本文選題：充電接口 + 接觸對��； 參考：《電子科技大學》2014年碩士論文

【摘要】：電動汽車行業(yè)隨著國家的推動,這個新興的行業(yè)已經進入了蓬勃發(fā)展的春天,也帶動了相關配套產業(yè)的發(fā)展,其中在電池、充電樁等技術上已經有了很大的進展和突破,迫切需要充電接口技術能適應電動汽車行業(yè)發(fā)展的速度和方向。一直以來國內電動汽車充電接口一直以來發(fā)展緩慢,市場上充電接口種類繁多、接口不統(tǒng)一、質量不穩(wěn)定,非常不利于推動整個電動汽車行業(yè)的發(fā)展。國際上歐洲各國和日本在電動汽車充電接口的發(fā)展比我們國內要早,但是近年來也沒有在技術上進行突破。其中歐洲執(zhí)行國際電工委員會(IEC)標準,美國執(zhí)行美國汽車工程師協會(SAE)標準,日本執(zhí)行日本電動汽車協會(JEVS)標準;國內接口執(zhí)行2011年發(fā)布實施的GB/T20234-2011《電動汽車傳導充電用連接裝置》標準。GB/T20234標準是根據國內具體情況依據、及的相關標準制定的,能達到和國際和國內的充電接口有統(tǒng)一的互換標準。為了滿足市場的需求和適應發(fā)展的需要,開展電動汽車充電接口的關鍵技術研究和突破勢在必行。目前國際及國內的標準體系中均規(guī)定充電接口的機械壽命為空載10000次,接觸電阻0.5mΩ、溫升不超過50K。根據充電接口的使用頻率測算預計使用壽命在5年以下,但是汽車的使用時間卻是這個的兩倍甚至以上。為了提高汽車的安全性能和核心部件的使用期限,本課題以電動汽車傳導式充電接口為研究對象,對充電接口的關鍵技術進行研究,將充電接口的機械壽命提高到20000次,使用壽命提高到10年左右,達到汽車的使用壽命并減少了報廢接口造成的環(huán)境污染及資源浪費;將接觸電阻降到0.3mΩ以內、溫升下降到30K左右,可以使充電接口更安全并適應更高環(huán)境溫度使用的需要。充電接口的接觸電阻、溫升、機械壽命這幾項關鍵技術主要體現在接觸對上。本課題針對接觸對進行系統(tǒng)的、深入的研究和分析,包括接觸件的結構分析、電及熱應力傳導分析、材料分析、表面工程技術、摩擦及磨損、主要失效模式分析、可靠性分析等工作,研究的同時提出獨創(chuàng)的的雙曲面籠式插孔,該插孔結合了常用接觸件的優(yōu)點,并進行了結構創(chuàng)新。從雙曲面籠式插孔結構、接觸電阻、插拔力、溫升、機械壽命等方面進行了深入研究和仿真計算,然后投入試制生產,最后將樣件進行一系列的試驗測試,與理論值及要求值進行對比分析。從理論和實踐都證明本次研究達到了預期的目標。通過本次研究,將雙曲面籠式插孔應用在充電接口上,在標準化的基礎上,提高了充電接口的安全性能,將機械壽命提高了兩倍,適應了充電接口的發(fā)展方向,推動了國內充電接口的發(fā)展,使此類充電接口達到行業(yè)領先水平。
[Abstract]:With the promotion of the country, this emerging industry has entered the spring of vigorous development, and has also led to the development of related supporting industries. Among them, there has been great progress and breakthrough in technology such as batteries, charging piles, etc.There is an urgent need for charging interface technology to adapt to the speed and direction of the development of the electric vehicle industry.The domestic electric vehicle charging interface has been developing slowly all the time. There are many kinds of charging interfaces in the market, the interface is not uniform and the quality is unstable, which is very unfavorable to the development of the whole electric vehicle industry.The development of electric vehicle charging interface in Europe and Japan is earlier than that in our country, but in recent years there has been no technical breakthrough.Among them, Europe implements the IEC standard, the United States implements the American Association of Automotive Engineers (SAE) standard, and Japan implements the JEVS standard of Japan Electric vehicle Association.The domestic interface implements the GB/T20234-2011 standard. GB / T20234, issued in 2011, is based on the specific situation in China and related standards.Can meet the international and domestic charging interface has a unified exchange standard.In order to meet the needs of market and development, it is imperative to research and break through the key technology of electric vehicle charging interface.At present, it is stipulated in international and domestic standard systems that the mechanical life of charging interface is 10000 times without load, contact resistance is 0.5 m 惟, temperature rise is not more than 50 K.The estimated service life is less than five years based on the frequency of the charging interface, but the car is twice as long as this one.In order to improve the safety performance of the vehicle and the service life of the core components, this paper takes the conductive charging interface of the electric vehicle as the research object, studies the key technology of the charging interface, and increases the mechanical life of the charging interface to 20000 times.When the service life is increased to about 10 years, the service life of the automobile is reached and the environmental pollution and resource waste caused by the scrap interface are reduced, the contact resistance is reduced to less than 0.3 m 惟, and the temperature rise is reduced to about 30 K.It can make the charging interface safer and adapt to the need of higher ambient temperature.The contact resistance, temperature rise and mechanical life of the charging interface are mainly reflected in the contact pair.This subject is a systematic and in-depth study and analysis of contact pairs, including contact structure analysis, electrical and thermal stress conduction analysis, material analysis, surface engineering technology, friction and wear, main failure mode analysis,At the same time, the original hyperboloid cage Jack is put forward, which combines the advantages of common contacts, and the structure is innovated.The hyperboloid cage hole structure, contact resistance, insertion force, temperature rise, mechanical life and so on are studied and simulated, then put into trial production, and a series of tests are carried out.Compared with the theoretical value and the required value.Both theory and practice have proved that this study has achieved the expected goal.Through this study, the hyperboloid cage Jack is applied to the charging interface. On the basis of standardization, the safety performance of the charging interface is improved, the mechanical life is increased twice, and the development direction of the charging interface is adapted.Promote the development of domestic charging interface, so that this kind of charging interface to the industry leading level.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U491.8;U469.72

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相關期刊論文 前1條

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本文編號：1755863