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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: 2011-08-31
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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Embodiment 1

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

[0024] The preparation method of the nickel-zinc ferrite material for the integrated high-frequency electrodeless lamp inductive coupler provided in this embodiment is as follows: ...

Embodiment 2

[0044] 1) Selection of raw materials: The present invention provides ultra-wide temperature, high stability and extremely low electromagnetic loss at high frequency and high current, and can be applied to the production of nickel-zinc ferrite materials for integrated high-frequency electrodeless lamp power couplers. Raw materials choose industrially pure Fe 2 o 3 , ZnO, NiO and Co 2 o 3 .

[0045] 2) Composition design and weighing: according to Fe 2 o 3 is 56mol%, ZnO is 15mol%, NiO is 28.999mol% and Co 2 o 3 It 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 of the total weight of raw materials, and the ball milling time is 2 hours.

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

Embodiment 3

[0057] 1) Selection of raw materials: The present invention provides ultra-wide temperature, high stability and extremely low electromagnetic loss at high frequency and high current, and can be applied to the production of nickel-zinc ferrite materials for integrated high-frequency electrodeless lamp power couplers. Raw materials choose industrially pure Fe 2 o 3 , ZnO, NiO and Co 2 o 3 .

[0058] 2) Composition design and weighing: according to Fe 2 o 3 is 48mol%, ZnO is 22mol%, NiO is 29.994mol% and Co 2 o 3 It 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 of the total weight of raw materials, and the ball milling time is 1 hour.

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

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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-purpose nickel-zinc ferrite material for an integrated high-frequency electrodeless lamp inductive coupler and a preparation method thereof. Background technique [0002] High Frequency Electronic Discharge Lamp (High Frequency Electronic Discharge Lamp) is a high-tech new light source that integrates the latest electronic power-saving technology and electric light source technology. It does not use a filament, but uses a magnetic field to stimulate gas discharge and light emission. It is highly efficient, energy-saving, and environmentally friendly. , long life and many other advantages. The high-frequency electrodeless lamp is composed of three parts: the excitation power supply, the power coupler and the bulb. The excitation power supply generates a high-frequency current above 2MHz, which is sent to the power coupler through the feeder. W...

Claims

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Application Information

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