CN104517731A - Using thin film capacitor as Y2 safety certification capacitor technology - Google Patents
Using thin film capacitor as Y2 safety certification capacitor technology Download PDFInfo
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- CN104517731A CN104517731A CN201310453484.0A CN201310453484A CN104517731A CN 104517731 A CN104517731 A CN 104517731A CN 201310453484 A CN201310453484 A CN 201310453484A CN 104517731 A CN104517731 A CN 104517731A
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Abstract
The invention discloses using a thin film capacitor as an Y2 safety certification capacitor technology, and relates to the technical field of capacitor, and specifically relates to a thin film capacitor replacing an Y2 safety certification capacitor technology. A capacitor is formed by two leads, a capacitor core and a body. The capacitor core uses metal plating layers as electrodes, and uses polypropylene film as medium. Leads are welded on the electrodes of the capacitor core, and the capacitor core is packaged in a box type to form the capacitor. The technology solves problems that existing ceramic capacitor for Y2 certification is low in capacitance capacity, relatively low in precision, and relatively low in mechanical strength. The capacitor can be used as an Y2 safety certification capacitor. The capacitor is advantaged by low high-frequency loss, good current resistance capability, low loss, high precision capacity, small volume, high mechanical strength, high cost performance, and is safe and environmentally friendly. The capacitor can be used in occasions of high-voltage, high-frequency, and large current.
Description
Technical field
The present invention relates to capacitor technology field, be specifically related to film capacitor and substitute Y2 Safety Approval capacitor technology.
Background technology
Tradition commercially uses the safety capacitor of Y2 certification to be generally ceramic condenser.Ceramic capacitor is that barium titanate titanium monoxide is squeezed into pipe, disk or disk as medium, and to be plated on pottery by silver by burning infiltration method and to make as electrode.
Electric property is stablized, and does not substantially change with the change of temperature, voltage, time.Belong to overstable, low-loss capacitor dielectric material.Be usually used in the occasion to stability, high frequency that reliability requirement is higher, hyperfrequency, very high frequency(VHF).Typical effect can eliminate High-frequency Interference.
Dielectric material due to capacitor is pottery, so heat resistance is good, is not easy old; The corrosion of energy acid and alkali-resistance and salt, corrosion resistance is good; Low price, abundant raw materials, suitable production in enormous quantities.
But little owing to putting constant due to Jie of material, specific volume is little, volume is large, and medium is fired by ceramic barium titanate titanium monoxide, is difficult to do the larger sheet stock of area.The effective area of electrode is limited.Jumbo product cannot be done.Because electrode to be plated on pottery by silver by burning infiltration method to make as electrode, in sintering procedure, electrode area can change, and the deviation of capacity is larger.The more difficult production of the high-precision product of capacity.
The ceramic capacitor capacity doing Y2 certification is little, and precision is lower, and mechanical strength is lower.
Summary of the invention
The invention provides one film capacitor as Y2 Safety Approval capacitor technology, the ceramic condenser capacity that the invention solves existing solution Y2 certification is little, and precision is lower, the problem that mechanical strength is lower.
For solving the problem, the present invention adopts following technical scheme: with film capacitor as Y2 Safety Approval capacitor technology, comprise the capacitor that two lead-in wires, capacitor body and bodies are formed, capacitor body adopt the coat of metal makes electrode, polypropylene film makes medium, welding lead on the electrode of capacitor body and boxlike encapsulation form capacitor.
Capacitor of the present invention can as Y2 Safety Approval capacitor.It is little that the present invention has high-frequency loss, and withstanding current capability is strong, loss is little, safety and environmental protection, capacity high accuracy, volume are little, resistance to mechanical intensity is done, cost performance advantages of higher.The present invention can apply under the occasion of high pressure, high-frequency heavy-current.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram of capacitor body.
Symbol description in figure: 1, medium; 2, electrode; W, capacitor body are wide; H, capacitor body height; T, capacitor body thickness; P, lead spacing from; D, diameter wire; A, intermediately remained border; B, double-edge.
Embodiment
By best embodiment, the present invention is described in detail below
.
As Figure 1-3, with film capacitor as Y2 Safety Approval capacitor technology, comprise the capacitor that two lead-in wires, capacitor body and bodies are formed, capacitor body adopt the coat of metal makes electrode, polypropylene film makes medium, welding lead on the electrode of capacitor body and boxlike encapsulation form capacitor.
Two layer medium be arranged in parallel, the electrode having the coat of metal to be formed below last layer medium, and the double-edge amount between this electrode both sides and top dielectric edge is 0.5-1 millimeter; Have the electrode that two strip metal coating are formed below layer dielectric, the intermediately remained border amount between two strip electrodes is 1.5-2.5 millimeter.
Namely metallized film capacitor is replace metal forming as electrode in the surperficial evaporation layer of metal film of polyester film, because the thickness of layer of metallized film is much smaller than the thickness of metal forming, therefore after winding, volume is also much little than type metal foil type electric capacity volume.The great advantage of metalized film electric capacity is " self-healing " characteristic.If so-called self-healing feature is exactly, thin film dielectrics is owing to putting existing defects at certain and occur puncture short under overvoltage effect, and the metal layer of breakdown point can be formed in instant melting evaporation under arcing one very little of metal area, make two of electric capacity pole pieces mutually insulated and still working on again, therefore greatly improve the reliability of capacitor work.
String high temperature capacitors in metallized film of the present invention, this kind of capacitor high-frequency loss is little, and self heats up little, and specific volume is comparatively large, temperature capacity is strong, and dielectric behavior is stablized, and also must have stronger moisture protection and resisting temperature impact capacity.Can normally work under 100 DEG C of DEG C of operational environments for a long time again.This kind capacitor volume is little, capacity high accuracy, volume are little, resistance to mechanical intensity is done, cost performance is high, also can apply under the occasion of high pressure, high-frequency heavy-current.
Capacitor good reliability of the present invention, volume is little, and internal temperature rise is little, and high frequency characteristics is good, and loss is little, and insulation resistance is high, high temperature resistant, high frequency, can bear heavy current impact.Illumination hot environment can be met use, miniaturized, highly reliable, long-life, high-breakdown-voltage capacitor requirement.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (2)
1. use film capacitor as Y2 Safety Approval capacitor technology, it is characterized in that, comprise the capacitor that two lead-in wires, capacitor body and bodies are formed, it is characterized in that: capacitor body adopt the coat of metal makes electrode, polypropylene film makes medium, welding lead on the electrode of capacitor body and boxlike encapsulation form capacitor.
2. use film capacitor as Y2 Safety Approval capacitor technology as claimed in claim 1, it is characterized in that, two layer medium be arranged in parallel, the electrode having the coat of metal to be formed below last layer medium, and the double-edge amount between this electrode both sides and top dielectric edge is 0.5-1 millimeter; Have the electrode that two strip metal coating are formed below layer dielectric, the intermediately remained border amount between two strip electrodes is 1.5-2.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453484.0A CN104517731A (en) | 2013-09-29 | 2013-09-29 | Using thin film capacitor as Y2 safety certification capacitor technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453484.0A CN104517731A (en) | 2013-09-29 | 2013-09-29 | Using thin film capacitor as Y2 safety certification capacitor technology |
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| Publication Number | Publication Date |
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| CN104517731A true CN104517731A (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310453484.0A Pending CN104517731A (en) | 2013-09-29 | 2013-09-29 | Using thin film capacitor as Y2 safety certification capacitor technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045939A (en) * | 2017-01-20 | 2017-08-15 | 维沃移动通信有限公司 | A kind of ceramic Y capacitance of safety and electronic equipment |
| CN108878146A (en) * | 2018-07-03 | 2018-11-23 | 广东捷威电子有限公司 | A kind of metallized film box type capacitor of anti-interference, low ESR |
| CN113643896A (en) * | 2021-09-10 | 2021-11-12 | 宁波海融电器有限公司 | Safety film of internal series capacitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201256079Y (en) * | 2008-09-05 | 2009-06-10 | 四川中星电子有限责任公司 | Micro high voltage metalized thin-film capacitor |
| CN102938318A (en) * | 2011-08-15 | 2013-02-20 | 兴化市金盛电子有限公司 | Metallized polypropylene film capacitor |
-
2013
- 2013-09-29 CN CN201310453484.0A patent/CN104517731A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201256079Y (en) * | 2008-09-05 | 2009-06-10 | 四川中星电子有限责任公司 | Micro high voltage metalized thin-film capacitor |
| CN102938318A (en) * | 2011-08-15 | 2013-02-20 | 兴化市金盛电子有限公司 | Metallized polypropylene film capacitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045939A (en) * | 2017-01-20 | 2017-08-15 | 维沃移动通信有限公司 | A kind of ceramic Y capacitance of safety and electronic equipment |
| CN108878146A (en) * | 2018-07-03 | 2018-11-23 | 广东捷威电子有限公司 | A kind of metallized film box type capacitor of anti-interference, low ESR |
| CN113643896A (en) * | 2021-09-10 | 2021-11-12 | 宁波海融电器有限公司 | Safety film of internal series capacitor |
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Application publication date: 20150415 |
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| RJ01 | Rejection of invention patent application after publication |