CN206312761U - Current spike absorbing membrane capacitor - Google Patents
Current spike absorbing membrane capacitor Download PDFInfo
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- CN206312761U CN206312761U CN201621378040.0U CN201621378040U CN206312761U CN 206312761 U CN206312761 U CN 206312761U CN 201621378040 U CN201621378040 U CN 201621378040U CN 206312761 U CN206312761 U CN 206312761U
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- absorbing membrane
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Abstract
The utility model discloses current spike absorbing membrane capacitor, by in the folded material of fuse, equivalent series layer is set, equivalent series layer can be equivalent to two electric capacity connecting with two two-sided metallization films, using voltage divider principle of connecting, capacitor is born the instantaneous pressure in absorption process；Equivalent series layer includes two double-edge metalized films, and the double-edge metal level of two double-edge metalized films is oppositely arranged, so as to increase the thickness of conductive metal layer, reduces sheet resistance, reduces heating when high current passes through, and strengthens overcurrent capability；Using two-sided metallization film as electrode, electric capacity can be equivalent in parallel, using parallel shunt principle, the absorption current distributing that electrode is born is into two loops, reduce single thin film and hold stream load, electric capacity integrally can be showed very low temperature rise in peak current absorption process, Improving The Quality of Products stability and increase the service life.
Description
Technical field
The utility model is related to electronic component field, more particularly to thin film capacitor.
Background technology
With the raising for becoming more meticulous and requiring the quality of power supply of electrical equipment, the performance of electronic component is also required to carry
It is high.Thin film capacitor is a kind of critically important capacitor, its application field with the development of society, not only in general electricity
Sub- technical field application.A large amount of new application fields endlessly occur with social development, particularly Power Electronic Technique
Field, novel energy field, electric automobile field, electric railway field, intelligent grid field, thin film capacitor is most of
In the case of be irreplaceable.Society is developing rapidly in progress, science and technology, and corresponding capacitor must also grow with each passing hour and
Adapt to this society.
Thin film capacitor technology based on metalized film is increasingly advanced, but applies in current spike absorbing circuit
Thin film capacitor peak current absorbability 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 current spike absorbing membrane electric capacity
Device, it can solve the problems, such as that existing thin film capacitor peak current absorbability is not enough.
The purpose of this utility model is realized using following technical scheme：
Current spike absorbing membrane 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
The folded material winding of fuse is formed, and the folded material of the fuse is separated from each other and parallel two-sided metallization film including two, the two-sided gold
Categoryization film two sides is equipped with the light film for insulating；The folded material of the fuse also includes equivalent series layer, the equivalent series layer bag
Two double-edge metalized films are included, the two sides of the double-edge metalized film is respectively basic unit and double-edge metal level, and two double
The double-edge metal level of side metalized film is stayed to be oppositely arranged.
Preferably, the width of the basic unit is equal with the width of the smooth film.
Preferably, two ends of the side of two two-sided metallization films respectively from the smooth film are stretched out.
Preferably, two end faces of the capacitor core all include gilding layer, and the terminal electrically connects with the gilding layer
Connect.
Preferably, the terminal is SMD terminal or lead.
Preferably, the housing includes shell and potting compound, and the potting compound is used to fill the capacitor core and shell
Between space.
Preferably, the potting compound is high temperature acid anhydrides type epoxy resin layer.
Preferably, the shell is flame-retardant PBT shell.
Preferably, the housing is cylinder, the cuboid or square of edge-smoothing transition.
Compared to existing technology, the beneficial effects of the utility model are：By in the folded material of fuse, equivalent series layer is set,
Equivalent series layer can be equivalent to two electric capacity connecting with two two-sided metallization films, using voltage divider principle of connecting, make capacitor
The instantaneous pressure in absorption process can be born；Equivalent series layer includes two double-edge metalized films, two double-edge metals
The double-edge metal level for changing film is oppositely arranged, so as to increase the thickness of conductive metal layer, sheet resistance is reduced, when reduction high current passes through
Heating, strengthen overcurrent capability.Using two-sided metallization film as electrode, electric capacity parallel connection can be equivalent to, using parallel shunt
Principle, the absorption current distributing that electrode is born reduces single thin film and holds stream load into two loops, makes the electric capacity integrally can be in point
In peak current absorption process, very low temperature rise is showed, Improving The Quality of Products stability and increase the service life.
Brief description of the drawings
Fig. 1 is the structural representation of the current spike absorbing membrane 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, the folded material of fuse；
110th, two-sided metallization film；120th, light film；130th, equivalent series layer；131st, double-edge metalized film；1311st, basic unit；1312nd, it is double
Stay side metal level.
Specific 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
Can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Current spike absorbing membrane 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 a terminal 20 of capacitor core 11 be electrically connected with, other end and another terminal 20
It is electrically connected with.With reference to Fig. 2, capacitor core 11 is formed by the folded winding of material 100 of fuse, and the folded material 100 of fuse is separated from each other including two
And parallel two-sided metallization film 110, the two sides of two-sided metallization film 110 is equipped with (such as polypropylene of light film 120 for insulating
Light film), the side of two-sided metallization film 110 forms two end faces of capacitor core 11 after the folded material 100 of fuse winds.
Using two-sided metallization film 110 as electrode, electric capacity parallel connection can be equivalent to, using parallel shunt principle, by electrode
The absorption current distributing for bearing is reduced and holds stream load per face metalized film into two loops, makes the electric capacity integrally can be in peak current
In absorption process, very low temperature rise is showed, Improving The Quality of Products stability and increase the service life.
The folded material 100 of fuse also includes equivalent series layer 130, and equivalent series layer 130 includes two double-edge metalized films
131, the two sides of double-edge metalized film 131 is respectively basic unit 1311 and double-edge metal level 1312, two double-edge metallization
The double-edge metal level 1312 of film 131 is oppositely arranged.
By setting equivalent series layer 130, equivalent series layer 130 and two two-sided metallization films in the folded material 100 of fuse
110 two electric capacity that can be equivalent to series connection, using voltage divider principle of connecting, enable capacitor to bear the moment in absorption process high
Pressure.
Equivalent series layer 130 includes two double-edge metalized films 131, two double-edges of double-edge metalized film 131
Metal level 1312 is oppositely arranged, so as to increase the thickness of conductive metal layer, reduces sheet resistance, reduces heating when high current passes through,
Enhancing overcurrent capability.
Further, the width of basic unit 1311 is equal with the width of light film 120, in order to the side of two-sided metallization film 110
Expose the end face to form capacitor core 11.The two ends of two sides of two-sided metallization film 110 respectively from light film 120 are stretched out.
After the folded material 100 of fuse winds, two two-sided metallization films 110 have one end to expose respectively, without the light film 120 for insulating or basic unit
The conduction of 1311 influence electricity.
Further, current spike absorbing membrane 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.Preferably, 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.Fuse after gilding layer 13 makes winding is folded
The conducting surface of material 100, i.e., the side connectedness of the two two-sided metallization films 110 for being stretched out from the two ends of light film 120 is stronger；And pass through
Gilding layer 13 draws two terminals 20, and the lead-out mode stray inductance than being inserted electrode by lead-out wire 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；Preferably, potting compound is high temperature acid anhydrides type epoxy resin layer.Shell is flame-retardant PBT shell, thin with strengthening electric current peak absorbing
The security performance of membrane capacitance.Housing 12 can be cylinder, the cuboid or square of edge-smoothing transition.
For a person skilled in the art, technical scheme that can be as described above and design, make other each
Plant corresponding change and deform, and all these changes and deforms the guarantor that should all belong to the utility model claim
Within the scope of shield.
Claims (9)
1. current spike absorbing membrane 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 to be formed by the folded material winding of fuse, the folded material of the fuse is separated from each other and parallel two-sided metallization film, institute including two
State two-sided metallization film two sides be equipped with for insulate light film；The folded material of the fuse also includes equivalent series layer, described equivalent
Series connection layer includes two double-edge metalized films, and the two sides of the double-edge metalized film is respectively basic unit and double-edge metal
Layer, the double-edge metal level of two double-edge metalized films is oppositely arranged.
2. current spike absorbing membrane capacitor as claimed in claim 1, it is characterised in that：The width of the basic unit with it is described
The width of light film is equal.
3. current spike absorbing membrane capacitor as claimed in claim 2, it is characterised in that：Two two-sided metallization films
Two ends of the side respectively from the smooth film stretch out.
4. the current spike absorbing membrane 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. current spike absorbing membrane capacitor as claimed in claim 4, it is characterised in that：The terminal is SMD terminal
Or lead.
6. the current spike absorbing membrane 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. current spike absorbing membrane capacitor as claimed in claim 6, it is characterised in that：The potting compound is high temperature acid anhydrides
Type epoxy resin layer.
8. current spike absorbing membrane capacitor as claimed in claim 6, it is characterised in that：The shell is outside flame-retardant PBT
Shell.
9. the current spike absorbing membrane 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 |
|---|---|---|---|
| CN201621378040.0U CN206312761U (en) | 2016-12-15 | 2016-12-15 | Current spike absorbing membrane capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378040.0U CN206312761U (en) | 2016-12-15 | 2016-12-15 | Current spike absorbing membrane capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312761U true CN206312761U (en) | 2017-07-07 |
Family
ID=59251555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621378040.0U Active CN206312761U (en) | 2016-12-15 | 2016-12-15 | Current spike absorbing membrane capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240498A (en) * | 2017-07-25 | 2017-10-10 | 浙江七星电容器有限公司 | A kind of power reforming type Absorption Capacitance |
| CN108597870A (en) * | 2018-05-28 | 2018-09-28 | 四川中星电子有限责任公司 | A kind of moisture-proof film capacitor and preparation method thereof |
| CN114334451A (en) * | 2021-11-26 | 2022-04-12 | 西安交通大学 | Metallized film capacitor |
-
2016
- 2016-12-15 CN CN201621378040.0U patent/CN206312761U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240498A (en) * | 2017-07-25 | 2017-10-10 | 浙江七星电容器有限公司 | A kind of power reforming type Absorption Capacitance |
| CN108597870A (en) * | 2018-05-28 | 2018-09-28 | 四川中星电子有限责任公司 | A kind of moisture-proof film capacitor and preparation method thereof |
| CN108597870B (en) * | 2018-05-28 | 2024-03-08 | 四川中星电子有限责任公司 | Dampproof film capacitor and preparation method thereof |
| CN114334451A (en) * | 2021-11-26 | 2022-04-12 | 西安交通大学 | Metallized film capacitor |
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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: Current spike absorbs film capacitor Effective date of registration: 20180103 Granted publication date: 20170707 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: 20170707 Pledgee: China Co. truction Bank Corp Dongguan Tangxia branch Pledgor: DONGGUAN WEIDY INDUSTRIAL Co.,Ltd. Registration number: 2017440000223 |