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DE3334434A1 - Heating cushions having two heating circuits for switching stages I-III - Google Patents

Heating cushions having two heating circuits for switching stages I-III

Info

Publication number
DE3334434A1
DE3334434A1 DE19833334434 DE3334434A DE3334434A1 DE 3334434 A1 DE3334434 A1 DE 3334434A1 DE 19833334434 DE19833334434 DE 19833334434 DE 3334434 A DE3334434 A DE 3334434A DE 3334434 A1 DE3334434 A1 DE 3334434A1
Authority
DE
Germany
Prior art keywords
heating
heating circuit
circuit
stage
main
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.)
Withdrawn
Application number
DE19833334434
Other languages
German (de)
Inventor
Claus 6467 Hasselroth Hackemann
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.)
Bauerhin I G Elektro Tech
IG Bauerhin GmbH
Original Assignee
Bauerhin I G Elektro Tech
IG Bauerhin 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 Bauerhin I G Elektro Tech, IG Bauerhin GmbH filed Critical Bauerhin I G Elektro Tech
Priority to DE19833334434 priority Critical patent/DE3334434A1/en
Publication of DE3334434A1 publication Critical patent/DE3334434A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029—Heaters specially adapted for seat warmers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/037—Heaters with zones of different power density

Landscapes

  • Central Heating Systems (AREA)

Abstract

The invention relates to a heating cushion having two heating circuits and three switching stages, in which at least the main heating circuit is equipped with directly controllable thermo-regulators, and in which the main heating circuit is connected in series with an additional heating circuit in switching stage I, the main heating circuit is connected in series with an additional heating circuit after having its heating power reduced by half by a diode in switching stage II, and the [lacuna] is connected in series with an additional heating circuit while maintaining the diode prearrangement, in switching stage I. Known heating cushions have the disadvantage that, in the case of a highly insulating, covering overlay, for example a bed cover, the emission from the heating cushion is less in switching stage I than the heating power is, that is to say the cushion continues to heat until the regulators in the main heating circuit switch, as a result of which the maximum surface temperature is produced in stage I. It is desirable in every case, even in the case of incorrect use, that the lowest heating of the surface is always produced in heating stage I. The solution according to the invention provides that two thermo-regulators 4, which are arranged in the main circuit 2, are provided for the three switching stages I-III, which thermo-regulators 4 are permanently connected to the additional heating circuit 3, as additional heating 5, in a heat-conducting manner in switching stage I. As a result of the duplicated heating of the thermo-regulator 4 by the two heating circuits, overheating is prevented even in stage I. <IMAGE>

Description

"Heizkissen mit zwei Heizkreisen für Schalt-"Heating pad with two heating circuits for switching

stufen IIII" Die Erfindung betrifft ein Heizkissen mit zwei Heizkreisen für Schaltstufen I-III und mehreren, zumindest den Hauptheizkreis unmittelbar steuernden Thermoreglern, bei dem a) in der Schaltstufe III der Hauptheizkreis in vollem Umfang so lange wärmewirksam ist, bis die durch Temperaturerhöhung über den zulässigen Sollwert hinaus zumindest ein der im Hauptheizkreis angeordneten Thermoregler den Hauptheizkreis so lange ausschaltet, bis - bedingt durch den Temperaturabfall - erneut Einschaltimpuls gegeben wird; b) in der Schaltstufe II durch Vorschalten einer Diode die Heizleistung halbiert wird und bei dem c) in Schaltstufe I dem Hauptheizkreis ein zweiter Heizkreis mit etwa halbem Widerstand als Zusatzkreis - bei Beibehaltung der Diodenvorordnung -in Reihe verbunden ist. level IIII " The invention relates to a heating pad with two heating circuits for switching levels I-III and several, at least the main heating circuit directly controlling thermoregulators, in which a) the main heating circuit in switching stage III is fully heat-effective until the temperature increase over the admissible setpoint in addition to at least one of those arranged in the main heating circuit The thermoregulator switches off the main heating circuit until - due to the temperature drop - the switch-on pulse is given again; b) in switching stage II by connecting upstream a diode, the heating power is halved and with the c) in switching stage I the main heating circuit a second heating circuit with about half the resistance as an additional circuit - if retained the diode array is connected in series.

Unabhängig.von diesem z.Zt. aktuellsten Stand der Technik in der Heizkissenherstellung, der seit mehreren Jahren genutzt und durch den Verlegungs- und Stromlaufplan des IGB-Heizkissen, Typ T 50, der Anmelderin Abnehmern gegenüber ausgewiesen wird, soll kurz auf die Historie dieser Entwicklung eingegangen werden.Regardless of this currently state-of-the-art technology in the manufacture of heating pads, which has been used for several years and is supported by the layout and circuit diagram of the IGB heating pad, type T 50, which is reported to the applicant for customers The history of this development will be briefly discussed.

Heizkissen mit Drei-Stufenschaltungen sind seit mehr als 50 Jahren Stand der Technik.Heating pads with three-stage switching have been around for more than 50 years State of the art.

Ublicherweise wird die Abstufunq der Heizleitung dadurch erreicht, daß die Heizkissen zwei Heizkreise mit in der Regel gleicher Wattleistung haben, bei denen in der Stufe III beide Heizkreise parallel, in Stufe II nur ein Heizkreis und in Stufe I beide hintereinander dem üblichen Wechselstromnetz verbunden sind.Usually, the grading of the heating tape is achieved by that the heating pads have two heating circuits with usually the same wattage, where in stage III both heating circuits are parallel, in stage II only one heating circuit and in stage I both are connected one behind the other to the usual alternating current network.

Dies ergibt in Stufe III die volle Leistung, in Stufe II die halbe Leistung und durch die bei hintereinander geschalteten Heizkreisen gegebene Verkoppelung des Widerstandes in Stufe I nur ein viertel der Heizleistung von Stufe III.This results in full performance in stage III and half in stage II Output and through the coupling given in the case of heating circuits connected in series the resistance in level I is only a quarter of the heating output in level III.

Es ist auch bekannt, daß aus Sicherheitsgründen zwei Thermoregler in j e d e m Heizkreis gewünscht werden, um zu gewährleisten, daß bei dem möglichen aber seltenen Ausfall eines Reglers in Form einer permanent gegebenen ukerbrUckung für den Strom eine Uberhitzung des Heizkissens durch den dann wirksam werdenden zweiten Regler verhindert wird.It is also known that, for safety reasons, two thermal regulators in each of the heating circuits to ensure that the possible but rare failure of a controller in the form of a permanently given backup for the current an overheating of the heating pad by the then taking effect second regulator is prevented.

Die Anordnung von zwei Reglern in jedem Stromkreis ist aufwendig und damit kostspielig.The arrangement of two controllers in each circuit is complex and thus costly.

Dies führte zu dem in der Praxis ebenfalls teilweise realisierten Gedanken, durch Vorschalten einen dritten Regler vor der Verteilung für die beiden Heizkreise vorzusehen.This led to what was also partially realized in practice Thoughts by adding a third regulator in front of the distribution for the two Provide heating circuits.

So viel zum Stand der Technik.So much for the state of the art.

Alle diese Schaltungen bewirken durch das Herunterschalten auf die kleineren Heizstufen eine Reduzierunq der Heizleistunq, verbunden mit einer Herabsetzung der Oberflächentemperatur des Heizkissens, sofern eine besondere Wärmedämmung, z.B. durch die vollständige Abdeckung eines nicht benutzten Bettes, mittels einer mit Federn oder dgl. gefüllten Bettdecke gegeben i5t.- In einem so abgedeckten Heizkissen wird dessen Abstrahlung,auch in Stufe I, immer qeringer als die Heizleistung sein, d.h., daß Kissen heizt weiter bis die Regler schalten.All of these shifts effect by downshifting on the lower heating levels a reduction of the heating power, combined with a decrease the surface temperature of the heating pad, if special thermal insulation, e.g. by completely covering an unused bed by means of a with Feathers or the like filled blanket given i5t.- In a heating pad covered in this way its radiation, even in level I, will always be less than the heating output, i.e. that the pillow continues to heat until the regulators switch.

In diesen Fällen bestimmt also allein der Thermoregler bzw. dessen Beheizung die Temperatur des Heizkissens.In these cases, the thermoregulator or its control alone determines Heat the temperature of the heating pad.

Dies bedeutetinsofern ein nicht naheliegendes Ergebnis, als nämlich in den zur Stufe I genannten Schaltungsmöglichkeiten immer die höchste Oberflächentemperatur des Heizkörpers dann entsteht, wenn der Thermoregler am wenigsten beheizt wird und erst dann schaltet, wenn sich das ganze Kissen auf die Schalttemperatur erwärmt hat.This means a non-obvious result in that viz always the highest surface temperature in the circuit options mentioned for level I. of the radiator occurs when the thermoregulator is heated the least and only switches when the entire cushion warms up to the switching temperature Has.

Eine solche Situation stellt sich zwar nur bei einem beispielsweise bereits beschriebenen unsachgemäßen Gebrauch ein, der jedoch in keinem Fall wünschenswert ist.Such a situation only arises with one example improper use described above, which is in no way desirable is.

Dies berücksichtigend ist es Aufgabe dieser Erfindung, ein Heizkissen nach der eingangs genannten Art zu beschreiben, dessen Konzeption in jedem Fall eine bei Heizstufe I geringste Erwärmung sichert.With this in mind, it is the object of this invention to provide a heating pad to describe in the manner mentioned at the beginning, its conception In any case, the lowest level of warming is ensured at heating level I.

Die erfindungsgemäße Lösung dieser Aufgabe sieht vor, daß für die drei Schaltstufen 1-1 II zwei im Hauptheizkreis angeordnete Thermoregler vorgesehen sind, die wärmeführend in Schaltstufe I mit dem Zusatzheizkreis als Zusatzheizung permanent verbunden sind.The inventive solution to this problem provides that for three switching stages 1-1 II two thermoregulators arranged in the main heating circuit are provided that conduct heat in switching stage I with the additional heating circuit as additional heating are permanently connected.

Die im Hauptheizkreis angeordneten und diesen kontrollierend schaltenden Thermoregler erfahren also immer durch die Reihenverbindung des Hauptheizkreises mit dem Zusatzheizkreis in Stufe I eine doppelte Beheizung.The ones arranged in the main heating circuit and switching it in a controlling manner So thermoregulators always learn from the series connection of the main heating circuit double heating with the additional heating circuit in stage I.

Ergänzend ist noch festzuhalten, daß die Zusatzheizung elektrisch isolierend gegen die Thermoregler und gegen den Hauptheizkreis ausgebildet ist.In addition, it should be noted that the auxiliary heating is electrical is designed to be insulating against the thermoregulator and against the main heating circuit.

Die Erfindung wird durch die beigefügte zeichnerische Darstellung einer beispielsweisen Ausbildung eines Heizkissens näher erläutert.The invention is illustrated by the accompanying drawings an exemplary formation of a heating pad explained in more detail.

In dem Heizkissen 1 ist der Hauptheizkreis 2 über dem Heizkissengrundriß so verlegt, daß in Verbindung mit dem ausgelegten Zusatzheizkreis 3 eine weitgehend abstandsgleiche Verteilung der Heizleiter über die Heizfläche gegeben ist.In the heating pad 1, the main heating circuit 2 is above the heating pad outline laid so that in connection with the designed additional heating circuit 3 a largely evenly spaced distribution of the heating conductors over the heating surface is given.

In Schaltstufe III wird, wie erwähnt, der Hauptheizkreis 2 voll beheizt, während in Schaltstufe II, und zwar mittels Vorschaltung einer üblicherweise in den Stufenschalter integrierten Diode, durch Abschneiden einer Halbwelle des Wechselstromes die Heizleistung halbiert wird.In switching stage III, as mentioned, the main heating circuit 2 is fully heated, while in switching stage II, by means of an upstream connection, usually in the step switch integrated diode by cutting off a half-wave of the alternating current the heating power is halved.

Die Heizstufe I sieht die Reihenverbindung des Hauptheizkreises 2 mit dem Zusatzheizkreis 3 vor, wobei die durch die in den beiden im Hauptheizkreis 2 angeordneten Thermoregler 4 jeweils eine durch diesen nicht unterbrechbaren Schleife des Zusatzheizkreises 3, - die die Zusatzheizung 5 bildet - permanent beheizt werden.Heating stage I sees the series connection of main heating circuit 2 with the additional heating circuit 3, whereby the through the in the two in the main heating circuit 2 arranged thermal controller 4 each have a loop that cannot be interrupted by this of the additional heating circuit 3 - which forms the additional heating 5 - are permanently heated.

Diese Beheizung 5 gewährleistet,daß sich unabhängig von.dem Vorhanden- oder Nichtvorhandensein einer isolierenden Abdeckung in der Heizstufe I immer die niedrigste Oberflächentemperatur des Heizkissens 1 einstellt.This heating 5 ensures that regardless of the presence or the absence of an insulating cover in heating level I always the sets the lowest surface temperature of heating pad 1.

Claims (2)

Patentansprüche (1. Heizkissen mit zwei Heizkreisen für Schaltstufen I-III und mehreren, zumindest den Hauptheizkreis unmiuelbar steuernden Thermoreglern, bei dem a) in der Schaltstufe III der Hauptheizkreis in vollem Umfang so lange wärmewirksam ist, bis die durch Temperaturerhöhung über den zulässigen Sollwert hinaus zumindest ein der im Hauptheizkreis angeordneten Thermoregler den Hauptheizkreis so lange ausschaltet, bis - bedingt durch den Temperaturabfall - erneut Einschaltimpuls gegeben wird; b) in der Schaltstufe II durch Vorschalten einer Diode die Heizleistung halbiert wird und bei dem c) in Schaltstufe I dem Hauptheizkreis ein zweiter Heizkreis mit etwa halbem Widerstandswert als Zusatzheizkreis - bei Beibehaltung der Diodenvorordnung - in Reihe verbunden ist, dadurch gekennzeichnet, d a ß für die drei Schaltstufen 1-1 II zwei im Hauptheizkreis (2) angeordneten Thermoregler (4) vorgesehen sind, die wärmeführend in Schaltstufe I mit dem Zusatzheizkreis (3) als Zusatzheizung (5) permanent verbunden sind. Claims (1. heating pad with two heating circuits for switching levels I-III and several thermoregulators that directly control at least the main heating circuit, with a) in switching stage III the main heating circuit is fully heat-effective for as long is until the temperature rise above the permissible setpoint at least one of the thermal controllers in the main heating circuit will control the main heating circuit for as long switches off until - due to the drop in temperature - the switch-on pulse is given again will; b) in switching stage II, halving the heating power by connecting a diode is and with the c) in switching stage I the main heating circuit with a second heating circuit about half the resistance value as an additional heating circuit - while retaining the pre-arrangement of the diodes - Is connected in series, characterized in that d a ß for the three switching stages 1-1 II two thermoregulators (4) arranged in the main heating circuit (2) are provided, the heat transferring in switching stage I with the additional heating circuit (3) as additional heating (5) are permanently connected. 2. Heizkissen nach Anspruch 1, dadurch gekennzeichnet, d a ß die Zusatzheizung (5) elektrisch isolierend gegen die Thermoregler (4) und gegen den Hauptheizkreis (2) ausgebildet ist.2. Heating pad according to claim 1, characterized in that the additional heater d a ß (5) electrically isolating from the thermoregulator (4) and from the main heating circuit (2) is formed.
DE19833334434 1983-09-23 1983-09-23 Heating cushions having two heating circuits for switching stages I-III Withdrawn DE3334434A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833334434 DE3334434A1 (en) 1983-09-23 1983-09-23 Heating cushions having two heating circuits for switching stages I-III

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833334434 DE3334434A1 (en) 1983-09-23 1983-09-23 Heating cushions having two heating circuits for switching stages I-III

Publications (1)

Publication Number Publication Date
DE3334434A1 true DE3334434A1 (en) 1985-04-11

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DE19833334434 Withdrawn DE3334434A1 (en) 1983-09-23 1983-09-23 Heating cushions having two heating circuits for switching stages I-III

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DE (1) DE3334434A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033667A1 (en) * 1989-10-25 1991-05-02 Ngk Insulators Ltd Oxygen concn. sensor for gas mixt. has heater - operable at two different potentials to minimise preparation time
US5352862A (en) * 1992-11-09 1994-10-04 Five Star Manufacturing Company High wattage surface contact resistance heater
US5412181A (en) * 1993-12-27 1995-05-02 The B. F. Goodrich Company Variable power density heating using stranded resistance wire
DE10203197A1 (en) * 2002-01-25 2003-08-07 Beurer Gmbh & Co Electrically heated heating device with a flexible radiator
DE102013018155A1 (en) * 2013-12-05 2015-06-11 Hemstedt GmbH Electric heating device, in particular underfloor heating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122650A (en) * 1937-10-15 1938-07-05 Samson United Corp Electric heating pad
US2237852A (en) * 1940-11-20 1941-04-08 William Bradford Three-heat pad
US2425686A (en) * 1945-09-22 1947-08-12 Lobl Mfg Company Thermostatic control of electric heating pads
CH464319A (en) * 1967-03-23 1968-10-31 Solis App Fabriken Ag Bimetal switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122650A (en) * 1937-10-15 1938-07-05 Samson United Corp Electric heating pad
US2237852A (en) * 1940-11-20 1941-04-08 William Bradford Three-heat pad
US2425686A (en) * 1945-09-22 1947-08-12 Lobl Mfg Company Thermostatic control of electric heating pads
CH464319A (en) * 1967-03-23 1968-10-31 Solis App Fabriken Ag Bimetal switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-B.: Kurt Eicht: Elektrische Hausgeräte 5. Aufl. 1978, Girardet Essen, S. 268-270 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033667A1 (en) * 1989-10-25 1991-05-02 Ngk Insulators Ltd Oxygen concn. sensor for gas mixt. has heater - operable at two different potentials to minimise preparation time
US5352862A (en) * 1992-11-09 1994-10-04 Five Star Manufacturing Company High wattage surface contact resistance heater
US5412181A (en) * 1993-12-27 1995-05-02 The B. F. Goodrich Company Variable power density heating using stranded resistance wire
DE10203197A1 (en) * 2002-01-25 2003-08-07 Beurer Gmbh & Co Electrically heated heating device with a flexible radiator
DE102013018155A1 (en) * 2013-12-05 2015-06-11 Hemstedt GmbH Electric heating device, in particular underfloor heating

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