Carel Industries has patented an operating method for a compressor in a refrigerating machine. The method involves setting calibration values, injecting disturbance signals, detecting resulting signals, and regulating supply voltage based on control parameters. The method aims to optimize the efficiency and performance of the electric motor driving the compressor. GlobalData’s report on Carel Industries gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Carel Industries, Hermetic pumps was a key innovation area identified from patents. Carel Industries's grant share as of May 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
Operating method for compressor of refrigerating machine using electric motor
A recently granted patent (Publication Number: US11952997B2) discloses an innovative operating method for a compressor in a refrigerating machine. The method involves setting a stator resistance calibration value and threshold values for a control parameter, injecting a disturbance signal into the electric motor during operation, detecting resulting voltage and current signals, and regulating the supply voltage based on the control parameter. The method includes selectively injecting the disturbance signal in different modes, measuring phase currents, and deriving voltage and current components for calculation. The patent also covers an operating apparatus for the compressor, which includes a power supply device and a detection device configured to modulate the supply voltage and regulate it based on the control parameter and threshold values.
The patent further details the components and operations of the operating apparatus, including converters for system conversion, filtering units for isolating DC components, and current regulators. The apparatus is designed to detect and respond to disturbances in the electric motor efficiently, ensuring optimal performance and reliability. Additionally, the patent covers the application of the method and apparatus in a refrigerating machine, specifically in a compressor, highlighting the potential benefits of improved control and monitoring in refrigeration systems. Overall, the patent introduces a novel approach to operating and regulating compressors in refrigerating machines, emphasizing precision and effectiveness in maintaining performance and stability.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
