Arrangement for saving heating energy

A timer-based delay in the room temperature controller addresses inefficiencies in heating systems by preventing immediate adjustments, enhancing energy efficiency and temperature stability through reducing rapid temperature adjustments and avoiding temperature overshoots.

DE102024132276A1Pending Publication Date: 2026-05-07INSTA ELEKTRO GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
INSTA ELEKTRO GMBH
Filing Date
2024-11-06
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing heating systems with window opening state detection devices cause inefficient energy use and temperature overshoot due to rapid adjustments in heating output and temperature control during ventilation.

Method used

Implement a timer-based delay in the room temperature controller to prevent immediate adjustments to the heating system after detecting a closed window, allowing time for wall warming of fresh air, thereby optimizing energy efficiency and preventing temperature overshoot.

Benefits of technology

The solution effectively reduces energy waste and stabilizes room temperature by avoiding excessive heating adjustments, leading to improved energy efficiency and temperature control.

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Abstract

An arrangement for saving heating energy is presented, comprising a room temperature controller RTR for influencing a heating system and a window opening state detection device X connected to the room temperature controller RTR for attachment to a window F, in particular to a window sash, for detecting the state of the window F with regard to an opening state of the window F. What is special about this is that the room temperature controller RTR starts a timer to begin a delay period if the state of the window F is classified as closed by the window opening state detection device X after being in an open state and is forwarded to the room temperature controller RTR, whereby the room temperature controller RTR does not send a signal to change the influence on a heating system within the delay period.
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Description

[0001] The invention relates to an arrangement for saving heating energy comprising a room temperature controller for influencing a heating system and a window opening state detection device connected to the room temperature controller for attachment to a window, in particular to a window sash, for detecting the state of the window with regard to an opening state of the window.

[0002] Room temperature controllers are used to influence a heating system, so that, for example, heating valves are controlled and / or flow temperatures are adjusted.

[0003] In previously known arrangements for saving heating energy, comprising a room temperature controller for influencing a heating system and a window opening state detection device connected to the room temperature controller, a signal is sent from the window opening state detection device to the room temperature controller when an open window is detected during ventilation.

[0004] The heating system then reduces its heating output or control variable. If the window is then closed, a signal is sent by the window opening detection device to the room temperature controller, whereupon the heating system maximizes its heating output or control variable so that the room reaches the setpoint temperature.

[0005] This causes the flow temperature to be raised particularly sharply, which is energy inefficient.

[0006] Furthermore, this behavior of the previously known arrangements causes an overshoot in the room temperature, since the building walls do not cool down as quickly as the air in the room during the ventilation process.

[0007] Based on this discussed state of the art, the invention therefore aims to create an arrangement for saving heating energy comprising a room temperature controller for influencing a heating system and a window opening status detection device connected to the room temperature controller, which on the one hand optimizes energy efficiency during heating and on the other hand prevents an overshoot of the room temperature.

[0008] This task is solved by such an arrangement, wherein the room temperature controller starts a timer to begin a delay period if the window's state is classified as closed by the window opening state detection device after being in an open state and is forwarded to the room temperature controller, wherein the room temperature controller does not send a signal to change the influence on a heating system within the delay period.

[0009] The core idea of ​​the invention is, on the one hand, to counteract an excessive increase in the flow temperature after a ventilation process by waiting, through the aforementioned delay time, until the cool, fresh room air is warmed by the still-warmed walls. As a result, an excessive increase in the flow temperature is effectively avoided, which contributes to a significant improvement in energy efficiency during heating.

[0010] On the other hand, the core idea of ​​the invention is that the implemented delay time simultaneously achieves an equilibration of the room temperature, thus preventing an overshoot of the room temperature as a result of excessive heating power caused by the room temperature controller.

[0011] A particular advantage is that the arrangement according to the invention is particularly cost-effective and can often even be retrofitted via a software update, since a clock or timer is already implemented in hardware in a large number of room temperature controllers.

[0012] According to a preferred embodiment of the arrangement according to the invention, the delay time is fixed and adjustable, for example, from 5 to 15 minutes. In particular, the delay time can also depend on the month of the year in order to indirectly implement a temperature dependency, thus optimizing the delay time.

[0013] According to a particularly preferred embodiment of the arrangement according to the invention, the room temperature controller incorporates temperature changes, during which the window's state is classified as open by the window opening state detection device, into the calculation of the delay time. This achieves a particularly intelligent and precise implementation of the temperature dependency, which requires no additional effort through manual parameterization.

[0014] The invention is described below with reference to the accompanying figures and an exemplary embodiment. It shows: Fig. 1: A schematic perspective view of an arrangement according to the invention.

[0015] Fig. Figure 1 shows a schematic perspective view of an arrangement according to the invention for saving heating energy, comprising a room temperature controller RTR for influencing a (not explicitly shown) heating system and a window opening state detection device X connected to the room temperature controller RTR. This is attached to a window F, in particular to a window sash, for detecting the state of the window F with regard to an opening state of the window F.

[0016] In Fig. 1 (left) shows window F in the closed state and the room temperature controller RTR in normal operation. When the window opening state detection device X now classifies the change in the state of window F from closed to open ( Fig. 1 middle), a change in room temperature will regularly occur, in particular a decrease in room temperature, whereupon the room temperature controller RTR regularly reacts by lowering the manipulated variable.

[0017] A special feature of the arrangement according to the invention is that, as in Fig. 1 (right) recognizable if the state of window F is classified as closed by the window opening state detection device X after an open state and forwarded to the room temperature controller RTR, the room temperature controller RTR does not send a signal to change the influence on a heating system within the delay time.

[0018] This advantageously prevents the flow temperature from being raised too high, resulting in energy savings for heating. It also avoids unwanted overshoots in room temperature.

[0019] The invention is described using an exemplary embodiment. Without departing from the scope of the applicable claims, numerous other possibilities for implementation would arise for a person skilled in the art, without the need to explain these in detail within the scope of these statements. Reference symbol list F window X Window opening status detection device RTR room temperature controller

Claims

[1] Arrangement for saving heating energy comprising a room temperature controller (RTR) for influencing a heating system and a window opening state detection device (X) connected to the room temperature controller (RTR) for attachment to a window (F), in particular to a window sash, for detecting the state of the window (F) with regard to an opening state of the window (F), characterized by , that the room temperature controller (RTR) starts a timer to begin a delay period if the state of the window (F) is classified as closed by the window opening state detection device (X) after being in an open state and is forwarded to the room temperature controller (RTR), whereby the room temperature controller (RTR) does not send a signal to change the influence on a heating system within the delay period. [2] Arrangement according to claim 1, characterized by that the delay time is fixed and adjustable. [3] Arrangement according to claim 1, characterized by , that the room temperature controller (RTR) allows a temperature development, while the state of the window (F) was classified as open by the window opening state detection device (X), to be included in the calculation of the delay time.