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<p> <strong><a href="http://www.chenfeipower.com/product/product-0001,0015-1.shtml">高频å˜åŽ‹å™?/a></strong>在è¿è¡Œçš„过程ä¸æœ‰æ—¶ä¼šå‘出噪声,äº§ç”Ÿè¿™æ ·çš„åŽŸå› ä¹‹ä¸€å°±æ˜¯å†·å´å™¨ã€‚主è¦æ˜¯å› 为风扇会产生噪声，人耳对这ç§å®½å¸¦è°æ³¢å½“然比对é“心频率产生的è°æ³¢æ•æ„Ÿã€‚主导频率å–决于多ç§å› ç´ ï¼ŒåŒ…æ‹¬é£Žæ‰‡é€Ÿåº¦ï¼Œå¶ç‰‡æ•°å’Œå¶ç‰‡å¤–形。声功率级å–决于风扇的数é‡ä»¥åŠè½¬é€Ÿã€‚与高频å˜åŽ‹å™¨æœ¬ä½“噪声的机ç†ä¸€æ ·ï¼Œå†·å´è£…ç½®çš„å™ªå£°ä¹Ÿæ˜¯ç”±äºŽå®ƒä»¬çš„æŒ¯åŠ¨è€Œäº§ç”Ÿçš„ï¼Œå…¶æŒ¯åŠ¨çš„æ ¹æºåœ¨äºŽï¼š</p>
<p>　　1.冷å´é£Žæ‰‡å’Œæ²¹æ³µåœ¨è¿è¡Œæ—¶äº§ç”Ÿçš„振动;</p>
<p>　　2.高频å˜åŽ‹å™¨æœ¬ä½“的振动通过ç»ç¼˜æ²¹ã€ç®¡æŽ¥å¤´åŠå…¶è£…é…é›¶ä»¶ä¼ é€’ç»™å†·å´è£…置，使冷å´è£…ç½®çš„æŒ¯åŠ¨åŠ å‰§ï¼Œå™ªå£°åŠ å¤§ã€‚å¦å¤–，当é“å¿ƒåŠ çƒä»¥åŽï¼Œç”±äºŽè°æŒ¯é¢‘率和机械应力的å˜åŒ–，其噪声会éšæ¸©åº¦çš„å‡é«˜è€Œå¢žå¤§ã€‚而è¿è¡ŒçŽ°åœºçš„环境（如周围的墙å£ã€å»ºç‘物åŠå®‰è£…基础ç‰ï¼‰å¯¹å™ªå£°ä¹Ÿæœ‰å½±å“。对许多强风冷å´å˜åŽ‹å™¨æ¥è¯´ï¼Œå†·å´å™¨é£Žæ‰‡æ˜¯æ¯”å˜åŽ‹å™¨æœ¬èº«æ›´æ˜Žæ˜¾çš„噪声æºã€?/p>
<p>　　从高频å˜åŽ‹å™¨åˆ¶é€ 工艺上分æžï¼Œä¸»è¦æœ‰ä¸‹åˆ—å‡ ä¸ªæ–¹é¢ï¼?/p>
<p>　　1.å˜åŽ‹å™¨å·¥ä½œç£å¯†é€‰çš„太高,接近饱和,æ¼ç£å¤ªå¤§,产生噪音;</p>
<p>　　2.é“心的æ质太å·?æŸè€—太é«?产生噪音;</p>
<p>　　3.工作回路ä¸è°æ³¢å«é‡ã€ç›´æµåˆ†é‡ä¹Ÿä¼šå¯¼è‡´é“心甚至线圈的噪音产生;</p>
<p>　　4.å˜åŽ‹å™¨çš„制作工艺ï¼?/p>
<p>　　a.线圈绕制太æ¾;</p>
<p>　　b.线圈和é“心之间固定ä¸ç‰¢å›º;</p>
<p>　　c.é“心固定ä¸ç‰¢å›?</p>
<p>　　d.EI之间å˜åœ¨æ°”隙，工作时产生“蜂鸣”;</p>
<p>　　e.Eåž‹é“心外部的2片硅钢片的èˆéƒ¨ï¼Œå¤„ç†ä¸å¥½çš„è¯ï¼Œæžæ˜“产生噪éŸ?</p>
<p>　　f.浸漆工艺处ç†ï¼šç»ç¼˜æ¼†çš„粘度控åˆ?</p>
<p>　　g.å˜åŽ‹å™¨å¤–部金å±?导ç£çš?结构件固定ä¸ç‰¢å›º;</p>
<p>　　5.如果是高压的产å“,ç»ç¼˜å¤„ç†ä¸å¥½çš„è¯,也会有噪音ã€?br />
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