MnZn ferrite material and magnetic core for energy-saving lamp and electronic ballast

An electronic ballast, soft ferrite technology, applied in the direction of inorganic material magnetism, inductor/transformer/magnet manufacturing, circuit, etc., can solve the problems of high saturation magnetic flux density, increased material cost, and copper consumption. Achieve the effect of low magnetic flux density, low production cost, and favorable mass production

Inactive Publication Date: 2008-05-21
广东肇庆微硕电子有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But these two types of lighting have their disadvantages: incandescent lamps mainly rely on heating tungsten filaments to emit light, 90% of the electric energy is used to generate unnecessary heat, and only 10% of the energy is converted into the required light energy, and the energy consumption per unit luminous flux is high. ; For fluorescent lamps with inductive ballasts, inductive ballasts consume a lot of copper, are bulky and heavy, and produce audible noise. Nearly 1/4 of the electric energy is consumed by inductive ballasts. The luminous efficiency of electric energy is low
The invention obtains a lower power loss of 260KW/m 3 (100°C, 100kHz, 200mT) and a higher saturation magnetic flux density of 425mT (100°C), this invention needs to add nano-scale ultrafine oxides as additives, which will increase the cost of materials to a certain

Method used

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  • MnZn ferrite material and magnetic core for energy-saving lamp and electronic ballast
  • MnZn ferrite material and magnetic core for energy-saving lamp and electronic ballast
  • MnZn ferrite material and magnetic core for energy-saving lamp and electronic ballast

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Experimental program
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Effect test

Embodiment 1

[0041] According to the formula Fe 2 o 3 : MnO: ZnO=51.2: 39.5: 9.3mol%, weigh three kinds of raw materials and put them into the stirring tank, and add 10wt% dispersant and 45wt% deionized water, stir and mix for 30 minutes, pump into the ball mill, add 10 wt% of the PVA solution with a concentration of 9% by weight of the ingredients was ground for 3 hours and then spray-dried. The dried red powder is pre-fired at a temperature of 700-1000° C. for 1 hour to obtain a pre-fired material. Weigh the calcined material and put it into the ball mill, add 100ppm, 500ppm, 600ppm, 2000ppm of SiO 2 , CaCO 3 , V 2 o 5 、TiO 2 Auxiliary small materials were added, and 10 wt% of a PVA solution with a concentration of 9% by weight of ingredients was added, ball milled for 5 hours, and spray granulated to obtain granules. Use a press to press the granular material into an annular green body with an outer diameter of 29.6 mm, an inner diameter of 17.8 mm, and a thickness of 8.9 mm. Th...

Embodiment 2

[0045] According to the formula Fe 2 o 3 : MnO: ZnO=51.0: 39.6: 9.4mol%, weigh three kinds of raw materials and put them into the stirring tank, and add 10wt% dispersant and 45wt% deionized water, stir and mix for 30 minutes, pump into the ball mill, add The concentration of 10wt% batching weight is 9% PVA solution, after grinding for 3 hours, it is spray-dried. The dried red powder is pre-fired at a temperature of 700-1000° C. for 1.5 hours to obtain a pre-fired material. Weigh the calcined material and put it into the ball mill, add 100ppm, 600ppm, 3000ppm, 800ppm of SiO 2 , CaCO 3 , SnO 2 , Nb 2 o 5 Auxiliary small materials were added, and 10 wt% of a PVA solution with a concentration of 9% by weight of ingredients was added, ball milled for 5 hours, and spray granulated to obtain granules. The pellets were pressed into a circular green body with an outer diameter of 29.6 mm, an inner diameter of 17.8 mm and a thickness of 8.9 mm with a press. The ring-shaped green...

Embodiment 3

[0048] According to the formula Fe 2 o 3 : MnO: ZnO=52.5: 38.6: 8.9mol%, weigh three kinds of raw materials and put them into the stirring tank, add 10wt% dispersant and 45wt% deionized water, stir and mix for 30 minutes, pump them into the ball mill, add The concentration of 10wt% batching weight is 9% PVA solution, after grinding for 3 hours, it is spray-dried. The dried red powder is pre-fired at a temperature of 700-1000° C. for 1.5 hours to obtain a pre-fired material. Weigh the calcined material and put it into the ball mill, add 80ppm, 600ppm, 3000ppm of SiO respectively according to the weight ratio 2 , CaCO 3 , CoO auxiliary small material, and add 10wt% batching weight concentration of 9% PVA solution, ball mill for 5 hours, spray granulation to obtain granular material. The pellets were pressed into a circular green body with an outer diameter of 29.6 mm, an inner diameter of 17.8 mm and a thickness of 8.9 mm with a press. The ring-shaped green body was kept an...

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Abstract

The invention relates to a MnZn soft ferrite material and magnetic core used for an integrated energy-saving lamp and an electronic ballast; wherein the soft ferrite material comprises the Fe2O3 of 49mol% to 53 mol% and the MnO of 34mol% to 40mol%, and the rest ZnO. A first accessory component of CaCO3, one or both of the second accessory components of SiO2 and WO3, one but not only limited to one of the third accessory components of SnO2, TiO2, Nb2O5, V2O5, CoO are added to the principal component. The invention has the advantages that the MnZn soft ferrite magnetic core can be used for, but not only limited to the integrated energy-saving lamp and the electronic ballast field.

Description

technical field [0001] The invention relates to the technical field of electronic materials, in particular to ferrite magnetic materials used in energy-saving lamps, electronic ballasts and related fields. Background technique [0002] In daily lighting, incandescent lamps and fluorescent lamps with magnetic ballasts are often used. But these two types of lighting have their disadvantages: incandescent lamps mainly rely on heating tungsten filaments to emit light, 90% of the electric energy is used to generate unnecessary heat, and only 10% of the energy is converted into the required light energy, and the energy consumption per unit luminous flux is high. ; For fluorescent lamps with inductive ballasts, inductive ballasts consume a lot of copper, are bulky and heavy, and produce audible noise. Nearly 1 / 4 of the electric energy is consumed by inductive ballasts. The luminous efficiency of electric energy is low. [0003] Based on the above shortcomings of traditional light...

Claims

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Application Information

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IPC IPC(8): H01F1/34H01F41/02C04B35/26C04B35/38
Inventor 王京平胡春元王宏蒋胜勇窦海之赖永学周锋刘关生黄华清
Owner 广东肇庆微硕电子有限公司
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