Haier Group has been granted a patent for a single-package air conditioner unit. The unit includes a housing, outdoor and indoor heat exchanger assemblies, a compressor, and a plenum. The plenum is attached to the housing and can be placed within a wall channel. It has a primary air channel in fluid communication with the outdoor portion and a make-up air inlet in fluid communication with the indoor portion. The unit also has an intake conduit with separate primary and secondary inlets upstream from the indoor heat exchanger assembly. GlobalData’s report on Haier 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 Haier Group, contactless charging was a key innovation area identified from patents. Haier Group's grant share as of September 2023 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for a single-package air conditioner unit

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

A recently granted patent (Publication Number: US11774133B2) describes a single-package air conditioner unit with several innovative features. The unit includes a housing with an outdoor portion and an indoor portion, as well as an outdoor heat exchanger assembly and an indoor heat exchanger assembly. A compressor circulates refrigerant between the outdoor and indoor heat exchangers.

One notable feature is the inclusion of a plenum attached to the housing, which can be placed within a wall channel. The plenum has a primary air channel that allows air to flow between the outdoor and indoor portions. It also includes a make-up air (MUA) inlet that permits air to enter the indoor portion. An angled inlet plate within the plenum helps direct the air flow.

The unit also includes an intake conduit downstream from the MUA inlet, which defines an intake passage upstream from the indoor heat exchanger assembly. The intake conduit has a primary inlet and a secondary inlet, both of which allow air to enter separately.

Additionally, the plenum has an equalizing air (EA) exhaust that receives air downstream from the indoor portion. An angled exhaust plate within the plenum helps control the air flow in this area.

Another feature of the unit is the inclusion of an outdoor inlet and an outdoor outlet in the housing. These help facilitate the flow of air through the unit.

Overall, this single-package air conditioner unit offers several innovative features that improve air flow and efficiency. The inclusion of the plenum, angled inlet plate, and intake conduit with separate inlets allows for better control of air flow. The unit's design also helps facilitate the circulation of refrigerant and the overall cooling process.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.