{"id":9309,"date":"2026-02-19T00:11:17","date_gmt":"2026-02-19T00:11:17","guid":{"rendered":"https:\/\/www.zehsm.com\/?p=9309"},"modified":"2026-02-19T00:11:17","modified_gmt":"2026-02-19T00:11:17","slug":"%e3%83%af%e3%82%a4%e3%83%a4%e3%83%ac%e3%82%b9%e5%85%85%e9%9b%bb%e3%82%b9%e3%83%94%e3%83%bc%e3%82%ab%e3%83%bc%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e6%94%be%e7%86%b1%e5%95%8f%e9%a1%8c%e3%81%ae%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.zehsm.com\/ja\/how-to-solve-heat-dissipation-issues-in-wireless-charging-speakers\/","title":{"rendered":"\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u304a\u3051\u308b\u653e\u71b1\u554f\u984c\u306e\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"

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\"\u30c4\u30a4\u30fc\u30bf\u30fc\"<\/p>\n

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\"\u30e9\u30a6\u30f3\u30c9\u30b9\u30d4\u30fc\u30ab\u30fc<\/p>\n

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\n| \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/strong> | \u6a19\u6e96\u7684\u306a\u71b1\u767a\u751f\u91cf<\/strong> | \u30d4\u30fc\u30af\u6642\u306e\u6761\u4ef6<\/strong> | \u52b9\u7387\u7bc4\u56f2<\/strong> |
\n|\u2014\u2014\u2014\u2014\u2014|\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2013|\u2014\u2014\u2014\u2014\u2014\u2014\u2014|\u2014\u2014\u2014\u2014\u2014\u2014\u2014-|
\n| \u30af\u30e9\u30b9D\u30a2\u30f3\u30d7 | \u901a\u5e38\u518d\u751f\u66422\uff5e8W | \u4f4e\u97f3\u30d4\u30fc\u30af\u664215W\u4ee5\u4e0a | 80\uff5e95% |
\n| Qi\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u5668 | 10W\u5145\u96fb\u66423\uff5e6W | 15W\u6025\u901f\u5145\u96fb\u66428W | 70\uff5e85% |
\n| \u30ea\u30c1\u30a6\u30e0\u30d0\u30c3\u30c6\u30ea\u30fc | \u6025\u901f\u5145\u96fb\u66421\uff5e3W | \u9ad8C\u30ec\u30fc\u30c8\u66425W\u4ee5\u4e0a | 95\uff5e99%\uff08\u30af\u30fc\u30ed\u30f3\u52b9\u7387\uff09 |
\n| Bluetooth\/WiFi SoC | \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u66420.5\uff5e1.5W | \u30da\u30a2\u30ea\u30f3\u30b0\/\u8ee2\u9001\u66422W | \u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u308a\u5909\u52d5 |
\n| \u30b7\u30b9\u30c6\u30e0\u5168\u4f53<\/strong> | \u6a19\u6e96\u66426.5\uff5e18.5W<\/strong> | \u30d4\u30fc\u30af\u6642\u5408\u8a0830W\u4ee5\u4e0a<\/strong> | \u5168\u4f53\u306765\uff5e80%<\/strong> |<\/p>\n

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\u9ad8\u6027\u80fd\u71b1\u754c\u9762\u6750\u6599\uff08TIM\uff09\u306f\u3001\u7b2c\u4e00\u306e\u9632\u5fa1\u5c64\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u6700\u8fd1\u306e\u30b0\u30e9\u30d5\u30a7\u30f3\u5f37\u5316\u30b5\u30fc\u30de\u30eb\u30d1\u30c3\u30c9\uff08\u71b1\u4f1d\u5c0e\u7387\u6700\u592715 W\/mK\uff09\u306e\u958b\u767a\u306f\u3001\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u304b\u3089\u30d2\u30fc\u30c8\u30b9\u30d7\u30ec\u30c3\u30c0\u30fc\u3078\u306e\u5353\u8d8a\u3057\u305f\u71b1\u4f1d\u9054\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5f93\u6765\u306e\u30b7\u30ea\u30b3\u30f3\u30d1\u30c3\u30c9\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u308c\u3089\u306f\u3088\u308a\u5e83\u3044\u6e29\u5ea6\u7bc4\u56f2\uff08-40\u00b0C\uff5e200\u00b0C\uff09\u306b\u308f\u305f\u3063\u3066\u67d4\u8edf\u6027\u3092\u7dad\u6301\u3057\u3001\u4e0d\u5747\u4e00\u306a\u8868\u9762\u3078\u306e\u512a\u308c\u305f\u9069\u5408\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n

\u76f8\u5909\u5316\u6750\u6599\uff08PCM\uff09\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7269\u8cea\u306f\u3001\u76f8\u8ee2\u79fb\uff08\u56fa\u4f53\u304b\u3089\u6db2\u4f53\uff09\u4e2d\u306b\u304b\u306a\u308a\u306e\u71b1\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5438\u53ce\u3057\u307e\u3059\u3002\u30a2\u30f3\u30d7IC\u3084\u5145\u96fb\u30b3\u30a4\u30eb\u306a\u3069\u306e\u4e3b\u8981\u306a\u71b1\u6e90\u306e\u8fd1\u304f\u306b\u7d71\u5408\u3055\u308c\u305f\u3001\u878d\u70b9\u304c\u7d0445\uff5e55\u00b0C\u306ePCM\u306f\u3001\u9ad8\u8ca0\u8377\u4f7f\u7528\u6642\u306e\u4e00\u6642\u7684\u306a\u71b1\u30b9\u30d1\u30a4\u30af\u3092\u7de9\u885d\u3057\u3001\u30b5\u30fc\u30de\u30eb\u30b9\u30ed\u30c3\u30c8\u30ea\u30f3\u30b0\u3092\u9632\u304e\u307e\u3059\u30022024\u5e74\u306eJournal of Thermal Science\u306e\u7814\u7a76\u3067\u306f\u3001\u30b0\u30e9\u30d5\u30a7\u30f3\u6dfb\u52a0\u5264\u3092\u542b\u3080\u30d1\u30e9\u30d5\u30a3\u30f3\u30d9\u30fc\u30b9\u306ePCM\u306f\u3001\u540c\u7b49\u91cd\u91cf\u306e\u5f93\u6765\u306e\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u3068\u6bd4\u8f03\u3057\u3066\u3001\u84c4\u71b1\u5bb9\u91cf\u304c300%\u5411\u4e0a\u3059\u308b\u3053\u3068\u304c\u5b9f\u8a3c\u3055\u308c\u307e\u3057\u305f\u3002.<\/p>\n

\u69cb\u9020\u90e8\u54c1\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306f\u307e\u3059\u307e\u3059\u91d1\u5c5e\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u8907\u5408\u6750\u6599\uff08MMC\uff09\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u70ad\u5316\u30b1\u30a4\u7d20\u3084\u7a92\u5316\u30db\u30a6\u7d20\u306e\u7c92\u5b50\u3067\u5f37\u5316\u3055\u308c\u305f\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u5408\u91d1\u306f\u3001\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3068\u540c\u6642\u306b\u3001\u6700\u5927220 W\/mK\u306e\u71b1\u4f1d\u5c0e\u7387\u3092\u63d0\u4f9b\u3057\u3001\u3053\u308c\u306f\u7d14\u9285\u306b\u5339\u6575\u3057\u307e\u3059\u304c\u3001\u91cd\u91cf\u306f60%\u8efd\u91cf\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u8907\u5408\u6750\u6599\u306b\u3088\u308a\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u81ea\u4f53\u304c\u5358\u306a\u308b\u53d7\u52d5\u7684\u306a\u5bb9\u5668\u3067\u306f\u306a\u304f\u3001\u80fd\u52d5\u7684\u306a\u71b1\u7ba1\u7406\u8981\u7d20\u3068\u306a\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u3055\u3089\u306b\u3001\u30a8\u30a2\u30ed\u30b2\u30eb\u65ad\u71b1\u6750\u306f\u6226\u7565\u7684\u306a\u7528\u9014\u3092\u898b\u51fa\u3057\u3066\u3044\u307e\u3059\u3002\u653e\u71b1\u306b\u306f\u76f4\u611f\u306b\u53cd\u3057\u307e\u3059\u304c\u3001\u6226\u7565\u7684\u306b\u914d\u7f6e\u3055\u308c\u305f\u30a8\u30a2\u30ed\u30b2\u30eb\u30d0\u30ea\u30a2\u306f\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u3084\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u3088\u3046\u306a\u654f\u611f\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3001\u8fd1\u304f\u306e\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u304b\u3089\u306e\u904e\u5ea6\u306e\u6e29\u5ea6\u306b\u3055\u3089\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002\u3053\u306e\u533a\u753b\u5316\u306b\u3088\u308a\u3001\u4e3b\u8981\u306a\u71b1\u767a\u751f\u6e90\u306b\u5bfe\u3059\u308b\u3088\u308a\u52b9\u7387\u7684\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\u51b7\u5374\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u8a2d\u8a08\u306e\u6700\u9069\u5316\uff1a\u81ea\u7136\u5bfe\u6d41\u3068\u71b1\u62e1\u6563\u306e\u305f\u3081\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0<\/h2>\n

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\u5185\u90e8\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u6700\u9069\u5316\u306f\u3001\u53ef\u80fd\u306a\u9650\u308a\u4e3b\u8981\u306a\u71b1\u767a\u751f\u6e90\u3092\u5206\u96e2\u3057\u307e\u3059\u3002\u300c\u30b5\u30fc\u30de\u30eb\u30be\u30fc\u30cb\u30f3\u30b0\u300d\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u30b3\u30a4\u30eb\u3001\u30a2\u30f3\u30d7\u56de\u8def\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u3092\u3001\u5c02\u7528\u306e\u51b7\u5374\u7d4c\u8def\u3092\u6301\u3064\u7570\u306a\u308b\u30a8\u30ea\u30a2\u306b\u914d\u7f6e\u3057\u3001\u7d2f\u7a4d\u7684\u306a\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3092\u9632\u304e\u307e\u3059\u3002\u73fe\u5728\u30b9\u30d4\u30fc\u30ab\u30fc\u8a2d\u8a08\u3067\u6a19\u6e96\u3068\u306a\u3063\u3066\u3044\u308b\u6570\u5024\u6d41\u4f53\u529b\u5b66\uff08CFD\uff09\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u69d8\u3005\u306a\u5411\u304d\u3067\u306e\u6c17\u6d41\u30d1\u30bf\u30fc\u30f3\u3092\u30e2\u30c7\u30eb\u5316\u3057\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u914d\u7f6e\u3092\u6700\u9069\u5316\u3057\u307e\u3059\u3002.<\/p>\n

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\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u6750\u6599\u3082\u4e8c\u91cd\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30bb\u30e9\u30df\u30c3\u30af\u8907\u5408\u6750\u6599\u306f\u9ad8\u4fa1\u3067\u3059\u304c\u3001\u97f3\u97ff\u7684\u306b\u4e0d\u6d3b\u6027\u3067\u3042\u308a\u306a\u304c\u3089\u512a\u308c\u305f\u71b1\u653e\u6563\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3088\u308a\u7d4c\u6e08\u7684\u306b\u306f\u3001\u5185\u90e8\u306b\u71b1\u30ea\u30d6\u3092\u5099\u3048\u305f\u30c0\u30a4\u30ab\u30b9\u30c8\u4e9c\u925b\u5408\u91d1\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u3001\u304b\u306a\u308a\u306e\u71b1\u5bb9\u91cf\u3068\u62e1\u6563\u80fd\u529b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30bb\u30e9\u30df\u30c3\u30af\u30d5\u30a3\u30e9\u30fc\u3092\u6dfb\u52a0\u3057\u305f\u30dd\u30ea\u30a8\u30fc\u30c6\u30eb\u30a4\u30df\u30c9\uff08PEI\uff09\u306e\u3088\u3046\u306a\u5148\u9032\u7684\u306a\u30dd\u30ea\u30de\u30fc\u3067\u3055\u3048\u3001\u73fe\u5728\u3067\u306f1.5\uff5e2.5 W\/mK\u306e\u71b1\u4f1d\u5c0e\u7387\u3092\u9054\u6210\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u6a19\u6e96\u7684\u306aABS\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e10\u500d\u3067\u3059\u3002.<\/p>\n

\u30a2\u30af\u30c6\u30a3\u30d6\u51b7\u5374\u3068\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u71b1\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/h2>\n

\u30d1\u30c3\u30b7\u30d6\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u304c\u9650\u754c\u306b\u9054\u3057\u305f\u5834\u5408\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u51b7\u5374\u306f\u30d4\u30fc\u30af\u6027\u80fd\u306b\u5fc5\u8981\u306a\u71b1\u7684\u4f59\u88d5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u73fe\u4ee3\u306e\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3\u306b\u52d5\u7684\u306b\u5fdc\u7b54\u3059\u308b\u9ad8\u5ea6\u306a\u71b1\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u97f3\u97ff\u611f\u5ea6\u3092\u8003\u616e\u3057\u3066\u518d\u8a2d\u8a08\u3055\u308c\u305f\u5c0f\u578b\u5316\u30d6\u30ed\u30ef\u30fc\u30d5\u30a1\u30f3\u306f\u3001\u6700\u5c0f\u9650\u306e\u30ce\u30a4\u30ba\u516c\u5bb3\u3067\u5b9f\u8cea\u7684\u306a\u51b7\u5374\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30d7\u30ec\u30df\u30a2\u30e0\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304b\u3089\u501f\u7528\u3055\u308c\u305f\u78c1\u6c17\u6d6e\u4e0a\uff08\u30de\u30b0\u30ec\u30d6\uff09\u30d5\u30a1\u30f3\u6280\u8853\u306f\u3001\u6bce\u52062\uff5e3\u7acb\u65b9\u30d5\u30a3\u30fc\u30c8\u306e\u7a7a\u6c17\u3092\u79fb\u52d5\u3055\u305b\u306a\u304c\u3089\u3001\u5b9f\u8cea\u7684\u306b\u7121\u97f3\uff0815 dBA\u7a0b\u5ea6\uff09\u306e\u6c17\u6d41\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a1\u30f3\u306f\u9ad8\u71b1\u8ca0\u8377\u6642\u306e\u307f\u4f5c\u52d5\u3057\u3001\u901a\u5e38\u52d5\u4f5c\u6642\u306e\u30d0\u30c3\u30c6\u30ea\u30fc\u5bff\u547d\u3092\u7dad\u6301\u3057\u307e\u3059\u3002.<\/p>\n

\u71b1\u96fb\uff08\u30da\u30eb\u30c1\u30a7\uff09\u30af\u30fc\u30e9\u30fc\u306f\u3001\u96fb\u529b\u3092\u6d88\u8cbb\u3057\u307e\u3059\u304c\u3001\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u6b63\u78ba\u306a\u30b9\u30dd\u30c3\u30c8\u51b7\u5374\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002Bang & Olufsen Beosound A5\u306e\u3088\u3046\u306a\u30d7\u30ec\u30df\u30a2\u30e0\u30b9\u30d4\u30fc\u30ab\u30fc\u3067\u306f\u3001\u30de\u30a4\u30af\u30ed\u30da\u30eb\u30c1\u30a7\u7d20\u5b50\u304c\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u30ec\u30b7\u30fc\u30d0\u30fc\u3092\u76f4\u63a5\u51b7\u5374\u3057\u3001\u9577\u6642\u9593\u306e\u5145\u96fb\u30bb\u30c3\u30b7\u30e7\u30f3\u4e2d\u3067\u3082\u52b9\u7387\u3092\u7dad\u6301\u3057\u307e\u3059\u3002\u30da\u30eb\u30c1\u30a7\u7d20\u5b50\u306e\u9ad8\u6e29\u5074\u3092\u653e\u6563\u3059\u308b\u30d2\u30fc\u30c8\u30d1\u30a4\u30d7\u30b7\u30b9\u30c6\u30e0\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u5f93\u6765\u306e\u8a2d\u8a08\u3088\u308a\u3082\u30b3\u30a4\u30eb\u6e29\u5ea6\u309220\u00b0C\u4f4e\u304f\u7dad\u6301\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7ba1\u7406\u306f\u3001\u6700\u3082\u8cbb\u7528\u5bfe\u52b9\u679c\u306e\u9ad8\u3044\u30a2\u30af\u30c6\u30a3\u30d6\u51b7\u5374\u6226\u7565\u3092\u8868\u3057\u307e\u3059\u3002\u73fe\u4ee3\u306e\u30c7\u30b8\u30bf\u30eb\u30b7\u30b0\u30ca\u30eb\u30d7\u30ed\u30bb\u30c3\u30b5\uff08DSP\uff09\u306f\u3001\u8907\u6570\u306e\u6e29\u5ea6\u30bb\u30f3\u30b5\u30fc\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u76e3\u8996\u3057\u3001\u4ee5\u4e0b\u306e\u8907\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u52d5\u7684\u306b\u8abf\u6574\u3057\u307e\u3059\uff1a<\/p>\n

    \n
  • \u30a2\u30f3\u30d7\u51fa\u529b\u96fb\u529b\u3068\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u52d5\u4f5c<\/li>\n
  • \u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u96fb\u6d41\u3068\u96fb\u5727<\/li>\n
  • \u30d7\u30ed\u30bb\u30c3\u30b5\u30af\u30ed\u30c3\u30af\u901f\u5ea6<\/li>\n
  • \u30d5\u30a1\u30f3\u901f\u5ea6\uff08\u5b58\u5728\u3059\u308b\u5834\u5408\uff09<\/li>\n
  • LED\u8f1d\u5ea6\u4f4e\u6e1b<\/li>\n<\/ul>\n

    Harman\u306eThermal Optimization Algorithm\u306b\u4ee3\u8868\u3055\u308c\u308b\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30b5\u30fc\u30de\u30eb\u30b9\u30ed\u30c3\u30c8\u30ea\u30f3\u30b0\u304c\u767a\u751f\u3059\u308b\u524d\u306b\u3001\u6301\u7d9a\u6700\u5927\u51fa\u529b\u3092\u6700\u592740%\u5ef6\u9577\u3067\u304d\u307e\u3059\u3002\u6a5f\u68b0\u5b66\u7fd2\u306e\u5b9f\u88c5\u306f\u73fe\u5728\u3001\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3\u306b\u57fa\u3065\u3044\u3066\u71b1\u306e\u84c4\u7a4d\u3092\u4e88\u6e2c\u3057\u3001\u6700\u9069\u306a\u6e29\u5ea6\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u4e8b\u524d\u306b\u6027\u80fd\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8abf\u6574\u3057\u307e\u3059\u3002.<\/p>\n

    \u3055\u3089\u306b\u3001\u30b9\u30de\u30fc\u30c8\u5145\u96fb\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u71b1\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3068\u9023\u643a\u3057\u307e\u3059\u3002\u5185\u90e8\u6e29\u5ea6\u304c40\u00b0C\u306b\u8fd1\u3065\u304f\u3068\u5145\u96fb\u96fb\u6d41\u3092\u4f4e\u6e1b\u3057\u300145\u00b0C\u3092\u8d85\u3048\u308b\u3068\u5b8c\u5168\u306b\u4e00\u6642\u505c\u6b62\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u30bb\u30eb\u3078\u306e\u71b1\u30b9\u30c8\u30ec\u30b9\u3092\u5927\u5e45\u306b\u4f4e\u6e1b\u3057\u30012024\u5e74\u306eBattery University\u306e\u7814\u7a76\u306b\u3088\u308b\u3068\u3001\u305d\u306e\u5bff\u547d\u3092\u6700\u5927300%\u5ef6\u9577\u3057\u307e\u3059\u3002.<\/p>\n

    \u5c06\u6765\u306e\u65b9\u5411\u6027\uff1a\u65b0\u8208\u6280\u8853\u3068\u6301\u7d9a\u53ef\u80fd\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/h2>\n

    \u71b1\u7ba1\u7406\u306e\u72b6\u6cc1\u306f\u9032\u5316\u3092\u7d9a\u3051\u3066\u304a\u308a\u3001\u5546\u696d\u5316\u304c\u8fd1\u3065\u3044\u3066\u3044\u308b\u3044\u304f\u3064\u304b\u306e\u6709\u671b\u306a\u6280\u8853\u304c\u3042\u308a\u307e\u3059\u3002\u56de\u8def\u57fa\u677f\u3084\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u58c1\u306b\u76f4\u63a5\u30a8\u30c3\u30c1\u30f3\u30b0\u3055\u308c\u305f\u30de\u30a4\u30af\u30ed\u6d41\u4f53\u51b7\u5374\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u9769\u65b0\u7684\u306a\u71b1\u4f1d\u9054\u80fd\u529b\u3092\u7d04\u675f\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5fae\u7d30\u306a\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30dc\u30bf\u30f3\u30bb\u30eb\u3088\u308a\u3082\u5c0f\u3055\u306a\u8815\u52d5\u30dd\u30f3\u30d7\u3067\u51b7\u5374\u6db2\u3092\u5faa\u74b0\u3055\u305b\u3001\u5f93\u6765\u306e\u65b9\u6cd5\u3088\u308a\u3082\u6700\u59273\u500d\u52b9\u7387\u7684\u306b\u71b1\u3092\u9664\u53bb\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

    \u6750\u6599\u306e\u6700\u524d\u7dda\u3067\u306f\u3001\u30ab\u30fc\u30dc\u30f3\u30ca\u30ce\u30c1\u30e5\u30fc\u30d6\u3068\u5782\u76f4\u914d\u5411\u30b0\u30e9\u30d5\u30a7\u30f3\u30b7\u30fc\u30c8\u306f\u3001\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u30ec\u30d9\u30eb\u306b\u8feb\u308b3,000 W\/mK\u3092\u8d85\u3048\u308b\u7406\u8ad6\u71b1\u4f1d\u5c0e\u7387\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u751f\u7523\u4e0a\u306e\u8ab2\u984c\u306f\u6b8b\u308b\u3082\u306e\u306e\u3001\u71b1\u754c\u9762\u6750\u6599\u3078\u306e\u521d\u671f\u5b9f\u88c5\u3067\u306f\u3001\u73fe\u5728\u306e\u30b0\u30e9\u30d5\u30a7\u30f3\u5f37\u5316\u5316\u5408\u7269\u3068\u6bd4\u8f03\u3057\u306650%\u306e\u6539\u5584\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

    \u6301\u7d9a\u53ef\u80fd\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3082\u91cd\u8981\u6027\u3092\u5897\u3057\u3066\u3044\u307e\u3059\u3002\u690d\u7269\u6cb9\u8102\u7531\u6765\u306e\u8102\u80aa\u9178\u306e\u3088\u3046\u306a\u30d0\u30a4\u30aa\u30d9\u30fc\u30b9\u539f\u6599\u304b\u3089\u5f97\u3089\u308c\u308b\u76f8\u5909\u5316\u6750\u6599\u306f\u3001\u77f3\u6cb9\u7cfb\u5316\u5408\u7269\u306b\u4ee3\u308f\u308b\u751f\u5206\u89e3\u6027\u306e\u4ee3\u66ff\u54c1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u512a\u308c\u305f\u71b1\u7279\u6027\u3092\u6301\u3064\u30bb\u30eb\u30ed\u30fc\u30b9\u30ca\u30ce\u30d5\u30a1\u30a4\u30d0\u30fc\u8907\u5408\u6750\u6599\u304c\u518d\u751f\u53ef\u80fd\u8cc7\u6e90\u304b\u3089\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

    \u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u898f\u683c\u81ea\u4f53\u3082\u3001\u71b1\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u65b0\u305f\u306b\u6279\u51c6\u3055\u308c\u305fQi v3.0\u4ed5\u69d8\uff082024\u5e74\uff09\u306b\u306f\u3001\u52d5\u7684\u96fb\u529b\u8abf\u6574\u3092\u4f34\u3046\u5fc5\u9808\u306e\u6e29\u5ea6\u76e3\u8996\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u306f\u73fe\u5728\u3001\u5145\u96fb\u30b3\u30a4\u30eb\u306e\u5468\u56f2\u306b\u5c11\u306a\u304f\u3068\u30823\u3064\u306e\u6e29\u5ea6\u30bb\u30f3\u30b5\u30fc\u3092\u542b\u3080\u5fc5\u8981\u304c\u3042\u308a\u3001\u6e29\u5ea6\u304c\u5b89\u5168\u306a\u95be\u5024\u3092\u8d85\u3048\u308b\u3068\u5145\u96fb\u96fb\u529b\u304c\u81ea\u52d5\u7684\u306b\u4f4e\u6e1b\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u898f\u683c\u3060\u3051\u3067\u3001\u8a8d\u8a3c\u30c7\u30d0\u30a4\u30b9\u306b\u304a\u3051\u308b\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u95a2\u9023\u306e\u71b1\u554f\u984c\u304c60%\u524a\u6e1b\u3055\u308c\u308b\u3068\u4e88\u6e2c\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n

    \u30b9\u30de\u30fc\u30c8\u30db\u30fc\u30e0\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u7d71\u5408\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u3092\u63d0\u793a\u3057\u307e\u3059\u3002\u90e8\u5c4b\u306e\u30b5\u30fc\u30e2\u30b9\u30bf\u30c3\u30c8\u3084\u74b0\u5883\u30bb\u30f3\u30b5\u30fc\u3068\u901a\u4fe1\u3059\u308b\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u7570\u5e38\u306b\u6696\u304b\u3044\u72b6\u6cc1\u3067\u306f\u4e8b\u524d\u306b\u51fa\u529b\u96fb\u529b\u3092\u4f4e\u6e1b\u3057\u305f\u308a\u3001\u3088\u308a\u51b7\u305f\u3044\u7a7a\u6c17\u6e90\u306e\u8fd1\u304f\u306b\u81ea\u8eab\u3092\u914d\u7f6e\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u300c\u5206\u6563\u578b\u71b1\u7ba1\u7406\u300d\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30ea\u30b9\u30cb\u30f3\u30b0\u74b0\u5883\u5168\u4f53\u3092\u51b7\u5374\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u4e00\u90e8\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002.<\/p>\n

    Conclusion: Balancing Performance, Safety, and User Experience<\/h2>\n

    Solving heat dissipation in wireless charging speakers requires a holistic approach spanning materials science, mechanical engineering, electrical design, and software intelligence. The most successful implementations layer multiple solutions: advanced materials for conduction, intelligent layouts for natural convection, active systems when needed, and predictive algorithms to prevent issues before they occur.<\/p>\n

    As consumer expectations continue rising\u2014demanding louder output, faster charging, and smaller form factors\u2014thermal management will only grow in importance. The brands that master this complex challenge will deliver not just superior audio products, but safer, more reliable, and longer-lasting devices that push the boundaries of what wireless audio can achieve. Through continued innovation in both passive and active cooling technologies, the future promises wireless charging speakers that maintain peak performance indefinitely, regardless of volume or charging status, finally eliminating thermal constraints from the audio experience.<\/p>\n

    \n

    Professional Q&A: Wireless Charging Speaker Thermal Management<\/h2>\n

    Q1: What is the maximum safe internal temperature for wireless charging speaker components during continuous operation?<\/strong><\/p>\n

    According to 2024 IEEE standards for consumer electronics thermal safety, critical components should not exceed:<\/em><\/p>\n

      \n
    • Amplifier ICs: 85\u00b0C maximum, with optimal performance below 75\u00b0C<\/em><\/li>\n
    • Wireless charging coils: 65\u00b0C maximum to maintain efficiency and prevent demagnetization<\/em><\/li>\n
    • Lithium batteries: 45\u00b0C maximum during charging, 60\u00b0C during discharge<\/em><\/li>\n
    • PCB substrates: 105\u00b0C for FR-4, though reliability decreases above 90\u00b0C<\/em><\/li>\n<\/ul>\n

      Most premium speakers implement thermal throttling beginning at 10-15\u00b0C below these maximums to ensure longevity and safety margins.<\/em><\/p>\n

      Q2: How does heat dissipation affect wireless charging efficiency, and what’s the measurable impact?<\/strong><\/p>\n

      Heat directly reduces wireless charging efficiency through several mechanisms:<\/em><\/p>\n

        \n
      1. Increased coil resistance: Copper resistance rises approximately 0.4% per \u00b0C, reducing power transfer<\/em><\/li>\n
      2. Ferrite saturation: Core materials lose permeability at elevated temperatures<\/em><\/li>\n
      3. Semiconductor losses: MOSFET on-resistance increases with temperature<\/em><\/li>\n<\/ol>\n

        Quantitatively, each 10\u00b0C rise above optimal temperature (typically 25-35\u00b0C) reduces overall charging efficiency by 1-2%. At 65\u00b0C, efficiency losses can reach 8-12%, significantly increasing charge times and energy waste. Modern designs with active cooling maintain efficiencies above 80% even during fast charging.<\/em><\/p>\n

        Q3: What are the most common failure points in wireless charging speakers related to thermal stress?<\/strong><\/p>\n

        Thermal-related failures typically follow this pattern:<\/em><\/p>\n

          \n
        1. Battery degradation: Capacity loss accelerates above 30\u00b0C, with 6-month exposure to 40\u00b0C reducing capacity by 20-30%<\/em><\/li>\n
        2. Solder joint fatigue: Thermal cycling causes expansion\/contraction, leading to cracked joints after 5,000-10,000 cycles<\/em><\/li>\n
        3. Capacitor drying: Electrolytic capacitors lose 50% of rated life for every 10\u00b0C above rated temperature<\/em><\/li>\n
        4. Magnet demagnetization: Speaker driver magnets lose 0.5-1.0% of flux density per \u00b0C above Curie temperature<\/em><\/li>\n
        5. Enclosure warping: Plastic deformation begins at temperatures as low as 60\u00b0C for some polymers<\/em><\/li>\n<\/ol>\n

          Q4: How do environmental factors (ambient temperature, altitude, humidity) affect cooling performance?<\/strong><\/p>\n

          Environmental conditions significantly impact thermal management:<\/em><\/p>\n

            \n
          • Ambient temperature: Each 10\u00b0C increase reduces natural convection effectiveness by 15-20%<\/em><\/li>\n
          • Altitude: At 1,500 meters, air density decreases ~15%, reducing convective cooling by similar percentages<\/em><\/li>\n
          • Humidity: High humidity improves heat capacity of air (beneficial) but may cause condensation risks<\/em><\/li>\n
          • Enclosure: Speakers used outdoors in direct sunlight can experience solar loading of 100-150W\/m\u00b2, adding substantial thermal load<\/em><\/li>\n<\/ul>\n

            Premium speakers now include environmental sensors to adjust thermal management strategies based on these factors.<\/em><\/p>\n

            Q5: What testing standards and methodologies ensure adequate thermal design in production units?<\/strong><\/p>\n

            Comprehensive thermal validation follows multiple standards:<\/em><\/p>\n

              \n
            1. IEC 62368-1: Safety requirements for audio\/video equipment<\/em><\/li>\n
            2. UL 9990: Standard for evaluation of wireless power transfer equipment<\/em><\/li>\n
            3. JEDEC JESD51: Methodology for thermal measurement of components<\/em><\/li>\n
            4. Real-world testing: 48-hour continuous maximum load tests at 40\u00b0C ambient temperature<\/em><\/li>\n
            5. Thermal imaging: Identifying hotspots during various operating modes<\/em><\/li>\n
            6. Accelerated life testing: Thermal cycling between -10\u00b0C and +55\u00b0C for 500+ cycles<\/em><\/li>\n<\/ol>\n

              Leading manufacturers now employ AI-driven thermal simulation during design phases, reducing physical prototyping cycles by 60% while improving accuracy.<\/em><\/p>","protected":false},"excerpt":{"rendered":"

              Introduction: The Heat Challenge in Modern Audio Devices Wireless charging speakers represent the pinnacle of convenience in today’s audio landscape, combining cord-free audio with cord-free power. However, this innovation comes with a significant thermal management challenge. As consumers demand more powerful audio output, faster charging capabilities, and increasingly compact designs, engineers face the complex task of dissipating substantial heat generated from multiple sources: power-hungry amplifiers, wireless charging coils, Bluetooth\/Wi-Fi modules, and battery systems. Excessive heat not only reduces component lifespan and charging efficiency but can also trigger safety shutdowns, degrade audio quality, and in extreme cases, pose fire risks. This article explores comprehensive, practical solutions to these thermal challenges, incorporating […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9309","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/comments?post=9309"}],"version-history":[{"count":1,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9309\/revisions"}],"predecessor-version":[{"id":9310,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9309\/revisions\/9310"}],"wp:attachment":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/media?parent=9309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/categories?post=9309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/tags?post=9309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}