DE2941330A1 - Through-flow hot water heater - has switched identical heating elements and manual power rating reduction switch - Google Patents

Through-flow hot water heater - has switched identical heating elements and manual power rating reduction switch

Info

Publication number
DE2941330A1
DE2941330A1 DE19792941330 DE2941330A DE2941330A1 DE 2941330 A1 DE2941330 A1 DE 2941330A1 DE 19792941330 DE19792941330 DE 19792941330 DE 2941330 A DE2941330 A DE 2941330A DE 2941330 A1 DE2941330 A1 DE 2941330A1
Authority
DE
Germany
Prior art keywords
water heater
heating elements
hot water
switched
power rating
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.)
Granted
Application number
DE19792941330
Other languages
German (de)
Other versions
DE2941330C2 (en
Inventor
Günter Dipl.-Ing. 8225 Traunreut Steinkopf
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.)
BSH Hausgeraete GmbH
Original Assignee
Bosch Siemens Hausgerate 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 Bosch Siemens Hausgerate GmbH filed Critical Bosch Siemens Hausgerate GmbH
Priority to DE2941330A priority Critical patent/DE2941330C2/en
Publication of DE2941330A1 publication Critical patent/DE2941330A1/en
Application granted granted Critical
Publication of DE2941330C2 publication Critical patent/DE2941330C2/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices
    • F24H9/2007Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2028Continuous-flow heaters

Abstract

The water heater uses similar heating elements (r1,r2,r3), which can be coupled to the supply network in various combinations corresponding to different power ratings, via a selector switch. A manual switch (7) is connected in circuit with one of the heating elements (r3), which can be opened to reduce the selected power rating. Three resistive heating elements (r1,r2,r3) are connected in a triangle, with each corner coupled to a respective phase load (R,T,S) with switching stages (4,5) inserted in two of these (T,S). The manual switch (7) is in series with a heating element (r3) coupled between the remaining phase lead (R) and one of the switched phase leads (S). The switching stages (4,5) may be successively switched by an operating element (6) comprising a venturi valve and a differential press membrane.

Description

Elektrischer Heißwasserbereiter, insbesondere DurchlauferhitzerElectric hot water heaters, in particular instantaneous water heaters

Die Erfindung geht aus von einem elektrischen HeiBwasserbereiter, insbesondere einem Durchlauferhitzer mit mehreren Heizwiderständen, die in unterschiedlicher Kombination entsprechend mehreren, durch einen Schalter anwählbaren Leistungsstufen an ein Stromnetz anschlleßbar sind, wobei im Stromkreis wenigstens eines Heizwiderstandes ein manuell betätigharer Leistungsschalter liegt, durch dessen Öffnung die angewählte Leistung reduzierbar ist.The invention is based on an electric hot water heater, in particular a water heater with several heating resistors, which are in different Combination according to several power levels that can be selected using a switch can be connected to a power supply, with at least one heating resistor in the circuit there is a manually operated circuit breaker, through the opening of which the selected one is located Performance is reducible.

Bei einem derartigen bekannten Durchlauferhitzer mit zwei durch einen Strömungsschalter auswahlbaren Leistungsstufen sind die Heizwiderstände in Sternschaltung an das Stromnetz angeschaltet bzw. in unterschiedlicher Konstellation anschaltbar. Dabei liegen in einem Sternzweig zwei Teilwiderstände parallel zueinander, wobei einem dieser Teilwiderstände der Leistungsschalter vorgeschaltet ist. Hierbei wird entsprechend der Stellung des Leistungsschalters in beiden Stufen des Strömungsschalters eine Reduzierung der Heizleistung ermöglicht, allerdings eine Reduzierung, die in den beiden Leistungsstufen sehr unterschiedlich ist, z.B. in der Stufe i 33% und in der Stufe 2 20% beträgt.In such a known water heater with two by one The heating resistors in star connection are the power levels that can be selected for flow switches connected to the power grid or can be connected in different constellations. Two partial resistances are parallel to one another in a star branch, with the circuit breaker is connected upstream of one of these partial resistances. Here is according to the position of the circuit breaker in both stages of the flow switch allows a reduction in the heating power, however, a reduction that in The two performance levels are very different, e.g. in level i 33% and in level 2 is 20%.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen elektrischen Heißwasserbereiter, insbesondere einen elektrischen Durchlauferhitzer der eingangs genannten Art so zu verbessern, daß in allen Leistungsstufen eine prozentual gleiche Leistungsreduzierung ermöglicht wird.The present invention has for its object to provide an electrical Hot water heater, in particular an electric water heater of the initially to improve said type so that in all performance levels the same percentage Power reduction is made possible.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß einem der in Dreieckschaltung liegenden Heizwiderstände der Leistungsschalter in Reihe vorgeschaltet ist. Vorzugsweise liegt dabei der Leistungsschalter in einem der in der zweiten, erhöhten Leistungsstufe an das Stromnetz anschaltbaren Dreieckszweige. Auf diese Weise wird in allen, z.B. in den beiden Leistungsstufen durch Betätigen des Leistungsschalters eine Reduzierung der jeweiligen Heizleistung um denselben prozentualen Wert, z.B. um ein Drittel ermöglicht.This object is achieved according to the invention in that one of the The circuit breakers are connected in series upstream of the heating resistors in delta connection is. The circuit breaker is preferably located in one of the triangular branches that can be connected to the power grid. To this Way is in all, e.g. in the two power levels by pressing the circuit breaker a reduction of the respective heating power by the same percentage value, e.g. made possible by a third.

Die Erfindung ist anhand eines in der Zeichnung dargestellten schematischen Ausführungsbeispieles nachstehend erläutert.The invention is based on a schematic shown in the drawing Embodiment explained below.

Die Zeichnung zeigt die prinzipielle Schaltung eines erfindungsgemäßen elektrischen Durchlauferhitzers, der an ein Drehstromnetz mit den Anschlüssen R, S und T anschließbar ist, wobei die Phase R nicht geschaltet zu werden braucht. Dabei sind drei gleiche Heizwiderstände rl, r2 und r3 in drei Dreieckszweigen i, 2 und 3 innerhalb einer Dreieckschaltung angeordnet.The drawing shows the basic circuit of an inventive electric water heater, which is connected to a three-phase network with the connections R, S and T can be connected, the phase R not needing to be switched. There are three equal heating resistors rl, r2 and r3 in three triangular branches i, 2 and 3 arranged within a delta connection.

Die Stufenschalter 4 und 5 liegen an den Netzphasen S und T des Drehstromnetzes. Die Betätigung der nacheinander schaltbaren Stufenschalter 4 und 5 erfolgt über ein Betätigungsorgan 6, das in nicht näher dargestellter Weise aus einer wasserdurchflossenen Venturidüse und einer Druckdifferenzmembrandose bestehen kann. Im Dreieckszweig 3, oder aber im Dreieckszweig 2, ist dem betreffenden Heizwiderstand r3 ein von Hand betätigbarer Leistungsschalter 7 vorgeschaltet. Durch das Vorhandensein dieses Leistungsschalters 7 sind beim Ausführungsbeispiel folgende Schaltmöglichkeiten gegeben: a) In Lesistungsstufe I (Stufenschalter 4 geschlossen) ist bei geselwlossenem Leistungsschalter 7 1/2 der gesamten installierten Leistung gegeben.The step switches 4 and 5 are connected to the network phases S and T of the three-phase network. The step switches 4 and 5, which can be switched one after the other, are operated via an actuator 6, which in a manner not shown from a water-flowed Venturi nozzle and a pressure differential diaphragm can exist. In the triangle branch 3, or in the triangular branch 2, is the relevant heating resistor r3 a of Manually operated circuit breaker 7 connected upstream. By the presence of this Circuit breaker 7 are the following switching options in the embodiment given: a) In output level I (step switch 4 closed) is 7 1/2 of the total installed power with the circuit breaker closed given.

b) In Leistungsstufe 1 ist bei geöffnetem Leistungsschalter 7 1/3 der Gesamtleistung gegeben. b) In power level 1, with the circuit breaker open, 7 is 1/3 given the overall performance.

c) ln Leistungsstufe II (Stufenschalter 4 und 5 geschlossen) ist bei geschlossenem Leistungsschalter 7 die gesamte installierte Heizleistung angeschaliet, während d) in Leistungsstufe II bei geöffnetem Leistungsschalter 7 2/3 der installierten Gesamtleistung angeschaltet ist. c) is in power level II (level switches 4 and 5 closed) when the circuit breaker 7 is closed, the entire installed heating power is connected, while d) in performance level II with the circuit breaker open 7 2/3 of the installed Total power is switched on.

In beiden Leistungsstufen besteht somit die Möglichkeit, die angewählte Heizleistung durch Betatigen des Leistungsschalters 7 um jeweils 1/3 zu reduzieren.In both performance levels there is therefore the option of using the selected Reduce the heating power by pressing the circuit breaker 7 by 1/3 each time.

2 Patentansprüche 1 Figur 2 claims 1 figure

Claims (2)

Patentansprüche 1. Elektrischer Heißwasserbereiter, insbesondere Durchlauferhitzer mit mehreren vorzugsweise gleichen Heizwiderständen, die in unterschiedlicher Kombination entsprechend mehreren durch einen Schalter anwählbaren Leistungsstufen an ein Stromnetz anschließbar sind, wobei im Stromkreis wenigstens eines Heizwiderstandes ein manuell betätigbarer Leistungsschalter liegt, durch dessen Öffnung die angewählte Leistung reduzierbar ist, d a d u r c h g e k e n n z e i c h n e t , daß einem der in Dreieckschaltung liegenden Heizwiderstände (rl, r2, r3) der Leistungsschalter (7) in Reihe vorgeschaltet ist. Claims 1. Electric water heater, in particular Water heater with several preferably the same heating resistors, which are in different Combination according to several power levels that can be selected by a switch can be connected to a power supply, with at least one heating resistor in the circuit there is a manually operated circuit breaker, through the opening of which the selected one is located Power is reducible, that is to say the delta heating resistors (rl, r2, r3) of the circuit breakers (7) is connected upstream in series. 2. Elektrischer Heißwasserbereiter nach Anspruch 1, dadurch eekennzrchret, daß der Leistungsschalter (7) in einem der in der zweiten, erhöhten Leistungsstufe an das Stromnetz (R, S, T) anschaltbaren Dreieckszweige (2 oder 3) liegt. 2. Electric hot water heater according to claim 1, characterized eekennzrchret, that the circuit breaker (7) in one of the second, increased power level triangular branches (2 or 3) that can be connected to the mains (R, S, T).
DE2941330A 1979-10-11 1979-10-11 Electric hot water heaters, in particular instantaneous water heaters Expired DE2941330C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2941330A DE2941330C2 (en) 1979-10-11 1979-10-11 Electric hot water heaters, in particular instantaneous water heaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2941330A DE2941330C2 (en) 1979-10-11 1979-10-11 Electric hot water heaters, in particular instantaneous water heaters

Publications (2)

Publication Number Publication Date
DE2941330A1 true DE2941330A1 (en) 1981-04-23
DE2941330C2 DE2941330C2 (en) 1986-10-02

Family

ID=6083306

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2941330A Expired DE2941330C2 (en) 1979-10-11 1979-10-11 Electric hot water heaters, in particular instantaneous water heaters

Country Status (1)

Country Link
DE (1) DE2941330C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018036687A1 (en) * 2016-08-25 2018-03-01 Robert Bosch Gmbh Method and control device for heating a device driven with a brushless direct current motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401842B (en) * 1988-03-09 1996-12-27 Vaillant Gmbh ELECTRICALLY HEATED CONTINUOUS WATER HEATER
DE3907435C2 (en) * 1988-03-15 1995-02-02 Vaillant Joh Gmbh & Co Electrically heated water heater
CH677854A5 (en) * 1989-01-05 1991-06-28 Vaillant Gmbh

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1615417A1 (en) * 1967-10-17 1970-06-18 Siemens Elektrogeraete Gmbh Electric hot water heater
DE1954987A1 (en) * 1969-10-31 1971-05-06 Siemens Elektrogeraete Gmbh Electric hot water heaters, especially water heaters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1615417A1 (en) * 1967-10-17 1970-06-18 Siemens Elektrogeraete Gmbh Electric hot water heater
DE1954987A1 (en) * 1969-10-31 1971-05-06 Siemens Elektrogeraete Gmbh Electric hot water heaters, especially water heaters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018036687A1 (en) * 2016-08-25 2018-03-01 Robert Bosch Gmbh Method and control device for heating a device driven with a brushless direct current motor
CN109769406A (en) * 2016-08-25 2019-05-17 罗伯特·博世有限公司 Method and control mechanism for being heated to the device driven with brushless d.c. motor
US10644640B2 (en) 2016-08-25 2020-05-05 Robert Bosch Gmbh Method and control device for heating a device with a brushless direct current motor
CN109769406B (en) * 2016-08-25 2022-10-14 罗伯特·博世有限公司 Method and control mechanism for heating a device driven by a brushless DC motor

Also Published As

Publication number Publication date
DE2941330C2 (en) 1986-10-02

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OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation