制冷系统、膨胀阀组件以及制冷系统控制方法
By introducing a bypass channel and a second temperature sensor into the refrigeration system, the problem of increased costs due to reliance on pressure sensors in the refrigeration system is solved, achieving lower cost and higher accuracy in superheat measurement.
CN115342539BActive Publication Date: 2026-07-17ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
- Filing Date
- 2021-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Relying on pressure sensors to determine the superheat at the compressor inlet in refrigeration systems increases manufacturing costs.
Method used
A bypass channel and a second temperature sensor are installed in the refrigeration system. By obtaining the difference between the sensing results of the first and second temperature sensors, the superheat at the compressor inlet is determined, thus replacing the function of the pressure sensor.
Benefits of technology
It reduces manufacturing costs and improves the accuracy and precision of superheat measurement under low-temperature conditions.
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Figure CN115342539B_ABST
Abstract
本申请涉及一种制冷系统、膨胀阀组件以及制冷系统控制方法，其中，该制冷系统包括旁通通道、第二温度传感器及控制器，旁通通道连通第一通道和第二通道，旁通通道具有节流部，节流部位于旁通通道的进口和出口之间，第二温度传感器的感应头设于旁通通道内，且位于节流部和旁通通道的出口之间，且邻近出口设置，在系统工作的情况下，第二温度传感器的感应头所在处的旁通通道内的工作介质处于饱和状态，控制器获取第一温度传感器和第二温度传感器的感测结果，确定感测结果的差值，并根据差值确定压缩机进口处的过热度，通过本申请，解决了制冷系统需要依赖压力传感器来确定压缩机进口处的过热度的问题，有利于降低制造成本。
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