The utility model relates to an electric heating component improvement design technical field, and discloses an electric heater for a drinking water machine, which is composed of several electric heating tubes. The electric heating pipe is assembled from the outer to the inside by an anticorrosion tube, a heat dissipation tube and a PTC component, and the PTC component is made of a PTC thermistor connecting wire. The PTC assembly and temperature sensor are embedded and installed in the tube. The anticorrosion tube is set on the surface of the heat dissipation tube. The end of the anticorrosion pipe is closed through the sealing ring. The sealing ring is made of high temperature rubber or silica gel. The heat dissipation tube includes two semicircular canisters which are interconnected with each other, the semi circular empty cylinder is installed in the semi circular cylinder, and the semicircle empty cylinder is closed. A temperature sensor is installed in the cavity formed. The device is designed to make use of the PTC thermistor's heating principle to produce heat. The heating temperature is constant, the use process has no clear fire, the safety factor is high, and the problems of damage of electric heating tube and the hidden danger exist in the long use of the resistance wire heating.
【技术实现步骤摘要】
一种饮水机用电加热器
本技术涉及电加热部件改进设计
,特别是涉及一种饮水机用电加热器。
技术介绍
传统的饮水机等加热水的装置,通常使用电热丝发热加热水,电热丝固化在不锈钢管内形成加热器,通电产生热量通过不锈钢管导热从而达到加热水的效果。然而,电热丝通电发热在长期使用过程中易发生氧化,温度超高容易烧坏水质,在缺乏水介质时还有可能发生干烧,电热丝自身升温熔融,就产生明火,发生火灾。PTC是PositiveTemperatureCoefficient的缩写,意思是正的温度系数,泛指正温度系数很大的半导体材料或元器件。通常我们提到的PTC是指正温度系数热敏电阻,简称PTC热敏电阻。PTC热敏电阻是一种典型具有温度敏感性的半导体电阻,超过一定的温度(居里温度)时,它的电阻值随着温度的升高呈阶跃性的增高。
技术实现思路
本技术的目的在于克服现有技术的不足,提供一种饮水机用电加热器,采用PTC热敏电阻加热,克服了传统电热丝存在干烧引起火灾的风险,安全系数高。为了达到上述目的,本技术采用的技术方案是:一种饮水机用电加热器,由若干电加热管组成,所述的电加热管从外至内依次由防腐管、散热管和PTC组件装配而成,所述的PTC组件由PTC热敏电阻连接导线制成,所述的散热管中嵌入安装PTC组件和温度传感器,所述的防腐管套装在散热管表面,防腐管末端通过密封圈封闭导线。进一步的,如上所述的散热管包括两个互相扣合连接的半圆空筒,半圆空筒中安装PTC组件。进一步的,如上所述的半圆空筒闭合形成的空腔中安装温度传感器。进一步的,如上所述的热敏电阻末端导线通过绝缘套管均匀包裹。进一步的,如上所述的密 ...
【技术保护点】
一种饮水机用电加热器,其特征在于,由若干电加热管(9)组成,所述的电加热管(9)从外至内依次由防腐管(7)、散热管(4)和PTC组件(1)装配而成,所述的PTC组件(1)由PTC热敏电阻连接导线(3)制成,所述的散热管(4)中嵌入安装PTC组件(1)和温度传感器(6),所述的防腐管(7)套装在散热管(4)表面,防腐管(7)末端通过密封圈(8)封闭导线(3)。
【技术特征摘要】
1.一种饮水机用电加热器,其特征在于,由若干电加热管(9)组成,所述的电加热管(9)从外至内依次由防腐管(7)、散热管(4)和PTC组件(1)装配而成,所述的PTC组件(1)由PTC热敏电阻连接导线(3)制成,所述的散热管(4)中嵌入安装PTC组件(1)和温度传感器(6),所述的防腐管(7)套装在散热管(4)表面,防腐管(7)末端通过密封圈(8)封闭导线(3)。2.根据权利要求1所述的饮水机用电加热器,其特征在于,所述的散热管(4)包括两个互相扣合连接的半圆空筒...
【专利技术属性】
技术研发人员:刘杰,
申请(专利权)人:东莞嘉澜高电子科技有限公司,
类型:新型
国别省市:广东,44
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