side intermediately remained border metalized film 110 one side be provided be parallel to each other and separate the 3rd a left side
The right pole metal level 125 of pole metal level 124 and the 3rd.The 3rd right pole metal level 125 of left pole metal level 124 and the 3rd can be regarded as again
One sub- electric capacity.Three sub- electric capacity are equivalent to parallel with one another, when the high dv/dt instantaneous large-currents produced pass through metal level electrode
When, it is divided into three roads and is shunted, be only equivalent to bear the 1/3 of total current per road, is substantially improved and bears the generation of the high voltage climb rate
Current peak ability.
Equivalent series metalized film 130 includes the 3rd basement membrane 131, and the two sides of the 3rd basement membrane 131 is respectively equipped with metal level
132 and lower metal layer 133.Equivalent series metalized film 130 respectively with the first right pole metal level of left pole metal level 112 and first
113rd, the second right pole metal level 123 of left pole metal level 122 and second, the 3rd right pole metal level 125 of left pole metal level 124 and the 3rd
Series capacitance structure is formed, using voltage divider principle of connecting, the voltage endurance capability of high voltage climb rate thin film capacitor is enhanced, reduced
The corona voltage that the end face of capacitor core 11 is born, is improved in the anti-end face discharge capability in high dv/dt application scenarios, it is ensured that production
Quality stability.
Further, one side intermediately remained border metalized film 110 is equal with the width of two-sided intermediately remained border metalized film 120, and is more than
The width of first medium light film 210 and second medium light film 220.It is easy to the edge of each metal level to expose first medium light film 210
With the width of second medium light film 220, conducting surface is formed after winding, and the first medium light film 210 and second without insulation is situated between
Matter light film 220 influences the conduction of electricity.The width of equivalent series metalized film 130 is less than first medium light film 210 and second medium
The width of light film 220, to ensure that upper metal level 132, lower metal layer 133 will not be with conducting surface short circuits.
Further, high voltage climb rate thin film capacitor uses the noninductive lead-out mode of electrode, i.e., two terminals 20 are each from electricity
The left side and right side for holding fuse 11 are drawn.It is preferred that, the both ends of the surface of capacitor core 11 all include gilding layer 13, terminal 20 with
Gilding layer 13 is electrically connected with.Terminal 20 can be SMD terminal or lead.The fuse after winding is folded by gilding layer 13
The conducting surface of material 100, it is connective stronger；And two terminals 20 are drawn by gilding layer 13, than inserting electrode by lead-out wire
Lead-out mode stray inductance is obviously reduced.
Further, housing 12 includes shell and potting compound, and potting compound is used to fill the sky between capacitor core 11 and shell
Gap；It is preferred that, potting compound is high temperature acid anhydrides type epoxy resin layer, for sealing fixation.Shell is flame-retardant PBT shell, to strengthen
The security performance of high voltage climb rate thin film capacitor.Housing 12 can be cylinder, the cuboid of edge-smoothing transition or just
Cube.
" first ", " second " and " the 3rd " that the utility model is related to is only used for distinguishing different parts, does not possess differentiation suitable
Sequence is acted on；" on ", " under ", " left side " and " right side " is only used for distinguishing different parts, does not possess the effect of differentiation direction.
For a person skilled in the art, technical scheme that can be as described above and design, make other each
It is kind corresponding to change and deform, and all these change and deformation should all belong to the guarantor of the utility model claim
Within the scope of shield.
Claims (9)
1. high voltage climb rate thin film capacitor, it is characterised in that：Including body and terminal, the body include capacitor core and
Housing, an end face of the capacitor core and a terminal are electrically connected with, and other end is electrically connected with another terminal；The electricity
Hold fuse by fuse fold material winding form, the fuse fold material include overlap successively one side intermediately remained border metalized film, it is two-sided in
Stay side metalized film, first medium light film, equivalent series metalized film and second medium light film；
The one side intermediately remained border metalized film includes the first basement membrane, the first basement membrane dorsad two-sided intermediately remained border metalized film
One side be provided with the first left pole metal level and the first right pole metal level that are parallel to each other and separate；
The two-sided intermediately remained border metalized film includes the second basement membrane, and second basement membrane is towards the one side intermediately remained border metalized film
One side be provided with the second left pole metal level and the second right pole metal level that are parallel to each other and separate；
The one side of the second basement membrane dorsad one side intermediately remained border metalized film is provided with the 3rd left pole that is parallel to each other and separates
Metal level and the 3rd right pole metal level；
The equivalent series metalized film includes the 3rd basement membrane, and the two sides of the 3rd basement membrane is respectively equipped with metal level and lower gold
Belong to layer.
2. high voltage climb rate thin film capacitor as claimed in claim 1, it is characterised in that：The one side intermediately remained border metallization
Film is equal with the width of two-sided intermediately remained border metalized film, and more than the first medium light film and the width of second medium light film.
3. high voltage climb rate thin film capacitor as claimed in claim 1, it is characterised in that：The equivalent series metalized film
Width be less than the width of the first medium light film and second medium light film.
4. the high voltage climb rate thin film capacitor as any one of claim 1-3, it is characterised in that：The capacitance core
Two end faces of son all include gilding layer, and the terminal is electrically connected with the gilding layer.
5. high voltage climb rate thin film capacitor as claimed in claim 4, it is characterised in that：The terminal is SMD terminal
Or lead.
6. the high voltage climb rate thin film capacitor as any one of claim 1-3, it is characterised in that：The housing bag
Shell and potting compound are included, the potting compound is used to fill the space between the capacitor core and shell.
7. high voltage climb rate thin film capacitor as claimed in claim 6, it is characterised in that：The potting compound is high temperature acid anhydrides
Type epoxy resin layer.
8. high voltage climb rate thin film capacitor as claimed in claim 6, it is characterised in that：The shell is outside flame-retardant PBT
Shell.
9. the high voltage climb rate thin film capacitor as any one of claim 1-3, it is characterised in that：The housing is
Cylinder, the cuboid or square of edge-smoothing transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378071.6U CN206340451U (en) | 2016-12-15 | 2016-12-15 | High voltage climb rate thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378071.6U CN206340451U (en) | 2016-12-15 | 2016-12-15 | High voltage climb rate thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340451U true CN206340451U (en) | 2017-07-18 |
Family
ID=59301796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621378071.6U Active CN206340451U (en) | 2016-12-15 | 2016-12-15 | High voltage climb rate thin film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340451U (en) |
-
2016
- 2016-12-15 CN CN201621378071.6U patent/CN206340451U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High voltage climb rate film capacitor Effective date of registration: 20180103 Granted publication date: 20170718 Pledgee: China Co truction Bank Corp Dongguan Tangxia branch Pledgor: DONGGUAN WEIDY INDUSTRIAL CO., LTD. Registration number: 2017440000223 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220328 Granted publication date: 20170718 Pledgee: China Co. truction Bank Corp Dongguan Tangxia branch Pledgor: DONGGUAN WEIDY INDUSTRIAL Co.,Ltd. Registration number: 2017440000223 |