Dometic Group has been granted a patent for an air conditioning apparatus for recreational vehicles. The apparatus includes a heat exchanger, cooling circuit, compressor, and electrical power unit. The controller is programmed to set the power unit to generate a variable infeed voltage based on input data, ensuring the input electrical current or power remains below a reference value. The apparatus also includes a positioning device and memory to adjust the reference value based on the location of the air conditioning apparatus. GlobalData’s report on Dometic Group 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 Dometic Group, Vehicle PV panel roofs was a key innovation area identified from patents. Dometic Group's grant share as of September 2023 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for energy-efficient air conditioning apparatus for vehicles

Source: United States Patent and Trademark Office (USPTO). Credit: Dometic Group AB

A recently granted patent (Publication Number: US11772452B2) describes an air conditioning apparatus specifically designed for recreational vehicles. The apparatus includes a heat exchanger, a cooling circuit with a compressor, and an electrical power unit. The unique feature of this air conditioning apparatus is the inclusion of a controller that is connected to the electrical power unit. The controller is programmed to receive input data representative of a reference value for the input electrical current or power. Based on this input data, the controller sets the electrical power unit to generate a variable infeed voltage at a reference amplitude and/or frequency. This ensures that the input electrical current or power remains below the reference value.

Additionally, the air conditioning apparatus includes a positioning device, such as a global positioning system (GPS), which determines the position of the apparatus. The controller is able to receive a location signal from the positioning device and set the input data based on a corresponding reference value stored in the memory. This allows the air conditioning apparatus to adjust its operation based on the location of the recreational vehicle.

The apparatus also includes a memory that contains a plurality of reference values matched with corresponding locations. The controller is programmed to select one of these reference values as the input data, depending on the location signal received from the positioning device.

Furthermore, the air conditioning apparatus includes at least one condensing fan and/or evaporating fan that is driven by the controller based on the input data. The memory contains predetermined settings for the compressor and the fans, and the controller selects the appropriate setting based on a user-selected operation-mode parameter.

In terms of power supply, the apparatus includes an electric supply component that generates a predetermined direct voltage at the output terminal, independent of the frequency and amplitude of the external power supply. This ensures a stable power supply to the electric motor of the compressor and the controller.

Overall, this patented air conditioning apparatus offers improved efficiency and customization for recreational vehicles. By adjusting the infeed voltage based on location and user-selected parameters, the apparatus optimizes its performance while minimizing power consumption.

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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.