A wireless temperature sensor is composed of a shell, a circuit board, antenna, thermal pad, a temperature sensing element, button cell and the bottom cover of the closed cylindrical structure, the antenna is composed of two parts and, in one end of the antenna is connected on the circuit board, the other end is connected with the external antenna, external antenna protection corrosion insulation sleeve, heat conducting pad is connected with the bottom cover, the bottom of the thermal pad is a plane, the upper end is a concave arc surface, the temperature sensing element is placed in the circular plane. Because the outer shell and the bottom cover are made of corrosion resistant stainless steel material, the exterior of the outer antenna is provided with corrosion resistant insulating material. Therefore, it has the characteristics of good heat resistance and corrosion resistance.
【技术实现步骤摘要】
【技术保护点】
一种无线温度传感器是一种由外壳（９）、电路板（５）、天线、导热垫（７）、感温元件（６）、扣式电池（４）和底盖（１０）组成的圆柱形封闭结构，其特征在于天线由内外二部分组成，内天线（３）连接在电路板（５）上，内天线（３）连接外天线（２），外天线（２）的外部有防腐蚀绝缘套（１），导热垫（７）连接在底盖（１０）上，导热垫（７）的底部是个平面，上端是一个凹陷的圆弧面，感温元件（６）放置在上述的圆弧面内。
【技术特征摘要】
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