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Special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and preparation method

An inductive coupler and nickel-zinc ferrite technology, which is applied in the field of nickel-zinc ferrite materials and preparation for the inductive coupler of an integrated high-frequency electrodeless lamp, can solve the problem of easy generation of electromagnetic radiation, difficulties in product miniaturization, and product heat generation. Concentration and other problems, to achieve the effect of improving electromagnetic loss characteristics, wide pre-burning and sintering temperature range, and good product consistency

Inactive Publication Date: 2013-07-24
JIAXING LONG KINGS LIGHTING SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, domestic electrodeless lamp technology still generally stays at the level of Philips in the late 1990s. Due to several key issues that have not been resolved, the products are still mainly split: 1. The magnetic core of the inductive coupler currently used is The power consumption is too large, resulting in serious heat generation of the product; 2. After the integration, the heat generation of the product is relatively concentrated, resulting in the working temperature of the innermost inductive coupler usually around 200°C. In order to maintain stable operation, the magnetic inductance coupler is required. The core can have excellent temperature stability in an ultra-wide temperature range of -60°C to 240°C
The technical limitations mentioned above have caused problems such as difficulty in product miniaturization, high cost, and easy generation of electromagnetic radiation. For example, the market price of a 135W electrodeless lamp exceeds 500 yuan

Method used

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  • Special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and preparation method
  • Special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and preparation method
  • Special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and preparation method

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Experimental program
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Effect test

Embodiment 1

[0023] The nickel-zinc ferrite material for the integrated high-frequency electrodeless lamp inductive coupler provided in this embodiment has a main phase of a spinel structure and consists of Fe 2 O 3 , ZnO, NiO and Co 2 O 3 , its composition content is calculated as oxide: Fe 2 O 3 48mol%~56mol%; ZnO is 15mol%~22mol%; NiO is 20mol%~33mol%; Co 2 O 3 0.001 mol% to 0.004 mol%, it also contains 0.05wt% to 0.15wt% of the total weight as a sintering flux, the nano-V that has been surface-modified by a silane coupling agent 2 O 5 ; Nano-MnCO modified with silane coupling agent 3 and CaCO 3 powder as a modification additive, in which nano-MnCO 3 The addition amount is 0.2wt% to 0.5wt% of the total weight; nano-CaCO 3 The addition amount is 0.02wt% to 0.05wt% of the total weight.

[0024] The preparation method of the special nickel-zinc ferrite material for the integrated high-frequency electrodeless lamp inductive coupler provided by this embodiment, the steps are as fo...

Embodiment 2

[0044] 1) Selection of raw materials: the invention provides ultra-wide temperature, high stability and extremely low electromagnetic loss under high frequency and high current, which can be applied to the preparation of nickel-zinc ferrite materials for integrated high-frequency induction lamp power couplers. Raw material selection of industrial pure Fe 2 O 3 , ZnO, NiO and Co 2 O 3 .

[0045] 2) Component design and weighing: according to Fe 2 O 3 56 mol%, ZnO 15 mol%, NiO 28.999 mol% and Co 2 O 3 is 0.001 mol%.

[0046] 3) Mixing of raw materials: put the weighed raw materials into a sand mill, add deionized water, the weight of deionized water is 1.2 times the total weight of the raw materials, and the ball milling time is 2 hours.

[0047] 4) Pre-sintering: Dry the raw materials that have been ball-milled once, and put them into an electric furnace for pre-sintering. The pre-sintering temperature is 1020°C, and the pre-sintering time is 3.5 hours. After pre-sinte...

Embodiment 3

[0057] 1) Selection of raw materials: the invention provides ultra-wide temperature, high stability and extremely low electromagnetic loss under high frequency and high current, which can be applied to the preparation of nickel-zinc ferrite materials for integrated high-frequency induction lamp power couplers. Raw material selection of industrial pure Fe 2 O 3 , ZnO, NiO and Co 2 O 3 .

[0058] 2) Component design and weighing: according to Fe 2 O 3 48 mol%, ZnO 22 mol%, NiO 29.994 mol% and Co 2 O 3 is 0.004 mol%.

[0059] 3) Mixing of raw materials: put the weighed raw materials into a sand mill, add deionized water, the weight of deionized water is 1.2 times the total weight of the raw materials, and the ball milling time is 1 hour.

[0060] 4) Pre-sintering: Dry the raw materials that have been ball-milled once, and put them into an electric furnace for pre-sintering. The pre-sintering temperature is 1180°C, and the pre-sintering time is 1.5 hours. After pre-sinter...

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Abstract

The invention discloses a special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and a preparation method. The principal phase of the nickel-zinc ferrite material is spinel structure comprising Fe2O3, ZnO, NiO and Co2O3, wherein the composing and content are calculated in oxides comprising: Fe2O3 48mol%-56mol%, ZnO 15mol%-22mol%, NiO 20mol%-33mol%, Co2O3 0.001mol%-0.004. The invention can prepare a novel nickel-zinc soft magnetic ferrite with ultra wide temperature, high stability and low electromagnetic loss in high frequency and high current by using suitable formula and appropriate technological parameter, and the nickel-zinc ferrite material can do normal work in high temperature. The invention is contribute to reduce the electromagnetic loss and heat of the high frequency electronic discharge lamp inductive coupler, so as to guarantee the normal and stable work and is good for miniaturizing of device, therefore the material has very wide market prospect in novel electrodeless discharge lamp lighting system.

Description

technical field [0001] The invention relates to a production technology of a nickel-zinc ferrite material, in particular to a special nickel-zinc ferrite material for an integrated high-frequency electrodeless lamp inductive coupler and a preparation method. Background technique [0002] High Frequency Electronic Discharge Lamp is a new high-tech light source that integrates the latest electronic power-saving technology and electric light source technology. , long life and many other advantages. The high-frequency induction lamp is composed of three parts: excitation power supply, power coupler and bulb. The excitation power supply generates a high-frequency current above 2MHz, which is sent to the power coupler through the feeder. When high frequency current passes through the power coupler, a high frequency electromagnetic field is generated. The changing magnetic field generates an electric field that changes perpendicular to the magnetic field, so that the electrons in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 顾晔华胡军
Owner JIAXING LONG KINGS LIGHTING SCI & TECH