本文選題：無線充電 + 隔磁片��； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：無線充電技術(shù)是一種非接觸式磁感應(yīng)或磁諧振技術(shù)。它由特斯拉磁感應(yīng)原理技術(shù)整合演變而來,不需要電路連接線,在一定距離范圍內(nèi)實(shí)現(xiàn)無線電能的傳輸。隨著智能電子產(chǎn)品的迅猛發(fā)展,無線充電技術(shù)目前的發(fā)展態(tài)勢相當(dāng)迅速,全球相繼有三大技術(shù)聯(lián)盟及組織成立,且越來越多的廠商開始加入這些無線充電的技術(shù)陣營,特別是無線充電聯(lián)盟(Wireless Power Consortium,簡稱WPC)利用磁感應(yīng)原理推出具體的5w范圍內(nèi)的無線充電技術(shù)標(biāo)準(zhǔn)Qi。該標(biāo)準(zhǔn)對系統(tǒng)的安全性和穩(wěn)定性提出了更明確的要求。軟磁隔磁材料能夠屏蔽近場磁干擾,并可提高無線充電效率被廣泛的應(yīng)用在無線充電系統(tǒng)中,本論文就是對這種軟磁屏蔽材料進(jìn)行研究。1.研究了磁粉心粉末粒度對柔性隔磁材料性能的影響。分析了粒徑尺寸的分布影響材料有效磁導(dǎo)率、功率損耗、品質(zhì)因數(shù)Q及材料的頻響特性的原因及變化規(guī)律。顆粒粉末越細(xì),磁粉心材料的磁導(dǎo)率越低、功率損耗降低、品質(zhì)因數(shù)增大及頻響特性更優(yōu),反之亦然。2.研究了顆粒粉末的磷化方式與絕緣包覆工藝對柔性隔磁材料的影響。提出了采用預(yù)熱配合熱開水工藝替代丙酮作為磷化稀釋劑,節(jié)約了成本,且改善了生產(chǎn)環(huán)境;研究了絕緣包覆劑的添加量對磁粉心材料的有效磁導(dǎo)率、功率損耗、品質(zhì)因數(shù)Q的影響。3.研究了流延工藝參數(shù)及添加劑對磁粉心薄膜材料的影響。通過添加合理的輔助溶劑來提供薄膜的質(zhì)量,并分析了影響流延薄膜厚度的主要因素。4.研究了熱處理工藝對材料制備工藝的影響。分析了熱處理溫度、保溫時間等工藝參數(shù)對磁粉心薄膜性能的影響。5.利用CST仿真軟件協(xié)同ADS軟件對無線充電的磁場環(huán)境進(jìn)行仿真模擬,分析柔性隔磁材料及其特性對手機(jī)無線充電磁場的影響規(guī)律。
[Abstract]:Wireless charging technology is a non-contact magnetic induction or magnetic resonance technology. It is evolved from the integration of Tesla magnetic induction principle technology and does not require circuit connection to realize wireless power transmission within a certain range of distance. With the rapid development of intelligent electronic products, wireless charging technology is developing rapidly. Three major technology alliances and organizations have been established in the world, and more manufacturers begin to join these wireless charging technology camps. In particular, Wireless Power Consortiums (WPC), a wireless charging alliance, uses the principle of magnetic induction to develop a specific wireless charging standard Qiw in the range of 5w. The safety and stability of the system are required more clearly by the standard. Soft magnetic barrier material can shield near field magnetic interference and can improve the efficiency of wireless charging is widely used in wireless charging system, this paper is to study this kind of soft magnetic shielding material. The effect of particle size of magnetic powder core on the properties of flexible magnetic insulation materials was studied. The influence of particle size distribution on the effective permeability, power loss, quality factor Q and the frequency response characteristics of the material were analyzed. The finer the particle powder, the lower the permeability, the lower the power loss, the higher the quality factor and the better the frequency response, and vice versa. The effects of phosphating mode and insulating coating process on flexible magnetic insulation materials were studied. In this paper, it is put forward that using preheating and hot boiling water process to replace acetone as phosphating diluent can save the cost and improve the production environment, and the effective permeability and power loss of the magnetic powder core material caused by the addition of insulating coating agent are studied. The effect of quality factor Q. The effects of casting process parameters and additives on magnetic powder core film materials were studied. The quality of the film was provided by adding reasonable auxiliary solvent, and the main factors affecting the thickness of the film were analyzed. The effect of heat treatment on the preparation of materials was studied. The effects of heat treatment temperature and heat preservation time on the properties of magnetic powder core films were analyzed. CST simulation software and ads software are used to simulate the magnetic field environment of wireless charging. The influence of flexible magnetic insulation material and its characteristics on the wireless charging magnetic field of mobile phone is analyzed.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM910.6;TM27

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本文編號：2043378