DE3903649C1 - Electric flow heater for liquids - Google Patents
Electric flow heater for liquidsInfo
- Publication number
- DE3903649C1 DE3903649C1 DE19893903649 DE3903649A DE3903649C1 DE 3903649 C1 DE3903649 C1 DE 3903649C1 DE 19893903649 DE19893903649 DE 19893903649 DE 3903649 A DE3903649 A DE 3903649A DE 3903649 C1 DE3903649 C1 DE 3903649C1
- Authority
- DE
- Germany
- Prior art keywords
- heater
- plastic
- metal
- tubular
- embedded
- 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.)
- Expired - Fee Related
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
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/58—Heating hoses; Heating collars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
Abstract
Description
Die Erfindung betrifft einen elektrischen Durchlauferhitzer ge mäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an electric water heater ge according to the preamble of claim 1.
Die Erfahrung hat gezeigt, daß es bei thermischen Überlastungen des Rohrheizkörpers derartiger, beispielsweise durch die EP-OS 2 87 772 bekanntgewordener Durchlauferhitzer, zu so hohen Tempe raturen kommen kann, daß der Kunststoffmantel verkohlt.Experience has shown that there is thermal overload the tubular heater such, for example, by the EP-OS 2 87 772 instantaneous water heater, at such a high temperature can come that the plastic jacket charred.
Man ging deshalb auch schon dazu über, wie die DE-OS 35 34 754 offenbart, den gewendelten Rohrheizkörper auf ein Chrom-Nickel- Stahlrohr aufzulöten, das den Durchflußkanal bildet. Bei dieser Ausführungsart tritt wohl keine thermische Überhitzung auf, doch ist der technische Aufwand bei der Herstellung derartiger Durch lauferhitzer relativ hoch und verteuert damit den Erhitzer ganz erheblich.One therefore went over to it, such as DE-OS 35 34 754 discloses the coiled tubular heater on a chrome-nickel Solder steel pipe that forms the flow channel. At this No thermal overheating occurs, however is the technical effort in the production of such through The heater is relatively high, making the heater more expensive considerably.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Durchlaufer hitzer für Flüssigkeiten zu schaffen, der die Vorteile der ko rosionsfesten und preiswerten Ausführungsart in Kunststoff auf weist, bei dem aber andererseits schädliche Überhitzungen insbe sondere der Kunststoffteile sicher vermieden werden.The present invention has for its object a pass to create a heater for liquids that takes advantage of knockout corrosion-resistant and inexpensive design in plastic points, but in particular harmful overheating special plastic parts can be safely avoided.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patent anspruchs 1 gelöst.This object is achieved through the characteristic features of the patent claim 1 solved.
Dieser neuartige Durchlauferhitzer ist mit nur geringem tech
nischem Mehraufwand herstellbar, korrosionsfest und relativ
preiswert, da die mittels der Metallumhüllung erzielte Abschir
mung der Kunststoffteile gegen den Heizkörper, es außerdem er
laubt, Kunststoffe mit geringerer Warmfestigkeit, also preiswer
tere Kunststoffe zu verwenden.
This novel instantaneous water heater can be produced with only little additional technical expenditure, is corrosion-resistant and relatively inexpensive, since the shielding of the plastic parts against the radiator achieved by means of the metal sheathing also allows it to use plastics with lower heat resistance, that is, cheaper plastics.
Der Gegenstand der Erfindung ist in einem Ausführungsbeispiel in der Zeichnung dargestellt und nachfolgend beschrieben.The object of the invention is in one embodiment shown in the drawing and described below.
Der dargestellte Durchlauferhitzer besteht aus einem gewen delten Rohrheizkörper 1 an sich bekannter Art, einer Blech manschette 2, die die Windungen 3 des Rohrheizkörpers 1 umgibt und aus einem Kunststoffmantel 4, in dem der Rohrheizkörper 1 mit der Blechmanschette 2 eingebettet sind.The water heater shown consists of a selected tubular heater 1 of a known type, a sheet metal sleeve 2 which surrounds the windings 3 of the tubular heater 1 and a plastic jacket 4 in which the tubular heater 1 with the sheet metal sleeve 2 are embedded.
Der Rohrheizkörper 1 ist mit zwei Anschlüssen 5 und 6 aus dem Kunststoffmantel herausgeführt. Die zum Anschluß des Durchlauf erhitzers erforderlichen Schlauchanschlüsse 7 und 8 sind un mittelbar am Kunststoffmantel angeformt.The tubular heater 1 is led out of the plastic jacket with two connections 5 and 6 . The hose connections 7 and 8 required to connect the continuous flow heater are molded directly onto the plastic jacket.
Bei der Herstellung des beschriebenen Durchlauferhitzers wird so vorgegangen, daß der gewendelte Rohrheizkörper 1 mit der Blechmanschette 2 umgeben und letztere mit dem Rohrheizkörper verpreßt wird, derart, daß die Blechmanschette 2 die Windungen 3 des Rohrheizkörpers 1 umschließt. Dieses derart vorgefertigte Bauteil 1, 2 wird nun in ein entsprechend ausgelegtes Kunststoff werkzeug eingesetzt und mit einem warmfesten Kunststoff um spritzt, so daß der in der Zeichnung ersichtliche Mantel 4 mit den Schlauchanschlüssen 7 und 8 entsteht.In the preparation of the water heater described the procedure is such that the helical tubular heating element 1 surrounded with the metal sleeve 2 and the latter is pressed with the heating element, such that the sheet sleeve 2 encloses the windings 3 of the tubular heater. 1 This prefabricated component 1, 2 is now used in a suitably designed plastic tool and injects with a heat-resistant plastic, so that the sheath 4 shown in the drawing with the hose connections 7 and 8 is formed.
Die durch die Blechmanschette 2 gebildete wesentliche Vergrö ßerung der Oberfläche des Rohrheizkörpers verhindert weitge hend eine thermische Überlastung des Kunststoffmantels 4. Die beiden Anschlußenden 7 und 8 des Erhitzers bleiben unbeheizt, so daß auch hier keine Überhitzung entstehen kann.The substantial enlargement of the surface of the tubular heater formed by the sheet metal sleeve 2 largely prevents thermal overloading of the plastic jacket 4 . The two connection ends 7 and 8 of the heater remain unheated, so that overheating cannot occur here either.
Wie schon erwähnt, können bei dieser erfindungsgemäßen Ausfüh rungsart des Erhitzers relativ preiswerte Kunststoffe einge setzt werden, was wiederum eine erhebliche Verbilligung des Erhitzers mit sich bringt.As already mentioned, in this embodiment according to the invention type of heating relatively inexpensive plastics be set, which in turn significantly reduces the cost of the Heater brings with it.
Für die Anbringung eines Reglers, oder Temperaturbegrenzers 9 am Durchlauferhitzer ist ein Metallbügel 10, der unmittelbaren Kontakt hat mit dem Rohrheizkörper 1, mit in den Kunststoffman tel 4 eingespritzt.For the attachment of a controller, or temperature limiter 9 on the water heater is a metal bracket 10 , which has direct contact with the tubular heater 1 , with 4 injected in the Kunststoffman tel.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893903649 DE3903649C1 (en) | 1989-02-08 | 1989-02-08 | Electric flow heater for liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893903649 DE3903649C1 (en) | 1989-02-08 | 1989-02-08 | Electric flow heater for liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3903649C1 true DE3903649C1 (en) | 1990-04-12 |
Family
ID=6373606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893903649 Expired - Fee Related DE3903649C1 (en) | 1989-02-08 | 1989-02-08 | Electric flow heater for liquids |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3903649C1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9301729U1 (en) * | 1993-02-09 | 1993-04-01 | E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De | |
DE4233676A1 (en) * | 1992-10-07 | 1994-04-14 | Ego Elektro Blanc & Fischer | Electric radiator for media, especially flow heaters |
DE102004004821A1 (en) * | 2004-01-30 | 2005-08-18 | BSH Bosch und Siemens Hausgeräte GmbH | Coffee machine with water heater |
DE102004004816A1 (en) * | 2004-01-30 | 2005-08-25 | BSH Bosch und Siemens Hausgeräte GmbH | Coffee machine with water heater |
ITPD20080317A1 (en) * | 2008-10-31 | 2010-05-01 | Astrel Srl | HEATING DEVICE FOR FLUIDS IN PIPES, PARTICULARLY FOR WATER HEATING FOR WHIRLPOOLS AND SIMILAR TANKS |
DE102009024059A1 (en) * | 2009-06-05 | 2010-12-09 | Eichenauer Heizelemente Gmbh & Co. Kg | Flow heater, has embossments that are formed together with surface of casing tube of inner tubular heating element, where embossments are formed as semi-circular embossments along cross section planes of tubular heating element |
WO2017003402A1 (en) * | 2015-06-30 | 2017-01-05 | Публичное Акционерное Общество "Компания Росток" | Heater |
DE102017003416A1 (en) * | 2017-04-07 | 2018-10-11 | Stiebel Eltron Gmbh & Co. Kg | Electric water heating system |
WO2020239271A1 (en) * | 2019-05-31 | 2020-12-03 | Valeo Thermal Commercial Vehicles Germany GmbH | Electric heating device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1559261A (en) * | 1976-12-22 | 1980-01-16 | Philips Nv | Heating apparatus for water |
DE3120682A1 (en) * | 1981-05-23 | 1982-12-16 | Horst 5241 Elben Hammes | Electrically heated forced-flow continuous heater |
DE3307962A1 (en) * | 1983-03-07 | 1984-09-20 | Siemens AG, 1000 Berlin und 8000 München | Electrical continuous-flow heater for a drinks dispenser |
DE3534754A1 (en) * | 1985-09-28 | 1987-04-02 | Bauknecht Hausgeraete | Electric continuous flow heater for domestic appliances |
EP0287772A1 (en) * | 1987-02-24 | 1988-10-26 | I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini | Heating element for household electrical appliances |
-
1989
- 1989-02-08 DE DE19893903649 patent/DE3903649C1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1559261A (en) * | 1976-12-22 | 1980-01-16 | Philips Nv | Heating apparatus for water |
DE3120682A1 (en) * | 1981-05-23 | 1982-12-16 | Horst 5241 Elben Hammes | Electrically heated forced-flow continuous heater |
DE3307962A1 (en) * | 1983-03-07 | 1984-09-20 | Siemens AG, 1000 Berlin und 8000 München | Electrical continuous-flow heater for a drinks dispenser |
DE3534754A1 (en) * | 1985-09-28 | 1987-04-02 | Bauknecht Hausgeraete | Electric continuous flow heater for domestic appliances |
EP0287772A1 (en) * | 1987-02-24 | 1988-10-26 | I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini | Heating element for household electrical appliances |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4233676A1 (en) * | 1992-10-07 | 1994-04-14 | Ego Elektro Blanc & Fischer | Electric radiator for media, especially flow heaters |
DE9301729U1 (en) * | 1993-02-09 | 1993-04-01 | E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De | |
DE102004004816B4 (en) | 2004-01-30 | 2021-10-28 | BSH Hausgeräte GmbH | Coffee machine with water heater |
DE102004004821A1 (en) * | 2004-01-30 | 2005-08-18 | BSH Bosch und Siemens Hausgeräte GmbH | Coffee machine with water heater |
DE102004004816A1 (en) * | 2004-01-30 | 2005-08-25 | BSH Bosch und Siemens Hausgeräte GmbH | Coffee machine with water heater |
US8511222B2 (en) | 2004-01-30 | 2013-08-20 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Coffee machine comprising a continuous heater |
US8528467B2 (en) | 2004-01-30 | 2013-09-10 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Coffee machine with a continuous flow heater |
ITPD20080317A1 (en) * | 2008-10-31 | 2010-05-01 | Astrel Srl | HEATING DEVICE FOR FLUIDS IN PIPES, PARTICULARLY FOR WATER HEATING FOR WHIRLPOOLS AND SIMILAR TANKS |
DE102009024059A1 (en) * | 2009-06-05 | 2010-12-09 | Eichenauer Heizelemente Gmbh & Co. Kg | Flow heater, has embossments that are formed together with surface of casing tube of inner tubular heating element, where embossments are formed as semi-circular embossments along cross section planes of tubular heating element |
WO2017003402A1 (en) * | 2015-06-30 | 2017-01-05 | Публичное Акционерное Общество "Компания Росток" | Heater |
DE102017003416A1 (en) * | 2017-04-07 | 2018-10-11 | Stiebel Eltron Gmbh & Co. Kg | Electric water heating system |
WO2020239271A1 (en) * | 2019-05-31 | 2020-12-03 | Valeo Thermal Commercial Vehicles Germany GmbH | Electric heating device |
CN113994155A (en) * | 2019-05-31 | 2022-01-28 | 法雷奥热商业车辆德国有限公司 | Electric heater |
KR20220017935A (en) * | 2019-05-31 | 2022-02-14 | 발레오 써멀 커머셜 비히클스 저머니 게엠베하 | electric heating device |
CN113994155B (en) * | 2019-05-31 | 2023-05-23 | 法雷奥热商业车辆德国有限公司 | Electric heater |
KR102628873B1 (en) | 2019-05-31 | 2024-01-25 | 발레오 써멀 커머셜 비히클스 저머니 게엠베하 | electric heating device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8320 | Willingness to grant licenses declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |