A metallized safety film

A metallized film, safe technology, used in fixed capacitor parts, fixed capacitor electrodes, wire wound capacitors, etc., can solve the problems of large capacitor capacity loss, shortened product life, large unit area, etc., and achieve small capacity loss. , long service life, small unit area effect

Pending Publication Date: 2019-01-18
DELIXI ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Chinese patent CN205264515U discloses a safe metallized film for capacitors, the metal layer is arranged on the upper surface of the dielectric layer, one end of the dielectric layer is provided with a margin, and one end of the metal layer is provided with a thickened layer; the middle of the metal layer is provided with longitudinal insulation The longitudinal insulating strip divides the metal layer into a fully metallized conductive layer and a partial metallized conductive layer; one end of the horizontal insulating strip is connected to the longitudinal insulating strip, and the other end extends to the boundary of the partial metallized conductive layer; T-shaped insulating blocks, horizontal fuses are set between the two adjacent T-shaped insulating blocks on the left and right, and longitudinal fuses are installed between the two adjacent T-shaped insula

Method used

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Examples

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Example Embodiment

[0023] Example 1

[0024] A metallized safety film, such as Figure 4-6 , Is formed by stacking and winding double-sided metalized film layers, refer to Figure 1-3 , The metalized film layer includes a base film and a fully metalized conductive layer 4 arranged on the base film. A margin area 5 is provided on one side of the base film, and a thickened area 1 is provided on the opposite side of the base film. The thickened area 1 and the fully metalized conductive layer 4 are spaced apart by the isolation area 2. The upper part of the fully metalized conductive layer 4 near the thickened area 1 is provided with a conductive mesh area 3, which is occupied by the conductive mesh area 3 Half of the fully metalized conductive layer 4. The conductive grid area 3 is provided with a plurality of cross-vertical fuses. The fuse divides the conductive grid area 3 into a plurality of square units. The fully metalized conductive layer 4 is obtained by evaporating metal aluminum or zinc on t...

Example Embodiment

[0025] Example 2

[0026] In this embodiment, the square resistance of the fully metalized conductive layer 4 is 100Ω / □, the square resistance of the vapor-deposited conductive mesh area 3 is 12Ω, and the thickened area 1 is obtained by vapor-depositing metal aluminum or zinc on the base film, and the square resistance is 6Ω, the rest are the same as in Example 1.

Example Embodiment

[0027] Example 3

[0028] In this embodiment, the square resistance of the fully metalized conductive layer 4 is 50Ω / □, the square resistance of the vapor-deposited conductive mesh area 3 is 9Ω, and the thickened area 1 is obtained by vapor-depositing metal aluminum or zinc on the base film, and the square resistance is 4Ω, the rest are the same as in Example 1.

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Abstract

The invention relates to a metallized safety film made by laminating and winding double-sided metallized film, the metallized thin film layer comprises a base film and a fully metallized conductive layer arranged on the base film, One side of the base film is provided with a reserved edge region, and the side opposite to the reserved edge region, of the base film is provided with a thickened region. The thickened region and the all-metallized conductive layer are spaced apart by an isolation region, and a conductive grid region is arranged on the upper part of the all-metallized conductive layer near the thickened region. Compared with the existing double-layer safety film winding, the utility rate of the base film is improved by 2.5%, the safety performance is improved, the high square resistance all-metallized conductive layer improves the self-healing property, the voltage resistance is high, the ripple resistance is strong, and the service life is long under the condition of the same safety performance.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a metallized safety film. Background technique [0002] Chinese patent CN205264515U discloses a safe metallized film for capacitors, the metal layer is arranged on the upper surface of the dielectric layer, one end of the dielectric layer is provided with a margin, and one end of the metal layer is provided with a thickened layer; the middle of the metal layer is provided with longitudinal insulation The longitudinal insulating strip divides the metal layer into a fully metallized conductive layer and a partial metallized conductive layer; one end of the transverse insulating strip is connected to the longitudinal insulating strip, and the other end extends to the boundary of the partial metallized conductive layer; the transverse insulating strip is connected to the T-shaped insulating blocks, horizontal fuses are provided between the left and right adjacent T-shaped insulati...

Claims

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Application Information

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IPC IPC(8): H01G4/015H01G4/005H01G4/32
CPCH01G4/015H01G4/005H01G4/32
Inventor 金鑫陶显升
Owner DELIXI ELECTRIC
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