DE3807021A1 - Room temperature controller designed to have a comforting (cosiness) effect - Google Patents

Room temperature controller designed to have a comforting (cosiness) effect

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Publication number
DE3807021A1
DE3807021A1 DE3807021A DE3807021A DE3807021A1 DE 3807021 A1 DE3807021 A1 DE 3807021A1 DE 3807021 A DE3807021 A DE 3807021A DE 3807021 A DE3807021 A DE 3807021A DE 3807021 A1 DE3807021 A1 DE 3807021A1
Authority
DE
Germany
Prior art keywords
room temperature
sensor
temperature controller
controller according
theta
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE3807021A
Other languages
German (de)
Inventor
Martin Bard
Werner Dipl Ing Haussel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eberle GmbH
Original Assignee
Eberle GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eberle GmbH filed Critical Eberle GmbH
Priority to DE3807021A priority Critical patent/DE3807021A1/en
Publication of DE3807021A1 publication Critical patent/DE3807021A1/en
Ceased legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/20Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/1927Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Central Heating Systems (AREA)

Abstract

A room temperature controller for panel heaters, which is designed to have a so-called comforting effect and works according to the principle of the two-point controller, is intended to be improved in the way that, for measuring the actual value, a first sensor R theta u for determining the room temperature theta u and a second sensor R theta o for determining the surface temperature theta o are connected in series. By a suitable choice of the ratios of the sensor resistances relative to each other, moreover, a reciprocal dependence between the room temperature and the surface temperature is produced in an ideal way. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Raumtemperaturregler gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a room temperature controller according to the preamble of claim 1.

Der Regler soll derart arbeiten, daß das Verhältnis der Differenzen der Temperaturen an den Fühlern für Umgebungsluft bzw. für die Oberfläche der angegebenen Formel, wie in Anspruch 2 ausgeführt, entspricht.The controller should work in such a way that the ratio of the differences the temperatures at the sensors for ambient air or for the Surface of the formula given, as set out in claim 2, corresponds.

Bisher wurde bei Flächenheizungen lediglich die Temperatur der Heizfläche überwacht und daraus indirekt die Raumtemperatur geregelt.So far, only the temperature of the Monitoring the heating surface and indirectly regulating the room temperature.

Aus der Praxis sind jetzt auch elektronische Differenz-Temperatur­ regler bekannt, z.B. für Solarheizungen, deren Funktion aus der Differenz zwischen den Fühlertemperaturen abgeleitet wird, wobei ein Fühler die Temperatur des Kollektors und der andere die des Wasserspeichers ermittelt (s. Fig. 2).Electronic differential temperature controllers are now also known in practice, for example for solar heating systems, the function of which is derived from the difference between the sensor temperatures, one sensor determining the temperature of the collector and the other that of the water tank (see FIG. 2).

Der Erfindung liegt nun die Aufgabe zugrunde, einen Raumtemperatur­ regler für Flächenheizungen zu erstellen, der nach dem Prinzip des Zweipunktreglers mit je einem Fühler für Raum- und Flächen­ temperatur arbeitet, und zwar derart, daß die Abhängigkeit der Raum- und der Flächentemperatur der Funktion lt. Fig. 1 und damit zugleich der allgemein bekannten Behaglichkeitskurve ent­ spricht.The invention is based on the object to create a room temperature controller for surface heating, which works on the principle of the two-point controller, each with a sensor for room and surface temperature, in such a way that the dependence of the room and surface temperature of the function Fig. 1 and thus speaks the well-known comfort curve ent.

Die Lösung der der Erfindung zugrunde liegenden Aufgabe erfolgt durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale. Danach sind zur Messung des Istwertes ein erster Fühler zur Fest­ stellung der Raumtemperatur und ein zweiter Fühler zur Feststellung der Oberflächentemperatur in Reihe geschaltet, wobei eine gegen­ seitige Abhängigkeit zwischen Raumtemperatur und Oberflächen­ temperatur durch geeignete Wahl der Verhältnisse der Fühlerwider­ stände zueinander hergestellt wird. Maßgebend dabei ist, daß die gegenseitige Abhängigkeit zwischen Raumtemperatur und Ober­ flächentemperatur der Formel, wie in Anspruch 2 angegeben, entspricht. The object on which the invention is based is achieved by the features specified in the characterizing part of claim 1. After that, a first sensor is fixed to measure the actual value Setting the room temperature and a second sensor to determine the surface temperature connected in series, one against mutual dependence between room temperature and surfaces temperature by suitable selection of the ratios of the sensors stands are made to each other. The decisive factor is that the interdependency between room temperature and upper surface temperature of the formula as stated in claim 2, corresponds.  

Besondere Vorteile bei dieser Anordnung der vorbezeichneten Art ergeben sich noch dadurch, daß durch die Reihenschaltung eines Potentiometers zu den beiden Fühlern eine Verschiebung der Kurve längs der (X)-Achse erfolgt.Particular advantages in this arrangement of the type mentioned above result from the fact that the series connection of a potentiometer to the two sensors results in a shift of the curve along the (X) axis.

Einzelheiten der Erfindung sind an einem bevorzugten Ausführungsbei­ spiel der Zeichnungen erläutert, wobei die Fig. 1 und 2, wie schon angedeutet, den Erkenntnissen eines vorbekannten Standes der Technik entsprechen, während die Fig. 3 und 4 jeweils ein Blockschaltbild aufzeigen, welches in der Anordnung der Komponenten den erfindungsgemäßen Raumtemperaturregler entspricht.Details of the invention are illustrated in a preferred exemplary embodiment of the drawings, wherein FIGS. 1 and 2, as already indicated, correspond to the knowledge of a prior art, while FIGS. 3 and 4 each show a block diagram, which in the arrangement of the components corresponds to the room temperature controller according to the invention.

Wie sich aus Fig. 2 weiter ergibt, wird die Differenz der Temperaturen an den Fühlern R ϑ 1 und R ϑ 2 durch einen Komparator ausgewertet, der als Zweipunktregler wirkt und die Last z.B. über ein oder über mehrere Relais schaltet.As can further be seen from FIG. 2, the difference in temperatures at sensors R ϑ 1 and R ϑ 2 is evaluated by a comparator which acts as a two-point controller and switches the load, for example, via one or more relays.

Im Gegensatz zu Fig. 2 verdeutlicht das Blockschaltbild gemäß Fig. 3 die Anordnung der Fühler R ϑ o und R ϑ u.In contrast to FIG. 2, the block diagram according to FIG. 3 illustrates the arrangement of the sensors R ϑ o and R ϑ u .

Die Gleichung aus Fig. 1 stellt sich dann ein, wenn der Fühler der Oberflächentemperatur R ϑ o den halben Widerstandswert des Raumtemperaturfühlers R ϑ u bei gleichen Temperaturen ϑ o und u aufweist. Für den Raumtemperaturfühler R ϑ u verwendet man in idealer Weise die gleichen Widerstandsfühler wie bei dem Oberflächen­ fühler R ϑ o. Dabei sind für den Raumtemperaturfühler zwei Fühlerele­ mente in Reihe geschaltet, so daß die aus Fig. 1 ersichtliche Darstellung vorteilhaft verwirklicht wird. Dies hat ferner den besonderen Vorteil, daß die Kennlinien der Widerstandselemente optimal zusammenpassen.The equation from FIG. 1 arises when the sensor of the surface temperature R ϑ o has half the resistance value of the room temperature sensor R ϑ u at the same temperatures ϑ o and u . For the room temperature sensor R θ and using the same RTD as the sensor surfaces R θ o perfectly. Here, two Fühlerele elements are connected in series for the room temperature sensor, so that the view shown in FIG. 1 is advantageously realized. This also has the particular advantage that the characteristic curves of the resistance elements fit together optimally.

Aus dem Blockschaltbild gemäß Fig. 4 ist eine einfache Möglichkeit der Anpassung der Behaglichkeitskurve nach Fig. 1 an die indi­ viduellen Erfordernisse des Verbrauchers ersichtlich. Das in Reihe zu den Fühlern R ϑ o und R ϑ u liegende Potentiometer R p bewirkt eine parallele Verschiebung der Behaglichkeitskurve nach Fig. 1. From the block diagram of FIG. 4 is a simple way of adjusting the comfort curve of FIG. 1 can be seen to the indi vidual requirements of the consumer. The potentiometer R p lying in series with the sensors R ϑ o and R ϑ u causes a parallel displacement of the comfort curve according to FIG. 1.

Im übrigen kann auch für die Regelung ein normaler Zweipunktregler verwendet werden, wobei der Sollwert fest eingestellt werden kann (in Fig. 3 durch einen Widerstandsteiler dargestellt).Otherwise, a normal two-point controller can also be used for the control, the setpoint being able to be set permanently (represented by a resistance divider in FIG. 3).

Durch geeignete Wahl der Widerstandswerte der Fühler können beliebige Stufen der Anpassung Δ ϑ/Δ j o an einen bestimmten Behaglichkeits­ bereich erzielt werden (Fig. 1).By suitable selection of the resistance values of the sensors, any level of adaptation Δ ϑ / Δ j o to a certain comfort range can be achieved ( FIG. 1).

Claims (7)

1. Auf Behaglichkeitswirkung ausgelegter Raumtemperaturregler für Flächenheizungen, dier nach dem Prinzip des Zweipunktreglers arbeitet, dadurch gekennzeichnet, daß zur Messung des Istwertes ein erster Fühler R ϑ u zur Feststellung der Raumtemperatur u und ein zweiter Fühler R ϑ o zur Feststellung der Oberflächen­ temperatur o Reihe geschaltet sind, wobei durch geeignete Wahl der Verhältnisse der Fühlerwiderstände zueinander eine gegenseitige Abhängigkeit zwischen Δ ϑ u und Δ ϑ o hergestellt wird.1. Comfortable room temperature controller for surface heating, which works on the principle of the two-point controller, characterized in that a first sensor R ϑ u to determine the room temperature u and a second sensor R ϑ o to determine the surface temperature o row for measuring the actual value are switched, a mutual dependency between Δ ϑ u and Δ ϑ o being produced by a suitable choice of the ratios of the sensor resistances to one another. 2. Raumtemperaturregler nach Anspruch 1, dadurch gekennzeichnet, daß die gegenseitige Abhängigkeit zwischen Δ ϑ u und Δ ϑ o der Formel Δ ϑu/Δ ϑ o = 1/2 entspricht.2. Room temperature controller according to claim 1, characterized in that the mutual dependence between Δ ϑ u and Δ ϑ o corresponds to the formula Δ ϑ u / Δ ϑ o = 1/2. 3. Raumtemperaturregler nach Anspruch 1 und 2, dadurch gekenn­ zeichnet, daß durch die Reihenschaltung eines Potentiometers R p zu den beiden Fühlern R ϑ u und R ϑ o eine Verschiebung der Kurve längs der (X)-Achse erfolgt.3. Room temperature controller according to claim 1 and 2, characterized in that there is a shift of the curve along the (X) axis by the series connection of a potentiometer R p to the two sensors R läng u and R ϑ o . 4. Raumtemperaturregler nach Anspruch 1 bis 3, dadurch gekenn­ zeichnet, daß der Sollwert des Zweipunktreglers fest eingestellt ist.4. Room temperature controller according to claim 1 to 3, characterized records that the setpoint of the two-point controller is fixed is. 5. Raumtemperaturregler nach Anspruch 1 bis 4, dadurch gekenn­ zeichnet, daß zur Festeinstellung des Sollwertes das Potentio­ meter R p durch einen Festwiderstand ersetzt wird.5. Room temperature controller according to claim 1 to 4, characterized in that for the fixed setting of the setpoint, the potentiometer R p is replaced by a fixed resistor. 6. Raumtemperaturregler nach Anspruch 1 und einem der folgenden 2-5, dadurch gekennzeichnet, daß durch geeignete Wahl der Widerstandswerte der Fühler R ϑ u und R ϑ o beliebige Stufen der Anpassung Δ ϑ/Δ ϑ an einen bestimmten Behaglichkeitsbereich erzielt werden (Fig. 1).6. Room temperature controller according to claim 1 and one of the following 2-5, characterized in that any suitable stages of adaptation Δ ϑ / Δ ϑ to a certain comfort range can be achieved by suitable selection of the resistance values of the sensors R ϑ u and R ϑ o ( FIG. 1). 7. Raumtemperaturregler nach Anspruch 1 und 2 , dadurch gekenn­ zeichnet, daß der Raumtemperaturfühler R ϑ u aus zwei Fühler­ elementen - wie R ϑ o - zugesammengesetzt ist, die in Reihe geschaltet sind.7. Room temperature controller according to claim 1 and 2, characterized in that the room temperature sensor R ϑ u from two sensor elements - such as R ϑ o - is assembled, which are connected in series.
DE3807021A 1988-03-04 1988-03-04 Room temperature controller designed to have a comforting (cosiness) effect Ceased DE3807021A1 (en)

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Application Number Priority Date Filing Date Title
DE3807021A DE3807021A1 (en) 1988-03-04 1988-03-04 Room temperature controller designed to have a comforting (cosiness) effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3807021A DE3807021A1 (en) 1988-03-04 1988-03-04 Room temperature controller designed to have a comforting (cosiness) effect

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DE3807021A1 true DE3807021A1 (en) 1989-09-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103801A1 (en) * 1991-02-08 1992-08-13 Draegerwerk Ag Neonatal incubator heater control limiting body temp. gradient - is accompanied by audible warning of uncomfortable local temp., or excessive difference between core and periphery
WO2001007844A1 (en) * 1999-07-22 2001-02-01 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Comfort sensor
DE102004046689B3 (en) * 2004-09-24 2006-06-14 Danfoss A/S Space heating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778993A1 (en) * 1967-06-29 1971-09-23 Husqvarna Vapenfabriks Ab Control device for heaters
DE2247394A1 (en) * 1972-09-27 1974-04-18 Siemens Ag THERMOSTAT WITH A TEMPERATURE SENSOR PROVIDED TO DETERMINE THE THERMOSTAT TEMPERATURE
DE3323568A1 (en) * 1983-06-30 1985-01-10 Bayerische Motoren Werke AG, 8000 München HEATING AND / OR AIR CONDITIONING FOR MOTOR VEHICLES
DE3310367C2 (en) * 1983-03-22 1986-07-17 Viessmann Werke Kg, 3559 Allendorf Method and device for individual room temperature control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778993A1 (en) * 1967-06-29 1971-09-23 Husqvarna Vapenfabriks Ab Control device for heaters
DE2247394A1 (en) * 1972-09-27 1974-04-18 Siemens Ag THERMOSTAT WITH A TEMPERATURE SENSOR PROVIDED TO DETERMINE THE THERMOSTAT TEMPERATURE
DE3310367C2 (en) * 1983-03-22 1986-07-17 Viessmann Werke Kg, 3559 Allendorf Method and device for individual room temperature control
DE3323568A1 (en) * 1983-06-30 1985-01-10 Bayerische Motoren Werke AG, 8000 München HEATING AND / OR AIR CONDITIONING FOR MOTOR VEHICLES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103801A1 (en) * 1991-02-08 1992-08-13 Draegerwerk Ag Neonatal incubator heater control limiting body temp. gradient - is accompanied by audible warning of uncomfortable local temp., or excessive difference between core and periphery
WO2001007844A1 (en) * 1999-07-22 2001-02-01 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Comfort sensor
DE19983520B4 (en) * 1999-07-22 2004-11-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Air conditioning control sensor
DE102004046689B3 (en) * 2004-09-24 2006-06-14 Danfoss A/S Space heating device
US7669775B2 (en) 2004-09-24 2010-03-02 Danfoss A/S Room heating system

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