CN104916439A - High temperature resistance miniature high-voltage capacitor - Google Patents
High temperature resistance miniature high-voltage capacitor Download PDFInfo
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- CN104916439A CN104916439A CN201510237179.7A CN201510237179A CN104916439A CN 104916439 A CN104916439 A CN 104916439A CN 201510237179 A CN201510237179 A CN 201510237179A CN 104916439 A CN104916439 A CN 104916439A
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- film
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- aluminium foil
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- voltage capacitor
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Abstract
The invention discloses a high temperature resistance miniature high-voltage capacitor which belongs to the technical field of semiconductor devices. The technical problems of small power and short service life of the existing ordinary small capacitor are solved. The high temperature resistance miniature high-voltage capacitor provided by the invention comprises a capacitor core body. The capacitor core body comprises a metallized film layer, an aluminum foil layer and a film dielectric layer. The metallized film comprises a base film and a metal electrode plate. The metal electrode plate is a metal coating which is evaporated on the base film. Edges without metal coating are respectively arranged on both ends of the base film. The metalized film layer, the aluminum foil layer and the film dielectric layer are successively superimposed. The aluminum foil layer comprises two aluminum foils which are straightly arranged. An insulation liner film is arranged between two aluminum foils. The resistivity of the liner film is greater than the resistivity of the film dielectric layer and the base film.
Description
Technical field
The present invention relates to capacitor.
Background technology
Because LED adapts to the needs of Vehicles Collected from Market, volume is miniaturized and lightweight gradually, and work under high-temperature high-frequency condition for a long time, as rectifying and wave-filtering capacitor on LED, it is one of key auxiliary component, it is little to there is power in this existing common compact capacitor, and the defects such as useful life is short, are difficult to the supporting demand meeting LED miniaturization.
Summary of the invention
The invention provides high-temp-resistant micro high-voltage capacitor, solve existing common compact capacitor power little, the technical problem that useful life is short.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
High-temp-resistant micro high-voltage capacitor, comprise capacitor core body, described capacitor core body comprises metallized film layers, aluminium foil layer and thin film dielectric layer, described metallized film comprises substrate film and metal polar plate, described metal polar plate is that the coat of metal on substrate film is steamed in plating, the two ends of described substrate film are respectively equipped with stays limit without the coat of metal, metallized film layers, aluminium foil layer and thin film dielectric layer superpose successively, described aluminium foil layer comprises the aluminium foil that two panels is yi word pattern arrangement, the gasket film of insulation is provided with between two panels aluminium foil, the resistivity of described gasket film is greater than the resistivity of thin film dielectric layer and substrate film.
As preferred scheme, described gasket film is glass fiber membrane.
As preferred scheme, the described coat of metal is zinc coat.
As preferred scheme, described thin film dielectric layer and substrate film are polypropylene film.
Beneficial effect of the present invention is:
The present invention adopts poly-third film of high temperature as medium, aluminium foil is adopted to make electrode, internal structure uses the form of series connection to make, with metallization double-edge polypropylene film as public pole plate, small product size is significantly reduced, the pin of capacitor is apart from being reduced to below 7.5mm by original more than 10mm, under the prerequisite reducing capacitor volume, keep larger power, the supporting demand of LED miniaturization can be met, gasket film between electrode two aluminium foil, resistivity due to gasket film is greater than the resistivity of thin film dielectric layer and substrate film, capacitor can not be punctured under the high frequency heavy current impact in moment in short circuit, improve the useful life of capacitor.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
Fig. 1 is the structural representation of high-temp-resistant micro high-voltage capacitor of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, high-temp-resistant micro high-voltage capacitor, comprise capacitor core body, capacitor core body comprises metallized film layers 1, aluminium foil layer 2 and thin film dielectric layer 3, metallized film 1 comprises substrate film 11 and metal polar plate 12, metal polar plate 12 is that the coat of metal on substrate film is steamed in plating, the coat of metal is zinc coat, the two ends of substrate film 11 are respectively equipped with stays limit without the coat of metal, metallized film layers 1, aluminium foil layer 2 and thin film dielectric layer 3 superpose successively, aluminium foil layer 2 comprises the aluminium foil that two panels is yi word pattern arrangement, the gasket film 4 of insulation is provided with between two panels aluminium foil, thin film dielectric layer 3 and substrate film 11 are polypropylene film, gasket film 4 is glass fiber membrane, the resistivity of gasket film 4 is greater than the resistivity of thin film dielectric layer 3 and substrate film 11, under the high frequency heavy current impact of moment, electric current can not pass through two panels aluminium foil gasket film 4, therefore, can prevent capacitor short-circuit from puncturing, improve the useful life of capacitor.
The present invention adopts poly-third film of high temperature as medium, aluminium foil is adopted to make electrode, internal structure uses the form of series connection to make, with metallization double-edge polypropylene film as public pole plate, small product size is significantly reduced, add the self-healing ability of this capacitor, the pin of capacitor, apart from being reduced to below 7.5mm by original more than 10mm, can meet the supporting demand of LED miniaturization.
The serviceability temperature scope of high-temp-resistant micro high-voltage capacitor of the present invention can reach :-55 DEG C ~+115 DEG C, and proof voltage brings up to 2.5 times of rated voltage, and high-frequency loss is little, and internal temperature rise is low, and the scope of application of this capacitor is increased.
Just preferred embodiment of the present invention is described above, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all belongs to the scope that claims of the present invention define.
Claims (4)
1. high-temp-resistant micro high-voltage capacitor, comprise capacitor core body, described capacitor core body comprises metallized film layers, aluminium foil layer and thin film dielectric layer, described metallized film comprises substrate film and metal polar plate, described metal polar plate is that the coat of metal on substrate film is steamed in plating, it is characterized in that: the two ends of described substrate film are respectively equipped with stays limit without the coat of metal, metallized film layers, aluminium foil layer and thin film dielectric layer superpose successively, described aluminium foil layer comprises the aluminium foil that two panels is yi word pattern arrangement, the gasket film of insulation is provided with between two panels aluminium foil, the resistivity of described gasket film is greater than the resistivity of thin film dielectric layer and substrate film.
2. high-temp-resistant micro high-voltage capacitor according to claim 1, is characterized in that: described gasket film is glass fiber membrane.
3. high-temp-resistant micro high-voltage capacitor according to claim 2, is characterized in that: the described coat of metal is zinc coat.
4. high-temp-resistant micro high-voltage capacitor according to claim 1, is characterized in that: described thin film dielectric layer and substrate film are polypropylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237179.7A CN104916439A (en) | 2015-05-10 | 2015-05-10 | High temperature resistance miniature high-voltage capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237179.7A CN104916439A (en) | 2015-05-10 | 2015-05-10 | High temperature resistance miniature high-voltage capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104916439A true CN104916439A (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237179.7A Pending CN104916439A (en) | 2015-05-10 | 2015-05-10 | High temperature resistance miniature high-voltage capacitor |
Country Status (1)
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| CN (1) | CN104916439A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655128A (en) * | 2016-04-11 | 2016-06-08 | 郑州航空工业管理学院 | Ultrathin and high-temperature-resistant metallized polypropylene film capacitor |
| CN106128760A (en) * | 2016-08-11 | 2016-11-16 | 苏州柯创电子材料有限公司 | Metallized film capacitor based on PET |
| CN106128759A (en) * | 2016-08-11 | 2016-11-16 | 苏州柯创电子材料有限公司 | The manufacture method of metallized film capacitor |
| CN106158374A (en) * | 2016-08-11 | 2016-11-23 | 苏州柯创电子材料有限公司 | metallized film capacitor |
| CN106252075A (en) * | 2016-08-11 | 2016-12-21 | 苏州柯创电子材料有限公司 | The manufacturing process of metallized film capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890192A (en) * | 1987-04-09 | 1989-12-26 | Microelectronics And Computer Technology Corporation | Thin film capacitor |
| CN1208940A (en) * | 1997-04-25 | 1999-02-24 | 东丽株式会社 | Metallized film prodn. method thereof capacitor using it |
| CN201549379U (en) * | 2009-09-30 | 2010-08-11 | 长兴华强电子有限公司 | Capacitor for energy-saving ballast |
| CN201570380U (en) * | 2009-09-30 | 2010-09-01 | 长兴华强电子有限公司 | Capacitor used for ballast of energy-saving lamp |
-
2015
- 2015-05-10 CN CN201510237179.7A patent/CN104916439A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890192A (en) * | 1987-04-09 | 1989-12-26 | Microelectronics And Computer Technology Corporation | Thin film capacitor |
| CN1208940A (en) * | 1997-04-25 | 1999-02-24 | 东丽株式会社 | Metallized film prodn. method thereof capacitor using it |
| CN201549379U (en) * | 2009-09-30 | 2010-08-11 | 长兴华强电子有限公司 | Capacitor for energy-saving ballast |
| CN201570380U (en) * | 2009-09-30 | 2010-09-01 | 长兴华强电子有限公司 | Capacitor used for ballast of energy-saving lamp |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655128A (en) * | 2016-04-11 | 2016-06-08 | 郑州航空工业管理学院 | Ultrathin and high-temperature-resistant metallized polypropylene film capacitor |
| CN105655128B (en) * | 2016-04-11 | 2018-08-21 | 郑州航空工业管理学院 | Ultra-thin high-temperature resistant metal polypropylene screen capacitor |
| CN106128760A (en) * | 2016-08-11 | 2016-11-16 | 苏州柯创电子材料有限公司 | Metallized film capacitor based on PET |
| CN106128759A (en) * | 2016-08-11 | 2016-11-16 | 苏州柯创电子材料有限公司 | The manufacture method of metallized film capacitor |
| CN106158374A (en) * | 2016-08-11 | 2016-11-23 | 苏州柯创电子材料有限公司 | metallized film capacitor |
| CN106252075A (en) * | 2016-08-11 | 2016-12-21 | 苏州柯创电子材料有限公司 | The manufacturing process of metallized film capacitor |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |