CN204596640U - High-temp-resistant micro high-voltage capacitor - Google Patents
High-temp-resistant micro high-voltage capacitor Download PDFInfo
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- CN204596640U CN204596640U CN201520297994.8U CN201520297994U CN204596640U CN 204596640 U CN204596640 U CN 204596640U CN 201520297994 U CN201520297994 U CN 201520297994U CN 204596640 U CN204596640 U CN 204596640U
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Abstract
The utility model discloses high-temp-resistant micro high-voltage capacitor, belong to technical field of semiconductor device, solve existing common compact capacitor power little, the technical problem that useful life is short, the utility model 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.
Description
Technical field
The utility model 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.
Utility model content
The utility model provides high-temp-resistant micro high-voltage capacitor, solves existing common compact capacitor power little, the technical problem that useful life is short.
For solving the problems of the technologies described above, the utility model 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.
The beneficial effects of the utility model are:
The utility model 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 utility model is described further:
Fig. 1 is the structural representation of the utility model high-temp-resistant micro high-voltage capacitor.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model 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 utility model 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 the utility model high-temp-resistant micro high-voltage capacitor 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.
Be described with regard to the utility model preferred embodiment above, but can not be interpreted as it is restriction to claim.The utility model is not only confined to above embodiment, its concrete structure allows to change, those skilled in the art can make various change and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all belong to the scope that the utility model claims 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 |
|---|---|---|---|
| CN201520297994.8U CN204596640U (en) | 2015-05-10 | 2015-05-10 | High-temp-resistant micro high-voltage capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297994.8U CN204596640U (en) | 2015-05-10 | 2015-05-10 | High-temp-resistant micro high-voltage capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596640U true CN204596640U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520297994.8U Expired - Fee Related CN204596640U (en) | 2015-05-10 | 2015-05-10 | High-temp-resistant micro high-voltage capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648912A (en) * | 2018-05-21 | 2018-10-12 | 江门市旭晨科技有限公司 | A kind of capacitor metallized film and its manufacturing process |
-
2015
- 2015-05-10 CN CN201520297994.8U patent/CN204596640U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648912A (en) * | 2018-05-21 | 2018-10-12 | 江门市旭晨科技有限公司 | A kind of capacitor metallized film and its manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 313119 Zhejiang city of Huzhou province Changxing County Huai Xin Jie, Changxin Huaqiang electronic Limited by Share Ltd Patentee after: CHANGXING HUAQIANG ELECTRONIC CO., LTD. Address before: 313119 Zhejiang city of Huzhou province Changxing County Huai Xin Jie, Changxin Huaqiang Electronic Co. Ltd. Patentee before: CHANGXING HUAQIANG ELECTRONICS CO., LTD. |
|
| 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: 20150826 Termination date: 20190510 |