电暖手袋里的是什么,及其原理是什么?

2025-02-26 09:08:39
推荐回答(4个)
回答1:

电暖手袋里面装的是液体。

电暖手袋的原理:

1、通过化学反应来发热的,市面上的暖手宝就是这种类型的,通过里面化学物质的接触,产生的热量,温度大约40℃左右。

2、使用锂电池功能,内部发热片发热,使用USB接口充放电,跟暖手鼠标垫类似,由于锂电池能充放电的功能,一般也能做为移动电源使用。体积小巧,方便随身携带,温度能达到50℃左右。


扩展资料:

暖手袋的使用特点:

1、使用锂电池供能,大容量,更环保,可以循环使用,充电3-4小时,常温下可以保温6-7小时。

2、内部采用最新的陶瓷加热器,健康,红外线传热,促进血液循环,加快新陈代谢,提高机体免疫力,无电磁辐射,是关节炎、肩周炎、腰腿痛、风湿及类风湿、畏寒不适、四肢发凉、伤处遇寒疼痛等患者止痛保健和冬季保暖的理想用品。

参考资料来源:百度百科—暖手宝

回答2:

  电暖手袋(热水袋)分电极式和非电极式,下面系统性分析电极式和非电极式的工作原理。

  一、电极式电暖手袋(热水袋)发热原理:

  电极式电暖手袋(热水袋)的发热就是把两个电极直接插入水中(见图1),

  一般电极式电暖手袋(热水袋)都罐装0~7%的盐水,水中含有大量的电离子,盐水中的离子在交变电场的作用下,不停地相互撞击产生热,同时盐水中的氯离子和氢离子在电场作用下产生电化学反应生成氢气和氯气,这就是电极式电暖手袋(热水袋)的发热原理。

  需要说明是:

  电极式电暖手袋(热水袋)内装的液体离子的活跃度与温度成正比,温度低时,离子活跃度低,温度高时,离子活跃度高。这导致电极式电暖手袋(热水袋)在温度低时功率低,在温度高时功率高,最大相差在20以上。综上所述,电极式电暖手袋(热水袋)的特点有以下三点:

 水中带电,安全性特差;

    加热产生气体多,容易发生气涨危险;

    加热时功率不稳定,用电不安全。

  二、非电极式电暖手袋(热水袋)的加热原理:首先通过发热介质(如电发热管、电发热丝、PTC、发热片等)自身发热,然后通过非导电的导热介质把发热介质产生的热传导到水中(见图2)。

  1. 综上所述,非电极式电暖手袋(热水袋)的特点有三点,发热介质不与水直接接触,水不带电,安全性高;由于没有直接水,没有电离化学反应,产生的气体比较少,气涨危险低;加热时功率自始至终一直稳定,用电更安全。这也是电暖手

  袋(热水袋)国标中推荐的发热方式。

  

回答3:

电暖手袋里装的是液体,即是水。还有里面有电热管,充电可以加热。原理是:是导电液氯化钙,其电阻远小于水的电阻,也可在水内加盐降低水电阻,比例:100比5,接通电源后,电极间通过导电性液体形成回路,电流流经导电性液体发热,使电暖袋温度升高,当温度升高到温控器动作温度时,温控器就自动切断电源,断开电流,停止加热。

回答4:

一般采高级塑料胶材料制成,以高储能致热液为发热体通过袋内液能半导体均匀充电暖手袋里面就是普通水,之所以会发热是在水袋里面安装了电热管,原理和

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