“睡觉时蓝牙耳机突然在耳内爆炸”，消防提醒
双语君约 4 分钟A university student in Zhengzhou, Henan province, narrowly avoided serious injury when one of his wireless earbuds exploded while he was wearing it in bed.
The student, surnamed Sun, told local media that the incident occurred at around 1 am on Wednesday. He was watching videos on his phone when the earbud suddenly overheated and exploded.
Fortunately, he was not seriously injured. A hospital examination the following morning confirmed that his eardrum remained intact and his hearing had not been affected. He said he now experiences only slight ear congestion, while the ringing he initially noticed has largely disappeared.
Similar incidents involving overheating or exploding earbuds have been reported online, affecting both major brands and low-cost unbranded products.
消防提醒
据甘肃消防，部分蓝牙耳机存在多重风险：耳机内部空间毫厘之间，热量一旦产生，极易积聚；劣质、老化或受损的电源管理电路，无法精准控制电池的充放电过程；日常的跌落、挤压，可能导致电池内部隔膜微损，引发内短路。
三者叠加，一旦电池发生 “热失控”（内部连锁化学反应失控产热），在狭小坚固的外壳内，压力与热量急速攀升，最终可能导致鼓包、冒烟、喷火甚至爆炸。
Fire safety officials say the compact design of wireless earbuds can increase the risk of thermal runaway under certain conditions. Heat can accumulate easily inside such small devices. Faulty or aging power management circuits may fail to regulate charging properly, while drops or physical impacts can cause microscopic damage to a battery's internal separator, potentially leading to a short circuit.
thermal /ˈθɜːrml/ 热的，热量的
Once thermal runaway begins, temperatures and pressure can rise rapidly inside the device casing, resulting in swelling, smoke, fire, or, in rare cases, an explosion.
❶ 使用原装或认证充电器与充电线。
Use only original or certified chargers and charging cables.
❷ 避免整夜过充，充电时请将充电舱置于不易燃、通风的硬质表面（如桌面），远离床铺、沙发、纸张等可燃物。
Avoid charging earbuds overnight. Place charging cases on hard, well-ventilated surfaces away from bedding, sofas, and other flammable materials.
❸ 若佩戴时感到异常发热，应立即取下并停止使用。
Stop using earbuds immediately if they become unusually hot.
❹ 避免在高温环境下长时间使用。
Avoid prolonged use in high-temperature environments.
❺ 防止耳机受到强烈撞击或挤压。
Protect earbuds from drops, crushing, and other strong impacts.
❻ 如长期不用，建议将耳机与充电舱电量保持在50%左右，妥善存放。
If storing them for an extended period, keep both the earbuds and charging case at around 50% battery capacity.
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