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发明授权
CN101988839B 冰霜检测装置、热泵型空调器及其除霜控制方法 有权 许可

冰霜检测装置、热泵型空调器及其除霜控制方法
摘要：
本发明的冰霜检测装置，包括有发光器件和光接收器件；热泵型空调器，包括有安装在循环系统上的冰霜检测装置，所述冰霜检测装置包括有发光器件和光接收器件，所述冰霜检测装置与控制部件电路连接，并将检测到的光信号转换为电信号传输到控制部件。冰霜检测装置利用冰霜作为光束通道的障碍物，通过对光束的遮挡、折射，改变光的强度，使光接收器件输出信号发生变化。可应用在制冷器具的除霜控制、冰霜容积控制等方面。通过冰霜检测装置检测，或通过管路温度传感器和冰霜检测装置双重检测。本发明的热泵型空调器的除霜控制方法，使用冰霜检测装置对循环系统进行检测，能准确判断结霜与否，进行有效除霜，提高了空调器热泵制热效率。
摘要（英）：

A rime ice detection device of the invention comprises a light emitting device and a light receiving device; a heat-pump air-conditioner comprises a rime ice detection device installed on a circulation system, the rime ice detection device comprises a light emitting device and a light receiving device, the rime ice detection device is connected with a control component circuit, and converts a detected light signal into an electric signal to transmit the signal to a control component. The rime ice detection device uses the rime ice as barriers of a light beam channel, after shading and refracting the light beam and changing intensity of the light, an output signal of the light receiving device is changed. The rime ice detection device can be used for aspects, such as defrosting control of refrigerators, rime ice volume control and the like. The rime ice is detected by the rime ice detection device or dual-detection of a pipeline temperature sensor and the rime ice detection device. Thedefrosting control method of the heat-pump air-conditioner of the invention controls the rime ice detection device to detect the circulation system, so that frosting or not can be accurately judged, frost can be effective removed, and heating efficiency of the air-conditioner is improved.

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