Metalized polypropylene film capacitor for induction cooker

A polypropylene film and metallized film technology, used in the field of capacitors, can solve problems such as limited application and inability to meet requirements, and achieve the effects of strong self-healing, low contact resistance, and strong ability to withstand effective current and impact.

Active Publication Date: 2016-08-17
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the environmentally friendly transformer oil prepared by the invention has a flash point of about 215°C, which cannot meet the requirements of being a flame retardant oi

Method used

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  • Metalized polypropylene film capacitor for induction cooker
  • Metalized polypropylene film capacitor for induction cooker
  • Metalized polypropylene film capacitor for induction cooker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a metallized polypropylene film capacitor for an induction cooker includes an upper insulating cover 1, a lower insulating cover 2, a capacitor core 3, a gold spray layer 5, a conductive post 9 and a lead terminal 10, and the upper insulating cover 1 and the lower insulating cover The surface of the cover 2 is treated with sandblasting and oxidation protection, which can increase the safety performance and service life of the capacitor. The upper insulating cover 1 and the lower insulating cover 2 are fixedly connected through the explosion-proof plate 4, the combination of the lower insulating cover 2 and the explosion-proof plate 4 accommodates the capacitor core 3, and an impregnating agent is set in the gap between the lower insulating cover 2 and the explosion-proof plate 4 6. The impregnating agent 6 completely impregnates the capacitor core 3 . The inner surface of the lower insulation cover 2 is provided with a buffer layer 7, the thi...

Embodiment 2

[0045] A metallized polypropylene film capacitor for an electromagnetic cooker, the structure of which is roughly the same as that of Example 1, except that:

[0046] The impregnating agent 6 is made of the following raw materials in parts by weight: 31 parts of monobenzyltoluene, 21 parts of 1,1-diphenylethane, 21 parts of vegetable oil, 16 parts of glycerin, 16 parts of nanopowder, 0.35 parts of antioxidant, 0.6 part of silane coupling agent, 0.3 part of metal deactivator.

[0047] Among them, the vegetable oil is a mixture of rapeseed oil and camellia seed oil, and the weight ratio of rapeseed oil: camellia seed oil is 4.5:5.5; the nano powder is a mixture of aluminum oxide, magnesium oxide and zinc oxide, aluminum oxide, magnesium oxide and oxide The particle size of zinc is 50~80nm, the weight ratio of aluminum oxide: magnesium oxide: zinc oxide is 3:2:3; antioxidant is rosemary antioxidant; silane coupling agent KH560; metal deactivator is three azole cyclohexene.

[0...

Embodiment 3

[0054] A metallized polypropylene film capacitor for an electromagnetic cooker, the structure of which is roughly the same as that of Example 1, except that:

[0055] The impregnating agent 6 is made of the following raw materials in parts by weight: 34 parts of monobenzyltoluene, 23 parts of 1,1-diphenylethane, 23 parts of vegetable oil, 17 parts of glycerin, 17 parts of nanopowder, 0.4 parts of antioxidant, 0.65 parts of silane coupling agent.

[0056] Among them, the vegetable oil is a mixture of rapeseed oil and camellia seed oil, and the weight ratio of rapeseed oil: camellia seed oil is 5:5; the nano powder is a mixture of aluminum oxide, magnesium oxide and zinc oxide, aluminum oxide, magnesium oxide and oxide The particle size of zinc is 50-80nm, the weight ratio of aluminum oxide: magnesium oxide: zinc oxide is 3:2:3; the antioxidant is tea polyphenol; the silane coupling agent is KH570.

[0057] The preparation method of above-mentioned impregnating agent 6 comprise...

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Abstract

The invention discloses a metalized polypropylene film capacitor for an induction cooker. The metalized polypropylene film capacitor comprises an upper insulating cover, a lower insulating cover, a capacitor core, metal spraying layers, conducting posts and lead-out terminals, wherein the upper insulating cover is fixedly connected with the lower insulating cover through an explosion-proof board; an impregnant is arranged in a gap between the lower insulating cover and the explosion-proof board; a buffer layer is arranged on the inner surface of the lower insulating cover; an explosion-proof layer is arranged on the inner surface of the buffer layer; the capacitor core is formed by winding two superimposed metalized film layers; each metalized film layer comprises a polypropylene film; a metal aluminum layer is evaporated on each polypropylene film as an active region of an electrode in a high vacuum environment; a pure-zinc thickened region layer is evaporated on the edge of each active region in a thickened manner; wavy edges are arranged at the outer sides of each polypropylene film, the corresponding active region and the corresponding thickened region; the metal spraying layers are arranged at two ends of the capacitor core; and lead-out terminals are arranged on the upper insulating cover. The metalized polypropylene film capacitor is stable in performance, good in temperature tolerance, long in storage time, high in antioxidant capacity and small in high-frequency loss.

Description

technical field [0001] The invention relates to a capacitor, in particular to a metallized polypropylene film capacitor for an electromagnetic cooker. Background technique [0002] Capacitors are the main electronic components that constitute electronic circuits. Capacitors are widely used in power systems to compensate reactive power. The original capacitor structure is to fix the three-phase capacitor units together and seal them in the box. When electrical appliances are used for too long, the current of the capacitor will increase, the temperature will rise, and the material inside the capacitor will expand rapidly, causing the capacitor to explode. Therefore, it is necessary to design explosion-proof capacitors. [0003] With the development of science and technology, the requirements for the safety performance of electrical components in the industry are constantly improving. As a common electrical component, film capacitors play an important role in the explosion-proo...

Claims

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Application Information

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IPC IPC(8): H01G4/005H01G4/14H01G4/224H01G4/236H01G4/252H01G4/32H01G4/33H01G2/14
CPCH01G2/14H01G4/005H01G4/14H01G4/224H01G4/236H01G4/252H01G4/32H01G4/33
Inventor 禹建丽苗满香张国辉
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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