Lei Shi

Title: Lei Shi: Air-Conditioning and Energy-Management Innovations.

Introduction

Lei Shi is an inventor based in Qingdao, China, whose patent work focuses on air-conditioning systems, energy consumption, and refrigerant management. The supplied information lists 2 patents and identifies Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. as the company where Shi works.

Latest Patents

“Air conditioner and method for determining energy consumption of air conditioner” describes a system that estimates an air conditioner’s energy use. Its controller determines the operating frequency of a controlled device and the frequency converter’s output current and input power. It then uses operating frequency and output current to estimate converter efficiency and determine the converter’s input power.

“Air conditioner and control method thereof” addresses refrigerant-amount estimation. The controller checks whether the air conditioner is operating stably in cooling mode, compares the current supercooling degree with a target value under a standard condition, and accounts for changes in the outdoor unit’s internal volume. It uses these values to calculate a refrigerant-amount difference and determine the system’s refrigerant amount.

Career Highlights

Shi’s listed inventions apply control methods and operating data to practical air-conditioning challenges. The patents describe approaches to estimating energy consumption and assessing refrigerant quantity, both of which are relevant to system operation and management.

Collaborations

Shi is associated with Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. The supplied information also names Xingxiang Xia and Guilan Liu as coworkers.

Conclusion

Lei Shi’s listed patent work centers on improving how air-conditioning systems estimate energy use and refrigerant quantity, reflecting a focus on control and system-management technologies.