Outdoor energy-storage device

The outdoor energy-storage device addresses space and efficiency issues in air conditioning systems by using a modular, insulated design with a water heat exchanger and air heat exchanger, ensuring efficient temperature control and maintenance accessibility.

US20260168684A1Pending Publication Date: 2026-06-18ENVOLA GMBH
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Patent Information

Application Number
US19/123835
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2022-12-22
Filing Date
2023-12-22
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing air conditioning systems for buildings require significant indoor space for energy storage and functional modules, leading to inefficiencies and increased energy loss.

Method used

An outdoor energy-storage device is designed with a modular structure, featuring an energy storage unit with a water heat exchanger and air heat exchanger, where exhaust air is directed radially through an air heat exchanger and axially upwards, with a heat pump and insulation unit to minimize space requirements and energy loss, and includes a device unit with functional modules like a hot water tank, all housed in a compact, insulated design.

Benefits of technology

The system achieves space-saving and efficient temperature control with minimal energy loss, ensuring operational reliability even at low outdoor temperatures without the need for additional heating, and facilitates easy maintenance by relocating components outside the building.

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Abstract

An outdoor energy-storage device of a system for the temperature conditioning of interior spaces of a building, in particular for heating, cooling or air conditioning, can be set up outside the building and includes, in a modular design, at least one energy storage unit, an air heat exchanger and a device unit arranged between the energy storage unit and the air heat exchanger and having an exhaust air connection for exhaust air of the building such that inflowing exhaust air of the building is distributed in the device unit. An insulation unit shields the device unit with respect to the environment, and the exhaust air of the building is, after flowing through the device unit, guided by a fan first to the energy storage unit and then to the air heat exchanger such that heat is recovered in the energy storage unit and in the air heat exchanger.
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